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Rajaram RB, Jayaraman T, Yoong BK, Koh PS, Loh PS, Koong JK, Khalil AA, Md Hashim NH, Jamaluddin FH, Mahadeva S. Non-alcoholic fatty liver disease and obesity among adult donors are major challenges to living donor liver transplantation: A single-centre experience. Asian J Surg 2021; 45:441-447. [PMID: 34384674 DOI: 10.1016/j.asjsur.2021.07.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/06/2021] [Accepted: 07/19/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Obesity and non-alcoholic fatty liver disease (NAFLD) are rampant in South East Asia. There is paucity of data exploring its' impact on donor suitability for living donor liver transplantation (LDLT). We aimed to describe and examine the factors related to non-utilization of potential donors in our LDLT programme. METHODS This is an analysis of prospectively collected data on potential donors for an adult LDLT programme, between January 2017 and December 2019. RESULTS Fifty-five donors for 33 potential recipients were evaluated. The mean age was 31.6 ± 8.5 years, 52.7% were female and the ethnic divisions were: Chinese (50.9%), Indian (25.5%) and Malay (23.6%). The mean body mass index (BMI) among potential donors was 25.1 ± 4.0 kg/m2; 25.5% of donors had normal BMI, 23.6% were overweight and 50.9% were obese. Using the CAP modality of Fibroscan®, we identified the following grades of hepatic steatosis: 36.6% S0, 19.5% S1, 2.4% S2 and 41.5% S3. The non-utilization rate of our donors was 74.5% (41/55) and the main reasons were significant hepatic steatosis and/or obesity. Compared to suitable donors, unsuitable donors had significantly greater mean BMI, mean CAP scores, higher rates of dyslipidaemia and NAFLD. CONCLUSION NAFLD and obesity represent major challenges to an emerging LDLT programme in Malaysia.
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Affiliation(s)
- Ruveena B Rajaram
- Department of Medicine, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Thevaraajan Jayaraman
- Gastroenterology Unit, Faculty of Medicine, Universiti Teknologi MARA, Selangor, Malaysia.
| | - Boon-Koon Yoong
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Peng-Soon Koh
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Pui San Loh
- Department of Anaesthesiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Jun-Kit Koong
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Alizan A Khalil
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Fadhil H Jamaluddin
- Department of Anaesthesiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sanjiv Mahadeva
- Department of Medicine, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
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Karuthan SR, Koh PS, Chinna K, Chan WK. Barcelona Clinic Liver Cancer and Hong Kong Liver Cancer staging systems for prediction of survival among Hepatocellular Carcinoma patients. Med J Malaysia 2021; 76:199-204. [PMID: 33742628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
INTRODUCTION We aimed to compare the Barcelona Clinic Liver Cancer (BCLC) and Hong Kong Liver Cancer (HKLC) staging systems. MATERIALS AND METHODS This is a retrospective study on patients with newly diagnosed hepatocellular carcinoma (HCC) at the University Malaya Medical Centre between 2011 and 2014. Survival times were analysed using the Kaplan- Meier procedure and comparison between groups was done using the log rank test. RESULTS The data of 190 patients was analysed. Chronic hepatitis B was the most common aetiology for HCC (43.7%), but a large proportion was cryptogenic or non-alcoholic steatohepatitis-related (41.6%). Only 11.1% were diagnosed early (BCLC Stage 0-A) while majority were diagnosed at an intermediate stage (BCLC Stage B, 53.7%). The median survival rate was significantly different between the different groups when either of the staging systems was used (p<0.05 for all comparisons). However, the two staging systems lacked agreement (weighted kappa 0.519, 95%CI: 0.449, 0.589) with significant difference in median survival rates between BCLC Stage A and HKLC Stage 2, and between BCLC Stage C and HKLC Stage 4. CONCLUSION Both staging systems were able to stratify patients according to survival, but they only had moderate agreement with significant differences observed in two groups of the staging systems.
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Affiliation(s)
- S R Karuthan
- University Malaya, Faculty of Medicine, Department of Medicine, Kuala Lumpur, Malaysia
| | - P S Koh
- University Malaya, Faculty of Surgery, Department of Medicine, Kuala Lumpur, Malaysia
| | - K Chinna
- Taylor's University, Faculty of Health and Medical Sciences, School of Medicine, Kuala Lumpur, Malaysia
| | - W K Chan
- University Malaya, Faculty of Medicine, Department of Medicine, Department of Medicine, Kuala Lumpur, Malaysia.
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Koh PS, Chan AC. Response to Wang et al. Re: How to choose and compare between radiofrequency ablation and transarterial chemoembolization for recurrent hepatocellular carcinoma? HPB (Oxford) 2017; 19:1133. [PMID: 28943394 DOI: 10.1016/j.hpb.2017.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 08/13/2017] [Indexed: 12/12/2022]
Affiliation(s)
- P S Koh
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
| | - A C Chan
- Department of Surgery, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
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Liong CC, Ravindran S, Gnana Kumar G, Chin EF, Koh PS, Chan WK. Enteropathy-associated T-cell lymphoma: An extremely rare cause of chronic diarrhoea. Med J Malaysia 2016; 71:88-90. [PMID: 27326953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chronic diarrhoea in tropical countries may be due to a myriad of causes from infective to non-infective. This case report illustrates the challenges faced in the investigation of a middle-age Chinese gentleman who presented with chronic diarrhoea and weight loss. The diagnosis of type II enteropathy-associated T-cell lymphoma (EATL) was finally made. The diagnosis of EATL was least suspected as the condition is almost unheard of in this part of the world. The epidemiology, presentation, diagnosis, management and prognosis of this rare condition are discussed.
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Affiliation(s)
- C C Liong
- University of Malaya, Faculty of Medicine, Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur, Malaysia.
| | - S Ravindran
- University of Malaya, Faculty of Medicine, Department of Pathology, Kuala Lumpur, Malaysia
| | - G Gnana Kumar
- University of Malaya, Faculty of Medicine, Department of Biomedical Imaging, Kuala Lumpur, Malaysia
| | - E F Chin
- University of Malaya, Faculty of Medicine, Department of Medicine, Hematology Unit, Kuala Lumpur, Malaysia
| | - P S Koh
- University of Malaya, Faculty of Medicine, Department of Surgery, Kuala Lumpur, Malaysia
| | - W K Chan
- University of Malaya, Faculty of Medicine, Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur, Malaysia
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Goh KL, Razlan H, Hartono JL, Qua CS, Yoong BK, Koh PS, Abdullah BJJ. Liver cancer in Malaysia: epidemiology and clinical presentation in a multiracial Asian population. J Dig Dis 2015; 16:152-8. [PMID: 25512092 DOI: 10.1111/1751-2980.12223] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is an important cancer in Malaysia. This study aimed to determine the epidemiological characteristics and clinical presentations of patients in a multiracial population consisting of three major Asian races: Malays, Chinese and Indians. METHODS Consecutive patients with HCC were prospectively studied from 2006 to 2009. HCC was diagnosed principally on multiphasic computed tomography and magnetic resonance imaging scans of the liver. The tumor was staged according to the Barcelona Clinic Liver Cancer (BCLC) classification. RESULTS Altogether, 348 patients were diagnosed with HCC. There were 239 (68.7%) Chinese patients, 71 (20.4%) Malays and 38 (10.9%) Indians, with the median age of 62.5 years and the male to female ratio of 3.4:1. The predominant etiology in Malay and Chinese patients was hepatitis B virus infection (>60%) and in Indian patients was alcohol intake (26.3%) and cryptogenic cause (29.0%). Hepatitis C was seen in 18.3% of Malays, but less than 10% in Chinese and Indians. BCLC staging was: Stage A, 120 (34.5%); Stage B, 75 (21.6%); Stage C, 84 (24.1%); and Stage D, 69 (19.8%). A larger proportion of Indian than Chinese and Malays patients (44.7%) presented with stage D disease. Portal vein invasion was noted in 124 patients (35.6%) and extrahepatic metastases in 68 (19.5%). Surgical resection and radiofrequency ablation with curative intent was carried out in >90% of stage A patients and transarterial chemoembolization in 49.3% and 21.4% of stages B and C patients, respectively. CONCLUSIONS HCC is most common among Chinese, followed by Malays and Indians in Malaysia. The etiology of HCC shows a peculiar racial pattern.
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Affiliation(s)
- Khean-Lee Goh
- Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Koh PS, Hughes GC, Faulkner GR, Keeble WW, Bagby GC. The Fanconi anemia group C gene product modulates apoptotic responses to tumor necrosis factor-alpha and Fas ligand but does not suppress expression of receptors of the tumor necrosis factor receptor superfamily. Exp Hematol 1999; 27:1-8. [PMID: 9923438 DOI: 10.1016/s0301-472x(98)00064-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Exposure of hematopoietic progenitor cells (HPC) from mice and humans with Fanconi anemia group C (FAC) to interferon-gamma (IFN-gamma) or tumor necrosis factor-alpha (TNF-alpha) at doses too low to inhibit growth of normal HPC induces profound apoptotic responses. Because the IFN-gamma hypersensitivity of cells lacking the FAC protein is mediated, in part, through priming of the Fas pathway, and because several other members of this family are capable of inducing apoptosis either alone or in concert with each other, we tested the hypothesis that IFN-gamma induces increased expression of members of the TNF receptor (TNFR) superfamily in cells nullizygous for the FAC gene. Using isogenic human Epstein-Barr virus-transformed lymphoblast cell lines and c-kit+ bone marrow cells from mice with inactivating mutations of the FAC locus, we quantified mRNA levels by reverse transcriptase polymerase chain reaction and surface expression of the gene products by flow cytometry of TNFR1, TNFR2, Fas, CD30, CD40, and nerve growth factor receptor. We found that neither constitutive nor IFN-gamma-induced expression of these receptors was influenced by the absence of a functional FAC gene product, and expression of these receptors was not suppressed in nullizygous cells complemented with the normal FAC cDNA. We conclude that, although exaggerated apoptotic responses in FAC-deficient cells are at least partially mediated through activation of members of the TNFR superfamily, the normal FAC protein does not function as a direct suppressor of this family of molecules and inactivation of FAC does not augment expression of these proteins.
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Affiliation(s)
- P S Koh
- Division of Hematology and Medical Oncology, Oregon Health Sciences University, VA Medical Center, Portland, USA
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Mak KH, Tan AT, Na KX, Kam RM, Koh PS. Outpatient coronary angiography using 7 French catheters in Singapore. Singapore Med J 1995; 36:49-51. [PMID: 7570135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
PURPOSE Out-patient coronary angiogram (OCA) is commonly performed in many centres using 5 or 6 French (F) catheters. Though this small catheter may reduce bleeding complications, manipulatability and adequate vessel visualisation are problems which may increase procedure time. 7 or 8 F catheters have been used in Caucasians. We report our experience with OCA using 7 F catheters in an Asian centre. METHODS Sixty-six patients with low procedural risk were consecutively recruited. They were pre-medicated with oral diazepam. Selective coronary angiogram (SCA) and left ventriculogram were performed via the femoral artery. Parenteral heparin was administered after the arterial puncture. After the procedure, haemostasis was secured by at least ten minutes of manual compression. The patients were immobilised for six hours and thereafter encouraged to walk for about an hour. The groin was inspected by a doctor before discharge and reviewed the following day. RESULTS The age ranged from 27 to 73 years with a mean of 52.6. There were 48 men and 18 women. Seventeen patients had previous SCA or angioplasty. There was no significant coronary artery disease (CAD) in 26 patients (39.4%). Thirteen patients (19.7%) had minor CAD, 20 (30.3%) had single or double vessel and 7 (10.6%) had triple vessel disease. The mean procedural time was 16.6 +/- 7.3 minutes, ranging from 7 to 54. Seven (10.6%) of the patients had a small haematoma prior to discharge. None of the haematoma deteriorated at review. We did not find sex, age, history of diabetes mellitus or hypertension, height, weight, body mass index, use of anti-platelet agents, systolic blood pressure at and after the procedure and coronary artery anatomy to be associated with an increased risk of haematoma. The estimated cost savings for a non-subsidized patient was S$285 and for a subsidized patient was S$66. CONCLUSION We conclude that OCA using 7 F catheters is a safe and efficacious procedure in our patients.
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Affiliation(s)
- K H Mak
- Department of Cardiology, Singapore General Hospital
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Koh PS, Raffensperger JG, Berry S, Larsen MB, Johnstone HS, Chou P, Luck SR, Hammer M, Cohn SL. Long-term outcome in children with opsoclonus-myoclonus and ataxia and coincident neuroblastoma. J Pediatr 1994; 125:712-6. [PMID: 7525913 DOI: 10.1016/s0022-3476(94)70062-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We reviewed the neurologic and developmental courses in 10 children with opsoclonus-myoclonus ("dancing eyes syndrome") and neuroblastoma. All patients are alive without evidence of neoplastic disease after 8+ to 111+ months of follow-up. All had localized disease and 50% had extraabdominal tumors. Neuroblastomas of nine children had favorable Shimada histologic characteristics, and all tumors had single copies of the N-myc oncogene. After neuroblastoma resection, all patients had persistent opsoclonus-myoclonus or ataxia that responded to therapy with adrenocorticotropic hormone. Nine children had relapses of neurologic symptoms. Three years after resection, six of seven patients with sufficient follow-up were free of symptoms and had discontinued therapy. However, nine children had chronic neurologic deficits, including cognitive and motor delays, language deficits, and behavioral abnormalities. All six patients in educational programs required special assistance. Five children required physical, occupational, or speech therapy. Long-term developmental and cognitive problems should be anticipated in patients with neuroblastoma who have opsoclonus-myoclonus or ataxia or both, and early intervention should be instituted to try to minimize these deficits.
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Affiliation(s)
- P S Koh
- Northwestern University Medical School, Chicago, Illinois
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Tay HH, Yap I, Guan R, Koh PS, LaBrooy SJ, Kang JY. Twice daily cimetidine in the initial treatment of chronic gastric ulcer--a double-blind placebo-controlled trial. Med J Malaysia 1988; 43:181-5. [PMID: 3070309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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