Coronary Artery Revascularization with the Left Internal Mammary Artery (LIMA) to Diagonal (D) & Left Anterior Descending (LAD) Sequential and LIMA-LIMA "Y" Graft, Our Experiences at National Heart Foundation Hospital and Research Institute

The Left internal mammary artery (LIMA) is considered the conduit of choice for the surgical treatment (CABG, coronary artery bypass grafting) of Coronary artery disease (CAD) due to its superior long term potency than the other conduits. Sequential anastomosis with the LIMA in CABG increases the number of arterial graft and more completeness the arterial revascularization. To increase the number of arterial graft and improved long term potency, an alternative technique is sequential anastomosis of LIMA to Diagonal (D) & left anterior descending artery (LAD) and LIMA-LIMA "Y" Graft play a vital role in patients with tight proximal lesion. Perioperative data were prospectively collected from all patients with isolated CAD with tight proximal LAD lesion, who underwent off-pump CABG from November 2013 to October 2015 at a single Centre. A total of 321 patients had LIMA to D & LAD sequential and LIMA-LIMA "Y" grafts pattern with severe proximal LAD lesion. The mean age was 54.7±8.4 years, male & female ratio was 29.7:7.5. Left main involvement was in 25% & triple vessel disease was 89% with LVEF 53.6±8.6%. Sequential LIMA to diagonal (side to side) & LAD (end to side) done in all 294 cases and LIMA-LIMA"Y" grafts in 27 cases. Thirty days mortality was 0.935% (3 patients). Postoperative myocardial infarction (MI) occurred in 2 patients (0.623%). Two sequential LIMA graft failed and both the diagonal & LAD bypassed coronary arteries were very narrow, about 1mm in diameter. All the patients underwent postoperative NYHA class evaluation at 3-6 months follow up & found normal and none of the patients suffered for angina. Revascularization with skeletonized sequential LIMA anastomosis to D, LAD & LIMA-LIMA "Y" graft is a safe, feasible with improve overall long-term potency and reproducible alternative in the presence of severe proximal LAD lesion to the complete revascularization of the anterior& lateral myocardial wall. Long term follow-up with coronary angiogram is essential to recommend this technique as standard one.

Gastrointestinal Manifestations among COVID-19 Patients in Bangladesh: A Cross Sectional Study

This study was done to find out the frequency of gastrointestinal manifestations among adult COVID-19 patients in Bangladesh. This descriptive cross sectional retrospective study was conducted from 27 May till 20 June 2020. Data were collected retrospectively from three different hospitals of Dhaka, Bangladesh. Patients were interviewed over telephone and verbal consents were taken. Their demographic and clinical profiles were put in the questionnaires by the investigators themselves. Statistical analysis was done thereafter. Out of 226 patients diagnosed with COVID-19, 145(61.4%) patients had gastrointestinal symptoms. Five of them had none other than gastrointestinal symptoms. Twenty six patients were asymptomatic. Mean age of the patients with were 41.6±14.8 years. Males were affected almost equally as the females (51.72% vs. 48.27%) (Ratio 1.1:1). Anorexia (44.7%) followed by diarrhoea (35%) and nausea (22.6%) were the predominant symptoms. Patients with co-morbidities (74.7%) were more prone to develop GI symptoms. Family members (71.6%) of COVID-19 patients with GI symptomatic patients were more affected than the others. Hospitalizations (77.6%) were more among GI symptomatic patients than the others. Thirty Five percent (35%) patients had diarrhoea. Mean duration of diarrhoea was 2.7±1.7 days with a frequency of were 4±1.8 days per day. Gastrointestinal manifestations are common among patients with COVID-19. Clinicians need to be aware of the GI features amongst COVID-19 patients so that they can be addressed and treated effectively and immediately. Further large scale study is needed to predict the disease outcome among COVID 19 patients with GI symptoms.

Early Versus Delayed Enteral Feeding for Achieving Full Feeding in Preterm Growth-Restricted Infants: A Randomized Clinical Trial

Optimal enteral nutrition is essential for growth restricted preterm infants because if nutrition remains suboptimal during early days of life, physical and neuro-developmental outcome might be in danger. However, chronic hypoxia during antenatal period makes them susceptible for feeding intolerance and necrotising enterocolitis during post natal period. So this randomized clinical trial was conducted in the department of Neonatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh from January 2018 to June 2019; to evaluate the effect of early versus delayed enteral feeding on preterm growth-restricted infants. During the study period, out of 127 infants with small for gestational age, 50 babies were enrolled and randomly assigned to either early feeding group (n=25) or late feeding group (n=25). Clinical characteristics at trial entry were well balanced between groups. Newborn enrolled in early feeding group reached full feed significantly faster than late feeding group (p=0.001; Hazard ratio 1.24). Early feeding group regained birth weight faster; experienced lesser incidence of neonatal sepsis, experienced less number of feed intolerance, had shorter mean duration of hospital stay and achieved higher weight on post natal age 16th days. All values were statistically significant. Early enteral feeding found to be safe and beneficial in reducing the time to reach full enteral feeding and better weight gain in growth restricted preterm infants.

P323Triage-HF Plus: identification of heart failure and non-heart failure events in an ambulatory population using remote monitoring and the triage heart failure risk score Algorithm

Background/introduction

Previous studies examining the utility of cardiac implantable electronic devices (CIEDs) to remotely monitor heart failure patients for decompensation have not demonstrated an impact on hard end-points. However, a key limitation of these prior studies (REM-HF and MORE-CARE) has been the failure to stratify patients according to their risk of worsening heart failure (WHF) prior to randomization (usual care vs active monitoring). We examined a different approach, using a single manufacturer’s remote monitoring platform, whereby only patients with CIED-derived data indicating the highest risk of WHF are contacted for assessment. The validated ‘Triage Heart Failure Risk Score’ (Triage-HFRS) is a medical algorithm within Medtronic CIEDs that can risk-stratify patients as low-, medium- or high-risk of WHF in the next 30 days based on integrated monitoring of physiological parameters.

Purpose

 This study is the largest prospective evaluation of the Triage-HFRS, and examines the additional role of contacting those patients with a ‘High-Risk’ Triage-HFRS alert by telephone (Triage-HF Plus pathway).

Methods

 Prospective, real-world evaluation of the Triage-HF Plus pathway undertaken between June 2016 and September 2019. 326 high-risk Triage-HFRS transmissions were contacted for telephone triage assessment. Screening questions were designed to identify episodes of WHF and non-heart failure events. Interventions were at the discretion of the clinical practitioner and in line with guideline-directed practice. An additional 3-month consecutive sample of low and medium Triage-HFRS transmissions (control group) were also contacted for telephone triage assessment (n= 98).

Results

Successful telephone contact was made following 245 high-risk Triage-HFRS alerts. Following contact, 194 (79.1%) patients reported an acute medical issue: 137 (70.6%) reported symptoms consistent with worsening heart failure (WHF) requiring intervention; and 57 (29.4%) had an alternative acute medical problem. 51 (26.2%) had no apparent reason for the high score. The sensitivity and specificity of CIED-based remote monitoring to identify any HF and non-HF events requiring intervention was 99.5% (97.2-99.9%) and 65.5% (57.3-73.2%) respectively; positive predictive value was 79.2%. The negative predictive value of a non-high risk score to rule out an acute event was 98.9%. Overall accuracy of the pathway to identify an acute issue (HF or non-HF related) was 84.8%.

Conclusion

The Triage-HF Plus clinical pathway is a potentially useful remote monitoring tool for patients with heart failure. The pathway has high diagnostic accuracy to identify patients with WHF and a wide range of non-HF issues which are just as relevant in a population who often have multiple complex co-morbidities and are known for their high health care utilisation.

Significant Left Main Coronary Artery Disease Does Not Incur Any Additional Risk to the Short Term Outcome of Off Pump Coronary Artery Bypass Grafting Surgery

Coronary artery disease is the most common form of heart disease and single most important cause of premature death in developed countries. Off pump coronary artery bypass grafting surgery has recently became widespread internationally and has produced good clinical outcome even in left main coronary artery disease following off pump coronary artery bypass grafting surgery. A prospective observational study was conducted in the department of Cardiac Surgery, National Heart Foundation Hospital and Research Institute, Dhaka, Bangladesh from January 2015 to September 2016 after fulfillment of enrollment criteria, 428 patients were studied for the purpose of the study and they were grouped in two, significant left main coronary artery disease in group A and non left main coronary artery disease requiring surgery in group B. Comparison of risk factors between groups demonstrates that diabetes mellitus and smoking habit between two groups were almost identical. 69.2% of patient with significant left main coronary artery group were hypertensive and 25.2% were dyslipidaemic in comparison to non left main coronary artery disease group which were 50.9% and 6.5% respectively. Requirement of per operative inotropic support was significantly higher in left main coronary artery group. 33.6% of patient of left main coronary artery group required per operative inotropic support whereas non left main coronary artery group require 24.8%. Postoperative inotropic support, mechanical ventilation time, ICU stay, hospital stay and complication were similar in both these groups. So, we can say that off pump coronary artery bypass grafting surgery for significant left main coronary artery disease is as safe as non left main coronary artery disease.

Ewing Sarcoma With Emphasis on Extra-skeletal Ewing Sarcoma: A Decade's Experience From a Single Centre in India

INTRODUCTION

The diagnosis of Ewing sarcoma family of tumours (ESFT) is challenging, especially in adults and in extra-skeletal or visceral location. Several morphologic mimics with varied treatment options and prognosis confer diagnostic dilemmas. Application of ancillary diagnostic modalities in surgical pathology in clinical routine has enabled accurate diagnosis of ESFT in bone, soft tissues, and viscera.

AIM

The study aims to assess the clinicopathological features including molecular test results of ESFT with emphasis on sex, age, and location, especially extra-skeletal soft tissue and visceral location.

MATERIAL AND METHODS

Data of clinicopathological, molecular tests (wherever performed), diagnosis rendered in 302 ESFT over a decade from our centre were reviewed. Statistical comparison of skeletal and extra-skeletal tumours with reference to age and sex was done using SPSS package. The P value of <.05 was considered significant.

RESULTS

The cohort included 302 ESFTs with 49% skeletal and 51% extra-skeletal tumours. Thigh was most common site among skeletal tumours; chest wall, paraspinal location, and retroperitoneum among soft tissues (39.4%); and kidney, ovary, and cervix among visceral tumours (11.3%). Fluorescence in situ hybridisation for EWSR1 gene rearrangement was positive in 54 patients and reverse-transcriptase polymerase chain reaction in 19 patients. Predominance of male sex, younger age and location in extremities among skeletal tumours and lack of gender predilection, higher age and axial location in extra-skeletal tumours were noted, which were statistically significant. Molecular tests were performed more frequently in extra-skeletal tumours, especially in visceral tumours to establish the diagnosis.

CONCLUSIONS

The study showed statistically significant differences in the age, sex, and location between skeletal and extra-skeletal ESFT. The increased percentage of extra-skeletal tumours especially in viscera was attributed to the increased awareness and availability of ancillary techniques.

Frequency of Early Morbidities in Low Birth Weight Neonates at The Aga Khan University Hospital, Karachi

Background Globally, approximately 14.6% children are born with low birth weight (LBW) annually. In Pakistan, this figure however reaches approximately 16%. Low birth weight infants are vulnerable to develop early morbidities like hypothermia, hypoglycemia, respiratory distress syndrome and hypocalcemia. There is a scarcity of statistics which creates a gap in development of strategies for improving quality of care in developing countries. The aim of our study was to determine the frequency of early morbidities such as respiratory distress syndrome (RDS), hypoglycemia, hypothermia and hypocalcemia in low birth weight neonates. Methodology A prospective descriptive study was conducted via non-probability sampling technique from 1^st April 2016 to 30^th September 2016 at The Aga Khan University Hospital, Karachi. All low birth weight infants, i.e., those with birth weight < 2500 grams were included in this study and observed for early morbidities, including hypothermia, hypoglycemia, hypocalcemia and respiratory distress syndrome. Descriptive analysis was done using SPSS version 22 (IBM Corp., Armonk, NY), mean and standard deviation were determined for quantitative variables, whereas frequency and percentages were calculated for qualitative variables. Results A total of 2082 neonates were born during the study period, of which 271 (13%) were born with low birth weight. One hundred and eighty-five (68.1%) of these LBW neonates were preterm babies while 86 (31.9%) were born at term. Among LBW neonates 137 (51.0%) were males and 134 (49.0%) females. In the study population, hypoglycemia was seen in 17.3%, hypocalcemia in 13.6%, respiratory distress syndrome in 11%, and hypothermia in 2.5%. Conclusion Our study highlighted major early morbidities of LBW neonates, and their association with birth weight, gestational age and gender. Significant association of birth weight was found with hypothermia and hypocalcemia, whereas hypocalcemia and RDS were significantly associated with gestational age. However, none of the early morbidities had significant association with gender. Keeping in perspective the early morbidities in this population we propose that priority be given to providing adequate attention to low birth weight neonates.

P1732The additive value of pre- and post-reperfusion cardiac troponin T levels in risk stratification of patients with ST-segment elevation myocardial infarction

Background

Despite therapeutic advances, mortality rates following ST-segment elevation myocardial infarction (STEMI) are still alarmingly high. There is conflicting evidence regarding the prognostic role of high-sensitivity cardiac troponin T (hs-cTnT) measurements before and after primary percutaneous coronary intervention (PPCI) over traditional predictors of mortality in STEMI patients.

Purpose

To determine the additive prognostic value of pre- and 12h post-PPCI hs-cTnT levels in STEMI patients

Methods

Retrospective longitudinal study including 3,113 consecutive STEMI patients treated with PPCI at a university hospital covering a population of 1.6 million in the North East of England. Clinical, procedural, and laboratory data were prospectively collected during patient hospitalization while hs-cTnT measurements were performed at admission to the catheterization laboratory and at 12h post-PPCI. Median follow-up was 53 months. The study endpoints were in-hospital and overall mortality. Mortality data were obtained from the UK Office of National Statistics.

Results

Admission hs-cTnT >515ng/L (4th quartile) was independently associated with in-hospital mortality [HR=2.39 per highest to lower quartiles; 95% CI: 1.44 to 3.97; p=0.001] after multivariate adjustment for a core clinical model of in-hospital mortality prediction. Likewise, admission hs-cTnT >515ng/L independently predicted overall mortality (HR=1.25 per highest to lower quartiles; 95% CI: 1.00 to 1.57; p=0.044) after adjustment for covariates significantly associated with this endpoint. Admission hs-cTnT correctly reclassified risk for in-hospital death [net reclassification index (NRI)=44.1%, p<0.001) and overall mortality (NRI=60.4%, p<0.001). Conversely, 12h hs-cTnT was not independently associated with mortality.

Conclusion

Admission, but not 12h post-reperfusion, hs-cTnT predicts mortality and improves risk stratification in the PPCI era. These results support the role of hs-cTnT in risk stratification of post-STEMI patients and challenge the cost-effectiveness of routine 12h hs-cTnT measurements.

Factors Leading To Meconium Aspiration Syndrome in Term- and Post-term Neonates

Background

Meconium aspiration syndrome (MAS) is considered a major cause of respiratory morbidity. It is a common issue encountered in the delivery room and newborn nursery. There is a need to identify the factors that lead to MAS to develop strategies to screen such patients at an early stage to decrease the mortality and morbidity. The objective of this study was to determine the factors leading to MAS in neonates delivered at ≥37 weeks of gestational age.

Methods

A cross-sectional study was conducted through non-probability consecutive sampling technique at Liaquat University Hospital, Hyderabad from August 2016 to February 2017. All neonates at ≥37 weeks of gestation with meconium-stained amniotic fluid (MSAF) detected during delivery were included in this study after obtaining informed consent from their parents. The demographic and factors related to MAS were recorded through predesigned proforma and analyzed using SPSS version 22. Mean and standard deviation were determined for quantitative variables whereas frequency and percentages were calculated for qualitative variables.

Results

Overall 136 neonates were included in the study. The mean gestational age was 38 ± 1.43 weeks. The major factors for MAS were detected as fetal distress (67.0%, n = 91), non-reassuring fetal heart rate (54.0%, n = 73), cesarean birth (48.0%, n = 65), intrauterine growth restriction (IUGR; 17.0%, n = 23), and post maturity (12.0%, n = 16).

Conclusion

We conclude that the major factors for MAS are fetal distress, non-reassuring FHR tracing, cesarean birth, IUGR, and post maturity. Screening of such patients at an early stage may minimize morbidity and mortality related to MAS.

Pseudohyperkalemia: Look before you treat

Pseudohyperkalemia is defined as a reported rise in serum potassium concentration along with a normal effective plasma potassium concentration. We present a case report of a 57-year-old gentleman with a history of chronic lymphocytic leukemia, who presented with an elevation in serum potassium along with a normal plasma potassium concentration. Through an exploration of the literature, we demonstrate that pseudohyperkalemia is an important phenomenon to watch for as it may sometimes lead to unnecessary and potentially dangerous treatment.

Estimating uncertainty of target values for DEQAS serum materials

The External Quality Assessment (EQA) scheme for vitamin D metabolites (DEQAS) distributes human serum samples to laboratories across the world to assess their performance in measuring serum total 25-hydroxyvitamin D [25(OH)D], i.e. the sum of the concentrations of serum 25(OH)D₂ and 25(OH)D₃. In 2013 DEQAS, in collaboration with the Vitamin D Standardization Program (VDSP), became an accuracy-based EQAS when the National Institute for Standards and Technology (NIST) began assigning 25(OH)D target values to DEQAS serum samples using their Joint Committee for Traceability in Laboratory Medicine (JCTLM) approved reference measurement procedure (RMP). Historically, NIST has performed 4 determinations of 25-OHD2 and 25-OHD3 on each sample and used the mean values to calculate a single 'target value' for Total 25-OHD against which performance was judged. By definition the target values cannot be exact and each is associated with a level of uncertainty. The total uncertainty (U_NIST) has two components, one from the 25(OH)D₂, and 25(OH)D₃ measurements and the other associated with the calibration procedure. The total combined uncertainty is calculated by adding up these uncertainties. In future, uncertainties will be attached to the target value in each DEQAS serum sample, starting with the next distribution cycle in 2019. Confidence intervals obtained using these uncertainties will allow DEQAS participants to determine if their result agrees with the NIST assigned target value. Furthermore, if the value falls within the confidence interval the laboratory's assay would be regarded as traceable, i.e. standardized, to the NIST RMP.

External Quality Assessment of 24,25-dihydroxyvitamin D3 (24,25(OH)2D3) assays

The discovery that mutations of the CYP24A1 gene are a cause of idiopathic infantile hypercalcemia (IIH) has revived interest in measuring serum 24,25(OH)₂D₃. Several studies have also suggested that a high 25-hydroxyvitamin D₃(25-OHD₃):24,25(OH)₂D₃ ratio might provide additional diagnostic information in the investigation of vitamin D deficiency. Measurement of 24,25(OH)₂D₃ is necessarily restricted to laboratories with mass spectrometry methods although cross reactivity of the metabolite in immunoassays for 25-OHD is a potential cause of misleading results. The international External Quality Assessment (EQA) scheme for vitamin D metabolites (DEQAS) was set up in 1989. In 2013 DEQAS became an accuracy based EQA for 25-OHD with 'target values' assigned by the National Institute of Standards and Technology (NIST) Reference Measurement Procedure (RMP). A pilot scheme for serum 24,25(OH)₂D₃ was started in 2015 and participants were asked to measure the metabolite on each of the 5 samples sent out for 25-OHD. Inter-laboratory agreement was poor but this may reflect methodological differences, in particular different approaches to assay standardization. An important potential contribution to reducing variability among assays was the development by NIST of a 24,25(OH)₂D₃ RMP and its use in assigning values to SRMs 972a, 2973 and 2971, supported by the NIH Office of Dietary Supplements (ODS) as part of the Vitamin D Standardization Program (VDSP) effort.

Critical care usage after major gastrointestinal and liver surgery: a prospective, multicentre observational study

BACKGROUND

Patient selection for critical care admission must balance patient safety with optimal resource allocation. This study aimed to determine the relationship between critical care admission, and postoperative mortality after abdominal surgery.

METHODS

This prespecified secondary analysis of a multicentre, prospective, observational study included consecutive patients enrolled in the DISCOVER study from UK and Republic of Ireland undergoing major gastrointestinal and liver surgery between October and December 2014. The primary outcome was 30-day mortality. Multivariate logistic regression was used to explore associations between critical care admission (planned and unplanned) and mortality, and inter-centre variation in critical care admission after emergency laparotomy.

RESULTS

Of 4529 patients included, 37.8% (n=1713) underwent planned critical care admissions from theatre. Some 3.1% (n=86/2816) admitted to ward-level care subsequently underwent unplanned critical care admission. Overall 30-day mortality was 2.9% (n=133/4519), and the risk-adjusted association between 30-day mortality and critical care admission was higher in unplanned [odds ratio (OR): 8.65, 95% confidence interval (CI): 3.51-19.97) than planned admissions (OR: 2.32, 95% CI: 1.43-3.85). Some 26.7% of patients (n=1210/4529) underwent emergency laparotomies. After adjustment, 49.3% (95% CI: 46.8-51.9%, P<0.001) were predicted to have planned critical care admissions, with 7% (n=10/145) of centres outside the 95% CI.

CONCLUSIONS

After risk adjustment, no 30-day survival benefit was identified for either planned or unplanned postoperative admissions to critical care within this cohort. This likely represents appropriate admission of the highest-risk patients. Planned admissions in selected, intermediate-risk patients may present a strategy to mitigate the risk of unplanned admission. Substantial inter-centre variation exists in planned critical care admissions after emergency laparotomies.

Integrating a diabetes and hypertension case management package within primary health care: a mixed methods feasibility study in Bangladesh

Background

Almost three quarters of non-communicable disease (NCD) deaths, and 82% of premature NCD deaths, occur in low- and middle-income countries. Bangladesh has an estimated 7 million hypertensives and 10 million diabetics, and primary care is struggling to respond. Our aim was to develop and support implementation of a diabetes and hypertension case management package, and assess its appropriateness, feasibility and acceptability in two NCD clinics within two primary-care centres in Bangladesh.

Methods

We used a convergent mixed methods design. We first assessed the level of appropriate hypertension and cardiovascular disease patient management, based on a composite outcome indicator using data from patients’ treatment cards. Appropriate management was primarily informed by International Diabetes Federation (IDF) and World Health Organisation (WHO) guidelines. We then performed qualitative in-depth interviews with doctors and patients to explain these quantitative findings and to understand the challenges to achieving appropriate patient management in the NCD clinics.

Results

Eighty-one newly diagnosed patients were recruited. Over 3 months, 53.1% (95% CI 42.3% to 63.6%) of patients were appropriately managed. We found incomplete diagnosis (especially missing hypertension diagnosis alongside diabetes) and non-provision of follow-up appointments were the main causes of the relatively low level of appropriate management. We conducted interviews with 11 patients and 8 health professionals and found a shortage of human resources, reporting materials, available drugs and diagnostic equipment. This undermined patients’ willingness to attend clinics and doctors’ willingness to offer follow-ups. Hands-on skill-building training was valuable in increasing doctors’ competence for appropriate management, but was seen as a novel training method and faced constraints to implementation.

Conclusions

A clinical guide, skill-based training and recording package can be implemented in routine primary care and can lead to appropriate management of around half of diabetic and hypertensive patients in a low-income country. However, considerable health systems challenges must be addressed before more patients can be managed appropriately.

Outcome of Surgical Repair of Post-Infarction Ventricular Septal Rupture: A Single Center Observational Study

To review the experience of surgical repair of post-infarction ventricular septal rupture (VSR) and analyze the associated outcomes in National Heart Foundation Hospital & Research Institute (NHFH & RI). This retrospective review was performed on 19 consecutive cases who had undergone surgical repair of post-infarction VSR between 2009 and 2017. Continuous variables were summarized as mean plus/minus the standard deviation or median. Categorical variables were expressed as percentage of the sample. Comparison between in-hospital survivors versus non-survivors was performed by Student's t-test and chi-square or Fisher's exact test for continuous and categorical variables respectively. A value of p<0.05 was considered statistically significant. Mean age of survivor and non-survivors were 53.53±9.2 and 56.33±1.5 years consecutively. Anterior VSR 14(73.6%) was more common than posterior VSR 5(26.4%). All patients had significant coronary lesions; the frequency of 1-, 2-, and 3-vessel disease was 22.2%, 27.7% and 50.0% consecutively. The left anterior descending coronary artery was the infarct-related artery in all patients with anterior VSR. Mean cardiopulmonary bypass time was 157±58.6 minutes and 249±78.3 minutes in survivor and non-survivor groups consecutively (p=0.018). Operative mortality within 30 days was 21%. Low output syndrome (LOS), multiple organ failure (MOF), septicemia, tracheostomy and prolonged intensive care unit (ICU) stay were the major factor for survivals. Surgical repair of post-infarction VSR carries a high operative mortality. But, stable hemodynamic at the time of VSR diagnosis is a significant predictor of survival and concomitant coronary artery bypass grafting (CABG) improves early survival.

Comparative Study of Alginate and Omeprazole in Symptomatic Treatment of Non-erosive Gastroesophageal Reflux Disease

Gastroesophageal reflux disease is widely reported most prevalent disease of the gastrointestinal tract. The burden of gastroesophageal reflux disease (GERD) is increasing in Asia and the majority of patients have non-erosive reflux disease. This prospective, open label, non random (consecutive), experimental study was performed due to compare the therapeutic efficacy of alginate and omeprazole in relieving symptoms of non erosive reflux disease (NERD) and was carried out in the Outpatient Department of Gastroenterology, Dhaka Medical College Hospital, Dhaka, Bangladesh from December 2013 to May 2014. Sixty patients were enrolled for this study and were divided into two groups. Among them, 30 subjects were assigned to the omeprazole group (Group I) and 30 subjects to the alginate group (Group II). Omeprazole 20mg enteric coated capsule daily and alginate 10ml three times daily were administered 14 days in this study. In ITT analysis, achieving complete symptom relief (heart burn) was 56.7% in alginate group & 60% in omeprazole group. Statistically which was not significant (p=0.793). In PP analysis, this was 65.4% and 66.7% respectively. In this study, the overall satisfaction of omeprazole & alginate was more than 86% and the mean duration of heart burn free was found 5.0±4.0 days in Group I and 3.65±2.8 days in Group II. The difference was not statistically (p>0.05) significant between two groups in this study. Therapeutic efficacy and safety profiles of alginate were comparable to omeprazole after two weeks treatment in NERD subjects. So alginate may be considered as a relevant and effective alternative medication in non-erosive reflux.

Micro-computed tomography visualization of the vestigial alimentary canal in adult oestrid flies

Oestrid flies (Diptera: Oestridae) do not feed during the adult stage as they acquire all necessary nutrients during the parasitic larval stage. The adult mouthparts and digestive tract are therefore frequently vestigial; however, morphological data on the alimentary canal in adult oestrid flies are scarce and a proper visualization of this organ system within the adult body is lacking. The present work visualizes the morphology of the alimentary canal in adults of two oestrid species, Oestrus ovis L. and Hypoderma lineatum (de Villiers), with the use of non-invasive micro-computed tomography (micro-CT) and compares it with the highly developed alimentary canal of the blow fly Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae). Both O. ovis and H. lineatum adults showed significant reductions of the cardia and the diameter of the digestive tract, an absence of the helicoidal portion of the midgut typical of other cyclorrhaphous flies, and a lack of crop and salivary glands. Given the current interest in the alimentary canal in adult dipterans in biomedical and developmental biology studies, further understanding of the morphology and development of this organ system in adult oestrids may provide valuable new insights in several areas of research.