74,869 results match your criteria Mitral Valve


Continuous positive airway pressure improves work of breathing in pediatric chronic heart failure.

Sleep Med 2021 Apr 19;83:99-105. Epub 2021 Apr 19.

Pediatric Noninvasive Ventilation and Sleep Unit, Hôpital Necker-Enfants Malades F-75015, Paris, France; Université de Paris, VIFASOM F-75004, Paris, France.

Background: Sleep disordered breathing (SDB) is common in adults with chronic heart failure (CHF), but its prevalence in children remains unclear. Continuous positive airway pressure (CPAP) is the treatment of SDB but deleterious hemodynamic effects have been reported.

Methods: We prospectively analyzed SDB in children with CHF and the effect of CPAP on work of breathing (WOB) and cardiac index (CI). Read More

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Transcatheter mitral valve replacement: an update.

Curr Opin Cardiol 2021 May 14. Epub 2021 May 14.

Department of Cardiovascular Medicine Department of Cardiovascular Surgery, Houston Methodist DeBakey Heart and Vascular Institute, Houston, Texas, USA.

Purpose Of Review: A significant number of patients with mitral valve disease are at high to prohibitive risk for surgical repair or replacement. Transcatheter mitral valve interventions have evolved over the last few years. We review the recent growing evidence on transcatheter mitral valve replacement (TMVR). Read More

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Long-term results of triple valve repair in rheumatic heart disease.

Asian Cardiovasc Thorac Ann 2021 May 14:2184923211018030. Epub 2021 May 14.

Department of Cardiothoracic Surgery, 501944Narayana Institute of Cardiac Sciences, Narayana Health, Bangalore, India.

Background: The aim of this study is to analyze the clinical outcomes of triple valve repair for rheumatic heart disease in terms of both early results and long-term benefits.

Methods: Between January 2008 and December 2016, all the patients who underwent triple valve repair for rheumatic heart disease were included in this study.

Results: Thirty-eight patients underwent triple valve repair procedure for rheumatic heart disease at our institute. Read More

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Optimizing Timing of Valve intervention in Asymptomatic Severe Valvular Heart Disease.

Can J Cardiol 2021 May 11. Epub 2021 May 11.

Department of Cardiology, Montreal Heart Institute, Montreal, Canada. Electronic address:

The management of valvular heart disease (VHD) has changed dramatically over the past decade with advances in cardiac imaging, the use of novel biomarkers and the development of transcatheter valve repair and replacement technology. International society guidelines have kept pace to provide recommendations for diagnosis, follow up and timing of intervention. The most challenging patient cohort for clinicians are patients with asymptomatic severe disease in whom the optimal timing of intervention can be ill-defined. Read More

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Prevalence and Associated Factors of Portopulmonary Hypertension in Patients with Portal Hypertension: A Case-Control Study.

Biomed Res Int 2021 20;2021:5595614. Epub 2021 Apr 20.

Department of Hepatology, First Hospital of Jilin University, Xinmin Street, No. 71, Changchun, Jilin Province 130021, China.

Background And Aims: There are few studies on the prevalence and clinical characteristics of portopulmonary hypertension (POPH) in patients with portal hypertension. In addition, invasive right heart catheterization further limits the clinical diagnosis of POPH patients.

Methods: From January 2018 to December 2019, 1004 patients with portal hypertension were treated in the Department of Hepatology, the First Hospital of Jilin University. Read More

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Hemodynamic testing using three-dimensional printing and computational fluid dynamics preoperatively may provide more information in mitral repair than traditional image dataset.

Ann Transl Med 2021 Apr;9(8):632

Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China.

Background: Mitral valve repair (MVR) has been considered superior to mitral replacement for degenerative MV disease and even rheumatic diseases. However, the repair rate varies widely depending on the medical center and the surgeons' experience. The aim of our study was to apply three-dimensional printing (3DP) and computational fluid dynamics (CFD) in surgical simulation to provide reference for surgical decision-making, especially for inexperienced surgeons. Read More

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Machine learning models to predict red blood cell transfusion in patients undergoing mitral valve surgery.

Ann Transl Med 2021 Apr;9(7):530

Department of Transfusion, Zhongshan Hospital, Fudan University, Shanghai, China.

Background: Red blood cell (RBC) transfusion therapy has been widely used in surgery, and has yielded excellent treatment outcomes. However, in some instances, the demand for RBC transfusion is assessed by doctors based on their experience. In this study, we use machine learning models to predict the need for RBC transfusion during mitral valve surgery to guide the surgeon's assessment of the patient's need for intraoperative blood transfusion. Read More

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Erratum: Expression Profile of Circulating MicroRNAs in Dogs With Cardiac Hypertrophy: A Pilot Study.

Authors:

Front Vet Sci 2021 27;8:693891. Epub 2021 Apr 27.

[This corrects the article DOI: 10.3389/fvets.2021. Read More

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Convexal Subarachnoid Hemorrhage Caused by Infective Endocarditis in a Patient with Advanced Human Immunodeficiency Virus (HIV): The Culprits and Bystanders.

Am J Case Rep 2021 May 14;22:e931376. Epub 2021 May 14.

Department of Infectious Disease, Rockledge Regional Medical Center, Rockledge, FL, USA.

BACKGROUND Convexal subarachnoid hemorrhage (cSAH), a rare form of non-aneurysmal subarachnoid hemorrhage, is confined to cerebral convexities without extension into basal cisterns or ventricles. Typical presentation includes thunderclap/progressive headache or transient focal neurological symptoms; rare manifestations include seizures, intractable vomiting, or altered mental status. Here, we report the first case of convexal subarachnoid hemorrhage and multifocal ischemic lesions caused by infective endocarditis (IE) in a treatment-naïve advanced HIV patient. Read More

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Expert contributions enhance knowledge of valvular heart disease.

J Thorac Cardiovasc Surg 2021 Apr 17. Epub 2021 Apr 17.

Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, Calif.

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The ongoing impact of COVID-19 on adult cardiac surgery and suggestions for safe continuation throughout the pandemic: a review of expert opinions.

Perfusion 2021 May 13:2676591211013730. Epub 2021 May 13.

Department of Cardiac Surgery/Cardiovascular Sciences, Bristol Heart Institute, University of Bristol, Bristol, UK.

Objectives: To establish the impact of the COVID-19 pandemic on adult cardiac surgery by reviewing current data and use this to establish methods for safely continuing to carry out surgery.

Methods: Conduction of a literature search via PubMed using the search terms: '(adult cardiac OR cardiothoracic OR surgery OR minimally invasive OR sternotomy OR hemi-sternotomy OR aortic valve OR mitral valve OR elective OR emergency) AND (COVID-19 or coronavirus OR SARS-CoV-2 OR 2019-nCoV OR 2019 novel coronavirus OR pandemic)'. Thirty-two articles were selected. Read More

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Color Doppler Splay: a New Tool for the Assessment of Valvular Regurgitations?

J Am Soc Echocardiogr 2021 May 10. Epub 2021 May 10.

Department of Cardiology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy.

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Left ventricular outflow tract area after percutaneous transseptal transcatheter mitral valve implantation: A three-dimensional transesophageal echocardiography study.

Echocardiography 2021 May 13. Epub 2021 May 13.

Department of Noninvasive Cardiac Laboratory, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, USA.

Background: Left ventricular (LV) outflow tract (LVOT) obstruction increases mortality in patients undergoing transcatheter mitral valve implantation (TMVI) in degenerated bioprostheses, annuloplasty rings, and native mitral valves. We aimed to evaluate the LVOT area after TMVI using 3-dimensional (3D) transesophageal echocardiography (TEE) and to investigate the preprocedural cardiac geometry that affects the LVOT area after TMVI.

Methods: We retrospectively reviewed echocardiography data in 43 patients who had TMVI. Read More

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Comparison of porcine versus bovine pericardial bioprosthesis in the mitral position.

J Card Surg 2021 May 12. Epub 2021 May 12.

Department of Cardiovascular Surgery, Kokura Memorial Hospital, Kitakyushu, Fukuoka, Japan.

Background: There are no reports of midterm outcomes after mitral valve replacement with a 25-mm bioprosthesis in a large series of patients. This study aimed to examine perioperative and midterm outcomes of bioprosthetic valve choice, porcine or bovine pericardial, in the mitral position, focusing on 25-mm valves.

Methods: From 2007 to 2018, 467 patients received a mitral bioprosthesis, with or without concomitant procedures. Read More

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From secondary to tertiary mitral regurgitation: the paradigm shifts, but uncertainties remain.

Eur Heart J Cardiovasc Imaging 2021 May 13. Epub 2021 May 13.

Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland.

Secondary mitral regurgitation (MR) is the most common and undertreated form of MR, whose contribution to poor prognosis and indications to correction remains under discussion. MR has been characterized into 'proportionate' or 'disproportionate', based on left ventricle (LV) and regurgitant volumes, whereas 'tertiary' MR identifies conditions, in which regurgitation is pathologic per se and actively contributes to LV dysfunction. Echocardiographic and anatomo-pathological studies revealed that secondary MR prompts subtle leaflet maladaptive changes, actively contributing to the dynamic progression of secondary MR. Read More

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[Suspected Takotsubo Cardiomyopathy after Elective Mitral Valve Replacement:Report of a Case].

Kyobu Geka 2021 May;74(5):358-361

Department of Cardiovascular Surgery, Hamamatsu Rosai Hospital, Hamamatsu, Japan.

Reports of takotsubo cardiomyopathy following cardiac surgery are rare. We report a case of postoperative takotsubo cardiomyopathy after mitral valve replacement (MVR). The patient was a 70-yearold woman with mitral stenosis, regurgitation, and a medical history of long-standing persistent atrial fibrillation. Read More

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[Mitral Valve Repair via Right Thoracotomy Thirty-seven Years after Right Pneumonectomy:Report of a Case].

Kyobu Geka 2021 May;74(5):353-357

Department of Cardiovascular Surgery, Tokyo Rinkai Hospital, Tokyo, Japan.

A 57-year-old man was referred to our hospital due to dyspnea on exertion with severe mitral regurgitation. Because he had underdone right pneumonectomy 37 years earlier due to congenital defect of the right pulmonary artery, his mediastinum was severely shifted to the right, and his pulmonary function was poor. Mitral valve repair was successfully performed with right thoracotomy approach, which made excellent exposure of the mitral valve. Read More

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Takotsubo Syndrome After Transcatheter Mitral Valve Repair.

Circ J 2021 May 13. Epub 2021 May 13.

Department of Cardiovascular Medicine, Graduate School of Medicine, Hokkaido University.

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Safety, effectiveness and costs of percutaneous mitral valve repair: A real-world prospective study.

PLoS One 2021 12;16(5):e0251463. Epub 2021 May 12.

The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, United Kingdom.

Aims: Percutaneous mitral valve leaflet repair is a treatment option for some people with severe mitral valve regurgitation for whom conventional mitral valve surgery is clinically inappropriate. This study aimed to determine the safety, efficacy, and costs of percutaneous mitral valve leaflet repair, using the MitraClip device in a UK setting.

Methods And Results: This was a prospective, single-armed registry with a follow-up of 2 years that reported a range of procedural, clinical and patient-orientated outcomes. Read More

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Automatic extraction of the mitral valve chordae geometry for biomechanical simulation.

Int J Comput Assist Radiol Surg 2021 May 12. Epub 2021 May 12.

CNRS, Inria, LORIA, Université de Lorraine, Nancy, France.

Purpose: Mitral valve computational models are widely studied in the literature. They can be used for preoperative planning or anatomical understanding. Manual extraction of the valve geometry on medical images is tedious and requires special training, while automatic segmentation is still an open problem. Read More

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Avoiding anticoagulation drugs for postoperative atrial fibrillation enabled successful conservative treatment of left atrial dissection: a case report.

Surg Case Rep 2021 May 12;7(1):120. Epub 2021 May 12.

Department of Cardiovascular Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, 010-8543, Japan.

Background: Left atrial dissection is a rare complication of cardiac surgery, most commonly associated with mitral valve surgery. Herein, we report on the successful conservative treatment of left atrial dissection while avoiding anticoagulation therapy.

Case Presentation: A 64-year-old man developed left atrial dissection during operation for acute type A aortic dissection, most likely due to retrograde cardioplegia cannulation. Read More

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Real-Time Monitoring and Step-by-Step Guidance for Transapical Mitral Valve Edge-to-Edge Repair Using Transesophageal Echocardiography.

J Interv Cardiol 2021 21;2021:6659261. Epub 2021 Apr 21.

Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China.

MitraClip edge-to-edge (E2E) repair system is the only transcatheter device recommended in the current guidelines for treating mitral regurgitation (MR). The percutaneous femoral venous transseptal access of MitraClip requires a complex steerable delivery system and may thus be technically complex to optimally position and deploy the clip onto the mitral valve. A transapical approach for E2E repair has been devised to treat MR for the ease of operation (ValveClamp system, Hanyu Medical Technology, Shanghai). Read More

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Outcomes after Transcatheter Mitral Valve Edge to Edge Repair; a Comparison of Two Pathologies.

Acta Cardiol Sin 2021 May;37(3):286-295

Department of Adult Cardiology.

Background: The clinical use of transcatheter mitral valve repairis growing. We aimed to compare the clinical and echocardiographic outcomes after transcatheter mitral valve repair using the edge-to-edge technique in patients with functional and degenerative mitral regurgitation (MR). Furthermore, we correlated the clinical and echocardiographic measurements. Read More

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[Hybrid Treatment for Left Internal Thoracic Artery-Pulmonary Artery Fistula with Aneurysm Complicated with Mitral Regurgitation:Report of a Case].

Kyobu Geka 2021 Feb;74(2):152-155

Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan.

A 78-year-old man with mitral regurgitation incidentally diagnosed with aneurysm of the left internal thoracic artery(LITA) and several internal thoracic artery-pulmonary artery( ITA-PA) fistulas originating from the aneurysm. To prevent rupture of the aneurysm, ITA ligation was performed during surgery for the mitral valve. Because of the complex anatomy surrounding the aneurysm, the main duct of the ITA was ligated at the peripheral and center of the aneurysm, then arterial fistulae were resected as many as possible. Read More

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February 2021

[Surgical Excision of Calcified Amorphous Tumors on Mitral and Aortic Valves:Report of a Case].

Kyobu Geka 2021 Feb;74(2):134-137

Department of Cardiovascular Surgery, Kobe City Medical Center General Hospital, Kobe, Japan.

Calcified amorphous tumor (CAT) is a nonneoplastic cardiac tumor that can be located in any of the four cardiac chambers, but is predominantly detected on the mitral valve. We report a rare case of CAT originating from the mitral and aortic valves. A 69-year-old woman with end-stage renal disease, hypertension, and diabetes mellitus was referred to our hospital for the evaluation of cardiac masses found incidentally on screening transthoracic echocardiography. Read More

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February 2021

Unilateral Pulmonary Edema After Robotically Assisted Mitral Valve Repair Requiring Veno-Venous Extracorporeal Membrane Oxygenation.

J Cardiothorac Vasc Anesth 2021 Apr 5. Epub 2021 Apr 5.

Department of Anesthesia and Critical Care, University of Chicago, Chicago, IL. Electronic address:

Unilateral pulmonary edema (UPE) is an uncommon yet potentially life-threatening complication of minimally invasive cardiac surgery (MICS). Most frequently described after robotically assisted mitral valve (MV) repair, it is characterized by right lung edema, hypoxemia, hypercapnia, pulmonary hypertension, and hemodynamic instability beginning minutes-to-hours after separation from cardiopulmonary bypass (CPB). The authors describe a severe case with refractory hypoxemia requiring veno-venous (VV) extracorporeal membrane oxygenation (ECMO) after robotically assisted MV repair. Read More

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Understanding the influence of left ventricular assist device inflow cannula alignment and the risk of intraventricular thrombosis.

Biomed Eng Online 2021 May 11;20(1):47. Epub 2021 May 11.

Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, 3800, Australia.

Background: Adverse neurological events associated with left ventricular assist devices (LVADs) have been suspected to be related to thrombosis. This study aimed to understand the risks of thrombosis with variations in the implanted device orientation. A severely dilated pulsatile patient-specific left ventricle, modelled with computational fluid dynamics, was utilised to identify the risk of thrombosis for five cannulation angles. Read More

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The effects of interventional mitral valve repair using the MitraClip System on the results of pulmonary function testing, pulmonary pressure and diffusing capacity of the lung.

BMC Cardiovasc Disord 2021 May 11;21(1):235. Epub 2021 May 11.

Department of Internal Medicine and Cardiology, Pirna Hospital, Pirna, Germany.

Background: The study analyzes changes in lung function, pulmonary pressure and diffusing capacity of the lung in patients with mitral valve regurgitation (MR) treated by MitraClip implantation.

Methods: A total of 43 patients (19 women and 24 men with an average age of 78.0 ± 6. Read More

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Clipping mitral valve or atrial fibrillation? Two is better than one!

Catheter Cardiovasc Interv 2021 May;97(6):1257-1258

Cardiology Department, Azienda Ospedaliera Ordine Mauriziano di Torino, Torino, Italy.

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Tailwind of transcatheter mitral valve repair pushes forward the treatment of acute mitral regurgitation after myocardial infarction.

Catheter Cardiovasc Interv 2021 May;97(6):1268-1269

Department of Cardiac, Thoracic, Vascular Science and Public Health, University of Padova, Padova, Italy.

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