scholarly journals PREVENTION OF RESPIRATORY MUSCLE DYSFUNCTION DUE TO DIAPHRAGM ATROPHY IN CHILDREN WITH RESPIRATORY FAILURE

2020 ◽  
pp. 40-45
Author(s):  
Olha Filyk

The aim of the study was to determine whether diaphragm-protective mechanical ventilation can prevent diaphragm atrophy in children with respiratory failure. Materials and methods. We complete the prospective single-center cohort study. Data analysis included 82 patients 1 month - 18 years old, divided into I group (lung-protective MV) and II group (diaphragm-protective in addition to lung-protective MV). Patients were divided into age subgroups. Stages of the study: 1st day (d1), 3rd (d3), 5th (d5), 7th (d7), 9th (d9), 28th (d28). We studied changes in diaphragm thickness at the end of exhalation and compared them with these indicators at patient`s admission to the study (baseline). Primary endpoint was length of stay in ICU, secondary endpoints were complications (prolonged MV). Results are described as arithmetic mean (X) and standard deviation (σ) with level of significance p. Results. There were significant differences in length of stay in ICU among patients of the 1st and 5th age subgroups: in 1st age subgroup this data was in 1.3 times lower in II group, compared with I group (p <0,05); in 5th age subgroup the situation was the opposite - length of stay in ICU was in 1.4 times higher in II group, compared with I group (p<0.05). There were no patients who required lifelong mechanical ventilation in any of the groups. Changes in the thickness of the diaphragm, which indicate its atrophy, were the most significant among patients of the first, second, third and fourth age subgroups and the severity of atrophy was higher among patients of group I, compared with patients of group II. Conclusions. Diaphragm-protective mechanical ventilation significantly prevents diaphragm atrophy in children with respiratory failure in 2nd, 4th, and 5th age subgroups. Providing goal-directed diaphragm-protective MV might reduce the length of stay in ICU among patients of 1st and 5th age subgroups. There were no observed complications like lifelong mechanical ventilation in both patient`s group.

2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Fatima Ahmed ◽  
Ashraf Abugroun ◽  
Manar Elhassan ◽  
Berhane Seyoum

Abstract Introduction: Patients with underlying heart failure (HF) are at increased risk for hyperosmolar hyperglycemic state (HHS). However, no studies have investigated whether the presence of existing HF would impact the outcomes of HHS. Objective: we aimed to study the impact of heart HF on outcomes of HHS among adult patients hospitalized for HHS. Methodology: The National Inpatient Sample (NIS) was queried for all patients who were admitted with a diagnosis of hyperosmolar hyperglycemic state during the years 2005-2014. The primary outcomes of the study were all-cause mortality, acute myocardial infarction (MI), acute stroke. The secondary outcomes were acute kidney injury (AKI), rhabdomyolysis, acute respiratory failure (ARF), need for mechanical ventilation (MV), length of stay (LOS), and total cost of stay. Results: Overall, 188,725 patients were admitted for hyperosmolar hyperglycemic state. Mean age was 55.9 (SEM: 0.1). Females were (43.9%), Caucasians were 37.4% while African American were 35.2%. Total mortality was 1.1%, MI was 1.3% and stroke was 1.1%. Most common secondary outcome was AKI seen in 31.3% followed by ARF seen in 2.9% of total. The mean cost was 7887 $ (SEM: 84.6) and mean LOS was 4.1 days (SEM: 0.03). Patients with heart failure had higher rates for mortality 2% vs 0.9%, p&lt;0.001, MI 3.1% vs 1.1 % p&lt;0.001 and stroke 1.6% vs 1%, p&lt;0.001. In addition, they had higher rates for AKI, ARF, need for mechanical ventilation, length of stay and cost. No significant difference on risk for rhabdomyolysis. On multivariable analysis, patients with heart failure had higher odds for mortality adjusted odd’s ratio (a OR) 1.58 [95%CI: 1.15-2.17] p&lt;0.01 and higher risk for stroke a OR 1.43 [95%CI:1.04-1.95] p=0.03. In addition, presence of heart failure significantly correlated with ARF, need for mechanical ventilation, higher cost and longer LOS. No significant association was demonstrated between heart failure and risk for Rhabdomyolysis, MI and AKI. Conclusion: Diabetic patients with heart failure who develop hyperosmolar hyperglycemic state are at higher risk for stroke and mortality and respiratory failure. Particular attention on fluid balance as well as early recognition for signs of stroke is warranted.


2020 ◽  
Author(s):  
Johannes Eimer ◽  
Jan Vesterbacka ◽  
Anna-Karin Svensson ◽  
Bertil Stojanovic ◽  
Charlotta Wagrell ◽  
...  

Background: Hyperinflammation is a key feature of the pathogenesis of COVID-19 with a central role of the interleukin-6 pathway. We aimed to study the impact of the IL-6 receptor antagonist tocilizumab on the outcome of patients admitted to the intensive care unit (ICU) with acute respiratory distress syndrome (ARDS) related to COVID-19. Methods: Eighty-seven patients with confirmed SARS-CoV-2 infection and moderate to severe ARDS were included (n tocilizumab = 29, n controls = 58). A matched cohort was created using a propensity score. The primary endpoint was 30-day all-cause mortality, secondary endpoints included ventilation-free days and length of stay. Results: No difference was found in 30-day all-cause mortality in patients treated with tocilizumab compared to controls (17.2% vs. 32.8%, p = 0.2; HR = 0.52 [0.19 - 1.39], p = 0.19). Ventilator-free days were 19.0 (IQR 12.5 - 20.0) versus 9 (IQR 0.0 - 18.5; p = 0.04), respectively. A higher rate of freedom from mechanical ventilation at 30 days was achieved in patients receiving tocilizumab (HR 2.83 [1.48 - 5.40], p < 0.002). Median length of stay in ICU and total length of stay were reduced by 8 and 9.5 days in patients treated with tocilizumab. Similar results were obtained in the analysis of the propensity score matched cohort. Conclusions: Treatment of critically ill patients with ARDS due to COVID-19 with tocilizumab was not associated with reduced 30-day all-cause mortality, but shorter duration on ventilatory support as well as shorter overall length of stay in hospital and in ICU.


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Luigi Camporota ◽  
Nicholas Barrett

Mechanical ventilation in patients with respiratory failure has been associated with secondary lung injury, termed ventilator-induced lung injury. Extracorporeal venovenous carbon dioxide removal (ECCO2R) appears to be a feasible means to facilitate more protective mechanical ventilation or potentially avoid mechanical ventilation in select patient groups. With this expanding role of ECCO2R, we aim to describe the technology and the main indications of ECCO2R.


2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
S Nandiwada ◽  
S Islam ◽  
J Jentzer ◽  
PE Miller ◽  
CB Fordyce ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Background  The incidence of respiratory failure and the provision of invasive and non-invasive mechanical ventilation (MV) in patients admitted to cardiac intensive care units (CICU) are increasing. While institutional MV volumes are associated with reduced mortality in medical and surgical ICUs, this relationship has not been characterized in the CICU population. Purpose  By describing the relationship between institutional MV volume and outcomes in the CICUs, we hope to shed light on minimum volume benchmarks for providing MV. Methods  National Canadian population-based data from 2005 to 2015 was used to identify patients admitted to CICUs requiring MV. CICUs were categorized into low (≤100), intermediate (101-300), and high (&gt;300) volume centers based on spline knots identified in the association between annual MV volume and mortality (Figure). Outcomes of interests included all-cause in-hospital mortality, the proportion of patients requiring prolonged MV (&gt;96 hours) and CICU length of stay (LOS). Results  Among the 47,173 CICU admissions that required MV, 89.5% (42,200) required invasive mechanical ventilation. The median annual CICU MV volume was 127 (range 1-490). In-hospital mortality was lower in intermediate (29.2%, adjusted odds ratio [aOR] 0.84, 95% CI 0.72-0.97, p = 0.019) and high-volume (18.2%; aOR 0.82, 95% CI 0.66-1.02, p = 0.076) centers, compared to low volume centers (35.9%). The proportion of patients requiring prolonged MV was higher in low-volume (29.2%) compared to high-volume (14.8%, OR 0.70, 95% 0.55-0.89, p = 0.003) centers. Point estimates for mortality and prolonged MV were lower in PCI-capable and academic centers (Table). Significantly (p &lt;0.01) lower CICU LOS was observed only in the subgroup of PCI-capable intermediate- and high-volume hospitals. Conclusions  In a national dataset, we observed that higher CICU MV hospital volumes were associated with lower in-hospital mortality, CICU LOS, and fewer episodes of prolonged MV. Pending further validation, these data suggest minimum MV volume benchmarks for CICUs caring for patients with respiratory failure. Further research is warranted to explore these associations in more detail. Unadjusted volume-outcome relationshipsOutcomesGroup 1 Annual Volume ≤100Group 2 Annual Volume 101-300Group 3 Annual Volume &gt;300Totalp-valueTotal N1770224351512047173In-hospital mortality6357 (35.0%)7122 (29.2%)933 (18.2%)14412 (30.6%)p &lt; 0.0001Median CICU LOS(hours)85796679p &lt; 0.0001Episodes of prolonged MV5161 (29.2%)5608 (23.0%)758 (14.8%)11527 (24.4%)p &lt; 0.0001Abbreviations OR (odds ratio), RD (risk difference), CI (confidence interval), PCI (percutaneous coronary intervention), LOS (length of stay)Abstract Figure. Annual CICU MV volume and mortality


Critical Care ◽  
2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Ricard Mellado-Artigas ◽  
◽  
Bruno L. Ferreyro ◽  
Federico Angriman ◽  
María Hernández-Sanz ◽  
...  

Abstract Purpose Whether the use of high-flow nasal oxygen in adult patients with COVID-19 associated acute respiratory failure improves clinically relevant outcomes remains unclear. We thus sought to assess the effect of high-flow nasal oxygen on ventilator-free days, compared to early initiation of invasive mechanical ventilation, on adult patients with COVID-19. Methods We conducted a multicentre cohort study using a prospectively collected database of patients with COVID-19 associated acute respiratory failure admitted to 36 Spanish and Andorran intensive care units (ICUs). Main exposure was the use of high-flow nasal oxygen (conservative group), while early invasive mechanical ventilation (within the first day of ICU admission; early intubation group) served as the comparator. The primary outcome was ventilator-free days at 28 days. ICU length of stay and all-cause in-hospital mortality served as secondary outcomes. We used propensity score matching to adjust for measured confounding. Results Out of 468 eligible patients, a total of 122 matched patients were included in the present analysis (61 for each group). When compared to early intubation, the use of high-flow nasal oxygen was associated with an increase in ventilator-free days (mean difference: 8.0 days; 95% confidence interval (CI): 4.4 to 11.7 days) and a reduction in ICU length of stay (mean difference: − 8.2 days; 95% CI − 12.7 to − 3.6 days). No difference was observed in all-cause in-hospital mortality between groups (odds ratio: 0.64; 95% CI: 0.25 to 1.64). Conclusions The use of high-flow nasal oxygen upon ICU admission in adult patients with COVID-19 related acute hypoxemic respiratory failure may lead to an increase in ventilator-free days and a reduction in ICU length of stay, when compared to early initiation of invasive mechanical ventilation. Future studies should confirm our findings.


2021 ◽  
Author(s):  
Ricard Mellado Artigas ◽  
Bruno L. Ferreyro ◽  
Federico Angriman ◽  
María Hernández-Sanz ◽  
Egoitz Arruti ◽  
...  

Abstract Purpose: Whether the use of high-flow nasal oxygen in adult patients with COVID-19 associated acute respiratory failure improves clinically relevant outcomes remains unclear. We thus sought to assess the effect of high-flow nasal oxygen on ventilator-free days, compared to early initiation of invasive mechanical ventilation, on adult patients with COVID-19.Methods: We conducted a multicentre cohort study using a prospectively collected database of patients with COVID-19 associated acute respiratory failure admitted to 36 Spanish and Andorran intensive care units (ICUs). Main exposure was the use of high-flow nasal oxygen (conservative group), while early invasive mechanical ventilation (within the first day of ICU admission; early intubation group) served as the comparator. The primary outcome was ventilator-free days at 28 days. ICU length of stay and all-cause in-hospital mortality served as secondary outcomes. We used propensity score matching to adjust for measured confounding.Results: Out of 468 eligible patients, a total of 122 matched patients were included in the present analysis (61 for each group). When compared to early intubation, the use of high-flow nasal oxygen was associated with an increase in ventilator-free days (mean difference: 8.0 days; 95% confidence interval (CI): 4.4 to 11.7 days), and a reduction in ICU length of stay (mean difference: -8.2 days; 95% CI -12.7 to -3.6 days). No difference was observed in all-cause in-hospital mortality between groups (odds ratio: 0.64; 95% CI: 0.25 to 1.64).Conclusions: The use of high-flow nasal oxygen upon ICU admission in adult patients with COVID-19 related acute hypoxemic respiratory failure may lead to an increase in ventilator-free days and a reduction in ICU length of stay, when compared to early initiation of invasive mechanical ventilation. Future studies should confirm our findings.


2020 ◽  
Vol 27 (3) ◽  
pp. E2020311
Author(s):  
Olha Filyk

The objective of the research was to establish the impact of diaphragm-protective mechanical ventilation on the rate of successful weaning from invasive and non-invasive mechanical ventilation in children with acute respiratory failure. Materials and Methods. We conducted a prospective, observational cohort study. Seventy-eight patients were randomly divided into 2 groups: patients of Group I received lung-protective mechanical ventilation; patients of Group II received diaphragm-protective + lung-protective mechanical ventilation. For age-specific data analysis, patients were divided into age subgroups: the 1st subgroup included children being 1 to 12 months old; the 2nd age subgroup comprised children being 12 to 36 months old. We started respiratory support in both groups with invasive mechanical ventilation and when patients met the criteria, we weaned them. We confirmed successful weaning, when patients had no need to be mechanically ventilated within next 48 hours, otherwise, they were intubated again. Before the second trial to wean, patients in Group I were simply extubated, while patients in Group II received non-invasive mechanical ventilation. The primary endpoint was the rate of successful weaning from mechanical ventilation in the first trial. The secondary outcomes were complications, namely reintubation rate, tracheostomy rate and death. Results. We found a significant difference in the primary outcome for the 1st age subgroup: there were 72.4% in Group I vs. 52.6% in Group II successfully weaned patients (p=0.04). No significant difference in the primary outcome was observed in the 2nd age subgroup: there were 80% in Group I vs. 82.3% in Group II successfully weaned patients (p=0.78). There were significant differences in the secondary outcomes between groups in the 1st age subgroup, namely reintubation rate was seen in 9.1% patients of Group I vs. 36.8% patients of Group II (p=0.05); death happened in 18.2% cases in Group I vs. no cases in Group II (p=0.01). There were no differences in tracheostomy rate in the 1st age subgroup and there were no differences in the  secondary outcomes between groups in 2nd age subgroup. Conclusions. Diaphragm-protective mechanical ventilation significantly reduced the incidence of successful weaning from invasive mechanical ventilation; however, it increased the incidence of successful weaning from non-invasive mechanical ventilation, and, significantly decreased the mortality rate in the 1st age subgroup, while in the 2nd age subgroup, it had no impact on the incidence of successful weaning from invasive mechanical ventilation and mortality rate.


Author(s):  
Hawa Edriss ◽  
Shengping Yang ◽  
Edna Juarez ◽  
Joshua Crane ◽  
Michelle Lear ◽  
...  

Background: Pressures measured during mechanical ventilation provide important information about the respiratory system mechanics and can help predict outcomes. Methods: The electronic medical records of patients hospitalized between 2010 and 2016 with sepsis who required mechanical ventilation were reviewed to collect demographic information, clinical information, management requirements, and outcomes, such as mortality, ICU length of stay, and hospital length of stay. Mechanical ventilation pressures were recorded on the second full day of hospitalization. Results: This study included 312 adult patients. The mean age is 59.1 ± 16.3 years; 57.4% were men. The mean BMI was 29.3 ± 10.7. Some patients had pulmonary infections (46.2%), and some patients had extrapulmonary infections (34.9%). The overall mortality was 42.6%. In a multi-variable model that included age, gender, number of comorbidities, APACHE 2 score, and PaO2/FiO2 ratio, peak pressure, plateau pressure, driving pressure, and PEEP all predicted mortality when entered into the model separately. There was an increase in peak pressure, plateau pressure, and driving pressure across BMI categories ranging from underweight to obese. Conclusions: This study demonstrates that ventilator pressure measurements made early during the management of patients with acute respiratory failure requiring mechanical ventilation provide prognostic information regarding outcomes, including mortality. Patients with high mechanical ventilator pressures during the early course of their acute respiratory failure require more attention to identify reversible disease processes when possible. In addition, increased BMIs are associated with increased ventilator pressures, and this increases the complexity of the clinical evaluation in the management of obese patients.


2020 ◽  
pp. 10-13
Author(s):  
O. V. Filyk

Acute respiratory failure is a component of the multiorgan dysfunction syndrome and a common cause of death among the children treated in intensive care units. Readiness to wean a patient from a mechanical ventilation is determined by a set of indices, including the data on the level of hypoxemia and its ability to regress under the influence of oxygen therapy. The indices such as the paO2/FiO2 and SpO2/FiO2 ratios are valid for determining the severity of hypoxemia. In order to study the dynamics of changes in SpO2/FiO2, paO2/FiO2, oxygenation index and the one of frequent shallow breathing in the children with acute respiratory failure as well as to substantiate the criteria for their readiness to wean from pulmonary ventilation, a prospective, observational cohort investigation in patients aged from 1 month to 18 years was performed. The patients of group I received pulmonary−protective strategy of mechanical lung ventilation, II − in addition to it received the diaphragm−protective strategy. The ratios of SpO2/FiO2 and paO2/FiO2, oxygenation index and frequent shallow respiration index were calculated. Weaning was considered successful if the patient did not require a respiratory therapy after extubation for the next 48 hours. The primary endpoint of the assessment was the duration of weaning from mechanical ventilation, the secondary ones were the SpO2 / FiO2, paO2 / FiO2, oxygenation index, the one of frequent shallow breathing. Significant differences in SpO2 / FiO2 and paO2 / FiO2 indices were found on days 5 and 9 of the study. It was found that at paO2 / FiO2 values less than 200 and SpO2 / FiO2 less than 265 the prognosis of weaning is unfavorable. Key words: children, oxygenation, mechanical ventilation.


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