Mechanical Ventilation In COVID-19 Patients Research Articles

Increased levels of circulating cell-free DNA in COVID-19 patients with respiratory failure

Cell-free DNA (cfDNA) is released from injured cells and aggravates inflammation. Patients with coronavirus disease (COVID-19) often develop pneumonia and respiratory failure, and require oxygen therapy (OT), including mechanical ventilation (MV). It remains unclear whether cfDNA predicts the risk of receiving OT or MV in COVID-19 patients. Therefore, we hypothesized that circulating cfDNA levels could reflect the severity of respiratory failure and determine a therapeutic approach for oxygenation in patients with COVID-19. We analyzed cfDNA levels in serum samples from 95 hospitalized patients with COVID-19 at Showa University Hospital (Tokyo, Japan). cfDNA levels were assessed by measuring the copy numbers of mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) using quantitative real-time PCR (qPCR). Both cf-nDNA and cf-mtDNA levels were negatively correlated with adjusted SpO2 for FiO2 (SpO2/FiO2 ratio). Elevated cf-nDNA and cf-mtDNA levels were associated with the requirement for OT or MV during patient admission. Multivariate logistic regression analysis revealed that cf-nDNA and cf-mtDNA levels were independent risk factors for OT and MV. These results suggest that both serum cf-nDNA and cf-mtDNA could serve as useful early biomarkers to indicate the necessity of OT or MV in patients with COVID-19.

Addition of Mask to High-flow Nasal Oxygen: A Strategy to Improve Oxygenation in Hypoxemic Respiratory Failure Secondary to COVID-19.

High-flow nasal cannula (HFNO) reduces the need for invasive mechanical ventilation in COVID-19 patients with hypoxemic-respiratory failure. During HFNO entrainment of room air dilutes the delivered fractional inspiratory oxygen (FiO2), thereby preventing improvement in oxygenation. The placement of a mask over HFNO to improve oxygenation has provided conflicting results. We aimed to determine and compare the effect of placing various mask types over HFNO on oxygen saturation (SPO2). In this prospective physiological study 40 patients with COVID-19-associated hypoxemic respiratory failure on HFNO with O2 concentration <92% were included. The effect of placing different masks over HFNO on oxygenation, respiratory rate, heart rate, blood pressure, patient comfort, and partial pressure of carbon dioxide level (pCO2) was recorded after a prespecified time interval. We observed a significantly higher mean SPO2 and lower mean respiratory rate on using various study masks over HFNO compared to HFNO alone. On comparing various mask types, the use of N95 masks and nonrebreather (NRB) masks with O2 showed a significant increase in O2 concentration and reduction in respiratory rate compared to surgical mask (SM) and NRB without O2. The proportion of patients who achieved SPO2 of >92% was higher with the use of N95 masks (47.5%) or NRB with O2 (45%) over HFNO compared to SM (35%) and NRB without O2 (35%). No significant change was observed in heart rate, blood pressure, and CO2 level with the use of any mask over HFNO. This study demonstrates improvement in oxygenation and reduction in respiratory rate with the use of various masks over HFNO in patients of COVID-19-related hypoxemic-respiratory-failure. Significantly greater benefit was achieved with the use of N95 or NRB with O2 compared to SM or NRB without O2.

Legal Protection of Health Workers on the Installation of Mechanical Ventilation of Covid-19 Patients in Hospitals

Corona Virus Disease-2019 (Covid-19) is a disease that causes an epidemic with a high number of deaths and morbidity in Indonesia. Covid-19 sufferers often experience respiratory failure, so they need to receive mechanical ventilation assistance. This research aims to find out the rules for legal protection for health workers in the act of installing mechanical ventilation for Covid-19 patients in hospitals and to find out the implementation of legal protection. This type of research is normative juridical based on a legal approach. Data collection is based on literature study, taken from legislation, research results and literature books. The results of the research found that the provision of health services was carried out responsibly, safely, of good quality and evenly and non-discriminatory. The position faced by medical personnel or health workers is sometimes problematic because installing mechanical ventilators for Covid-19 patients from a criminal law perspective is a mistake if it is done outside of their authority, even though the medical personnel or health workers are dealing with the function and task of carrying out actions. for patient safety which is of course tied to the Hippocratic Oath as an ethical and moral basis. The suggestion in this research is that the government must provide legal protection to medical personnel whose rights are not fulfilled by policy organizers, even though their obligations have been fulfilled by health personnel.

Emergency Department SpO2/FiO2 Ratios Correlate with Mechanical Ventilation and Intensive Care Unit Requirements in COVID-19 Patients.

Patients with coronavirus 2019 (COVID-19) are at high risk for respiratory dysfunction. The pulse oximetry/fraction of inspired oxygen (SpO2/FiO2) ratio is a non-invasive assessment of respiratory dysfunction substituted for the PaO2:FiO2 ratio in Sequential Organ Failure Assessment scoring. We hypothesized that emergency department (ED) SpO2/FiO2 ratios correlate with requirement for mechanical ventilation in COVID-19 patients. Our objective was to identify COVID-19 patients at greatest risk of requiring mechanical ventilation, using SpO2/FiO2 ratios. We performed a retrospective review of patients admitted with COVID-19 at two hospitals. Highest and lowest SpO2/FiO2 ratios (percent saturation/fraction of inspired O2) were calculated on admission. We performed chi-square, univariate, and multiple regression analysis to evaluate the relationship of admission SpO2/FiO2 ratios with requirement for mechanical ventilation and intensive care unit (ICU) care. A total of 539 patients (46% female; 84% White), with a mean age 67.6 ± 18.6years, met inclusion criteria. Patients who required mechanical ventilation during their hospital stay were statistically younger in age (P = 0.001), had a higher body mass index (P < .001), and there was a higher percentage of patients who were obese (P = 0.03) and morbidly obese (P < .001). Shortness of breath, cough, and fever were the most common presenting symptoms with a median temperature of 99°F. Average white blood count was higher in patients who required ventilation (P = <0.001). A highest obtained ED SpO2/FiO2 ratio of ≤300 was associated with a requirement for mechanical ventilation. A lowest obtained ED SpO2/FiO2 ratio of ≤300 was associated with a requirement for intensive care unit care. There was no statistically significant correlation between ED SpO2/FiO2 ratios >300 and mechanical ventilation or intensive care unit (ICU) requirement. The ED SpO2/FiO2 ratios correlated with mechanical ventilation and ICU requirements during hospitalization for COVID-19. These results support ED SpO2/FiO2 as a possible triage tool and predictor of hospital resource requirements for patients admitted with COVID-19. Further investigation is warranted.

Biomarkers and sepsis severity as predictors of mechanical ventilation and mortality in COVID-19

IntroductionPatients with septic shock face an elevated risk of mortality compared to those with sepsis. Several biomarkers, including lactate dehydrogenase, albumin, and lactate/albumin (L/A), have been associated with increased mortality in COVID-19 patients. This study aims to assess the relationship between sepsis, septic shock, and mortality, as well as the need for mechanical ventilation in COVID-19 patients. Demographic, sepsis severity factors, and biomarkers are examined. MethodsA retrospective case series from June 2020 to March 2021 included 490 patients diagnosed with sepsis or septic shock secondary to SARS-CoV-2 pneumonia. Time-to-event analyses were conducted for mechanical ventilation and mortality. Statistical significance was set at p ≤ .0038. Serum lactate, albumin, lactate/albumin ratio, C-reactive protein, platelet levels, and three sepsis severity scales, (CCI, SOFA, APACHE IV) were assessed. ResultsSepsis was identified in 352 patients (71.8%), while 138 had septic shock. Patients with septic shock were more likely to require invasive ventilator support. Factors associated with a higher risk of intubation included higher APACHE IV scores, elevated serum albumin levels, and increased L/A ratio. L/A ratio and serum lactate levels demonstrated the best diagnostic accuracy for mechanical ventilation (AUC, 0.964 and 0.946, respectively), mortality (AUC, 0.926 and 0.887, respectively). DiscussionIncreased C-reactive protein, combined with increased serum lactate and a high lactate/albumin ratio, may assist clinicians in identifying COVID-19 patients at risk of mechanical ventilation and mortality upon admission. Optimal cut-off values for lactate (1.45–1.65 mmol/L) and L/A ratio (0.413) can aid in prioritizing medical care for at risk COVID-19 patients.

Comparison of Invasive and Non-Invasive Mechanical Ventilation in COVID-19 Patients Followed with Respiratory Failure

Comparison of Invasive and Non-Invasive Mechanical Ventilation in COVID-19 Patients Followed with Respiratory Failure

Assessment of the ABC2-SPH risk score to predict invasive mechanical ventilation in COVID-19 patients and comparison to other scores.

Predicting the need for invasive mechanical ventilation (IMV) is important for the allocation of human and technological resources, improvement of surveillance, and use of effective therapeutic measures. This study aimed (i) to assess whether the ABC2-SPH score is able to predict the receipt of IMV in COVID-19 patients; (ii) to compare its performance with other existing scores; (iii) to perform score recalibration, and to assess whether recalibration improved prediction. Retrospective observational cohort, which included adult laboratory-confirmed COVID-19 patients admitted in 32 hospitals, from 14 Brazilian cities. This study was conducted in two stages: (i) for the assessment of the ABC2-SPH score and comparison with other available scores, patients hospitalized from July 31, 2020, to March 31, 2022, were included; (ii) for ABC2-SPH score recalibration and also comparison with other existing scores, patients admitted from January 1, 2021, to March 31, 2022, were enrolled. For both steps, the area under the receiving operator characteristic score (AUROC) was calculated for all scores, while a calibration plot was assessed only for the ABC2-SPH score. Comparisons between ABC2-SPH and the other scores followed the Delong Test recommendations. Logistic recalibration methods were used to improve results and adapt to the studied sample. Overall, 9,350 patients were included in the study, the median age was 58.5 (IQR 47.0-69.0) years old, and 45.4% were women. Of those, 33.5% were admitted to the ICU, 25.2% received IMV, and 17.8% died. The ABC2-SPH score showed a significantly greater discriminatory capacity, than the CURB-65, STSS, and SUM scores, with potentialized results when we consider only patients younger than 80 years old (AUROC 0.714 [95% CI 0.698-0.731]). Thus, after the ABC2-SPH score recalibration, we observed improvements in calibration (slope = 1.135, intercept = 0.242) and overall performance (Brier score = 0.127). The ABC2-SPHr risk score demonstrated a good performance to predict the need for mechanical ventilation in COVID-19 hospitalized patients under 80 years of age.

A Comparative Study between Non-Invasive Continuous Positive Airway Pressure Ventilation and High Flow Nasal Cannula Oxygenation among COVID-19 Patients with Acute Hypoxemic Respiratory Failure

Abstract Background Both non-invasive continuous positive airway pressure ventilation (NIV CPAP) and high flow nasal cannula oxygenation (HFNC) are beneficial in patients with acute hypoxemic respiratory failure. COVID-19 is a pandemic infectious disease caused by the coronavirus with a variable clinical picture. This study compares NIV CPAP and HFNC oxygenation in maintaining adequate ventilation, oxygenation and prevention or delaying endotracheal intubation and invasive mechanical ventilation in COVID-19 patients with acute hypoxemic respiratory failure. Objective To study the effect of NIV CPAP versus HFNC oxygenation among COVID-19 patients with acute hypoxemic respiratory failure in maintaining adequate ventilation, oxygenation and prevention or delaying endotracheal intubation when conventional oxygen therapy (COT) fails to maintain adequate oxygenation. Patients and Methods Our study compares the effect of NIV CPAP versus HFNC oxygenation among COVID-19 patients with acute hypoxemic respiratory failure in maintaining adequate ventilation, oxygenation and prevention or delaying endotracheal intubation when conventional oxygen therapy (COT) fails to maintain adequate oxygenation. Results Results showed a significant improvement in most of patients whether using NIV or HFNC and delaying intubation, with superiority of NIV over HFNC specially as regard oxygenation in terms of PaO2/FiO2. As regard invasive ventilation free days NIV-CPAP use yielded a mean invasive ventilation free days of statistically significant longer duration than HFNC group. While comparison between both groups showed that there was no significant difference as regard ICU stay days or mortality rate. Conclusion We concluded that both NI-CPAP and HFNC therapy are effective measures in respiratory support and management of acute hypoxemic respiratory failure caused by COVID-19. This is proved by improvement in oxygenation and ventilation after treatment with both NI-CPAP and HFNC which is evident by increase in both peripheral oxygen saturation (SpaO2) and PaO2/FiO2 ratio with lower both respiratory rates and PaCO2. This makes them as an excellent alternative to prevent or postpone invasive mechanical ventilation as a standalone therapy and as a bridge for respiratory recovery. This is especially important in limited resources in face of worldwide outbreak.

The Role of Smoking on Incidence and Prognosis of Covid-19 Patients Admitted to Tishreen University Hospital

Background: In February 2020, the World Health Organization identified Covid-19 and identified SARAS-COV2as the cause of the disease. So far, the number of infected people has exceeded 633 million, while the death toll hasexceeded 6.6 million. Since the start of the pandemic, there have been conflicting reports about smoking in termsof incidence and prognosis.Objective: The aim of this study was to investigate the effect of smoking on incidence and prognosis of COVID-19patients.Patients and Methods: An Analytic Observational Cohort study was conducted in patients with a proven diagnosisof COVID-19. They are selected from Pulmonary Medicine department, Tishreen University Hospital in Lattakia-Syria between June 2020 and December 2020. Study population were divided into two groups according to thepatient’s smoking status; group I included smoker (237 cases), and group II included non-smoker (277 cases).Results: The population of 514 patients was predominantly male (66.1%), with a mean age of 61.76±14.9 years.46.1% of the patients were smoker with presence of associated chronic diseases in 341 cases (66.3%). There wereno significant differences between two groups regarding gender and comorbidities (p&gt;0.05). Patients weresignificantly older in group I than in group II (71.22±13.2 versus 60.88±15.2, p:0.001). The rate of oxygen-basedtreatment was higher in smokers compared non-smokers (84.8% versus 67.9%, p:0.03). Non-invasive mechanicalventilation was necessary in 31 patients (13.1%) in group I versus 73 patients (26.4%) in group II, p:0.04. Theduration of hospitalization was longer in non-smoker group (7.2±4.1 versus 5.7±3.9, p:0.001). Recovery rate washigher in non-smoker patients (81.2% versus 68.4%). In addition to, 75 patients (31.6%) in smoker group diedversus 52 patients (18.8%) in non-smoker group, p: 0.005.&#x0D; Conclusion: The current study demonstrated presence of favorable inverse associations of smoking with durationof hospitalization and the need to non-invasive mechanical ventilation in COVID-19 patients.

Lung ultrasound scoring system vs ROX index as a predictor for progression to the invasive mechanical ventilation in COVID-19 patients

Lung ultrasound scoring system vs ROX index as a predictor for progression to the invasive mechanical ventilation in COVID-19 patients

Lung ultrasound scoring system vs ROX index as a predictor for progression to the invasive mechanical ventilation in COVID-19 patients

Lung ultrasound scoring system vs ROX index as a predictor for progression to the invasive mechanical ventilation in COVID-19 patients

245. Can Inflammatory Markers be used as an Early predictor for Mechanical ventilation in COVID-19 patients with Stages IIIb-V Chronic Kidney Disease?

Abstract Background The clinical use of inflammatory markers soared during the COVID-19 pandemic. Though studies have shown C-reactive protein (CRP) to predict mechanical ventilation (MV) in patients with COVID-19, its utility is unknown in patients with chronic kidney disease (CKD), who have elevated baseline CRP levels due to chronic inflammation and reduced renal clearance of inflammatory cytokines. Our aim was to assess the association of inflammatory markers like CRP, ferritin, LDH, D dimer, and MV rate in patients with stages IIIb-V CKD and COVID-19. Methods We conducted a cross-sectional study on inpatients in a community hospital from 12/1/19 to 1/1/22 with COVID-19 and stages IIIb-V CKD without a previous renal transplant. Primary endpoints were invasive MV (IMV) rates, noninvasive MV (NIMV) rates, and no MV. Statistical analyses used unpaired t-test for continuous variables and chi-square analysis for categorical variables. Cutoffs for variables were CRP 100 mg/L, ferritin 530ng/ml, D-dimer 0.5mg/L and LDH 590 U/L. Univariate analysis and Area under curve (AUC-ROC) between the covariates and outcomes were computed. Results 290 patients were screened, and 118 patients met inclusion criteria. CRP, D dimer, and ferritin were significantly different among the three groups. On univariate analysis for IMV, CRP had an OR 5.44; ferritin, OR 2.8; LDH, OR 7.7; D-dimer, OR 3.9, WBC count, OR 4.2 (p&amp;lt; 0.05). Admission CRP level was 0.747 for the IMV group (AUC-ROC, sensitivity 80.8%, specificity 50%) and 0.663 for the NIMV group (AUC-ROC, sensitivity 69.2%, specificity 53%) Conclusion Our results illustrate a positive correlation between CRP, ferritin, and D-dimer levels and MV and NIMV rates. The ROC demonstrates a good sensitivity for CRP levels in detecting MV thereby emphasizing the utility of these biomarkers as good predictive markers in COVID-19 patients with CKD. With increasing use of inflammatory markers to prognosticate disease severity in COVID, the applicability of these markers in different populations should be investigated. A similar pattern of elevated inflammatory markers predicting the rate of MV was found in patients with stages IIIb-V CKD. This may be because of the greater magnitude of increased inflammation due to COVID-19 itself compared with increased inflammation due to CKD alone. Disclosures All Authors: No reported disclosures.

Systematic Review and Meta-Analysis of Statin Use and Mortality, Intensive Care Unit Admission and Requirement for Mechanical Ventilation in COVID-19 Patients.

There is mounting evidence that statin use is beneficial for COVID-19 outcomes. We performed a systematic review and meta-analysis to evaluate the association between statin use and mortality, intensive care unit (ICU) admission and mechanical ventilation in COVID-19 patients, on studies which provided covariate adjusted effect estimates, or performed propensity score matching. We searched PubMed, Embase, Web of Science and Scopus for studies and extracted odds or hazard ratios for specified outcome measures. Data synthesis was performed using a random-effects inverse variance method. Risk of bias, heterogeneity and publication bias were analyzed using standard methods. Our results show that statin use was associated with significant reductions in mortality (OR = 0.72, 95% CI: 0.67–0.77; HR = 0.74, 95% CI: 0.69, 0.79), ICU admission (OR = 0.94, 95% CI: 0.89–0.99; HR = 0.76, 95% CI: 0.60–0.96) and mechanical ventilation (OR = 0.84, 95% CI: 0.78–0.92; HR = 0.67, 95% CI: 0.47–0.97). Nevertheless, current retrospective studies are based on the antecedent use of statins prior to infection and/or continued use of statin after hospital admission. The results may not apply to the de novo commencement of statin treatment after developing COVID-19 infection. Prospective studies are lacking and necessary.

COVID-19 versus seasonal influenza: myocardial injury and prognostic importance

BackgroundAcute myocardial injury is associated with poor prognosis in respiratory tract infections. We aimed to highlight the differences in prevalence of myocardial injury and its impact on prognosis in patients with COVID-19 compared to those with seasonal influenza.MethodsThis was a single-center prospective cohort study with a historical control group. 300 age-/sex-matched SARS-CoV-2 and seasonal influenza positive patients were enrolled. Myocardial injury was assessed by electrocardiogram (ECG), transthoracic echocardiography and biomarkers including high-sensitivity troponin-I. All patients were followed-up for 30 days after enrollment for all-cause mortalitiy, admission to the intensive care unit (ICU) and mechanical ventilation.ResultsRight ventricular distress was more common in COVID-19 whereas pathological ECG findings and impaired left ventricular function were more prevalent among influenza patients. COVID-19 patients suffered from a higher percentage of hypertension and dyslipidaemia. Contrary to COVID-19, pericardial effusion at admission was associated with poor outcome in the influenza group. Severe course of disease and respiratory failure resulted in significantly higher rates of ICU treatment and mechanical ventilation in COVID-19 patients. Although distribution of myocardial injury was similar, significantly fewer cardiac catheterizations were performed in COVID-19 patients. However, number of cardiac catheterizations was low in both groups. Finally, 30-day mortality was significantly higher in COVID-19 compared to influenza patients.ConclusionsIn adults requiring hospitalization due to COVID-19 or seasonal influenza, cardiovascular risk factors and signs of myocardial distress differ significantly. Furthermore, cardiovascular comorbidities may impair prognosis in COVID-19 patients to a higher degree than in their influenza counterparts.

Risk Factors of Transfer to Mechanical Ventilation of COVID-19 Patients in a Retrospective Non-Randomized Study

Background. The COVID-19 pandemic is associated with significant number of complications and mortality and a burden on the healthcare system. In 1015% of hospitalized patients, the invasive and non-invasive mechanical ventilation (IMV/NIMV) is required. At the same time, it is important to stratify the risk of mechanical ventilation upon admission to the hospital. Aims to identify clinical and laboratory risk factors for transfer to IMV and NIMV in hospitalized patients with COVID-19-associated pneumonia. Methods. A retrospective one-center nonrandomized study of 386 consecutive hospitalized patients with COVID-19-associated pneumonia was performed. The primary endpoints were IMV (n=22) and NIMV (n=28). Risk factors of artificial ventilation were considered for periods up to 14 and 28 days for both variants. To select a risk predictor, a univariate analysis based on Cox survival regression was performed, followed by multivariate analysis to determine risk factors at these time points. Results. After 28 days from admission the mortal exit was registered in 20 patients from 386 patients (5.2%). 22 patients (5.7%) were transferred to IMV, and 28 patients (7.3%) to NIV, and 9 of the latter were transferred later to IMV. As a result of univariate and multivariate analyzes, the risk factors for transfer to mechanical ventilation on 14th day were: age 65 years (OR=5.91), a history of stroke (OR=17.04), an increased serum level of urea (OR=6.36), LDH (OR=7.39), decreased sodium (OR=12.32), GFR 80 mL/min/1.73 m2 (OR=13.75) and platelets (OR=4.14); on the 28th day age 65 years (OR=4.58), J-wave on the ECG (OR=2.98), an increase of LDH (OR=9.99) and a decrease in albumin (OR=2.77) in serum. Predictors of the transfer of patients with COVID-19 to NIV within the period up to 14 days from the beginning of hospitalization were the age 65 years (OR=5.09), procalcitonin level in the blood 0.25 ng/ml (OR=0.19), leukocytes 11109 (OR=19.64) and increased LDH (OR=3.9). Conclusions. In patients with COVID-19, the risk factors for transfer to IMV/NIVL in the period of 14 and 28 days from the beginning of hospitalization were identified, which enable patients mechanical ventilation stratification and to plan respiratory support resources.

Association between respiratory distress time and invasive mechanical ventilation in COVID-19 patients: A multicentre regional cohort study

AimTo determine whether the duration of respiratory distress symptoms in severe COVID-19 pneumonia affects the need for invasive mechanical ventilation and clinical outcomes. Materials and methodsAn observational multicentre cohort study of patients hospitalised in five COVID-19–designated ICUs of the University Hospitals of Emilia-Romagna Region. Patients included were adults with pneumonia due to SARS-CoV-2 with PaO₂/FiO₂ ratio <300 mmHg, respiratory distress symptoms, and need for mechanical ventilation (invasive or non-invasive). Exclusion criteria were an uncertain time of respiratory distress, end-of-life decision, and mechanical respiratory support before hospital admission. Measurements and main resultsWe analysed 171 patients stratified into tertiles according to respiratory distress duration (distress time, DT) before application of mechanical ventilation support. The rate of patients requiring invasive mechanical ventilation was significantly different (p < 0.001) among the tertiles: 17/57 patients in the shortest duration, 29/57 in the intermediate duration, and 40/57 in the longest duration. The respiratory distress time significantly increased the risk of invasive ventilation in the univariate analysis (OR 5.5 [CI 2.48–12.35], p = 0.003). Multivariable regression analysis confirmed this association (OR 10.7 [CI 2.89–39.41], p < 0.001). Clinical outcomes (mortality and hospital stay) did not show significant differences between DT tertiles. DiscussionAlbeit preliminary and retrospective, our data raised the hypothesis that the duration of respiratory distress symptoms may play a role in COVID-19 patients’ need for invasive mechanical ventilation. Furthermore, our observations suggested that specific strategies may be directed towards identifying and managing early symptoms of respiratory distress, regardless of the levels of hypoxemia and the severity of the dyspnoea itself.

Utility of a Pulmonary Oedema Score for Predicting the Need for Mechanical Ventilation in COVID-19 Patients in a General Hospital

BackgroundThe Radiographic Assessment of Lung Edema (RALE) score has been used to estimate the extent of pulmonary damage in patients with acute respiratory distress syndrome and might be useful in patients with COVID-19.Aim of the studyTo examine factors associated with the need for mechanical ventilation in hospitalized patients with a clinical diagnosis of COVID-19, and to estimate the predictive value of the RALE score.MethodsIn a series of patients admitted between April 14 and August 28, 2020, with a clinical diagnosis of COVID-19, we assessed lung involvement on the chest radiograph using the RALE score. We examined factors associated with the need for mechanical ventilation in bivariate and multivariate analysis. The area under the receiver operating curve (AUC) indicated the predictive value of the RALE score for need for mechanical ventilation.ResultsAmong 189 patients, 90 (48%) were judged to need mechanical ventilation, although only 60 were placed on a ventilator. The factors associated with the need for mechanical ventilation were a RALE score >6 points, age >50 years, and presence of chronic kidney disease. The AUC for the RALE score was 60.9% (95% CI 52.9–68.9), indicating it was an acceptable predictor of needing mechanical ventilation.ConclusionsA score for extent of pulmonary oedema on the plain chest radiograph was a useful predictor of the need for mechanical ventilation of hospitalized patients with COVID-19.

Mechanical ventilation in CoVID-19 patients: A point of view

Mechanical ventilation in CoVID-19 patients: A point of view

Low Molecular Weight Heparin Doses and Ventilator Airway Necessity in the COVID-19 Patients: Systematic Review and Meta-analysis

BACKGROUND: Anticoagulant therapy is recommendation for COVID-19 infection. However, the mechanical ventilation needed for COVID-19 is still high. AIM: The aim of the study was to determine comparison therapeutic and prophylactic dose LMWH for mechanical necessity in COVID-19 infection. METHODS: A systematic literature search articles online from studies published between 2020 and 2021 that met our inclusion criteria and were retrieved from scientific databases such as Cochrane, ProQuest, and PubMed. The primary measure was a composite bad outcome, which included mechanical ventilation, mortality. and bleeding risk. RESULTS: There were 3432 patients from seven study included in this meta-analysis for necessity of mechanical ventilation in COVID-19 patients that used prophylactic and therapeutic anticoagulants. Prophylactic dose of anticoagulant showed no difference for the need for mechanical ventilation necessity for COVID-19 patients (RR = 0.54; 95% CI = 0.20–1.48; p = 0.23). However, prophylactic anticoagulant showed more safe for bleeding incidence (RR = 0.27; 95% CI = 0.18–0.39; p = &lt;0.00001) and reduce mortality (RR = 0.52; 95% CI = 0.46-0.58; p = &lt;0.00001). CONCLUSION: LMWH anticoagulant dose not associated with reduce mechanical ventilation necessity but prophylactic dose prefers rather than therapeutic dose for reduce mortality and risk of bleeding.

Mechanical Ventilation in COVID-19 Patients: Insights into the Role of Age and Frailty from a Multicentre Observational Study.

In patients with COVID-19, frailty has been shown to better predict outcomes than age alone. We investigated factors associated with mechanical ventilation (MV) during hospitalization for COVID-19 among older adults in a multicentre study during the first two waves in Italy. Using data from the FRACOVID project, we included consecutive patients admitted to the participating centres during the first and second waves. We recorded sociodemographics, comorbidities, time since symptom onset, ventilatory support at admission, and chest X-ray findings. Frailty was assessed using a frailty index (FI). Results are reported as hazard ratios (HR) with 95%CI. 1,344 patients were included; 487 females (36.2%), median age 68 (56; 79) years; 52.4% had hypertension, 10.6% had chronic obstructive pulmonary disease, 15.2% were obese. Median FI was 0.088 (0.03, 0.20), and 67% had bilateral consolidations at admission. Median time since symptom onset was 7 days (4, 10). During hospitalization, 47 patients (3.6%, 95%CI 0.33-13.6%) received MV. Multivariable Cox regression analysis found that the likelihood of intubation decreased with increasing age (HR 0.945 (95%CI 0.921-0.969), p<0.0001), while heart rate >110bpm (HR 3.429 (95%CI 1.583-7.429), p=0.0018), and need for continuous positive airway pressure (CPAP) at admission (HR 2.626 (95%CI 1.330-5.186), p=0.0054) were significantly associated with a greater likelihood of intubation. Older patients are less likely to receive intubation, while those with heart rate >110 bpm and need for CPAP at admission are more likely to receive MV during hospitalization for COVID-19.