JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

A case-control study of suprachoroidal hemorrhage during pars plana vitrectomy

T Sharma, D S Virdi, S Parikh, L Gopal, S S Badrinath, B N Mukesh
Ophthalmic Surgery and Lasers 1997, 28 (8): 640-4
9268994

BACKGROUND AND OBJECTIVE: To investigate the risk factors associated with suprachoroidal hemorrhage (SCH) during vitrectomy.

PATIENTS AND METHODS: Of 6971 pars plana vitrectomies performed between May 1988 and December 1994, SCH occurred intraoperatively in 12 (0.17%) cases. Forty-two age- and sex-matched control subjects were selected by computer-generated random numbers. Preoperative and intraoperative variables were subjected to univariate and conditional logistic regression analysis.

RESULTS: Statistically significant risk factors for SCH after univariate analysis included myopia (P = .048), aphakia or pseudophakia (P = .024), rhegmatogenous retinal detachment (P = .044), scleral buckling and/or encirclage at vitrectomy (P = .029), and longer duration of surgery (P = .044). Multivariate analysis revealed independent risks associated with the absence of a lens and longer duration of the surgery.

CONCLUSION: A knowledge of the risk factors involved with SCH helps the physician to identify patients who are at a greater risk for this complication.

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