ObjectiveTo investigate the risk factors of early rebleeding after ruptured intracranial aneurysm embolization surgery.MethodsForty-two patients with early postoperative rebleeding after ruptured intracranial aneurysm embolization surgery(study group) were enrolled,and 40 patients without early postoperative rebleeding after ruptured intracranial aneurysm embolization surgery at the same period was selected randomly as control group.Single factor and multiple factors were analyzed by non-condition Logistic regression model.ResultsThe single factor analysis result showed that age ≥50,history of hypertension,diabetes history,ruptured frequency number ≥2,combined with vasospasm,postoperative anticoagulation therapy,postoperative blood pressure fluctuation ≥ 30 mm Hg (1 mm Hg =0.133 kPa),pseudoaneurysm,fatal embolism and most embolism in study group [81.0％(34/42),76.2％(32/42),66.7％(28/42),76.2％ (32/42),81.0％ (34/42),76.2％ (32/42),66.7％ (28/42),66.7％ (28/42),66.7％ (28/42) ]had statistical differences compared with those in control group [57.5％ (23/40),50.0％ (20/40),37.5％( 15/40 ),50.0％ ( 20/40 ),57.5％ ( 23/40 ),47.5％ ( 19/40 ),37.5％ ( 15/40 ),37.5％ (15/40),37.5％ ( 15/40) ](P ＜0.05).Further multiple factors analysis showed that age ≥50,history of hypertension,ruptured frequency number ≥ 2,combined with vasospasm,postoperative anticoagulation therapy,postoperative blood pressure fluctuation ≥ 30 mm Hg were the independent risk factors of early postoperative rebleeding after ruptured intracranial aneurysm embolization surgery (P ＜0.05).ConclusionsAge ≥50,history of hypertension,ruptured frequency number ≥ 2,combined with vasospasm,postoperative anticoagulation therapy,postoperative blood pressure fluctuation ≥ 30 mm Hg are the independent risk factors of early postoperative rebleeding after ruptured intracranial aneurysm embolization surgery.The necessary interventions to these risk factors have important significance,and can lower the incidence of early postoperative ruptured rebleeding after ruptured intracranial aneurysm embolization surgery and improve the prognosis.