title: Complication avoidance in transcallosal transforaminal approach to colloid cysts of the anterior third ventriclen: An analysis of 80 cases.
abstract: OBJECTIVE
  The objective of the present study is to analyze the complications and their avoidance in a series of 80 patients operated by transcallosal transforaminal approach to colloid cysts of the anterior third ventricle.
  
  
  METHODS
  The surgical outcome and complications of 80 patients operated by transcallosal transforaminal approach for colloid cysts in the anterior third ventricle was analyzed. A detailed pre- and post-operative neurological assessment was done in all patients. Neurocognitive assessment of corpus callosal function was done in the last 22 cases. CT scan of the brain was done in all patients, before and after surgery.
  
  
  RESULTS
  All patients underwent transcallosal transforaminal approach. Total excision of the lesion was achieved in 79 patients and subtotal in one. The complications encountered were postoperative seizures in six, acute hydrocephalus in four, venous cortical infarct in four, transient hemiparesis in four, transient memory impairment, especially for immediate recall in nine, mutism in one, subdural hematoma in one, meningitis in three, and tension pneumocephalus in one patient. There were two mortalities. There was no incidence of postoperative disconnection syndrome.
  
  
  CONCLUSIONS
  Colloid cyst is surgically curable. With good knowledge of the regional anatomy and meticulous microsurgical techniques, there is a low mortality and minimum morbidity, when compared to the natural history of the disease. With increasing experience, most of the complications are avoidable. The limited anterior callosotomy does not result in disconnection syndromes.
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Nigel P
authors.initials: NP
authors.lastname: Symss
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Ravi
authors.initials: R
authors.lastname: Ramamurthi
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Ravindranath
authors.initials: R
authors.lastname: Kapu
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Santhosh Mohan
authors.initials: SM
authors.lastname: Rao
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Madabushi Chakravarthy
authors.initials: MC
authors.lastname: Vasudevan
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Anil
authors.initials: A
authors.lastname: Pande
authors.affiliation: Post Graduate Institute of Neurological Surgery, Dr. A. Lakshmipathi Neurosurgical Centre, V.H.S. Hospital, Chennai, Tamil Nadu, India.
authors.forename: Goutham
authors.initials: G
authors.lastname: Cugati
keywords: Anterior third ventricle; colloid cyst; complications; disconnection syndrome; transcallosal; transforaminal