Biological valves are becoming more frequently used in aortic valve replacement. While several reports have evaluated the performance of biological valves, echocardiography studies during exercise stress remain scarce. Furthermore, no current reports compare rate changes in the aortic valve area of biological valves under increased exercise load.
View Article and Find Full Text PDFBackground: Several hypotheses regarding the pathomechanisms of schizophrenia have been proposed. If schizophrenia is a unitary disease, then these pathological processes must be linked; however, if such links do not exist, schizophrenia may best be considered a group of disorders. Only a few studies have examined the relationships among these pathomechanisms.
View Article and Find Full Text PDFA 74-year-old woman had been on hemodialysis for about 2 months using a short-term indwelling dialysis catheter due to chronic kidney disease. A 20 mm-diameter left atrial neoplastic lesion was noted during a screening echocardiogram performed at the time of induction of hemodialysis. The lesion rapidly increased to 30 mm 2 months later and was referred to our hospital for surgical resection.
View Article and Find Full Text PDFA 64-year-old female with a diagnosis of Crawford typeⅡ thoracoabdominal aortic aneurysm( TAAA) including enlargement of the ascending aorta underwent a staged hybrid repair including visceral artery debranching thoracic endovascular aortic repair( TEVAR). First, total arch replacement with elephant trunk method was performed, followed by TEVAR for the descending thoracic aorta, and finally visceral artery debranching TEVAR for the thoracoabdominal aorta. Complications such as spinal cord infarction did not occur throughout the procedure.
View Article and Find Full Text PDFA pulmonary arteriovenous fistula (PAVF) is a direct abnormal connection between the pulmonary artery and pulmonary vein, lacking capillary tissue. On the other hand, a pulmonary venous aneurysm (PVA) is a localized dilation and aneurysmal formation in the pulmonary vein without reflux issues. Treatment approaches for PAVF and PVA differ, considering surgery or catheter embolization for PAVF due to the risk of cerebral infarction or rupture caused by the abnormal shunt.
View Article and Find Full Text PDFA 42-year-old woman with dysphagia was referred to our hospital. Computed tomography (CT) revealed Kommerell diverticulum( KD) associated with right aortic arch( RAA) and aberrant left subclavian artery (ALSCA). We performed total arch replacement (TAR) using a frozen elephant trunk (FET) technique.
View Article and Find Full Text PDFBackground: Lack of social support is associated with depression, anxiety, and insomnia. This study aimed to determine the source of support related to depression, anxiety, and insomnia among Japanese workers.
Methods: As part of a cohort study, we conducted a questionnaire survey among city government employees in Koka City, Shiga Prefecture, Japan, from September 2021 to March 2022.
722 patients who returned to the intensive care unit( ICU) after completing the cardiac surgery and closing the median sternotomy from Jan 2010 to Feb 2021 at our hospital were divided into 3 groups according to the different sternal closures. Sternum was fixed with 6 wires alone in group A (n=333), with 2 absorbable plates and 6 wires in group B( n=259) or with 3 titanium plates with 20 screws and 4 wires in group C (n=130). Background characteristics were not different between the 3 groups.
View Article and Find Full Text PDFGen Thorac Cardiovasc Surg
March 2022
Reports of early and catastrophic acute structural valve deterioration (SVD) in Trifecta valve (Abbott, St Paul, MN, USA) with multiple leaflet detachment are rare. We encountered two cases of early SVD in Trifecta valve with tears on two leaflets. Both cases presented with acute heart failure because of aortic insufficiency, and underwent redo aortic valve replacement; one patient died due to multiple organ failure caused by cardiogenic shock.
View Article and Find Full Text PDFMinim Invasive Ther Allied Technol
April 2021
An 83-year-old woman who had undergone total arch replacement for a thoracic aortic aneurysm seven years prior experienced concurrent rupture of second and third branch anastomotic pseudoaneurysms. A stent graft was initially deployed across the pseudoaneurysm from the third branch to the left subclavian artery. Following the left axillary and left carotid arterial bypass, the origin of the second branch was embolized with metallic coils.
View Article and Find Full Text PDFA 57-year old male with a dual-chamber pacemaker and 40-year history of hemodialysis and autoinflammatory disease developed a large, 35 × 35 mm intracardiac vegetation on the right ventricular pacing lead. As this mass was large enough to occlude the tricuspid valve orifice, transvenous lead extraction was deemed unsuitable. Instead, an urgent surgical extraction of the whole pacemaker system, including leads and vegetation, was conducted under cardiopulmonary bypass.
View Article and Find Full Text PDFIn this study, the localization of fluorescent protein (FP) was characterized in the muscles of four species and two subspecies of eels Anguilla anguilla, A. australis, A. bicolor bicolor (b.
View Article and Find Full Text PDFCase: A 26-year-old woman who had congenital aortic valve stenosis presented with exertional dyspnea. She had undergone percutaneous balloon aortic valvuloplasty 12 years previously at the age of 14. When she was 20 years old, she delivered a neonate by elective cesarean section at the 31st week of gestation because the mean pressure between the left ventricle and the ascending aorta was 52 mmHg.
View Article and Find Full Text PDFThis study planned to isolation and characterization of AKR1A1 cDNA from Bap injected nile tilapia (Oreochromis niloticus), comparison of its characteristic structures with those of other species, characterization of AKR1A1 gene and promoter, and investigation of AKR1A1 mRNA expression in various organs of Bap injected tilapia. The cDNA was 1172 bp long which includes an open reading frame of 975 bp encoding a 324 amino acids protein and a stop codon. The sequence showed 3' and 5' non-coding regions of 179 and 18 bp.
View Article and Find Full Text PDFJ Cardiothorac Surg
March 2016
Background: Pannus formation may disturb the leaflet movement of the prosthetic valve.
Case Presentation: A 61-year-old woman presented with exertional dyspnea. She had undergone mitral valve replacement with a bioprosthetic valve 31 years ago, which was replaced with a tilting disc valve 22 years ago.
Comp Biochem Physiol C Toxicol Pharmacol
October 2016
Green fluorescent protein (GFP) from eel (Anguilla japonica) muscle (eelGFP) is unique in the vertebrates and requires bilirubin as a ligand to emit fluorescence. This study was performed to clarify the physiological function of the unique GFP. Investigation of susceptibility to oxidative stress was carried out using three types of cell lines including jellyfish (Aequorea coerulescens) GFP (jfGFP)-, or eel GFP (eelGFP)-expressing HEK293 cells, and control vector-transfected HEK293 cells.
View Article and Find Full Text PDFA 67-year-old man experienced acute inferior myocardial infarction. Echocardiography and computed tomography showed massive pericardial effusion. He underwent emergency operation for ischemic ventricular free wall rupture.
View Article and Find Full Text PDFBetween 2003 and 2014, at Jichi Medical University Hospital, 11 patients with prosthetic valve endocarditis (PVE) underwent re-operation. There was 1 in-hospital death and 2 late deaths. The cause of death was cirrhosis, heart failure and sepsis, respectively.
View Article and Find Full Text PDFEnviron Toxicol Pharmacol
September 2015
We evaluated the metabolism of several herbicides and progesterone by two P450 proteins (CYP1A9 and CYP1C1) from Japanese eel (Anguilla japonica). Expression vectors harboring CYP1A9 and CYP1C1 sequences were introduced into Escherichia coli. E.
View Article and Find Full Text PDFThe implanted first-generation Björk-Shiley valve in our patient was functioning well before aortic surgery, but we replaced the valve because we confirmed disc erosion 39 years after implantation during the surgery. We judged that the implanted valve was no longer capable of maintaining the patient's life.
View Article and Find Full Text PDFGen Thorac Cardiovasc Surg
May 2013
Objective: Patient-prosthesis mismatch (PPM) may affect clinical outcomes in patients with aortic valve replacement (AVR). We retrospectively examined the PPM in patients with isolated AVR in the Japan Adult Cardiovascular Surgery Database (JACVSD).
Methods: We examined all patients with isolated AVR between January 1, 2008 and December 31, 2009.
Between December 2005 and November 2011, 11 patients with mitral valve regurgitation (MVR) resulting from native valve endocarditis underwent mitral valve plasty (MVP). These patients were aged 44.4 ± 11.
View Article and Find Full Text PDFWe performed redo-off-pump coronary artery bypass grafting( OPCAB) via a left thoracotomy using the PAS-Port system for proximal vein graft anastomoses in a patient with posterolateral myocardial ischemia. The patient was a 76-year-old man who had undergone coronary artery bypass grafting (CABG)[ left internal thoracic artery( LITA)-left anterior descending artery( LAD), saphenous vein graft(SVG)-posterior descending artery( 4PD), and SVG-postero-lateral branch( PL)] 14 years previously. Coronary angiogram showed that the LITA-LAD graft was patent but that the SVG-PL, left main trunk( LMT) and proximal right coronary artery(RCA) were occluded, and that there were 90% stenoses of LAD #7 and SVG-4PD anastomotic site.
View Article and Find Full Text PDF