RISK FACTORS OF CARDIAL COMPLICATIONS OF THE EARLY POSTOPERATION PERIOD IN PATIENTS WITH ABDOMINAL AORTA ANEURYSM

Aim. To find out the risk factors for cardial complications of the early postoperation period (EPP) in patients operated for non-complicated abdominal aorta aneurysm (AAA) of atherosclerosis origin.

Material and methods. Totally 95 patients studied, of those 88 (88,4%) males, mean age — 67,6±7,1 y. with non-complicated ААА of the atherosclerotic origin. All patients had cardiovascular comorbidities. At baseline all patients were selected into two groups: 1 group — 52 patients 46 (88,5%) men, mean age — 66,8±7,9 y., taking drugs with negative chronotropic effect (beta-blockers, non-dihydropyridine calcium channel antagonists); 2 group — 43 patients, 38 (88,4%) men, mean age 68,5±6,1 y., not taking these drugs. In the each of the groups were two subgroups according the operation approach: minilaparotomy (MLT) or median laparotomy (LT). As an endpoint, we used myocardial infarction (MI), acute heart failure (ACF), cardiac rhythm and conduction disorders. Patients with MI, ACF and cardiovascular mortality were regarded as combined endpoint. Patients with transient myocardium ischemia, without significant increase of the level of cardiospecific enzymes, were regarded as intermediate point of the study.

Results. Of 95 operated patients with EPP in 17 (18%) there was endpoint and in 30 (31,6%) — intermediate point. By the stepped discriminate analysis we set the risk factors for endpoint and intermediate point: left ventricle myocardium remodelling (LV), angina pectoris of III functional class, arterial hypertension of the 3 grade with target organs involvement (LV hypertrophy), heart rate ≥84 bpm in postoperation period.

Conclusion. In patients with non-complicated AAA of atherosclerotic origin the assessment of baseline cardial status, postoperation period pharmacotherapy, LV remodelling parameters (by EchoCG) and the use of MLT leads to the decrease of the risk of cardial complications of EPP. 

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