Publications by authors named "Avnish Tripathi"

Radial artery occlusion (RAO) is a major impediment to reintervention in patients who underwent proximal transradial access (p-TRA) for coronary catheterization. Distal transradial access (d-TRA) at the level of snuffbox distal to the radial artery bifurcation is a novel alternative to p-TRA. We conducted an updated meta-analysis of all available randomized controlled trials (RCTs) to compare the incidence of RAO between p-TRA and d-TRA, along with access site-related complications.

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Background: There is a paucity of real-world data on the in-hospital (IH) and post-discharge outcomes in patients undergoing lower extremity peripheral vascular intervention (PVI) with adjunctive atherectomy.

Aims: In this retrospective, registry-based study, we evaluated IH and post-discharge outcomes among patients undergoing PVI, treated with or without atherectomy, in the National Cardiovascular Data Registry PVI Registry.

Methods: The IH composite endpoint included procedural complications, bleeding or thrombosis.

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Patients who underwent transcatheter aortic valve implantation (TAVI) with concomitant atrial fibrillation (AF) are at a higher risk for thromboembolic and bleeding events. The optimal antithrombotic strategy for patients with AF after TAVI remains unclear. We sought to determine the comparative efficacy and safety of direct oral anticoagulants (DOAC) versus oral vitamin K antagonists (VKAs) in these patients.

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Background: In-hospital cardiac arrest during cardiac catheterization is not uncommon. The extent of variation in survival after cardiac arrest occurring in the cardiac catheterization laboratory (CCL) and underlying factors are not well known.

Objectives: The aim of this study was to identify the factors associated with higher survival rates after an index cardiac arrest in the CCL.

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In-hospital cardiac arrest resuscitation training often happens in silos, with minimal interprofessional training. The aim of this study was to implement and evaluate a simulation-enhanced, interprofessional cardiac arrest curriculum in a university hospital. The curriculum ran monthly for 12 months, training interprofessional teams of internal medicine residents, nurses, respiratory therapists, and pharmacy residents.

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Article Synopsis
  • Cell therapy aims to repair damaged tissues by transplanting human cells, but limited research has been conducted on its effectiveness for nonischemic cardiomyopathy (NICM).
  • A meta-analysis of 11 randomized clinical trials involving 574 participants showed that cell therapy significantly improved left ventricular ejection fraction (LVEF) and reduced left ventricular end-diastolic diameter (LVEDD), along with enhancing functional capacity, as indicated by increased walking distance.
  • Despite these positive outcomes, there were no significant differences in major adverse cardiac events or quality of life metrics, indicating a need for larger, well-designed studies to further evaluate the safety and efficacy of cell therapy in NICM patients.
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Background: Out of hospital cardiac arrests, especially those due to ventricular tachyarrhythmias, have higher incidence in the morning. It is unknown whether in-hospital cardiac arrests follow a similar pattern.

Aim Of The Study: The purpose of this study was to analyze the circadian variation of in-hospital cardiac arrest incidence.

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Acute myocardial infarction (AMI) during pregnancy is rare but fatal complication. Recent incidence of pregnancy related AMI and trends in the related outcomes are unknown. The Nationwide Inpatient Sample database was utilized from years 2005 to 2014.

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Background Black individuals have greater risk for cardiovascular disease ( CVD ) than whites. Identifying CVD risk factors associated with abnormal aortic hemodynamics in blacks may optimize CVD prevention and treatment strategies. Methods and Results Jackson Heart Study participants underwent applanation tonometry (2011-2016) with assessment of carotid-femoral pulse wave velocity ( CFPWV ) and forward wave amplitude ( FWA ).

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Endovascular aneurysm intervention (EVAI) is one of the most commonly performed vascular interventions for abdominal aortic aneurysm (AAA). Data regarding 30-day readmission rates after EVAI are poorly reported in the literature. We used the United States Nationwide Readmission Database from 2010 to 2014 to identify all patients ≥18 years who were readmitted within 30 days after a hospital discharge for EVAI of the AAA.

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Article Synopsis
  • * A comprehensive literature search identified six randomized controlled trials involving 1,582 patients, with a follow-up period of 18 to 60 months, to compare clinical outcomes like mortality and major cardiovascular events.
  • * The findings revealed no significant differences in all-cause mortality, cardiovascular mortality, and other major complications between DES and BMS, suggesting similar effectiveness for both types of stents in this context.
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Background Blacks have more severe endothelial dysfunction and aortic stiffening as compared with whites. We aimed to investigate the association between aortic stiffness and microvascular function in the black community. Methods and Results We assessed the association between forearm vascular reactive hyperemia (an indicator of microvascular function) and aortic stiffness in 1458 black participants (N=965 [66% women]; mean age: 66±11 years) in the Jackson Heart Study.

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Our current knowledge about comparative differences in 30-day readmissions and the impact of readmissions on overall costs after transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (SAVR) is largely derived from clinical trials. The objectives of this study were to compare readmissions and costs for TAVI and SAVR in a nationally representative population-based sample. The Healthcare Cost and Utilization Project's National Readmission Database was used for the study.

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Background: We investigated the treated prevalence of bicuspid aortic valve in a pediatric population with congenital heart disease and its incident complications.

Materials And Methods: A 15-year retrospective data set was analyzed. Selection criteria included age ≤17 years, enrollees in the South Carolina State Medicaid program and diagnosed as having bicuspid aortic valve on one or more service visits.

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Background: The association of short-term readmissions after percutaneous coronary intervention (PCI) on healthcare costs has not been well studied.

Methods And Results: The Healthcare Cost and Utilization Project National Readmission Database encompassing 722 US hospitals was used to identify index PCI cases in patients ≥18 years old. Hierarchical regression analyses were used to examine the factors associated with risk of 30-day readmission and higher cumulative costs.

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Aims: Total occlusion (TO) of the culprit artery usually presents with ST-elevation myocardial infarction. A subset of patients with TO present as non-ST segment elevation myocardial infarction (NSTEMI) without classic ST-elevation on the electrocardiogram. This may lead to delay in identification of these patients and further management.

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Background: SYNERGY, a bioabsorbable polymer-based, everolimus-eluting stent (BP-DES), recently received regulatory approval in the USA for use in percutaneous coronary interventions. Yet, information on the safety of BP-DES in routine clinical practice is limited. Our aim was to compare the safety of the recently approved BP-DES with current durable polymer drug-eluting stents (DP-DES) by analyzing adverse events, namely, stent thrombosis (ST), reported to the Manufacturer and User Facility Device Experience (MAUDE) database.

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Despite the increase in use of percutaneous coronary intervention (PCI) in left main coronary disease, its efficacy compared with coronary artery bypass grafting (CABG) is unclear. We performed a meta-analysis of randomized controlled trials to assess the optimal revascularization strategy. Our search yielded 8 studies reporting relevant outcomes that were pooled using the inverse variance method, and the hazard ratio (HR) was calculated.

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Peripheral vascular endothelial dysfunction assessed by digital peripheral arterial tonometry (PAT) has been associated with risk for adverse cardiovascular events. We examined the relations of peripheral microvascular dysfunction and left ventricular mass in a community-based cohort of African Americans. We examined participants of the Jackson Heart Study who had PAT and cardiac magnetic resonance imaging evaluations between 2007 and 2013.

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Introduction: Diabetic muscle infarction is a rare microangiopathic complication of poorly-controlled diabetes mellitus. Here we present the case of a female with a thirteen year history of poorly-controlled diabetes mellitus who presented with severe right leg pain and swelling and was eventually diagnosed with this condition.

Case Presentation: A 24-year-old female with a thirteen year history of poorly-controlled diabetes mellitus presented with intense right thigh pain and swelling.

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Rationale: The effect of stem/progenitor cells on myocardial perfusion and clinical outcomes in patients with refractory angina remains unclear because studies published to date have been small phase I-II trials.

Objective: We performed a meta-analysis of randomized controlled trials to evaluate the effect of cell-based therapy in patients with refractory angina who were ineligible for coronary revascularization.

Methods And Results: Several data sources were searched from inception to September 2015, which yielded 6 studies.

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Background: Effective medical and surgical management of pediatric congenital heart disease (CHD) to reduce long-term adverse neurodevelopmental outcomes is an important clinical objective in primary and specialty health care. We identify clinical predictors associated with an increased risk of 6 long-term neurodevelopmental outcomes in children with CHD compared to the general pediatric Medicaid population.

Method: South Carolina's retrospective, 15-year Medicaid data set (January 1, 1996-December 31, 2010) for 19,947 patients aged ≤ 17 years diagnosed with ≥ 1 CHD lesions (on the basis of International Classification of Diseases, Ninth Revision, Clinical Modification codes) were compared to 19,948 patients without CHD matched on age at entry into and duration in Medicaid using logistic and Cox proportional hazards regression.

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