Neurologia medico-chirurgica
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Neurol. Med. Chir. (Tokyo) · Jan 2008
Case ReportsTransanal prolapse of a ventriculoperitoneal shunt catheter--case report.
A 4-year-old girl presented with asymptomatic bowel perforation and transanal protrusion of a ventriculoperitoneal (VP) shunt catheter. She had undergone repair of myelomeningocele at birth and subsequent VP shunting for congenital hydrocephalus 1 month later. Seven months after VP shunting, she underwent revision of the peritoneal catheter. ⋯ One month after the first operation, intestinal obstruction recurred. Duplication of the terminal ileum was removed to prevent further recurrence of the intestinal obstruction. She underwent ventriculoatrial shunting 2 weeks after the second operation and was discharged without neurological sequelae.
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Neurol. Med. Chir. (Tokyo) · Jan 2008
Case ReportsSubarachnoid hemorrhage caused by rupture of a distal anterior inferior cerebellar artery aneurysm--three case reports.
Three female patients, two under 35 years old, presented with ruptured aneurysms of the distal anterior inferior cerebellar artery (AICA) manifesting as subarachnoid hemorrhage. The first patient had a ruptured saccular aneurysm of the meatal loop of AICA, which was treated by direct neck clipping. ⋯ The mechanism of development of distal AICA aneurysm remains unclear, and some cases indicate a complicated causal relationship between the aneurysms and vascular anomalies. Neurosurgeons need to carefully evaluate the vascular structure around the aneurysms by preoperative angiography in each case, and select the most appropriate strategy.
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Neurol. Med. Chir. (Tokyo) · Jan 2008
Case ReportsAsymptomatic carotid artery dissection caused by blunt trauma.
A 42-year-old man presented with asymptomatic traumatic carotid artery dissection 3 months after sustaining blunt injury with tracheal laceration. Magnetic resonance imaging performed as a screening procedure for asymptomatic carotid artery injury unexpectedly showed dissection of the carotid artery. ⋯ Intravascular ultrasonographic virtual histology defined the precise anatomic structure of the lesion and identified the internal flap as fibrotic. Careful clinical assessment of patients with blunt cervical trauma may permit diagnosis of carotid artery dissection and intervention prior to the development of cerebral ischemic symptoms.
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Neurol. Med. Chir. (Tokyo) · Nov 2007
Case ReportsRisk factors for perioperative cardiac complications after lumbar fusion surgery.
Cardiac complication is a leading cause of death in the perioperative period after non-cardiac surgery. The present study retrospectively investigated perioperative cardiac complications after spinal fusion surgery in 901 consecutive adult patients who underwent fusion surgery in the lumbar spine from January 2005 to December 2006. Cardiac complications developed in seven patients (0.8%), four males and three females aged 62 to 75 years (mean 66.6 years), in the perioperative period (myocardial infarction in 6 and angina pectoris in 1). ⋯ Five patients improved after conservative medical treatment in an intensive care unit. Percutaneous transluminal coronary angioplasty was performed in one patient and coronary artery bypass graft surgery in one. The possibility of perioperative cardiac complications should be considered before lumbar fusion surgery, especially in elderly patients with hypertension and/or diabetes mellitus, and calcified atherosclerosis of the abdominal aorta and/or common iliac arteries.
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Neurol. Med. Chir. (Tokyo) · Oct 2007
Use of gelatin-thrombin matrix hemostatic sealant in cranial neurosurgery.
The present study evaluated the hemostatic efficacy and handling of gelatin-thrombin matrix hemostatic sealant during intracranial procedures. A retrospective analysis of 478 consecutive patients undergoing intracranial procedures identified seven patients with acute intense or persistent intraoperative bleeding which could not be arrested in time by standard hemostatic methods. The efficacy of gelatin-thrombin matrix was assessed by determining bleeding severity before and after application, time to hemostasis, amount of gelatin-thrombin matrix necessary, need for additional hemostatic measures, and need for reoperation to control hemorrhage. ⋯ The gelatin-thrombin matrix was ready to use within 1 minute in every case. Gelatin-thrombin matrix appears to be an effective, easy-to-use, and readily available hemostatic agent for cranial neurosurgery. Combination with fibrinogen is recommended in special situations.