1.Endoscopic cyclophotocoagulation:an overview and Asian perspective
E-Shawn, GOH ; Boon Ang LIM ; Leonard YIP
International Eye Science 2008;8(9):1756-1760
Su rgical treatment of glaucoma has been classified as cyclodestructive(reducing inflow)or filtering(increasing outflow).Cyclodestructive procedures have traditionally been reserved for eyes with poor visual prognoses and refractory glaucomas including post-trauma,aphakia,congenital and developmental glaucoma.Since Uram described the first use of endoscopic cyclophotocoa gulation(ECP)in 1992,short and long-term outcomes for ECP have been promising.In the present article,we conduct a Pubmed search and review of published English Iiterature on endoscopic cyclophotocoagulation and comparison with limited results in a single Singapore ophthalmic tertiary hospital.Safety and efficacy of ECP and combined phacoemulsification-ECP procedures in treatment of pediatric and adult glaucomas of various etiologies and severities is reported.Local short-term unpublished results from a single Singapore tertiary ophthalmic service is reported and concurs with previously published results.Published reports and current experience with ECP has demonstrated that ECP with direct visualization of the target tissues avoids the complications associated with blind'trans-scleral cyclophotocoagulation by applying optimum energy to target tissue ciliary epithelium with endoscopic visualization and infrared laser wavelength application.Significant financial barriers exist to introducing this service.It is safe and effective in controlling IOP and reducing reliance on anti-glaucoma medications.Wide spread acceptance and use of this technique awaits large scale randomized controlled studies.
2.Academy of Medicine, Singapore clinical guideline on the use of sedation by non-anaesthesiologists during gastrointestinal endoscopy in the hospital setting.
Tiing Leong ANG ; Edwin SEET ; Yaw Chong GOH ; Wee Khoon NG ; Calvin Jianyi KOH ; Hock Foong LUI ; James Weiquan LI ; Aung Myint OO ; Kieron Boon Leng LIM ; Kok Sun HO ; Min Hoe CHEW ; Wai Leong QUAN ; Damien Meng Yew TAN ; Kheng Hong NG ; Hak Su GOH ; Wai Kit CHEONG ; Philip TSENG ; Khoon Lin LING
Annals of the Academy of Medicine, Singapore 2022;51(1):24-39
INTRODUCTION:
In Singapore, non-anaesthesiologists generally administer sedation during gastrointestinal endoscopy. The drugs used for sedation in hospital endoscopy centres now include propofol in addition to benzodiazepines and opiates. The requirements for peri-procedural monitoring and discharge protocols have also evolved. There is a need to develop an evidence-based clinical guideline on the safe and effective use of sedation by non-anaesthesiologists during gastrointestinal endoscopy in the hospital setting.
METHODS:
The Academy of Medicine, Singapore appointed an expert workgroup comprising 18 gastroenterologists, general surgeons and anaesthesiologists to develop guidelines on the use of sedation during gastrointestinal endoscopy. The workgroup formulated clinical questions related to different aspects of endoscopic sedation, conducted a relevant literature search, adopted Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology and developed recommendations by consensus using a modified Delphi process.
RESULTS:
The workgroup made 16 recommendations encompassing 7 areas: (1) purpose of sedation, benefits and disadvantages of sedation during gastrointestinal endoscopy; (2) pre-procedural assessment, preparation and consent taking for sedation; (3) Efficacy and safety of drugs used in sedation; (4) the role of anaesthesiologist administered sedation during gastrointestinal endoscopy; (5) performance of sedation; (6) post-sedation care and discharge after sedation; and (7) training in sedation for gastrointestinal endoscopy for non-anaesthesiologists.
CONCLUSION
These recommendations serve to guide clinical practice during sedation for gastrointestinal endoscopy by non-anaesthesiologists in the hospital setting.
Conscious Sedation
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Endoscopy, Gastrointestinal
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Hospitals
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Humans
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Hypnotics and Sedatives
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Singapore
3.Colonic stenting in acute malignant large bowel obstruction: audit of efficacy and safety in a Singapore tertiary referral centre.
James Weiquan LI ; James Chi-Yong NGU ; Kok Ren LIM ; Shu Wen TAY ; Bochao JIANG ; Ramesh WIJAYA ; Sulaiman YUSOF ; Calvin Jianming ONG ; Andrew Boon EU KWEK ; Tiing Leong ANG
Singapore medical journal 2023;64(10):603-608
INTRODUCTION:
Acute malignant large bowel obstruction (MBO) occurs in 8%-15% of colorectal cancer patients. Self-expandable metal stents (SEMS) have progressed from a palliative modality to use as bridge to surgery (BTS). We aimed to assess the safety and efficacy of SEMS for MBO in our institution.
METHODS:
The data of patients undergoing SEMS insertion for MBO were reviewed. Technical success was defined as successful SEMS deployment across tumour without complications. Clinical success was defined as colonic decompression without requiring further surgical intervention. Rates of complications, median time to surgery, types of surgery and rates of recurrence were studied.
RESULTS:
Seventy-nine patients underwent emergent SEMS placement from September 2013 to February 2020. Their mean age was 68.8 ± 13.8 years and 43 (54%) patients were male. Mean tumour length was 4.2 cm ± 2.2 cm; 89.9% of malignant strictures were located distal to the splenic flexure. Technical and clinical success was 94.9% and 98.7%, respectively. Perforation occurred in 5.1% of patients, with none having stent migration or bleeding. Fifty (63.3%) patients underwent SEMS insertion as BTS. Median time to surgery was 20 (range 6-57) days. Most (82%) patients underwent minimally invasive surgery. Primary anastomosis rate was 98%. Thirty-nine patients had follow-up beyond 1-year posttreatment (median 34 months). Local recurrence and distant metastasis were observed in 4 (10.3%) and 5 (12.8%) patients, respectively.
CONCLUSION
Insertion of SEMS for acute MBO has high success rates and a good safety profile. Most patients in this audit underwent minimally invasive surgery and primary anastomosis after successful BTS.
Humans
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Male
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Middle Aged
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Aged
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Aged, 80 and over
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Female
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Colorectal Neoplasms/pathology*
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Singapore
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Tertiary Care Centers
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Stents/adverse effects*
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Intestinal Obstruction/etiology*
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Treatment Outcome
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Retrospective Studies
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Palliative Care
4.Chapter of Gastroenterologists professional guidance for management of patients with liver disease in Singapore during the COVID-19 pandemic.
Jason Pik Eu CHANG ; Yu Jun WONG ; Wei Lyn YANG ; Kieron Boon Leng LIM ; Poh Seng TAN ; Gim Hin HO ; Benjamin Cherng Hann YIP ; James Weiquan LI ; Chern Hao CHONG ; David Eng Hui ONG ; Tju Siang CHUA ; Charles Kien Fong VU ; Kok Ann GWEE ; Tiing Leong ANG ; Chee Kiat TAN
Singapore medical journal 2020;61(12):619-623
In this paper, we aim to provide professional guidance to clinicians who are managing patients with chronic liver disease during the current coronavirus disease 2019 (COVID-19) pandemic in Singapore. We reviewed and summarised the available relevant published data on liver disease in COVID-19 and the advisory statements that were issued by major professional bodies, such as the American Association for the Study of Liver Diseases and European Association for the Study of the Liver, contextualising the recommendations to our local situation.
COVID-19/epidemiology*
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Carcinoma, Hepatocellular/therapy*
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Chronic Disease
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Hepatitis B, Chronic/therapy*
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Hepatitis C, Chronic/therapy*
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Humans
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Liver Cirrhosis/therapy*
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Liver Diseases/therapy*
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Liver Neoplasms/therapy*
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Liver Transplantation
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Singapore/epidemiology*