Cardiac magnetic resonance parameters associated with successful conversion from a single ventricular to a one-and-a-half or biventricular circulation in patients with a hypoplastic right ventricle.

BACKGROUND: Some patients with pulmonary atresia with an intact ventricular septum (PA/IVS) or a left ventricle dominant atrioventricular canal defect (LDAVC) with a hypoplastic right ventricle (RV) and univentricular (1 V) circulation may be candidates for conversion to either a complete biventricular (2 V) repair or a one-and-a-half ventricle repair (1.5 V). We sought to identify pre-operative cardiovascular magnetic resonance (CMR) findings associated with successful conversion from 1V to 1.5V or 2V circulation. METHODS: In this single center retrospective study, subjects with PA/IVS or LDAVC and no conotruncal abnormalities were included if they had a 1 V circulation at the time of CMR followed by a surgical intervention intended to convert them to a 1.5 V or 2 V circulation. Conversion failure was defined as any of the following: (1) oxygen saturation < 90% at the most recent follow-up, (2) conversion back to a 1.5 V or 1 V circulation, or (3) death. RESULTS: In the PA/IVS cohort (n = 15, median age 1.32 years), 10 patients underwent surgical conversion to a 1.5 V circulation and 5 to a 2 V circulation. In the attempted 1.5 V group, there were 2 failures, and these cases had a lower RV mass (p = 0.04). In the attempted 2 V group, there was 1 failure, and no CMR parameters were significantly different compared to the successes. Among the successful 2 V group patients, the minimum RV end-diastolic volume (EDV) was 27 ml/m2. In the LDAVC cohort (n = 15, median age 1.0 years), 1 patient underwent surgical conversion to a 1.5 V circulation and 14 patients to a 2 V circulation. In the attempted 1.5 V group, the 1 conversion was a failure and had an RV EDV of 15 ml/m2. In the attempted 2 V group, there were 2 failures, and these cases had a smaller RV:LV stroke volume ratio (p = 0.05) and a lower RV ejection fraction (p = 0.05) compared to the successes. Among the successful 2 V group patients, the minimum RV EDV was 22 ml/m2. CONCLUSIONS: We identified multiple CMR parameters associated with successful conversion from 1 V circulation to 1.5 V or 2 V circulation in patients with PA/IVS and LDAVC. This information may improve patient selection for conversion procedures and encourage larger studies to better define the role of CMR.

Recognising ligamentous atresia in double aortic arch.

Ligamentous atresia of the left side of a double arch distal to the left subclavian artery is a rare form of vascular ring, which can easily be confused, on transthoracic echocardiography, with the right-sided aortic arch when there is mirror-imaged branching. Because of its rapid acquisition, computed tomographic angiography with three-dimensional reconstruction has now become the modality of choice for accurate diagnosis of the various forms of double aortic arch. It can be performed without sedation in any age group, including neonates. It provides excellent visualisation of the aortic arch and its branching pattern, thus permitting accurate diagnosis and surgical planning. We present a case series of six children with this rare vascular ring assessed using CT, highlighting their outcomes.

Cost-effectiveness of digoxin, pacing, and direct current cardioversion for conversion of atrial flutter in neonates.

IntroductionNewborn atrial flutter can be treated by medications, pacing, or direct current cardioversion. The purpose is to compare the cost-effectiveness of digoxin, pacing, and direct current cardioversion for the treatment of atrial flutter in neonates.Materials and methodsA decision tree model was developed comparing the efficacy and cost of digoxin, pacing, and direct current cardioversion based on a meta-analysis of published studies of success rates of cardioversion of neonatal atrial flutter (age<2 months). Patients who failed initial attempt at cardioversion progressed to the next methodology until successful. Data were analysed to assess the cost-effectiveness of these methods with cost estimates obtained from 2015 Medicare reimbursement rates. RESULTS: The cost analysis for cardioversion of atrial flutter found the most efficient method to be direct current cardioversion at a cost of $10 304, pacing was next at $11 086, and the least cost-effective was digoxin at $14 374. The majority of additional cost, regardless of method, was from additional neonatal ICU day either owing to digoxin loading or failure to covert. Direct current cardioversion remains the most cost-effective strategy by sensitivity analyses performed on pacing conversion rate and the cost of the neonatal ICU/day. Direct current cardioversion remains cost-effective until the assumed conversion rate is below 64.6%. CONCLUSION: The most cost-efficient method of cardioverting a neonate with atrial flutter is direct current cardioversion. It has the highest success rates based on the meta-analysis, shorter length of stay in the neonatal ICU owing to its success, and results in cost-savings ranging from $800 to $4000 when compared with alternative approaches.

Septum primum malposition defect and inferior sinus venosus defect: a rare association.

We present a case of a 2-year-old girl who presented with respiratory distress and umbilical abscess, and was found to have an inferior sinus venosus defect, malposition of the atrial septum primum, absent septum secundum, and anomalous drainage of the right upper and lower pulmonary veins to the right atrium.

A tale of two rings.

We describe a rare case of double vascular ring diagnosed with cardiac magnetic resonance imaging in a patient with ventricular septal defect, pulmonary stenosis, and right aortic arch.

Prevalence and Risk Factors of Iron Deficiency Anemia among the Tribal Residential Adolescent School Students of Odisha: A Cross-Sectional Study.

Background: Globally, anemia is one of the biggest public health challenges. The highest prevalence of anemia is seen among adolescents. Tribal communities are especially at a disadvantage, with several studies documenting a high prevalence of anemia among tribal adolescents. We investigated the prevalence of anemia and its associated risk factors among the tribal residential adolescent school students in Odisha. Material and Methods: In a cross-sectional survey, the prevalence of anemia was estimated by spectrophotometry among adolescents of residential schools in three predominantly tribal districts of Odisha. The severity of anemia was defined as per the World Health Organization classification for adolescents. Results: The mean age of 953 subjects was 13.07 ± 1.48 years. The prevalence of anemia was found to be 37.3%. As per the World Health Organization classification, 19.9% had mild anemia, 16.3% had moderate, and 1% had severe anemia. Consumption of Iron Folic Acid (IFA) was associated with the level of hemoglobin at a statistically significant level. Conclusion: We found that the prevalence of anemia was lower than in similar studies conducted in other parts of the country. Despite poor coverage of beneficiaries with iron and folic acid at the national level, our study showed better compliance and was associated with a significantly higher level of hemoglobin among those who consumed IFA.

Accuracy of Cardiac Magnetic Resonance Imaging in Diagnosing Pediatric Cardiac Masses: A Multicenter Study.

BACKGROUND: After diagnosis of a cardiac mass, clinicians must weigh the benefits and risks of ascertaining a tissue diagnosis. Limited data are available on the accuracy of previously developed noninvasive pediatric cardiac magnetic resonance (CMR)-based diagnostic criteria. OBJECTIVES: The goals of this study were to: 1) evaluate the CMR characteristics of pediatric cardiac masses from a large international cohort; 2) test the accuracy of previously developed CMR-based diagnostic criteria; and 3) expand diagnostic criteria using new information. METHODS: CMR studies (children 0-18 years of age) with confirmatory histological and/or genetic diagnosis were analyzed by 2 reviewers, without knowledge of prior diagnosis. Diagnostic accuracy was graded as: 1) single correct diagnosis; 2) correct diagnosis among a differential; or 3) incorrect diagnosis. RESULTS: Of 213 cases, 174 (82%) had diagnoses that were represented in the previously published diagnostic criteria. In 70% of 174 cases, both reviewers achieved a single correct diagnosis (94% of fibromas, 71% of rhabdomyomas, and 50% of myxomas). When ≤2 differential diagnoses were included, both reviewers reached a correct diagnosis in 86% of cases. Of 29 malignant tumors, both reviewers indicated malignancy as a single diagnosis in 52% of cases. Including ≤2 differential diagnoses, both reviewers indicated malignancy in 83% of cases. Of 6 CMR sequences examined, acquisition of first-pass perfusion and late gadolinium enhancement were independently associated with a higher likelihood of a single correct diagnosis. CONCLUSIONS: CMR of cardiac masses in children leads to an accurate diagnosis in most cases. A comprehensive imaging protocol is associated with higher diagnostic accuracy.

Challenges in Detection of Adolescent Anaemia: Validation of Point-of-Care Device (Mission® plus) for Haemoglobin Measurement among Tribal Residential School Children of Selected Districts of Odisha, India.

BACKGROUND: Screening for anemia among tribal school children has been a challenge. OBJECTIVES: To validate a point-of-care (POC) device (mission® plus hemoglobinometer) to the gold standard method, spectrophotometry. STUDY DESIGN: Cross-sectional study. PARTICIPANTS: The representative sample of 953 tribal adolescents from the residential schools of Odisha. METHODS: Hemoglobin was measured simultaneously by the POC and gold standard method during January to July 2019. The validity of the POC device was measured by sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). The area under the curve was calculated using receiver operating characteristic (ROC) analysis. Concordance of the POC device with the gold standard method was determined by the Bland-Altman plot. The intraclass correlation coefficient (ICC), precision (⍴), a bias correction factor (Cb), and the concordance correlation coefficient were also calculated. Deming regression analysis was performed, and a linear equation was established. RESULTS: The mean age of the study participants was 13.07 (±1.48) years. The prevalence of anemia was 45.54% by the gold standard method. The sensitivity and specificity of the POC device were 94.9% and 56.1%, respectively. PPV and NPVs were 64.4% and 93.0%, respectively. The area under the ROC curve was found to be 0.856. The ICC was 0.887 (95% confidence interval: 0.872-0.901). CONCLUSIONS: Very good reliability/absolute agreement for hemoglobin measurements existed between the POC device and the gold standard method making it suitable as a screening device.

Rapid implementation of a smokers' quitline fax referral service in an urban area.

PURPOSE: To increase use of fax referral services to a state smokers' quitline. DESIGN: Program evaluation. SETTING: A populous urban county. SUBJECTS: Smokers older than 17 years. INTERVENTION: In January 2005, a state-funded smoking cessation center began to offer training and technical assistance to clinical sites to expand tobacco control services. MEASURES: Proportion of each county's smokers referred to quitline. RESULTS: Prior to program onset, only one Bronx provider had made a fax referral to the quitline. In 2006, 943 fax referrals were made, representing 0.5% of all smokers in the county. This was a higher proportion than any other state county with an adult population exceeding 250,000. Bronx smokers are 2.47 times more likely to be fax-referred to the quitline than other smokers in New York. CONCLUSION: A program consisting of training and technical assistance, and emphasizing systems change, can markedly increase providers' use of quitline referral services.

Utility of cardiac imaging in diagnosis of atypical presentation of cardiac fibroma.

Primary cardiac tumours are relatively rare in the paediatric population, with benign tumours accounting for >90% of cases. Cardiac fibromas are rare primary tumours that typically reside in the ventricles. Symptoms are usually the result of blood outflow obstruction or disruption of the cardiac conduction system. They do not typically regress and usually require surgical intervention. In this case, we report a rare finding of a right atrial fibroma in an 18-month-old female who presented with lethargy and vomiting. Chest X-ray revealed an enlarged cardiac silhouette, and follow-up CT showed a 3.7×3.2×3.7 cm hypodense lesion in the right atrium. Cardiac MRI revealed the diagnosis, which was confirmed on pathology.

Contraceptive behavior of couples undergoing sterilization in an Eastern State of India.

BACKGROUND: As a part of a larger study for evaluating the effectiveness of a community-based family welfare program, this study assessed the contraceptive behavior of couples preceding sterilization and termination of pregnancies, if any during the interim period. METHODS: During May-June 2013, a cross-sectional study was undertaken in three districts of Odisha, an eastern state of India with poor maternal health indicators. Using a 15 × 14 cluster design with probability proportionate to size sampling 15 village clusters from each district were selected. Seven beneficiaries from the catchment area of two Accredited Social Health Activist of the selected villages were interviewed (14 respondents from each village) using a pretested predesigned questionnaire. RESULTS: A total of 630 clients with either of the partner having undergone sterilization were interviewed. Male partner having undergone vasectomy was < 1% (n = 3). The mean age (standard error mean [SEM]) of the respondent women was 34.54 ± 0.26 years. The mean age of the women at the time of sterilization was 27.12 (standard deviation [SD], 3.8, SEM 0.15 and median 26.83 years) years. Women as young as 22 years had undergone sterilization. Average family size was 2.81 with about 29 respondents (4.5%) having 5 or more children. The average duration between the last childbirth (LCB) to the date of sterilization was 18.37 months (range: 1-142 months, SD: 24 months, SE: 10 months). Seventy-two percent of the respondents did not use any method of contraception during this period. Methods adopted for contraception among the users was pill (20%) followed by condom (7%), and intrauterine contraceptive device (IUCD) was least used (0.2%). Ten percent of the women had undergone abortion before sterilization either once (7.9%) or more than once (2.1%). CONCLUSION: There was a gross delay in sterilization after LCB. Postpartum sterilization or IUCD were also not used frequently.

Isolated Left Subclavian Artery, Complete Atrioventricular Block, and Tricuspid Atresia in a Neonate.

Isolated left subclavian artery is one of the rarer aortic arch anomalies. It has been associated with other congenital heart diseases, typically tetralogy of Fallot, double-outlet right ventricle, and atrial and ventricular septal defects. Its significant clinical implications include a left-to-right shunt from the vertebrobasilar system, which causes pulmonary overcirculation and subclavian steal. We present an unusual case of a premature infant who was diagnosed prenatally with congenital complete atrioventricular block and tricuspid atresia and was found to have an isolated left subclavian artery postnatally. The patient underwent implantation of a permanent single-chamber epicardial pacing system. To our knowledge, this combination of lesions has not been reported-and in our case, it influenced our surgical planning.

Venous Myocardial Infarction in an Infant with Obstructed Totally Anomalous Pulmonary Venous Drainage and Coronary Sinus Ostial Atresia.

We report a rare causal association between obstructed supracardiac totally anomalous pulmonary venous drainage and coronary sinus ostial atresia. Our 12-week-old patient developed venous myocardial infarction secondary to coronary venous hypertension because her sole route of coronary venous drainage was obstructed. She recovered after the obstruction was relieved by balloon dilation. Surgical repair then included anastomosis of the pulmonary venous confluence to the left atrium, ligation of the vertical vein, and unroofing of the coronary sinus. Coronary sinus ostial atresia is rarely diagnosed before autopsy.

Timing of intravenous immunoglobulin treatment and risk of coronary artery abnormalities in children with Kawasaki disease.

BACKGROUND: Kawasaki disease (KD) is a type of febrile self-limiting systemic vasculitis, which affects the coronary arteries (CA) and may cause cardiac ischemia during childhood and adult life. Intravenous immunoglobulin (IVIG) has become the standard therapy for KD. However, it is still uncertain if CA outcome is associated with the timing of IVIG administration with reference to fever onset. METHODS: The present study was designed to identify the risk for development and delay in resolution of CA abnormalities in association with IVIG administration within or after 10 days of KD onset. A retrospective analysis of clinical signs, laboratory data, and prospectively collected echocardiography (ECHO) results of 106 children hospitalized with KD was utilized. RESULTS: IVIG was administered to 86 (81.1%) patients within 10 days, and 20 (18.9%) patients received the first dose of IVIG after 10 days of illness. Among 23 (21.6%) patients who were diagnosed with CA lesions, 18 had a CA abnormality at initial ECHO, whereas they appeared after IVIG therapy in five patients. The risk for CA lesions on initial ECHO was higher among the patients who were admitted after 10 days of disease onset [odds ratio (OR) = 5.3, 95% confidence interval (CI) = 1.7-15.9] but comparable with the post-IVIG treatment group (OR = 3.1, 95% CI = 0.48-19.8). The age <1 year and erythrocyte sedimentation rate (ESR) > 40 mm/hour were associated with non-resolution of CA lesions within 9 weeks of KD onset. Overall, 95.6% of children had resolution of CA abnormalities within 6 months of onset of KD symptoms. CONCLUSION: The results of this study suggest that although IVIG treatment within 10 days is important to minimize development of cardiac pathology, neither occurrence of CA lesions in IVIG-treated children nor the time frame for resolution of established CA abnormalities was associated with the timing of IVIG administration. Age <1 year and high ESR (>40 mm/hour) predict a delay in resolution of CA lesions among children with KD.

Monitoring data quality in syndromic surveillance: learnings from a resource limited setting.

BACKGROUND: India is in the process of integrating all disease surveillance systems with the support of a World Bank funded program called the Integrated Disease Surveillance System. In this context the objective of the study was to evaluate the components of the Orissa Multi Disease Surveillance System. MATERIALS AND METHODS: Multistage sampling was carried out, starting with four districts, followed by sequentially sampling two blocks; and in each block, two sectors and two health sub-centers were selected, all based on the best and worst performances. Two study instruments were developed for data validation, for assessing the components of the surveillance and diagnostic algorithm. The Organizational Ethics Group reviewed and approved the study. RESULTS: In all 178 study subjects participated in the survey. The case definition of suspected meningitis in disease surveillance was found to be difficult, with only 29.94%, who could be correctly identified. Syndromic diagnosis following the diagnostic algorithm was difficult for suspected malaria (28.1%), 'unusual syndrome' (28.1%), and simple diarrhea (62%). Only 17% could correctly answer questions on follow-up cases, but only 50% prioritized diseases. Our study showed that 54% cross-checked the data before compilation. Many (22%) faltered on timeliness even during emergencies. The constraints identified were logistics (56%) and telecommunication (41%). The reason for participation in surveillance was job responsibility (34.83%). CONCLUSIONS: Most of the deficiencies arose from human errors when carrying out day-to-day processes of surveillance activities, hence, should be improved by retraining. Enhanced laboratory support and electronic transmission would improve data quality and timeliness. Validity of some of the case definitions need to be rechecked. Training Programs should focus on motivating the surveillance personnel.