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2017
El Damaty, A., C. Rosenstengel, M. Matthes, J. Baldauf, O. Dziemba, W. Hosemann, and H. W. S. Schroeder, "A New Score to Predict the Risk of Hearing Impairment After Microvascular Decompression for Hemifacial Spasm.", Neurosurgery, vol. 81, issue 5, pp. 834-843, 2017 Nov 01. Abstract

BACKGROUND: Intraoperative monitoring of brainstem auditory evoked potentials (BAEPs) has been implemented to reduce the risk of hearing impairment during microvascular decompression for hemifacial spasm.

OBJECTIVE: To evaluate intraoperative monitoring of BAEPs during microvascular decompression in patients with hemifacial spasm for predicting the risk of hearing impairment after surgery.

METHODS: This prospective study included 100 patients. BAEPs were recorded for all patients. We established a scoring system for the changes in wave I amplitude, I-III interpeak latency, and wave V amplitude and latency. For each change, total points were calculated, and a score out of 6 was assigned to every patient. We classified the patients based on the points scored into 3 risk groups: low-risk (0-3), medium-risk (4-5), and high-risk (6). Further, the correlation between the score and the hearing outcome was evaluated to detect the incidence and degree of hearing impairment.

RESULTS: Eighty-seven patients scored 0 to 3, 10 scored 4 to 5, and 3 scored 6. The degree of hearing impairment was proportionate to the score recorded at the end of surgery, and patients in the low-risk group showed no impairment; medium-risk group, deterioration of maximum 2 grades according to World Health Organization classification of hearing impairment; and high-risk group, deterioration of 3 to 4 grades.

CONCLUSION: Intraoperative monitoring of BAEPs evaluated through our scoring system was valuable in predicting hearing impairment after surgery.

Marx, S., A. El Damaty, J. Manwaring, E. E. L. Refaee, S. Fleck, M. Fritsch, M. R. Gaab, H. W. S. Schroeder, and J. Baldauf, "Endoscopic Third Ventriculostomy before Posterior Fossa Tumor Surgery in Adult Patients.", Journal of neurological surgery. Part A, Central European neurosurgery, 2017 Dec 14.
El Damaty, A., S. Marx, S. Fleck, and H. W. S. Schroeder, "Neuroendoscopic approach to intracranial ependymal cysts", World Neurosurgery, 2017. AbstractWebsite

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El Damaty, A., S. Langner, and H. W. S. Schroeder, "Ruptured massa intermedia secondary to hydrocephalus: a case report", World Neurosurgery, 2017. AbstractWebsite

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2016
2014
El Damaty, A., J. C. Manwaring, and H. W. S. Schroeder, "The guillotine knife: a novel tool for safe endoscopic cutting of intracranial membranes: Technical note", Journal of neurosurgery: American Association of Neurological Surgeons, pp. 1–4, 2014. Abstract
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Manwaring, J. C., A. El Damaty, J. Baldauf, and H. W. S. Schroeder, "The small-chamber irrigation technique ({SCIT}): a simple maneuver for managing intraoperative hemorrhage during endoscopic intraventricular surgery", Neurosurgery, vol. 10 Suppl 3, pp. 375–379; discussion 379, 2014. Abstract

BACKGROUND: Acute intraoperative intraventricular hemorrhage is a feared event in endoscopic neurosurgical procedures. OBJECTIVE: To describe the small-chamber irrigation technique (SCIT) for intraoperative endoscopic management of intraventricular hemorrhage. METHODS: The SCIT was used in intraventricular surgery for hydrocephalus, intraventricular tumors requiring biopsy, arachnoid cysts, and colloid cysts. RESULTS: Intraventricular hemorrhage was successfully managed endoscopically with a combination of the SCIT, routine irrigation, and coagulation, allowing for completion of the primary procedures. CONCLUSION: The SCIT is a powerful tool that the neuroendoscopist can use for visualization to achieve hemostasis when performing intraventricular endoscopic surgery.

2013
Zohdi, A. Z. M., A. M. El Damaty, K. B. Aly, and E. A. El Refaee, "Success rate of endoscopic third ventriculostomy in infants below six months of age with congenital obstructive hydrocephalus (a preliminary study of eight cases)", Asian journal of neurosurgery, vol. 8, no. 3: Medknow Publications, pp. 147, 2013. Abstract
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