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추체첨부에 생긴 지주막낭에 의해 유발된 희귀 삼차 신경통 : 증례보고
권지연(Ji-Eyon Kwon),Nurani Rahma Arafah,조성우(Sung-Woo Cho),황기환(Kihwan Hwang) 대한두개저학회 2020 대한두개저학회지 Vol.15 No.2
Vascular compression is the most common cause of classic trigeminal neuralgia. However, other causes should be excluded. We describe a rare case of a patient presenting with typical trigeminal neuralgia associated with an arachnoid cyst in the petrous apex. A 22-year-old female patient with right trigeminal neuralgia for several years was treated with carbamazepine, which relieved the pain temporarily but was completely ineffective for the 3 months prior to presentation. Thin-slice computed tomography and magnetic resonance imaging showed a cephalocele in the petrous apex. Eventually, surgical aspiration of the cyst was performed using an endoscopic endonasal approach, which resulted in complete resolution of her pain. Petrous apex cephalocele should be considered in the differential diagnosis of trigeminal neuralgia, as it can be easily resolved by surgical aspiration.
뇌동맥류 결찰술 직후 발생한 중추성 요붕증과 동반된 SIADH 1 예
고성준 ( Sung Jun Ko ),김현숙 ( Hyunsuk Kim ),신나라 ( Nara Shin ),한미연 ( Miyeun Han ),김효진 ( Hyo Jin Kim ),최홍미 ( Hong Mi Choi ),허혁 ( Hyeok Heo ),황기환 ( Kihwan Hwang ),방재승 ( Jae Seung Bang ),김세중 ( Sejoong Kim ) 전북대학교 의과학연구소 2013 全北醫大論文集 Vol.37 No.2
이상나트륨혈증은 뇌동맥류로 인한 지주막하출혈의 수술적 치료 후 나타나는 흔한 합병증 중 하나이다. 저자들은 뇌동맥류의 직접 결찰술 후 발생한 일시적인 중추성 요붕증 및 동반된 항이뇨호르몬 부적절분비증후군(SIADH)을 성공적으로 치료하였기에 보고하는 바이다. 60세 여자 환자가 오른쪽 이측의 시야 결손을 주소로 내원하였고 검사에서 발견된 상상돌기주변동맥류로 인한 것으로 생각되었다. 수술 중 동맥류의 목 부위가 파열되었으나 성공적으로 결찰되었다. 수술 직후 환자는 다뇨와 함께 고나트륨혈증이 발생하였으며 함께 시행된 검사 결과 중추성 요붕증이 의심되었다. 고나트륨혈증의 치료 후 저나트륨혈증이 발생하였고 검사 결과 SIADH가 의심되었으며 수분 제한 후 호전되었다. 이는 뇌동맥류 수술 후에 급격한 고나트륨혈증의 발생을 주의 깊게 관찰해야 하며, 회복 후에 나타날 수 있는 저나트륨혈증을 고려해야 함을 시사한다. Dysnatremia is one of common medical complications after surgical treatment of subarachnoid hemorrhage (SAH) due to cerebral aneurysm. We report a case of transient central diabetes insipidus (DI) followed by syndrome of inappropriate antidiuretic hormone secretion (SIADH), after direct clipping of ruptured cerebral aneurysm. A 60-year-old woman presented visual defect of right temporal area due to large paraclinoid aneurysm. During operation, the neck of aneurysm was ruptured, but successfully clipped. Just after the operation polyuria and hypernatremia developed and biochemical findings revealed that the patient presented central DI. A few days after recovery from hypernatremia, hyponatremia occurred and laboratory work revealed SIADH, and after free water restriction the patient was recovered from hyponatremia. Therefore, we suggest to monitor abrupt hypernatremia after operation and to implement rigorous fluid therapy, considering hyponatremia after recovery.
황기환,전계석 慶熙大學校 1998 論文集 Vol.27 No.-
In this paper, we have studied the design and construction methods for the development of STAM(Scanning Tomographic Acoustic Microscope). STAM is a tomographic image reconstruction system using ultrasound. In order to obtain tomographic image information needed in image processing, this system requires the detection method for receiving both amplitude and phase information of the ultrasonic signal simultaneously and the multi-projection method for acquiring tomographic data to the three-dimensional structure of an object. In this study, for the construction of STAM, we have made a quadrature signal detector which is capable of detecting both amplitude and phase information from the conventional SLAM(Scanning Laser Acoustic Microscope), and a specimen rotation device for acquiring tomographic data, respectively. In this experiment, it has been shown that the STAM can give the separated tomographic images of each layer for the specimen which consists of two layers with different pattern respectively using four projections. It will be expected that the this STAM is useful tool in evaluating the object with multilayer structures.