To analyze findings and trends on serial electrocardiograms (ECGs) in multisystem inflammatory syndrome in children (MIS-C) associated with coronavirus disease taken during the course of illness and ...at follow-up.
We included all children presenting with MIS-C at a single center with 3 or more ECGs taken during the course of their illness. We measured ECG intervals (PR, QRSd, and QTc) and amplitudes (R-, S-, and T-waves) on each ECG and documented any arrhythmias and ST-segment changes.
A majority of children (n = 42, 67%) showed ECG changes. The most common findings were low QRS amplitudes and transient T-wave inversion. ST changes were uncommon and included ST-segment elevation consistent with pericarditis in 1 child and acute coronary ischemia in 1 child. Arrhythmias were seen in 13 children (21%) but were benign with the exception of 1 child who was compromised by an atrial tachycardia requiring support with extracorporeal membrane oxygenation. No children were found to have high-grade atrioventricular block.
MIS-C is associated with electrocardiographic changes over the course of the illness, with low amplitude ECGs on presentation, followed by transient T-wave inversion, particularly in the precordial leads. There was a low prevalence of ST-segment changes and tachyarrhythmias.
To analyze findings and trends on serial electrocardiograms (ECGs) in multisystem inflammatory syndrome in children (MIS-C) associated with coronavirus disease taken during the course of illness and ...at follow-up.
We included all children presenting with MIS-C at a single center with 3 or more ECGs taken during the course of their illness. We measured ECG intervals (PR, QRSd, and QTc) and amplitudes (R-, S-, and T-waves) on each ECG and documented any arrhythmias and ST-segment changes.
A majority of children (n = 42, 67%) showed ECG changes. The most common findings were low QRS amplitudes and transient T-wave inversion. ST changes were uncommon and included ST-segment elevation consistent with pericarditis in 1 child and acute coronary ischemia in 1 child. Arrhythmias were seen in 13 children (21%) but were benign with the exception of 1 child who was compromised by an atrial tachycardia requiring support with extracorporeal membrane oxygenation. No children were found to have high-grade atrioventricular block.
MIS-C is associated with electrocardiographic changes over the course of the illness, with low amplitude ECGs on presentation, followed by transient T-wave inversion, particularly in the precordial leads. There was a low prevalence of ST-segment changes and tachyarrhythmias.
Abstract
Aims
Following the peak of the UK COVID-19 epidemic, a new multisystem inflammatory condition with significant cardiovascular effects emerged in young people. We utilized multimodality ...imaging to provide a detailed sequential description of the cardiac involvement.
Methods and Results
Twenty consecutive patients (mean age 10.6 ± 3.8 years) presenting to our institution underwent serial echocardiographic evaluation on admission (median day 5 of illness), the day coinciding with worst cardiac function (median day 7), and the day of discharge (median day 15). We performed cardiac computed tomography (CT) to assess coronary anatomy (median day 15) and cardiac magnetic resonance imaging (CMR) to assess dysfunction (median day 20). On admission, almost all patients displayed abnormal strain and tissue Doppler indices. Three-dimensional (3D) echocardiographic ejection fraction (EF) was <55% in half of the patients. Valvular regurgitation (75%) and small pericardial effusions (10%) were detected. Serial echocardiography demonstrated that the mean 3D EF deteriorated (54.7 ± 8.3% vs. 46.4 ± 8.6%, P = 0.017) before improving at discharge (P = 0.008). Left main coronary artery (LMCA) dimensions were significantly larger at discharge than at admission (Z score –0.11 ± 0.87 vs. 0.78 ± 1.23, P = 0.007). CT showed uniform coronary artery dilatation commonly affecting the LMCA (9/12). CMR detected abnormal strain in all patients with global dysfunction (EF <55%) in 35%, myocardial oedema in 50%, and subendocardial infarct in 5% (1/20) patients.
Conclusions
Pancarditis with cardiac dysfunction is common and associated with myocardial oedema. Patients require close monitoring due to coronary artery dilatation and the risk of thrombotic myocardial infarction.
Multi-system inflammatory syndrome in children (MIS-C) causes widespread inflammation including a pancarditis in the weeks following a COVID infection. As we prepare for further coronavirus surges, ...understanding the medium-term cardiac impacts of this condition is important for allocating healthcare resources. A retrospective single-center study of 67 consecutive patients with MIS-C was performed evaluating echocardiographic and electrocardiographic (ECG) findings to determine the point of worst cardiac dysfunction during the admission, then at intervals of 6–8 weeks and 6–8 months. Worst cardiac function occurred 6.8 ± 2.4 days after the onset of fever with mean 3D left ventricle (LV) ejection fraction (EF) 50.5 ± 9.8%. A pancarditis was typically present: 46.3% had cardiac impairment; 31.3% had pericardial effusion; 26.8% demonstrated moderate (or worse) valvar regurgitation; and 26.8% had coronary dilatation. Cardiac function normalized in all patients by 6–8 weeks (mean 3D LV EF 61.3 ± 4.4%,
p
< 0.001 compared to presentation). Coronary dilatation resolved in all but one patient who initially developed large aneurysms at presentation, which persisted 6 months later. ECG changes predominantly featured T-wave changes resolving at follow-up. Adverse events included need for ECMO (n = 2), death as an ECMO-related complication (n = 1), LV thrombus formation (n = 1), and subendocardial infarction (n = 1). MIS-C causes a pancarditis. In the majority, discharge from long-term follow-up can be considered as full cardiac recovery is expected by 8 weeks. The exception includes patients with medium sized aneurysms or greater as these may persist and require on-going surveillance.
Subaortic stenosis (SAS) can present as various types of obstruction of the left ventricular outflow tract (LVOT) below the level of the aortic valve. Even though corrective surgery has been ...identified as the most effective treatment, SAS more frequently reoccurs requiring reoperation in a significant proportion of the patients. Previous studies have focused on predictors of recurrence in various subgroups of patients with SAS, but rarely in the overall population of patients with SAS. The aim of this study was to determine the predictors of recurrence of SAS after initial corrective surgery.
Patients from the database of the Congenital Cardiology Department of the University Hospital of Southampton with significant SAS requiring corrective surgery were included in the study. Data retrieved were obtained and used to determine the predictors of SAS recurrence after the initial corrective surgery.
Eighty-two patients (paediatric, n = 72 and adult, n = 10) who underwent initial successful resection were included in the analysis. Thirty patients required reoperation for recurrent SAS. These were significantly younger (median age 3.0 vs 6.7 years, P = 0.002). The recurrence of SAS was more common in patients with an interrupted aortic arch (23.3% vs 3.8%, P = 0.010) and unfavourable left ventricle geometry (43.3% vs 7.6%, P < 0.001), with steeper aortoseptal angle (131.0° ± 8.7° vs 136.1° ± 8.6°, P = 0.030), shorter distance between the point of obstruction of the LVOT and the aortic valve annulus in systole and diastole (median 4.30 vs 5.90 mm, P = 0.003 and 3.65 vs 4.95 mm, P = 0.006, respectively) and in those who had higher residual peak and mean LVOT gradients postoperatively (29.3 ± 16.0 vs 19.8 ± 10.7 mmHg, P = 0.006 and 15.9 ± 8.3 vs 10.1 ± 5.8 mmHg, P = 0.002, respectively). Overall, the presence of an interrupted aortic arch odds ratio (OR) 10.34, 95% confidence interval (CI) 1.46-73.25; P < 0.019 and unfavourable left ventricle geometry (OR 10.42, 95% CI 1.86-58.39; P < 0.008) could independently predict reoperation for SAS after initial successful resection.
Patients who have initial corrective surgery for SAS at a younger age, unfavourable left ventricle geometry, an interrupted aortic arch and higher early postoperative LVOT gradients are more likely to have recurrent SAS requiring reoperation.
BackgroundThe majority of children and young people affected by COVID-19 have remained asymptomatic or suffered mild illnesses. However throughout the pandemic patients with a novel rare but severe ...disease phenotype, Paediatric Inflammatory Multisystem Syndrome Temporally associated with SARS-CoV-2 (PIMS-TS)1 continue to need hospital admission. The importance of considering the wider differential such as malignancies should be highlighted.ObjectivesTo establish the range of diagnoses of children admitted to a tertiary London children’s hospital presenting with a history of fever and high CRP, in whom PIMS-TS was considered as a diagnosis, during the COVID-19 pandemic.MethodsClinical records from 1st March 2020 to 30th June 2020 (inclusive) were retrospectively analysed to identify patients under the age of 18 years admitted to a tertiary London children’s hospital with a history of fever and CRP >60. Electronic notes were reviewed to determine final diagnosis.Results140 patients were admitted with a history of fever and CRP >60 during the study period. 58% (n=81) had PIMS-TS and 42% (n=59) had alternative diagnoses. Of those with an alternative diagnosis 81% (n=48) had infective diagnoses and of these 46% (n=22) had upper or lower respiratory tract infections; 25% (n=12) had sepsis; 13% (n=6) had urinary tract infections or pyelonephritis; 10% (n=5) had gastroenteritis; 4% (n=2) had lymphadenitis and 2% (n=1) had meningitis. 10% (n=5) had surgical diagnoses most commonly appendicitis (n=3). 5% (n=3) had inflammatory diagnoses; 2 with an exacerbation of Crohn’s disease and 1 with vasculitis. 3% (n=2) had autoimmune diagnoses, 1 with juvenile idiopathic arthritis and 1 with Still’s disease who developed macrophage activation syndrome. 2% (n=1) had Burkitt leukaemia.ConclusionsIn the midst of a pandemic there is a high suspicion of PIMS-TS in unwell febrile children. The high numbers of patients with PIMS-TS admitted to this hospital reflects the regional referrals pathway for the PIMS-TS patients during the first wave of COVID-19. However infections remain a major cause of children presenting with fever and a high CRP. The range of alternative diagnoses outlined in our cohort is not surprising, when one considers that PIMS-TS is a disease with a subjective and broad case definition, with signs and symptoms overlapping with other serious diagnoses – infectious, surgical, inflammatory, autoimmune and malignant.The wider differential diagnoses should always be considered when children present with fever and a thorough history and examination is paramount. Alternative diagnoses may have indolent or more chronic symptoms. Our experience has shown that discussion within a multidisciplinary team has helped to ensure alternate diagnoses are not missed.ReferenceHealth Service Journal. National alert as ‘coronavirus-related condition may be emerging in children. April 2020. Available from: https://www.hsj.co.uk/acute-care/exclusive-national-alert-as-coronavirus-related-condition-may-be-emerging-in-children/7027496.article (Last accessed 5th March 2021).
Objective. Small-for-gestational age (SGA) neonates born prematurely may be at higher risk for adverse effects during the early postnatal period than premature neonates born appropriate for ...gestational age (AGA).This study aims to study comparatively morbidity and mortality in SGA and AGA neonates born with low gestational age (GA).
Methods. The study population included all preterm infants born alive with GA 24-31 weeks in Northwestern Greece during a 9-year period and hospitalized in the regional neonatal intensive care unit (NICU). The association of SGA status with neonatal death, and with chronic lung disease (CLD), intraventricular haemorrhage (IVH), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), respiratory distress syndrome (RDS), patent ductus arteriosus (PDA), and sepsis was assessed, using multiple logistic regression analysis.
Results. Of 210 infants without congenital anomalies born at GA 24-31 weeks, 51 were SGA and 159 were AGA. CLD was more common in SGA than in AGA neonates (57.1% vs 29.3%, p < 0.05), but no differences were found in the rates of IVH, NEC, ROP, RDS, and sepsis. The mortality rate in the SGA group was 33.3% vs 17% in the AGA group (p < 0.01), and in the subgroups 28-31 weeks 24.1% vs 6.3%, respectively, (p < 0.01). In logistic regression analysis, SGA status was strongly associated with increased mortality and CLD, independent of confounding factors odd ratios and confidence intervals: 3.4 (CI: 1.8-10.6) p = 0.03 and 3.9 (CI: 1.7-11.5) p < 0.01, respectively.
Conclusions. SGA neonates with GA 24-31 weeks were at increased risk of development of CLD and of neonatal death compared with AGA neonates of the same GA.
ObjectivesPatients from ethnic minority groups and key workers are over-represented among adults hospitalised or dying from COVID-19. In this population-based retrospective cohort, we describe the ...association of ethnicity, socioeconomic and family key worker status with incidence and severity of Paediatric Inflammatory Multisystem Syndrome Temporally associated with SARS-CoV-2 (PIMS-TS).SettingEvelina London Children’s Hospital (ELCH), the tertiary paediatric hospital for the South Thames Retrieval Service (STRS) region.Participants70 children with PIMS-TS admitted 14 February 2020–2 June 2020.Outcome measuresIncidence and crude ORs are presented, comparing ethnicity and socioeconomic status of our cohort and the catchment population, using census data and Index of Multiple Deprivation (IMD). Regression is used to estimate the association of ethnicity and IMD with admission duration and requirement for intensive care, inotropes and ventilation.ResultsIncidence was significantly higher in children from black (25.0 cases per 100 000 population), Asian (6.4/100 000) and other (17.8/100 000) ethnic groups, compared with 1.6/100 000 in white ethnic groups (ORs 15.7, 4.0 and 11.2, respectively). Incidence was higher in the three most deprived quintiles compared with the least deprived quintile (eg, 8.1/100 000 in quintile 1 vs 1.6/100 000 in quintile 5, OR 5.2). Proportions of families with key workers (50%) exceeded catchment proportions. Admission length of stay was 38% longer in children from black ethnic groups than white (95% CI 4% to 82%; median 8 days vs 6 days). 9/10 children requiring ventilation were from black ethnic groups.ConclusionsChildren in ethnic minority groups, living in more deprived areas and in key worker families are over-represented. Children in black ethnic groups had longer admissions; ethnicity may be associated with ventilation requirement.This project was registered with the ELCH audit and service evaluation team, ref. no 11186.
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