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Fulltext Acceptability of Just-in-Time Teaching amongst medical students: a pilot study

De S, Nagandla K, Kanagasabai S

Education in Medicine Journal, 2014;6(1):11-19.
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Introduction: Just-in-Time Teaching (JiTT) is a novel method of teaching-learning used in various disciplines of science and humanities. It is a technique that scaffolds the students learning process by reducing the cognitive load which is the load related to the executive control of working memory. Just in time teaching underpins the concept that expertise in learning originates from the knowledge already stored in long term memory and with subsequent interaction between the learner and teacher motivates enhanced active learning and optimizes the intellectual performance.
Objective: The objective of the study is to assess the acceptability of JiTT over traditional lecture teaching among the medical students.
Method: In a cross sectional pilot study, three hundred thirty five students participated in a questionnaire based study that grades the various aspects of the traditional lecture series. After the implementation of JiTT method for a period of four months, three hundred two students completed the questionnaire, grading the same variables for JiTT. The analysis was done by using SPSS version 11 applying Paired t test and McNemar's Test.
Result: The results of our study highlighted that JiTT technique was perceived superior to traditional teaching with statistically significant outcomes in the clarity of the topic (p=0.003,) duration of the session (p=0.002), knowledge gained and orientation for exams (p=0.044). The students perceived JiTT method as less monotonous (p=0.005) increasing their alertness during these sessions (p=0.002).
Conclusion: We therefore propose that Just-in-Time Teaching method is a more interactive and acceptable teaching-learning tool shifting the nature of teaching to a more student-centric approach as perceived by the medical students. This is the first pioneer study on JiTT to be performed on undergraduate medical students so far.
Fulltext Oral Hypoglycemic Agents in pregnancy: An Update

Kavitha N, De S, Kanagasabai S

J Obstet Gynaecol India, 2013 Apr;63(2):82-7.
PMID: 24431611 DOI: 10.1007/s13224-012-0312-z

INTRODUCTION: Traditionally, insulin has been the gold standard in the management of Type 2 diabetes in pregnancy and gestational diabetes. However, insulin therapy can be inconvenient because of the needs for multiple injections, its associated cost, pain at the injection site, need for refrigeration, and skillful handling of the syringes. This has led to the exploration of oral hypoglycemic agents as an alternative to insulin therapy.
OBJECTIVES: This review examines and evaluates the evidences on the efficacy, safety, and current recommendations of oral hypoglycemic agents.
CONCLUSION: The evidence of this study supports the use of glyburide and metformin in the management of Type 2 diabetes and gestational diabetes with no increased risk of neonatal hypoglycemia or congenital anomalies. The safety of these oral hypoglycemic agents are limited to the prenatal period and more randomized controlled trials are required to provide information on the long-term follow up on neonatal and cognitive development.
Desmopressin acetate (DDAVP) for preventing and treating acute bleeds during pregnancy in women with congenital bleeding disorders

Karanth L, Barua A, Kanagasabai S, Nair S

Cochrane Database Syst Rev, 2015 Sep 09.
PMID: 26350784 DOI: 10.1002/14651858.CD009824.pub3

BACKGROUND: Congenital bleeding disorders can cause obstetric haemorrhage during pregnancy, labour and following delivery. Desmopressin acetate is found to be an effective drug which can reduce the risk of haemorrhage and can also stop bleeding in certain congenital bleeding disorders. Its use in pregnancy has been controversial. Hence beneficial and adverse effects of desmopressin acetate in these groups of pregnant women should be evaluated.This is an update of a Cochrane review first published in 2013.
OBJECTIVES: To determine the efficacy of desmopressin acetate in preventing and treating acute bleeds during pregnancy in women with congenital bleeding disorders.
SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Coaguopathies Trials Register comprising references identified from comprehensive electronic database searches and handsearches of relevant and abstract books of conferences proceedings. We also searched for any randomised controlled trials in a registry of ongoing trials and the reference lists of relevant articles and reviews.Date of most recent search: 18 June 2015.
SELECTION CRITERIA: Randomised and quasi-randomised controlled trials investigating the efficacy of desmopressin acetate versus tranexamic acid or factor VIII or rFactor VII or fresh frozen plasma in preventing and treating congenital bleeding disorders during pregnancy were eligible.
DATA COLLECTION AND ANALYSIS: No trials matching the selection criteria were eligible for inclusion.
MAIN RESULTS: No trials matching the selection criteria were eligible for inclusion.
AUTHORS' CONCLUSIONS: The review did not identify any randomised controlled trials investigating the relative effectiveness of desmopressin acetate for bleeding during pregnancy in women with congenital bleeding disorders. In the absence of high quality evidence, clinicians need to use their clinical judgement and lower level evidence (e.g. from observational trials) to decide whether or not to treat women with congenital bleeding disorders with desmopressin acetate.Given the ethical considerations, future randomised controlled trials are unlikely. However, other high quality controlled studies (such as risk allocation designs, sequential design, parallel cohort design) to investigate the risks and benefits of using desmopressin acetate in this population are needed.
Fulltext Maternal and foetal outcomes following natural vaginal versus caesarean section (c-section) delivery in women with bleeding disorders and carriers

Karanth L, Kanagasabai S, Abas AB

Cochrane Database Syst Rev, 2017 08 04;8:CD011059.
PMID: 28776324 DOI: 10.1002/14651858.CD011059.pub3

BACKGROUND: Bleeding disorders are uncommon but may pose significant bleeding complications during pregnancy, labour and following delivery for both the woman and the foetus. While many bleeding disorders in women tend to improve in pregnancy, thus decreasing the haemorrhagic risk to the mother at the time of delivery, some do not correct or return quite quickly to their pre-pregnancy levels in the postpartum period. Therefore, specific measures to prevent maternal bleeding and foetal complications during childbirth, are required. The safest method of delivery to reduce morbidity and mortality in these women is controversial. This is an update of a previously published review.
OBJECTIVES: To assess the optimal mode of delivery in women with, or carriers of, bleeding disorders.
SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Coagulopathies Trials Register, compiled from electronic database searches and handsearching of journals and conference abstract books. We also searched the Cochrane Pregnancy and Childbirth Group's Trials Register as well as trials registries and the reference lists of relevant articles and reviews.Date of last search of the Group's Trials Registers: 16 February 2017.
SELECTION CRITERIA: Randomised controlled trials and all types of controlled clinical trials investigating the optimal mode of delivery in women with, or carriers of, any type of bleeding disorder during pregnancy were eligible for the review.
DATA COLLECTION AND ANALYSIS: No trials matching the selection criteria were eligible for inclusion MAIN RESULTS: No results from randomised controlled trials were found.
AUTHORS' CONCLUSIONS: The review did not identify any randomised controlled trials investigating the safest mode of delivery and associated maternal and foetal complications during delivery in women with, or carriers of, a bleeding disorder. In the absence of high quality evidence, clinicians need to use their clinical judgement and lower level evidence (e.g. from observational trials, case studies) to decide upon the optimal mode of delivery to ensure the safety of both mother and foetus.Given the ethical considerations, the rarity of the disorders and the low incidence of both maternal and foetal complications, future randomised controlled trials to find the optimal mode of delivery in this population are unlikely to be carried out. Other high quality controlled studies (such as risk allocation designs, sequential design, and parallel cohort design) are needed to investigate the risks and benefits of natural vaginal and caesarean section in this population or extrapolation from other clinical conditions that incur a haemorrhagic risk to the baby, such as platelet alloimmunisation.
Fulltext Pemphigus vulgaris in a pregnant woman and her neonate

Ibrahim SB, Yashodhara BM, Umakanth S, Kanagasabai S

BMJ Case Rep, 2012;2012.
PMID: 22744241 DOI: 10.1136/bcr.02.2012.5850

A 23-year-old pregnant woman in her second trimester of pregnancy presented with blisters on the face, abdomen and the leg. Based on the clinical presentation and skin biopsy (histopathology and direct immunofluorescence) the diagnosis of pemphigus vulgaris was established. The child born to this patient also had similar skin lesions. The lesions in the mother and the child improved after treatment. The authors report a rare case of pemphigus vulgaris in a pregnant lady and neonatal pemphigus in her child, both of whom were treated successfully.
Fulltext Desmopressin acetate (DDAVP) for preventing and treating acute bleeds during pregnancy in women with congenital bleeding disorders

Karanth L, Barua A, Kanagasabai S, Nair NS

Cochrane Database Syst Rev, 2019 02 13;2:CD009824.
PMID: 30758840 DOI: 10.1002/14651858.CD009824.pub4

BACKGROUND: Congenital bleeding disorders can cause obstetric haemorrhage during pregnancy, labour and following delivery. Desmopressin acetate (DDAVP) is found to be an effective drug which can reduce the risk of haemorrhage and can also stop bleeding in certain congenital bleeding disorders. Its use in pregnancy has been controversial. Hence beneficial and adverse effects of DDAVP in these groups of pregnant women should be evaluated.This is an update of a Cochrane Review first published in 2013 and updated in 2015.
OBJECTIVES: To evaluate the efficacy and safety of DDAVP in preventing and treating acute bleeding in pregnant women with bleeding disorders.
SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Coaguopathies Trials Register comprising references identified from comprehensive electronic database searches and handsearches of relevant and abstract books of conferences proceedings. We also searched several clinical trial registries and grey literature (27 August 2017).Date of most recent search of the Cochrane Cystic Fibrosis and Genetic Disorders Group's Coaguopathies Trials Register: 01 October 2018.
SELECTION CRITERIA: Randomised and quasi-randomised controlled trials investigating the efficacy of DDAVP versus tranexamic acid or factor VIII or rFactor VII or fresh frozen plasma in preventing and treating congenital bleeding disorders during pregnancy were eligible.
DATA COLLECTION AND ANALYSIS: No trials matching the selection criteria were eligible for inclusion.
MAIN RESULTS: No trials matching the selection criteria were eligible for inclusion.
AUTHORS' CONCLUSIONS: No randomised controlled trials were identified investigating the relative effectiveness of DDAVP for bleeding during pregnancy in women with congenital bleeding disorders. In the absence of high-quality evidence, clinicians need to use their clinical judgement and lower level evidence (e.g. from observational trials) to decide whether or not to treat women with congenital bleeding disorders with DDAVP.Given the ethical considerations, future randomised controlled trials are unlikely. However, other high-quality controlled studies (such as risk allocation designs, sequential design, parallel cohort design) to investigate the risks and benefits of using DDAVP in this population are needed.Given that there are unlikely to be any trials published in this area, this review will no longer be regularly updated.
Anti-D administration after spontaneous miscarriage for preventing Rhesus alloimmunisation

Karanth L, Jaafar SH, Kanagasabai S, Nair NS, Barua A

Cochrane Database Syst Rev, 2013 Mar 28;2013(3):CD009617.
PMID: 23543581 DOI: 10.1002/14651858.CD009617.pub2

BACKGROUND: During pregnancy, a Rhesus-negative (Rh-negative) woman may develop antibodies if her fetus is Rh-positive, which can cause fetal morbidity or mortality in following pregnancies, if untreated.
OBJECTIVES: To assess the effects of administering anti-D immunoglobulin (Ig) after spontaneous miscarriage in a Rh-negative woman, with no anti-D antibodies.
SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 December 2012).
SELECTION CRITERIA: Randomised controlled trials (RCT) in Rh-negative women without antibodies who were given anti-D Ig following spontaneous miscarriage compared with no treatment or placebo treatment following spontaneous miscarriage as control.
DATA COLLECTION AND ANALYSIS: Two review authors independently assessed trials for inclusion and trial quality. Two review authors extracted data and checked it for accuracy.
MAIN RESULTS: We included one RCT, involving 48 women who had a miscarriage between eight to 24 weeks of gestation. Of the 19 women in the treatment group, 14 had therapeutic dilatation & curettage (D&C) and five had spontaneous miscarriage; of the 29 women in the control group, 25 had therapeutic D&C and four had spontaneous miscarriage. The treatment group received 300 µg anti-D Ig intramuscular injection and were compared with a control group who received 1 cc homogenous gamma globulin placebo.This review's primary outcomes (development of a positive Kleihauer Betke test (a test that detects fetal cells in the maternal blood; and development of RhD alloimmunisation in a subsequent pregnancy) were not reported in the included study.Similarly, none of the review's secondary outcomes were reported in the included study: the need for increased surveillance for suspected fetal blood sampling and fetal transfusions in subsequent pregnancies, neonatal morbidity such as neonatal anaemia, jaundice, bilirubin encephalopathy, erythroblastosis, prematurity, hypoglycaemia (low blood sugar) in subsequent pregnancies, maternal adverse events of anti-D administration including anaphylactic reaction and blood-borne infections.The included study did report subsequent Rh-positive pregnancies in three women in the treatment group and six women in the control group. However, due to the small sample size, the study failed to show any difference in maternal sensitisation or development of Rh alloimmunisation in the subsequent pregnancies.
AUTHORS' CONCLUSIONS: There are insufficient data available to evaluate the practice of anti-D administration in an unsensitised Rh-negative mother after spontaneous miscarriage. Thus, until high-quality evidence becomes available, the practice of anti-D Immunoglobulin prophylaxis after spontaneous miscarriage for preventing Rh alloimmunisation cannot be generalised and should be based on the standard practice guidelines of each country.