|
|
|
|
We established the frequency of Horner's syndrome(HS)in 248 elective patients after coronary artery bypass surgery.Patients were evaluated neurologically pre-and post-operatively and 6 months after surgery. Nineteen patients(7.7%)developed unilateral HS postoperatively,12 involving the left eye.The finding persisted in 10 patients(4%)at 6 months.When assessed 2 to 6 days,or 6 months,postoperatively,HS tended to be isolated and not associated with C8/T1 plexopathy.Among nondiabetic subjects,hypertensive patients had a higher frequency of HS than normotensive patients(10.6%versus 2.9%,p=0.05).Among normotensive subjects,diabetic patients had a higher frequency than nondiabetic patients(15%versus 2.9%,p=0.08).there was no association between HS,age, sex,internal mammary artery grafting,or length of cardiopulmonary bypass time.In summary,HS is a common and sometimes persistent complication of coronary artery bypass surgery.Hypertensive,and possible diabetic,patients appear to be at greatest risk for developing HS. |
|