Multisystem inflammatory syndrome in adults in a young male following severe acute respiratory syndrome coronavirus-2 infection: a case report.

BACKGROUND: Multisystem inflammatory syndrome in adults (MIS-A) is a rare but potentially life-threatening condition that may occur during or in the weeks following severe acute respiratory syndrome coronavirus-2 infection. To date, only case reports and small case series have described typical findings and management of patients with MIS-A. The prevalence of MIS-A is largely unknown due to the lack of data. CASE SUMMARY: A 30-year-old male patient presented to the emergency department with new-onset of fever, chest discomfort, macular exanthema, abdominal pain, mild dyspnoea, and coughing. The patient reported a mildly symptomatic recent coronavirus disease-19 (COVID-19). Significantly increased markers of inflammation and a modest increase of cardiac troponin were found upon laboratory work-up at admission. Despite broad-spectrum antibiotics, the patient's clinical status deteriorated continuously. Cardiac work-up, including echocardiography, coronary angiography, and cardiac magnetic resonance imaging, was done and signs of acute myocarditis with mildly reduced left ventricular systolic function were found. The complex multi-organ symptom constellation facilitated the diagnosis of MIS-A following COVID-19 infection. Besides aspirin, intravenous, continuous hydrocortisone treatment was initiated, resulting in a prompt improvement of symptoms and clinical findings. DISCUSSION: We report a case of successfully treated MIS-A in the context of COVID-19, which further adds to the existing literature on this rare but clinically significant condition. Our case highlights the necessity of an interdisciplinary approach to correctly diagnose this complex, multi-organ disease and enable fast and appropriate management of these high-risk patients.

Multisystem inflammatory syndrome in adults in a young male following severe acute respiratory syndrome coronavirus-2 infection: a case report

Background Multisystem inflammatory syndrome in adults (MIS-A) is a rare but potentially life-threatening condition that may occur during or in the weeks following severe acute respiratory syndrome coronavirus-2 infection. To date, only case reports and small case series have described typical findings and management of patients with MIS-A. The prevalence of MIS-A is largely unknown due to the lack of data. Case summary A 30-year-old male patient presented to the emergency department with new-onset of fever, chest discomfort, macular exanthema, abdominal pain, mild dyspnoea, and coughing. The patient reported a mildly symptomatic recent coronavirus disease-19 (COVID-19). Significantly increased markers of inflammation and a modest increase of cardiac troponin were found upon laboratory work-up at admission. Despite broad-spectrum antibiotics, the patient’s clinical status deteriorated continuously. Cardiac work-up, including echocardiography, coronary angiography, and cardiac magnetic resonance imaging, was done and signs of acute myocarditis with mildly reduced left ventricular systolic function were found. The complex multi-organ symptom constellation facilitated the diagnosis of MIS-A following COVID-19 infection. Besides aspirin, intravenous, continuous hydrocortisone treatment was initiated, resulting in a prompt improvement of symptoms and clinical findings. Discussion We report a case of successfully treated MIS-A in the context of COVID-19, which further adds to the existing literature on this rare but clinically significant condition. Our case highlights the necessity of an interdisciplinary approach to correctly diagnose this complex, multi-organ disease and enable fast and appropriate management of these high-risk patients.

Improvement of outcome prediction of hospitalized patients with COVID-19 by a dual marker strategy using high-sensitive cardiac troponin I and copeptin.

BACKGROUND: COVID-19 has been associated with a high prevalence of myocardial injury and increased cardiovascular morbidity. Copeptin, a marker of vasopressin release, has been previously established as a risk marker in both infectious and cardiovascular disease. METHODS: This prospective, observational study of patients with laboratory-confirmed COVID-19 infection was conducted from June 6th to November 26th, 2020 in a tertiary care hospital. Copeptin and high-sensitive cardiac troponin I (hs-cTnI) levels on admission were collected and tested for their association with the primary composite endpoint of ICU admission or 28-day mortality. RESULTS: A total of 213 eligible patients with COVID-19 were included of whom 55 (25.8%) reached the primary endpoint. Median levels of copeptin and hs-cTnI at admission were significantly higher in patients with an adverse outcome (Copeptin 29.6 pmol/L, [IQR, 16.2-77.8] vs 17.2 pmol/L [IQR, 7.4-41.0] and hs-cTnI 22.8 ng/L [IQR, 11.5-97.5] vs 10.2 ng/L [5.5-23.1], P < 0.001 respectively). ROC analysis demonstrated an optimal cut-off of 19.3 pmol/L for copeptin and 16.8 ng/L for hs-cTnI and an increase of either biomarker was significantly associated with the primary endpoint. The combination of raised hs-cTnI and copeptin yielded a superior prognostic value to individual measurement of biomarkers and was a strong prognostic marker upon multivariable logistic regression analysis (OR 4.274 [95% CI, 1.995-9.154], P < 0.001). Addition of copeptin and hs-cTnI to established risk models improved C-statistics and net reclassification indices. CONCLUSION: The combination of raised copeptin and hs-cTnI upon admission is an independent predictor of ICU admission or 28-day mortality in hospitalized patients with COVID-19.

Mid-regional pro-atrial natriuretic peptide independently predicts short-term mortality in COVID-19.

BACKGROUND: Mid-regional pro-atrial natriuretic peptide (MR-proANP) is a strong prognostic marker in several inflammatory, respiratory and cardiovascular conditions, but has not been studied in COVID-19 yet. METHODS: This prospective, observational study of patients with COVID-19 infection was conducted from 6 June to 26 November 2020 in different wards of a tertiary hospital. MR-proANP, N-terminal pro-brain natriuretic peptide (NT-proBNP) and high-sensitive cardiac troponin I levels on admission were collected and tested for their association with disease severity and 28-day mortality. RESULTS: A total of 213 eligible patients with COVID-19 were included in the final analyses of whom 13.2% (n = 28) died within 28 days. Median levels of MR-proANP at admission were significantly higher in nonsurvivors (307 pmol/L IQR, [161 - 532] vs 75 pmol/L [IQR, 43 - 153], P < .001) compared to survivors and increased with disease severity and level of hypoxaemia. The area under the ROC curve for MR-proANP predicting 28-day mortality was 0.832 (95% CI 0.753 - 0.912, P < .001). An optimal cut-off point of 160 pmol/L yielded a sensitivity of 82.1% and a specificity of 76.2%. MR-proANP was a significant predictor of 28-day mortality independent of clinical confounders, comorbidities and established prognostic markers of COVID-19 (HR 2.77, 95% CI 1.21 - 6.37; P = .016), while NT-proBNP failed to independently predict 28-day mortality and had a numerically lower AUC compared to MR-proANP. CONCLUSION: Higher levels of MR-proANP at admission are associated with disease severity of COVID-19 and act as a powerful and independent prognostic marker of 28-day mortality.