Stenting with the half (disarticulated) palmaz‐schatz stent

Abstract

A total of 110 half (disarticulated) Palmaz-Schatz coronary stents were implanted in 102 patients. Procedural success rate was 98%. Elective stenting was performed in five patients. The others received half stents for bail-out situations, including short dissections, relapsing stenoses, dissections not adequately covered by a full stent, ostial stenoses, and thrombus containing lesions. Seventeen patients received no anticoagulation except aspirin. Complications included one procedural death, three acute occlusions (resulting in one Q and two non-Q wave myocardial infarctions), and one non-Q wave infarction related to side branch closure. Stenting with the half Plamaz-Schatz coronary stent is an effective technique. It allows stenting in situations where a full stent may not be ideally suited. Use of only half a stent reduces thrombogenicity and halves costs.

Deployment of a previously embolized, unexpanded, and disarticulated Palmaz-Schatz stent

“…Mehan et al [4] report one case of half-stent embolization in their series of 110 disarticulated stent deployments. In their case, the stent was lying free in the proximal circumflex coronary artery.…”

“…We could confirm by high dose fluoroscopy in two orthogonal planes (Phillips DCI) that the wire did not pass through the interstices of the stent. We therefore felt we could safely deploy the stent, knowing that if the wire were actually adjacent to the stent, we would merely compress it against the vessel wall as Mehan et al [4] did.…”

“…Mehan et al [4], for example, do not apply negative pressure to the balloon as it is advanced. Colombo et al [1] report that they use a 16 gauge angiocath to place the half-stent on the proximal half of the delivery balloon (i.e.…”

Coronary stenting with the half (disarticulated) Palmaz-Schatz stent: Immediate results and six-month follow-up

“…Therefore, it is possible that other factors, such as the structure and the material of the stent, are important in determining subacute thrombosis and restenosis in addition to those known factors [3,8]. Coronary stenting with the half Palmaz-Schatz stent is a safe and effective procedure with a high rate of procedural success and low risk of subacute thrombosis [9]. The half stent is particularly suitable for ostial stenoses, relapsing short stenoses, localized dissection or stenoses distal to curves, and twisting coronary segments in which the whole stent would be difficult to place.…”

“…The half stent is particularly suitable for ostial stenoses, relapsing short stenoses, localized dissection or stenoses distal to curves, and twisting coronary segments in which the whole stent would be difficult to place. However, few data exist about the half Palmaz-Schatz stent and, furthermore, no data exist regarding follow-up [9][10][11][12].…”