667 results match your criteria Imaging in Arteriovenous Lung Malformation


Structural and perfusion magnetic resonance imaging of congenital lung malformations.

Pediatr Radiol 2020 Jul 17;50(8):1083-1094. Epub 2020 Apr 17.

Department of Diagnostic Imaging, University Children's Hospital Zürich, Steinwiesstr. 75, CH 8032, Zürich, Switzerland.

Background: A radiation-free advanced imaging modality is desirable for investigating congenital thoracic malformations in young children.

Objective: To describe magnetic resonance imaging (MRI) findings of congenital bronchopulmonary foregut malformations and investigate the ability of lung MRI for their classification.

Materials And Methods: This is a retrospective analysis of consecutive MRI examinations performed for suspected congenital lung anomalies in 39 children (median age: 3. Read More

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http://dx.doi.org/10.1007/s00247-020-04658-5DOI Listing

CT Angiography Findings of Pulmonary Arteriovenous Malformations in Children and Young Adults With Hereditary Hemorrhagic Telangiectasia.

AJR Am J Roentgenol 2020 06 7;214(6):1369-1376. Epub 2020 Apr 7.

Department of Pharmacology, Korea University College of Medicine, Seoul, Republic of Korea.

The purpose of this study was to evaluate the CT angiography (CTA) findings of pulmonary arteriovenous malformation (PAVMs) in patients with hereditary hemorrhagic telangiectasia and to correlate these findings with those of graded contrast-enhanced transthoracic echocardiography (CE-TTE). A retrospective review was conducted of PAVMs visualized at CTA of patients with abnormal CE-TTE findings (3-point scale). Location, distribution, size, number, volume, grade, and relative attenuation (attenuation of PAVM divided by attenuation of aorta) of PAVMs were recorded. Read More

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http://dx.doi.org/10.2214/AJR.19.22012DOI Listing

Intravascular coil migration to bronchus: review of the literature with two case reports.

Tuberk Toraks 2019 Dec;67(4):307-313

Department of Chest Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey.

Pulmonary vascular abnormalities are important causes of hemoptysis. Arteriovenous malformation (AVM), pulmonary arterial aneurysms or invasion of the pulmonary arterial structures by the tumor may cause hemoptysis. Pulmonary artery aneurysms (PAA) are an infrequent disease of the pulmonary vasculature. Read More

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http://dx.doi.org/10.5578/tt.69010DOI Listing
December 2019

Embolization using hydrogel-coated coils for pulmonary arteriovenous malformations.

Diagn Interv Imaging 2020 Mar 10;101(3):129-135. Epub 2019 Nov 10.

Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho kita-ku, Okayama 700-8558, Japan.

Purpose: To prospectively evaluate the efficacy and safety of embolization using hydrogel-coated coils for the treatment of pulmonary arteriovenous malformations (PAVMs).

Materials And Methods: The outcomes of 21 PAVMs in 19 patients (3 men and 16 women; mean age, 58.8±15. Read More

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http://dx.doi.org/10.1016/j.diii.2019.10.008DOI Listing

Exertional hypoxia in a healthy adult: a pulmonary arteriovenous malformation.

BMJ Case Rep 2019 Oct 23;12(10). Epub 2019 Oct 23.

Department of Medicine, BUMED, Falls Church, Virginia, USA.

Pulmonary arteriovenous malformations (PAVMs) are a rare cause of pulmonary symptoms, including dyspnoea on exertion, hypoxemia and haemoptysis. PAVMs are an aetiology that is often overlooked by physicians when developing a differential diagnosis for pulmonary symptoms and unidentified lung masses. However, it is an important differential diagnosis to have as PAVMs can have serious sequelae including strokes, brain abscess and life-threatening bleeding. Read More

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http://dx.doi.org/10.1136/bcr-2019-231981DOI Listing
October 2019

Spontaneous closure of arterio-venous pulmonary fistulas by redirection of hepatic venous blood 9 years after Glenn anastomosis in a 12-year-old girl.

Cardiol Young 2019 Oct;29(10):1287-1289

Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technische Universität München, Germany.

We report on a 12-year-old girl with Ebstein's anomaly after a unidirectional Glenn procedure with surgical ligation of the proximal right pulmonary artery, who suffered from significant central cyanosis caused by multiple arterio-venous fistulas in the right lung. The continuity between the right pulmonary artery and the pulmonary trunk was restored with the use of radiofrequency perforation and consecutive covered stent implantation. Read More

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http://dx.doi.org/10.1017/S1047951119000465DOI Listing
October 2019

Arteriovenous fistula and high output cardiac failure in a double lung transplant patient.

BMJ Case Rep 2019 Aug 28;12(8). Epub 2019 Aug 28.

Department of Anesthesia, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

We present a case of a high cardiac output (CO) arteriovenous fistula (AVF) with pulmonary hypertension (PH) post-double lung transplant presenting for AVF occlusion. The patient presented with a CO of 9.83 L/min, pulmonary artery pressures of 64/16, inferior vena cava dilatation and an AVF between the left common iliac artery and vein. Read More

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http://dx.doi.org/10.1136/bcr-2019-229776DOI Listing
August 2019
2 Reads

Pulmonary arteriovenous malformation mimicking a lung mass.

Br J Hosp Med (Lond) 2019 Aug;80(8):ii

Assistant Professor, Department of Radiology, Section of Thoracic and Circulation Imaging, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.

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http://dx.doi.org/10.12968/hmed.2019.80.8.iiDOI Listing
August 2019
1 Read
0.366 Impact Factor

Expansion of pulmonary arteriovenous malformations after grand mal seizures and other circumstances of PAVM growth.

BMJ Case Rep 2019 Aug 10;12(8). Epub 2019 Aug 10.

Department of Medicine, Laniado Hospital, Sanz Medical Center, Netanya, Israel.

A woman with asymptomatic pulmonary arteriovenous malformation (PAVM) discovered incidentally on admission developed recurrent generalised seizures. Immediately after, the PAVM demonstrated marked expansion, and was safely resected. Congenital PAVMs (associated with hereditary haemorrhagic telangiectasia or sporadic) are considered stable lesions that exhibit very slow growth if at all. Read More

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http://dx.doi.org/10.1136/bcr-2019-229886DOI Listing
August 2019
2 Reads

Developmental lung anomalies in adults: A pictorial review.

Respir Med 2019 08 11;155:86-96. Epub 2019 Jul 11.

Vice Chair of Education, Director, Cardio-Thoracic Radiology, USA; University of Texas Health Science Center -UT Health, San Antonio, TX, USA. Electronic address:

Developmental lung anomalies represent a heterogeneous group of diverse, yet related abnormalities that involve the lung parenchyma, pulmonary vasculature or a combination of both-which usually present prenatally and in early childhood. However, a substantial number of cases go unnoticed during childhood and present either incidentally or with recurrent respiratory infections progressing into adulthood. Defective development of the tracheobronchial tree and the pulmonary vasculature are proposed to cause these developmental anomalies. Read More

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http://dx.doi.org/10.1016/j.rmed.2019.07.011DOI Listing
August 2019
10 Reads

Pulmonary arteriovenous malformations in a patient with single ventricle and polysplenia syndrome.

BMJ Case Rep 2019 Jul 2;12(7). Epub 2019 Jul 2.

Division of Pediatric Cardiology, National Center for Child Health and Development, Tokyo, Japan.

A 5-month-old girl with single ventricle, interrupted inferior vena cava and polysplenia syndrome palliated with bilateral Blalock-Taussig shunts developed severe cyanosis despite apparently increased pulmonary blood flow. Angiography revealed diffuse pulmonary arteriolar capillary dilatation and early pulmonary venous filling, suggesting the presence of pulmonary arteriovenous malformations. Abdominal angiography at 6 months demonstrated a large extrahepatic portosystemic shunt, which was percutaneously closed with a vascular plug. Read More

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http://dx.doi.org/10.1136/bcr-2019-229491DOI Listing
July 2019
4 Reads

Hepatic Vein Incorporation Into the Azygos System in Heterotaxy and Interrupted Inferior Vena Cava.

World J Pediatr Congenit Heart Surg 2019 05;10(3):330-337

1 Division of Cardiovascular Surgery, Heart Institute, Rady Children's Hospital, San Diego, CA, USA.

Background: Patients with heterotaxy, single ventricle and interrupted inferior vena cava are at risk of developing significant pulmonary arteriovenous malformations and cyanosis, and inequitable distribution of hepatic factor has been implicated in their development. We describe our experience with a technique for hepatic vein incorporation that reliably provides resolution of cyanosis and presumably equitable hepatic factor distribution.

Methods: A retrospective review of a single-surgeon experience was conducted for patients who underwent this modified Fontan operation utilizing an extracardiac conduit from the hepatic veins to the dominant superior cavopulmonary connection. Read More

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http://dx.doi.org/10.1177/2150135119842869DOI Listing
May 2019
6 Reads

Paradoxical Brain Embolism Caused by Isolated Pulmonary Arteriovenous Fistula Successfully Treated with Recombinant Tissue Plasminogen Activator.

J Stroke Cerebrovasc Dis 2019 Jul 18;28(7):e100-e101. Epub 2019 Apr 18.

Department of Neurology, Osaka City University Graduate School of Medicine, Osaka City, Japan.

Pulmonary arteriovenous fistula (PAVF), a vessel malformation connecting the pulmonary circulation to the systemic circulation while bypassing the pulmonary capillaries, can cause paradoxical cerebral infarction. It is often associated with hereditary hemorrhagic telangiectasia (HHT), a genetic disease characterized by multiple dermal, mucosal, and visceral telangiectasia causing recurrent bleeding. Paradoxical cerebral embolism caused by PAVF without HHT is rare. Read More

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http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2019.03.048DOI Listing
July 2019
16 Reads

Usefulness of 4D-Flow MRI in Mapping Flow Distribution Through Failing Fontan Circulation Prior to Cardiac Intervention.

Pediatr Cardiol 2019 Jun 13;40(5):1093-1096. Epub 2019 Apr 13.

Division of Cardiology, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, 13123 E 16th Ave, Aurora, CO, 80045-2560, USA.

We report a case of a 23-year-old male with failing Fontan circulation who was taken to the catheterization lab to better evaluate the Fontan circulation and hemodynamics. Catheterization revealed arteriovenous malformations exclusively present in the right lung leading to the consideration of placing stents to direct the inferior vena cava flow through the Fontan circuit to the right pulmonary artery (RPA), thus increasing the RPA concentration of the hepatic factor. However, comprehensive 4D-Flow MRI analyses indicated sufficient distribution of the hepatic flow between branch pulmonary arteries, and consequently no further invasive intervention to redirect hepatic flow was performed. Read More

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http://dx.doi.org/10.1007/s00246-019-02101-7DOI Listing
June 2019
9 Reads

Growth of Pulmonary Arteriovenous Malformations in Pediatric Patients with Hereditary Hemorrhagic Telangiectasia.

J Pediatr 2019 May 8;208:279-281. Epub 2019 Mar 8.

Division of Respiratory Medicine, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada; Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada; University of Toronto, Toronto, Ontario, Canada. Electronic address:

The evolution of pulmonary arteriovenous malformations (PAVMs) over time in children with hereditary hemorrhagic telangiectasia (HHT) is not well-defined. Herein we demonstrate that, although new PAVMs did not evolve in children with HHT, existing PAVMs exhibit quantitative growth over time highlighting the need for ongoing follow-up throughout childhood. Read More

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http://dx.doi.org/10.1016/j.jpeds.2018.12.069DOI Listing
May 2019
4 Reads

[Robot-Assisted Laparoscopic Prostatectomy for Patient with Hereditary Hemorrhagic Telangiectasia: A Case Report].

Hinyokika Kiyo 2018 Dec;64(12):505-508

The Department of Urology, Nara Prefecture General Medical Center.

A 69-year-old man who had a history of several nasal hemorrhages and transfusions presented with hereditary hemorrhagic telangiectasia. He was referred to the previous hospital due to the elevation of prostate specific antigen (PSA) to 17.2 ng/ml, and was diagnosed with prostate cancer (cT3aN0M0, Gleason 4 + 5). Read More

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http://dx.doi.org/10.14989/ActaUrolJap_64_12_505DOI Listing
December 2018
37 Reads

A 10-year-old boy with dyspnea and hypoxia: abernathy malformation masquerading as pulmonary arteriovenous fistula.

BMC Pediatr 2019 02 11;19(1):55. Epub 2019 Feb 11.

Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, No. 355 Luding Road, Shanghai, 200062, China.

Background: Abernethy malformation is an extremely rare congenital malformation characterised by an extrahepatic portosystemic shunt. Children with Abernathy malformation can develop hepatopulmonary syndrome (HPS) with pulmonary arteriovenous fistulas (PAVF) or pulmonary hypertension. PAVF manifests as central cyanosis with effort intolerance. Read More

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http://dx.doi.org/10.1186/s12887-019-1422-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371454PMC
February 2019
7 Reads

Exercise capacity reflects airflow limitation rather than hypoxaemia in patients with pulmonary arteriovenous malformations.

QJM 2019 May;112(5):335-342

Respiratory Medicine, Imperial College Healthcare NHS Trust, London, UK.

Background: Pulmonary arteriovenous malformations (PAVMs) generate a right-to-left shunt. Impaired gas exchange results in hypoxaemia and impaired CO2 clearance. Most patients compensate effectively but some are dyspneic, and these are rarely the most hypoxaemic. Read More

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http://dx.doi.org/10.1093/qjmed/hcz023DOI Listing
May 2019
6 Reads

Synchronous cerebral arteriovenous malformation and lung adenocarcinoma carcinoma brain metastases: A case study and literature review.

Neurochirurgie 2019 Feb 9;65(1):36-39. Epub 2019 Jan 9.

Department of Surgery, Division of Neurosurgery, University of Connecticut Health, Farmington, Connecticut, 06032, USA. Electronic address:

Introduction: While there are numerous published cases of arteriovenous malformations (AVMs) developing in the setting of malignancy, it is extremely rare to find them concurrently associated in the brain.

Clinical Case: This is the case of a 55-year-old male who presented to the emergency department complaining of headaches, memory and visual changes. Neuro-imaging revealed a right temporal parietal AVM and an adjoining hyperenhancing occipitotemporal lobe lesion with concern for a possible evolving stroke. Read More

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http://dx.doi.org/10.1016/j.neuchi.2018.07.003DOI Listing
February 2019
5 Reads

Complex pulmonary arteriovenous fistula in mother and daughter: Case report.

Medicine (Baltimore) 2019 Jan;98(2):e13922

Department of Cardiology, West China Hospital, Sichuan University, Chengdu.

Rationale: Complex pulmonary arteriovenous fistula (PAVF) is unusual, and even rarer in 2 members of a family. PAVF may not appear on chest X-ray or computed tomography imaging, especially in asymptomatic patients, and therapy is limited. Herein, PAVFs occurring in a mother and daughter are described, with the current standard methods of diagnosis and treatment of PAVF. Read More

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http://dx.doi.org/10.1097/MD.0000000000013922DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336614PMC
January 2019
10 Reads

Transcatheter redirection of hepatic venous blood to treat unilateral pulmonary arteriovenous malformations in a Fontan circulation by short-term total exclusion of the unaffected lung.

Catheter Cardiovasc Interv 2019 03 10;93(4):660-663. Epub 2019 Jan 10.

Division of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Stanford, California.

Clinically significant unilateral pulmonary arteriovenous malformations (PAVM) can develop in patients with a Fontan circulation when there is unbalanced distribution of hepatic venous (HV) blood flow to the lungs. There are reported surgical and transcatheter techniques to treat PAVMs by rerouting HV return, with promising short-term results. We report a case of a novel, technically simple transcatheter approach to redirect HV blood flow in an adult Fontan patient with polysplenia syndrome and severe unilateral PAVMs. Read More

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http://dx.doi.org/10.1002/ccd.28073DOI Listing
March 2019
2 Reads

Absence of renal phenotype in hereditary haemorrhagic telangiectasia.

Intern Med J 2018 Oct;48(10):1255-1257

Department of Genomic Medicine, Royal Melbourne Hospital, Melbourne, Victoria, Australia.

Hereditary haemorrhagic telangiectasia is characterised by abnormal blood vessel formation, producing telangiectasia and arteriovenous malformations in multiple organs. Information regarding possible renal involvement in hereditary haemorrhagic telangiectasia is limited. This study assessed renal structure and function in 11 patients with genetically confirmed diagnosis and known arteriovenous malformations in lung, liver, gastrointestinal tract or brain. Read More

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http://doi.wiley.com/10.1111/imj.14059
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http://dx.doi.org/10.1111/imj.14059DOI Listing
October 2018
12 Reads

Acquired Transpleural Systemic Artery-to-Pulmonary Artery Communication Mimicking a Pulmonary Arteriovenous Malformation and Causing a False-Positive Diagnosis of a Pulmonary Embolus.

J Vasc Interv Radiol 2018 09;29(9):1313-1315

Imaging Department, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom.

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http://dx.doi.org/10.1016/j.jvir.2017.12.016DOI Listing
September 2018
2 Reads

Where is the Origin of the Last Normal Branch from Feeding Artery of Pulmonary Arteriovenous Malformations?

Cardiovasc Intervent Radiol 2018 Dec 22;41(12):1849-1856. Epub 2018 Aug 22.

Department of Radiology, Oita University Faculty of Medicine, 1-1 Idaigaoka Hasama-machi, Yufu-shi, Oita, 879-5593, Japan.

Purpose: Reperfusion via pulmonary-to-pulmonary arterial anastomoses is known as one type of recurrence of pulmonary arteriovenous malformations (PAVMs) after embolization. It is important to occlude the fistulous portion beyond the origin of the last normal branch from feeding artery of PAVMs to prevent recurrence. In this study, we evaluate the origin of the last normal branch by CT as well as its visibility on pulmonary arteriography (PAG). Read More

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http://dx.doi.org/10.1007/s00270-018-2063-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6244990PMC
December 2018
2 Reads

Woman in her 50s with shortness of breath on exertion.

Heart 2019 01 9;105(2):110. Epub 2018 Aug 9.

Department of Cancer Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.

Clinical Introduction: A 59-year-old woman visited an outpatient cardiology clinic due to shortness of breath on exertion. Physical examination showed no significant abnormality of vital signs. A III/VI systolic murmur was heard on the fourth intercostal space at the right sternal border. Read More

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http://dx.doi.org/10.1136/heartjnl-2018-313655DOI Listing
January 2019
21 Reads

Pulmonary Arteriovenous Malformation After Metastatic Gestational Trophoblastic Tumor.

Arch Bronconeumol 2019 01 6;55(1):57-59. Epub 2018 Jun 6.

Service de Pneumologie, Hospices Civils de Lyon, Groupe Hospitalier Est, Lyon, France; Université Claude Bernard Lyon 1, France; Centre National de Référence des Maladies Pulmonaires Rares, Lyon, France.

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http://dx.doi.org/10.1016/j.arbres.2018.04.013DOI Listing
January 2019
5 Reads

Hepatopulmonary shunting on Tc99m-MAA liver mapping: correlation with dynamic cross-sectional imaging and description of different shunting patterns.

Abdom Radiol (NY) 2018 11;43(11):3001-3008

Division of Nuclear Medicine, Department of Radiology, University of Washington, 1959 N.E. Pacific Street, Box 357115, Seattle, WA, 98195-7115, USA.

Purpose: The purpose of the study was to correlate lung shunt fraction (LSF) calculated by intra-arterial injection of Technetium-99m (Tc-99m)-labeled macroaggregated albumin (MAA) in a hepatic artery branch with the presence of certain patterns of vascular shunts on dynamic CT or MRI of the liver.

Methods: This retrospective study was approved by the institutional review board and informed consent was waived. We reviewed 523 MAA scans in 453 patients (301 men, 152 women) performed from July 2007 to June 2015 and their correlative cross-sectional imaging. Read More

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http://dx.doi.org/10.1007/s00261-018-1602-4DOI Listing
November 2018
5 Reads

Patent Foramen Ovale and Hypoxemia.

Cardiol Rev 2019 Jan/Feb;27(1):34-40

Department of Cardiology, University Hospital of Bern, Bern, Switzerland.

Patent foramen ovale (PFO), an embryonic remnant of the fetal circulation, is present in 20-25% of adults. Although recent observational studies and clinical trials have established the link between PFO-mediated right-to-left shunting with cryptogenic stroke and migraine with aura, the role of a PFO in exacerbating hypoxemic medical conditions (ie, sleep apnea, chronic obstructive pulmonary disease, pulmonary hypertension, platypnea-orthodeoxia, pulmonary arteriovenous malformation, high-altitude pulmonary edema, and exercise desaturation) remains less understood. PFO-mediated hypoxemia occurs when deoxygenated venous blood from the right atrium enters and mixes with oxygenated arterial blood in the left atrium. Read More

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http://dx.doi.org/10.1097/CRD.0000000000000205DOI Listing
March 2019
35 Reads
2.410 Impact Factor

Utility of second-generation single-energy metal artifact reduction in helical lung computed tomography for patients with pulmonary arteriovenous malformation after coil embolization.

Jpn J Radiol 2018 Apr 10;36(4):285-294. Epub 2018 Feb 10.

Department of Radiology, Okayama University Hospital, 2-5-1 Shikatacho, Kita-ku, Okayama-city, 700-8558, Okayama, Japan.

Purpose: The quality of images acquired using single-energy metal artifact reduction (SEMAR) on helical lung computed tomography (CT) in patients with pulmonary arteriovenous malformation (PAVM) after coil embolization was retrospectively evaluated.

Materials And Methods: CT images were reconstructed with and without SEMAR. Twenty-seven lesions [20 patients (2 males, 18 females), mean age 61. Read More

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http://link.springer.com/10.1007/s11604-018-0723-6
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http://dx.doi.org/10.1007/s11604-018-0723-6DOI Listing
April 2018
15 Reads

Hereditary haemorrhagic telangiectasia in pregnancy: regional and general anaesthesia.

Int J Obstet Anesth 2018 02 13;33:84-86. Epub 2017 Nov 13.

Respiratory Department, Royal Infirmary of Edinburgh, 51 Little France Dr, Edinburgh, UK.

Hereditary haemorrhagic telangiectasia, also known as Osler-Weber-Rendu disease, is a rare autosomal dominant multisystem disorder, characterised by mucocutaneous telangiectases and arteriovenous malformations affecting any organ. The physiological changes in pregnancy pose significant obstetric and anaesthetic challenges for women affected by the disease. The optimal timing and mode of delivery requires careful consideration; and the benefits and risks of both regional and general anaesthetic techniques must be carefully considered, depending on the organs affected. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0959289X173029
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http://dx.doi.org/10.1016/j.ijoa.2017.11.002DOI Listing
February 2018
7 Reads

Echocardiography Grading for Pulmonary Arteriovenous Malformation Screening in Children with Hereditary Hemorrhagic Telangiectasia.

J Pediatr 2018 04 20;195:288-291.e1. Epub 2017 Dec 20.

University of Toronto, Toronto, Ontario, Canada; Division of Respiratory Medicine, Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Translational Medicine, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada. Electronic address:

Transthoracic contrast echocardiography (TTCE) has high sensitivity but low specificity in screening for pulmonary arteriovenous malformations (pAVMs) in children with hereditary hemorrhagic telangiectasia (HHT). Here we describe characteristics of TTCE that might be used to reduce the need for confirmatory computed tomography scans in children with HHT. Read More

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http://dx.doi.org/10.1016/j.jpeds.2017.11.047DOI Listing
April 2018
84 Reads

Unusual synchronous liver and brain abscesses infected by rare Aerococcus viridians in a patient with pulmonary arteriovenous malformations on FDG PET/CT: A case report and literature review.

Medicine (Baltimore) 2017 Dec;96(49):e9048

aThe First Affiliated Hospital of Medical School of Zhejiang University, Hangzhou, ZhejiangbKey Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China.

Rationale: Pulmonary arteriovenous malformations (PAVMs) complicated with multiple organ abscesses is an uncommon manifestation. Because of the low incidence of the disease, F-18 fluorodeoxyglucose positron emission tomography with computed tomography (F-FDG PET/CT) imaging studies for PAVMs complicated with multiple organ abscesses are scarce.

Patient Concerns: We report a case of a 54-year-old man presenting with PAVMs complicated with synchronous multiple organ abscesses founded by F-FDG PET/CT. Read More

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http://dx.doi.org/10.1097/MD.0000000000009048DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5728921PMC
December 2017
12 Reads

Characterization of pulmonary arteriovenous malformations in ACVRL1 versus ENG mutation carriers in hereditary hemorrhagic telangiectasia.

Genet Med 2018 Jun 19;20(6):639-644. Epub 2017 Oct 19.

Department of Radiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

PurposePulmonary arteriovenous malformations (pAVMs) are major contributors to morbidity and mortality in hereditary hemorrhagic telangiectasia (HHT). Mutations in ENG and ACVRL1 underlie the vast majority of clinically diagnosed cases. The aims of this study were to characterize and compare the clinical and morphologic features of pAVMs between these two genotype groups. Read More

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http://dx.doi.org/10.1038/gim.2017.160DOI Listing
June 2018
52 Reads

Pulmonary arteriovenous malformations in hereditary haemorrhagic telangiectasia: Correlations between computed tomography findings and cerebral complications.

Eur Radiol 2018 Mar 10;28(3):1338-1344. Epub 2017 Oct 10.

Hospices Civils de Lyon, Hôpital Cardiologique Louis Pradel, Département d'Imagerie Cardiaque et Thoracique, Diagnostique et Interventionnelle, 59 Boulevard Pinel, 69500, Bron, France.

Objectives: Computed tomography (CT) is the modality of choice to characterise pulmonary arteriovenous malformations (PAVMs) in patients with hereditary haemorrhagic telangiectasia (HHT). Our objective was to determine if CT findings were associated with frequency of brain abscess and ischaemic stroke.

Methods: This retrospective study included patients with HHT-related PAVMs. Read More

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http://dx.doi.org/10.1007/s00330-017-5047-xDOI Listing
March 2018
15 Reads

Recurrent Cerebral Hemorrhage in Normal Pregnancy Secondary to Mycotic Pseudoaneurysms Related to Choriocarcinoma.

World Neurosurg 2018 Jan 5;109:247-250. Epub 2017 Oct 5.

Houston Methodist Neurological Institute, Texas Medical Center, Houston, Texas, USA.

Background: Choriocarcinoma coexisting with or after normal pregnancy is extremely rare. To our knowledge, our case report is the first time cerebral mycotic pseudoaneurysms from choriocarcinoma have been proven angiographically.

Case Description: A 38-week pregnant 26-year-old woman presented with an acute left frontal hemorrhage. Read More

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http://dx.doi.org/10.1016/j.wneu.2017.09.187DOI Listing
January 2018
41 Reads

Can the "pine-needle sign" on computed tomography be used to differentiate pulmonary arteriovenous malformation from its mimics? Analysis based on dynamic contrast-enhanced chest computed tomography in adults.

Eur J Radiol 2017 Oct 31;95:314-318. Epub 2017 Aug 31.

Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan. Electronic address:

Objectives/purpose: To determine the diagnostic value of morphological features on computed tomography (CT) in the differentiation of pulmonary arteriovenous malformation (pAVM) and its mimics.

Materials And Methods: We retrospectively examined 59 consecutive patients (109 lesions) with initially suspected or occult pAVM who underwent contrast-enhanced chest CT from January 2006 to June 2016. All lesions were divided into two groups based on their diagnosis: AVM (n=93) and non-AVM (n=16). Read More

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http://dx.doi.org/10.1016/j.ejrad.2017.08.032DOI Listing
October 2017
23 Reads

Systemic Artery to Pulmonary Vein Fistula After Right Upper Lobectomy Demonstrated by 4-Dimensional Flow Magnetic Resonance Imaging.

Ann Thorac Surg 2017 Aug;104(2):e169-e171

Department of Thoracic Surgery, Paris Descartes University, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France; Sorbonne Paris Cité University, Paris Descartes University, Paris, France. Electronic address:

Postoperative systemic artery to pulmonary vein fistula is very rare. In this report, we describe an exceptional condition of both intrapulmonary arteriovenous fistula and systemic artery to pulmonary vein fistula, involving all right hemithoracic systemic arteries, inducing left-to-left shunt. This condition was responsible for heart failure, 24 years after a right upper lobectomy for inflammatory tumor. Read More

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http://dx.doi.org/10.1016/j.athoracsur.2017.02.061DOI Listing
August 2017
16 Reads

Dieulafoy's disease of the bronchial tree: a case report.

Sao Paulo Med J 2017 Jul-Aug;135(4):396-400. Epub 2017 May 29.

MD. Resident of General Surgery, Iran University of Medical Sciences, Rasool Akram Hospital, Shahrara, Tehran, Iran.

Context:: Dieulafoy's disease of the bronchial tree is a very rare condition. Few cases have been reported in the literature. It can be asymptomatic or manifest with massive hemoptysis. Read More

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http://dx.doi.org/10.1590/1516-3180.2016.0258191116DOI Listing
October 2017
16 Reads

Hepatopulmonary syndrome with large pulmonary arteriovenous malformations: CT findings with emphasis on its association with a mosaic pattern of the lung parenchyma.

Rev Esp Enferm Dig 2017 May;109(5):369

Hospital Universitario Ramón y Cajal.

We present a case of a 54-year-old patient with cirrhosis, progressive dyspnea, and platypnea. Thoracic computed tomography (CT) showed multiple pulmonary arteriovenous malformations (PAVM), confirming the diagnosis of hepatopulmonary syndrome (HPS). Besides precisely identifying the number and location of PAVM, CT also demonstrated a striking mosaic pattern of the lung parenchyma, characterized by the presence of alternating geographic areas of low attenuation (showing pulmonary vessels with a decreased diameter) with regions of relatively increased attenuation (showing pulmonary vessels with a normal diameter). Read More

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May 2017
17 Reads

Coil Intrabronchial Migration in an Arteriovenous Malformation Patient Treated 10 Years Ago.

Ann Thorac Cardiovasc Surg 2017 Aug 28;23(4):200-202. Epub 2017 Apr 28.

Department of General Thoracic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Kagoshima, Japan.

A 56-year-old male who had received transcatheter coil deposition 10 years ago for an arteriovenous malformation (AVM) was admitted to our hospital because of persistent hemosputum. Chest radiograph and bronchoscopy revealed straightened coil bundles in his air way. Recently, less invasive transcatheter intervention has been performed more frequently for treatment of AVM than surgical resection. Read More

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https://www.jstage.jst.go.jp/article/atcs/23/4/23_cr.16-0025
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http://dx.doi.org/10.5761/atcs.cr.16-00250DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5569255PMC
August 2017
10 Reads

Transarterial embolization of intralobar pulmonary sequestration in a young adult with hemoptysis.

J Thorac Dis 2017 Mar;9(3):E188-E193

Department of Medical Imaging, Western University, Victoria Hospital, London Health Sciences Centre, London, Ontario N6A 5W9, Canada.

Intralobar pulmonary sequestration is a rare congenital malformation characterized by the presence of dysplastic lung that does not communicate with the tracheobronchial tree, and has aberrant systemic arterial supply. While most are asymptomatic, they rarely can present with hemoptysis, which has been traditionally managed with surgical resection of the sequestration. We report a case of an 18-year-old male who presented with acute large-volume hemoptysis on a background of recurrent minor episodes of hemoptysis, due to intralobar sequestration. Read More

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http://dx.doi.org/10.21037/jtd.2017.02.82DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5394002PMC
March 2017
4 Reads

Effect of pulmonary arteriovenous malformations on the mechanical properties of the lungs.

BMC Pulm Med 2017 04 19;17(1):64. Epub 2017 Apr 19.

Consultation Pluridisciplinaire Maladie de Rendu Osler, Université de Versailles SQY, APHP, Hôpital Ambroise Paré, Boulogne-Billancourt, France.

Background: Pulmonary arteriovenous malformations (PAVMs) are present in approximately 15-50% individuals with hereditary hemorrhagic telangiectasia (HHT). They may be isolated but more often are multiple. The goal of this study was to evaluate the influence of PAVMs on lung mechanical properties. Read More

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http://dx.doi.org/10.1186/s12890-017-0411-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5395778PMC
April 2017
18 Reads

Pulmonary Arteriovenous Malformation Detected by Three-dimensional Computed Tomographic Angiography.

Heart Lung Circ 2017 Aug 22;26(8):e59-e61. Epub 2017 Mar 22.

Department of the Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, China. Electronic address:

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http://dx.doi.org/10.1016/j.hlc.2017.02.016DOI Listing
August 2017
6 Reads

Hereditary hemorrhagic telangiectasia patient presenting with brain abscess due to silent pulmonary arteriovenous malformation.

Pan Afr Med J 2016 11;25:145. Epub 2016 Nov 11.

Department of Neurosurgery, University of Athens Medical School, "Evangelismos" General Hospital, Athens, Greece.

Hereditary hemorrhagic telangiectasia is a rare autosomal dominant inherited disease that is usually complicated by visceral vascular malformations. Patients harboring such malformations are at increased risk of brain abscess formation, which despite advances in diagnostic and surgical methods remains a life threatening medical emergency with high mortality and morbidity rates. In the present report we describe a case of cerebral abscess due to silent pulmonary arteriovenous malformation (AVM) in a young patient previously undiagnosed for hereditary hemorrhagic telangiectasia syndrome (HHT). Read More

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http://dx.doi.org/10.11604/pamj.2016.25.145.11010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5326030PMC
April 2017
19 Reads

Indicators of Lung Shunt Fraction Determined by Technetium-99 m Macroaggregated Albumin in Patients with Hepatocellular Carcinoma.

Cardiovasc Intervent Radiol 2017 Aug 9;40(8):1213-1222. Epub 2017 Mar 9.

Section of Interventional Radiology, Department of Radiology, Northwestern Memorial Hospital, Robert H. Lurie Comprehensive Cancer Center, 676 N. St. Clair Street, Suite 800, Chicago, IL, USA.

Purpose: To determine the correlation of pre-procedural and imaging characteristics with lung shunt fraction (LSF) measured by technetium-99 m macroaggregated albumin (Tc-MAA) scan in patients with hepatocellular carcinoma.

Methods: A retrospective study was conducted of 428 subjects with hepatocellular carcinoma from 2004 to 2011 assessed for lung shunting by Tc-MAA scan. Baseline characteristics included age, gender, ethnicity, tumor burden, maximum dimension, number of lesions, presence of extrahepatic metastases, macrovascular (hepatic and portal vein) invasion, ascites on imaging, laboratory values, and alpha-fetoprotein (AFP). Read More

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http://dx.doi.org/10.1007/s00270-017-1619-zDOI Listing
August 2017
78 Reads

Hemoglobin Is a Vital Determinant of Arterial Oxygen Content in Hypoxemic Patients with Pulmonary Arteriovenous Malformations.

Ann Am Thorac Soc 2017 Jun;14(6):903-911

5 Cardiovascular Sciences, National Heart and Lung Institute, Imperial College London, London, United Kingdom.

Rationale: Pa and Sa are commonly measured in respiratory practice, but arterial oxygen content (Ca) refers to the volume of oxygen delivered to the tissues per unit blood volume. Ca is calculated from Sa and the hemoglobin concentration in blood, recognizing that each gram of hemoglobin can transport approximately 1.34 ml of oxygen when fully saturated. Read More

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http://dx.doi.org/10.1513/AnnalsATS.201611-872OCDOI Listing
June 2017
35 Reads

Surgical treatment of pulmonary arteriovenous malformations.

Turk J Med Sci 2017 Feb 27;47(1):161-166. Epub 2017 Feb 27.

Department of Thoracic Surgery, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey.

Background/aim: Pulmonary arteriovenous malformations (PAVMs) are direct communications between the branches of pulmonary arteries and veins. This study evaluates surgically treated cases of pulmonary arteriovenous malformations.

Materials And Methods: We retrospectively examined 41 cases of PAVM that were operated in our clinic between 1995 and 2012. Read More

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http://dx.doi.org/10.3906/sag-1509-30DOI Listing
February 2017
14 Reads

Non-invasive CT screening for pulmonary arteriovenous malformations in children with confirmed hereditary hemorrhagic telangiectasia: Results from two pediatric centers.

Pediatr Pulmonol 2017 05 6;52(5):642-649. Epub 2017 Feb 6.

Service de Pédiatrie, Centre Hospitalier Intercommunal de Créteil, Créteil 94000, France.

Background: Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant genetic disorder that is caused by mutations in mainly two genes, that is ENG, encoding endoglin (HHT1), or ACVRL1, encoding activin receptor-like kinase 1 (ALK-1/HHT2). HHT is characterized by recurrent epistaxis, mucocutaneous telangiectasia, and vascular visceral dysplasia responsible for visceral arteriovenous malformations (AVM).

Aim: to report the experience of two university hospitals (Trousseau, Paris, and CHIC, Creteil) with screening children for HHT and pulmonary AVM (PAVM) using high resolution computed tomography (HRCT). Read More

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http://dx.doi.org/10.1002/ppul.23649DOI Listing
May 2017
170 Reads

Gestational choriocarcinoma with renal and pulmonary metastases lacking a primary uterine origin.

Taiwan J Obstet Gynecol 2016 Dec;55(6):881-885

Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. Electronic address:

Objective: We describe a case of gestational choriocarcinoma metastasized to the kidney and lung, which presented initially as refractory hematuria after a term pregnancy 5 years earlier.

Case Report: A 35-year-old woman, G2P1, with a previous history of full-term pregnancy in 2009, presented to the emergency department complaining of intermittent gross hematuria for 2 months. Abdominal computed tomography showed a suspicious arteriovenous malformation in the right kidney and a thrombus within the right renal vein. Read More

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http://dx.doi.org/10.1016/j.tjog.2015.08.028DOI Listing
December 2016
32 Reads

Transcatheter Closure of Perimembranous Ventricular Septal Defects Using Dual Wire-Maintaining Technique.

Heart Lung Circ 2017 Jul 7;26(7):690-695. Epub 2016 Dec 7.

Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, PR China. Electronic address:

Objective: The present study was designed to evaluate the safety and feasibility of transcatheter closure of perimembranous ventricular septal defects (PmVSDs) with dual wire-maintaining technique (DWMT).

Patients/methods: From January 2010 to December 2013, a total of 241 patients (men: 109, women: 132; mean age: 22.2±15. Read More

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http://dx.doi.org/10.1016/j.hlc.2015.06.834DOI Listing
July 2017
22 Reads