Hypertension is the most common chronic disease and the leading risk factor for disability and premature deaths worldwide. Approximately 10–20% of all patients with hypertension and 15–18% of the general popul… Read More
Month: December 2023
Pre-treatment optimisation with pulmonary rehabilitation of elderly lung cancer patients with frailty for surgery
Frailty develops as a result of age-related decline in many physiological systems and is associated with increased vulnerability to adverse outcomes following thoracic surgery. We prospectively tested our hypo… Read More
Correction: Severe mitral valve insufciency caused by standard surgical aortic valve implantation and its reparation using sutureless prosthesis
Application of myocardial work in predicting adverse events among patients with resistant hypertension
Hypertension is the most common chronic disease and the leading risk factor for disability and premature deaths worldwide. Approximately 10–20% of all patients with hypertension and 15–18% of the general popul… Read More
Effects of the response to the COVID-19 pandemic in chest trauma patients in China: a multicenter retrospective study
An international pandemic of severe coronavirus disease (COVID-19) has been caused by the novel coronavirus SARS-CoV-2. A large number of patients with chest trauma were infected with COVID-19. The COVID-19 pa… Read More
Mitral valve replacement using a collar-reinforced mitral prosthesis for severe mitral annular calcification, which secures implantation in both the supra-annular and intra-atrial positions: a case report
J Cardiothorac Surg. 2023 Nov 11;18(1):319. doi: 10.1186/s13019-023-02429-5.
ABSTRACT
BACKGROUND: Appropriate management of mitral annular calcification associated with mitral valve surgery must be determined on a case-by-case basis. However, an established procedure remains uncertain.
CASE PRESENTATION: This report describes a surgical case of severe mitral and aortic valve stenosis associated with severe mitral annular calcification in a 71-year-old woman who underwent mitral valve replacement with a collar-reinforced mitral prosthesis. The patient underwent surgical repair after the treatment for heart failure. As the present patient was deemed to be at high risk for conventional mitral valve replacement, we applied a composite prosthetic valve that was enlarged circumferentially on the ventricular side of the prosthesis with a bovine pericardial patch. First, the solid calcium bar was left untouched and only the friable calcified mass that was easily scattered was removed. Subsequently, the prosthesis was secured by two mattress sutures placed in the intra-atrial position at the region of the extended calcified myocardium. Additionally, ten mattress sutures were placed in the supra-annular position at the other regions capable of passing stitches from the ventricular side to the atrial side. Finally, a 1.5 cm wide trimmed bovine pericardial collar was sutured circumferentially from the annulus to the atrial wall using running 4-0 polypropylene for reinforcement. Although temporary hemodialysis was performed for acute renal failure, the patient remained asymptomatic.
CONCLUSIONS: The present case suggests that mitral valve replacement using a collar-reinforced mitral prosthesis may be an effective technique for severe mitral annular calcification. To avoid catastrophic complications associated with treatment for severely calcified annulus, it is crucial to make a prudent preoperative decision regarding the surgical strategy under circumstances where conventional mitral valve replacement is impossible.
PMID:37951918 | PMC:PMC10638697 | DOI:10.1186/s13019-023-02429-5
Effects of the response to the COVID-19 pandemic in chest trauma patients in China: a multicenter retrospective study
An international pandemic of severe coronavirus disease (COVID-19) has been caused by the novel coronavirus SARS-CoV-2. A large number of patients with chest trauma were infected with COVID-19. The COVID-19 pa… Read More
Serum cystatin C predicts the risk of non-ST-elevation acute coronary syndrome
Inflammation markers have been proposed as the predictors of adverse cardiac events in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS). This study aimed to investigate prognostic value of ser… Read More
Distal aortic biomechanics after transcatheter versus surgical aortic valve replacement: a hypothesis generating study
Biomechanical effects of transcatheter (TAVR) versus surgical (SAVR) aortic valve interventions on the distal aorta have not been studied. This study utilized global circumferential strain (GCS) to assess post… Read More
Effects of the response to the COVID-19 pandemic in chest trauma patients in China: a multicenter retrospective study
An international pandemic of severe coronavirus disease (COVID-19) has been caused by the novel coronavirus SARS-CoV-2. A large number of patients with chest trauma were infected with COVID-19. The COVID-19 pa… Read More