Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Mortality and Morbidity of Aneurysmal Neck Clipping during the Learning Curve

  • Lee, Sang-Ho (Department of Neurosurgery, College of Medicine, Hallym University) ;
  • Hwang, Hyung-Sik (Department of Neurosurgery, College of Medicine, Hallym University) ;
  • Moon, Seung-Myung (Department of Neurosurgery, College of Medicine, Hallym University) ;
  • Kim, Sung-Min (Department of Neurosurgery, College of Medicine, Hallym University) ;
  • Choi, Sun-Kil (Department of Neurosurgery, College of Medicine, Hallym University)
  • Published : 2006.07.30
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Abstract

Objective : Young neurosurgeons need to focus on the mortality and morbidity of aneurysmal neck clipping to develop a personal experience with an initial series. Methods : Total 88 aneurysms from 75 patients who underwent neck clipping by the same operator from 2001 to 2004 were reviewed. Patients were divided into three groups : first year [Group I], second year [Group II], and third year [Group III] in each group. Location of aneurysm, age, Fisher grade, Hunter-Hess grade [H-H grade], postoperative Glasgow outcome scale [GOS], and complications related to surgical procedures were evaluated with Chi-square and logistic regression analyses. Results : Fourteen patients had complications related to surgery [18.7%]. The major causes of mortality and morbidity related to surgery were cerebral infarction, hemorrhage and brain swelling due to intraoperative rupture, brain retraction and vasospasm. Among the 4 cases of mortality were 2 patients in Group I, 1 patient in Group II and 1 patient in Group III, and location of aneurysms were 2 internal carotid artery[ICA] and 2 posterior communicating artery[PCoA] aneurysms. There were 4 morbidity and new neurological deficits in Group I, 4 in Group II and 2 in Group III. Although mortality and morbidity during the learning curve had a statistical significance in H-H grade, age [>60 years old], and aneurysm location [especially ICA aneurysm] as variables, mortality mainly occurred in ICA and PCoA aneurysms. Conclusion : Experienced supervision or endovascular approach should be considered for the treatment of ICA and PCoA aneurysms during the learning curve.

Keywords

References

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