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Table 4 Postoperative complications among patients with different Hunt–Hess grades

From: Therapeutic Effects of Microsurgical Clipping at Different Time Points on Intracranial Aneurysm and Prognostic Factors

Complication Grade I (n = 18) Grade II (n = 38) Grade III (n = 39) Grade IV (n = 7) χ2 P
Cerebral vasospasm 0 1 1 3 23.437 0.000
Aneurysm rupture 0 0 1 2 17.825 0.000
Cerebral edema 0 0 1 2 17.825 0.000
Cerebral infarction 0 0 2 3 24.523 0.000
Intracranial infection 0 0 0 2 27.686 0.000
Severe pulmonary infection 0 0 2 2 13.725 0.003