BACKGROUND AND OBJECTIVES The worldwide SARS-CoV-2 virus pandemic challenges adolescents’ mental health. The aim of this study was to compare the number of pediatric intensive care unit (PICU) admissions after suicide attempts during the first German lockdown and one year later during a second, prolonged lockdown with pre-pandemic years. METHODS A retrospective multicenter study was conducted among 27 German PICUs. Cases <18 years admitted to the PICU due to accidents or injuries between March 16th and May 31st of 2017-2021 were identified based on ICD-10 codes (German modification) and patient data entered into a database. This study is a subset analysis on suicide attempts in adolescents aged 12–17.9 years. The Federal Statistics Office was queried for data on fatal suicides, which were available only for 2020 in adolescents aged 10–17.9 years. RESULTS Total admissions and suicide attempts declined during the first lockdown in 2020 (standardized morbidity ratio (SMR) 0.74 (95% CI 0.58–0.92) and 0.69 (0.43–1.04), respectively) and increased in 2021 (2.14 (SMR 1.86–2.45) and 2.84 (2.29–3.49), respectively). Fatal suicide rates remained stable between 2017–2019 and 2020 (1.57 v. 1.48/100,000 adolescent years) with monthly numbers showing no clear trend during the course of 2020. CONCLUSIONS This study shows a strong increase in serious suicide attempts among adolescents during the course of the pandemic in Germany. More research is needed to understand the relation between pandemic prevention measures and suicidal ideation to help implement mental health support for adolescents.

Epstein-Barr virus infection may cause severe neurological complications that are not mirrored by animal models. Here, we show that nasal inoculation of newborn BALB/c wild-type mice with MHV-68, a murine gammaherpesvirus, causes cerebral infection with inflammation in 50% of the animals. The inflammatory patterns are strikingly similar to those known from Epstein-Barr virus, including hydrocephalus, meningitis, cerebellitis, focal or diffuse encephalitis, and temporal lobe encephalitis. This offers a new powerful tool to study the virological and immunological characteristics of cerebral gammaherpesvirus infections.

The connection between Pediatric Inflammatory Multisystem Syndrome (PIMS) and Kawasaki Disease (KD) is not yet fully understood. Using the same national registry, clinical features and outcome of children hospitalized in Germany, and Innsbruck (Austria) were compared. Reported to the registry were 395 PIMS and 69 KD hospitalized patients. Patient age in PIMS cases was higher than in KD cases (median 7 [IQR 4–11] vs. 3 [IQR 1–4] years). A majority of both PIMS and KD patients were male and without comorbidities. PIMS patients more frequently presented with organ dysfunction, with the gastrointestinal (80%), cardiovascular (74%), and respiratory (52%) systems being most commonly affected. By contrast, KD patients more often displayed dermatological (99% vs. 68%) and mucosal changes (94% vs. 64%), plus cervical lymph node swelling (51% vs. 34%). Intensive care admission (48% vs. 19%), pulmonary support (32% vs. 10%), and use of inotropes/vasodilators (28% vs. 3%) were higher among PIMS cases. No patients died. Upon patient discharge, potentially irreversible sequelae—mainly cardiovascular—were reported (7% PIMS vs. 12% KD). Despite differences in age distribution and disease severity, PIMS and KD cases shared many common clinical and prognostic characteristics. This supports the hypothesis that the two entities represent a syndrome continuum.

ObjectiveTo compare the number of accident- and injury-related admissions to pediatric intensive care units (PICU) during the first German COVID-19 lockdown with previous years. To investigate if shifts in types of accidents or injuries occurred, especially regarding non-accidental injuries.DesignRetrospective observational multicenter study.Setting37 German PICUs.Patients1444 children and adolescents < 18 years admitted to German PICUs due to trauma or injuries during the first German lockdown period (16.3.-31.5.2020) and during the same periods of the years 2017-2019.InterventionsNone.Measurements and main resultsStandardized morbidity ratios (SMR) and 95% confidence intervals (CI) were calculated for the severity of disease, admission reasons, types of accidents, injury patterns, surgeries and procedures, and outcomes. Disease severity did not differ from previous years. We found an increase in ingestions (SMR 1.41 (CI 0.88 – 2.16)) and a decrease in aspirations (0.77 (0.41 – 1.32)) and burns (0.82 (0.59 – 1.12)). The total number of admissions for trauma remained constant, but traffic accidents (0.76 (0.56 – 1.01) and school/kindergarten accidents (0.25 (0.05 – 0.74) decreased. Household (1.32 (1.05 – 1.64)) and leisure accidents (1.32 (1.05 – 1.65)) increased. Injured structures did not change, but less neurosurgeries (0.69 (0.42 – 1.07)) and more visceral surgeries (2.00 (1.14 – 3.24)) were performed. Non-accidental non-suicidal injuries declined (0.85 (0.50 – 1.37)). Suicide attempts increased in adolescent boys (1.57 (0.58 – 3.42)), while there was a decrease in adolescent girls (0.86 (0.53 – 1.31)).ConclusionsOur study showed shifts in trauma types and associated surgeries during the lockdown period that are generally in line with current literature. The decreased number of non-accidental non-suicidal injuries we observed does not suggest a fundamental increase in severe child abuse during the lockdown period. The decrease in suicide attempts among adolescent girls confirms previous findings, while the increase among boys has not been described yet and deserves further investigation.

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