Simulation to determine the approach of transcatheter aortic valve implantation in patients undergoing hemodialysis.

Purpose: The present study investigated potential access vessels in patients receiving hemodialysis who underwent surgical aortic valve replacement and determined which approaches were most suitable for performing transcatheter aortic valve implantation.

Methods: Consecutive patients undergoing hemodialysis with aortic valve stenosis who underwent surgical aortic valve replacement were included. Preoperative computed tomography data were analyzed to assess the vessel diameter and calcification.

Serum and Adipose Dipeptidyl Peptidase 4 in Cardiovascular Surgery Patients: Influence of Dipeptidyl Peptidase 4 Inhibitors.

Dipeptidyl peptidase 4 (DPP-4) is a novel adipokine and may be involved in the association between adipose tissue and metabolic syndrome. We investigated DPP-4 and adiponectin levels in the serum, subcutaneous adipose tissue (SAT), and epicardial adipose tissue (EAT), and their relationship with preoperative factors, as well as comparing the DPP-4 levels in SAT and EAT with and without DPP-4 inhibitors. This study included 40 patients (25 men, age 67.

Mid-term results of surgical aortic valve replacement with bioprostheses in hemodialysis patients.

Background: Limited studies have assessed the factors affecting prognosis in hemodialysis (HD) patients who undergo surgical aortic valve replacement with a bioprostheses (SAVR-BP). This study aimed to evaluate the outcomes of HD patients who had undergone SAVR-BP for aortic stenosis (AS) and identify the risk factors for mortality.

Methods: This retrospective study included 57 HD patients who had undergone SAVR-BP for AS between July 2009 and December 2020.

Preoperative Serum GDF-15, Endothelin-1 Levels, and Intraoperative Factors as Short-Term Operative Risks for Patients Undergoing Cardiovascular Surgery.

Objectives: The Society of Thoracic Surgeons (STS) risk score is widely used for the risk assessment of cardiac surgery. Serum biomarkers such as growth differentiation factor-15 (GDF-15) and endothelin-1 (ET-1) are also used to evaluate risk. We investigated the relationships between preoperative serum GDF-15, ET-1 levels, and intraoperative factors and short-term operative risks including acute kidney injury (AKI) for patients undergoing cardiovascular surgery.

Lung-diffusing capacity for carbon monoxide predicts early complications after cardiac surgery.

Purpose: Preoperative pulmonary dysfunction has been associated with increased operative mortality and morbidity after cardiac surgery. This study aimed to determine whether values for the diffusing capacity of the lung for carbon monoxide (DL) could predict postoperative complications after cardiac surgery.

Methods: This study included 408 consecutive patients who underwent cardiac surgery between June 2008 and December 2015.

Association of serum concentrations of irisin and the adipokines adiponectin and leptin with epicardial fat in cardiovascular surgery patients.

Epicardial fat located adjacent to the heart and coronary arteries is associated with increased cardiovascular risk. Irisin is a myokine produced by skeletal muscle after physical exercise, and originally described as a molecule able to promote the browning of white adipose tissue and energy expenditure. In order to decrease cardiovascular risk, it has been proposed as a promising therapeutic target in obesity and type 2 diabetes.

Serum adiponectin and TNFα concentrations are closely associated with epicardial adipose tissue fatty acid profiles in patients undergoing cardiovascular surgery.

Background: Epicardial adipose tissue (EAT) releases both adiponectin and TNFα, and these two adipokines play important roles in heart diseases such as coronary arterial disease. The aim of the present study was to clarify whether fatty acid (FA) profiles in EAT are linked to the serum concentration of these adipokines. The relationships between serum adipokine levels and FA profiles in patients undergoing cardiovascular surgery were analyzed.

Severe hemolytic anemia caused by the NIPRO extracorporeal left ventricular assist device.

A 56-year-old woman with dilated cardiomyopathy underwent mitral and tricuspid annuloplasty, and simultaneous deployment of an extracorporeal left ventricular assist device (LVAD). Subsequently, she developed hemolytic anemia. Although the LVAD system was repeatedly exchanged and the mitral annular ring was removed, her hemolytic anemia did not improve.

Effects of continuous infusion of low-dose human atrial natriuretic peptide (hANP) on the lungs during cardiac surgery.

Objective: The objective of this study was to determine the effects of a continuous infusion of low-dose hANP on the lungs during cardiac surgery in patients under cardiopulmonary bypass (CPB).

Methods: We analyzed 30 consecutive cases of cardiac surgery performed at our hospital from 2007-2008. The patients were divided into a group that received hANP (hANP group) or a group that received saline and no hANP (N-hANP group).

[Stanford type a acute aortic dissection with pectus excavatum].

Pectus excavatum is generally an isolated abnormality of the chest wall. However, some patients have a concomitant pectus deformity and cardiac & aortic disease. Decisions must be made regarding the operative approach and whether the pectus excavatum should be corrected during the same session.

Greater expression of inflammatory cytokines, adrenomedullin, and natriuretic peptide receptor-C in epicardial adipose tissue in coronary artery disease.

Background: Growing evidence suggests that the epicardial adipose tissue may have local interactions with coronary arteries. In addition, vasoactive peptides such as adrenomedullin and natriuretic peptide has an interaction with adipose tissue. In this study, we investigated the relationship between adipokines, adipocytokines, and vasoactive peptides expressed in epicardial adipose tissue and subcutaneous adipose tissue in patients with and without coronary artery disease (CAD).

Off-pump quintuple coronary artery bypass grafting for situs inversus totalis.

Dextrocardia associated with situs inversus totalis is a rare condition. A 49-year-old man with dextrocardia and situs inversus totalis underwent off-pump quintuple coronary artery bypass grafting using bilateral internal thoracic arteries and bilateral radial arteries. The operative technique was similar to that of off-pump coronary artery bypass grafting for situs solitus.

Aortopulmonary fistula due to perforation of the aortic wall of a freestyle stentless valve.

Aortopulmonary fistula occurring as a result of a rupture of the aortic wall of a stentless valve has not been previously reported. A 71-year-old woman suffered aortopulmonary fistula 15 months after replacement of the aortic root with a Freestyle stentless valve (Medtronic, Inc, Minneapolis, MN) and Dacron graft extension to replace the aortic valve and the ascending aorta to the aortic arch. We describe the successful repair of the fistula and simultaneous mitral valve replacement.

[Surgical repair of a large isolated internal iliac artery aneurysm presenting with acute renal failure. A case report].

A 71-year-old man was suffering from a large right internal iliac artery aneurysm (rt. IIAA) associated with acute renal failure secondary to bilateral hydronephrosis. Immediately after admission, we performed resection of the rt.