Short- and long-term clinical effects of primary directional coronary atherectomy for acute myocardial infarction

✍ Scribed by Saito, Shigeru ;Kim, Kunikane ;Hosokawa, George ;Tanaka, Shinji ;Miyake, Shogo ;Harada, Kazumi ;Hirobayashi, Kazuko

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 695 KB
• Volume: 39
• Category: Article
• ISSN: 0098-6569
• DOI: 10.1002/(sici)1097-0304(199610)39:2<157::aid-ccd10>3.0.co;2-e

✦ Synopsis

We performed primary directional coronary atherectomy (DCA) without antecedent thrombolytic therapy in 21 of 67 patients with acute myocardial Infarction within 24 hr of onset between June 1993-March 1994. Reperfusion with primary DCA was successful in 18 patients (85.7%, group D). Results were compared with those of primary balloon angioplasty patlents treated between June 1992-May 1993 (group P). Minimum lumen diameter (MLD) values both immediately after reperfusion and in predischarge angiograms were significantly larger in group D than In group P, but were similar in late follow-up angiograms. Although a larger MLD in group D than in group P contributed to the prevention of reocclusion of the coronary artery before discharge in DCA patients, a high rate of restenosls at late follow-up canceled the beneficial effects of primary DCA.