• Title/Summary/Keyword: anastomosis

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A SCANNING ELECTRON MICROSCOPIC STUDY OF END-IN-END AND END-TO-END MICROVASCULAR ANASTOMOSIS IN THE RAT FEMORAL ARTERY (백서 대퇴동맥에서의 혈관함입문합술과 혈관단단문합술의 주사전자현미경적 비교연구)

  • kim, Uk-Kyu;Chung, In-Kyo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.1
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    • pp.16-29
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    • 1991
  • The occurrence of thrombotic occlusion & endothelial injuries at the site of anastomosis have been considered as major problems in microvascular surgery. The purpose of this study was to ascertain whether a end-in-end(sleeve, telescope) anastomosis compared favorably with end-to-end anastomosis in healing procedures on the endothelium and to study the possibility of clinical application in end-in-end method. The microvascular anastomoses have been performed with end-in-end method in the femoral arteries of 20 rats group, also with end-to-end method on the same arteries of another 20 rats group, and then the four anastomosed vessels in subdivided groups on each group were taken after period of 1, 3, 7, 14, 21 days following by anastomoses for scanning electron microscope observation. The results were as following: 1. The patency rate was 90% in the end-in-end group and 85%in the end-to-end group and late thrombus occurred at 7, 14 days on both groups, which suggested -consistent monitoring of patency was required for two weeks at least. 2. Platelet aggregates at the site of anastomosis began to organize on post-operation 3 days and in the end-in-end group, the initially decreased lumen of inserted vessel was gradually increasing on 7 days due to atrophy of the medial layers. 3. Re-endothelialization was completed between 7 and 14 days in end-in-end group, whereas between 14 and 21 days in end-to-end group.

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Circular Stapled Billroth I Anastomosis after Distal Subtotal Gastrectomy - Anastomotic Complications and Prevention - (원위부 위아전절제술 후 원형문합기를 이용한 위십이지장 문합술 - 문합부 합병증과 예방책 -)

  • Lee, Moon-Soo;Kang, Gil-Ho;Cho, Gyu-Seok;Kim, Yong-Jin;Kim, Hyung-Soo;Lee, Hwa-Soo;Kim, Sung-Yong;Baek, Moo-Jun;Kim, Chang-Ho;Cho, Moo-Sik
    • Journal of Gastric Cancer
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    • v.6 no.2
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    • pp.103-108
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    • 2006
  • Purpose: The circular stapled Billroth I gastrectomy has been gradually popularized because of several advantages. Thus, this study aims to identify what to be supplemented for the safety of this technique by examining the potential complication after the circular stapled Billroth I gastrectomy. Materials and Methods: This study selected 594 patients who underwent the circular stapled Billroth I gastrectomy because of the gastric cancer in our department of surgery from Jan. 1998 to Dec. 2004 as the subjects. As of Jan. 2001 when the bleeding on the anastomosis site was visually checked through the small incision at the opposite curvature to the lesion of the stomach to be resected and so the operation was completed, the patients were divided into the Group I (n=219) and Group II (n=375), which were the patients before and after Jan. 2001, respectively. Then, the clinical characteristics and postoperative anastomotic complications of both groups were compared. Results: For the comparison of complications between two groups, the anastomotic leakage was found in four cases in Group I and three cases in Group II (p=0.196). The stenosis on the anastomosis region was not observed in both groups. The bleeding on the anastomosis region illustrates the statistically significant difference between Group I and Group II, with 43 cases and 2 cases, respectively (P=0.0019). Conclusion: The circular stapled Billroth I gastrectomy is recommended because of several advantages of this technique. However, the bleeding on the anastomosis site may be indicated as the critical issue. Accordingly, the visual check on the bleeding on the anastomosis site during the operation will improve the safety of circular stapler.

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Circunferential resection and direct end to end anastomosis of mediastinal trachea on a post tracheostomy stenosis (기관절개술후 종격동기관 협착증에 대한 기관절제 단단 문합술)

  • Kim, Se Wha;Park, Hee Chul;Lee, Hong Kyun
    • Journal of Chest Surgery
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    • v.13 no.4
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    • pp.496-496
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    • 1980
  • A 37 year old male patient was suffered from severe labored breathing caused by post tracheostomy stenosis, which was localized at the mediastinal trachea [cuffed tracheal stenosis] and ranged 1.5 cm in length and approximately 3 ram. in diameter on tracheogram. After dilation of tracheal stenosis with dilator, endotracheal intubation was tried for induction of anesthesia and control of respiration during operation. A tube was placed just beyond the tracheal stenosis without respiratory difficulty. Under the endotracheal anesthesia, circumferential resection of the mediastinal trachea containing the stenosis, approximately 2 cm in length [4 tracheal rings}, was carried out and primary direct end to end anastomosis was performed with interrupted submucosal sutures [3-0 Dexon] and mobilization of trachea Postoperative tracheostomy was not performed. The patient was completely relieved from dyspnea immediately after operation. Post-operative convalescence was entirely uneventful and at present, about 3 months after operation, he is now conducting a usual life. From the literature and our experience, the etiology and treatment of post-tracheostomy stenosis were discussed.

Emergency In Situ Bypass during Middle Cerebral Artery Aneurysm Surgery : Middle Cerebral Artery-Superficial Temporal Artery Interposition Graft-Middle Cerebral Artery Anastomosis

  • Jung, Jong-Myung;Oh, Chang-Wan;Song, Kyung-Sun;Bang, Jae-Seung
    • Journal of Korean Neurosurgical Society
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    • v.51 no.5
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    • pp.292-295
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    • 2012
  • Many reports have been published on complications related to middle cerebral artery (MCA) aneurysm surgical clipping procedures. We report an emergency intracranial in situ bypass surgery case which was performed as a rescue procedure after aneurysmal neck laceration during clipping of an MCA large aneurysm. In this case, we performed in situ M3-superficial temporal artery (STA) interposition graft-M3 bypass procedure. If a STA-MCA anastomosis is not available under MCA flow obstruction, we can consider an emergency in situ MCA-MCA bypass procedure with or without an STA interposition graft.

Mycelial Melanization of Rhizoctonia solani AG1 Affecting Pathogenicity in Rice

  • Kim, Heung-Tae;Chung, Young-Ryun;Cho, Kwang-Yun
    • The Plant Pathology Journal
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    • v.17 no.4
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    • pp.210-215
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    • 2001
  • The phenotype of Rhizoctonia solani KR-13 was randomly segregated to both melanin-producing (M+) and non-producing (M-) types through successive cultures on PDA. M+type with dark melanin showed strong pathogenicity to rice and self-anastomosis. Meanwhile, M- type with white or less-melanized mycelia showed very weak pathogenicity and non-self-anastomosis. Melanin production of R. solani was affected by incubation temperature in both M+ and M- types, but not by light treatment. The application of tricyclazole, an inhibitor of fungal melanin biosynthesis, showed no controlling effect on R. solani causing rice sheath blight. Results of this study showed that melanization of mycelia of R. solani is an important pathogenicity factor in rice.

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Clinical Analysis of Cardiovascular Surgery -Report of 2094 Cases- (심혈관질환수술에 대한 임상적 고찰 -2094례 보고-)

  • 김병열
    • Journal of Chest Surgery
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    • v.21 no.6
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    • pp.1030-1039
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    • 1988
  • From 1985 through Oct. 1988, we have experienced 5 cases of Aorto-Coronary Bypass Surgery [ACBS] and 3 cases of Percutaneous Transluminal Coronary Anogioplasty [PTCA]under the diagnosis of unstable angina. There were 6 males and 2 females who ranged from 48 to 70 years old. Almost all patients had a evidence of hypertension & hyperlipidemia. Two patients showed old myocardial infarction and remaining patients showed myocardial ischemia on resting state. The patterns of involvement of coronary artery disease were single vessel disease [4 cases], double vessel disease [3 cases], Triple vessel disease [1 case]. Among 5 cases of ACBS, double bypass graft was in 3 cases and single bypass graft was in 2 cases. Mode of anastomosis were all individual anastomosis, using Saphenous vein graft. Postoperative complications were perioperative myocardial infarction [2 cases], postoperative bleeding [1 case], leg wound disruption [1 case]. Perioperative myocardial infarction cases didn*t survive. In cases of PTCA, there were no complications. Follow up periods were ranged from 1 month to 25 months. All survived cases were asymptomatic except one case, who showed Functional Class II.

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Surgical Treatment of Coronary Artery Occlusive Disease (관상동맥협착증의 외과적 치료 -6례 보고-)

  • 이재동
    • Journal of Chest Surgery
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    • v.21 no.5
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    • pp.842-849
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    • 1988
  • Between July, 1987, and September, 1988, 6 patients with coronary occlusive disease received coronary artery bypass surgery at Kyungpook University Hospital. There were five males and one female whose age ranged from 39 to 64 years[mean 54*8.0 years]. Of the 6 patients, 5 suffered from unstable angina, 1 suffered from stable angina. Selective coronary angiography revealed a significant stenosis of the left anterior descending artery in 6 cases, of its diagonal branch in 1 case, of the right coronary artery in 1 case, the circumflex artery in 1 case, and of its obtuse marginal branch in 1 case. The mode of anastomosis were single saphenous vein graft in 3 cases, single left internal mammary artery graft in 1 case, double saphenous vein graft with sequential anastomosis in 1 case, and left internal mammary artery plus saphenous vein graft in 1 case. Of these, 6 grafts to left anterior descending artery were done. There was no operative death, but perioperative myocardial infarction was happened in 1 case. All survivors were free of angina and discontinuing medical therapy during the follow up period[mean 7.8*5.15 months].

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