• 대한후두음성언어의학회지
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• 제8권2호
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• pp.235-238
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• 1997

Laryngeal saccular cyst may develop when obstruction of the orifice of the saccule occurs with resultant dilatation of saccule. It is classified into anterior saccular cyst and lateral saccular cyst. When saccular cyst occurs in infancy, it usually may cause respiratory distress, inspiratory stridor, cyanosis and dysphagia. In adults, it may cause hoarseness, dyspnea, dysphagia, pain and neck mass. The laryngeal saccular cyst may be treated by its removal with endoscopic or external approach, depending on the classification of saccular cysts, its size and individual patient factor. Recently, we have experienced a case of laryngeal saccular cyst so we report our clinical experience with brief review of literature.

• Journal of Korean Neurosurgical Society
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• 제42권4호
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• pp.342-345
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• 2007

The azygos anterior cerebral artery, a rare anomaly in the circle of Willis in which only a single vessel supplies the medial aspects of both anterior cerebral hemispheres, is closely associated with saccular aneurysms. We present three cases of azygos anterior cerebral artery aneurysms among the 781 cerebral aneurysms surgically treated at our institution in an 11-year period. These three cases all involved elderly women who presented with subarachnoid hemorrhage. Conventional cerebral angiography and CT angiography revealed small saccular aneurysms at the distal ends of the azygos anterior cerebral arteries. These aneurysms were clipped successfully using a bifrontal interhemispheric approach. Hence, the pathogenesis of these particular aneurysms relating to hemodynamic change, associated anomalies, and surgical pitfalls is discussed with review of literature.

• Journal of Chest Surgery
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• 제40권12호
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• pp.851-854
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• 2007

흉부 압박감과 심계항진, 흉통을 주소로 내원한 76세 여자 환자로 동맥류를 동반한 양측성 관상동맥-폐동맥루로 진단되었다. 수술은 심폐우회 및 심정지하에 이루어 졌는데 주폐동맥 주변의 동정맥루 혈관 및 동맥류 절제 그리고 폐동맥 내부에서 동정맥루의 출구를 봉합하였다. 술 후 결과는 양호하였으며 문헌고찰과 함께 보고한다.

• Journal of Korean Neurosurgical Society
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• 제55권5호
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• pp.280-283
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• 2014

Reports of thrombosis and recanalization of cerebral aneurysm are rare. We report two cases of small, saccular aneurysms in which spontaneous thrombosis had occurred during the preparation for endovascular coiling. Also, we review reported cases and propose the presumed pathogenesis.

• Journal of Korean Neurosurgical Society
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• 제46권3호
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• pp.221-225
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• 2009

Objective : Surgical treatment of posterior inferior cerebellar artery (PICA) aneurysms is challenging due to limited surgical accessibility. Endovascular approach has a benefit of avoiding direct injury to the brainstem or lower cranial nerves. Therefore, it has recently been considered an alternative or primary modality for PICA aneurysms. We retrospectively assessed outcomes following detachable coil embolization of saccular PICA aneurysms. Methods : From February 1997 to December 2007, we performed endovascular procedures to treat 15 patients with 15 PICA aneurysms. Fourteen patients with 14 PICA aneurysms morphology of which was saccular were reviewed retrospectively. Twelve patients had ruptured aneurysms. The aneurysms arose from the PICA origin site (n=12), the PICA lateral medullary segment (n=1), or the PICA tonsilomedullary segment (n=1). Results : Complete aneurysm occlusion was achieved in 10 patients, residual neck in 3, and residual sac in one. Radiological follow-up was performed in 7 patients with mean duration of 34.7 months (range, 1-97 months) and showed stable or complete occlusion in 6 patients. There were no rebleeding or retreatment after endovascular treatment. Thromboembolism was the only procedure-related complication (n=4 ; 28.6%). Asymptomatic PICA infarction occurred in two patients and symptomatic PICA infarction in two elderly patients with poor clinical grade. Of these procedural PICA infarction cases, 1 symptomatic PICA infarction patient developed ventriculitis and septic shock leading to death. The clinical outcome was good in 10 patients (71.4%). Conclusions : In the present study, detachable coil embolization has shown as an efficient modality for PICA saccular aneurysms challenging indications of microsurgery. However, thromboembolic complications should be considered, especially in poor clinical elderly patients with ruptured aneurysms.

• 한국전산유체공학회지
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• 제16권2호
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• pp.81-87
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• 2011

The importance of shear thinning non-Newtonian blood rheology on the hemodynamic characteristics of idealized cerebral saccular aneurysms were investigated by carrying out CFD simulations assuming two different non-Newtonian rheology models (Carreau and Ballyk models). To explore effects of vessel curvature, a straight and a curved vessel geometry were considered. The wall shear stress(WSS), relative residence time(RRT) and velocity distribution were compared at the different phases of cardiac cycle. As expected, blood entered the aneurysm at the distal neck and created large vortex in both aneurysms, but with higher momentum on the curved vessel. Hemodynamic characteristics such as WSS, and RRT exhibited only minor effects by choice of different rheological models although Ballyk model produced relatively higher effects. We conclude that the assumption of Newtonian fluid is reasonable for studies aimed at quantifying the hemodynamic characteristics, in particular, WSS-based parameters, considering the current accuracy level of medical image of cerebral aneurysm.

• 한국임상수의학회지
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• 제32권6호
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• pp.523-526
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• 2015

9년령의 중성화한 말라뮤트가 만성 기침 증상으로 내원하였다. 흉부 컴퓨터단층촬영상에서 말초 기관지가 확장된 모습으로 관찰되었다. 기관내강과 폐동맥 직경 비율은 약 2.2로 정상보다 큰 비율을 나타내었다. 확장된 기관지들은 특히 좌측 전엽과 후엽, 우측 중엽에서 포도송이 모양과 같은 형태를 보였다. 이러한 컴퓨터단층촬영 소견들을 바탕으로 낭상 기관지 확장증을 진단하였다.

• Tuberculosis and Respiratory Diseases
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• 제40권5호
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• pp.548-557
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• 1993

연구배경 : 기관지 확장증은 비가역적 병변으로 만성적이고 반복적인 폐기관지의 감염으로 인하여 많은 예에서 만성기관지염, 폐기종 및 기관지천식등이 동반되는 경우가 많다. 따라서 이들에서의 폐기능도 동반되는 질환이나 침범범위등에 따라서 다양하리라 생각이 되어 기관지 확장증의 병리해부학적 형태의 차이, 그리고 호흡곤란의 정도에 따른 폐기능의 차이를 조사하였다. 방법 : 1985년 1월부터 1991년 12월까지 경북대학병원에서 기관지 조영술사진에 의해 기관지확장증으로 확진된 93예를 대상으로 폐활량, 최대환기량, 노력성호기곡선 및 기류-용량 곡선에서 계측할 수 있는 각종지표와 closing volume을 구하여 기관지조영술상의 낭종형, 원통형 및 혼합형 등의 기관지확장증의 형태 및 Hugh-Jones의 호흡곤란의 정도에 따른 성적을 비교검토 하였다. 결과: 1) 이환된 폐구역수의 평균은 원통형(tubular), 낭종형(saccular) 및 혼합형(mixed) 에서 각각 4.7, 6.9, 7.8개였고 폐활량 및 노력성 호기곡선의 모든 계측치와 PEF를 제외한 호기류속도를 반영하는 계측치는 낭종형 및 혼합형에서 저명하게 감소하였다. 2) MVV는 낭종형 및 혼합형에서 감소하는 경향이었으며 CV/VC는 낭종형 및 혼합형에서 증가하는 경향이었다. 3) 호흡곤란의 정도가 심할수록 이환된 폐구역수는 유의하게 증가되었으며 폐환기능은 이와 비례하여 저하하였다. 결론 : 이상의 결과로 기관지확장증에서의 환기기능은 제한성환기 장애와 폐쇄성환기 장애가 동반되어 있으며 이는 호흡곤란의 정도가 심할수록, 낭종형 및 혼합형일수록 뚜렷하였다.

• Journal of Chest Surgery
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• 제9권2호
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• pp.187-192
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• 1976

During the past fifteen and one half years, a total of 64 cases of bronchiectasis were treated by pulmonary resection. The diagnosis of bronchiectasis was made relatively easily and accurately with bronchography. The average age of onset in the present series was 21 years old. Preoperative bronchograms were taken in all cases and revealed involvement of the left lower lobe in 14 cases, the right lower lobe in one case, the right upper lobe in 3 cases, the left lower lobe anal lingular segment in 9 cases, and multilobar involvement in cases. Bronchographically 18 tubular and II saccular and 2 cystic and 2 saccular and tubular forms were noted. Various types of pulmonary resection were performed on 59 cases. Complication developed in two cases. One showed pulmonary vein bleeding and was treated completely by reoperation; the other case developed empyema.

• Journal of Chest Surgery
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• 제29권1호
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• pp.103-106
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• 1996

본논문은 포낭(saccular)형인 내경동맥 동맥류의 치험 2례를 기술하였다. 수술은 전신마취하에 내경동맥 동맥류 절제후 shunt없이 단단문합하였다. 환자들은 모두 신경학적 후유증없이 회복되었다.