Search

OBJECTIVES The phenotypic features and morphogenesis of the ‘sinus venosus defect’ remain controversial. The phenotypic features are anomalous systemic connections of 1 or more pulmonary veins that retain their left atrial connection, usually associated with a biatrial connection of the superior caval vein. Cases with these features, however, have not always been described as sinus venosus defects. METHODS We reviewed the findings documented in the literature from 11 patients with a biatrial connection of the superior caval vein, most reported following an autopsy examination. We compared these findings with the anatomical details of 50 patients undergoing surgical correction in our centre, paying particular attention to the override of the superior caval vein. RESULTS In only two-thirds of those undergoing surgery did the superior caval vein override the rims of the oval fossa, with the degree of override >50% in only 2 individuals. It is only these latter 2 cases that are directly comparable to the reported cases of biatrial connection of the superior caval vein. CONCLUSIONS Our comparisons provide new insights into the developmental background and phenotypic features of the superior sinus venosus defect. The defects exist because of the anomalous systemic connection of the pulmonary veins that retain their left atrial connections but not always in association with a biatrial connection of the superior caval vein. In extreme cases, nonetheless, they can underscore the connection of the caval vein to the morphologically left atrium, frequently described previously as a ‘biatrial connection’. The sinus venosus defect is better considered a venovenous malformation than a septal defect.

Objectives This study sought to compare the efficacy of ivabradine and amiodarone in the management of postoperative junctional ectopic tachycardia (JET) after cardiac surgery in children. Background JET is a serious arrhythmia occurring in children after cardiac surgery and requires aggressive management. Amiodarone has been conventionally used in its treatment. Recent studies have reported the utility of ivabradine in this regard. Methods In this open-label randomized controlled trial, 94 children (age ≤18 years) who developed postoperative JET were allocated to receive either amiodarone or ivabradine. The primary endpoint was restoration of normal sinus rhythm. Results Sinus rhythm was achieved in 43 out of the 46 patients (93.5%) in the amiodarone group and 46 out of the 48 patients (95.8%) in the ivabradine group (mean difference of treatment effect: 2.3%; 95% confidence interval: −6.7% to 11.5%). The median (interquartile range) time taken to achieve sinus rhythm conversion was similar in both the groups: 21.5 (17–30.2) hours versus 22 (13.4–38.5) hours (p = 0.36)]. The time taken to rate control of JET was significantly less in the amiodarone group: median 7.0 (5.5–9.5) hours versus 8.0 (5.8–10.8) hours (p = 0.02)]. No drug-related adverse events were observed in the ivabradine group. Conclusions Oral ivabradine is not inferior to intravenous amiodarone in converting postoperative JET to sinus rhythm. There was no difference in time taken to sinus rhythm conversion between the groups, although the rate control was earlier in patients who received amiodarone. Monotherapy with ivabradine may be considered as an alternative to amiodarone in the management of postoperative JET. (Comparison of Two Drugs, Ivabradine and Amiodarone, in the Management of Junctional Ectopic Tachycardia, an Abnormality in Cardiac Rhythm in Patients Under 18 years Who Undergo Cardiac Surgery: CTRI/2018/08/015182 )

A young man in his 20s presented to the emergency department with a 2-week history of dyspnoea and fever. His medical history was remarkable for recurrent episodes of fever with arthralgia in childhood f. Clinical examination revealed pedal oedema, bounding pulses and a holodiastolic murmur. Additionally, chest auscultation revealed bibasilar crackles. The ECG showed sinus tachycardia with features of left ventricular volume overload. Two-dimensional transthoracic echocardiography was performed and …

Aortopulmonary window (APW) seen in association with anomalous origin of left coronary artery from pulmonary artery (ALCAPA) is extremely uncommon. When faced with this combination, ALCAPA usually goes undetected since most of the clinical and echocardiographic features of ALCAPA, including ventricular dysfunction are absent due to co-existent pulmonary hypertension. Herein we report a 5-month-old child with a large APW in whom a preoperative computed tomography angiogram facilitated the diagnosis of ALCAPA. The case is described for its rarity and the challenges faced during management. Also, it is extremely crucial that this coronary anomaly is identified and corrected during surgery, since failure to do so results in unforeseen postoperative ventricular dysfunction.

BACKGROUND Ruptured interventricular septal aneurysms are rare. We present a case of an interventricular membranous septal aneurysm in a 7-year-old boy who presented with features of congestive heart failure, 2 years after undergoing a patch closure of perimembranous ventricular septal defect and tricuspid valve repair. Material and methods and results: Transthoracic echocardiography suggested the presence of an aneurysm that has ruptured into the right ventricle (RV), however, the precise origin of the aneurysm could not be identified on echocardiography. Subsequently, a computed tomography (CT) angiography was done which revealed that the aneurysm was originating from the membranous interventricular septum with evidence of rupture into the RV inflow. DISCUSSION Due to its close proximity to the aortic annulus, an aneurysm of the membranous interventricular septum may be confused with a sinus of Valsalva aneurysm, especially if the former is associated with aortic regurgitation. CONCLUSION This case highlights the importance of CT in the precise differentiation of these two abnormalities.

Double chambered right ventricle is a rare cardiac defect characterised by an obstructive hypertrophied muscle bundle in the right ventricle. The common associated lesions are ventricular septal defect followed by sub-aortic membrane. We report a child who had coarctation of aorta in association with double chambered right ventricle. This case is being reported for its rarity and challenges in management.

Isolated systemic arterial supply to a normal lung, a type of bronchopulmonary vascular malformation, is a rare cause of extracardiac left-to-right shunt. We describe such a case that was successfully managed by transcatheter closure of the anomalous arterial supply to otherwise normal lung.

Congenital heart defects (CHD) are the most common form of birth anomalies. About one-fifth of these are critical requiring very early intervention, the classical examples being transposition of great arteries or obstructive total anomalous pulmonary venous connection. On the other hand, relatively milder and simpler lesions, such as small ventricular septal defects or mild pulmonary stenosis, may either not need intervention at all or intervened as and when deemed necessary. Apart from the cardiovascular effects, some CHDs can significantly affect the physical growth and neurodevelopment of the child. Each type of CHD has unique hemodynamic effects and the intervention is, by and large, timed based on the severity and natural history of each cardiac lesion. Some lesions have a "limited" time window beyond which they may become unsuitable for any intervention. Hence it is critical to intervene at the appropriate time so as to prevent the untoward effects of CHDs and at the same time to avoid unnecessary interventions.

Background and aim: On the basis of previously published accounts, coupled with our own experience, we have assessed the surgical approaches to patients with isomeric atrial appendages. Methods: We reviewed pertinent published studies on surgical treatment of individuals with isomeric atrial appendages, with the pertinent surgical details provided by most of the manuscripts. Results: Half of patients with right isomerism, and two-thirds of those with left isomerism have bilateral superior caval veins. Azygos extension of the inferior caval vein is reported in three-quarters of those with left isomerism. The coronary sinus is universally absent in right isomerism, along with totally anomalous pulmonary venous connection, and is absent in two-fifths of those with left isomerism.. Univentricular atrioventricular connections are expected in up to three-quarters of those with right isomerism. Atrioventricular septal defect is reported in up to four-fifths, more frequently in right isomerism, with such patients typically having discordant ventriculoatrial connections or double outlet right ventricle. Reported mortalities extend to 85% for those with right, and 50% for those with left isomerism. In right isomerism, mortality is up to 54% for systemic-to-pulmonary arterial shunting, up to 75% for univentricular repair, and up to 95% for repair of totally anomalous pulmonary venous connection itself. No more than one-quarter had undergone Fontan completion, with reported mortalities of 21%. Conclusion: Early surgical results are satisfactory in patients with left isomerism, but disappointing for those with right. Recent advances in cardiac and liver transplantation may offer improved survival.

Background and Aim: We showed in our anatomical review, ventricular septal defects existing as multiple entities can be considered in terms of three major subsets. We address here the diagnostic challenges, associated anomalies, the role and techniques of surgical instead of interventional closure, and the outcomes. including reinterventions, for each subset. Methods: We reviewed 80 published investigations, noting radiographic findings, and the results of clinical imaging elucidating the location, number, size of septal defects, and associated anomalies, and the effect of severe pulmonary hypertension. Results: Overall, perioperative mortality for treatment of residual multiple defects has been cited to be between zero and 14.2%, with morbidity estimated between 6% to 13%. Perioperative mortality is twice as high for perimembranous compared to muscular defects, with need for reoperation is over four times higher. Perventricular hybrid approaches are useful for closure of high anterior or apical defects. Overall, results have been unsatisfactory. Pooled data reveals incidences between 2.8% and 45% for device-related adverse events. Currently, however, outcomes cannot be assessed on the basis of the different anatomical sub-sets. Conclusions: We have addressed the approaches, and the results, of therapeutic treatment in terms of co-existing discrete defects, the Swiss-cheese septum, and the arrangement in which a solitary apical muscular defect gives the impression of multiple defects when viewed from the right ventricular aspect. Treatment should vary according to the specific combination of defects.

BACKGROUND AND AIM Although the retroaortic left brachiocephalic vein in isolation is of no clinical importance, its recognition in the setting of associated lesions is important. We sought to address issues concerning the influence of isomerism, the establishment of diagnosis, and its importance in various surgical and interventional procedures. METHODS A total of 80 published clinical and necropsy studies in the setting of a retroaortic left brachiocephalic vein described 250 patients. Clinical presentation, radiographic, ultrasonographic findings, contrast echocardiography, computed-tomographic angiocardiography, magnetic resonance imaging, and angiocardiography provided the diagnostic information prior to considering the surgical approach to the associated cardiac anomalies. RESULTS Among 250 reported cases, three-quarters had associated congenitally malformed hearts. Of these 189 patients, all but seven had usual atrial arrangement. Right isomerism was reported in five patients and two patients having left isomerism. Almost two-thirds had tetralogy of Fallot or its variants, over four-fifths had malformations involving the outflow tract, two-thirds had a right aortic arch with two patients having a cervical aortic arch, and onepatient had double aortic arch. Various innovative individualized surgical procedures were employed with an overall perioperative mortality of 3.4%. CONCLUSIONS Although the retroaortic left brachiocephalic vein is asymptomatic, its recognition during clinical investigation should raise the possibility of an association with other malformations, especially right aortic arch, ventricular septal defect, and anomalies of the outflow tracts. We submit that an increased appreciation of this venous anomaly may facilitate surgical planning, endovascular procedures, placement of central venous lines, and transvenous pacemakers.

We describe a 3-month-old infant with transposition of great arteries and restrictive foramen ovale who presented with severe cyanosis. Child had a large thrombus causing near-total occlusion of the inferior caval vein. An emergency atrial septoplasty was performed via internal jugular venous access. The case emphasises the technical challenges faced while performing this procedure through jugular approach and plausible solutions to overcome these challenges.

Background and aim The morphological variations when one, or both, of the atrial chambers is subdivided, are many and varied. We sought to address clinical presentations, potentially misdiagnosed cases, diagnostic modalities, surgical approaches, and outcomes of this "family" of uncommon lesions. Methods A total of 193 published investigations were synthesized. Diagnostic information was provided by clinical presentation, and multimodality imaging studies. Results Almost three-quarters of patients with divided atrial chambers present during infancy with severe pulmonary hypertension and cardiac failure. Associated cardiac and extra-cardiac defects are present in between half and nine-tenths of cases. Acquired division of the left atrium has been reported after the Fontan operation, orthotopic cardiac transplantation, and complicated aortic valvar infective endocarditis. Surgery under cardiopulmonary bypass remains the definitive treatment. Balloon dilation may be considered in anatomically compatible variants in the setting of cardiac failure and pregnancy as a bridge todefinitive treatment. Overall, mortality has been cited between nil to 29%. Presentation during infancy, associated congenital anomalies, pulmonary hypertension, and surgery in the previous era, have been the reported causes of death. The operative survivors have long-term favourable outcomes, with near normal cardiac dimensions and low risk of recurrence. While asymptomatic patients with division of the right atrium do not need treatment, surgical resection of the dividing partition under cardiopulmonary bypass is recommended in symptomatic patients with complex anatomy, the spinnaker malformation, or associated cardiac anomalies. Balloon dilation may be considered in uncomplicated patients with less obstructive lesions. Hybrid intervention and endoscopic robotic correction also have been performed. Conclusions Resection of the dividing shelf allows the survivors to regain near normal dimensions with a low risk of recurrence. We submit that an increased appreciation of the anatomic background to division of the atrial chambers will contribute to improved surgical management.

Preterm neonates – especially those with prolonged duration of intensive care stay – are prone to develop fungal endocarditis. Majority of these children have a stormy course, however, a few may be relatively asymptomatic. Occasionally these vegetations may be large and pedunculated, originating from the atrial septum, mimicking a cardiac myxoma on echocardiography.

We report a case of 6-week-old boy with a mixed variety of totally anomalous pulmonary venous connection where the common channel had a dual drainage into the coronary sinus and left brachiocephalic vein respectively. The case also highlights the role of preoperative computed tomography angiography in demonstrating the exact pulmonary venous anatomy, course and identifying obstruction, when present.

Background Costs can be a major barrier to medication adherence in low and middle-income countries and are an important target for policy-level interventions. The use of benzathine penicillin G (BPG) for secondary prevention of rheumatic heart disease (RHD) averts substantial morbidity and mortality, yet the total out-of-pocket costs for patients receiving this intervention are unknown. Objective To estimate the total out-of-pocket costs for obtaining BPG prophylaxis among RHD patients in India. Methods We prospectively collected self-reported drug-, transportation-, and provider-related costs for secondary prophylaxis among RHD patients presenting for follow-up to a tertiary care centre in New Delhi, India. Monthly costs were estimated by adjusting unit costs by frequency of drug administration. Results The cost data provided by 420 patients [mean age (±SD) 11.6 (±2.9) years] was analysed. Majority of the patients were male (65.2%), hailed from rural areas (87.1%), and belonged to lower socioeconomic strata (73.3%). The median monthly total out-of-pocket costs (IQR) for obtaining BPG injections was Indian rupee (INR) 62.5 (42.5–117.0). The median costs for procuring the drug (IQR) was INR 34.0(30.0–39.0). Whereas median costs (IQR) for health care provider and transportation was INR 16.0 [0–32.0]) and INR 11 [0–31.0] respectively. When expressed as mean (SD), the costs for transportation constituted 50% of the total costs, whereas the mean cost for drug procurement and drug administration constituted 30% and 22% of the total costs respectively. Conclusion RHD patients receiving BPG prophylaxis incur substantial out-of-pocket costs, with transportation costs constituting nearly half of the total expenditures. National investments in RHD control must be strategically directed at improving health care access and drug supply in order to lower the total costs of secondary prophylaxis and improve adherence rates.

We report a case of a 6-month-old girl with double outlet right ventricle where a right aortic arch with an abnormally posterior brachio-bicephalic trunk on the left side closely resembled an incomplete double-aortic-arch with distal left arch atresia on computed tomography (CT) angiography. The case highlights the role of preoperative CT angiography in demonstrating aortic arch and arch vessel anatomy in patients with complex congenital heart diseases.

We report a case of a 2-month-old boy with tricuspid and pulmonary atresia with a unique configuration of "kissing" atrial appendages. The case highlights the importance of computed tomography angiography in identifying such anomalies associated with complex congenital heart defects.

This study sought to compare the efficacy of ivabradine and amiodarone in the management of postoperative junctional ectopic tachycardia (JET) after cardiac surgery in children.JET is a serious arrhythmia occurring in children after cardiac surgery and requires aggressive management. Amiodarone has been conventionally used in its treatment. Recent studies have reported the utility of ivabradine in this regard.In this open-label randomized controlled trial, 94 children (age ≤18 years) who developed postoperative JET were allocated to receive either amiodarone or ivabradine. The primary endpoint was restoration of normal sinus rhythm.Sinus rhythm was achieved in 43 out of the 46 patients (93.5%) in the amiodarone group and 46 out of the 48 patients (95.8%) in the ivabradine group (mean difference of treatment effect: 2.3%; 95% confidence interval: -6.7% to 11.5%). The median (interquartile range) time taken to achieve sinus rhythm conversion was similar in both the groups: 21.5 (17-30.2) hours versus 22 (13.4-38.5) hours (p = 0.36)]. The time taken to rate control of JET was significantly less in the amiodarone group: median 7.0 (5.5-9.5) hours versus 8.0 (5.8-10.8) hours (p = 0.02)]. No drug-related adverse events were observed in the ivabradine group.Oral ivabradine is not inferior to intravenous amiodarone in converting postoperative JET to sinus rhythm. There was no difference in time taken to sinus rhythm conversion between the groups, although the rate control was earlier in patients who received amiodarone. Monotherapy with ivabradine may be considered as an alternative to amiodarone in the management of postoperative JET. (Comparison of Two Drugs, Ivabradine and Amiodarone, in the Management of Junctional Ectopic Tachycardia, an Abnormality in Cardiac Rhythm in Patients Under 18 years Who Undergo Cardiac Surgery: CTRI/2018/08/015182).

We aimed to compare the performance of pulse-oximetry screening in detecting nonductus-dependent cyanotic congenital heart defects (CCHDs).In a prospective cross-sectional study, we recorded post ductal saturation of neonates (48 h old) born at a community hospital in northern India. Subsequently, all underwent clinical examination and echocardiogram by a trained cardiologist. A saturation95% was considered a "failed" screen.Ten neonates were identified to have nonductus-dependent CCHD on echocardiogram, five of whom had passed pulse-oximetry screen. This translated to a sensitivity of 50% (95% confidence interval [CI] 23.7%-76.3%) and a positive predictive value of 0.08 (95% CI 0.03-0.2), both of which were significantly less compared to that in ductus-dependent congenital heart defect.Up to half of the nonductus-dependent CCHD may be missed if screened only using pulse oximetry. Parents should not be reassured regarding the absence of CCHD only based on a "pass" in pulse-oximetry screening.

This is vancomycin induced infusion syndrome on the back of a man in his 20s (fig 1). Fig 1 Vancomycin infusion (500 mg/h) was given to treat Streptococcus viridans infective endocarditis, but 30 minutes after initiation the …

Acute rheumatic fever (ARF) and its sequelae, Rheumatic heart disease (RHD), contribute significantly to the cardiovascular morbidity and mortality in developing countries. Generally considered a disease of poverty and poor socio-economic conditions, RHD affects the population at the most productive phase of their life. The diagnostic criteria for ARF have been constantly updated to improve the sensitivity. The diagnosis of ARF was entirely clinical however, recently echocardiographic evidence has been added as a major criterion. The disease seems to be on the decline in India, but recent studies using echocardiography have shown high prevalence of RHD among school children. The focus of management has been on prompt recognition and treatment of streptococcal pharyngitis and preventing recurrences of ARF with long-term antibiotic prophylaxis. However, emphasis should be placed on the appropriate management of patients with established RHD, in order to limit the RHD related mortality.

The issue of operability in patients with shunt lesions and raised pulmonary vascular resistance is contentious. Several reports suggest that patients traditionally considered inoperable may be operated after treatment with targeted drug therapy for pulmonary arterial hypertension. We reviewed all the published literature of “treat and repair” approach to gain more insights into the utility of this approach. A critical appraisal of the published literature suggests that this approach is less established for patients with post tricuspid shunts, and for patients with pre-tricuspid shunts with modestly elevated indexed pulmonary vascular resistance (possibly greater than 11 WU.m 2 ). Targeted drug therapy may be able to extend the therapeutic window in carefully selected patients, but its use as a routine in this setting seems unwarranted.