[Characteristics of the QT interval in the ECG following reconstructive surgery of the common carotid artery].
In 40 patients undergoing thrombendarterectomy of the common carotid artery, the frequency-corrected QT interval in the ECG, as well as the serum sodium, potassium and total calcium were studied. Examination took place preoperatively 1.-3. hour postoperative and the 1. and 5. day postoperative. In 13 patients, pathological prolongation of QT interval (greater than 440 msec) was already found pre-operatively. Postoperative significant QT interval prolongations could not be found in any patient, independent of the site of operation or pre-operative findings. The total serum calcium concentration was postoperatively significantly reduced (P less than 0.01). There was no correlation between the reduced total serum calcium and the QT interval in the ECG. The findings contradict the assumption that clinically relevant reduction of the autonomous cardial innervation is frequent in patients undergoing thromboendarterectomy of the common carotid artery.
Lischke
V
V
Zentrum der Anaesthesiologie und Wiederbelebung, Johann-Wolfgang-Goethe-Universität, Frankfurt.
Behne
M
M
Hermann
R
R
Zegelmann
M
M
D000368:Aged; D002118:Calcium / Q000097:blood; D004562:Electrocardiography; D016894:Endarterectomy, Carotid; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011188:Potassium / Q000097:blood; D012964:Sodium / Q000097:blood
D012964:Sodium; D011188:Potassium; D002118:Calcium
Das Verhalten des QT-intervalls im EKG nach rekonstruktiven Eingriffen an der A. carotis communis.