Publications by authors named "Sergey Yalonetsky"

Jatrogenic communication between left ventricle and right atrium, known as Gerbode type ventricular septal defect (GVSD) may be observed after different surgical interventions. We present a case of iatrogenic GVSD following complex cardiac surgery including septal myectomy combined with mitral and aortic valve replacement, which was successfully closed percutanously by Occlutech septal occluder.

View Article and Find Full Text PDF

Human mitochondrial RNase P (mt-RNase P) is responsible for 5' end processing of mitochondrial precursor tRNAs, a vital step in mitochondrial RNA maturation, and is comprised of three protein subunits: TRMT10C, SDR5C1 (HSD10), and PRORP. Pathogenic variants in TRMT10C and SDR5C1 are associated with distinct recessive or x-linked infantile onset disorders, resulting from defects in mitochondrial RNA processing. We report four unrelated families with multisystem disease associated with bi-allelic variants in PRORP, the metallonuclease subunit of mt-RNase P.

View Article and Find Full Text PDF

The transradial approach has become the preferred route for performing coronary angiography and interventions. Several studies reported that radial access is associated with significant reduction in vascular complications compared with the femoral access. This technique allows also early ambulation, improves the patient's well-being, and is less expensive.

View Article and Find Full Text PDF

Background And Purpose: Ischemic stroke is a widespread disease carrying high morbidity and mortality. Transesophageal echocardiography (TEE) is considered an important tool in the work-up of patients with acute ischemic stroke (AIS) and transient ischemic attack (TIA) patients; its utility is limited by a semi-invasive nature. The purpose of this study was to evaluate the probability of treatment change due to TEE findings (yield) in the work-up of AIS and TIA patients.

View Article and Find Full Text PDF

Coronary artery perforation is a rare complication of percutaneous coronary intervention (PCI); its rate is estimated at 0.4- 0.7% of all PCIs.

View Article and Find Full Text PDF

Objectives: To assess the impact of different types of anemia and of concomitant non-cardiovascular chronic illnesses on outcomes of patients with ST-segment elevation myocardial infarction (STEMI) and baseline anemia admitted to the Intensive Cardiac Care Unit.

Methods: Based on the mean corpuscular volume, anemia was stratified into: microcytic (<80 fL), normocytic (≥80, <96 fL), and macrocytic (≥96 fL). Data on concomitant chronic non-cardiovascular illnesses including malignancies were carefully collected.

View Article and Find Full Text PDF

Background: Insulin promotes glucose consumption as the main cardiac energy source, while increasing myocardial efficiency. The short-term effects of insulin on cardiac function and its potential curative role in an acute diabetological cardiology setting remain unknown. Our study evaluated the role of acute insulin administration in the diabetic heart, its corresponding effective blood insulin level, and the time-course applicability of insulin treatment in a routine clinical setting.

View Article and Find Full Text PDF

Background: Anatomic variations of the left internal mammary artery (LIMA) can influence coronary artery bypass surgical technique as well as posing definite difficulties in the interpretation of angiographic findings. We present an unusual anatomic variant of two LIMAs originating from the left subclavian artery discovered post-coronary artery bypass grafting surgery.

Case Summary: A 60-year-old man post-LIMA grafting of the left anterior descending (LAD) coronary artery underwent diagnostic cardiac catheterization.

View Article and Find Full Text PDF

Background: The patent foramen ovale (PFO) occluder is a bulky metallic device. Its impact on the normal blood flow at the superior vena cava-right atrial (SVC-RA) junction is not clear.

Methods: We examined SVC-RA junction flow-pattern using pulsed-wave (PW) ultrasound Doppler in 21 patients (4 male, aged 52.

View Article and Find Full Text PDF

Unlabelled: Interventional cardiologists are increasingly exposed to radiation-induced hazards. The MAVIG shield is a lead-free drape and the RADPAD is a sterile, disposable, and lead-free shield, placed on the patient with the aim to minimize operator-received scatter radiation. The objective of the trial was to examine their efficacy in a real-world situation.

View Article and Find Full Text PDF

Aim: Significant tricuspid regurgitation (TR) is common in heart failure (HF) and portends poor prognosis. We sought to determine whether the poor outcome results from the TR itself, or whether the TR is a surrogate marker of advanced left-sided myocardial or valvular heart disease.

Methods And Results: We studied 639 patients admitted for acute HF.

View Article and Find Full Text PDF

Background: The clinical importance of right ventricular (RV) function in acute myocardial infarction is well recognized, but the impact of concomitant pulmonary hypertension (PH) has not been studied.

Methods And Results: We studied 1044 patients with acute myocardial infarction. Patients were classified into 4 groups according to the presence or absence of RV dysfunction and PH, defined as pulmonary artery systolic pressure >35 mm Hg: normal right ventricle without PH (n=509), normal right ventricle and PH (n=373), RV dysfunction without PH (n=64), and RV dysfunction and PH (n=98).

View Article and Find Full Text PDF

Background: Simultaneous rupture of the left and right ventricles is an extremely rare mechanical complication of acute myocardial infarction (MI). When associated with the formation of a false aneurysm, an extracardiac left-to-right shunt may occur.

Methods: We summarized all published data describing this unique condition.

View Article and Find Full Text PDF

Objectives: To determine the efficacy of a 0.5-mm lead apron across the patient's abdomen in addition to standard operator protection for the reduction of scatter radiation on operator and patient radiation exposure

Background: Cardiac angiography using the radial access compared to the femoral approach is associated with reduced complication rate and improved patient comfort but has significantly increased radiation dose. Improvements in radiation protection are needed

Methods: We randomly assigned 332 patients undergoing coronary angiography to a group with pelvic lead shielding and a group with standard protection.

View Article and Find Full Text PDF

Right ventricular (RV) infarction is associated with increased mortality. Functional mitral regurgitation (FMR) may complicate inferoposterior infarction with RV involvement leading to pulmonary hypertension and increased RV afterload, potentially exacerbating RV remodeling and dysfunction. We studied 179 patients with inferior wall left ventricular (LV) ST-elevation myocardial infarction and RV infarction.

View Article and Find Full Text PDF

Coronary artery anomalies may increase the risk of sudden death. Despite awareness of this association with certain congenital heart anomalies such as tetralogy of Fallot and transposition of the great arteries, it is thought to be an infrequent finding in cases of isolated patent ductus arteriosus (PDA). The authors report their experience with coronary anomalies in PDA patients.

View Article and Find Full Text PDF

Objectives: The purpose of this study was to determine the prevalence, clinical characteristics, and management of coronary chronic total occlusions (CTOs) in current practice.

Background: There is little evidence in contemporary literature concerning the prevalence, clinical characteristics, and treatment decisions regarding patients who have coronary CTOs identified during coronary angiography.

Methods: Consecutive patients undergoing nonurgent coronary angiography with CTO were prospectively identified at 3 Canadian sites from April 2008 to July 2009.

View Article and Find Full Text PDF

Background: The utility of cardiac magnetic resonance imaging (CMR) for assessment of adults with Ebstein anomaly is not well-defined. We sought to evaluate CMR characteristics in this population and to relate these to exercise parameters.

Methods: We analyzed CMR studies in adults with unrepaired Ebstein anomaly for measures of severity of Ebstein disease, including atrialized, functional and total right ventricular (RV) volumes, ejection fraction (EF) and severity index (area of atrialized RV+right atrium/functional RV+left ventricle+left atrium).

View Article and Find Full Text PDF

Background: There are now more adults with congenital heart disease than children. This aging cohort is at risk for acquired heart diseases such as coronary artery disease (CAD). The purpose of the study was to examine the clinical features of the CAD in adults with congenital heart disease.

View Article and Find Full Text PDF

No published studies have evaluated the role of cardiac magnetic resonance (CMR) imaging for the assessment of Ebstein anomaly. Our objective was to evaluate the right heart characteristics in adults with unrepaired Ebstein anomaly using contemporary CMR imaging techniques. Consecutive patients with unrepaired Ebstein anomaly and complete CMR studies from 2004 to 2009 were identified (n = 32).

View Article and Find Full Text PDF

Objective: The secundum type of atrial septal defect (ASD) is a common congenital cardiac anomaly. Transcatheter closure of the defect is the preferable therapeutic approach to avoid potential future complications. This work extends the data collected so far regarding the electrocardiographic, morphologic, hemodynamic, and mechanical changes following the procedure.

View Article and Find Full Text PDF

To characterize quality of life and psychological well-being in the new growing population of older patients who underwent trans-catheter closure of the secundum ASD. Twenty-seven patients, aged 60 years and older, who underwent trans-catheter ASD closure and 27 age and gender matched controls answered the hospital anxiety and depression scale and the cardiac-specific module of the health-related quality of life (HRQoL) questionnaire. Pre- and post-ASD closure pulmonary artery pressure (Pap), and the New York Heart Association (NYHA) functional capacity class were recorded from medical records.

View Article and Find Full Text PDF