Effects of Perioperative Oral Nutrition Supplementation in Malaysian Patients Undergoing Elective Surgery for Breast and Colorectal Cancers-A Randomised Controlled Trial.

This study aimed to investigate the effectiveness of preoperative and an extended 90-days postoperative use of ONS among patients undergoing elective surgery for breast and colorectal cancers. Ninety-one patients were randomised into (i) Group SS received ONS up to 14 days preoperatively and postoperatively up to discharge, (ii) Group SS-E received ONS up to 14 days preoperatively, postoperatively up to discharge and for an extended 90-days after discharge and (iii) Group DS received ONS postoperatively up to discharge. Preoperatively, SS had significantly higher body weight (66.1 ± 15.3 kg vs. 62.5 ± 12.0 kg, p = 0.010) and BMI (26.8 ± 6.8 kg/m2 vs. 26.1 ± 6.7 kg/m2, p = 0.022) than DS when adjusted for baseline values. Postoperatively, SS-E had significantly higher handgrip strength (26 ± 9 kgF vs. 24 ± 6 kgF, p = 0.044) than DS at 90-days post-discharge after adjusted for preoperative values. At 90-days post-discharge, the proportions of patients in SS with albumin < 35 g/d, CAR ≥ 0.1, mPINI ≥ 0.4, mGPS score 1 or 2 were significantly reduced while in SS-E, the reduction in proportions of patients with high hsCRP and mPINI ≥ 0.4 was significant compared to upon discharge. Preoperative ONS had modest benefits in attenuating weight loss whilst postoperative supplementation up to 90-days post-discharge improved handgrip strength and inflammatory prognostic markers.

Can We Use Peer-Assisted Learning to Teach Basic Surgical Skills?

BACKGROUND: It is reported that medical students do not receive adequate opportunities to learn surgical skill and are at risk of being unable to perform simple surgical procedures safely. The usefulness of peer-assisted learning (PAL) as a tool to assist in delivering surgical skills training is worth exploring. METHODS: This is a randomised single blinded controlled trial. Fourth-year students from the university's Surgical Society were asked to volunteer as peer tutors and those in 3rd-year were asked to undertake surgical skills training. A cohort of 35 students were selected and randomised to receive basic surgical skills training conducted either by faculty members or peers. The students' performance of basic suturing skills was assessed using a checklist, through directly observed procedural skills (DOPS) technique. The assessment was conducted by faculty blinded to the training. Students' perception to surgical skills training was assessed using a questionnaire survey. RESULTS: The suturing and knotting skills of students learned from their peers was comparable to that acquired from faculty. The students' perceived that their peers could conduct surgical skills training similar to their faculty. CONCLUSION: PAL approach for basic surgical skills training is as effective as faculty-led training. PAL has the potential to optimise the delivery of surgical skills training in undergraduate medical education.

A Review of Gastric Cancer Research in Malaysia

Incidence rates of gastric cancer in Malaysia has declined by 48% among males and 31% among females in the latest reporting period of 13 years. Malays used to have age-standardized-rates only a fifth of those in Chinese and Indians, but the incidence among them is slightly rising even as the rates drop in the other races. Besides ethnicity, a low level of education, high intake of salted fish and vegetables, H pylori infection and smoking are risk factors. Consumption of fresh fruit and vegetable is protective. Variation in the strains of H pylori infection affect gastric cancer risk, with hspEAsia isolates among Chinese appearing linked to a high incidence than with hpAsia2 or hpEurope strains among Indians and Malays. It was reported in the 1980s that only about 3% of patients presented with early gastric cancer, but more encouraging rates reaching 27% with Stage 1 and 2 disease have been reported in the twenty-first century from leading centres. More tumours occur in the distal stomach except in Kelantan, where the incidence is low and main site is the cardia. Prompt endoscopy is advocated and open access, with direct referrals, to such services using a weighted scoring system should be more utilized. In view of the high rate of late disease laparoscopic staging unnecessary laparotomy needs to be avoided. Late presentation of gastric cancer however, is still predominant and the mortality to incidence ratio is relatively high. Besides seeking to reduce risk factors and achieve early detection, implementation of improved care for patients with late disease must be promoted in Malaysia.

Histomorphology and Immunohistochemistry of Gastrointestinal Stromal Tumors in a Malaysian Population.

PURPOSE: To study histomorphological and immunohistochemical patterns of gastro-intestinal stromal tumours (GISTs) in Malaysia. MATERIALS AND METHODS: A total of 29 GIST cases from Hospital Tuanku Ja'afar, Seremban ,were studied retrospectively over a period of 10 years from January 2002 to December 2011. Patient demographic data like age, sex and etnicity were collected. Tumour characteristics like site, maximum dimension and specimen type were analysed. Evaluation was according to established criteria into very low, low, intermediate and high-risk categories. Immunohistochemical characteristics were also analysed. RESULTS: The mean age of patients was 59.7 years. Males (59%) were found to be more commonly affected than females (41%). The Chinese (45%) were commonly affected than Malays (41%), and Indians (10%). The most common symptom was pain in the abdomen (13.8%). More than half of the cases were seen in stomach (53%). The tumour size ranged from 1.5 cm to 17 cm with a mean of 6.94cm. Microscopic findings revealed that the spindle cell type was the most common (76%). It was observed that the majority of the cases (48%) were categorised in the intermediate risk group. Immunohistochemical staining showed positivity for CD117 (78.6%), CD34 (71.4%), vimentin (86.2%), S-100 (27.6%), SMA (35.7%), PKC THETA (46.4%) and PDGRFA (67.9%).

MARK's Quadrant scoring system: a symptom-based targeted screening tool for gastric cancer.

BACKGROUND: Gastric cancer is notably one of the leading causes of cancer-related death in the world. In Malaysia, these patients present in the advanced stage, thus narrowing the treatment options and making the surgery nearly impossible for successful curative resection. Failure to identify high-risk patients and delay in diagnostic endoscope procedure contributed to the delay in diagnosis. The aim of the study was to develop and validate a scoring system (MARK's Quadrant) which can identify symptomatic patients who are at risk for gastric cancer. METHODS: A 3-phase approach was undertaken: Phase 1: development of the weighted scoring system; Phase 2: estimating positive predicting value of MARK's Quadrant; and Phase 3: a) testing the validity of MARK's Quadrant in an open-access endoscope system; and b) comparing its usefulness compared to conventional referral system. RESULTS: In phases 1 and 2, MARK's Quadrant with weighted symptoms was developed. The sensitivity of MARK's Quadrant is 88% and the specificity is 45.5% to detect cancerous and precancerous lesions of gastric. This was confirmed by the prospective data from phase 3 of this study where the diagnostic yield of MARK's Quadrant to detect any pathological lesion was 95.2%. This score has a high accuracy efficiency of 75%, hence comparing to routine referral system it has an odds ratio (95%CI) of 10.98 (4.63-26.00), 6.71 (4.46-10.09) and 0.95 (0.06-0.15) (P<0.001 respectively) for cancer, precancerous lesion and benign lesion diagnosis respectively. CONCLUSION: MARK's Quadrant is a useful tool to detect early gastric cancer among symptomatic patients in a low incidence region.

Pre-emptive intraperitoneal local anaesthesia: an effective method in immediate post-operative pain management and metabolic stress response in laparoscopic appendicectomy, a randomized, double-blinded, placebo-controlled study.

BACKGROUND: Although laparoscopic surgeries are associated with reduced surgical stress response and shortened post-operative recovery, intense pain and high analgesia requirements in the immediate post-operative period are often the chief complaints. AIM: The aim of this study was to evaluate the effect of pre-emptive intraperitoneal local anaesthetic drugs on post-operative pain management and metabolic stress response in laparoscopic appendicectomy. METHOD: The method used was a randomized double-blinded placebo-controlled study. Patients with clinical diagnosis of acute appendicitis who fulfil the criteria, were taken into this study. Primary outcomes investigated were consumption of patient-controlled analgesia during the immediate post-operative period (first 6 h) and subsequent 18 h as well as serum cortisol sampling. RESULTS: Total of 120 patients were recruited into three different treatment groups (placebo, ropivacaine, levobupivacaine). In order to maintain visual analogue score of 0-1 during the immediate post-operative period, patients in the placebo group required significantly (P < 0.001) higher dose of analgesia (morphine/mg) - 11 mg (8.3-15.5) as compared with ropivacaine - 4 mg (3.0-6.0) and levobupivacaine - 3.5 mg (2.0-5.0). The immediate post-operative serum cortisol showed a significant increase in serum cortisol in the placebo group (P = 0.001) as compared with ropivacaine and levobupivacaine groups. CONCLUSION: Pre-emptive intraperitoneal local anaesthesia in laparoscopy surgery is a safe, non-invasive procedure that can benefit patients by reducing the immediate post-operative pain intensity and metabolic stress response of the body.

Assessment Of Basic Practical Skills In An Undergraduate Medical Curriculum

Introduction: Health educators and accrediting bodies have defined objectives and competencies that medical students need to acquire to become a safe doctor. There is no report in Malaysia, about the ability of medical students to perform some of the basic surgical skills before entering the houseman ship. The aim of this study is to determine whether the teaching/ learning methods of practical skills in our undergraduate program have been effective in imparting the desired level of competencies in these skills. Methods: A list of basic practical skills that students should be competent has been identified. These skills are taught in a structured way and assessed as part of the composite end- of- semester examination. Practical skills stations form part of an Objective structured practical examination (OSPE). Results: The results of 244 students who participated in three ends of semester examinations were analyzed. The mean score for the practical skills stations were higher than the mean OSPE (of all 18 stations) and overall score (of the written, practical and clinical examination). However the failure rate in the practical skills stations is higher in most of the stations (7 out of 8 stations) compared to overall failure rates. Conclusions: In spite of the formal skills training many students failed to demonstrate the desired level of competencies in these stations. Assessment of practical skills as part of overall composite examination may not be effective in ensuring that all students have achieved the required level of competency. Practical skills should be assessed through dedicated formative assessments to make sure that all the students acquire the required competencies.