First clinical experience of a novel penetration catheter for patients with severe coronary artery stenosis.
The study aimed to evaluate the efficacy of a novel penetration catheter for severe coronary artery disease. Severe coronary artery diseases such as chronic total occlusions or severe calcified stenoses sometimes obstruct the subsequent crossing of balloon catheter after successful wire crossing. A novel penetration over-the-wire catheter has been developed for severe coronary artery disease. The main shaft is a coreless stainless coil that consists of eight stranded stainless wires to cross through a severe stenosis by manual rotation. This device was applied during percutaneous coronary intervention for patients with severe coronary artery disease obstructing the subsequent crossing of balloon or microcatheters after successful wire crossing. Initial results were examined. Fourteen eligible patients were enrolled consecutively. Among those, 10 patients had chronic total occlusion and 7 patients showed severe angiographical calcification. The device was successfully crossed through the lesion and enabled subsequent dilatation in all patients without any complication. This new device enables the crossing of severe coronary artery stenoses and therefore favors further dilatation in this lesion subset.
Tsuchikane
Etsuo
E
Department of Cardiology, Toyohashi Heart Center, Aichi, Japan. dokincha@aioro.ocn.ne.jp
Katoh
Osamu
O
Shimogami
Manabu
M
Ito
Tatsuya
T
Ehara
Mariko
M
Sato
Hidetoshi
H
Matsubara
Tetsuo
T
Suzuki
Takahiko
T
D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation*; D002114:Calcinosis / Q000150:complications / Q000628:therapy*; D002404:Catheterization; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000150:complications / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged