Redo mitral valve replacement using valve-on-valve technique in a patient with severe posterior mitral annular calcification.

Redo mitral valve replacement surgery due to bioprosthetic valve failure can carry serious surgical challenges. In addition to the usual redo sternotomy risk, there is risk of circumflex coronary artery injury or atrioventricular disruption from explanting the prosthesis. Alternatives to prosthesis explantation may be needed in some cases.

Surgery for hemoptysis in various pulmonary tuberculous lesions: a prospective study.

Hemoptysis due to pulmonary tuberculous lesions is a common cause of morbidity, and occasionally mortality. The aim of this study is to evaluate the surgical outcome of hemoptysis in patients with various tuberculous pulmonary lesions. A total of 45 cases who underwent surgical procedures for various pulmonary tuberculous lesions with hemoptysis were included in this study.