We could show that some clinical parameters and treatment modalities were associated with prognosis. Younger age, male gender, higher Karnofsky Performance Score at discharge, total surgical resection, radiotherapy and reoperation were predictor for better prognosis.

Hydrocephalus is not a rare complication following aneurysmal subarachnoid hemorrhage. Hydrocephalus following subarachnoid hemorrhage can progress acutely (0-3 days), subacutely (4-13 days) or chronically (after 13 days). The predisposing factors leading to hydrocephalus after subarachnoid hemorrhage are not known exactly. This study assessed the predictive factors for the development of this condition. All patients presenting with subarachnoid hemorrhage between 1992-2001 were evaluated. All of them had initial computed tomography (CT) and hydrocephalus was diagnosed on CT scans. Age, gender, preexisting diabetes mellitus and hypertension, neurological state according to the Hunt and Hess scale at admission, Fischer grade on CT, the presence of intraventricular hemorrhage and localization of aneurysm were analyzed to see if there was any meaningful relationship between hydrocephalus and these factors. One hundred and fourteen patients with aneurysmal subarachnoid hemorrhage were evaluated. The incidence of hydrocephalus was 28.1 %. The incidence for acute hydrocephalus was 18.4 %, for subacute 5.2 % and for chronic 4.3 %. Sixty-nine percent of patients with hydrocephalus were graded as 3, 4 or 5 according to the Hunt and Hess scale on admission. Fifty-five percent of patients with hydrocephalus were graded as 3 and 4 according to Fisher grade on initial CT scan. Preexisting diabetes, higher Fisher grade and intraventricular hemorrhage were statistically significant predictors for the development of hydrocephalus. But only preexisting diabetes and higher Fisher grade were independent predictors according to multivariate analyses.

Distal PICA aneurysms constitute only 0.28-1.4% of all intracranial aneurysms. Most of the patients present with SAH and along with this; intraventricular hemorrhage is seen and later on, hydrocephalus develops. As for treatment, surgery and endovascular interference methods can be applied.

There were no statistically significant differences in sinonasal complications (e.g. synechiae, anosmia, deformity, and sinusitis) between the two groups. Although the perforation rate (especially for perforations in the middle portion of the septum) was statistically greater in Group 1 than in Group 2, the hyposmia rate was statistically greater in Group 2 than in Group 1.

Rhinological complications have been reported previously, but no study has thoroughly investigated them. In this study, we extensively examined postoperative rhinological complications in patients who underwent MTHS due to pituitary adenoma.Serious vascular complications, such as carotid injury, as well as major complications, such as optic nerve injury and cerebrospinal fluid rhinorrhea, can occur during MTHS. However, rhinological complications can be ignored because they are a minor cause of morbidity compared to major complications. These patients may experience problems such as epistaxis, █ InTRODuCTIOn T he sphenoid sinus approach to the pituitary gland was a breakthrough treatment for lesions in this region. The lateral rhinotomy approach to trans-sphenoidal hypophysectomy was performed for the first time in 1907 by Schloffer (26). Halsted (9) and Hardy (10) laid the foundation for today's microscopic transnasal hypophyseal surgery (MTHS) procedure by improving their technique. The development of neuroendoscopy in the 1990s resulted in new approaches to this region (2).AIM: Major complications of microscopic transnasal hypophyseal surgery (MTHS), such as cerebrospinal fluid rhinorrhea, carotid injury, and optic nerve injury, are very rare. However, late rhinological complications can be ignored because they are a minor cause of morbidity compared with major complications. In this study, we extensively examined postoperative rhinological complications in patients who underwent MTHS for pituitary adenoma. MATERIAL and METhODS:Thirty-one patients diagnosed with pituitary adenoma, who underwent MTHS and whose preoperative nasal examinations were recorded between January 2007 and January 2014, were included in the study. A detailed rhinological examination of the patients was performed. RESuLTS:A total of 12 of 31 patients (38.7%) had a perforated nasal septum, and synechiae were detected in the nasal cavities of 13 patients (42%). Anosmia occurred in three patients, hyposmia in two, and a nasal tip deflection and saddle nose deformity were detected in one patient with a perforated nasal septum. No perinasal loss of sense, oronasal fistula, or purulent secretion in the nasal cavity was found in any patient. COnCLuSIOn:The nasal structures, particularly the nasal septum mucosa, should be treated gently during MTHS. The nasal stages of the operation should be performed with the help of an otolaryngologist until adequate experience is gained.