Korean J Cerebrovasc Dis.
2000 Mar;2(1):19-23.
Prediction of Aneurysm Rupture and Amount of Subarachonoid Hemorrhage in Patients with Unruptured Intracranial Aneurysm
- Affiliations
-
- 1Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, Seoul, Korea. sk522@yumc.yonsei.ac.kr
Abstract
-
OBJECTS: Prediction of propensity of rupture would be useful to make a therapeutic decision for the patients with unruptured intracranial aneurysm. We assessed predictive values to identify the factors affecting the aneurysm rupture and the amount of subarach-noid hemorrhage (SAH).
MATERIALS AND METHODS
From August 1998 to January 2000, we prospectively studied 194 consecutive patients with ruptured intracranial aneurysm with a protocol designed for prediction of aneurysm rupture and SAH amount.
RESULTS
1) One hundred sixty-four(87.2%) ruptured aneuryms were small in size with a maximum diameter less than 10 mm: mean length of 6.1 mm (1.9-17.0 mm) and a mean width of 4.7 mm (1.0-15.8 mm). 2) Eighty-seven (48.9%) ruptured aneurysms were located in the anterior communicating artery, and 65 (74.7%) of them had large amount of SAH (Fisher Gade 3, 4) resulting poor clinical grade. 3) One hundred and four patients (55.6%) had history of hypertension, and 79 (76%) of them had large amount of SAH. Sixty-seven (34.5%) were smokers, and 59 (88%) of them had large amount of SAH. 4) Age, aneurysm size, location, multiplicity, size of parent artery, and the time of the day of rupture were not related to the propensity of aneurysm rupture and SAH amount.
CONCLUSION
Hypertension and smoking were the only significant factors for prediction of aneurysm rupture and SAH amount. Small aneurysms were not free from the rupture. Protection of unruptured aneurysm from rupture should be seriously considered also for small aneuryms.
