イセキ　ヒロシ   Iseki Hiroshi   伊関　洋    所属   医学研究科 医学研究科 (医学部医学科をご参照ください)    職種   特任顧問
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Three-way bipolar forceps: a novel bipolar coagulator system for nerve stimulation and detection of nerve potentials
掲載誌名	正式名：Neurologia medico-chirurgica 略　 称：Neurol Med Chir (Tokyo) ISSNコード：04708105
巻・号・頁	46(4),pp.169-174; discussion 175
著者・共著者	FUJITA Yoshiyuk†i , MURAGAKI Yoshihiro, NAMBU Kyojiro, HORI Tomokatsu, ISEKI Hiroshi
発行年月	2006/04/24
概要	Preoperative characterization of brain anatomy by magnetic resonance imaging and intraoperative functional characterization of the nervous system is essential in patients undergoing radical resection of brain tumors. A novel integrated system was developed combining conventional bipolar forceps with an electric stimulator and an oscilloscope. The system consists of a mechanical switching circuit allowing a wide range of electric characteristics and was designed to perform intraoperative electrophysiological studies, including functional mapping and measurements of motor evoked potentials (MEPs) and somatosensory evoked potentials (SEPs). This system achieved a significant reduction in exchange time (from 3.63+/-1.00 sec to 1.12+/-0.42 sec) between coagulation and stimulation, and reproducible measurement of MEPs from porcine limbs by cortical stimulation using the bipolar forceps. Functional mapping under awake craniotomy was carried out by cortical stimulation in patients with glioblastoma, and median nerve SEPs with high signal-to-noise ratio were elicited from the bipolar forceps on the sensory cortex of patients under general anesthesia. This integrated system is technically easy to operate and allows functional monitoring of an area that would otherwise be difficult to access using conventional methods. This three-way bipolar forceps system may reduce postoperative complications in patients undergoing neurosurgical procedures.
DOI	10.2176/nmc.46.169.
PMID	16636506