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Balloon pulmonary angioplasty (BPA) is an emerging minimally invasive procedure to treat chronic thromboembolic pulmonary hypertension (CTEPH) in people who are not suitable for pulmonary thromboendarterectomy (PTE) or still have residual pulmonary hypertension and areas of narrowing in the pulmonary arterial tree following previous PTE. [1] [2]
Balloon pulmonary angioplasty (BPA) and pulmonary vasodilator drug treatment may be considered for those people that are not suitable for surgery. [ 11 ] Specialist imaging using either magnetic resonance or invasive PA is necessary to determine risks and benefits of interventional treatment with PEA or BPA.
Angioplasty is used to treat venous stenosis affecting dialysis access, with drug-coated balloon angioplasty proving to have better 6 month and 12 month patency than conventional balloon angioplasty. [13] Angioplasty is occasionally used to treat residual subclavian vein stenosis following decompression surgery for thoracic outlet syndrome. [14]
Cardiopulmonary bypass (CPB) or heart-lung machine, also called the pump or CPB pump, is a machine that temporarily takes over the function of the heart and lungs during open-heart surgery by maintaining the circulation of blood and oxygen throughout the body. [1]
Since the pulmonary resistance is proportional to the pressure driving the pulmonary flow (=), it follows that the pulmonary pressure decreases. This in turn means that the work per time (power) decreases because it is equal to the pressure gradient times the volumetric flow , which in this case is the cardiac output.
Treatment involves revascularization typically using either angioplasty or a type of vascular bypass [citation needed] Kissing balloon angioplasty +/- stent, so named because the two common iliac stents touch each other in the distal aorta. Aorto-iliac bypass graft; Axillary-bi-femoral [3] [4] and femoral-femoral bypass (sometimes abbreviated ...
The treatment options for mitral stenosis include mitral valve replacement by surgery, and percutaneous mitral valvuloplasty by balloon catheter. [15] The indication for invasive treatment with either a mitral valve replacement or valvuloplasty is NYHA functional class III or IV symptoms. [citation needed] Another option is balloon dilatation. [16]
When pulmonic stenosis (PS) is present, resistance to blood flow causes right ventricular hypertrophy. If right ventricular failure develops, right atrial pressure will increase, and this may result in a persistent opening of the foramen ovale, shunting of unoxygenated blood from the right atrium into the left atrium, and systemic cyanosis.