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  • Title: The postoperative C-reactive protein level can be a useful prognostic factor for poor outcome and symptomatic vasospasm in patients with aneurysmal subarachnoid hemorrhage.
    Author: Jeon YT, Lee JH, Lee H, Lee HK, Hwang JW, Lim YJ, Park HP.
    Journal: J Neurosurg Anesthesiol; 2012 Oct; 24(4):317-24. PubMed ID: 22732721.
    Abstract:
    BACKGROUND: Ninety-three patients undergoing surgical or endovascular operation secondary to aneurysmal subarachnoid hemorrhage (SAH) were retrospectively analyzed to determine the influence of the different time points of C-reactive protein (CRP) measurement on the prediction of vasospasm and clinical outcome. METHODS: Laboratory data such as the CRP level and the white blood cell count, preoperative demographic and clinical data, intraoperative and postoperative data, and complications such as intracerebral hemorrhage, hydrocephalus, vasospasm, and surgical decompression were collected at hospital discharge or symptomatic vasospasm and used as predictable factors for poor outcome (Modified Rankin Scale score 4 to 6). RESULTS: Twenty-three and 28 patients showed poor outcome and symptomatic vasospasm after SAH, respectively. Both preoperative and postoperative CRP levels were significantly higher in patients with a poor outcome compared with patients with a good outcome (P<0.05). The area under the receiver operating characteristic curve of CRP measured on postoperative day 1 or 2 (CRP POD1-2) for predicting a poor clinical outcome was 0.870, and its cutoff point of 4 mg/dL had a sensitivity of 0.826 and a specificity of 0.843. A high CRP level after aneurysm treatment was associated with severe neurological deterioration on admission, cerebral infarction, intracerebral hemorrhage, and surgical decompression (P<0.05). CRP POD1-2, and not the preoperative CRP, was an independent factor in predicting symptomatic vasospasm (P<0.05). In patients with symptomatic vasospasm, an increase in the postoperative CRP was associated with the time profile of developing symptomatic vasospasm. CONCLUSION: Postoperative CRP, especially CRP POD1-2, can be a useful prognostic factor for both poor outcome and symptomatic vasospasm in patients with aneurysmal SAH.
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