Conference Papers
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This collection contains abstracts of conference papers, presented at local and international conferences by the staff of the Faculty of Medicine
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Item Nutrition of patients with mild-to-moderate Alzheimers disease using the Mini Nutritional Assessment (MNA)(Sri Lanka Medical Association., 2019) Fernando, M.G.; Silva, K.D.R.R.; de Silva, M.P.; Obadaarachchi, L.N.; Yalegama, L.L.W.C.; Dissanayake, A.S.; Williams, S.S.INTRODUCTION & OBJECTIVES: Focus on the nutrition of patients with Alzheimer's disease is limited despite the need for optimization of overall patient health to improve well being and outcome. The objective of this study was to look at the nutrition and energy intake of patients with mild to moderate dementia. METHODS: Sixty patients with mild-to-moderate AD (Mini Mental State Examination score: 12-25; male:28; female: 32; age >65 years) were recruited from the clinics at the North Colombo Teaching Hospital, Ragama and Lanka Alzheimer's Foundation as part of the VCO-AD study, after informed consent. Baseline nutritional status was assessed by a Mini Nutritional Assessment (MNA) tool and dietary intake via a 24-hour dietary recall. RESULTS: The total energy intake of the study population (men: 1822±645 kcal/day, women: 1380±346 kcal/day) was lower than recommended standards. The percentage energy from fat, protein and carbohydrates (30.7±7.6%, 12.7±2.7%, and 56.8±8.7%, respectively) met recommendations. The energy intake from saturated fat (19.7±6.9%) however was higher than the recommendation. Vitamin C, D, E, folate, calcium, potassium, selenium and iodine intake (37.4±30.4 mg/day, 2.2±3.1 µg/day, 2.4±1.4 mg/day, 219±125 µ/day, 483.8±230.8 mg/day, 1853.9±590.8 mg/day, 38.1±22.7 µg/day, and 59.8±35.4 µg/day respectively) was lower than the estimated average requirements (EAR). MNA results showed that 20% were at risk of malnutrition. CONCLUSION: A higher saturated fat intake and lower vitamin intake were concerns in this population of patients with mild to moderate dementia.Item Electrogastrography (EGG) and gastric motility: an investigation to evaluate gastric emptying in those who undergo oesophago -gastric anastomosis without a pyloroplasty(Sri Lanka Medical Association, 1998) Samarasekera, D.N.; Suraweera, P.H.R.; de Silva, H.J.; Dissanayake, A.S.INTRODUCTION: EGG is a non-invasive technique of recording gastric myoelectrical activity by placing electrodes on the abdomen. Objectives : The aim of this study was to assess the myoclcctrical activity of the stomach following ocsophago-gastric anastomosis without a pyloroplasty and also to correlate the values with those who develop symptoms of gastric stasis. DESIGN,SETTING AND METHODS : We present the initial results of an ongoing study. EGG results of six patients (M:F=5: 1) with carcinoma of the oesophagus who underwent transhiatal oesophagectomy were analysed. Mean age was 56y (range 45-76). EGG was performed preoperatively and three months after surgery using computerised digitrapher EGG (Syncctics, UK). One patient complained of symptoms of gastric stasis and reflux and did not respond to therapy with prokinetic agents. She underwent subsequent pyloroplasty and is asymptomatic at present. RESULTS : All patients showed normal preoperative myoelectrical activity (mean - + 131.17 mv) and motility. Postopcratively all patients showed bradygastria and low myoelectrical activity. Postoperative myoelectrical activity in the asymptomatic group showed a value which was positive (mean - +94.12mv) compared to the symptomatic patient who had a persistent mean negative value (- 89.34 mv). CONCLUSIONS : Persistent negative amplitude in the EGG postoperatively may indicate severe gastric stasis. This may be due to poor contractiliy of the denervatcd stomach in some patients. Therefore pyloroplasty should be considered before these patients develop complications of stasis and reflux.Item Electrogastrographic observations in healthy adults(Sri Lanka Medical Association, 1998) Ferdinandis, T.G.H.C.; Dissanayake, A.S.; de Silva, H.J.INTRODUCTION : Electrogastrography (EGG) is a recently developed non invasive technique of recording gastric myoelectrical activity. Normal values of EGG parameters are yet to be clearly defined. There are suggestions that the values may vary due to factors such as gender and ethnicity. AIM : To determine normal values for several EGG parameters in healthy Sri - Lankan volunteers in the fasting and fed state, and we also hypothesized that, there are significant differences in these between the two sexes. METHOD : EGG was performed in 17 healthy volunteers, 8 males(age 21 -60 yr.) and 9 females(age 24 - 46 yr.) in the follicular phase for one hour each in the fasting and the fed states. Result were analyzed using the statistical package Epilnfo. RESULTS : The mean gastric electrical frequency was 2.65 + 0.67 cpm in the fasting and 2.69 + 0.75 in the fed state. The dominant frequency was in the 2 -4 cpm range in 15 (88.2%) subjects in the fasting and in 14(87.5%) in the fed state respectively. These differences were not statistically significant. Feeding caused an increase in the power of the dominant frequency by 19 - 4600 uV2 in 12(75%) subjects. The above results did not differ significantly between the two sexes. CONCLUSIONS : The dominant gastric electrical frequency in Sri Lankans was consistent with previously reported data from other countries. Increase in EGG power after a solid meal was confirmed by the study. Although a gender difference in EGG parameters has been reported previously, our reports failed to demonstrate such a difference.