Electrogram-guided Bachmann bundle area pacing to correct interatrial block: Initial experience, safety, and feasibility.

Background: A lack of standard Bachmann bundle (BB) capture criteria has affected the clinical impact of Bachmann bundle area pacing (BBAP) in patients with interatrial block (IAB).

Objective: The purpose of this study was to evaluate the feasibility and safety of electrogram-guided Bachmann bundle pacing (BBP) using sheath assisted, stylet-driven atrial lead implantation.

Methods: Patients with baseline IAB undergoing dual-chamber pacemaker or implantable cardioverter-defibrillator implantation were enrolled in a single-center prospective study.

Pacing mode survival in patients with single chamber atrial pacemaker for sinus node dysfunction.

Background: Single chamber atrial pacemaker should be sufficient for patients with sinus node dysfunction (SND) with normal atrioventricular (AV) conduction. However, most patients undergo dual chamber pacemaker implantation because of concern of new onset AV block. The annual incidence of new AV block has been reported from 0.

Comparison of electrocardiographic parameters between left bundle optimized cardiac resynchronization therapy (LOT-CRT) and left bundle branch pacing-cardiac resynchronization therapy (LBBP-CRT).

Background: In patients undergoing cardiac resynchronization therapy using left bundle branch area pacing (LBBP-CRT), the addition of a coronary sinus lead, that is, Left bundle optimized CRT (LOT-CRT) might confer additional benefits.

Objectives: To compare the electrocardiographic characteristics between LBBP-CRT and LOT-CRT MATERIALS AND METHODS: Patients with non-ischemic cardiomyopathy (NICMP) and left bundle branch block (LBBB) with left ventricular ejection fraction <35% who underwent implantation of an atrial lead, a left bundle lead, and a coronary sinus lead were included in this prospective study. Digital 12-lead electrocardiograms were recorded in three pacing modes-AAI, DDD with pacing from the LBB lead (LBBP-CRT), and DDD with pacing from both left bundle and coronary sinus leads (LOT-CRT).

Novel markers of COVID-19 mortality-A comparative study with patients of acute coronary syndrome.

Background: COVID-19 can cause severe pneumonia that can progress to multiple organ failure. It is believed that dysregulation of inflammation and cytokine storm, contributes to severe COVID-19. As inflammatory mediators play an important role in the pathogenesis of the severe disease, inflammatory markers like fever, leucocytosis, and C-reactive protein are known to predict severe disease.

Successful Endovascular Rescue Using the Brockenbrough Needle Following Inadvertent Stent-Graft Deployment in the False Lumen.

Inadvertent deployment of stent grafts into the false lumen during thoracic endovascular aortic repair (TEVAR) is rare and is associated with catastrophic consequences. We present a case of accidental stent-graft deployment from the true lumen into the false lumen during TEVAR, resulting in hemodynamic collapse and visceral malperfusion. We successfully performed a bailout using the Brockenbrough needle to create new access from the true lumen to the false lumen and implanted another overlapping stent graft.

Early dose of Adenosine, postRadiofrequency abLation of accessory pathwaY in determining acute procedural success (EARLY study).

Introduction: Post ablation of the accessory pathway (AP), the patient is observed in the catheterization laboratory for a variable period for resumption of pathway conduction. Aim of the study was to determine whether the administration of intravenous adenosine at 10 min after ablation of AP would have the same diagnostic accuracy as waiting for 30 min in predicting the resumption of AP conduction.

Methods: This was a prospective interventional study conducted in two centers.

Para-Hisian pacing: The eyes see what the mind knows.

A young male presented with pre-excited atrial fibrillation. During an electrophysiology study, preexcitation suggestive of a pathway in posteroseptal location was confirmed but no tachycardia was inducible. Para-Hisian pacing was done during sinus rhythm.

Restrictive physiology masked by cardiac tamponade: A rare cooccurrence in a child with lymphoblastic T-cell lymphoma.

Cardiac involvement in T-cell lymphoma is not uncommon. Pericardial effusion is the most common manifestation of cardiac involvement with restrictive cardiomyopathy (RCM) due to tumor infiltration being extremely rare. The presence of paroxysmal nocturnal dyspnea and orthopnea in a patient presenting with pericardial effusion could be related to tamponade or underlying myocardial disease.

Longitudinal Stent Deformation in Undeployed Stents: A Case Series.

Longitudinal stent deformation (LSD) is a recently reported problem with newer generation stents. The modification of stent materials and designs to make them more deliverable and conformable, as well as a focused approach in retaining their radial strength, has compromised longitudinal strength in currently available stents. Additionally, enhanced stent radiopacity, improved fluoroscopy, and heightened awareness have led to an increased incidence rate of the potentially under-recognized problem of LSD.

Multilobulated Sinus of Valsalva Aneurysm Dissecting into the Interventricular Septum (DAIS) and Rupturing into Left Ventricle: A Case Report.

Background: Dissecting aneurysm of sinus of Valsalva (SOV) into the interventricular septum is a rare entity. Multilobulated form of dissection rupturing into the left ventricle (LV) has never been reported in the literature.

Case Summary: A 52-year-old male presented with dyspnoea and palpitation with wide pulse pressure and peripheral signs of distal run-off and a continuous murmur along the left parasternal area.

Left main revascularization with optical coherence tomography in a young male with newly diagnosed homozygous familial hypercholesterolemia.

Familial hypercholesterolemia is the most common primary lipid disorder responsible for coronary artery disease. A 22-year-old male presented with history of accelerating angina and extensive xanthomatous lesions all over the body. Coronary angiography showed significant left main and left anterior descending artery disease.

One-year outcomes of novel BioMime Morph tapered stent in long and multiple coronary artery lesions.

Objective: Even with the immense progress achieved in the field of percutaneous coronary interventions (PCIs), treatment of diffuse long atherosclerotic coronary artery disease continues to remain a challenge for durable outcomes. The downstream reduction in diameter along the lesion length of a coronary artery may compel the cardiologist to use either 2 overlapping stents of different diameters or a single long stent leading to stent-vessel mismatch at the edges. Recently, Meril Life Sciences Pvt.

Coumel's sign reversed: What is the mechanism?

A patient presented with documented narrow QRS tachycardia. During electrophysiological study, he has orthodromic reciprocating tachycardia with atrial activation consistent with left free wall accessory pathway. With induction of tachycardia, beats with LBBB morphology have shorter cycle length than those with narrow QRS.

Epidemiological and clinical profile, management and outcomes of young patients (≤40 years) with acute coronary syndrome: A single tertiary care center study.

Objective: To study the epidemiological and clinical profile, angiographic patterns, reasons for the delay in presentation, management, and outcomes of the acute coronary syndrome (ACS) in young patients (≤40yrs) presenting to a tertiary care hospital in North India.

Methods: We included a total of 182 patients aged ≤40 years and presenting with ACS to the cardiology critical care unit of our department from January 2018 to July 2019.

Results: The mean age of the study population was 35.

Epidemiological profile, management and outcomes of patients with acute coronary syndrome: Single centre experience from a tertiary care hospital in North India.

Background: Cardiovascular disease is the leading cause of death in India. Our aim is to study the clinical, epidemiological profile and in-hospital outcomes of patients presenting with acute coronary syndrome.

Methods: We did a prospective single center observational study of the 1203 patients presenting with ACS to a tertiary referral center in North India over a period of one year (July 2018-June 2019).

Correlation of Vitamin D Deficiency With Severity of Chronic Heart Failure as Assessed by Functional Class and N-Terminal Pro-Brain Natriuretic Peptide Levels.

Introduction Chronic heart failure (CHF) is a major cause of mortality and morbidity in spite of tremendous advances in medical therapies. Vitamin D deficiency has been increasingly recognised in heart failure and its therapeutic as well as prognostic implications are debated. This study was carried out to examine the relationship of Vitamin D levels with severity of heart failure as assessed by NYHA functional class and serum N-terminal pro-brain natriuretic peptide (NT-pro-BNP) levels in vitamin D deficient patients with CHF.

Submitral aneurysm of varied aetiologies: a case series.

Background: Submitral aneurysm is a rare disease initially described in the African population. It is usually considered congenital in origin, due to a defect in the posterior portion of the mitral annulus. However, it can be seen in other diseases like ischaemic heart disease, rheumatic heart disease, infective endocarditis, tuberculosis, and syphilis.

Intravascular ultrasound-supported percutaneous angioplasty of post-kidney transplant renal artery bifurcation stenosis.

Background: Transplant renal artery stenosis (TRAS) is an uncommon complication following renal transplantation. Its usual clinical presentation includes worsening hypertension and/or renal function, without any evidence of graft rejection. Bifurcation renal artery stenosis of the transplanted renal artery is rarely encountered.

Prognostic role of procalcitonin in ST-elevation myocardial infarction complicated by cardiogenic shock.

Objective: Cardiogenic shock accounts for the majority of deaths amongst patients with ST-elevation myocardial infarction. Procalcitonin is elevated in acute myocardial infarction, especially when complicated by left heart failure, cardiogenic shock, resuscitated cardiac arrest, and bacterial infections. However, the prognostic utility of procalcitonin in ST-elevation myocardial infarction complicated by cardiogenic shock has not been systematically evaluated.

Refractory axillary venous spasm during permanent pacemaker implantation.

Background: Vascular spasm is well known to occur in the arterial system. Central venous spasm during pacemaker implantation is uncommon with only a few cases reported from time to time. Sometimes, the venous spasms may not respond to nitroglycerine injections which requires a change of access site and undue discomfort for the patient.