[ XXXX behavior and sudden heart death in isolated stenoses or obstructions of the anterior interventricular branch].

@entity1 @entity1164 @entity1188 @entity432 @entity3980 @entity583 @entity943
The incidence and pattern of @entity943 recorded with 24 h ambulatory monitoring were studied in 144 @entity1 with angiographically documented stenoses (greater than or equal to 75%) or occlusions of the left anterior descending coronary artery ( @entity3980 ) and were related to left ventricular wall motion abnormalities. Ambulatory monitoring was performed at the time of coronary angiography and mean follow-up ranged from less than 1 to 5.4 with a mean of 3.3 years. The incidence of @entity1164 (within 1 h after onset of symptoms) was significantly higher in @entity1 with @entity432 than in @entity1 with @entity3980 (14/79, 17.7% versus 2/65, 3.1%); (p less than 0.05). One hundred and twenty-two @entity1 had anterior @entity583 documented with ECG and LV-angiograms. The incidence and size of @entity1188 were comparable in @entity1 with @entity3980 stenoses and @entity432 . There was no difference in wall motion abnormalities, LV end-diastolic pressure (LVEDP) and ejection fraction in both groups. The majority of @entity1 in both groups showed complex @entity943 of Lown classification IV during Holter monitoring. The incidence of @entity1164 in @entity1 with @entity943 of Lown class IV was significantly higher in @entity1 with @entity432 than in @entity1 with @entity3980 stenoses (9/40, 22.5% versus 1/31, 3.2%); (p less than 0.05). Quantitative evaluation of the @entity943 showed that there was no difference between @entity1 with @entity432 and @entity3980 stenoses so far as single PVC's is concerned, yet complex @entity943 (pairs and/or salvos) were found significantly more often in @entity1 with @entity432 than with @entity3980 stenoses (means 9.8 versus 6.3); (p less than 0.05). We conclude therefore that complete occlusion of the @entity3980 is accompanied by more complex @entity943 and bears a higher risk for @entity1164 than mere @entity3980 stenoses although both groups of @entity1 have the same left ventricular wall motion abnormalities.
