Publications by authors named "Nilda Espinola-Zavaleta"

126 Publications

Transillumination Rendering of a Prosthetic Mitral Valve Endocarditis.

CJC Open 2021 Apr 7;3(4):555-556. Epub 2020 Dec 7.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chávez, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cjco.2020.12.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8129476PMC
April 2021

Is mechanical dispersion superior to global longitudinal strain in the assessment of patients with systemic lupus erythematosus?

Int J Cardiovasc Imaging 2021 May 20. Epub 2021 May 20.

Nuclear Cardiology Department, National Institute of Cardiology Ignacio Chavez, Juan Badiano Nº 1, Colonia Seccion XVI, Tlalpan, 14030, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10554-021-02266-4DOI Listing
May 2021

N-Ammonia myocardial blood flow quantitation in patient with aneurismal coronary artery disease.

J Nucl Cardiol 2021 May 6. Epub 2021 May 6.

Nuclear Cardiology Department, National Institute of Cardiology Ignacio Chavez, Juan Badiano Nº 1, Colonia Seccion XVI, Tlalpan, P.C 14080, Mexico City, Mexico.

Aneurysmal coronary artery disease includes coronary artery aneurysms and ectasia; this condition has been associated with poor long-term outcomes. Few studies have explored myocardial blood flow N-ammonia PET/CT MPI added value. We present a 45-year-old man who came to the emergency department with chest pain. After a physical examination and laboratory studies, he was diagnosed with very high-risk unstable angina and referred to the catheterization laboratory. Coronary angiography showed the culprit lesion in the LCx and was treated by angioplasty and stent. LAD was found with coronary artery ectasia (TIMI 2 flow grade) and the RCA with aneurysmal disease in the proximal and middle segments (TIMI 3 flow grade). Medical treatment was decided for these findings and the patient was discharged. Two weeks later, we performed a N-ammonia PET/CT MPI founding apical, inferior, and inferoseptal severe ischemia, and reduced hyperemic coronary blood flow and coronary flow reserve in the RCA territory. Flow was normal in the LAD territory. Although coronary angiography remains the gold standard for evaluating these coronary abnormalities, it does not show the physiological compromise. Therefore N-ammonia PET/CT MPI should be performed as a complementary noninvasive imaging approach.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-021-02642-6DOI Listing
May 2021

Assessment of Atypical Cardiovascular Risk Factors Using Single Photon Emission Computed Tomography in Mexican Women.

Arch Med Res 2021 Apr 22. Epub 2021 Apr 22.

Nuclear Cardiology Department, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico; Department of Echocardiography, ABC Medical Center, I.A.P., Mexico City, Mexico. Electronic address:

Background: Ischemic heart disease (IHD) is a health care problem in women that increases morbimortality, particularly in developing countries. There is limited information regarding atypical risk factors associated with IHD in Mexican women.

Aim: To explore risk factors in women that could contribute to IHD and myocardial dysfunction using the single photon emission computed tomography (SPECT) myocardial perfusion study (MPS).

Methods: We designed a cross-sectional study in which we evaluated atypical and typical risk factors using a clinical questionnaire. We performed a SPECT-MPS to evaluate the presence of ischemia/infarction, decreased left ventricular ejection fraction, systolic dyssynchrony and diastolic function by peak filling rate and time to peak filling rate.

Results: 172 women were included, 64 with IHD. Adverse events during pregnancy (premature birth and miscarriage), rheumatoid arthritis, gynecological conditions (menopause and age of first menstruation) and low educational level, together with previously known typical risk factors were associated with infarction or ischemia and ventricular dysfunction. Potential associated factors for systolic dyssynchrony were rheumatoid arthritis (OR: 2.90, 95% CI: 0.95-8.66, p = 0.054) and history of premature birth (OR: 0.13, 95% CI: 0.01-0.66, p <0.01). Although those women with arterial hypertension and smoking shown an increased risk for dyssynchrony, these factors were not statistically significant. Low-educational level (OR 2.16, 95% CI 1.1-4.18, p = 0.019) was associated with decreased peak filling rate.

Conclusion: The presence of atypical risk factors in women could lead to decreased myocardial function, particularly in women at risk of developing IHD.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.arcmed.2021.03.009DOI Listing
April 2021

[Impact of 3D printing in surgical planning of congenital heart disease].

Arch Cardiol Mex 2021 ;91(1):1-6

Departamento de Cardiología Nuclear, Instituto Nacional de Cardiología Ignacio Chávez. Ciudad de México, México.

Introducción: Los defectos cardíacos congénitos constituyen el 30% de todas las anomalías congénitas. La prevalencia es de 8/1,000 recién nacidos vivos, sin predominio de género. Para una planificación quirúrgica óptima es esencial una evaluación precisa de la anatomía en los defectos cardíacos congénitos. Las modalidades de imagen como el ecocardiograma, la angiografía por cateterismo cardíaco, la tomografía computarizada (TC) o la resonancia magnética (RM) se utilizan de forma regular para el diagnóstico de las cardiopatías congénitas. Estos métodos pueden proporcionar reconstrucciones virtuales en reconstrucción volumétrica o 3D, pero no réplicas táctiles reales de la anatomía cardíaca.

Objetivo: Realizar modelos de corazón impresos en 3D con la finalidad de proporcionar réplicas táctiles 3D reales de la anatomía cardíaca para visualizar de forma detallada todas las perspectivas posibles de las estructuras extracardíacas o intracardíacas.

Métodos: Los datos de la imagen se obtuvieron en formato DICOM, se editaron en el paquete de software "3D slicer 4.3" y se exportaron para la impresión en formato de archivo (.stl).

Resultados Y Conclusiones: Con la impresión 3D se puede evaluar de forma detallada la anatomía intracardíaca y extracardíaca con modelos cardíacos en tiempo real. Esta técnica es de gran utilidad, sobre todo en los defectos cardíacos congénitos complejos, ya que permite hacer una planificación precisa del procedimiento quirúrgico.

Introduction: Congenital heart disease makes up for 30% of all congenital anomalies. The prevalence is 8/1,000 live newborns, without predominance of gender. Imaging methods such as echocardiography, angiography, computed tomography or magnetic resonance imaging must be routinely used in congenital heart disease. The mentioned methods can provide virtual reconstructions in volumetric reconstruction or in three dimensional (3D), but only 3D-printed heart models can provide real 3D tactile replicas of cardiac anatomy.

Objective: To make 3D printed heart models in order to provide real 3D tactile replicas of the cardiac anatomy that allow a detailed visualization from all possible perspectives, either of extracardiac or intracardiac structures.

Methods: This information is useful for surgical decision making, especially in patients with complex cardiac defects. DICOM, edited in a software package “3D slicer 4.3” and exported for printing in file format (.stl).

Results And Conclusions: With 3D printing, the intracardiac and extracardiac anatomy can be evaluated in detail with real-scale cardiac models of the patient, avoiding unexpected findings. This technique is very useful especially in complex congenital heart defects, since it allows precise planning of the surgical procedure.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.20000395DOI Listing
January 2021

Left ventricular and atrial global strain evaluation within subtypes of ventricular remodeling.

Echocardiography 2021 Feb 23;38(2):280-288. Epub 2021 Jan 23.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico.

Background: Left ventricular hypertrophy is associated with poor prognosis and adverse events. Left ventricular and left atrial global strain and left atrial reservoir strain (LV-GS; LA-GS; LA-RS) could be used as markers for myocardial function in different ventricular remodeling forms. This study aimed to evaluate LV-GS and LA-GS scores in different ventricular remodeling variants and identify risk factors for myocardial dysfunction.

Methods And Results: This cross-sectional study was divided into four groups of ventricular remodeling: normal geometry, eccentric hypertrophy (EH), concentric hypertrophy (CH), and concentric remodeling (CR). Strain analysis was obtained using standardized protocols. We included 121 subjects, 33 with previous myocardial infarction (MI). We found that EH had the lowest LV-GS and CH, the lowest LA-GS, and LA-RS. Atrial and ventricular dysfunction was present in 40 (33%) and 14 (11.5%) subjects, respectively. Smoking, male sex, and previous MI were associated with LV dysfunction and smoking and dyslipidemia with LA dysfunction; EH was closely associated with LV dysfunction and CH with LA dysfunction.

Conclusions: We conclude that different ventricular geometry types had echocardiographic profiles associated with different risk factors for dysfunction assessed by strain. The assessment of ventricular remodeling by global strain could be used as a complementary tool in the echocardiographic evaluation of ventricular and atrial function.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1111/echo.14981DOI Listing
February 2021

Cor triatriatum dexter associated to Ebstein anomaly with tricuspid double lesion and atrial septal defect.

Arch Cardiol Mex 2020 Dec 21. Epub 2020 Dec 21.

Department of Nuclear cardiology, National Institute of Cardiology Ignacio Chávez, Mexico City; Department of Echocardiography, ABC Medical Center, I.A.P, Mexico City, Mexico.

Female 23-year-old patient with heart murmur diagnosed in the first year of life. She attended to our institute with progressive dyspnea and palpitations of 7-month evolution. Physical examination showed perioral and distal cyanosis with digital clubbing, oxygensaturation of 79%, jugular plethora, arrhythmic heartsounds of upper limbs, fixed second heart sound, systolic tricuspid murmur, and edema. Electrocardiogramand 24 hour Holter monitoring showed atrial fibrillationand right bundle branch block.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.200003671DOI Listing
December 2020

Catastrophic antiphospholipid syndrome associated with systemic lupus erythematosus: a case-based review.

Future Cardiol 2020 Nov 3. Epub 2020 Nov 3.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico.

Antiphospholipid syndrome (APS) can occur as a primary disease or secondary to an underlying disease, such as systemic lupus erythematosus, or other systemic autoimmune diseases. Catastrophic APS refers to a rapid progression of the disease with the development of thrombotic events that affect three or more organs. This is the case of a 22-year-old woman without history of pregnancy. She developed a catastrophic APS associated with systemic lupus erythematosus, with kidney damage (focal lupus nephritis III), pulmonary embolism, and Libman-Sacks mitral valve endocarditis. Accurate diagnosis and optimal medical treatment (anticoagulants, corticosteroids, antimalarials, diuretics) improved her disease, and the patient was discharged in good clinical condition and continues her multidisciplinary follow-up in the outpatient clinic of our institution.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.2217/fca-2020-0145DOI Listing
November 2020

[A septal rupture of atypical location after myocardial infarction. A clinical case].

Arch Cardiol Mex 2020 09;91(1):130-134

Departamento de Cardiología Nuclear. Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, México.

Paciente masculino de 46 años de edad con antecedentes personales de hipertensión arterial sistémica, tabaquismo y etilismo y heredofamiliares de hipertensión arterial sistémica. El padecimiento inició con cuadro de astenia, adinamia, disnea progresiva, edema de miembros inferiores y aumento del volumen abdominal, por lo que acudió con el médico, quien decidió hospitalizarlo. El paciente recibió tratamiento médico con captopril, furosemida y espironolactona, sin mejoría de los síntomas, motivo por el cual se lo refirió a la institución de los autores. Al llegar al servicio de urgencias, el sujeto se encontraba estable.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.19000064DOI Listing
September 2020

Multiple embolic strokes in primary antiphospholipid syndrome.

Eur J Rheumatol 2020 Jul 21. Epub 2020 Jul 21.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.5152/eurjrheum.2020.20003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7574770PMC
July 2020

Optimal Medical Treatment vs. Invasive Approach in Patients with Significantly Obstructive Coronary Artery Disease and Ischemia.

Arch Med Res 2020 07 20;51(5):413-418. Epub 2020 Apr 20.

Departamento de Cardiología Nuclear, Instituto Nacional de Cardiología, Ciudad de México, México; Physiology Department, School of Medicine, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico. Electronic address:

Introduction: Stable ischemic heart disease (SIHD) is a condition that develops in subjects after myocardial infarction. Evidence suggests that optimal medical treatment (OMT) is not inferior to intervention (INT) using percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG).

Aim: To compare clinical outcomes in subjects with SIHD who only received OMT and those who received INT+OMT.

Methods: We retrospectively examined subjects with SIHD who underwent myocardial perfusion study-SPECT/CT in a reference center in Mexico. We assigned two branches: INT+OMT (subjects with previous PCI or CABG) and OMT (subjects with antiplatelet drugs, β-blockers, renin-angiotensin-system blockade, nitrates, calcium-channel blockers, and aggressive lipid-lowering therapy). Clinical outcomes at follow-up were angina relief, functional class improvement, hospitalization, myocardial reinfarction and death from any cause.

Results: We included 100 subjects; 51 with OMT and 49 with INT+OMT. 54 subjects had 1 affected vessel and 46 more than 2. INT+OMT group had up to 14 fold likelihood (95% CI: 3.38-63.35) of achieving angina relief and 2.2 fold likelihood (95% CI: 0.92-5.57, p = 0.077) for functional class improvement. No differences were found in hospitalization, myocardial infarction and death from any cause compared to OMT.

Conclusions: Subjects with OMT have no higher risk of adverse clinical outcomes compared to INT+OMT. However, the INT+OMT provides angina relief and functional class improvement compared to OMT.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.arcmed.2020.04.002DOI Listing
July 2020

Successful pregnancy in a patient with double outlet right ventricle.

Cardiol Young 2020 Apr 30;30(4):594-596. Epub 2020 Mar 30.

Department of Nuclear Cardiology, Instituto Nacional de Cardiologia Ignacio Chavez, Mexico City, Mexico.

Background: The double outlet right ventricle is uncommon and usually makes patients have haemodynamic and structural complications. Having a hyperdynamic state, such as pregnancy, with volume overload is very risky for a patient with complex CHD (CCHD). The diagnosis in early stages can prevent cardiac complications. The multi-disciplinary assessment of the disease lets patients make choices in treatment and reproductive life.

Objective: Present a case of a successful pregnancy in a patient with a rare CCHD.

Participant: A pregnant 19-year-old patient with a double outlet right ventricle without haemodynamic or structural complications and no fetal abnormalities.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1017/S1047951120000566DOI Listing
April 2020

Heart failure in isolated cor bifidus: the role of cardiac magnetic resonance.

Eur Heart J Cardiovasc Imaging 2020 07;21(7):822

Nuclear Cardiology Department, National Institute of Cardiology Ignacio Chavez, Mexico City 14080, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1093/ehjci/jeaa033DOI Listing
July 2020

Central blood pressure and vascular stiffness in Mexican population.

Arch Cardiol Mex 2020 ;90(1):21-27

Grupo de Estudio de Hipertensión y Mecánica Vascular, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, México.

Introduction: Central blood pressure (CBP) is considered a measure of prognostic value for cardiovascular risk. In turn, the aortic pulse wave velocity (PWVAo) and augmentation index (Aix) have been related to arterial stiffness and cardiovascular risk. Controversies exist regarding the reference values in different ethnic groups, ages, and anthropometrics. The objective of this study is to evaluate the CBP and arterial stiffness parameters in a Mexican population by age, gender, and anthropometry.

Methods: Between 2015 and 2016, 1009 apparently healthy subjects were recruited in the Instituto Nacional de Cardiología Ignacio Chávez. Using the Arteriograph (TensioMed) equipment with an oscillometric technique, CBP, central pulse pressure (cPP), PWVAo, and Aix were acquired. All results were automatically obtained by computer software version 3.0.0.4.

Results: Female sex was prevalent (72%), mean age was 47 ± 12 years; 26% had normal weight, 43% were overweight, and 30% had obesity. The reference values were higher than those reported in other populations. PWVAo and Aix were always found to be higher in females. A central-brachial pressure gradient was observed in < 40 years with lower CBP. Body mass index (BMI) presented a direct and positive correlation with CBP (p < 0.001); however, PWVAo and Aix were not modified.

Conclusion: CBP, cPP, PWVAo, and Aix parameters should be considered based on age, gender, and BMI. In Mexican population, CBP and cPP values were higher compared with other previously reported values, especially in women, the elderly, and obese. PWVAo and Aix are higher in older women; however, they are not modified by BMI.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.19000183DOI Listing
October 2020

Multiple fibroelastomas of the aortic valve with mitral caseous calcification: Case report and review of the literature.

Arch Cardiol Mex 2019 ;89(3):270-272

Nuclear Cardiology Department. Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACME.M19000056DOI Listing
July 2020

Light-chain cardiac amyloidosis: A multimodality approach.

J Nucl Cardiol 2020 12 13;27(6):2432-2435. Epub 2020 Jan 13.

Nuclear Cardiology Department, National Institute of Cardiology Ignacio Chavez, Juan Badiano N° 1, Colonia Sección XVI, Tlalpan, Mexico City, P.C 14080, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-019-02017-yDOI Listing
December 2020

Multimodal assessment of arrhythmogenic right ventricular cardiomyopathy.

J Nucl Cardiol 2020 10 2;27(5):1850-1854. Epub 2019 Dec 2.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano Nº 1, Colonia Sección XVI, Tlalpan, P.C. 14080, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-019-01944-0DOI Listing
October 2020

Multiple fibroblastomas of the aortic valve with mitral caseous calcification: case report and review of the literature.

Arch Cardiol Mex 2019 ;89(3):291-293

Departamento de Cardiología Nuclear, Instituto Nacional de Cardiología Ignacio Chávez. Ciudad de México, México.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.19000034DOI Listing
January 2019

Peripartum cardiomyopathy: what is the role of the magnetic resonance imaging?

Arch Cardiol Mex 2019 ;89(1):68-69

Department of Nuclear Cardiology. Instituto Nacional de Cardiología Ignacio Chávez. Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACME.M19000010DOI Listing
June 2020

Diastolic dyssynchrony assessment by gated myocardial perfusion-SPECT in subjects who underwent cardiac resynchronization therapy.

J Nucl Cardiol 2019 Aug 13. Epub 2019 Aug 13.

Nuclear Medicine and Diagnostic Imaging Section, International Atomic Energy Agency, Vienna, Austria.

Background: Left ventricular diastolic dyssynchrony (LVDD) can be assessed by gated myocardial perfusion single-photon emission computed tomography (GMP-SPECT). LVDD is an area of interest in subjects who underwent cardiac resynchronization therapy (CRT). The aim of this post hoc analysis was to assess the role of LVDD in subjects with CRT who were followed up at 6-month period.

Material & Methods: Left ventricular diastolic dyssynchrony was assessed by GMP-SPECT at baseline and after CRT procedure in 160 subjects from 10 different cardiological centers. CRT procedure was performed as per current guidelines. Outcomes were defined as improvement in ≥1 New York Heart Association (NYHA) class, left ventricular ejection fraction (LVEF) by 5%, and reduction in end-systolic volume (ESV) by 15% and 5% points in Minnesota Living with Heart Failure Questionnaire. LVDD was defined as diastolic phase standard deviation ≥40 ± 14°.

Results: Improvement in NYHA functional class occurred in 105 (65.6%), LVEF in 74 (46.3%), decrease in ESV in 86 (53.8%), and Minnesota score in 85 (53.1%) cases. Baseline LV diastolic standard deviation was 53.53° ± 20.85 and at follow-up 40.44° ± 26.1283; (P < 0.001). LVDD was not associated with improvement in clinical outcomes at follow-up.

Conclusion: CRT improves both systolic and diastolic dyssynchrony values at 6-month follow-up. LVDD at baseline is correlated with cardiac functionality at follow-up, but not with overall favorable clinical outcomes.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-019-01845-2DOI Listing
August 2019

Comorbid conditions in individuals assessed by SPECT: Study of a reference cardiology center in Mexico City.

J Nucl Cardiol 2019 10 16;26(5):1617-1624. Epub 2019 May 16.

Nuclear Cardiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Colonia Seccion XVI, Tlalpan, P. C. 14030, Mexico City, Mexico.

Background: There is an increasing prevalence of comorbidities in patients with ischemic heart disease (IHD) in developing countries. The aim of this work is to assess the prevalence of comorbidities and associated factors for IHD among patients at a reference cardiology center.

Design And Methods: This was a cross-sectional study. A complete clinical history which focused on the main comorbidities, previous myocardial infarction, and the main reason of referral was assessed. A single-photon emission computed tomography (SPECT) myocardial perfusion study (MPS) with two protocols was performed.

Results: We included 1998 patients, 64.2% male, median age 63 (I.R.: 56-71) years. 1514 (75.8%) subjects had at least one associated comorbidity. The main comorbidity was diabetes (T2D) (772: 38.6%), followed by systemic hypertension (737: 36.9%), smoking (518: 25.9%), and dyslipidemia (517: 25.9%). 806 (40.3%) had histories of previous myocardial infarctions. The main cause of referral was angina (923: 46.2%). We identified 1330 (66.5%) abnormal MPS. 460 (23%) had ischemia, 292 (14.6%) infarction, and 578 (28.9%) ischemia and infarction.

Conclusion: An increased prevalence of comorbidities was found in patients who were studied in the Nuclear Cardiology Department (NCD): most of them had traditional risk factors attributable to myocardial infarction. A great percentage were newly diagnosed with both ischemia and infarction.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-019-01737-5DOI Listing
October 2019

Natural history of complex transposition of great arteries in an adult: a case report.

Cardiol Young 2019 May 16;29(5):720-724. Epub 2019 May 16.

Department of Nuclear Cardiology,National Institute of Cardiology Ignacio Chavez,Mexico City,Mexico.

Background: Transposition of the great arteries is the most common cyanotic cardiac lesion in newborns. Transposition of the great arteries without surgical correction is fatal during the first year of life. Contemporary outcome studies have shown that survival rates after surgery are excellent and most patients live to adulthood.

Case Summary: Woman with complex transposition of the great arteries with atrial and ventricular septal defects and subvalvular and valvular pulmonary stenosis, who has survived until the age of 31 years without surgery. The diagnosis was made by echocardiography and cardiac magnetic resonance. She underwent successful corrective surgical treatment after this age, by means of a Jatene operation.

Conclusion: In transposition of the great arteries patients, a high index of cases dies in the first month of life. Our case represents a natural history of the complex transposition of the great arteries. Non-invasive imaging studies are very useful for the diagnosis and follow-up of patients with transposition of the great arteries, especially echocardiography and cardiac magnetic resonance. In our case, the multimodality approach and the corrective surgery allowed her to survive.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1017/S1047951119000805DOI Listing
May 2019

Peripartum cardiomyopathy: what is the role of the magnetic resonance imaging?

Arch Cardiol Mex 2019 ;89(1):74-75

Department of Nuclear Cardiology. Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.24875/ACM.M19000007DOI Listing
January 2019

Correction to: Left ventricular dyssynchrony and abnormalities in wall motion, assessed by gated-SPECT as ischemic auxiliary markers.

J Nucl Cardiol 2020 Aug;27(4):1380

Departament of Nuclear Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.

In Figure 3, sensitivity and specificity were interchanged. The corrected Figure 3 is shown below. The author names listed in reference 14 have been corrected; the correct reference reads: Nakanishi R, Gransar H, Slomka P, Arsanjani R, Shalev A, Otaki Y, et al. Predictors of high-risk coronary artery disease in subjects with normal SPECT myocardial perfusion imaging. J Nucl Cardiol 2016;23:530-41. The units of standard deviation (SD) and bandwidth (BW) in the abstract, results and in table 3 are expressed in degrees from 0 to 360°.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-019-01636-9DOI Listing
August 2020

Left ventricular dyssynchrony and abnormalities in wall motion, assessed by gated-SPECT as ischemic auxiliary markers.

J Nucl Cardiol 2020 12 4;27(6):2261-2268. Epub 2018 Dec 4.

Departament of Nuclear Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No 1, Colonia Sección XVI, Del. Tlalpan, 14080, Mexico City, Mexico.

Introduction: Left ventricular dyssynchrony (LVD) quantified by gated myocardial perfusion studies (MPS), through phase analysis (PA), has shown controversial results in myocardial stunning.

Objectives: Assessment of LVD and regional wall motion abnormalities (RWMA) in normal and ischemic patients.

Methods: A cohort of 172 patients were studied. Summed Stress Score (SSS), Summed Resting Score (SRS), and Summed Difference Score (SDS) were evaluated. Group 1-patients with normal MPS (N = 133) and Group 2-patients with myocardial ischemia in the MPS (N = 39). LVD was evaluated through PA and RWM by visual analysis.

Results: SSS 0 vs 9.8 ± 3.9 P = .0001; SDS 0 vs 9.8 ± 3.9 P = .0001; SRS 0 vs 0 P = NS, in G1 and G2. Significant differences were found in LVD between G1 and G2, bandwidth 36 ± 14 vs 63 ± 46 P = .0001; standard deviation 16 ± 10 vs 26 ± 15 P = .0001. In G1, 16% had LVD vs RWMA in 0%, P = .0001 and in G2, 59% with LVD vs 33% with RWMA, P = .03. Sensitivity for LVD 59% and for RWMA 33%, P = .03 and specificity for LVD 83% and for RWMA 100%, P = .0001.

Conclusion: Ischemic patients have LVD post-stress due to myocardial stunning. LVD measured by PA could be a useful tool to identify ischemia.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-018-01544-4DOI Listing
December 2020

Pulmonary embolism and megaloblastic anemia: is there a link? A case report an literature review.

Radiol Case Rep 2018 Dec 14;13(6):1212-1215. Epub 2018 Sep 14.

Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico.

Many factors have been associated with venous thromboembolism. Among them, vitamin B12 deficiency can produce elevated homocysteine levels, which is a risk factor for venous embolism, since the latter interferes with the activation of Va coagulation factor by activation of C protein. We present a case of a patient with metabolic syndrome with apparently unprovoked pulmonary embolism. After careful evaluation, megaloblastic anemia was detected. Even though the patient had biochemistry findings of hemolysis and blood smear did not showed fragmented erythrocytes, which is consistent with pseudo-microangiopathic hemolytic anemia.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.radcr.2018.07.018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6141725PMC
December 2018

Multimodality imaging of the anomalous origin of the right pulmonary artery from the ascending aorta in an adult (hemitruncus arteriosus).

J Cardiovasc Comput Tomogr 2020 Nov - Dec;14(6):e89-e92. Epub 2018 Sep 11.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano N° 1, Colonia Seccion XVI, Tlalpan, P.C. 14080, Mexico City, Mexico; Department of Echocardiography, ABC Medical Center I.A.P., Sur 136 No. 116, Colonia Las Americas, Alvaro Obregon, P.C. 01120, Mexico City, Mexico. Electronic address:

Anomalous origin of the pulmonary artery branches is a rare phenomenon. We describe a case of an adult with anomalous origin of the right pulmonary artery (hemitruncus arteriosus) associated with patent ductus arteriosus. Non-invasive imaging studies played an important role in the diagnosis and follow-up. Angiography allowed to determine the severity of pulmonary hypertension. He underwent surgical closure of patent ductus arteriosus, redirection of right pulmonary artery and atrioseptostomy with decrease of the pulmonary pressure in the follow-up. A high index of clinical suspicion of this entity is required in adults with heart failure, recurrent hemoptysis and pulmonary hypertension, because it could go unnoticed.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jcct.2018.09.002DOI Listing
January 2021

Systolic wall thickening and prone acquisition as tools to reduce false positives in the interpretation of the SPECT myocardial perfusion study.

J Nucl Cardiol 2019 Oct 27;26(5):1777-1779. Epub 2018 Aug 27.

Department of Nuclear Cardiology, Instituto Nacional de Cardiología Ignacio Chavez, Juan Badiano Nº 1, Colonia Sección XVI, Tlalpan, C.P. 14080, Mexico, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-018-1421-6DOI Listing
October 2019

Non-invasive assessment of endarteritis in Marfan syndrome with aortic dissection after surgical treatment.

J Nucl Cardiol 2019 Oct 9;26(5):1759-1760. Epub 2018 Aug 9.

Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano Nº 1, Colonia Seccion XVI, Tlalpan, 14080, Mexico, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-018-1370-0DOI Listing
October 2019

Multimodality assessment of ventricular pseudoaneurysm after non-reperfused acute myocardial infarction.

J Nucl Cardiol 2019 Aug 24;26(4):1368-1372. Epub 2018 Jul 24.

Department of Nuclear Cardiology, Instituto Nacional de Cardiología Ignacio Chavez, Juan Badiano No 1, Colonia Sección XVI, Tlalpan, C.P. 14080, Mexico City, Mexico.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12350-018-1355-zDOI Listing
August 2019