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고양이 연수 복외측부 세포의 동맥혈압 조절에 관한 연구
박국양,구용숙,김종환,Park, Guk-Yang,Gu, Yong-Suk,Kim, Jong-Hwan 대한흉부심장혈관외과학회 1990 Journal of Chest Surgery (J Chest Surg) Vol.23 No.5
Vasomotor areas were identified by stimulating various sites of the medulla electrically in adult cats anesthetized with a-chloralose and their correlation with somatosympathetic pressor or depressor responses was investigated. Followings are the results obtained: 1. Pressor areas were found in the rostral ventrolateral, the caudal ventrolateral and the rostral dorsolateral medulla. 2. Separate depressor areas were found dorsal and ventral to the rostral ventrolateral pressor area. 3. Some areas showed biphasic responses: depressor responses to low frequency[1 \ulcorner2 Hz] and pressor responses to high frequency[20 \ulcorner100 Hz] stimulation 4. Lesions on the rostral ventrolateral pressor areas abolished the somatosympathetic pressor responses to the stimulation of peripheral afferent nerves, while the depressor responses remained. Lesions on the caudal ventrolateral pressor area affected neither the pressor nor depressor responses to the peripheral nerve stimulation. 5. Lesions on the depressor areas resulted in decreased depressor responses to the peripheral nerve stimulation, but to a lesser degree than that resulted from lesions on the pressor areas. 6. A microinjection of glutamate solution to the pressor area resulted in a prolonged pressor response, while glutamate injection to the depressor areas did not elicit depressor responses. From the above results, it is concluded that there are separate pressor and depressor areas in the rostral medulla of cats and each area plays a role in somatosympathetic pressor and depressor responses, respectively.
박국양,유회성,김주현,Park, Guk-Yang,Yu, Hoe-Seong,Kim, Ju-Hyeon 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.2
The purpose of this study is to predict postoperative lung function by perfusion lung scanning method. 40 patients who underwent lobectomy or pneumonectomy between 1983-1985 were analyzed. Mean preoperative FEV1 was 2.36 L in lobectomy cases and 1.73 L in pneumonectomy cases. Preoperative and postoperative lung function were measured by routine spirometry in sitting position. Perfusion lung scanning was performed by 99mTc-MAA radioisotope. Postoperative FEV1 and VC were predicted by the formula; Postoperative FEV1 [VC]=Preoperative FEV1 [VC] x percent function of regions of lung not to be resected. In this study, I concluded that perfusion lung scanning is a simple and useful method to predict postoperative ventilatory function after pneumonectomy of lobectomy.
Fallot 사징증의 완전교정에 대한 임상 경험: 100례 보고
박국양 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.4
One hundred consecutive patients with the Tetralogy of Fallot underwent total correction at National Medical Center during the period 1977 to 1984, Oct. During this study period, we adopted more active policy towards reconstruction of right ventricular outflow tract across pulmonary valve. The mortality was 48% for patients less than 15 kg and 19% in patients above 15kg. Initially Bretschneider`s solution was used as cardioplegia, which was replaced by St. Thomas` solution since 1983, Jan. After then overall mortality dropped to 9% compared to 45% of initial learning period. Heart block occurred In 11 patients, 10 of whom died of combined low cardiac output syndrome. Pure low cardiac output syndrome was noted in 18 patients, most of whom responded to medical measures well except 4 patients. Recently sepsis of Serratia marcescence, which occurred explosively during several months to open heart surgery patients, attacked 3 tetralogy patients resulting in 2 hospital deaths. Our experience has shown that body weight, choice of cardioplegia and accumulation of experience as well as advance of operative and postoperative techniques are still important factors affecting survival rate at initial learning period.
박국양,이정호,유회성,Park, Guk-Yang,Lee, Jeong-Ho,Yu, Hoe-Seong 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.3
A patient of Ebstein`s anomaly underwent surgical repair on Oct. 24th, 1984. Tricuspid valve was replaced by 31mm St. Jude mechanical valve without plication of atrialized right ventricle. The annulus has been placed below the coronary sinus, with care not to damage the conduction system. But postoperatively complete heart block developed. Permanent pacemaker was implanted on his 12th POD. Now he has been followed up for 9 months. There was no hemodynamic problems yet.
박국양 인제대학교 1999 仁濟醫學 Vol.20 No.1S
한국에서의 심장이식은 1992년 11월 11일 중앙병원 송명근 등에 의해 최초로 실시되었으나, 역시 일반인에 대한 홍보의 부족, 의료계 내부의 심장이식에 대한 인식의 부족 등으로 인해 이식건수는 크게 증가하지 못한 것이 사실이다. 그러나 1994년 의사협회의 뇌사에 관한 선언이 있었고 KBS 인기 연기자 중 한명이 드라마 촬영도중 뇌사가 되어 전신 장기를 기증하는 등 홍보효과로 인해 장기기증이 급증하였고 심장이식안해도 한 해 20예가 넘게 되었다. 현재 우리나라에서의 심장이식은 그 중례가 한 해 약 20~30예에 이르고 있으며 그 술 후 성적역시 외국의 경우와 크게 다르지 않다. 중앙병원에 이어 서울대학병원에서는 1994년 3월에, 그리고 부천 세종병원에서는 같은 해 4월에 각각 심장이식에 성공하였으며 이후 1999년 1월 3일 현재까지 10개 병원에서 총 128예의 심장이식이 실시되었다.