scholarly journals Greater Covid-19 Severity and Mortality in Hospitalized Patients in Second (Delta Variant) Wave Compared to the First: Single Centre Prospective Study in India

Author(s):  
Raghubir S Khedar ◽  
Kartik Mittal ◽  
Harshad C Ambaliya ◽  
Alok Mathur ◽  
Jugal B Gupta ◽  
...  

ABSTRACTBackground & ObjectiveCovid-19 pandemic has led to multiple waves secondary to mutations in SARS-CoV-2 and emergence of variants of concern (VOC). Clinical characteristics of delta (B.1.617.2) VOC are not well reported. To compare demographic, clinical and laboratory features and outcomes in the second Covid-19 wave in India (delta VOC) with the previous wave we performed a registry-based study.MethodsSuccessive SARS-CoV-2 reverse transcriptase-polymerase chain reaction (RT-PCR) confirmed Covid-19 patients presenting to our Advanced Covid Care hospital were prospectively recruited. In the first phase (wave) from March-December 2020, 1395 of 7476 (18.7%) suspected patients tested positive and 863 (61.89%) hospitalized, while in second wave from January-July 2021 out of 1641 confirmed cases out of 8680 (19.4%) suspected 388 (23.6%) were hospitalized. Details of clinical and laboratory features at admission to hospital, management and outcomes in the two waves have been compared.ResultsIn both cohorts, majority were men and 20% less than 40 years. Prevalence of hypertension, diabetes and cardiovascular diseases was more than 20%. Second wave patients had similar pre-hospitalization symptom duration but had significantly greater cough, fever and shortness of breath and lower SpO2 at presentation with greater lymphopenia, C-reactive proteins, interleukin-6, ferritin, lactic dehydrogenase and transaminases. In the second vs first wave patients, requirement of supplementary oxygen (47.9% vs 34.3%), prone positioning (89.2 vs 38.6%), high flow nasal oxygen(15.7 vs 9.1%), non-invasive ventilation (14.4 vs 9.5%), invasive ventilation (16.2 vs 9.5%), steroids (94.1 vs 85.9%), remdesivir (91.2 vs 76.0%) and anticoagulants (94.3 vs 76.0%) was greater (p<0.001). Median (IQR) length of stay [8 (6-10) vs 7 (5-10) days] as well as ICU stay [9 (5-13) vs 6 (2-10) days] was more in second wave (p<0.001). In-hospital deaths occurred in 173 patients (13.9%) and were significantly more in the second wave, 75 (19.3%), compared to the first, 98 (11.5%); unadjusted odds ratio (95% CI) 1.84 (1.32-2.55) which did not change significantly with adjustment for age and sex (2.03, 1.44-2.86), and age, sex and comorbidities (2.09, 1.47-2.95). Greater disease severity at presentation was associated with mortality in both the waves.ConclusionsCovid-19 patients hospitalized during the second wave of the epidemic (delta variant) had more severe disease with greater dyspnea, hypoxia, hematological and biochemical abnormalities compared to first wave patients. They had greater length of stay in intensive care unit, oxygen requirement, non-invasive and invasive ventilatory support. The in-hospital mortality in the second wave was double of the first.

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Robert O’Connor ◽  
Ross Megargel ◽  
Angela DiSabatino ◽  
William Weintrub ◽  
Charles Reese

Introduction : The purpose of this study is to determine the degree of gender differences in lay person recognition, emergency medical services (EMS) activation, and the prehospital management of STEMI. Methods : Data were gathered prospectively from May 1999 to January 2007 on consecutive patients with STEMI who presented to a tertiary care hospital emergency department. Patients arriving by ambulance and private vehicle were included. Data collection included determining symptom duration, whether a prehospital ECG was obtained, whether the cardiac interventional lab was activated prior to patient arrival at the hospital, patient age, and hospital length of stay. Prehospital activation of the cath lab was done by emergency medicine based on paramedic ECG interpretation in consultation with cardiology. Statistical analysis was performed using the Mann-Whitney U test, the Yates-corrected chi-square test, and linear regression. Results : A total of 3260 cases were studied, of which, 3097 had complete data for analysis. Only EMS cases were included in the ECG analysis, and only patients having a prehospital ECG were included in the prehospital activation of cath lab analysis. Regression analysis showed that older age and female gender were significant predictors of access and arrival by EMS. The mean age in years was higher for EMS arrival (69 women; 59 men) than for private vehicle (62 women; 56 men). Conclusion : Women with STEMI tend to use EMS more frequently then men, but are older and wait longer before seeking treatment. Whether these factors contribute to the longer length of stay remains to be determined.


2021 ◽  
Vol 03 ◽  
Author(s):  
Mazen Zouwayhed ◽  
Saria Gouher ◽  
Balu Bhaskar ◽  
Moeena Zain ◽  
Samer Burghleh ◽  
...  

Background: The use of non-invasive ventilation (NIV) as a therapy for acute respiratory distress syndrome (ARDS) secondary to COVID 19 pneumonia has been controversial. NIV is an aerosol generating procedure which may increase the risk of viral transmission amongst patients and staff. Because of fear of aerosolizing the virus and transmitting the disease, initial expert recommendation was to avoid NIV and proceed with early intubation. With further experience of the virus, this recommendation has been challenged and NIV has been used widely with some retrospective studies quoting between 11 to 56 percent of COVID 19 related respiratory failures being treated with NIV. Objective: The objective of this study is to assess the efficacy and safety of using non-invasive mechanical ventilation as an alveolar recruitment method for patients with severe COVID 19 pneumonia. This method was used by our respiratory team on selected patients during the early phase of the COVID 19 pandemic. Methods: We reviewed the charts of patients that were admitted to the American Hospital Dubai intensive care unit, or our medical step-down unit who had diffuse bilateral infiltrates requiring oxygen supplementation between March and October 2020. We identified patients who were on intermittent BiPAP in addition to standard care. We also monitored the rate of infection among staff taking care of these patients. Results: Average length of stay after starting BIPAP therapy was 6.8 days, while the average total length of stay was 13.6 days. Only one patient was transferred to the ICU after being on the BIPAP protocol and did not need intubation. All patients were discharged home either without oxygen or with their chronic baseline home oxygen requirement. Radiological improvement in aeration was seen in 100% of patients at follow-up x-ray post-intervention. There were no reported pulmonary complications from barotrauma, such as pneumothorax or pneumomediastinum. There were no reported cases of staff infection to the health care workers that were taking care of these patients Conclusion: Our first of its kind observational study showed clearly that using BIPAP therapy for one hour three times daily during nebulization therapy in addition to standard care resulted in a significant reduction in hospital length of stay and hastened the clinical and radiological improvement of patients with severe COVID 19 pneumonia.


2021 ◽  
Vol 36 (2) ◽  
pp. e236-e236
Author(s):  
Adil Al Lawati ◽  
Faryal Khamis ◽  
Samiha Al Habsi ◽  
Khazina Al Dalhami

Objectives: Healthcare workers (HCWs), especially those working on the front line, are considered to be at high risk of nosocomial acquisition of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). Little is known about the effectiveness of the recommended protective methods as few reports have described spread of the disease in hospital settings among this high-risk population. We describe the hospital-based transmission of SARS-CoV-2 related to non-invasive ventilation (NIV) in one of the main tertiary care hospitals in Oman. Methods: All exposed patients and HCWs from Royal Hospital were screened, quarantined, and underwent telephone interviews to stratify their risk factors, clinical symptoms, and exposure risk assessment. Results: A total of 46 HCWs and patients tested positive for SARS-CoV-2 after exposure to an index case who received 48 hours of NIV before diagnosing COVID-19 infection. Over half of the exposed (56.5%; n = 26) were nurses, 26.1% (n = 12) were patients, and 15.2% (n = 7) were doctors. None of the HCWs required hospitalization. Sore throat, fever, and myalgia were the most common symptoms. Conclusions: NIV poses a significant risk for SARS-CoV-2 transmission within hospital settings if appropriate infection control measures are not taken.


2017 ◽  
Vol 11 (1) ◽  
pp. 57
Author(s):  
Enrico Cinque ◽  
Ines Maria Grazia Piroddi ◽  
Cornelius Barlascini ◽  
Alessandro Perazzo ◽  
Antonello Nicolini

Polymicrobial pneumonia may be caused by the combination of respiratory viruses, bacteria and fungi in a host. Colonization by <em>Streptococcus pneumoniae</em> was associated with increased risk of Intensive Care Unit admission or death in the setting of influenza infection, whereas the colonization by methicillin sensible <em>Staphylococcus aureus</em> co-infection was associated with severe disease and death in adults and children. The principal association of pathogens in community-acquired pneumonia (CAP) is bacteria and viral co-infection, and accounts approximately for 39% of microbiological diagnosed cases of CAP. The differential clinical diagnosis between a viral and a bacterial CAP is not easy: no clinical signs or radiological findings help the clinician to suspect to the diagnosis. Patients with polymicrobial infections are more likely to have underlying medical conditions and have more severe outcome. Severe respiratory failure and need of mechanical ventilation occur in several cases. Non invasive ventilation (NIV) use aims to avoid invasive mechanical ventilation. NIV treatment is controversial owing to high reported treatment failure. In this case series we report three cases of severe polymicrobial CAP: all of them required NIV with a good outcome.


CJEM ◽  
2020 ◽  
Vol 22 (S1) ◽  
pp. S5-S5
Author(s):  
I. Stiell ◽  
J. Perry ◽  
C. Clement ◽  
S. Sibley ◽  
A. McRae ◽  
...  

Introduction: Acute heart failure (AHF) is a common emergency department (ED) presentation and may be associated with poor outcomes. Conversely, many patients rapidly improve with ED treatment and may not need hospital admission. Because there is little evidence to guide disposition decisions by ED and admitting physicians, we sought to create a risk score for predicting short-term serious outcomes (SSO) in patients with AHF. Methods: We conducted prospective cohort studies at 9 tertiary care hospital EDs from 2007 to 2019, and enrolled adult patients who required treatment for AHF. Each patient was assessed for standardized real-time clinical and laboratory variables, as well as for SSO (defined as death within 30 days or intubation, non-invasive ventilation (NIV), myocardial infarction, coronary bypass surgery, or new hemodialysis after admission). The fully pre-specified, logistic regression model with 13 predictors (age, pCO2, and SaO2 were modeled using spline functions with 3 knots and heart rate and creatinine with 5 knots) was fitted to the 10 multiple imputation datasets. Harrell's fast stepdown procedure reduced the number of variables. We calculated the potential impact on sensitivity (95% CI) for SSO and hospital admissions and estimated a sample size of 170 SSOs. Results: The 2,246 patients had mean age 77.4 years, male sex 54.5%, EMS arrival 41.1%, IV NTG 3.1%, ED NIV 5.2%, admission on initial visit 48.6%. Overall there were 174 (7.8%) SSOs including 70 deaths (3.1%). The final risk scale is comprised of five variables (points) and had c-statistic of 0.76 (95% CI: 0.73-0.80): 1.Valvular heart disease (1) 2.ED non-invasive ventilation (2) 3.Creatinine 150-300 (1) ≥300 (2) 4.Troponin 2x-4x URL (1) ≥5x URL (2) 5.Walk test failed (2) The probability of SSO ranged from 2.0% for a total score of 0 to 90.2% for a score of 10, showing good calibration. The model was stable over 1,000 bootstrap samples. Choosing a risk model total point admission threshold of >2 would yield a sensitivity of 80.5% (95% CI 73.9-86.1) for SSO with no change in admissions from current practice (48.6% vs 48.7%). Conclusion: Using a large prospectively collected dataset, we created a concise and sensitive risk scale to assist with admission decisions for patients with AHF in the ED. Implementation of this risk scoring scale should lead to safer and more efficient disposition decisions, with more high-risk patients being admitted and more low-risk patients being discharged.


2019 ◽  
Vol 11 (9) ◽  
pp. 376-380
Author(s):  
Samuel McCreesh

Chronic obstructive pulmonary disease (COPD) is the second most common respiratory illness in the UK, affecting over 1 million people. Acute exacerbations of COPD are a common presentation to the ambulance service and account for thousands of hospital admissions annually. Acute respiratory failure accompanies approximately 20% of exacerbations. Current prehospital treatment focuses on oxygen and pharmacological therapy to treat the underlying causes. Non-invasive ventilation (NIV) is a method of ventilatory support that does not require endotracheal intubation, avoiding significant risks associated with intubation and sedation. While some UK ambulance services have introduced NIV, UK guidelines primarily focus on hospital use. International trials have shown prehospital NIV to be more effective than standard treatment in terms of reducing the need for intubation and invasive ventilation in hospital. However, further research is necessary before NIV is introduced widely in UK prehospital paramedic practice.


2008 ◽  
Vol 34 (9) ◽  
Author(s):  
Etienne Javouhey ◽  
Audrey Barats ◽  
Nathalie Richard ◽  
Didier Stamm ◽  
Daniel Floret

Life ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1154
Author(s):  
Silvia Fattori ◽  
Elisa Reitano ◽  
Osvaldo Chiara ◽  
Stefania Cimbanassi

This study aims to define possible predictors of the need of invasive and non-invasive ventilatory support, in addition to predictors of mortality in patients with severe thoracic trauma. Data from 832 patients admitted to our trauma center were collected from 2010 to 2017 and retrospectively analyzed. Demographic data, type of respiratory assistance, chest injuries, trauma scores and outcome were considered. Univariate analysis was performed, and binary logistic regression was applied to significant data. The injury severity score (ISS) and the revised trauma score (RTS) were both found to be predictive factors for invasive ventilation. Multivariate analysis of the anatomical injuries revealed that the association of high-severity thoracic injuries with trauma in other districts is an indicator of the need for orotracheal intubation. From the analysis of physiological parameters, values of systolic blood pressure, lactate, and Glasgow coma scale (GCS) score indicate the need for invasive ventilatory support. Predictive factors for non-invasive ventilation include: RTS, ISS, number of rib fractures and presence of hemothorax. Risk factors for death were: age over 65, the presence of bilateral rib fractures, pulmonary contusion, hemothorax and associated head trauma. In conclusion, the need for invasive ventilatory support in thoracic trauma is associated to the patient’s systemic severity. Non-invasive ventilation is a supportive treatment indicated in physiologically stable patients regardless of the severity of thoracic injury.


2020 ◽  
Author(s):  
Manuel F. Ugarte-Gil ◽  
Claudia D. L. Marques ◽  
Deshire Alpizar-Rodriguez ◽  
Guillermo J. Pons-Estel ◽  
Daniel Xibille-Friedmann ◽  
...  

Objective: To compare the characteristics of patients with rheumatic diseases and COVID-19 reported from Latin American countries with those from the rest of the world. Methods: Patients from the COVID-19 Global Rheumatology Alliance Physician-Reported Registry were included. Details regarding demographics, rheumatic disease features, comorbidities, COVID-19 diagnosis and treatment, and outcomes were examined. Chi-squared and t-tests were used to compare associations between groups (Latin America vs. rest of the world). Multivariable logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) of hospitalization (yes/no) and ventilatory support (not hospitalized or supplementary oxygen only vs. non-invasive, invasive ventilation, or ECMO); Poisson models were used to estimate ORs and 95% CIs of mortality. Results: Seventy-four patients from Latin America and 583 patients from the rest of the world were included. The most frequent rheumatic diseases in both groups were rheumatoid arthritis (35% and 39%, respectively) and systemic lupus erythematosus (22% and 14% respectively). Mortality was similar between groups (12% Latin America vs 11% rest of the world, p=0.88. However, Latin American patients in the registry had a higher odds of requiring non-invasive or invasive ventilation, after adjustment [OR= 2.29, 95%CI (1.29, 4.07), p less than 0.01].. Conclusion: Latin American patients with rheumatic disease and COVID-19 reported to this global registry presented a higher need for ventilatory support, however experienced a similar mortality than patients from the rest of the world.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gianmaria Cammarota ◽  
Rosanna Vaschetto ◽  
Danila Azzolina ◽  
Nello De Vita ◽  
Carlo Olivieri ◽  
...  

AbstractIn patients intubated for hypoxemic acute respiratory failure (ARF) related to novel coronavirus disease (COVID-19), we retrospectively compared two weaning strategies, early extubation with immediate non-invasive ventilation (NIV) versus standard weaning encompassing spontaneous breathing trial (SBT), with respect to IMV duration (primary endpoint), extubation failures and reintubations, rate of tracheostomy, intensive care unit (ICU) length of stay and mortality (additional endpoints). All COVID-19 adult patients, intubated for hypoxemic ARF and subsequently extubated, were enrolled. Patients were included in two groups, early extubation followed by immediate NIV application, and conventionally weaning after passing SBT. 121 patients were enrolled and analyzed, 66 early extubated and 55 conventionally weaned after passing an SBT. IMV duration was 9 [6–11] days in early extubated patients versus 11 [6–15] days in standard weaning group (p = 0.034). Extubation failures [12 (18.2%) vs. 25 (45.5%), p = 0.002] and reintubations [12 (18.2%) vs. 22 (40.0%) p = 0.009] were fewer in early extubation compared to the standard weaning groups, respectively. Rate of tracheostomy, ICU mortality, and ICU length of stay were no different between groups. Compared to standard weaning, early extubation followed by immediate NIV shortened IMV duration and reduced the rate of extubation failure and reintubation.


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