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

Marzocchi, Antonío; Piovaccari, Giancarlo; Marrozzini, Cinzia; Ortolani, Paolo; Palmerini, Tullio; Branzi, Angelo; Magnani, B

doi:10.1002/(sici)1097-0304(199708)41:4<371::aid-ccd3>3.0.co;2-2

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Stenting has reduced the restenosis rate in randomized trials after angioplasty ( Fischman et al ., 1994 ; Serruys et al ., 1994 ). Although the restenosis rate is reduced further with the use of radioactive stents ( Wardeh et al ., 1999 ) and combination drug therapy with acetylsalicylic acid and ticlopidine ( Gregorini et al ., 1997 ; Marzocchi et al ., 1997 ; Reffelmann et al ., 1998 ), restenosis remains a clinical problem.…”

Section: Introductionmentioning

confidence: 99%

Technical achievement: transthoracic Doppler echocardiography can be used to detect LAD restenosis after coronary angioplasty

Saraste

Koskenvuo

Mikkola

et al. 2000

Clinical Physiology

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We investigated the capability of transthoracic Doppler echocardiography (TTE) to detect and quantify the severity of restenosis in the left anterior descending coronary artery (LAD) after percutaneous transluminal coronary angioplasty (PTCA). We studied 10 consecutive patients assigned for quantitative coronary angiography (qCA) due to a recurrent angina pectoris after PTCA of the LAD. The LAD was visualized by TTE, and the presence of local turbulence and an increase in the blood flow velocity was regarded to indicate coronary stenosis. To assess the severity of the stenosis, the increase of blood flow velocity was measured. Angiography showed stenoses of various degrees (27-100%) in all patients. All stenoses were detectable using TTE. Moreover, the ratio of maximal blood flow velocity at the site of stenosis to the pre-stenotic blood flow velocity (M/P-ratio) correlated significantly with the reduction of the luminal diameter of LAD (r = 0.85, P < 0.003). A M/P-ratio higher than 3.0 predicted a diameter reduction of 50% or higher with sensitivity and specificity of 100% in patients with a subtotal stenosis (n = 9). Our results indicate that stenoses in the LAD could be found and the severity of the stenoses could be quantified reliably with TTE. This approach is totally non-invasive and less expensive than coronary angiography and can be used clinically in clarifying restenosis after coronary angioplasty.

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