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 Impact of acalypha indica (Kuppamenia) phytochemicals on glucose-6-phosphate dehydrogenase deficiency: two clinical case studies(College of Chemical Pathologists of Sri Lanka, 2024) Fernando, K.; Fernando, N.; Dayanath, B.K.T.P.; Williams, S.; Premawardhena, A.INTRODUCTION Acalypha indica, known as “kuppamenia” in Sinhala, plays a significant role in ayurvedic medicine in Sri Lanka. Despite its medicinal use, certain phytochemicals within the plant have been linked to oxidative stress-induced haemolysis in individuals deficient in glucose-6-phosphate dehydrogenase (G6PD) enzyme activity. However, we know very little regarding those chemicals due to a dearth of literature. Here, we present two cases highlighting the impact of Acalypha indica ingestion on individuals with G6PD deficiency.CASE PRESENTATION Case 1: A 65-year-old man presented with jaundice, pallor, and haematuria after consuming “Kuppamenia mallum”. His peripheral blood picture showed bite cells and Heinz bodies. Positive Brewer’s test raised the clinical suspicion of G6PD deficiency. He received blood transfusions during the acute phase and was discharged upon improvement of symptoms. Low levels of G6PD enzyme at the follow-up visit confirmed the diagnosis. Case 2: A 61-year-old male presented with respiratory distress, jaundice and haematuria, accompanied by peripheral cyanosis and hypotension. He was admitted following four days of continuous ingestion of Acalypha indica. Peripheral oxygen saturation was low, and Heinz bodies were evident in the peripheral blood film. Blotting paper methaemoglobinaemia assessment revealed a level of 70%. Despite optimal medical management, he succumbed to a cardiac arrest on the fourth day of admission.DISCUSSION AND CONCLUSIONS Despite its antioxidant properties, Acalypha indica can precipitate acute haemolysis in G6PD-deficient individuals. Symptomatology and outcomes vary with the amount ingested, underscoring the necessity for research into identifying potentially toxic phytochemicals and their concentrations.Item Do doctors really know about “hs-cTnI”? A comprehensive evaluation of knowledge regarding high-sensitivity cardiac troponin I (hs-cTnI) assay among medical officers in Gampaha district(College of Chemical Pathologists of Sri Lanka, 2024) Fernando, N.; Fernando, K.; Gallage, T.; Dayanath, B.K.T.P.; De Silva, S.INTRODUCTION AND OBJECTIVES The high-sensitivity cardiac troponin I (hs-cTnI) assay is a crucial diagnostic marker in the triage of patients presenting with chest pain. Notably, errors in interpreting the testing method have been identified among medical officers, leading to an increased likelihood of inaccuracies in testing and interpretation. This study aims to evaluate the level of understanding among medical officers regarding the hs-cTnI assay in relation to the most recent European Society of Cardiology (ESC) guideline released in 2020. METHODS A cross sectional questionnaire-based study was conducted at two government hospitals in Gampaha District during June 2022. A self-administered e-questionnaire was used to assess knowledge regarding hs-cTnI. Knowledge was measured through cumulative scoring of questionnaire responses, subsequently categorized as either good or poor knowledge. Scores below 60% were designated as poor, and vice versa. Descriptive statistics were employed for data summarization. RESULTS Out of 300 participants, 76% (227) responded. Only 14.5% (33/227) exhibited proficient knowledge of the analytical component, while 41.9% (95/227) demonstrated good knowledge of the clinical component. A score ≥60% on the analytical component knowledge correlated significantly with factors such as designation being a senior registrar or consultant (p<0.001), postgraduate enrolment (p<0.001), participation in continuous professional development programmes (p<0.001), and employment in a teaching hospital (p=0.025). Conversely, no significant associations were observed with age (p=0.066) or private practice (p=0.118). Clinical component knowledge scores ≥60% were significantly associated with age between 25 and 35 years (p=0.006), postgraduate enrolment (p<0.001), participation in continuous professional development programs (p<0.001), and employment in a teaching hospital (p=0.001) but not with doing private practice (p=0.170). CONCLUSIONS In Sri Lanka, medical officers’ analytical knowledge on the hs-cTnI assay seems lacking. Ongoing training programmes are essential to enhance their knowledge and proficiency in hs-cTnI testing.Item Prevalence and correlates of postpartum depression in the puttalam district(Sri Lanka College of Obstetricians and Gynaecologists, 2004) Rowel, D.D.S.; Jayawardena, P.L.; Fernando, N.OBJECTIVES: To study the prevalence and the correlates of postpartum depression. METHODOLOGY: This was a community based prospective study, carried out in the District of Puttalam during the period of October 2003 to April 2004. The sample size computed was 1100. The validated Sinhala translation of the Edinburgh Postnatal Depression Scale (EPDS) was used to determine the prevalence of postpartum depression, at 6 weeks postpartum at home, where the cut off for depression was determined to be 9/10. In addition, the questionnaires on socio demographic data and reproductive health, the Maternity Social Support Scale, the Abuse Assessment Questionnaire, the Modified Life Events Inventory and the questionnaire on delivery and the index child were administered to identify the independent variables associated with postpartum depression. Multivariate logistic regression analysis was carried out and the results are expressed as Odds Ratios (OR) and 95% Confidence Intervals (95% CI). RESULTS: The prevalence of postpartum depression in the district of Puttalam was 32.1%. From multivariate analysis, unplanned pregnancy (OR=1.6; 95% CI= 1.1-2.3) , conflicts with the husband (OR=1.5; 95% CI= 1.1-2.0), physical abuse during pregnancy (OR=5-2; 95% CI= 1.6-16.1), death of a close friend (OR=2.2; 95% CI= 1.3-3.7), use of harsh words by the husband (OR=2.1; 95% CI= 1.2-3.1), normal vaginal delivery (OR=1.7; 95% CI= 1.1-2.6), low birth weight of the baby (OR=1.6; 95% CI= 1.01-2.4), illness in the baby (OR=2.1;95%CI= 1.2-3.4) and poor sleeping pattern of the baby at night (OR=1.6; 95% CI= 1.1-2.2), were the factors found to be significantly associated with postpartum depression. CONCLUSIONS: Postpartum depression which had a prevalence of 32.1% is considered a major public health problem in Sri Lanka. Therefore it is important to address the factors found to be associated with it, because of its negative impact on the mother, the child and the family.Item Clinico-epidemiological characteristics, treatment and outcomes of patients with confirmed Leptospirosis in a Sri Lankan healthcare setting(Sri Lanka Medical Association, 2015) Rajapakse, S.; Weeratunga, P.N.; Rodrigo, C.; Sriharan, S.; Niloofa, M.J.R.; Fernando, N.; de Silva, H.J.; Karunanayake, L.; Premawansa, S.INTRODUCTION AND OBJECTIVES: Leptospirosis is a zoonotic infection caused by spirochaetes of the genus Leptospira, with humans being affected as incidental hosts. Leptospirosis is endemic in Sri Lanka. There is paucity of prospective data on the clinico-epidemiological characteristics, treatment profiles and outcomes of patients with ieptospirosis in Sri Lanka. METHOD: This was a prospective cross sectional study of patients, over 12 years of age, with a diagnosis of ieptospirosis based on the WHO surveillance criteria with subsequent laboratory confirmation, presenting to three hospitals in the Western province of Sri Lanka. RESULTS: Of a total of 178 patients, males (84.3%) between the ages of 40-49 years were more likely to be affected. 51.7% were direct admissions and 47.8% were transfers. Exposure to water potentially contaminated with rat urine was seen in the majority (71.9%). A significant proportion of patients developed acute kidney injury (66.9%). Penicillin was the most commonly used antibiotic for treatment (47.2%), however more than one antibiotic was used in 43.3%. The use of chemoprophylaxis by the patients was low (1.1%). Hemodialysis was needed for 36.5%. Recovery was seen in 71.3%, 2.8% died, 10.1% were transferred out and 15.8% were lost to follow-up. On discharge, 70.6% had been treated for severe leptospirosis. Mean length of hospital stay was 7.5 days (±5.1). CONCLUSION: The incidence of severe leptospirosis with organ dysfunction is higher in patients presenting to hospitals in the .Western province. Males aged 40-49 are most commonly affected. More than two thirds of the patients developed acute kidney Injury. Chemoprophylaxis rates were low.Item A diagnostic model for Leptospirosis for use in resource limited settings(Sri Lanka Medical Association, 2015) Rajapakse, S.; Weeratunga, P.N.; Rodrigo, C.; Sriharan, S.; Niloofa, M.J.R.; Fernando, N.; de Silva, H.J.; Karunanayake, L.; Premawansa, S.INTRODUCTION AND OBJECTIVES: Leptospirosis is a zoonotic infection with significant morbidity and mortality. In this prospective study, we attempted to develop a model for diagnosis of leptospirosis. METHOD: Data was extracted from a prospective multicentre study. All patients with a suspected diagnosis of leptospirosis based on the WHO surveillance criteria were recruited. A derivation cohort and a validation cohort were selected. Positive MAT was used as the gold standard and significant associations in the derivation cohort were selected for construction of a multivariate regression model. Adjusted odds ratios were extracted for significant variables. ROC curves were generated. RESULTS: A total of 592 patients were included with 450 (180 confirmed leptospirosis) in the derivation cohort and 142 (52 confirmed leptospirosis) in the validation cohort. The variables in the final model were: history of exposure to possible source of leptospirosis (OR=2.878;95% Cl=1.527-5.425;p=0.001), serum creatinine>150u.mol/L (OR =2.742; 95% CN1.474-5.101; p=0.001), neutrophil differential percentage (on day 3 of illness) > 82.8% of total WBC count (OR 2.063; 95% Cl = 1.109 - 3.837; p =0.022), serum bilirubin > 27 U/L (OR = 1.767;95%CI 0.968 - 3.226; p=0.050) and platelet count (on day 3 of illness)< 85,000/mm3 (OR=2.350; 95%CI=1.281 -4.313;p=0.006). The Nagelkerke R2 was 0.654. ROC analysis demonstrated a diagnostic model score >14 to have a sensitivity of 80% and a specificity of 60% in the diagnosis of leptospirosis against MAT as the gold standard. CONCLUSION: This proposed diagnostic model for diagnosis of leptospirosis is of potential value to clinicians treating acute febrile illness in areas with limited diagnostic facilities.Item Clinical and laboratory associations of severity in a Sri Lankan cohort of patients with serologically confirmed Leptospirosis - a prospective study(Sri Lanka Medical Association, 2015) Rajapakse, S.; Weeratunga, P.N.; Rodrigo, C.; Sriharan, S.; Niloofa, M.J.R.; Fernando, N.; de Silva, H.J.; Karunanayake, L.; Premawansa, S.; Handunnetti, S.INTRODUCTION AND OBJECTIVES: Leptospirosis is a zoonotic infection of significant morbidity and mortality. This study elucidates the markers of severity in a cohort of Sri Lankan patients with serologically confirmed leptospirosis. METHOD: Prospectively recruited patients presenting to three healthcare institutions in the Western province of Sri Lanka with serological confirmation of leptospirosis with the microscopic agglutination test were included. Data regarding the socio-deruographic profile, clinical presentation, complications and biochemical parameters were recorded. Univariate associations and subsequent multivariate logistic regression models were constructed with severity as the dependent variable. RESULTS: A total of 232 patients were included. Majority were male (86.6%). Severe disease was noted in 68.5%. Significant clinical associations of severe disease included fever > 38.8°C on presentation (p=0.008), age>40 yrs; (p = 0.033), muscle tenderness (p=0.04) and tachycardia on admission (p=0.05). Laboratory associations of severe disease were highest white cell count > 12,350/mm3 (p<0.001) and < 7900/mm3 (p = 0.009), highest neutrophil percentage > 84% {p < 0.001). Hemoglobin > 11.2g/dL (p<0.001) and < 10.2 (p<0.001), packed cell volume > 33.8% (p <0.001) and <29.8% (p <0.001), lowest platelet count <63,500/mm3 (p = 0.01), highest ALT > 70 IU/L {p = 0.02) and hyponatremia with sodium <131mEq/L (p=0.004) On multivariate analysis, PCV < 29.8 (P = 0.011; adjusted OR =3.750; Cl = 1.394 - 10.423), ALT >70 P =0.044 adjusted OR =2.639; Cl =1.028-6.774 and hyponatremia< 131 (p=0.019 adjusted OR=6.413; Cl=1.353 -30.388) were found to be independent associations of severe disease. CONCLUSION: Severity associations were demonstrated with both clinical and laboratory parameters.Item Validation of the Sinhala translation of the Edinburgh Postnatal Depression Scale(Sri Lanka Medical Association, 2005) Rowel, D.D.S.; Jayawardena, P.L.; Fernando, N.OBJECTIVE: To validate the Sinhala translation of Edinburgh Postnatal Depression Scale (EPDS) to detect depression in antenatal and postnatal mothers. METHODOLOGY: Content validity of EPDS was checked by a panel of experts. Translation of the English questionnaire by bilingual experts to Sinhala by 'translation back translation1 method followed. Thereafter alternate form reliability of the instrument was checked. Criterion validity of the instrument was assessed against a 'gold standard', which was the clinical diagnosis by a consultant psychiatrist based on ICD 10 Research Diagnostic Criteria. This was done in field combine clinics of Medical Officer of Health area Kolonnawa. The antenatal mothers completing 34 weeks of period of amenorrhea and postnatal mothers 6 weeks after partus were administered the EPDS followed by the clinical psychiatric interview. The cut off scores for EPDS to identify depression in antenatal and postnatal mothers were determined using the Receiver Operator Characteristic (ROC) curves. RESULTS: The cut off score of 9/10 (sensitivity of 90.7% and a specificity of 86.8%) was the best cut off to screen for depression in antenatal mothers. In postnatal mothers a cut off score of 9/10 (sensitivity of 89.9% and a specificity of 78,9%) was the best cut off score to screen for postpartum depression.CONCLUSION: Sinhala translation of EPDS is a reliable and a valid instrument to detect depression in antenatal and postnatal mothers in Sri Lanka.