Myocardial performance index in subjects susceptible to high-altitude pulmonary edema.

Objective: A recent study concerning high-altitude pulmonary edema (HAPE), a non-cardiogenic pulmonary edema, suggested that it is initially a hydrostatic-type pulmonary edema. We suspect that some extent of cardiac insufficiency may likely relate to the mechanism of the development of this disease.

Methods: By Doppler echocardiography, the Tei index (a new quantitative index proposed for the evaluation of global myocardial performance) and the systolic pulmonary artery pressure (sPAP) were measured before and after 30 minutes of hypoxic breathing.

Temporary inferior vena cava filter for deep vein thrombosis and acute pulmonary thromboembolism: effectiveness and indication.

Although the temporary inferior vena cava filter (IVC-F) is being used increasingly for protection against pulmonary thromboembolism (PTE), indications for its use are not established. Our strategy for the prevention of PTE is: (1) contraindication or failure of anticoagulation: permanent IVC-F; (2) for patients with residual proximal deep vein thrombosis (a) who have permanent risk factor: permanent IVC-F; (b) who have transient risk factor: temporary IVC-F; (3) others: no IVC-F. Temporary IVC-F was also implanted in deep vein thrombosis (DVT) patients without PTE who were preoperation or had floating thrombus.

Long-term vardenafil therapy improves hemodynamics in patients with pulmonary hypertension.

The phosphodiesterase-5 (PDE-5) inhibitor, sildenafil, has been reported to produce sustained pulmonary vasodilatation in patients with pulmonary hypertension (PH). Recently, vardenafil, a more potent and selective PDE-5 inhibitor than sildenafil, has been approved for the treatment of erectile dysfunction. However, the long-term effects of oral vardenafil in patients with PH are unknown.

Large saccular aneurysm in a coronary arterial fistula--a case report.

The authors present a case of a large saccular aneurysm in a coronary artery fistula originating from the proximal left anterior descending coronary artery, draining into the main trunk of the pulmonary artery. The diagnosis was made by 3-dimensional computed tomography and coronary arteriography. Congenital coronary artery fistula is not uncommon.