Journal of Neurosurgery
Juri Kivelev, Mika Niemelä, Riku Kivisaari and Juha Hernesniemi
Intraventricular cavernomas (IVCs) occur in only 2–10% of patients with cerebral cavernomas. Reports concerning IVC are scarce and are limited mostly to sporadic case reports. In this paper, the authors present a series of 12 patients with IVCs that were treated at a single neurosurgical department. In addition, the authors reviewed the literature.
All clinical data were analyzed retrospectively. Follow-up questionnaires were sent to all patients. Outcome was assessed using the Glasgow Outcome Scale. The authors also conducted a PubMed search and found 77 cases of IVC.
The patients' median age was 47 years, and the male/female ratio was 2:1. A cavernoma occurred in the lateral ventricle in 6 patients, in another 5 it was in the fourth ventricle, and 1 had a lesion in the third ventricle. Almost all patients presented with acute headache on admission and in more than half, the symptoms were related to cavernoma bleeding. In total, 8 rebleedings occurred in 5 patients during a median of 0.4 years. Three patients with a cavernoma of the fourth ventricle presented with a cranial nerve deficit. In 8 cases, a cavernoma was surgically treated an average of 1.3 years after the diagnosis. Only 1 patient underwent surgery in the acute phase after a major intraventricular/intracerebral hemorrhage. The median follow-up time was 2 years. No patient was lost to follow-up, and no patient died. In total, on follow-up 9 patients improved and 3 had a persistent neurological deficit, of which 2 existed before surgery.
In the present series, the IVCs had a high tendency for rehemorrhage. Surgery is advocated when hemorrhages are frequent, and the mass effect causes progressive neurological deficits. Microsurgical removal of the IVC is safe, but in the fourth ventricle it can carry increased risk for cranial nerve deficits.
Elina Koskela, Johanna Pekkola, Riku Kivisaari, Tero Kivelä, Juha Hernesniemi, Kirsi Setälä and Aki Laakso
Terson's syndrome (TS) is a vitreous hemorrhage in association with subarachnoid hemorrhage (SAH). Its diagnosis is often delayed, which may result in vision loss secondary to treatable conditions. Methods to hasten early diagnosis and consequent ophthalmic referral are desirable. The aims of this study were 1) to assess the specificity and sensitivity of conventional head CT for diagnosing TS in patients with aneurysmal SAH (aSAH); and 2) to determine the incidence of TS and its association with age, sex, aSAH severity, and overall mortality.
Patients admitted to Helsinki University Central Hospital who underwent surgery or endovascular treatment for a ruptured intracranial aneurysm during 2011 were participants in this prospective study. They underwent serial dilated fundoscopic examinations during a 6-month period. Two radiologists independently reviewed ocular findings suggestive of TS on conventional CT head scans obtained in all patients as a routine diagnostic procedure. Associations between TS and relevant clinical, radiological, and demographic data were analyzed with uni- and multivariate logistic regression.
Of 121 participants, 13 (11%) presented with TS, and another 22 (18%) with intraretinal hemorrhages. For reviewing CT head scans, the overall observed agreement between the 2 raters was 96% (116 of 121 cases), with a substantial κ of 0.69 (95% CI 0.56–0.82). The sensitivity of the CT findings for TS was 42%, and the specificity was 97%. Associations of the World Federation of Neurosurgical Societies (WFNS) and Hunt and Hess grades on admission, the presence of intracerebral hemorrhage, female sex, and aneurysm length with TS were all statistically significant. Logistic regression demonstrated that sex and WFNS grade were independently associated with TS and provided the best fit to the data.
Routinely looking for TS findings in CT head scans may prove valuable in clinical practice. Terson's syndrome is associated with female sex and poor clinical condition on admission.