J Korean Neurosurg Soc 52 | August 2012 Table 3. Age and clinical outcome according to hematoma volume ICH Volume Outcome Below 31 mL Unfavorable Favorable Above 31 mL Unfavorable Favorable Total Unfavorable Favorable ICH : intracerebral hemorrhage ≤65 0 18 3 9 3 27 Age >65 2 4 4 1 6 5 Table 4. Initial mental status and outcome GCS score ICH location Severe Moderate Mild Frontal Unfavorable 0 1 0 Favorable 0 8 6 Sylvian fissure Unfavorable 1 2 0 Favorable 1 3 7 Temporal Unfavorable 2 3 0 Favorable 1 0 6 Total 5 17 19 ICH : intracerebral hemorrhage, GCS : Glasgow coma scale ma was more than 31 mL, no significant correlation was noted between age and prognosis (Table 3). Gender Among 41 patients, there were 11 male patients and 30 fe- male patients. Of 11 male patients, one patient had an unfavor- able outcome while 10 others had favorable outcome. On the other hand, of 30 female patients, 8 patients had an unfavorable outcome while 22 others had favorable outcome. By gender, the proportion of male patients in the favorable outcome group was higher than female patients, but this was not significant (p>0.05). When patients were analyzed based on location and volume of ICH, gender and clinical outcome were not signifi- cantly correlated (p>0.05). Lateralization of brain lesion Patients who had ICH in the dominant hemisphere were 23 which outnumbered those who had ICH on the non-domi- nant hemisphere (18/41). Of 23 patients with ICH in the dom- inant hemisphere, 5 had unfavorable outcome while 18 others had favorable outcome. In contrast, of patients with ICH in the non-dominant hemisphere, 4 had an unfavorable outcome while 14 had a favorable outcome. However, this was not sig- nificant (p>0.05). Initial mental status According to GCS score, patients were classified into three groups : a severe group with GCS 3-8, a moderate group with GCS 9-12, and a mild group with GCS above 13. Among the 41 patients with ICH, 5 were in severe group (12.1%), 7 were in the Total 2 22 7 10 9 32 moderate group (12.1%) and 19 were in the mild group (46.3%). Furthermore, p-value there was a statistical significance be- tween the initial mental status and clin- p<0.05 ical outcome (p<0.05). Based on hema- toma location, clinical outcome was p>0.05 significantly more favorable in patients with better initial mental status when p<0.05 the hematoma was in the temporal lobe (p<0.05). On the contrary, initial men- tal status and clinical outcome were not correlated in the patient group with ICH in the frontal lobe or sylvian fis- p-value sure (p>0.05) (Table 4). Total 1 p>0.05 Aneurysm size 14 p>0.05 By aneurysm size, patients were clas- 3 sified into three groups : small, with an 11 p<0.05 aneurysm less than 10 mm in diameter; 5 large, with a diameter of 10-24 mm; 7 p<0.05 and giant, with a diameter greater than 41 24 mm. The small group of 11 patients with a small aneurysm had two unfa- vorable outcomes (18.2%) and nine favorable outcomes (81.8%). Of 29 patients with a large aneurysm, 7 had an unfa- vorable outcome (24.1%) and 22 had a favorable outcome (75.9%). One patient with a giant aneurysm had a favorable outcome. However, aneurysm size and clinical outcome were not significantly correlated. No statistical relationship was seen among aneurysm size, presence of a midline shift, or initial mental status (p>0.05). Analysis of the relationship between he- matoma volume and aneurysm size, showed an average volume of 18.64 mL for the small aneurysm group and 38.74 mL for the large aneurysm group. However no significant relationships were found. Hematoma location ICHs were divided into three groups based on location : 18 had frontal ICH, 11 had sylvian ICH (26.8%), and 12 had tem- poral ICH (29.3%). Of the three locations, the temporal ICH group had the most favorable clinical outcome (42.6%, 5/12) while in the frontal ICH, survival was 6.7%, and in the sylvian fissure ICH, it was 21.4%. However, no significant conclusions could be drawn. Midline shift Of the 41 patients, 24 were had a midline shift of the brain pa- renchyma, with a midline shift range of 3 mm to 15 mm. The av- erage length of the midline shift was 7.5 mm. Patients with a poor prognosis showed a mean midline shift of 8.36 mm while those with a good prognosis had a mean midline shift of 3.3 mm, for a 5.06 mm difference (p<0.05). Based on the ROC curve, sen- sitivity was 89% and specificity was 69% if the midline shift was 82