Publications by authors named "Akshay Machanahalli Balakrishna"

Cardiovascular disease continues to be the leading cause of morbidity and mortality in the United States. Despite advancements in medical care, there remain persistent racial, ethnic, and gender disparity in the diagnosis, treatment, and prognosis of individuals with cardiovascular disease. In this review we seek to discuss differences in pathophysiology, clinical course, and risk profiles in the management and outcomes of acute myocardial infarction and related high-risk states.

View Article and Find Full Text PDF

Coronary artery disease is the most common cause of heart failure, which is the leading cause of cardiovascular-related death worldwide. There are insufficient data to make strong recommendations for percutaneous coronary intervention (PCI) in patients with severe ischemic left ventricular systolic dysfunction (LVSD). In that context, we performed a meta-analysis to compare the outcomes of PCI with those of optimal medical therapy alone in patients with severe ischemic LVSD.

View Article and Find Full Text PDF
Article Synopsis
  • A study aimed to compare the effectiveness of catheter-directed thrombolysis (CDT) combined with systemic anticoagulation (SA) versus SA alone for managing intermediate-risk pulmonary embolism (PE).
  • The research analyzed 15 studies involving over 10,500 patients and found that the combination treatment (CDT + SA) led to significantly lower rates of in-hospital and long-term mortality compared to SA alone.
  • No significant difference in major or minor bleeding incidents was observed between the two treatment methods, suggesting that CDT + SA is safer while providing better survival outcomes.
View Article and Find Full Text PDF

Background: Transcatheter pulmonary valve implantation (TPVI) is an effective non-surgical treatment method for patients with right ventricle outflow tract dysfunction. The Medtronic Melody and the Edwards Sapien are the two valves approved for use in TPVI. Since TPVI patients are typically younger, even a modest annual incidence of infective endocarditis (IE) is significant.

View Article and Find Full Text PDF
Article Synopsis
  • Intracoronary imaging (ICI) improves stent implantation by assessing lesion characteristics and optimizing results during percutaneous coronary interventions (PCI) compared to traditional coronary angiography (CA).
  • A systematic review of 9 randomized controlled trials involving 5,879 patients revealed that ICI significantly reduced major adverse cardiovascular events and rates of repeat procedures compared to CA.
  • Overall, the findings suggest that using routine ICI during PCI leads to better patient outcomes, particularly in minimizing the need for further revascularization.
View Article and Find Full Text PDF

Sepsis is a multisystem disease process, which constitutes a significant public health challenge and is associated with high morbidity and mortality. Among other systems, sepsis is known to affect the cardiovascular system, which may manifest as myocardial injury, arrhythmias, refractory shock, and/or septic cardiomyopathy. Septic cardiomyopathy is defined as the reversible systolic and/or diastolic dysfunction of one or both ventricles.

View Article and Find Full Text PDF

Objectives: To evaluate sex differences in in-hospital mortality and 90-day readmission rates among patients undergoing transcatheter mitral valve replacement (TMVR) in the United States of America.

Background: Women have higher rates of mortality and rehospitalization than men following many cardiac procedures. TMVR has grown as an alternative to mitral valve surgery for patients at high surgical risk.

View Article and Find Full Text PDF

Femoral access is the gold standard for transcatheter aortic valve replacement (TAVR). Safe alternative access, that represents about 15 % of TAVR cases, remains important for patients without adequate transfemoral access. We aimed to perform a systematic review and -analysis of studies comparing transfemoral (TF) access versus transsubclavian or transaxillary (TSc/TAx) access in patients undergoing TAVR.

View Article and Find Full Text PDF

Background: The effect of prior coronary artery bypass graft (CABG) on the outcomes of transcatheter aortic valve replacement (TAVR) remains incompletely characterized. In this meta-analysis, we investigated the impact of prior CABG on TAVR outcomes.

Methods: A systematic search was conducted in PubMed, Google Scholar, and Cochrane databases from inception to 24 July 2022, using the search terms 'TAVR', 'CABG', 'peri-procedural complications', and 'mortality'.

View Article and Find Full Text PDF

Background: Readmission following Heart failure (HF) hospitalization is common: 25% are readmitted within a month of discharge and ≈50% within 6 months. A small proportion of these patients can have multiple readmissions within this period, adding disproportionately to the health care costs. In this study, we assessed the trends, predictors and costs associated with multiple readmissions using National readmissions database (NRD).

View Article and Find Full Text PDF

Pulmonary embolism (PE) can have a wide range of hemodynamic effects, from asymptomatic to a life-threatening medical emergency. Pulmonary embolism (PE) is associated with high mortality and requires careful risk stratification for individualized management. PE is divided into three risk categories: low risk, intermediate-risk, and high risk.

View Article and Find Full Text PDF

Chemotherapeutic regimens have cardiotoxic properties and thorax irradiation is associated with accelerated coronary artery disease (CAD). There is limited data regarding the influence of cancer on outcomes after percutaneous coronary intervention (PCI), as cancer patients were not routinely included in the PCI trials. We performed a systematic review and meta-analysis to compare the early outcomes of PCI between patients with active/historical cancer and patients without a cancer history.

View Article and Find Full Text PDF

The optimal therapy for submassive pulmonary embolism (sPE), defined by right ventricular dysfunction without hemodynamic instability, is uncertain. We conducted a systematic review and meta-analysis to compare the outcomes of catheter-directed thrombolysis (CDT) versus systemic anticoagulation (SA) alone in patients with sPE. We searched PubMed, EMBASE, Cochrane, ClinicalTrials.

View Article and Find Full Text PDF

Cardiac troponin (cTn) can also be elevated in patients with non-cardiac illnesses. The utility of elevated cTn in patients with acute gastrointestinal bleeding (AGIB) is unclear. We retrospectively identified all patients admitted with AGIB who had cTn ordered.

View Article and Find Full Text PDF

Cardiovascular complications contribute to approximately 40% of all COVID-19-related deaths. Thrombosis in COVID-19 infection is a well-known phenomenon, and the spectrum of thromboembolic diseases related to COVID-19 is wide, with venous thromboembolism being the most common manifestation. We describe a case of myocardial infarction with nonobstructive coronary arteries (MINOCA) that developed in the setting of mild COVID-19 infection.

View Article and Find Full Text PDF

Management of right atrial appendage (RAA) thrombus is a clinical dilemma. We describe a case of incidentally found RAA thrombus in a patient with a left atrial appendage closure device (WATCHMAN). Options for the management of RAA thrombus include observation, anticoagulation, thrombolytics, or surgical extraction.

View Article and Find Full Text PDF

Intravascular extension of lung adenocarcinoma is one of the four defined routes of metastasis to the heart but is rarely described in the literature. This is a rare case of primary lung adenocarcinoma with intravenous extension to the left atrium via the pulmonary vein. A 56-year-old female presented to the hospital with chest tightness and dyspnea.

View Article and Find Full Text PDF

Optical coherence tomography (OCT) and intravascular ultrasound (IVUS) optimize percutaneous coronary intervention (PCI) by characterizing lesion morphology, accurately measuring vessel dimensions, and optimizing stent characteristics. We sought to compare the utilization of OCT and IVUS to guide inpatient PCI and their relative association with in-hospital mortality and readmission rates. We queried the National Readmission Database to identify patients undergoing intracoronary imaging-guided PCI from 2010 to 2019 and compared outcomes and readmission rates between patients undergoing OCT-guided PCI and IVUS-guided PCI.

View Article and Find Full Text PDF

Objectives: To assess readmission rates in nonagenarians (age ≥ 90 years) with ST-elevation myocardial infarction (STEMI) following primary percutaneous coronary intervention (pPCI) versus no pPCI.

Background: There are limited data exploring readmissions following STEMI in nonagenarians undergoing pPCI versus no pPCI.

Methods: We retrospectively analyzed the Nationwide Readmissions Database to identify nonagenarians hospitalized with STEMI.

View Article and Find Full Text PDF

A 28-year-old woman with a history of systemic lupus erythematosus on hydroxychloroquine and steroid therapy presented with fever, dysentery, and thrombocytopenia. Marrow aspirate revealed yeast forms of histoplasmosis. She was treated with liposomal amphotericin B followed by itraconazole with resolution of symptoms and marrow recovery.

View Article and Find Full Text PDF

Objectives: There is a paucity of data on the management and outcomes of chronic viral hepatitis (CVH) patients [including chronic hepatitis B (CHB) and chronic hepatitis C (CHC)] presenting with acute myocardial infarction (AMI).

Methods: We utilized the National Inpatient Sample database (2001-2019) and studied the management and outcomes of CVH patients with AMI and stratified them by subtypes of CVH. The adjusted odds ratio (aOR) of adverse outcomes in CVH groups were compared to no-CVH groups using multivariable logistic regression.

View Article and Find Full Text PDF

Background: While aortic valve replacement (AVR) is indicated for symptomatic severe aortic stenosis (AS), the appropriate management of asymptomatic severe AS remains unclear. We conducted an updated meta-analysis to compare the outcomes of surgical AVR (SAVR) versus conservative treatment in patients with asymptomatic severe AS.

Methods: We searched PubMed, EMBASE, Cochrane, clinicaltrials.

View Article and Find Full Text PDF