Biomaterial Database

Percutaneous transluminal laser angioplasty with contact probes. 1988

J Lammer, and F Karnel

Department of Radiology, Hospital of the University of Graz, Austria.

Percutaneous transluminal laser angioplasty (PTLA) with a metal contact probe and a sapphire contact probe was performed under experimental conditions and in 88 patients with femoropopliteal artery occlusions. The experiment revealed that more ablation was caused by the sapphire probe than by the metal probe. Because of heat accumulation in subsurface tissue layers the metal probe caused a three to four times larger zone of thermal necrosis surrounding the tissue defect. Clinically both contact probes revealed similar results. The initial rate of recanalization of femoropopliteal artery occlusions with a mean length of 8 cm was 78% (metal probe) to 82% (sapphire probe), and the perforation rate was 14% (metal probe) to 8% (sapphire probe). Doppler ultrasound examinations after 6 months revealed a patency rate of 84%. PTLA has proved to be a successful and safe procedure for recanalization of arterial obstructions that are not appropriate for fibrinolysis.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011150	Popliteal Artery	The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.	Arteria Poplitea,Artery, Popliteal,Popliteal Arteries
D005260	Female		Females
D005263	Femoral Artery	The main artery of the thigh, a continuation of the external iliac artery.	Common Femoral Artery,Arteries, Common Femoral,Arteries, Femoral,Artery, Common Femoral,Artery, Femoral,Common Femoral Arteries,Femoral Arteries,Femoral Arteries, Common,Femoral Artery, Common
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000497	Alloys	A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.	Alloy
D000537	Aluminum Oxide	An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.	Alumina,Alumina Ceramic,Aluminum Oxide (Al130O40),Aluminum Oxide (Al2O),Aluminum Oxide (AlO2),Bauxite,Corundum,Sapphire,Ceramic, Alumina,Oxide, Aluminum
D000800	Angioplasty, Balloon	Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.	Balloon Angioplasty,Dilation, Transluminal Arterial,Arterial Dilation, Transluminal,Arterial Dilations, Transluminal,Dilations, Transluminal Arterial,Transluminal Arterial Dilation,Transluminal Arterial Dilations
D001157	Arterial Occlusive Diseases	Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.	Arterial Obstructive Diseases,Arterial Occlusion,Arterial Obstructive Disease,Arterial Occlusions,Arterial Occlusive Disease,Disease, Arterial Obstructive,Disease, Arterial Occlusive,Obstructive Disease, Arterial,Occlusion, Arterial,Occlusive Disease, Arterial