الفهرس 
Coronary Artery Bypass GraftingOnly 14 pages are availabe for public view
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Abstract
Arrhythmia is a major complication of CABG and it happens in 30 % of patients after CABG . Arrhythmias represent a significant source of morbidity and mortality. Mainly has a benign course ,it may prolong the icu stay and rarely may lead to mortaility . Postoperative arrhythmias (POAs) include atrial tachyarrhythmia’s (ATs) and to a lesser extent ventricular arrhythmias (VAs) and Brady arrhythmias The outcome of arrhythmia depends on several factors like underlying cardiac function, patient’s comorbidities, arrhythmia duration, and ventricular response rate. So, POAs could be tolerated in some patients and a source of morbidity and mortality in others.
DM is established as an independent risk factor for atrial fibrillation (AF) Mechanisms include DM related atrial fibrosis due to Exaggerated systemic and tissue level oxidative stress, Dysfunction in the autonomic innervation and control of cardiovascular system and increased glucose concentration significantly enhances CaMKII-dependent activation of spontaneous sarcoplasmic reticulum Ca2+ release events that can contribute to cardiac mechanical dysfunction and arrhythmia and the elevation of serum osmotic pressure, which causes diastolic dysfunction and elevates left arterial pressure.
Hyperglycemia prolongs P-wave dispersion, Furthermore, a relationship reported between blood glucose and QTc duration, vascular damage caused by hyperglycemia induces tissue inflammation and fibrillation.
We conducted a case control study on 60 patients who underwent isolated elective on pump CABG divided in two groups group A arrhythmia group and group S non arrhythmia group patient clinical and procedure characters were noticed and recorded .Serum blood sugar Concentration( BS) was reordered every 2 hours in the ICU in the first 6 hours after operation and subsequently every 6 hours this was continued until discharge from the ICU. The maximum postoperative BS was defined as the highest concentration recorded from the operative day to discharge, and mean BS was defined as the mean value of the BS measurement .
History of DM .insluin Intake , postoperative Mean AND Maximum BS and post operative drainage volume showed statistically significance (p-value < 0.05).