Spectrum of Alport syndrome in an Indian cohort.

BACKGROUND: Next-generation sequencing has enabled non-invasive diagnosis of type IV collagen disease in clinical settings other than the typical presentation of Alport syndrome (AS). METHODS: We reviewed the clinical and histological records of children diagnosed with Alport syndrome based on next-generation sequencing. Variants on clinical exome sequencing were categorized using ACMG 2015 criteria. RESULTS: During 2015-2023, we found 43 patients (34 boys) with 39 variants in COL4A5 (n = 27), COL4A4 (n = 7), and COL4A3 (n = 5). Thirty, 8, and 5 patients had X-linked, autosomal recessive, and autosomal dominant disease, respectively. The median (IQR) age and eGFR at diagnosis were 10 (7-13) years and 100.1 (59-140) ml/min/1.73 m2, respectively. Fifteen patients were initially diagnosed with steroid-resistant nephrotic syndrome. Alport syndrome was suspected in these patients due to persistent microscopic hematuria, eGFR < 90 ml/min/1.73 m2, characteristic histology, and/or non-response to immunosuppression. Of 26 patients who underwent kidney biopsy, light microscopy revealed focal segmental glomerulosclerosis, minimal change disease, and mesangial proliferative glomerulonephritis in 9, 9, and 8 patients, respectively. Electron microscopy (n = 18) showed characteristic glomerular basement membrane changes and/or foot process effacement in 12 and 16 cases, respectively. Twenty-one patients (48.8%) had high-frequency sensorineural hearing loss, while two had lenticonus. Twelve patients progressed to chronic kidney disease stages 4-5. Median survival (IQR) with eGFR > 30 ml/min/1.73 m2 was 15.6 (13-18) years. CONCLUSIONS: The phenotype of Alport syndrome varies from asymptomatic urinary abnormalities to hematuria, proteinuria and/or low eGFR, and steroid-resistant nephrotic syndrome. Adverse outcomes are common, especially in boys with X-linked disease.

Etiology, clinical profile, and outcomes of crescentic glomerulonephritis in children: a systematic review.

BACKGROUND: Crescentic glomerulonephritis, if not managed promptly, is associated with unsatisfactory outcomes. There are limited studies reporting the outcomes of crescentic glomerulonephritis in children. OBJECTIVES: This systematic review is aimed at synthesizing the data on etiology, clinical profile, and outcomes of crescentic glomerulonephritis in children. DATA SOURCES: We performed a literature search using PubMed, Embase, and Web of Science from inception to January 2024 without language or geographic restrictions. STUDY ELIGIBILITY CRITERIA: Cohort and cross-sectional studies with at least 10 participants reporting etiology, clinical features, and outcomes on crescentic glomerulonephritis in children were considered eligible. PARTICIPANTS AND INTERVENTIONS: Children aged less than 18 years with crescentic glomerulonephritis. STUDY APPRAISAL AND SYNTHESIS METHODS: We used a tool by Hoy et al. for assessing the quality of studies. We calculated pooled estimates using random effect meta-analyses. Primary outcome was the pooled proportion of patients progressing to kidney failure. RESULTS: From 1706 records, we included 36 studies (1548 participants) from 16 countries. Etiology was immune-complex glomerulonephritis in 76% (95% CI 67 to 85), pauci-immune in 19% (13 to 25), and anti-GBM disease in 5% (3 to 7) of patients. Gross hematuria, oliguria, edema, and hypertension were observed in 63% (41 to 82), 57% (34 to 79), 79% (65 to 90), and 64% (49 to 77), respectively. In-hospital mortality, reported in 11 studies, was 7% (4 to 11). Progression to kidney failure and chronic kidney disease was reported in 27% (21 to 33) and 50% (29 to 71) of patients, respectively. Risk factors for kidney failure included oliguria, dialysis requirement at onset, estimated GFR, proportion of fibrous crescents, and pauci-immune glomerulonephritis as the underlying etiology. LIMITATIONS: High heterogeneity in pooled estimates of the outcomes. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS: Immune-complex glomerulonephritis is the most common etiology in children, with edema, hypertension, gross hematuria, and oliguria being the chief presenting manifestations. Almost one in every four patients with crescentic glomerulonephritis progressed to kidney failure. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO registration number CRD42024500515.

Network metanalysis on probiotics in functional constipation in children.

In this correspondence, we raised our concerns about the methodological issues in the recent network meta-analysis by Yang et al. These issues require close attention because such meta-analysis forms the basis of major guidelines and helps clinicians make informed decisions.

MYC Induces Oncogenic Stress through RNA Decay and Ribonucleotide Catabolism in Breast Cancer.

Upregulation of MYC is a hallmark of cancer, wherein MYC drives oncogenic gene expression and elevates total RNA synthesis across cancer cell transcriptomes. Although this transcriptional anabolism fuels cancer growth and survival, the consequences and metabolic stresses induced by excess cellular RNA are poorly understood. Herein, we discover that RNA degradation and downstream ribonucleotide catabolism is a novel mechanism of MYC-induced cancer cell death. Combining genetics and metabolomics, we find that MYC increases RNA decay through the cytoplasmic exosome, resulting in the accumulation of cytotoxic RNA catabolites and reactive oxygen species. Notably, tumor-derived exosome mutations abrogate MYC-induced cell death, suggesting excess RNA decay may be toxic to human cancers. In agreement, purine salvage acts as a compensatory pathway that mitigates MYC-induced ribonucleotide catabolism, and inhibitors of purine salvage impair MYC+ tumor progression. Together, these data suggest that MYC-induced RNA decay is an oncogenic stress that can be exploited therapeutically. Significance: MYC is the most common oncogenic driver of poor-prognosis cancers but has been recalcitrant to therapeutic inhibition. We discovered a new vulnerability in MYC+ cancer where MYC induces cell death through excess RNA decay. Therapeutics that exacerbate downstream ribonucleotide catabolism provide a therapeutically tractable approach to TNBC (Triple-negative Breast Cancer) and other MYC-driven cancers.

Copeptin as a potential biomarker of chronic kidney disease to predict the disease progression in children with chronic kidney disease.

Background: Biomarkers to predict the onset and progression of chronic kidney disease (CKD) in children are lacking, and no such definite biomarkers have been implicated in the diagnosis of CKD. We conducted this study to evaluate copeptin as a CKD marker and predict the disease progression by estimating the copeptin levels at baseline and 12 months follow-up in children with CKD stage 2 and above. Materials and Methods: This prospective single-centre cohort study was conducted in children under 14 years with CKD stages 2-4. Blood and urine samples were collected at enrolment and 1-year follow-up for routine investigations and serum copeptin, cystatin C and urinary neutrophil gelatinase-associated lipocalcin (uNGAL) estimation. Results: A total of 110 children (60 cases and 50 controls) were enrolled in the study. The mean estimated glomerular filtration rate (eGFR) of cases was 58.3 ± 18.7 ml/min/1.73 m2. Among the cases, there was a significant rise in the serum copeptin levels from baseline 483.08 ± 319.2 pg/ml to follow-up at 1 year, that is, 1046.82 ± 823.53 pg/ml (P < 0.0001). A significant difference was noted in the baseline values of serum cystatin C, that is, 1512.98 ± 643.77 ng/ml and 719.68 ± 106.96 ng/ml (P < 0.0001), and uNGAL, that is, 13.53 ± 11.72 and 1.76 ± 2.37 ng/ml (P < 0.0001) between the cases and controls. There was no significant correlation (correlation coefficient = 0.10) between change in eGFR and copeptin levels during 12 months of follow-up. Conclusion: No significant correlation was found between the change in eGFR and copeptin levels during 12 months of follow-up. This can be due to the slow deterioration of renal functions, as most of the cases had underlying congenital anomalies of the kidney and urinary tract (CAKUT), which is known to have a slow progression of CKD and a small sample size.

RAM Cannula versus Short Binasal Prongs for Non-invasive Ventilation in Preterm Infants: An Updated Systematic Review and Meta-analysis.

OBJECTIVES: To compare the efficacy and safety of RAM cannula with short binasal prongs (SBPs) as nasal interfaces in preterm infants requiring nasal continuous positive airway pressure (nCPAP) or nasal intermittent positive pressure ventilation (NIPPV). METHODS: The authors searched electronic databases (Medline, Embase, and Web of Science) and trial registries from inception until March 15, 2024, for randomized controlled trials (RCTs) comparing the RAM cannula with SBP for delivering nCPAP/NIPPV. They performed a random-effects meta-analysis using RevMan 5.4 software. The primary outcome was failure of nCPAP/NIPPV. Secondary outcomes included nasal injury, mechanical ventilation, air leaks, and mortality. RESULTS: Five RCTs (825 participants) were included. There was no significant difference in nCPAP/NIPPV failure (RR: 1.04; 95% CI: 0.58 to 1.87) or the need for invasive mechanical ventilation (RR: 1.23; 95% CI: 0.75 to 2.01) between the RAM cannula and SBP groups (low to very low certainty). Compared with infants in the SBP group, those in the RAM cannula group had a significantly lower incidence of moderate to severe nasal injury [(5 RCTs, 825 participants; RR: 0.34; 95% CI: 0.18 to 0.66); low certainty] and any nasal injury [(RR: 0.44; 95% CI: 0.26 to 0.76; very low certainty)]. There was no significant difference in the other clinical outcomes. CONCLUSIONS: In comparison to SBP, the RAM cannula may have little to no effect on nCPAP/NIPPV failure, but the evidence is very uncertain. Low-certainty evidence suggests that the use of RAM cannula possibly results in reduction in moderate to severe nasal trauma in preterm infants receiving nCPAP/NIPPV.

A Pilot Study to Show Longitudinal Trends in Health-Related Quality of Life (HRQOL) in a Cohort of Breast Cancer Patients Under Treatment at a Tertiary Healthcare Facility in Bhubaneswar, India.

Introduction: Breast cancer incidence has overtaken that of cervical cancer among women in India according to the Globacon 2020 reports. Cancer management is also being streamlined at the Center and district levels, such that comprehensive integrated management is offered to cases to optimize the best results. In breast cancer, there are two modes of surgery namely Breast Conservation Surgery(BCS) and Modified Radical Mastectomy (MRM) now over 2 decades, with recommended Chemo radiation depending on the extent of the disease. HRQOL (Health-related Quality of Life) studies have been done in these groups of patients, due to their added relevance in terms of the loss of a vital organ like the breast. EORTC 30 and BR23 are standardized and detailed tools that have been seen to estimate QOL, keeping in mind a whole array of domains that are affected by the disease. Objective: To evaluate the "Body Image" and "Quality of life" (QOL) in operated breast cancer patients using BR -23 and EORTC - QLQ- questionnaire at 1month (after surgery) and then 3 to 4 months after surgery. Methods: This article attempts to draw a comparison among of EORTC30 and BR 23 scores calculated for 46 breast cancer patients operated during the pandemic time in one center and consenting to repeat the measures at pre-decided three time periods during the course of management. Results: No significant differences are noted in the mean scores for EORTC 30 and BR23 for the two types of surgeries. Visit 1 scores for both modes of surgery are over 75 and by Visit 3 become less than 55 for EORTC. BR 23 (which measures the symptoms core to Breast cancer) at all 3 visits are between 45 to 55. Friedman's test shows that the scores are not significant for age groups, the number of living children, or lifestyle factors like alcohol or tobacco chewing, though quadratic graphs depict the distinct variations in the scores at the 3 times reinforcing the need for follow-up of mental health in these subjects at intervals. The study largely brings out a strong need for repeated follow-up and counseling at regular and short intervals, post-surgery in breast cancer patients. EORTC 30 and BR 23 tools are excellent to use to essay information on the mental health of patients with breast cancer.

Acute Kidney Injury in Neonates: A Meta-Analysis.

BACKGROUND AND OBJECTIVE: There is a paucity of pooled synthesized data on the epidemiology of neonatal acute kidney injury (AKI). Our objective with this study is to systematically assess the worldwide incidence of AKI in neonates. METHODS: We searched 3 electronic databases (Embase, PubMed, Web of Sciences) from January 2004 to December 2022 without language restrictions. We included cohort and cross-sectional studies that reported the incidence of AKI or associated mortality in neonates. Eligible studies had at least 10 participants and used standard criteria (Acute Kidney Injury Network/Pediatric Risk, Injury, Failure, Loss, End Stage Renal Disease (pRIFLE)/ Kidney Disease Improving Global Outcomes) to define AKI. Two authors independently retrieved data on demographic characteristics, clinical setting, and outcomes (incidence and AKI-associated mortality) using a semi-structured proforma and assessed the risk of bias. We used a random-effects meta-analysis to calculate pooled estimates with 95% confidence intervals. RESULTS: We included 201 studies (98 228 participants) from 45 countries. The incidence of any stage AKI was 30% (95% confidence interval 28-32), and that of severe AKI was 15% (14-16). Overall, AKI-associated mortality was 30% (27-33). The odds of mortality were higher (odds ratio 3.4; 2.9-4.0) in neonates with AKI compared with those without AKI. We found that perinatal asphyxia, sepsis, patent ductus arteriosus, necrotizing enterocolitis, and nephrotoxic medications were significant risk factors for AKI. Significant heterogeneity in the pooled estimates was a limitation of this study. CONCLUSIONS: AKI was observed in one-third of the neonates and was associated with increased risk of mortality. The incidence of AKI was almost similar in neonates with perinatal asphyxia and sepsis, but mortality was higher in the former group.

Role of nebulised magnesium sulfate in treating acute asthma in children: a systematic review and meta-analysis.

OBJECTIVES: To review the efficacy of nebulised magnesium sulfate (MgSO4) in acute asthma in children. METHODS: The authors searched Medline, Embase, Web of Science and Cochrane Library for randomised controlled trials (RCTs) published until 15 December 2023. RCTs were included if they compared the efficacy and safety of nebulised MgSO4 as a second-line agent in children presenting with acute asthma exacerbation. A random-effects meta-analysis was performed, and the Risk of Bias V.2 tool was used to assess the biases among them. RESULTS: 10 RCTs enrolling 2301 children with acute asthma were included. All trials were placebo controlled and administered nebulised MgSO4/placebo and salbutamol (±ipratropium bromide). There was no significant difference in Composite Asthma Severity Score between the two groups (6 RCTs, 1953 participants; standardised mean difference: -0.09; 95% CI: -0.2 to +0.02, I2=21%). Children in the MgSO4 group have significantly better peak expiratory flow rate (% predicted) than the control group (2 RCTs, 145 participants; mean difference: 19.3; 95% CI: 8.9 to 29.8; I2=0%). There was no difference in the need for hospitalisation, intensive care unit admission or duration of hospital stay. Adverse events were minor, infrequent (7.3%) and similar among the two groups. CONCLUSIONS: There is low-certainty evidence that nebulised MgSO4 as an add-on second-line therapy for acute asthma in children does not reduce asthma severity or a need for hospitalisation. However, it was associated with slightly better lung functions. The current evidence does not support the routine use of nebulised MgSO4 in paediatric acute asthma management. PROSPERO REGISTRATION NUMBER: CRD42022373692.

Imparting child nutritional assessment skills among medical students using hybrid problem-based learning approach in a community setting.

Background: Malnutrition affects up to a third of children in India, with severe and acute malnutrition prevalent among under five children. Nutritional assessment skills for detecting malnutrition in children in primary care settings are vital. Hybrid problem-based learning (HPBL) is an innovative, collaborative, and adaptable instructional learning strategy that can be used to teach medical students clinical skills in a community setting. Methods: A two-month quasi-experimental study was undertaken in a rural setting with third-year medical students. Faculty members were sensitized and subject experts developed a training module addressing the knowledge, attitude, communication, and practice domains. The students underwent a 3-week training module where pre-testing, case presentation, and group formation in first week, an anchoring lecture, tutorial and self-directed learning and role-play by students in subsequent week, and in last week, case discussion, post-testing, and feedback rounds were done. Results: In all domains, knowledge (3.8, 0.01), practice (4.3, 0.01), attitude and communication (3.7, 0.01), and proportional satisfactory responses, the HPBL approach resulted in a significant improvement in nutritional assessment competency. Teachers preferred the practical and engaging character of the approach, stating that doubts and questions were better addressed and that they would use it to teach similar topics. Conclusion: HPBL is an excellent teaching method for clinical skills, like nutritional assessment in simulated/field settings. The novel teaching-learning approach was well received by students and faculty members. Learning outcomes and satisfaction rates enhanced in students and faculty were encouraged to apply the approach to other topics.

Effect of oropharyngeal colostrum therapy on neonatal sepsis in preterm neonates: A systematic review and meta-analysis.

Various studies have shown that oropharyngeal colostrum application (OPCA) is beneficial to preterm neonates. We performed a systematic review and meta-analysis to assess whether OPCA reduces the incidence of culture-proven neonatal sepsis in preterm neonates. Randomized controlled trials comparing OPCA with placebo or standard care in preterm neonates were included. Medline, Embase, Web of Science, Cumulated Index to Nursing and Allied Health Literature, Scopus, and CENTRAL were searched for studies published up to June 15, 2023. We used the Cochrane Risk of Bias tool, version 2, for risk of bias assessment, the random-effects model (RevMan 5.4) for meta-analysis, and Gradepro software for assessing the certainty of evidence. Twenty-one studies involving 2393 participants were included in this meta-analysis. Four studies had a low risk of bias, whereas seven had a high risk. Oropharyngeal colostrum significantly reduced the incidence of culture-proven sepsis (18 studies, 1990 neonates, risk ratio [RR]: 0.78, 95% confidence interval [95% CI]: 0.65, 0.94), mortality (18 studies, 2117 neonates, RR: 0.73, 95% CI: 0.59, 0.90), necrotizing enterocolitis (NEC) (17 studies, 1692 neonates, RR: 0.59, 95% CI: 0.43, 0.82), feeding intolerance episodes (four studies, 445 neonates, RR: 0.59, 95% CI: 0.38, 0.92), and the time to full enteral feeding (19 studies, 2142 neonates, mean difference: -2 to 21 days, 95% CI: -3.44, -0.99 days). There was no reduction in intraventricular hemorrhage, retinopathy of prematurity, bronchopulmonary dysplasia, ventilator-associated pneumonia, neurodevelopmental abnormalities, hospital stay duration, time to full oral feeding, weight at discharge, pneumonia, and duration of antibiotic therapy. The certainty of the evidence was high for the outcomes of culture-positive sepsis and mortality, moderate for NEC, low for time to full enteral feeding, and very low for feeding intolerance. OPCA reduces culture-positive sepsis and mortality (high certainty), NEC (moderate certainty), and time to full enteral feeding (low certainty) in preterm neonates. However, scarcity of data from extremely premature infants limits the generalizability of these results to this population.

Management of Urinary Tract Infections and Vesicoureteric Reflux: Key Updates From Revised Indian Society of Pediatric Nephrology Guidelines 2023.

Non-specific symptoms and difficulty in collecting urine specimens make the diagnosis of urinary tract infection (UTI) challenging in children. However, timely diagnosis and initiation of therapy are essential to prevent complications. Children with recurrent UTIs require detailed evaluation and follow-up for optimal management. We report key updates from the revised evidence-based practice guidelines of the Indian Society of Pediatric Nephrology for UTIs and primary vesicoureteric reflux.

The HSP90-MYC-CDK9 network drives therapeutic resistance in mantle cell lymphoma.

Brexucabtagene autoleucel CAR-T therapy is highly efficacious in overcoming resistance to Bruton's tyrosine kinase inhibitors (BTKi) in mantle cell lymphoma. However, many patients relapse post CAR-T therapy with dismal outcomes. To dissect the underlying mechanisms of sequential resistance to BTKi and CAR-T therapy, we performed single-cell RNA sequencing analysis for 66 samples from 25 patients treated with BTKi and/or CAR-T therapy and conducted in-depth bioinformatics™ analysis. Our analysis revealed that MYC activity progressively increased with sequential resistance. HSP90AB1 (Heat shock protein 90 alpha family class B member 1), a MYC target, was identified as early driver of CAR-T resistance. CDK9 (Cyclin-dependent kinase 9), another MYC target, was significantly upregulated in Dual-R samples. Both HSP90AB1 and CDK9 expression were correlated with MYC activity levels. Pharmaceutical co-targeting of HSP90 and CDK9 synergistically diminished MYC activity, leading to potent anti-MCL activity. Collectively, our study revealed that HSP90-MYC-CDK9 network is the primary driving force of therapeutic resistance.

Cell cycle arrest induces lipid droplet formation and confers ferroptosis resistance.

How cells coordinate cell cycling with cell survival and death remains incompletely understood. Here, we show that cell cycle arrest has a potent suppressive effect on ferroptosis, a form of regulated cell death induced by overwhelming lipid peroxidation at cellular membranes. Mechanistically, cell cycle arrest induces diacylglycerol acyltransferase (DGAT)-dependent lipid droplet formation to sequester excessive polyunsaturated fatty acids (PUFAs) that accumulate in arrested cells in triacylglycerols (TAGs), resulting in ferroptosis suppression. Consequently, DGAT inhibition orchestrates a reshuffling of PUFAs from TAGs to phospholipids and re-sensitizes arrested cells to ferroptosis. We show that some slow-cycling antimitotic drug-resistant cancer cells, such as 5-fluorouracil-resistant cells, have accumulation of lipid droplets and that combined treatment with ferroptosis inducers and DGAT inhibitors effectively suppresses the growth of 5-fluorouracil-resistant tumors by inducing ferroptosis. Together, these results reveal a role for cell cycle arrest in driving ferroptosis resistance and suggest a ferroptosis-inducing therapeutic strategy to target slow-cycling therapy-resistant cancers.

Evidence-based clinical practice guideline for management of urinary tract infection and primary vesicoureteric reflux.

We present updated, evidence-based clinical practice guidelines from the Indian Society of Pediatric Nephrology (ISPN) for the management of urinary tract infection (UTI) and primary vesicoureteric reflux (VUR) in children. These guidelines conform to international standards; Institute of Medicine and AGREE checklists were used to ensure transparency, rigor, and thoroughness in the guideline development. In view of the robust methodology, these guidelines are applicable globally for the management of UTI and VUR. Seventeen recommendations and 18 clinical practice points have been formulated. Some of the key recommendations and practice points are as follows. Urine culture with > 104 colony forming units/mL is considered significant for the diagnosis of UTI in an infant if the clinical suspicion is strong. Urine leukocyte esterase and nitrite can be used as an alternative screening test to urine microscopy in a child with suspected UTI. Acute pyelonephritis can be treated with oral antibiotics in a non-toxic infant for 7-10 days. An acute-phase DMSA scan is not recommended in the evaluation of UTI. Micturating cystourethrography (MCU) is indicated in children with recurrent UTI, abnormal kidney ultrasound, and in patients below 2 years of age with non-E. coli UTI. Dimercaptosuccinic acid scan (DMSA scan) is indicated only in children with recurrent UTI and high-grade (3-5) VUR. Antibiotic prophylaxis is not indicated in children with a normal urinary tract after UTI. Prophylaxis is recommended to prevent UTI in children with bladder bowel dysfunction (BBD) and those with high-grade VUR. In children with VUR, prophylaxis should be stopped if the child is toilet trained, free of BBD, and has not had a UTI in the last 1 year. Surgical intervention in high-grade VUR can be considered for parental preference over antibiotic prophylaxis or in children developing recurrent breakthrough febrile UTIs on antibiotic prophylaxis.

Cost analysis of telemedicine use in paediatric nephrology-the LMIC perspective.

BACKGROUND: The overall cost of managing chronic diseases is a significant barrier to accessing complete and timely healthcare, especially in rural and geographically isolated areas. This cost disparity becomes more pronounced in the case of children and more so in under-resourced regions of the world. In the era of COVID-19, as the need for physical distancing increased, there was a transition in approach to healthcare provision to telemedicine consultations. This study evaluates the cost saving using teleconsultations in a paediatric nephrology clinic. METHODS: This prospective cohort study was conducted at AIIMS Jodhpur, a tertiary care centre in western Rajasthan from March 2021 to October 2022. All consecutive paediatric (29 days-18 years) patients attending telemedicine services for kidney-related illness were enrolled. Basic demographic details were collected. Cost analysis was done after 6 months, regarding perceived cost savings for the patient and family by using telehealth for follow-up during 6 months starting from enrolment. RESULTS: A total of 112 patients were enrolled; 266 teleconsultations attended; 109 patients who could be followed up saved INR 457,900 during 6 months of follow-up. The average cost saving was INR - 1577/patient/visit. Patients saved 4.99% of the family income (median 2.16% (IQR 0.66-5.5)). The highest expenditure per visit was incurred for food and transport. The median distance from the residence to the clinic was 122.5 km (IQR 30-250). Over the 6-month study period, patients saved a travel distance of 83,274 km (743 km/patient). CONCLUSIONS: The use of telemedicine as a follow-up method helps save significant costs and distances travelled by patients. A higher-resolution version of the Graphical abstract is available as Supplementary information.

Blueprint designing and validation for competency-based curriculum for theory assessment in community medicine.

Background: Blueprint provides a base for assessment by assigning proportionate weightage to various content areas and helps the paper setter to construct a uniform and valid assessment. This study aimed to design and validate a blueprint for theory in Community Medicine as per the new curriculum for Medical Undergraduates in India. Methods: Blueprint in community medicine was designed by assigning impact score (I) and frequency score (F) for the competencies. Blueprint was validated using the Content Validity Index (CVI), and inter-rater agreement for subject experts using Fleiss' kappa statistics was calculated. Feedback from faculty and students was obtained afterward to assess the postimplementation response. Results: Blueprint was designed by an expert group where impact score and frequency score were assigned to 146 competencies in the theory of Community Medicine. In Delphi survey I, 63.2% of subject experts responded, while in Delphi survey II, a response rate of 58.3% was achieved. Value of the Fleiss' Kappa test for an inter-rater agreement was 0.68, i.e. "substantial agreement," while CVI among the raters came out to be 0.86, i.e. overall valid assessment. Feedback of faculty (n = 11) suggested that the blueprint was helpful and standardized the paper setting, whereas feedback from students (n = 138) depicted that it helped in preparing for exams, and they would recommend it to other students. Conclusion: Validated blueprint by consensus of subject experts has impact score and frequency score along with topic-wise distribution of marks for the convenience of faculty and its utility is well proven among learners too.

Use of exemplars-based feedforward to improve the performance of medical students in constructed response assessment.

Background: Exemplars are the graded responses to theory questions from previous examinations and are considered as means to guide students about what is valued by assessors; hence giving feed forward to students before the exam and developing self-regulated learning among students. The present study was undertaken to compare the effect on performance of students between intervention (didactic lecture and exemplar) and control group (didactic lecture). Methods: This study was an interventional study conducted among 256 students of a medical college in Rajasthan, India. Participants were randomized to either the control group A or to the interventional group B. Outcomes included a post intervention test evaluating the knowledge gained after the session and students 'attitudes about the same. A focus group discussion was conducted investigating the perceptions. The feedback from faculty was also taken. Results: The mean post test score of intervention group was found to be 6.1 ± 1.74 and of the control group was 5.5 ± 1.6; significantly higher with p-value of 0.03. Out of 128 participants in group B, majority (n = 94,73%) believed that exemplars improve learning and created their interest in topic (n = 78, 60.9%). Most of students (66%) were of the opinion that exemplars should be regularly used with didactic lectures. Key themes identified from focus group were: advantages of the exemplars-based feedforward, challenges in implementation and ways to improve the method. Conclusion: Exemplars improved the performance of students. The faculty members and students agreed that they are an effective tool to enhance learning.

Periodic Rotation versus Continuous Application of Same Nasal Interface for Non-invasive Respiratory Support in Preterm Neonates: A Systematic Review and Meta-analysis.

OBJECTIVES: To review whether the periodic rotation of nasal mask with binasal prongs is superior to continuous application of either of the interfaces in preterm infants on non-invasive positive pressure respiratory support. METHOD: The authors searched Medline, CINAHL, Embase, Web of Science, and CENTRAL for randomized controlled trials (RCTs) comparing periodic rotation of the two interfaces (mask or prongs) against the continuous application of either, in preterm infants on nasal continuous positive airway pressure (nCPAP) or nasal intermittent positive pressure ventilation (NIPPV). They performed a random-effects meta-analysis using RevMan 5.4. The primary outcome was the incidence of moderate to severe nasal injury. Other outcomes included any nasal injury, need for invasive ventilation, duration of respiratory support, hospital stay, and mortality. RESULTS: Four RCTs (520 participants) were included. There was no difference in the incidence of moderate to severe nasal injury between periodic rotation vs. continuous nasal mask (3 RCTs, 293 participants; RR: 1.75, 95% CI: 0.73-4.19), or periodic rotation vs. continuous binasal prongs (3 RCTs, 296 participants; RR: 0.40, 95% CI: 0.14-1.11). Periodic rotation lowered the incidence of any grade nasal injury compared to continuous binasal prongs (RR: 0.61, 95% CI: 0.49-0.75) but not compared to continuous nasal mask (RR: 1.38, 95% CI: 0.92-2.06). Periodic rotation was associated with longer non-invasive respiratory support (compared to prongs) and prolonged hospital stay (compared to masks). There were no significant differences in other clinical outcomes. CONCLUSIONS: Among preterm infants receiving non-invasive respiratory support, periodically rotating a nasal mask with short binasal prongs may not be superior to the continuous application of nasal masks.