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- 저자 : Man Hon Tang (검색결과 3 건)
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Man Hon Tang,Jason Lim,Inny Bushmani,Chee Yung Ng 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.3
We present an unusual case of advanced ovarian carcinoma with postoperative complications of ischemia and perforation of therectum as a result of tumor embolism. The interval progression from ischemia to infarction of the rectum was captured in repeatedsigmoidoscopies. A brief discussion on tumor embolism and management of this case is also included.
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Endoscopic Findings in Patients Under the Age of 40 Years with Hematochezia in Singapore
Man Hon Tang,Fung Joon Foo,Chee Yung Ng 대한소화기내시경학회 2020 Clinical Endoscopy Vol.53 No.4
Background/Aims: Sigmoidoscopy is performed in most medical centers to evaluate the distal colons of young adults presentingwith hematochezia who are at risk of developing proximal lesions. Colonoscopies offer more complete evaluations but are associatedwith a higher incidence of complications and possible low yield. Methods: An analysis was conducted on colonoscopies performed in our center on patients 40 years of age or younger. The studypopulation was sub-divided into 2 age groups for analysis: <30 years of age and 30–39 years of age. Results: We recruited 453 patients for the study. Patients were 115 and 338 individuals that were <30 and 30–39 years of age,respectively. Hemorrhoids was identified as the cause of bleeding in the majority of cases. The overall incidence of polyps was 6.5%;this was significantly higher in the 30–39 age group (7.4% vs. 1.7%, p=0.026). There were two cases of advanced/malignant polyps. While the majority of the polyps were in the distal colon, 28% of the polyps in the older age group were found in the proximal colon. There was one case of colonic perforation. Conclusions: Colonic polyps are more prevalent in patients aged 30–39. Colonoscopies should be considered for patients over theage of 30 with rectal bleeding.
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Surgical Management of Intestinal Obstruction from Phytobezoar
Man Hon Tang,Gregory Heng 대한외상중환자외과학회 2019 Journal of Acute Care Surgery Vol.9 No.2
Purpose: Phytobezoar is the most common type of bezoar, which can occasionally present as an intestinal obstruction. In this study, the surgical experience and outcome in the management of intestinal obstruction caused by bezoars are described. Methods: A retrospective analysis of all operative cases of bezoars (n = 36) at Khoo Tech Puat hospital between 2011–2017 was performed. Patient demographics, imaging and operative findings, characteristics of bezoars and related morbidities were analyzed. The study population was subdivided into 2 groups based on operative intervention (fragmentation and milking of bezoars, versus enterotomy and/or bowel resection). Results: There were 36 cases of bezoars in 35 patients that were included in this study. Computed tomography scans were diagnostic of bezoars in 27 cases (75%). There were 20 cases (55.6%) that underwent fragmentation and milking of bezoars. The remaining 16 cases (44.4%) required an enterotomy or bowel resection. Bezoars that required enterotomy / bowel resection were more likely to be distally located in the ileum (75% vs 40%, p = 0.01), larger in volume (86.5 mL vs 63 mL, p = 0.04), with significant increase in morbidity rates (43.8% vs 5%, p < 0.01) compared with all other cases of bezoars. Conclusion: Risk factors for enterotomy / bowel resection in bezoar bowel obstruction include, nondiagnostic computed tomography scans, distally located, and larger volumes of bezoars. Fragmentation and milking should be attempted first as it has lower morbidity rates than enterotomy / bowel resection surgery.
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