Publications by authors named "Sreekanth Yerram"

Unruptured sinus of Valsalva aneurysm can present with manifestations due to local compression or protrusion into the chambers. Right ventricular inflow obstruction is a rare manifestation. This image highlights the tricuspid valve obstruction due to a Valsalva aneurysm in a patient after surgical aortic valve replacement.

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Hereditary hemorrhagic telangiectasia (HHT) is a genetic disorder in which there is faulty development of the arteries. There is a high incidence of pulmonary hypertension (PH) in these patients, the pathophysiology of which is not fully known. An increase in cardiac output, causing high-output cardiac failure, and increased pulmonary vascular resistance secondary to genetic mutations are the main reasons.

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Aim: Studies on the changes in the presentation and management of acute myocardial infarction (AMI) during the COVID-19 pandemic from low- and middle-income countries are limited. We sought to determine the changes in the number of admissions, management practices, and outcomes of AMI during the pandemic period in India.

Methods & Results: In this two-timepoint cross-sectional study involving 187 hospitals across India, patients admitted with AMI between 15th March to 15th June in 2020 were compared with those admitted during the corresponding period of 2019.

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Ascending aortic pseudoaneurysm is a known complication of previous cardiac surgery that needs surgical or endovascular intervention. The presence of arch branches complicates the later approach necessitating additional procedures, either hybrid surgical or endovascular modification of the grafts. We describe a patient who developed an ascending aortic pseudoaneurysm after mitral valve replacement, which recurred after surgical patch closure with the formation of a cutaneous fistula.

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Bradyarrhythmia requiring pacing is infrequently encountered in patients with complex cyanotic congenital heart disease. Even though epicardial pacing is the preferred mode, rarely, a need for endocardial lead implantation arises. Patients with cavopulmonary shunts limit access to the venous atria and ventricles, necessitating alternate methods of pacemaker implantation.

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An atrial septal defect is a rare anomaly in patients with interrupted inferior vena cava, which renders the percutaneous intervention more complex; and hence, innovative approaches should be sought. Dextrocardia further complicates the procedure, and traditional atrial septal device deployment methods cannot be employed. We report a successful percutaneous secundum atrial septal defect closure by a novel deployment strategy along with balloon dilation of associated severe valvular pulmonary stenosis in a patient with dextrocardia and interrupted inferior vena cava.

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Background: The objective is to assess whether the squaring of tricuspid regurgitation velocity (TRV) gives an improved estimate of pulmonary vascular resistance (PVR) or is equivalent to the ratio of TRV and time velocity integral of right ventricular outflow tract (TVI) (TRV/TVI) for assessing PVR in patients with high PVR values.

Methods: Thirty patients predicted to have PVR >6 WU by Doppler were included in the present study. TRV and TVI were measured by echo Doppler.

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Background: Different echocardiographic parameters have been studied and validated for assessing the severity of mitral stenosis; however, scant data are available for these markers in the context of balloon mitral valvuloplasty in juvenile age groups (ages ⩽20 years).

Objectives: The aim of the present study was to find out the utility of echocardiographic parameters such as mitral valve separation index, left atrial volume, right ventricular systolic pressure, tricuspid annular plane systolic excursion, tricuspid annular systolic velocity, and right ventricular Tei index in predicting success of balloon mitral valvuloplasty and their relation to mitral valve area in juvenile mitral stenosis.

Methods: We carried out a prospective single-centre study involving 52 juvenile mitral stenosis patients undergoing elective valvuloplasty.

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Background: Pace mapping is a useful tool but is of limited utility for the atrium because of poor spatial resolution. We investigated the use of bipolar electrograms recorded from widely spaced electrodes in order to improve the resolution of pace mapping.

Methods: This prospective study included patients undergoing a clinical electrophysiology study.

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