title: [Immediate bypass operation prevents heart infarct in PTCA emergencies].
abstract: Between December 1984 and June 30, 1989, we performed PTCAs on 1438 patients. The procedures were performed with strict cardiosurgical standby. In 24 patients (22 X LAD, 2 X RCA), abrupt coronary occlusion necessitated immediate bypass surgery. In 19 cases, abrupt coronary closure occurred during PTCA in the cath lab; in five patients, during the following 24 h on the intermediate care ward. No patient died. Immediate bypass surgery prevented myocardial infarction (MI) in 79.2% of the cases. None of the 19 patients with abrupt coronary closure in the cath lab had a Q-wave myocardial infarction postoperatively. One of these 19 patients had an R-wave reduction (non-Q-MI) and one patient had a new terminally negative T-wave in the postoperative ECG. Two of the five patients with evidence of acute coronary occlusion on the intermediate care ward had small Q-wave MIs and one had a non-Q-wave MI postoperatively. Time of ischemia (defined als time interval between the end of PTCA and the beginning of extracorporal circulation) was 65 +/- 28 min in the former group and 122 +/- 30 min in the latter.
  
  
  CONCLUSIONS
  Because immediate bypass surgery prevents Q-wave MI after abrupt closure during PTCA, strict temporal and spatial cooperation with the cardiac surgeon is mandatory.
authors.affiliation: Abteilung Kardiologie, Zentralkrankenhaus Links der Weser, Bremen.
authors.forename: T
authors.initials: T
authors.lastname: Schröder
authors.forename: E
authors.initials: E
authors.lastname: Hörmann
authors.forename: K
authors.initials: K
authors.lastname: Leitz
authors.forename: H J
authors.initials: HJ
authors.lastname: Engel
mesh_terms: D015906:Angioplasty, Balloon, Coronary; D006328:Cardiac Catheterization; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000175:diagnosis / Q000601:surgery*; D003402:Creatine Kinase / Q000097:blood; D004562:Electrocardiography; D004630:Emergencies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000517:prevention & control*; D011183:Postoperative Complications / Q000175:diagnosis / Q000517:prevention & control*
chemical_list: D003402:Creatine Kinase
vernacular_title: Die sofortige Bypass-Operation verhindert den Herzinfarkt beim PTCA-Notfall.