1.The impact of short-course total neoadjuvant therapy, long-course chemoradiotherapy, and upfront surgery on the technical difficulty of total mesorectal excision: an observational study with an intraoperative perspective
Cheryl Xi-Zi CHONG ; Frederick H. KOH ; Hui-Lin TAN ; Sharmini Su SIVARAJAH ; Jia-Lin NG ; Leonard Ming-Li HO ; Darius Kang-Lie AW ; Wen-Hsin KOO ; Shuting HAN ; Si-Lin KOO ; Connie Siew-Poh YIP ; Fu-Qiang WANG ; Fung-Joon FOO ; Winson Jianhong TAN
Annals of Coloproctology 2024;40(5):451-458
Purpose:
Total neoadjuvant therapy (TNT) is becoming the standard of care for locally advanced rectal cancer. However, surgery is deferred for months after completion, which may lead to fibrosis and increased surgical difficulty. The aim of this study was to assess whether TNT (TNT-RAPIDO) is associated with increased difficulty of total mesorectal excision (TME) compared with long-course chemoradiotherapy (LCRT) and upfront surgery.
Methods:
Twelve laparoscopic videos of low anterior resection with TME for rectal cancer were prospectively collected from January 2020 to October 2021, with 4 videos in each arm. Seven colorectal surgeons assessed the videos independently, graded the difficulty of TME using a visual analog scale and attempted to identify which category the videos belonged to.
Results:
The median age was 67 years, and 10 patients were male. The median interval to surgery from radiotherapy was 13 weeks in the LCRT group and 24 weeks in the TNT-RAPIDO group. There was no significant difference in the visual analog scale for difficulty in TME between the 3 groups (LCRT, 3.2; TNT-RAPIDO, 4.6; upfront, 4.1; P=0.12). A subgroup analysis showed similar difficulty between groups (LCRT 3.2 vs. TNT-RAPIDO 4.6, P=0.05; TNT-RAPIDO 4.6 vs. upfront 4.1, P=0.54). During video assessments, surgeons correctly identified the prior treatment modality in 42% of the cases. TNT-RAPIDO videos had the highest recognition rate (71%), significantly outperforming both LCRT (29%) and upfront surgery (25%, P=0.01).
Conclusion
TNT does not appear to increase the surgical difficulty of TME.
2.Loss-of-Function Variant in the SMPD1 Gene in Progressive Supranuclear Palsy-Richardson Syndrome Patients of Chinese Ancestry
Shen-Yang LIM ; Ai Huey TAN ; Jia Nee FOO ; Yi Jayne TAN ; Elaine GY CHEW ; Azlina Ahmad ANNUAR ; Alfand Marl Dy CLOSAS ; Azalea PAJO ; Jia Lun LIM ; Yi Wen TAY ; Anis NADHIRAH ; Jia Wei HOR ; Tzi Shin TOH ; Lei Cheng LIT ; Jannah ZULKEFLI ; Su Juen NGIM ; Weng Khong LIM ; Huw R. MORRIS ; Eng-King TAN ; Adeline SL NG
Journal of Movement Disorders 2024;17(2):213-217
Lysosomal dysfunction plays an important role in neurodegenerative diseases, including Parkinson’s disease (PD) and possibly Parkinson-plus syndromes such as progressive supranuclear palsy (PSP). This role is exemplified by the involvement of variants in the GBA1 gene, which results in a deficiency of the lysosomal enzyme glucocerebrosidase and is the most frequently identified genetic factor underlying PD worldwide. Pathogenic variants in the SMPD1 gene are a recessive cause of Niemann–Pick disease types A and B. Here, we provide the first report on an association between a loss-of-function variant in the SMPD1 gene present in a heterozygous state (p.Pro332Arg/p.P332R, which is known to result in reduced lysosomal acid sphingomyelinase activity), with PSP-Richardson syndrome in three unrelated patients of Chinese ancestry.
3.Perioperative emergency laparotomy pathway for patients undergoing emergency laparotomy: A propensity score matched study.
Joel Wen Liang LAU ; Janardhan BALIGA ; Faheem KHAN ; Ying Xin TEO ; Jonathan Ming Jie YEO ; Vincent Zhiwei YEOW ; Christine Xia WU ; Stephanie TEO ; Tracy Jia Hui GOH ; Philip IAU
Annals of the Academy of Medicine, Singapore 2024;53(12):713-723
INTRODUCTION:
Emergency laparotomy (EL) is associated with high morbidity and mortality, often exceeding 10%. This study evaluated the impact of the EMergency Laparotomy Audit (EMLA) interdisciplinary perioperative pathway on patient outcomes, hospital costs and length of stay (LOS) within a single centre.
METHOD:
A prospective cohort study was conducted from August 2020 to July 2023. The intervention team included specialist clinicians, hospital administrators and an in-hospital quality improvement team. Patients who underwent EL were divided into a pre-intervention control group (n=136) and a post-intervention group (n=293), and an 8-item bundle was implemented. Propensity scoring with a 1:1 matching method was utilised to reduce confounding and selection bias. The primary outcomes examined were LOS, hospitalis-ation costs and surgical morbidity, while secondary outcomes included 30-day mortality and adherence to the intervention protocol.
RESULTS:
The utilisation of the EMLA perioperative care bundle led to a significant reduction in surgical complications (34.8% to 20.6%, P<0.01), a decrease in LOS by 3.3 days (15.4 to 12.1 days, P=0.03) and lower hospitalisation costs (SGD 40,160 to 30,948, P=0.04). Compliance with key interventions also showed improvement. However, there was no difference in 30-day mortality.
CONCLUSION
This study offers insights on how surgical units can implement systemic perioperative changes to improve outcomes for patients undergoing emergency laparotomy.
Humans
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Laparotomy/methods*
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Propensity Score
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Female
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Male
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Prospective Studies
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Length of Stay/statistics & numerical data*
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Middle Aged
;
Hospital Costs/statistics & numerical data*
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Postoperative Complications/epidemiology*
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Aged
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Emergencies
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Perioperative Care/methods*
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Critical Pathways
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Singapore
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Adult
4.Oral Presentation – Clinical and Translational Research
Choon Hoong Chung ; Yee Lynn Soh ; Thinaesh Manoharan ; Arwind Raj ; Dulmini Perera ; Htoo Htoo Kyaw Soe ; Nan Nitra Than ; Lilija Bancevica ; Žanna Kovalova ; Dzintars Ozols ; Ksenija Soldatenkova ; Lim Pyae Ying ; Tay Siow Phing ; Wong Jin Shyan ; Andrew Steven Sinsoon ; Nursabrina Alya Ricky Ramsis ; Nina Azwina Kimri ; Henry Rantai Gudum ; Man Le Ng ; Sze Er Lim ; Hui Yu Kim ; Yee Wan Lee ; Soo Kun Lim ; Sharven Raj ; Mohd Nasir Mohd Desa ; Nurul Syazrah Anuar ; Nurshahira Sulaiman ; Hui Chin Ting ; Zhi Ling Loo ; Choey Yee Lew ; Alfand Marl F Dy Closas ; Tzi Shin Toh ; Jia Wei Hor ; Yi Wen Tay ; Jia Lun Lim ; Lu Yian Tan ; Jie Ping Schee ; Lei Cheng Lit ; Ai Huey Tan ; Shen Yang Lim ; Zhu Shi Wong ; Nur Raziana binti Rozi ; Soo Kun Lim
International e-Journal of Science, Medicine and Education 2022;16(Suppl1):7-14
5.EPOSTER • DRUG DISCOVERY AND DEVELOPMENT
Marwan Ibrahim ; Olivier D LaFlamme ; Turgay Akay ; Julia Barczuk ; Wioletta Rozpedek-Kaminska ; Grzegorz Galita ; Natalia Siwecka ; Ireneusz Majsterek ; Sharmni Vishnu K. ; Thin Thin Wi ; Saint Nway Aye ; Arun Kumar ; Grace Devadason ; Fatin Aqilah Binti Ishak ; Goh Jia Shen ; Dhaniya A/P Subramaniam ; Hiew Ke Wei ; Hong Yan Ren ; Sivalingam Nalliah ; Nikitha Lalindri Mareena Senaratne ; Chong Chun Wie ; Divya Gopinath ; Pang Yi Xuan ; Mohamed Ismath Fathima Fahumida ; Muhammad Imran Bin Al Nazir Hussain ; Nethmi Thathsarani Jayathilake ; Sujata Khobragade ; Htoo Htoo Kyaw Soe ; Soe Moe ; Mila Nu Nu Htay ; Rosamund Koo ; Tan Wai Yee ; Wong Zi Qin ; Lau Kai Yee ; Ali Haider Mohammed ; Ali Blebil ; Juman Dujaili ; Alicia Yu Tian Tan ; Cheryl Yan Yen Ng ; Ching Xin Ni ; Michelle Ng Yeen Tan ; Kokila A/P Thiagarajah ; Justin Jing Cherg Chong ; Yong Khai Pang ; Pei Wern Hue ; Raksaini Sivasubramaniam ; Fathimath Hadhima ; Jun Jean Ong ; Matthew Joseph Manavalan ; Reyna Rehan ; Tularama Naidu ; Hansi Amarasinghe ; Minosh Kumar ; Sdney Jia Eer Tew ; Yee Sin Chong ; Yi Ting Sim ; Qi Xuan Ng ; Wei Jin Wong ; Shaun Wen Huey Lee ; Ronald Fook Seng Lee ; Wei Ni Tay ; Yi Tan ; Wai Yew Yang ; Shu Hwa Ong ; Yee Siew Lim ; Siddique Abu Nowajish ; Zobaidul Amin ; Umajeyam Anbarasan ; Lim Kean Ghee ; John Pinto ; Quek Jia Hui ; Ching Xiu Wei ; Dominic Lim Tao Ran ; Philip George ; Chandramani Thuraisingham ; Tan Kok Joon ; Wong Zhi Hang ; Freya Tang Sin Wei ; Ho Ket Li ; Shu Shuen Yee ; Goon Month Lim ; Wen Tien Tan ; Sin Wei Tang
International e-Journal of Science, Medicine and Education 2022;16(Suppl1):21-37
6.SingHealth Radiology Archives pictorial essay Part 2: gastroenterology, musculoskeletal, and obstetrics and gynaecology cases.
Mark Bangwei TAN ; Kim Ping TAN ; Joey Chan Yiing BEH ; Eugenie Yi Kar CHAN ; Kenneth Fu Wen CHIN ; Zong Yi CHIN ; Wei Ming CHUA ; Aaron Wei-Loong CHONG ; Gary Tianyu GU ; Wenlu HOU ; Anna Chooi Yan LAI ; Rebekah Zhuyi LEE ; Perry Jia Ren LIEW ; May Yi Shan LIM ; Joshua Li Liang LIM ; Zehao TAN ; Eelin TAN ; Grace Siew Lim TAN ; Timothy Shao Ern TAN ; Eu Jin TAN ; Alexander Sheng Ming TAN ; Yet Yen YAN ; Winston Eng Hoe LIM
Singapore medical journal 2021;62(1):8-15
The Singapore Health Services cluster (SingHealth) radiology film archives are a valuable repository of local radiological cases dating back to the 1950s. Some of the cases in the archives are of historical medical interest, i.e. cerebral angiography in the workup of patients with hemiplegia. Other cases are of historical social interest, being conditions seen during earlier stages of Singapore's development, i.e. bound feet. The archives form a unique portal into the development of local radiology as well as the national development of Singapore. A selection from the archives is published in commemoration of the International Day of Radiology in 2020, as well as the 200th anniversary of the Singapore General Hospital in 2021. This pictorial essay comprises gastroenterology, musculoskeletal and obstetrics and gynaecology cases from the archives.
7.SingHealth Radiology Archives pictorial essay Part 1: cardiovascular, respiratory and neurological cases.
Mark Bangwei TAN ; Kim Ping TAN ; Joey Chan Yiing BEH ; Eugenie Yi Kar CHAN ; Kenneth Fu Wen CHIN ; Zong Yi CHIN ; Wei Ming CHUA ; Aaron Wei-Loong CHONG ; Gary Tianyu GU ; Wenlu HOU ; Anna Chooi Yan LAI ; Rebekah Zhuyi LEE ; Perry Jia Ren LIEW ; May Yi Shan LIM ; Joshua Li Liang LIM ; Zehao TAN ; Eelin TAN ; Grace Siew Lim TAN ; Timothy Shao Ern TAN ; Eu Jin TAN ; Alexander Sheng Ming TAN ; Yet Yen YAN ; Winston Eng Hoe LIM
Singapore medical journal 2020;61(12):633-640
The Singapore Health Services cluster (SingHealth) radiology film archives are a valuable repository of local radiological cases dating back to the 1950s. Some of the cases in the archives are of historical medical interest, i.e. cerebral angiography in the workup of patients with hemiplegia. Other cases are of historical social interest, being conditions seen during earlier stages of Singapore's development, i.e. bound feet. The archives form a unique portal into the development of local radiology as well as the national development of Singapore. A selection from the archives is published in 2020 in commemoration of the 20th anniversary of the formation of SingHealth, the 55th National Day of Singapore, and the 125th anniversary of the International Day of Radiology. This pictorial essay comprises cardiovascular, respiratory and neurological cases from the archives.
8.Body mass index and the risk of postoperative cerebrospinal fluid leak following transsphenoidal surgery in an Asian population.
Ira SUN ; Jia Xu LIM ; Chun Peng GOH ; Shiong Wen LOW ; Ramez W KIROLLOS ; Chuen Seng TAN ; Sein LWIN ; Tseng Tsai YEO
Singapore medical journal 2018;59(5):257-263
INTRODUCTIONPostoperative cerebrospinal fluid (CSF) leak is a serious complication following transsphenoidal surgery for which elevated body mass index (BMI) has been implicated as a risk factor, albeit only in two recent North American studies. Given the paucity of evidence, we sought to determine if this association holds true in an Asian population, where the BMI criteria for obesity differ from the international standard.
METHODSA retrospective study of 119 patients who underwent 123 transsphenoidal procedures for sellar lesions between May 2000 and May 2012 was conducted. Univariate and multivariate logistic regression analyses were performed to investigate the impact of elevated BMI and other risk factors on postoperative CSF leak.
RESULTS10 (8.1%) procedures in ten patients were complicated by postoperative CSF leak. The median BMI of patients with postoperative leak following transsphenoidal procedures was significantly higher than that of patients without postoperative CSF leak (27.0 kg/m vs. 24.6 kg/m; p = 0.018). Patients categorised as either moderate or high risk under the Asian BMI classification were more likely to suffer from a postoperative leak (p = 0.030). Repeat procedures were also found to be significantly associated with postoperative CSF leak (p = 0.041).
CONCLUSIONElevated BMI is predictive of postoperative CSF leak following transsphenoidal procedures, even in an Asian population, where the definition of obesity differs from international standards. Thus, BMI should be considered in the clinical decision-making process prior to such procedures.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anthropometry ; Asian Continental Ancestry Group ; Body Mass Index ; Body Weight ; Cerebrospinal Fluid Leak ; diagnosis ; Cerebrospinal Fluid Rhinorrhea ; diagnosis ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Neurosurgical Procedures ; adverse effects ; Obesity ; classification ; Postoperative Complications ; Postoperative Period ; Regression Analysis ; Retrospective Studies ; Risk Factors ; Singapore ; Young Adult
9.Comparison between IQQA liver image analysis system and manu-traced approaches on liver volume estimation in living donor liver transplantation
Lin WEI ; Wen-tao NG JIA ; Wei GAO ; Tao YANG ; Zhi-gui ZENG ; Hao WANG ; Zhong-yang SHEN ; Zhi-jun ZHU
Chinese Journal of Organ Transplantation 2012;33(6):351-353
Objective To investigate the safty and accuracy ot estimating the living donor's graft volume with IQQA liver imaging evaluation system.Methods Between June 2007 and July 2010,123living liver donors were enrolled to undergo 16-slice CT scanning,then graft volume was estimated by both IQQA and manu-traced multi-slice spiral computed tomography (MSCT) approach.The graft volume and time consuming between IQQA and manu-traced MSCT were compared. Pearson Correlation test was uesd to verify the correlation between the estimated graft volume estimated each method and actual graft weight detected in operation.Linear correlation analysis was done.Results The mean graft volume by IQQA and manu-traced MSCT was (856.76 ± 162.18) and (870.64 ±172.54) cm3 respectively preoperation.Paired t-test showed there was no statistically significant difference between IQQA and MSCT methods (P>0.05).It took mean ( 16.9 ± 1.4) min to calculatethe graft volume by IQQA and (39.3 ± 2.1 ) min by manu-traced MSCT,respectively (P<0.05).The real graft volume was (632.59 ± 13 1.73) cm3.Pearson correlation test showed the graft volume calculated by either IQQA or MSCT method had a significantly positive correlation with the real graft weight (MSCT r =0.921,IQQA r =0.896,P<0.01 ).Graft weight could be expressed in the equation:Actual graft weight =- 150.303 + 1.025 × IQQA value or =- 94.397 + 0.955 × MSCT value.Conclusion IQQA system has same accuracy with MSCT method in predicting the graft volume but consuming less time.IQQA system promotes the recognition of clinician on liver three dimensional anatomic structure.
10.Multiple soft tissue defects of hand repaired by muliplefoliated tissue flap only pedicled by descending branch of lateral circumflex femoral artery
Wen-ya ZHANG ; Hui-guo WU ; Yu-xiang HU ; Dong-ning SONG ; Ya-fei HU ; Ke-luo NG JIA ; Ze-ang PAN ; Yun-feng WANG ; Bin-hui LI
Chinese Journal of Microsurgery 2011;34(4):280-282
ObjectiveTo introduction of perforator flaps,muscle flaps pedicled by descending branch of lateral circumflex femoral artery,method and their clinical application that multiple soft tissue defects of hand are repaire by muliplefoliated tissue flap only branch lateral circumflex femoral artery.MethodsFifteen patients with multiple soft tissue defects of hand were repaired muliplefoliated tissue flap only pedicled bydescending branch lateral circumflex femoral artery.At first,the anterolateral thigh perforator flap was designed and harvested according to the soft tissue defects of hand, then the descending branch lateral circumflex femoral artery was dissected at the same time the segmented perforator flap,fascia lata flap,rectus femoris muscle flap, vastus lateralis muscle flap, vastus intermedius muscle flap and distal spatium intermusculare flap were harvested in need according to distance among soft tissue defects.The muliplefoliated tissue flap was harvested only pedicled by descending branch lateral circumflex femoral artery, at last muscle flaps and fascia lata flaps were covered by skin graft, so the multiple soft tissue defects of hand were repaired in one time.ResultsNo vascular crisis happened. All skin grafts survived well, the contour of all repaired soft tissue defects was good and protective feeling was recovered by skin grafts of all flaps. All cases were got follow-up and the range was from 6 to 20 months(the average was 8.7 months).Wound of donor site healed well, muscle strength of quadriceps and motion of knee were normal. Three cases were excellent,nine cases were well and 3 cases were good, according to upper extremity function evaluation criteria of Chinese Medical Society for the Surgery of the Hand, the rate of good was 80 percent.ConclusionMultiple soft tissue defects of hand can be repaired by muliplefoliated flap only pedicled by descending branch of lateral circumflex femoral artery. Its advantages included reduction of operation time and treatment, good recovery of hand contour and function. It is a good method to repair multiple soft tissue defects of hand.


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