Publications by authors named "Mannam Gopichand"

Purpose: The del Nido cardioplegia (DC) has been extensively used in congenital heart surgery for over two decades and is becoming popular in adult cardiac surgery. We evaluated the efficacy and safety of DC, compared to conventional blood cardioplegia (BC), in adult patients undergoing isolated coronary artery bypass grafting (CABG).

Methods: This metachronous study included a total of 2330 consecutive patients who underwent isolated CABG.

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Background: There are limited studies reporting follow-up outcome data comparing of off-pump coronary artery bypass (OPCAB) with on-pump (ONCAB) technique. The aim of the study was to report the 5-year clinical outcomes of OPCAB and ONCAB in a post hoc analysis of the PROMOTE patency trial.

Methods: From March 2016 through March 2017, a total of 321 patients undergoing coronary artery bypass grafting (CABG) were randomised to either the off-pump or the on-pump technique.

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Purpose: Coronary artery bypass grafting (CABG) is the most common cardiac surgical procedure performed in India. There are fundamental differences between males and females in the incidence and responses of the body to various diseases. These differences are noticeable, more so in conditions relating to cardiovascular health, particularly coronary artery disease (CAD).

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Dual left anterior descending artery (LAD) is not an uncommon coronary artery anomaly. Preoperative identification of this anomaly in patients with coronary artery disease is important to develop strategies to ensure complete revascularization of the LAD territory. From April 1996 through February 2022, more than 16,500 patients underwent isolated coronary artery bypass surgery (CABG) by our team.

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Drug-eluting stents (DES) have been introduced to counter the in-stent restenosis associated with bare metal stents. However, the mechanism of action of DES results in a counter-productive effect of coronary artery aneurysm (CAA) formation. Although CAA after the implantation of drug-eluting stents (DES) is a rare occurrence with an incidence rate of up to 0.

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Article Synopsis
  • This study analyzed 492 patients with total anomalous pulmonary venous connection (TAPVC) who underwent surgery between 2009 and 2019, focusing on mortality, morbidity, and outcomes.
  • The results showed that 61.38% of patients were healthy at follow-up, while a significant number experienced postoperative mortality and complications; factors such as age under 1 month, low weight, obstructed TAPVC, and acute kidney injury were linked to higher mortality rates.
  • The study suggests that, despite improved surgical outcomes, ongoing monitoring is crucial to address complications, particularly from pulmonary venous obstruction, and highlights the need for further research on risk factors.
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  • The study examines the trends and outcomes of redo coronary artery bypass grafting (CABG) over two periods: 1998-2004 and 2005-2021, to see how patient demographics and surgical techniques have changed over time.
  • Key findings indicate a significant increase in off-pump procedures and an older patient demographic in the more recent period, with more patients presenting with hypertension.
  • Despite these shifts, the overall outcomes for patients undergoing redo CABG have remained comparable to those in earlier years, even though patients today often have more health complications.
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Purpose: Earlier we reported 3-month graft patency and clinical outcomes of prospective randomized comparison of off-pump and on-pump multivessel coronary artery bypass surgery to evaluate outcomes and graft patency (PROMOTE patency) trial. We now report major adverse cardiac and cerebrovascular events (MACCE) at 1 year of patients who underwent coronary artery bypass grafting (CABG) using either off-pump technique or on-pump technique.

Methods: The PROMOTE patency trial is a two-arm, prospective, randomized, multicentre trial, and enrolled 320 patients with multivessel coronary artery disease from March 2016 through March 2017 at 6 centres and were randomly assigned to undergo either off-pump CABG (OPCAB) ( = 158 patients) or on-pump CABG ( = 162 patients).

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Purpose: Coronary artery bypass grafting (CABG) is performed either with the aid of cardiopulmonary bypass (on-pump) or without cardiopulmonary bypass (off-pump). There is a scarcity of angiographic data to support the non-inferiority of off-pump technique to on-pump technique. The objective of this study is to ascertain the non-inferiority of off-pump CABG when compared to on-pump CABG in terms of angiographically assessed graft patency at 3 months.

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  • The study investigates the incidence of stage I acute kidney injury (AKI) in patients with occult renal disease (ORD) undergoing either off-pump or on-pump coronary artery bypass grafting (CABG).
  • A total of 120 patients were randomly assigned to receive either off-pump (62 patients) or on-pump (58 patients) surgery, with outcomes measured including GFR and serum creatinine levels before and after the procedure.
  • Results showed no significant differences in stage I AKI rates between the groups, but the off-pump group had a higher incidence of stage III AKI requiring renal replacement therapy, suggesting potential risks associated with off-pump procedures.
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Background: Indian patients undergoing surgical aortic valve replacement (SAVR) differ from western populations with respect to aortic annulus size and valve disease morphology. The purpose of this post-market, non-randomized observational study was to evaluate the early hemodynamic performance of the Trifecta™ bioprosthesis (Abbott, previously St. Jude Medical, Minneapolis, US) in an Indian patient population.

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Cardiomyopathy is an important cause of morbidity and mortality in patients with Duchenne muscular dystrophy (DMD). Early recognition of myocardial involvement and initiation of therapy are important for improved outcomes. Cardiac magnetic resonance imaging (CMR) is a sensitive tool in early detection of myocardial fibrosis in these children.

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Background: Glycemic control in hospital intensive care units (ICU) has been the subject of numerous research publications and debate over the past 2 decades. There have been multiple studies showing the benefit of ICU glucose control in reducing both morbidity and mortality. GlySure Ltd has developed a glucose monitor based on a diboronic acid receptor that can continuously measure plasma glucose concentrations directly in a patient's vascular system.

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The left internal thoracic artery has become the conduit of choice for coronary artery bypass grafting, due to its superior patency rates at 10 or more years with little or no evidence of atherosclerotic changes. Recent evidence indicates that a second internal thoracic artery graft provides improved results relative to overall survival and major cardiac and cerebrovascular event-free survival, and reduces the need for repeat revascularization. However, the routine use of bilateral internal thoracic arteries is limited due to a perceived higher incidence of deep sternal wound infection.

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Objective: We compared sternal wound infections between diabetic patients undergoing off-pump coronary artery bypass surgery using bilateral internal thoracic artery grafting or single internal thoracic artery grafting and nondiabetic patients receiving bilateral internal thoracic artery or single internal thoracic artery grafting using a modified pedicled harvest technique of internal thoracic artery.

Methods: This retrospective study was conducted to analyze the data from 3072 patients who underwent primary coronary artery bypass surgery using an off-pump technique from August 2004 to October 2010. Of the 1211 diabetic patients, 181 received bilateral internal thoracic artery grafts (group 1) and 1030 received single internal thoracic artery grafts (group 2).

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Background: This study assessed whether preoperative renal insufficiency predisposes patients undergoing off-pump coronary artery revascularization to postoperative dialysis.

Methods: From August 2004 through June 2009, 2,275 patients undergoing off-pump coronary artery bypass were categorized into five groups (stages) by glomerular filtration rate (GFR). Of these, 1,855 patients had renal insufficiency: stage 2: 1,406; stage 3: 428; stage 4: 21, and 414 had normal renal function, stage 1.

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Mitral regurgitation is a frequent complication of ischemic heart disease. A retrospective study was performed on 127 patients with significant ischemic mitral regurgitation (regurgitant jet area > or =6.0 cm2 and/or vena contracta width > or =0.

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Experience of on- and off-pump coronary artery bypass in 379 patients with significant left main coronary artery stenosis was retrospectively reviewed. Beating-heart operations were performed on 219 patients between January 2001 and October 2007. Their results were compared with 160 who underwent revascularization under cardiopulmonary bypass during the same period.

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A 2-year-old boy with cyanosis was found to have normal situs and looping with anomalous drainage of a right-sided superior vena cava to the left atrium, and intact interatrial septum in association with anomalous drainage of the left pulmonary veins to the right superior vena cava. He underwent successful surgical repair of this rare congenital malformation.

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Objective: Preoperative renal insufficiency is a predictor of acute renal failure in patients undergoing coronary artery revascularization with cardiopulmonary bypass. Off-pump coronary artery bypass grafting has been shown to be less deleterious than on-pump bypass in patients with normal renal function, but the effect of this technique in patients with non-dialysis dependent renal insufficiency in a randomized study is unknown.

Methods: From August 2004 through October 2005, 116 consecutive patients with preoperative non-dialysis-dependent renal insufficiency (glomerular filtration rate measured using the Modification of Diet in Renal Disease equation [MDRD GFR] < or = 60 mL x min(-1) x 1.

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Background: The initial use of radial artery (RA) for myocardial revascularization was abandoned due to high incidence of early occlusion. The revival of radial artery graft use was attributable to the improved harvesting techniques as well as the introduction of antispasm prophylaxis by calcium channel blockers. Various techniques of harvesting RA have been described and extrafascial harvest is one of the techniques to minimize trauma during harvest.

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The use of the radial artery (RA) as a coronary artery bypass graft has assumed a revival and thus a multitude of issues have arisen surrounding the routine and widespread use of this conduit in myocardial revascularization. There has been no uniformity regarding harvest techniques, assessment of the adequacy of hand collateral circulation, antispasm protocols, selection of target vessels, and the site of proximal anastomosis. It is widely believed and practiced that the RA should be harvested as a pedicle graft and preferably be used to bypass critically stenosed (>70% stenosis) coronary arteries.

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Background: The use of two internal mammary artery grafts in coronary artery bypass grafting has been associated with decreased risks of death, reoperation, and angioplasty. However, bilateral internal mammary artery takedown is associated with higher incidence of sternal wound infection, particularly in people with diabetes and in elderly and obese patients. This study was conducted to explore the feasibility of using right internal mammary artery (RIMA) and radial artery (RA) as a composite graft while preserving the distal two thirds of the RIMA to leave the sternal blood supply intact.

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