Baseline plasma SARS-CoV-2 RNA detection predicts an adverse COVID-19 evolution in moderate to severe hospitalized patients.

BACKGROUND: SARS-CoV-2 is a single-stranded RNA virus, known to be the causative agent of COVID-19. As the resulting disease shows a very heterogeneous range of clinical manifestations, the identification of early biomarkers allowing patients stratification according to the expected disease severity is still an unmet clinical need. METHODS: In this observational prospective cohort study, 137 consecutive patients, testing positive for SARS-CoV-2 infection by nasopharyngeal swab RT-PCR or antigenic test, were enrolled to evaluate their plasma viral load at the time of hospitalization. RESULTS: Even if all of them had a molecular diagnosis of COVID-19, only 29 patients showed a detectable plasma SARS-CoV-2 RNAemia. Such viremic patients also showed other clinical and laboratory finding alterations (increased troponin I, IL-6, RDW-CV, and creatinine levels along with decreased platelet count and glomerular filtration rate). A plasma detectable RNA viral load predicted in hospital death or ICU admission with an odds ratio of 3.53 (CI: 1.44-8.64, P=0.0058), while the lack of a detectable viral load was associated with a faster recovery, with an odds ratio of 4.06 (CI: 1.72-9.59, P=0.0014). These findings were confirmed in multivariate models including age, sex and baseline National Early Warning Score 2 and arterial oxygen tension over inspired oxygen fraction ratio. CONCLUSIONS: Our data thus suggest that plasma viral RNA load at the time of hospital admission could represent a useful independent biomarker allowing early patients' stratification according to the expected disease evolution, and driving clinical decisions tailored on the specific needs of the individual patient.

Aging and comorbidities influence the risk of hospitalization and mortality in diabetic patients experiencing severe hypoglycemia.

BACKGROUND AND AIMS: To assess the risk of hospitalization and mortality within 1 year of severe hypoglycaemia and theirs clinical predictors. METHODS AND RESULTS: We retrospectively examined 399 admissions for severe hypoglycemia in adults with DM at the Emergency Department (ED) of the University Hospital of Novara (Italy) between 2012-2017, and we compared the clinical differences between older (aged ≥65 years) and younger individuals (aged 18-64 years). A logistic regression model was used to explore predictors of hospitalization following ED access and 1-year later, according to cardiovascular (CV) or not (no-CV) reasons; 1-year all-cause mortality was also detected. The study cohort comprised 302 patients (median [IQR] age 75 [17] years, 50.3% females, 93.4% white, HbA1c level 7.6% [1.0%]). Hospitalization following ED access occurred in 16.2% of patients and kidney failure (OR 0.50 [95% CI 1.29-5.03]) was the only predictor of no-CV specific hospitalization; 1-year hospitalization occurred in 24.5% of patients and obesity (OR 3.17 [95% CI 1.20-8.12]) and pre-existing heart disease (OR 3.20 [95% 1.20-9.39]) were associated with CV specific hospitalization; 1-year all-cause mortality occurred in 14.9% of patients and was associated with older age (OR 1.12 [95% CI 1.07-1.18]) and pre-existing heart disease (OR 2.63 [95% CI 1.19-6.14]) CONCLUSIONS: Severe hypoglycemia is associated with risk of hospitalization and mortality mainly in elderly patients and it may be predictive of future cardiovascular events in diabetic patients with pre-existing heart disease and obesity.

Pattern of Emergency Department referral during the COVID-19 outbreak in Italy.

BACKGROUND: The Coronavirus disease (COVID-19) outbreak is putting the European National Health Systems under pressure. Interestingly, Emergency Department (ED) referrals for other reasons than COVID-19 seem to have declined steeply. In the present paper, we aimed to verify how the COVID-19 outbreak changed ED referral pattern. METHODS: We retrospectively reviewed the clinical records of patients referred to the ED of a University Hospital in Northern Italy from 1 March to 13 April 2020. We compared the following data with those belonging to the same period in 2019: number of EDs accesses, rate of hospital admission, frequencies of the most common causes of ED referral, priority codes of access. RESULTS: The number of ED referrals during the COVID-19 outbreak was markedly reduced when compared to the same period in 2019 (3059 vs. 5691; -46.3%). Conversely, the rate of hospital admission raised from 16.9% to 35.4% (P<0.0001), with a shift toward higher priority codes of ED admission. In 2020, we observed both a reduction of the number of patients referred for both traumatic (513, 16.8% vs. 1544, 27.1%; χ2=118.7, P<0.0001) and non-traumatic (4147 vs. 2546) conditions. Among the latter, suspected COVID-19 accounted for 1101 (43.2%) accesses. CONCLUSIONS: The COVID-19 pandemic completely changed the pattern of ED referral in Italy, with a marked reduction of the accesses to the hospitals. This could be related to a limited exposure to traumas and to a common fear of being infected during EDs in-stay. This may limit the misuse of EDs for non-urgent conditions but may also delay proper referrals for urgent conditions.

Clinical stability and in-hospital mortality prediction in COVID-19 patients presenting to the Emergency Department.

BACKGROUND: The Novara-COVID score was developed to help the emergency physician to decide which Coronavirus disease (COVID) patient required hospitalization at Emergency Department (ED) presentation and to which intensity of care. We aimed at evaluating its prognostic role. METHODS: We retrospectively collected data of COVID patients admitted to our ED between March 16 and April 22, 2020. The Novara-COVID score was systematically applied to all COVID patients since its introduction in clinical practice and adopted to decide patients' destination. The ability of the Novara-COVID score to predict in-hospital clinical stability and in-hospital mortality were evaluated through multivariable logistic regression and cox regression hazard models, respectively. RESULTS: Among the 480 COVID patients admitted to the ED, 338 were hospitalized: the Novara-COVID score was 0-1 in 49.7%, 2 in 24.6%, 3 in 15.4% and 4-5 in 10.3% of patients. Novara-COVID score values of 3 and 4-5 were associated with lower clinical stability with adjusted odds ratios of 0.28 (0.13-0.59) and 0.03 (0.01-0.12), respectively. When in-hospital mortality was evaluated, a significant difference emerged between scores of 0-1 and 2 vs. 3 and 4-5. In particular, the death adjusted hazard ratio for Novara-COVID scores of 3 and 4-5 were 2.6 (1.4-4.8) and 8.4 (4.7-15.2), respectively. CONCLUSIONS: The Novara-COVID score reliably predicts in-hospital clinical instability and mortality of COVID patients at ED presentation. This tool allows the emergency physician to detect patients at higher risk of clinical deterioration, suggesting a more aggressive therapeutic management from the beginning.

Early or delayed bronchoscopy in patients admitted to the emergency department for mild-to-moderate hemoptysis?

BACKGROUND: The correct timing for bronchoscopy in massive hemoptysis is well established, whereas in mild-to-moderate hemoptysis there still is uncertainty. The aim of our study was to evaluate if performing a fibrobronchoscopy (FBS) within 48 hours after the onset of mild-to-moderate hemoptysis was related to a higher possibility to identify the site and the cause of bleeding, compared to a delayed one. METHODS: We conducted a retrospective study over one-year period from March 2015, in which consecutive patients admitted to the emergency department underwent FBS for spontaneous mild-to-moderate hemoptysis in our medium-size teaching hospital. RESULTS: We included 69 patients. Definitive diagnosis was achieved in 52 cases (75%) combining clinical, imaging and endoscopic data (neoplastic diseases 22%, infections 20%, alveolar hemorrhage 13%). FBS was performed within 48 hours of symptoms onset in 41 patients (59%). The site of bleeding was identified in 28 cases (41%), 64% of which underwent FBS within 48 hours. Endoscopic diagnosis was reached in 45 patients (65%), 60% of which underwent FBS within 48 hours. No statistical association with localization (P=0.62) or diagnosis (P=1.00) was found with early FBS. Despite a high prevalence in our cohort of patients treated with anticoagulant or antiplatelet drugs (39%), we found no statistical association with bronchoscopy localization (P=0.12) and diagnosis (P=0.21). CONCLUSIONS: In conclusion, in case of mild to moderate hemoptysis, an early bronchoscopy in the emergency department setting does not seem to improve the possibility to find neither the cause nor the localization of the bleeding source.

The increase in copeptin levels in mild head trauma does not predict the severity and the outcome of brain damage.

AIM: To investigate the copeptin prognostic role in mild head trauma. METHODS: We enrolled 105 adult patients who entered the emergency room because of recent mild head trauma; we evaluated: clinical picture, imaging and laboratory data (including copeptin). RESULTS: Copeptin resulted higher in mild head trauma patients compared with controls: 29.89 pmol/l versus 7.05 pmol/l (p = 0.0008). Copeptin failed in identifying patients with or without brain lesions detected by CT scan, and patients with or without adverse events during the 30 days follow-up. CONCLUSION: We confirmed that mild head trauma patients have a significantly higher copeptin plasma levels compared with controls. Nevertheless, we did not observe a significant role for copeptin in traumatic brain injury patients regarding brain damage and outcome.