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불완전 회복된 안면신경 마비 환자에서 보톡스를 이용한 안면 불균형 교정
홍창기,변재용,여승근,박문서,차창일 대한이비인후과학회 2007 대한이비인후과학회지 두경부외과학 Vol.50 No.12
Background and Objectives:A number of surgical procedures exist to improve facial symetry for patients with facial plex coordinated movements of facial expression. The paralyzed face is often distorted by the excesive pull of the normal contralateral face during emotional expression. We report the use of botulinum toxin in patients with facial paralysis to improve lower facial asymmetry by limiting the excesive pull of contralateral face. Subjects and Method:Ten adult patients with unilateral facial paralysis were included in this study. Patients had injections at contralateral facial muscle which were zygo-cial symerty and patient appreciation of this were assesed by measuring the level diference of both mouth angles and diference in the distance from the midline to both mouth angles before and 1 month after injection. Also patients were asked to fill up the questionnaire about the magnitude of efect and any related side efects of injection at 1 month folow up. Results:Botox injection decreased the level diference of both mouth angle and diference of distance from midline to both mouth angles in ro-vement in expresive facial asymmetry after botulinum toxin injection into normal lower face. Conclusion:Botulinum toxin injection is a useful ancillary technique for improving dynamic facial asymmetry of the paralyzed face. (Korean J Otor -hinolaryngol-Head Neck Surg 2007 ;50 :1087-91)
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홍창기,이지선,권재현 한국지질과학협의회 2019 Geosciences Journal Vol.23 No.4
GPS technique has been widely used for monitoring large scale earthquake and long baseline approach is required if one is interested in relative positioning mode. Therefore, a proper modeling on the atmospheric effects should be performed because those effects are not fully removed in the long baseline case. In this study, GPS data is processed to monitor the displacement due to large scale earthquake based on the position-velocity-acceleration (PVA) model. PVA model is efficient in that both velocity and acceleration information, which can also be used for creating peak ground velocity and acceleration maps, are obtained simultaneously. The ionospheric disturbances due to crustal movement can also be monitored using the model. The algorithms are successfully applied to (Mw 9.0) Tohoku earthquake event occurred on March, 11, 2011 and the results show good agreements with those from the previous studies.
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난원공개존증과 심방 세동 환자의 뇌경색 용적과 초기 신경학적 결손 비교
홍창기,김일곤,이정,최윤재,유나영,나정호,박희권 대한뇌졸중학회 2012 Journal of stroke Vol.14 No.1
Background: Atrial fi brillation (AF) and patent foramen ovale (PFO) are established sources of cardioembolism. We investigated differences in stroke outcome and patterns between PFO and AF. Methods: We performed a retrospective review of the medical records and brain MR images of patients with AF or PFO from the prospective acute stroke and transient ischemic attack registry. Infarct pattern and volume on diffusion-weighted imaging, and the national institutes of health stroke scale (NIHSS)on admission were compared between patients with AF and PFO. Results: From June 2005 to July 2008, a total of 289 subjects were enrolled (AF group, n=156; PFO group, n=133). Infarct pattern analyzed with MR images revealed that multiple vascular territorial infarction was more prevalent in AF group than in PFO group (26.9% vs. 8.3%, P <0.01). A probable cardiac embolism,radiologically defi ned as territorial infarction without symptomatic steno-occlusion of the corresponding artery, was more frequently documented in AF group than in PFO group (71.8% vs. 41.4%, P <0.01) The infarct volume of PFO was smaller than that of AF. Compared to AF, PFO was associated with the mild neurologic defi cit (NIHSS≤3) after adjusting age, sex and previous stroke history. Conclusion: These results suggested that AF and PFO had different characteristics such as infarct patterns and initial clinical severity although both are classifi ed as cardioembolism.
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홍창기,최준용,나정호,박희권 대한뇌졸중학회 2012 Journal of stroke Vol.14 No.2
Cerebral venous thrombosis (CVT) rarely presents with cortical subarachnoid hemorrhage. A 54 year-old woman complained of intractable headache. Brain MR scan showed subarachnoid hemorrhage in the right parietal sulci on Fluid-Attenuated Inversion Recovery image. The venous phase of digital subtraction angiography demonstrated the thrombus and venous congestion in superior sagittal sinus and vein of Trolad. After 3 days of anticoagulation therapy, the symptoms disappeared.
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