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  • Title: [Deteriorating factors on the outcome in patients with fair grade of subarachnoid hemorrhage (WFNS grade I and II)].
    Author: Goto Y, Yamagata S.
    Journal: No Shinkei Geka; 2006 Jun; 34(6):577-82. PubMed ID: 16768133.
    Abstract:
    BACKGROUND AND PURPOSE: Although, the overall treatment results in aneurysmal subarachnoid hemorrhage (SAH) has been improving in recent years, more than 10% of the patients with WFNS grade I and II we have sought to determine the clinical variables for predicting poor functional outcome and symptomatic vasospasm (VS) in patients with individual WFNS grades. MEASUREMENTS: The eligible patient fulfilled the following conditions; (1) ruptured aneurysm located in the anterior part of the circle of Willis, (2) surgically clipped followed by craniotomy under microscope, (3) early surgery within 72 hours, (4) classified to WFNS grade I or II. The medical records were retrospectively reviewed in 119 patients (63 of grade I and 56 of grade II). Sex, age, Fisher's CT group, intraventricular hemorrhage (IVH), site of aneurysm, VS, hydrocephalus, premature bleeding and complications of various kinds were selected as the dependent variables. The contributions of these factors to outcome (Glasgow Outcome Scale, GOS) as well as VS were analyzed using the logistic regression method. MAIN RESULTS: Outcome was better in WFNS grade I (p=0.039), and VS occurred less often and responded well to various interventional techniques and drug delivery. No significant variables contributed to the poor outcome or VS in WFNS grade I. In WFNS grade II, logistic regression analysis showed that VS (OR 34.6, 95% CI, 30.8-38.9, p =0.012) and the complications (OR 52.4, 95% CI, 46.5-59.1, p=0.004) were significant predictors for a poor outcome. Fisher's group 3 was also the only significant factors in VS (OR 3.78, 95% CI, 3.35-4.28, p =0.039). The cause for the difference in outcome and VS were discussed in detail. CONCLUSION: The vasospasm and various kinds of complications were the predictive factors of poor clinical outcome, in patient of WFNS garde II. Therefore, careful management and meticulous/pertinent surgical maneuvers are mandatory to obtain better results in aneurysmal SAH, even in better WFNS grades.
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