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Portal venous gas and thrombosis in a Chinese patient with fulminant Crohn’s colitis: A case report with literature review

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World Journal of Gastroenterology 2006年第34期12卷 5582-5586页

作者： Simon siu-Man Ng Raymond Ying-Chang Yiu Janet fung-Yee Lee Jimmy Chak-Man Li Ka-Lau Leung Department of Surgery The Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong SAR China

Ever since its earliest reports, portal venous gas (PVG) has been associated with numerous intraabdominal catastrophes and has served as an indication for urgent surgical exploration. It is traditionally regarded to be an ominous finding of impending death, with highest mortality reported in patients with underlying bowel ischemia. Today, computed tomography has demonstrated a wider range of clinical conditions associated with PVG, some of which are ‘benign’ and do not necessarily require surgery, unless when there are signs of intraabdominal catastrophe or systemic toxicity. One of these ‘benign’ conditions is Crohn’s disease. The present report describes a 19-year-old Chinese boy with Crohn’s pancolitis who presented with septic shock associated with PVG and portal vein thrombosis, and was successfully managed surgically. To our knowledge, this is the fi rst report of PVG and portal vein thrombosis associated with Crohn’s disease in a Chinese patient. In addition, we have also reviewed the reports of another 18 Crohn’s patients with PVG previously described in the English literature. Specifi c predisposing factors for PVG were identified in 8 patients, including barium enema, colonoscopy, blunt abdominal trauma, and enterovenous f istula. The patients who developed PVG following barium enema and blunt trauma were all asymptomatic and no specifi c treatment was necessary. Eleven patients (58%) who presented with signs of intraabdominal catastrophe or systemic toxicity required either immediate or eventual surgery. The overall mortality rate among the 19 patients was only 11%. The present literature review has shown that the f inding of PVG associated with Crohn’ s disease does not always mandate surgical intervention. It is the clinical features and the related complications that ultimately determine the treatment approaches. The overall outcome of PVG associated with Crohn’s disease has been favourable.

关键词： Portal venous gas Portal vein thrombosis Pylephlebitis Crohn's disease Chinese

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Hepatic venous outflow obstruction after piggyback liver transplantation by an unusual mechanism:Report of a case

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World Journal of Gastroenterology 2006年第33期12卷 5416-5418页

作者： Simon siu-Man Ng Simon Chun-Ho Yu Janet fung-Yee Lee Paul Bo-San Lai Wan-Yee Lau Departments of Surgery and Diagnostic Radiology & Organ Imaging Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong China

Hepatic venous outflow obstruction after piggyback liver transplantation is a very rare complication. An unusual mechanism aggravating it is reported. A 33-year-old man with end-stage hepatitis B liver cirrhosis underwent a piggyback orthotopic liver transplantation using a full-size cadaveric graft. Two months after transplantation, he developed gross ascites refractory to maximal diuretic therapy. Doppler ultrasound showed patent portal and hepatic veins. Serial computed tomography scans revealed a hypoperfused right posterior segment of the liver which subsequently underwent atrophy. Hepatic venography demonstrated a high-grade stenosis with an element of torsion of venous drainage at the anastomosis. The stenosis was successfully treated with repeated percutaneous balloon angioplasty. The patient remained asymptomatic six months afterwards with complete resolution of ascites and peripheral edema. We postulate that liver allograft segmental hypoperfusion and atrophy may aggravate or result in a hepatic venous outflow problem by the mechanism of torsion effect. Percutaneous balloon angioplasty is a safe and effective treatment modality for anastomotic stenosis.

关键词： Hepatic venous outflow obstruction Piggyback Liver transplantation Percutaneous balloon angioplasty

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Visible Light Photocatalysis of Carbon-Carbon σ-Bond Anaerobic Oxidation of Ketones with Water by Rhodium and Cobalt Porphyrins

Visible Light Photocatalysis of Carbon-Carbon σ-Bond Anaero...

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中国化学会第十三届全国有机合成化学学术研讨会

作者： siu Yin Lee Hong Sang fung Shiyu Feng Kin Shing Chan Department of Chemistry The Chinese University of Hong Kong

M（por）（M = Rh and Co）（por = porphyrinato dianion） reacted selectively with isopropyl ketones at the carbon（CO）-carbon（α） bond under room temperature to give high yields of M III（por） acyls and the corresponding oxidized carbonyl compounds up to 89 % ***（por）OH is proposed to be the C-C bond activation（CCA） *** stoichiometric reaction is further developed into the photocatalytic CCA both using UV and visible light sources（λ = 405 nm）.

关键词： Visible light photocatalysis Rhodium and Cobalt porphyrins anaerobic oxidation with water

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Prader-Willi Syndrome:16-Year Experience in Hong Kong

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Journal of Genetics and Genomics 2012年第4期39卷 191-194页

作者： Ivan F.M. Lo Ho Ming Luk luksite@*** Tony M.F. Tong Kent K.S. Lai Daniel H.C. Chan Albert C.F. lam David K.H. Chan Edgar W.L. Hau Connie O.Y. fung Stephen T.S. lam Clin Genet Serv Dept Hlth Kowloon Hong Kong Peoples R China

Prader-Willi syndrome （PWS） is an important, well-recognized syndromic form of neurodevelopmental disorder. The incidence is about 1 in 15,000-25,000 live births, and it affects both males and females （Vogels et al... 详细信息

关键词： PWS Prader-Willi Syndrome

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In situ TEM observation of nucleation and crystallization of nanoparticle in ceramic glasses

In situ TEM observation of nucleation and crystallization of...

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第二届全国光电材料与器件学术研讨会

作者： Ting Wang Xue Yu Jianbei Qiu siu fung Yu Xuhui Xu College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology College of Materials Science and Engineering Kunming University of Science and Technology Department of Applied Physics The Hong Kong Polytechnic University

Direct nucleates to a new thermodynamic phase and multiple-step nucleation via metastable intermediates are the contradictory mechanisms to explain the nucleation process of *** observation of their coexistence further confuses our understanding on the growth kinetics of ***,we perform real-time in situ transmission electron microscopy imaging of ZnO,Ba LaF,and Ag nanocrystals growth in the amorphous *** to the slow nucleation rate in the amorphous glass,the amorphous-to-crystalline phase transition of all the nanocrystals can be captured in *** a result,we reveal the missing puzzle of the nucleation kinetics-the heterogeneous crystallization occurs initially at the interface of the amorphous *** discovery resolves the inconsistency between the classical and non-classical nucleation theory and the uncertainties of the nanocrystal formation observed recently.

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Delayed diagnosis of 22q11.2 deletion syndrome in an adult Chinese lady

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Chinese Medical Journal 2012年第16期125卷 2945-2947页

作者： SHEA Yat-fung LEE Chi-ho Harinder Gill CHOW Wing-sun lam Yui-ming LUK Ho-ming lam Stephen Tak-sum CHU Leung-wing Department of Medicine Queen Mary Hospital the University ofHong Kong Hong Kong China Clinical Genetic Service Department of Health The Government of Hong Kong Special Administrative Region Hong Kong China

We report a 32 year-old Chinese lady with history of tetralogy of Fallot, presented to us with chest pain due to hypocalcemia secondary to hypoparathyroidism. With her dysmerphic facial features and intellectual disability 22q11.2 deletion was suspected and confirmed by genetic study. Clinicians should consider the diagnosis of DiGeorge syndrome in adult patient with past medical history of congenital heart disease, facial dysmorphism, intellectual disability and primary hypoparathyroidism.

关键词： hypocalcemia DiGeorge syndrome adult

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A prospective cohort of men with localized prostate cancer on active surveillance protocol in Hong Kong,China:what did we learn?

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Asian Journal of Andrology 2024年第3期26卷 245-249页

作者： Xiaobo Wu Ivan Ching-Ho Ko Cindy Yeuk-lam Hong Samuel Chi-Hang Yee Jeremy Yuen-Chun Teoh Samson Yun-Sang Chan Ho-Man Tam Chi-Kwok Chan Chi-Fai Ng Peter Ka-fung Chiu SH Ho Urology Centre Department of SurgeryFaculty of MedicineThe Chinese University of Hong KongHong KongChina

This study aimed to report the outcomes of active surveillance(AS)in the management of low-risk prostate cancer(PCa).It recruited87 men who were prospectively followed up according to the Prostate Cancer Research International Active Surveillance(PRIAS)protocol with local adaptation at SH Ho Urology Centre,Prince of Wales Hospital,Hong Kong,*** investigated the predictorsof disease progression and found that baseline prostate-specific antigen density(PSAD)and the presence of the highest ProstateImaging-Reporting and Data System(PI-RADS)score 5 lesion on magnetic resonance imaging(MRI)are significantly correlatedwith disease ***,men with PSAD>0.2 ng ml^(−2)or PI-RADS 4 or 5 lesions had significantly worse upgradingfree survival compared to those with PSAD≤0.2 ng ml−2 and PI-RADS 2 or 3 *** study concludes that AS is a safe andeffective management strategy for selected patients to defer radical treatment and that most disease progression can be detectedafter the first repeated *** combination of PSAD>0.2 ng ml^(−2)and PI-RADS 4 or 5 lesions may serve as a useful predictorof early disease progression and provide a guide to optimize follow-up protocols for men in different risk groups.

关键词： active surveillance cohort localized prostate cancer

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Telerobotic-assisted laparoscopic abdominoperineal resection for low rectal cancer: Report of the first case in Hong Kong and China with an updated literature review

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World Journal of Gastroenterology 2007年第17期13卷 2514-2518页

作者： Simon siu-Man Ng Janet fung-Yee Lee Raymond Ying-Chang Yiu Jimmy Chak-Man Li Sophie Sok-Fei Hon Department of Surgery The Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong SAR China

Telerobotic surgery is the most advanced development in the field of minimally invasive surgery. The da Vinci surgical system, which is currently the most widely used telerobotic device, was approved by the Food and Drug Administration of the United States of America for clinical use in all abdominal operations in July 2000. The first da Vinci surgical system in China was installed in November 2005 at our institution. We herein report the first telerobotic-assisted laparoscopic abdominoperineal resection using the 3-arm da Vinci surgical system for low rectal cancer in Hong Kong and China, which was performed in August 2006. The operative time and blood loss were 240 min and 200 mL, respectively. There was no complication, and the patient was discharged on postoperative day five. An updated review of published literature on telerobotic-assisted colorectal surgery is included in this report, with special emphasis on its advantages and limitations.

关键词： Telerobotic-assisted surgery da Vinci Colorectal surgery Abdominoperineal resection China

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三角洲海岸土地利用侵蚀暴露度分析及其空间规划意义--以上海浦东新区为例

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华东师范大学学报（自然科学版） 2023年第3期 181-193页

作者：王晓婷栾华龙张卫国 lam Nina siu-Ngan 华东师范大学河口海岸学国家重点实验室上海200241 长江水利委员会长江科学院武汉430010 路易斯安那州立大学海岸与环境学院环境科学系路易斯安那州巴吞鲁日70803美国

受全球变暖背景下的海平面上升及流域减沙的影响,全球三角洲海岸侵蚀灾害风险加大.评估三角洲地貌未来变化及其侵蚀脆弱性,并分析海岸土地利用的暴露度,对海岸带国土空间规划、防灾减灾和社会经济可持续发展具有重要意义.本研究以位于... 详细信息

受全球变暖背景下的海平面上升及流域减沙的影响,全球三角洲海岸侵蚀灾害风险加大.评估三角洲地貌未来变化及其侵蚀脆弱性,并分析海岸土地利用的暴露度,对海岸带国土空间规划、防灾减灾和社会经济可持续发展具有重要意义.本研究以位于长江三角洲海岸的上海浦东新区为例,以2016年河口地形、2019年海岸土地利用为基础,结合2035年河流来沙1.25亿t/a、海平面累计上升16.5 cm情景下的河口地貌模拟以及浦东新区2035年规划,评估了当前和2035年海岸侵蚀脆弱性及土地利用价值的暴露度,进而提出国土空间规划的建议.研究结果表明,近千年以来的地貌演变格局决定了海岸侵蚀脆弱性的基本空间格局,以土地利用暴露度与海岸侵蚀脆弱性等级为指标,两者具有高和极高等级的岸段目前长度为32.3 km,占浦东新区海岸长度的31.1%;随着未来流域减沙以及浦东新区的发展,2035年其长度增加至47.5 km,比例升高为45.8%.2035年,浦东机场及杭州湾北岸芦潮港区域侵蚀脆弱性等级增加,根据现有规划,这两个区域是航空枢纽和南汇新城建设的核心区域,其土地利用暴露度等级也将增加,在规划的实施过程中需要加强上述区域监测和侵蚀防护.本研究所提出的方法,可为其他海岸地区的侵蚀灾害暴露度评估和国土空间规划制定提供参考.

关键词：海岸侵蚀土地利用暴露度空间规划浦东新区长江三角洲

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肢体无力的男性患者一例

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英国医学杂志中文版 2021年第1期24卷 59-60页

作者： Shing fung Lee Pui lam Yip Frank Chi Sing Wong 毛晨晖(译) Department of Clinical Oncology Tuen Mun HospitalNew Territory West Cluster Hospital AuthorityHong Kong 中国医学科学院北京协和医院神经科

58岁男性,以进行性右侧肢体无力和头痛一周就诊。他每周饮酒约7个单位,20年前戒烟(既往吸烟10包/年)。近期无头外伤史,未服用药物或毒品。神志清楚,无发热、体重下降或盗汗等症状。体格检查一般情况好,无发热,无脑膜炎体征或视乳头水肿... 详细信息

58岁男性,以进行性右侧肢体无力和头痛一周就诊。他每周饮酒约7个单位,20年前戒烟(既往吸烟10包/年)。近期无头外伤史,未服用药物或毒品。神志清楚,无发热、体重下降或盗汗等症状。体格检查一般情况好,无发热,无脑膜炎体征或视乳头水肿,右侧上下肢肌力4级,左侧肌力5级1。血常规、肝功能、电解质、C反应蛋白正常。颅脑钆增强磁共振成像(MRI)如图所示(图1)。

关键词：下肢肌力视乳头水肿 C反应蛋白体格检查脑膜炎体重下降外伤史血常规

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