Hospital Mortality and Effect of Adjusting PaO2/FiO2 According to Altitude Above the Sea Level in Acclimatized Patients Undergoing Invasive Mechanical Ventilation. A Multicenter Study

Abstract Background: Previous studies suggested that plasma B-type natriuretic peptide (BNP) level was often elevated in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and was associated with increased mortality. However, most studies did not consider the fact that conditions such as coronary ischemic heart disease can also increase BNP level. Therefore, we aimed to explore the association between BNP level and in-hospital mortality in patients with AECOPD without a history of coronary ischemic heart disease.Methods: In this retrospective cohort study, patients who were diagnosed with AECOPD using International Statistical Classification of Diseases and Related Health Problems, Nineth Revision (ICD-9 codes) between January 2017 and December 2019. All data were obtained from electronic patient files and medical data intelligence platform of Jinan Central Hospital. BNP level was determined within 24 hours after admission, and the value was log2 transformed. The primary outcome was in-hospital mortality, and the secondary outcome was a composite outcome of in-hospital mortality or invasive mechanical ventilation.Results: A total of 300 patients were included in this study. Univariate cox regression analysis showed that the unadjusted HRs of the primary and secondary outcomes were 1.85 (95% CI, 1.39-2.47) and 1.45 (95% CI, 1.20-1.75), respectively. After adjustment for age, sex, past medical history, smoking status, drinking status, CURB65 (Confusion, Urea > 7mmol/L, Respiratory rate≥30/min, Blood pressure systolic < 90 mmHg or diastolic <60 mmHg and age > 65 years), arterial partial pressure of O2(PaO2), the adjusted HRs of the primary and secondary outcomes were 3.65 (95% CI, 2.54-5.26) and 1.43 (95% CI, 1.14-1.97), respectively. The results of subgroup analysis by age, sex, and lung function were robust. This study was retrospective, so there was no clinical trial registration.Conclusions: The plasma log2BNP level was significantly associated with in-hospital mortality and a composite outcome of in-hospital mortality or invasive mechanical ventilation.

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Abstract 17292: Does Morbid Obesity Worsens Outcomes in COVID-19?

Circulation ◽

10.1161/circ.142.suppl_3.17292 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

Sohaib Roomi ◽

Waqas Ullah ◽

Nayab Nadeem ◽

Rehan Saeed ◽

Donald Haas ◽

...

Keyword(s):

Morbid Obesity ◽

Mechanical Ventilation ◽

Hospital Mortality ◽

Invasive Mechanical Ventilation ◽

Multivariate Logistic Regression Analysis ◽

Odds Ratios ◽

Increased Risk ◽

Significant Difference ◽

The Mean ◽

Mean Differences

Introduction: Given the high prevalence of obesity around the globe, patients with coronavirus disease 2019 (COVID-19) are at an increased risk of devastating complications. Hypothesis: We hypothesize that morbid obesity is independently associated with increased risk of in-hospital mortality, upgrade to intensive care unit, invasive mechanical ventilation(IVM), and acute renal failure necessitating dialysis. Methods: A retrospective cohort study was performed to determine the association of basal metabolic index (BMI) with the above-mentioned outcomes. Independent t-test and multivariate logistic regression analysis were performed to calculate mean differences and adjusted odds ratios (aOR) with its 95% confidence interval (CI), respectively. Results: A total of 176 patients with confirmed COVID-19 diagnosis were included. The mean age was 62.2 years, with 51% of male patients. The mean BMI for non-surviving patients was significantly higher compared to patients surviving on the 7th day of hospitalization (35 vs. 30 kg/m2, p=0.022) and patients with a higher BMI had higher in-hospital mortality (21% vs. 9%, OR 3.2, 95% CI 1.3-8.2, p=0.01) compared to patients with a normal BMI. Similarly, patients requiring IMV had a higher BMI (33 vs. 29, p=0.002) compared to non-intubated patients. aOR of patients needing IMV (56% vs. 28%, OR 3.3, 95% CI 1.6-7.0, p=0.002) and upgrade to ICU (46% vs. 28%, OR 2.2, 1.07-4.6, p=0.04) were significantly higher compared to patients with a lower BMI. There was no significant difference between the two groups in terms of the need for dialysis (5% vs. 13%, OR 3.8, 13% vs. 4%, 1.1-14.1, p=0.07). Adjusted odds ratios controlled for baseline comorbidities and medications mirrored the overall results, except for the need to upgrade to ICU. Conclusions: In patients with confirmed COVID-19, morbid obesity serves as an independent risk factor of high in-hospital mortality and the need for invasive mechanical ventilation.

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Clinical and paraclinical predictive factors for in-hospital mortality in adult patients with COVID-19

10.21203/rs.3.rs-819065/v1 ◽

2021 ◽

Author(s):

Seyed Alireza Mousavi ◽

Reyhaneh Sadat Mousavi-Roknabadi ◽

Fateme Nemati ◽

Somaye Pourteimoori ◽

Arefeh Ghorbani ◽

...

Keyword(s):

Mechanical Ventilation ◽

Hospital Mortality ◽

Ct Scan ◽

Predictive Factors ◽

Invasive Mechanical Ventilation ◽

Cross Sectional Study ◽

Study Data ◽

Cross Sectional ◽

Factors Affecting ◽

Non Invasive

Abstract Background Since December 2019, a type of coronavirus has emerged in Wuhan, China, which has become the focus of global attention due to an epidemic of pneumonia of unknown cause, called COVID-19. This study aimed to investigate the factors affecting in-hospital mortality of patients with COVID-19 hospitalized in one of the main hospital in central Iran. Methods This retrospective cross-sectional study (February 2019-May 2020) was conducted on patients with confirmed diagnosis COVID-19, who were admitted in Yazd Shahid Sadoughi Hospital, in middle of Iran. The patients with uncompleted or missed medical files were excluded from the study. Data were extracted from the patients' medical files and then analyzed. The patients were categorized as survivors and non-survivors groups, and they were compared. Results Totally, 573 patients were enrolled, that 356 (62.2%) were male. The mean ± SD of age was 56.29 ± 17.53 years, and 93 (16.23%) were died. All the complications were more in non-survivors. Intensive care unit (ICU) admission was in 20.5% of the patients which was more in non-survivors (P < 0.001). The results of multivariate logistic regression test showed that plural effusion in lung computed tomography (CT) scan (OR = 0.055, P = 0.009), white blood cell (WBC) (OR = 1.417, P = 0.022), serum albumin (OR = 0.009, P < 0.001), non-invasive mechanical ventilation (OR = 34.315, P < 0.001), and acute respiratory distress syndrome (ARDS) (OR = 66.039, P = 0.001) were achieved as the predictive factors for in-hospital mortality were the predictive factors for in-hospital mortality. Conclusion In-hospital mortality in patients with COVID-19 was about 16%. Plural effusion in lung CT scan, WBC, albumin, non-invasive mechanical ventilation, and ARDS were obtained as the predictive factors for in-hospital mortality.

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Cancer-Related Characteristics Associated With Invasive Mechanical Ventilation or In-Hospital Mortality in Patients With COVID-19 Admitted to ICU: A Cohort Multicenter Study

Frontiers in Oncology ◽

10.3389/fonc.2021.746431 ◽

2021 ◽

Vol 11 ◽

Author(s):

Pedro Caruso ◽

Renato Scarsi Testa ◽

Isabel Cristina Lima Freitas ◽

Ana Paula Agnolon Praça ◽

Valdelis Novis Okamoto ◽

...

Keyword(s):

Mechanical Ventilation ◽

Hospital Mortality ◽

Odds Ratio ◽

Performance Status ◽

Invasive Mechanical Ventilation ◽

Poor Performance ◽

Metastatic Tumor ◽

Poor Performance Status ◽

Cancer Type ◽

Active Cancer

BackgroundCoexistence of cancer and COVID-19 is associated with worse outcomes. However, the studies on cancer-related characteristics associated with worse COVID-19 outcomes have shown controversial results. The objective of the study was to evaluate cancer-related characteristics associated with invasive mechanical ventilation use or in-hospital mortality in patients with COVID-19 admitted to intensive care unit (ICU).MethodsWe designed a cohort multicenter study including adults with active cancer admitted to ICU due to COVID-19. Seven cancer-related characteristics (cancer status, type of cancer, metastasis occurrence, recent chemotherapy, recent immunotherapy, lung tumor, and performance status) were introduced in a multilevel logistic regression model as first-level variables and hospital was introduced as second-level variable (random effect). Confounders were identified using directed acyclic graphs.ResultsWe included 274 patients. Required to undergo invasive mechanical ventilation were 176 patients (64.2%) and none of the cancer-related characteristics were associated with mechanical ventilation use. Approximately 155 patients died in hospital (56.6%) and poor performance status, measured with the Eastern Cooperative Oncology Group (ECOG) score was associated with increased in-hospital mortality, with odds ratio = 3.54 (1.60–7.88, 95% CI) for ECOG =2 and odds ratio = 3.40 (1.60–7.22, 95% CI) for ECOG = 3 to 4. Cancer status, cancer type, metastatic tumor, lung cancer, and recent chemotherapy or immunotherapy were not associated with in-hospital mortality.ConclusionsIn patients with active cancer and COVID-19 admitted to ICU, poor performance status was associated with in-hospital mortality but not with mechanical ventilation use. Cancer status, cancer type, metastatic tumor, lung cancer, and recent chemotherapy or immunotherapy were not associated with invasive mechanical ventilation use or in-hospital mortality.

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Higher Versus Lower Positive End-Expiratory Pressure in Patients Without Acute Respiratory Distress Syndrome: A Meta-Analysis of Randomized Controlled Trials

10.21203/rs.3.rs-496103/v1 ◽

2021 ◽

Author(s):

Tommaso Pettenuzzo ◽

Annalisa Boscolo ◽

Alessandro De Cassai ◽

Nicolò Sella ◽

Francesco Zarantonello ◽

...

Keyword(s):

Mechanical Ventilation ◽

Acute Respiratory Distress Syndrome ◽

Hospital Mortality ◽

Distress Syndrome ◽

Meta Analysis ◽

Invasive Mechanical Ventilation ◽

Controlled Trials ◽

Positive End Expiratory Pressure ◽

Randomized Controlled ◽

Duration Of Ventilation

Abstract Background: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to assess the association of higher positive end-expiratory pressure (PEEP), as opposed to lower PEEP, with hospital mortality in adult intensive care unit (ICU) patients undergoing invasive mechanical ventilation for reasons other than acute respiratory distress syndrome (ARDS). Methods: We performed an electronic search of MEDLINE, EMBASE, Scopus, Cochrane Central Register of Controlled Trials, CINAHL, and Web of Science from inception until December 18, 2020 with no language restrictions. In addition, a research-in-progress database and grey literature were searched. Results: We identified 22 RCTs (2225 patients) comparing higher PEEP (1007 patients) with lower PEEP (991 patients). No statistically significant association between higher PEEP and hospital mortality was observed (risk ratio 1.02, 95% confidence interval 0.89-1.16; I2 = 0%, p = 0.62; low certainty of evidence). Among secondary outcomes, higher PEEP was associated with better oxygenation, higher respiratory system compliance, and lower risk of hypoxemia and ARDS occurrence. Furthermore, barotrauma, hypotension, duration of ventilation, lengths of stay, and ICU mortality were similar between the two groups. Conclusions: In our meta-analysis of RCTs, higher PEEP, compared with lower PEEP, was not associated with mortality or duration of ventilation in patients without ARDS receiving invasive mechanical ventilation, despite being associated with improved oxygenation and lower occurrence of ARDS.

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Factors Associated with the Poor Outcomes in Diabetic Patients with COVID-19

10.21203/rs.3.rs-34111/v1 ◽

2020 ◽

Author(s):

Hadith Rastad ◽

Hanieh-Sadat Ejtahed ◽

Armita Mahdavi Ghorabi ◽

Anis Safari ◽

Ehsan Shahrestanaki ◽

...

Keyword(s):

Mechanical Ventilation ◽

Hospital Mortality ◽

Creatinine Level ◽

Neutrophil Count ◽

Invasive Mechanical Ventilation ◽

Low Frequency ◽

Diabetic Patients ◽

Logistic Regression Models ◽

The Poor ◽

Poor Outcomes

Abstract Background: Diabetic’s patients are supposed to experience higher rates of COVID-19 related poor outcomes. We aimed to determined factors predicting poor outcomes in hospitalized diabetic patients with COVID-19. Methods: This retrospective cohort study included all adult diabetic patients with radiological or laboratory confirmed COVID-19 who hospitalized between 20 February 2020 and 27 April 2020 in Alborz province, Iran. Data on demographic, medical history, and laboratory test at presentation were obtained from electronic medical records. Diagnosis of diabetes mellitus was self-reported. Comorbidities including cancer, rheumatism, immunodeficiency, or chronic diseases of respiratory, liver, and blood were classified as “other comorbidities” due to low frequency. The assessed poor outcomes were in-hospital mortality, need to ICU care, and receiving invasive mechanical ventilation. Self-reported. Multivariate logistic regression models were fitted to quantify the predictors of in-hospital mortality from COVID-19 in patients with DM. Results: Of 455 included patients, 98(21.5%) received ICU care, 65(14.3%) required invasive mechanical ventilation, and 79 (17.4%) dead. In the multivariate model, significant predictors of “death of COVID-19” were age 65 years or older (OR (95% CI): 2.0 (1.16-3.44), chronic kidney disease (CKD) (2.05 (1.16 -3.62), presence of “other comorbidities” (2.20 (1.04-4.63)), neutrophil count ≥ 8.0 × 10⁹/L )6.62 (3.73-11.7 ((, Hb level <12.5 g/dl (2.05 (1.13-3.72)(, and creatinine level ≥1.36 mg/dl (3.10 (1.38-6.98)). (All p –values < 0.05). Some of these factors were also associated with other assessed poor outcomes, e.g., need to ICU care or invasive mechanical ventilation.Conclusions: Diabetic patients with age 65 years or older, comorbidity CKD, “other comorbidities”, as well as neutrophil count ≥ 8.0 × 10⁹/L, Hb level <12.5 g/dl, and creatinine level ≥1.36 mg/dl, were more likely to dead after COVID-19. Presence of hypertension and cardiovascular disease were associated with none of the poor outcomes.

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Effects of Cytokine Blocking Agents on 30-Day Mortality in Patients Admitted to ICU With Acute Respiratory Distress Syndrome by SARS-CoV2 Infection: An Observational Cohort Study

10.21203/rs.3.rs-37561/v1 ◽

2020 ◽

Author(s):

Irene Coloretti ◽

Stefano Busani ◽

Emanuela Biagioni ◽

Sophie Venturelli ◽

Elena Munari ◽

...

Keyword(s):

Mechanical Ventilation ◽

Acute Respiratory Distress Syndrome ◽

Cohort Study ◽

Hospital Mortality ◽

Respiratory Distress Syndrome ◽

Respiratory Distress ◽

Distress Syndrome ◽

Cox Model ◽

Invasive Mechanical Ventilation ◽

Blocking Agents

Abstract Background The use of cytokine-blocking agents has been proposed to modulate the inflammatory response in patients with COVID19. Tocilizumab and Anakinra were included in the local protocol as an optional treatment in critically ill patients with acute respiratory distress syndrome (ARDS) by SARS-CoV2 infection. This cohort study evaluated the effects of therapy with cytokine blocking agents on in-hospital mortality in COVID19 patients requiring mechanical ventilation and admitted to intensive care unit. Methods The association between therapy with Tocilizumab or Anakinra and in-hospital mortality was assessed in consecutive adult COVID19 patients admitted to our ICU with moderate to severe ARDS. The association was evaluated by comparing patients who receive to those who did not receive Tocilizumab or Anakinra and by using different multivariable Cox models adjusted for variables related to poor outcome, for the propensity to be treated with Tocilizumab or Anakinra and after patient matching. Results Sixty-six patients who received immunotherapy (49 Tocilizumab, 17 Anakinra) and 28 patients who did not receive immunotherapy were included. The in-hospital crude mortality was 30,3% in treated patients and 50% in non-treated (OR 0,77, 95% CI 0,56-1,05, p=0,069). The adjusted Cox model showed an association between therapy with immunotherapy and in-hospital mortality (HR 0,35, 95% CI 0,16-0,77, p=0,009). This protective effect was further confirmed in the analysis adjusted for propensity score, in the propensity-matched cohort and in the cohort of patients with invasive mechanical ventilation within 2 hours after ICU admission. Conclusions Although important limitations, our study showed that cytokine-blocking agents seem to be safe and to improve survival in COVID-19 patients admitted to ICU with ARDS and the need of mechanical ventilation.

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Effects of Cytokine Blocking Agents on Hospital Mortality in Patients Admitted to ICU With Acute Respiratory Distress Syndrome by SARS-CoV2 Infection: An Observational Cohort Study

10.21203/rs.3.rs-37561/v2 ◽

2020 ◽

Author(s):

Irene Coloretti ◽

Stefano Busani ◽

Emanuela Biagioni ◽

Sophie Venturelli ◽

Elena Munari ◽

...

Keyword(s):

Mechanical Ventilation ◽

Acute Respiratory Distress Syndrome ◽

Cohort Study ◽

Hospital Mortality ◽

Respiratory Distress Syndrome ◽

Respiratory Distress ◽

Distress Syndrome ◽

Cox Model ◽

Invasive Mechanical Ventilation ◽

Blocking Agents

Abstract Background The use of cytokine-blocking agents has been proposed to modulate the inflammatory response in patients with COVID19. Tocilizumab and Anakinra were included in the local protocol as an optional treatment in critically ill patients with acute respiratory distress syndrome (ARDS) by SARS-CoV2 infection. This cohort study evaluated the effects of therapy with cytokine blocking agents on in-hospital mortality in COVID19 patients requiring mechanical ventilation and admitted to intensive care unit. Methods The association between therapy with Tocilizumab or Anakinra and in-hospital mortality was assessed in consecutive adult COVID19 patients admitted to our ICU with moderate to severe ARDS. The association was evaluated by comparing patients who receive to those who did not receive Tocilizumab or Anakinra and by using different multivariable Cox models adjusted for variables related to poor outcome, for the propensity to be treated with Tocilizumab or Anakinra and after patient matching. Results Sixty-six patients who received immunotherapy (49 Tocilizumab, 17 Anakinra) and 28 patients who did not receive immunotherapy were included. The in-hospital crude mortality was 30,3% in treated patients and 50% in non-treated (OR 0,77, 95% CI 0,56-1,05, p=0,069). The adjusted Cox model showed an association between therapy with immunotherapy and in-hospital mortality (HR 0,35, 95% CI 0,16-0,77, p=0,009). This protective effect was further confirmed in the analysis adjusted for propensity score, in the propensity-matched cohort and in the cohort of patients with invasive mechanical ventilation within 2 hours after ICU admission. Conclusions Although important limitations, our study showed that cytokine-blocking agents seem to be safe and to improve survival in COVID-19 patients admitted to ICU with ARDS and the need of mechanical ventilation.

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