scholarly journals Utility of Plasma GDF-15 for Diagnosis and Prognosis Assessment of ICU-Acquired Weakness in Mechanically Ventilated Patients: Prospective Observational Study

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Yongpeng Xie ◽  
Suxia Liu ◽  
Hui Zheng ◽  
Lijuan Cao ◽  
Kexi Liu ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Predictive Value ◽  
Muscle Wasting ◽  
Skeletal Muscle Function ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Survival Status ◽  
Level Group ◽  
Icu Acquired Weakness ◽  
Ventilated Patients

Objective. To identify the clinical correlations between plasma growth differentiation factor-15 (GDF-15), skeletal muscle function, and acute muscle wasting in ICU patients with mechanical ventilation. In addition, to investigate its diagnostic value for ICU-acquired weakness (ICU-AW) and its predictive value for 90-day survival in mechanically ventilated patients. Methods. 95 patients with acute respiratory failure, who required mechanical ventilation therapy, were randomly selected among hospitalized patients from June 2017 to January 2019. The plasma GDF-15 level was detected by ELISA, the rectus femoris cross-sectional area (RFcsa) was measured by ultrasound, and the patient’s muscle strength was assessed using the British Medical Research Council (MRC) muscle strength score on day 1, day 4, and day 7. Patients were divided into an ICU-AW group and a non-ICU-AW group according to their MRC-score on the 7th day. The differences in plasma GDF-15 level, MRC-score, and RFcsa between the two groups were compared on the 1st, 4th, and 7th day after being admitted to the ICU. Then, the correlations between plasma GDF-15 level, RFcsa loss, and MRC-score on day 7 were investigated. The receiver operating characteristic curve (ROC) was used to analyze the plasma GDF-15 level, RFcsa loss, and % decrease in RFcsa on the 7th day to the diagnosis of ICU-AW in mechanically ventilated patients. Moreover, the predictive value of GDF-15 on the 90-day survival status of patients was assessed using patient survival curves. Results. Based on whether the 7th day MRC-score was <48, 50 cases were included in the ICU-AW group and 45 cases in the non-ICU-AW group. The length of mechanical ventilation, ICU length of stay, and hospital length of stay were significantly longer in the ICU-AW group than in the non-ICU-AW group (all P<0.05), while the other baseline indicators were not statistically significant between the two groups. As the treatment time increased, the plasma GDF-15 level was significantly increased, the ICU-AW group demonstrated a significant decreasing trend in the MRC-score and RFcsa, while no significant changes were found in the non-ICU-AW group. In the ICU-AW group, the plasma GDF-15 level was significantly higher than that in the non-ICU-AW group, while the RFcsa and the MRC-score were significantly lower than those in the non-ICU-AW group (GDF-15 (pg/ml): 2542.44 ± 629.38 vs. 1542.86 ± 502.86; RFcsa (cm2): 2.04 ± 0.64 vs. 2.34 ± 0.61; MRC-score: 41.22 ± 3.42 vs. 51.42 ± 2.72, all P<0.001). The plasma GDF-15 level was significantly negatively correlated with the MRC-score (r = −0.60), while it was significantly positively correlated with the RFcsa loss (r = 0.18) and the % decrease in RFcsa (r = 0.16). Moreover, the RFcsa loss was significantly negatively correlated with the MRC-score (r = −0.27) (all P<0.001). The ROC curve analysis showed that plasma GDF-15 level, RFcsa loss, and % decrease in RFcsa on day 7 had predictive value for ICU-AW diagnosis in mechanically ventilated patients. More specifically, the area under the ROC curve (AUC) of GDF-15 was 0.904, the AUC of RFcsa loss was 0.873, and the AUC of % decrease in RFcsa was 0.886 (all P<0.001). The 90-day survival curve demonstrated that the survival rate of the high plasma GDF-15 level group was 54.00%, while that of the low plasma GDF-15 level group was 75.56%. The difference between the two groups was statistically significant (P<0.05). Conclusion. The plasma GDF-15 concentration level was significantly associated with skeletal muscle function and muscle wasting on day 7 in ICU patients with mechanical ventilation. Therefore, it can be concluded that the plasma GDF-15 level on the 7th day has a high diagnostic yield for ICU-acquired muscle weakness, and it can predict the 90-day survival status of ICU mechanically ventilated patients.

scholarly journals Selection strategy for sedation depth in critically ill patients on mechanical ventilation

2021 ◽  
Vol 21 (S2) ◽  
Author(s):  
Longxiang Su ◽  
Chun Liu ◽  
Fengxiang Chang ◽  
Bo Tang ◽  
Lin Han ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Dimensionality Reduction ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Latent Profile Analysis ◽  
Profile Analysis ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Sedation And Analgesia ◽  
Ventilated Patients

Abstract Background Analgesia and sedation therapy are commonly used for critically ill patients, especially mechanically ventilated patients. From the initial nonsedation programs to deep sedation and then to on-demand sedation, the understanding of sedation therapy continues to deepen. However, according to different patient’s condition, understanding the individual patient’s depth of sedation needs remains unclear. Methods The public open source critical illness database Medical Information Mart for Intensive Care III was used in this study. Latent profile analysis was used as a clustering method to classify mechanically ventilated patients based on 36 variables. Principal component analysis dimensionality reduction was used to select the most influential variables. The ROC curve was used to evaluate the classification accuracy of the model. Results Based on 36 characteristic variables, we divided patients undergoing mechanical ventilation and sedation and analgesia into two categories with different mortality rates, then further reduced the dimensionality of the data and obtained the 9 variables that had the greatest impact on classification, most of which were ventilator parameters. According to the Richmond-ASS scores, the two phenotypes of patients had different degrees of sedation and analgesia, and the corresponding ventilator parameters were also significantly different. We divided the validation cohort into three different levels of sedation, revealing that patients with high ventilator conditions needed a deeper level of sedation, while patients with low ventilator conditions required reduction in the depth of sedation as soon as possible to promote recovery and avoid reinjury. Conclusion Through latent profile analysis and dimensionality reduction, we divided patients treated with mechanical ventilation and sedation and analgesia into two categories with different mortalities and obtained 9 variables that had the greatest impact on classification, which revealed that the depth of sedation was limited by the condition of the respiratory system.

scholarly journals Effectiveness of Communication Board on Level of Satisfaction Over Communication among Mechanically Venitlated Patients

2020 ◽  
Vol 5 (9) ◽  
pp. 311-316
Author(s):  
Dr. Metilda ◽  
Dr. A. Jaganath
Keyword(s):  
Mechanical Ventilation ◽  
Control Group ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Level Of Satisfaction ◽  
Significant Difference ◽  
Group 15 ◽  
Experimental Group ◽  
Ventilated Patients ◽  
Communication Board

Mechanical ventilation is widely used to treat patients with critical conditions. This treatment is usually applied for difficulty in breathing. The use of mechanical ventilation devices has unique benefits to the patient. However, it can also cause various problems. Reduction in communication rank as one of the most negative experiences in mechanically ventilated patients. Effective communication with ventilator-based patients is essential. Nursing management of a mechanically ventilated patient is challenging on many levels, requiring a wealth of high technical skills. The Patient Communications Board improves communication, maintains information and creates a comfortable, attractive setting for patient, family and health care workers. The research methodology used for the study is a Quasi experimental approach, post-test only design with a comparison group to assess the effect of the communication board on the level of satisfaction over communication among clients on mechanical ventilator. The sample was selected by purposive sampling technique and included 30 (experimental group-15, control group-15), mechanically ventilated patients in PESIMR hospital, Kuppam. The control group patients were provided with routine communication methods, while the experimental group were communicated with communication board. The level of satisfaction on communication was assessed by a 15items rating scale. Data was analysed using both the descriptive and inferential statistics. There was a significant difference in the level of satisfaction on communication among the patients who were communicated using communication board compared to the routine method of communication. The communication board had significantly improved the communication pattern and increased the satisfaction among the patients who are mechanically ventilated.

The Feasibility of Objective Sleep-Quality Assessment in an ICU Setting

2021 ◽  
Vol 104 (2) ◽  
pp. 304-309
Keyword(s):  
Mechanical Ventilation ◽  
Respiratory Failure ◽  
Sleep Quality ◽  
Acute Respiratory Failure ◽  
Critically Ill ◽  
Sleep Stages ◽  
Poor Sleep ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Ventilated Patients

Background: Sleep disruptions frequently occur in hospitalized patients, especially with critically ill, mechanically ventilated patients. Severely altered sleep architectures result in unclassifiable sleep stages as listed by the conventional Rechtschaffen and Kales (R&K) criteria, and a new classification for sleep scoring including atypical sleep (AS) and pathological wakefulness (PW) has recently been proposed. Objective: To demonstrate the feasibility of performing objective sleep qualification in patients receiving mechanical ventilation due to acute respiratory failure. Materials and Methods: In the present prospective cohort study, polysomnography was performed in 38 patients requiring invasive mechanical ventilation due to acute respiratory failure at the respiratory care unit (RCU) of Siriraj Hospital between February and December 2017. Their sleep stages were analyzed by conventional rules and the new classifications of AS and PW. The associations between the presence of AS or PW and the patients’ characteristics were analyzed. Correlations between sleep quality and clinical parameters were also determined. Results: Most of the patients had poor sleep quality with median sleep efficiency (IQR) of 35.9% (18.5, 62.3) and significantly decreased slowwave sleep [median (IQR) 0.4% (0.00, 5.70)] and REM [median (IQR) 1.3% (0.00, 6.43)]. According to the new classifications, 14 out of 38 (prevalence of 36.8%) mechanically ventilated patients had AS. The prevalence of PW and either AS or PW were 36.8% and 52.6%, respectively. A higher baseline respiratory rate was observed among patients who had either AS or PW at 24 versus 20 breaths/minute (p=0.02), while a longer duration of mechanical ventilator support was found in patients with PW at nine versus five (p=0.003). Patient-ventilator asynchrony was also noted in all patients. Conclusion: Sleep quality among critically ill and mechanically ventilated patients was severely disturbed. A higher prevalence of AS and PW were noted. The technical feasibility of sleep recording in Thai intensive care unit (ICU) settings was established. Keywords: Polysomnography, Atypical sleep, ICU

scholarly journals 2200 The effect of antipyretics and fever on the mortality of mechanically ventilated patients

2018 ◽  
Vol 2 (S1) ◽  
pp. 30-31
Author(s):  
Emily M. Evans ◽  
Rebecca J. Doctor ◽  
Brian M. Fuller ◽  
Richard S. Hotchkiss ◽  
Anne M. Drewry
Keyword(s):  
Mechanical Ventilation ◽  
Clinical Outcomes ◽  
Severity Of Illness ◽  
Primary Analysis ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Before And After ◽  
Patients At Risk ◽  
Forward Stepwise ◽  
Ventilated Patients

OBJECTIVES/SPECIFIC AIMS: (1) To evaluate clinical outcomes in mechanically ventilated patients with and without fever. We hypothesize that, after adjusting for confounding factors such as age and severity of illness: (a) In septic patients, fever will be associated with improved clinical outcomes. (b) In nonseptic patients, fever will be associated with worse clinical outcomes. (2) To examine the relationship between antipyretics and mortality in mechanically ventilated patients at risk for an acute lung injury. We hypothesize that antipyretics will have no effect on clinical outcomes in mechanically ventilated patients with and without sepsis. METHODS/STUDY POPULATION: This is a retrospective study of a “before and after” observational cohort of 1705 patients with acute initiation of mechanical ventilation in the Emergency Department from September 2009 to March 2016. Data were collected retrospectively on the first 72 hours of temperature and antipyretic medication from the EHR. Temperatures measurements were adjusted based on route of measurement. Patients intubated for cardiac arrest or brain injury were excluded from our primary analysis due to the known damage of hyperthermia in these subsets. Cox proportional hazard models and multivariable linear regression analyzed time-to-event and continuous outcomes, respectively. Predetermined patient demographics were entered into each multivariable model using backward and forward stepwise regression. Models were assessed for collinearity and residual plots were used to assure each model met assumptions. RESULTS/ANTICIPATED RESULTS: Antipyretic administration is currently undergoing analysis. Initial temperature results are reported here. In the overall group, presence of hypothermia or fever within 72 hours of intubation compared with normothermia conferred a hazard ratio (HR) of 1.95 (95% CI: 1.48–2.56) and 1.31 (95% CI: 0.97–1.78), respectively. Presence of hypothermia and fever reduced hospital free days by 3.29 (95% CI: 2.15–4.42) and 2.34 (95% CI: 1.21–3.46), respectively. In our subgroup analysis of patients with sepsis, HR for 28-day mortality 2.57 (95% CI: 1.68–3.93) for hypothermia. Fever had no effect on mortality (HR 1.11, 95% CI: 0.694–1.76). Both hypothermia and fever reduced hospital free days by 5.39 (95% CI: 4.33–7.54) and 3.98 (95% CI: 2.46–5.32) days, respectively. DISCUSSION/SIGNIFICANCE OF IMPACT: As expected, both hypothermia and fever increased 28-day mortality and decreased hospital free days. In our sepsis subgroup, hypothermia again resulted in higher mortality and fewer hospital free days, while fever did not have a survival benefit or cost, but reduced hospital free days. Antipyretic administration complicates these findings, as medication may mask fever or exert an effect on survival. Fever may also affect mechanically ventilated septic patients differently than septic patients not on mechanical ventilation. Continued analysis of this data including antipyretic administration, ventilator free days and progression to ARDS will address these questions.

scholarly journals Management of hypercapnia in critically ill mechanically ventilated patients—A narrative review of literature

2020 ◽  
Vol 21 (4) ◽  
pp. 327-333
Author(s):  
Ravindranath Tiruvoipati ◽  
Sachin Gupta ◽  
David Pilcher ◽  
Michael Bailey
Keyword(s):  
Mechanical Ventilation ◽  
Tidal Volume ◽  
Dead Space ◽  
Hypercapnic Acidosis ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Low Tidal Volume ◽  
Volume Ventilation ◽  
Low Volume ◽  
Ventilated Patients

The use of lower tidal volume ventilation was shown to improve survival in mechanically ventilated patients with acute lung injury. In some patients this strategy may cause hypercapnic acidosis. A significant body of recent clinical data suggest that hypercapnic acidosis is associated with adverse clinical outcomes including increased hospital mortality. We aimed to review the available treatment options that may be used to manage acute hypercapnic acidosis that may be seen with low tidal volume ventilation. The databases of MEDLINE and EMBASE were searched. Studies including animals or tissues were excluded. We also searched bibliographic references of relevant studies, irrespective of study design with the intention of finding relevant studies to be included in this review. The possible options to treat hypercapnia included optimising the use of low tidal volume mechanical ventilation to enhance carbon dioxide elimination. These include techniques to reduce dead space ventilation, and physiological dead space, use of buffers, airway pressure release ventilation and prone positon ventilation. In patients where hypercapnic acidosis could not be managed with lung protective mechanical ventilation, extracorporeal techniques may be used. Newer, minimally invasive low volume venovenous extracorporeal devices are currently being investigated for managing hypercapnia associated with low and ultra-low volume mechanical ventilation.

Physical and Occupational Therapy in the ICU

2014 ◽  
Author(s):  
William D Schweickert ◽  
John P Kress
Keyword(s):  
Occupational Therapy ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Respiratory Therapists ◽  
Underlying Illness ◽  
Time Periods ◽  
Icu Delirium ◽  
Therapy Team ◽  
Icu Acquired Weakness ◽  
Ventilated Patients

Mechanically ventilated patients in the ICU are commonly immobilized for prolonged time periods due to factors that include the underlying illness, encephalopathy, or sedation. In this setting, severe ICU-acquired weakness is common and may represent both a cause and consequence of immobilization. Physical and occupational therapy is feasible in ICU patients, even very early during mechanical ventilation. This intervention requires a coordinated effort between physicians, nurses, respiratory therapists, and the physical/occupational therapy team. Early physical and occupational therapy can lead to improved strength and functional status, reduced ventilator days and length of stay, and fewer days of ICU delirium.

scholarly journals Early Critical Care Transthoracic Echocardiography Improves the Mortality of Patients Undergoing Mechanical Ventilation: Observational Data From Two Large Databases.

2020 ◽  
Author(s):  
Xueshu Yu ◽  
Hao Jiang ◽  
Wenjing Chen ◽  
Lingling Pan ◽  
Zhendong Fang ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Critical Care ◽  
Propensity Score ◽  
Hospital Mortality ◽  
Transthoracic Echocardiography ◽  
Favourable Effect ◽  
Research Database ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Ventilated Patients

Abstract Background: Critical care transthoracic echocardiography (TTE) can quickly and accurately assess haemodynamic changes in ICU patients. However, it is not clear whether transthoracic echocardiography improves the prognosis of mechanically ventilated patients. In this study, we hypothesized that early critical care transthoracic echocardiography independently contributes to improvements in mortality in mechanically ventilated patients in the ICU.Methods: This was a retrospective study based on the Medical Information Mart for Intensive Care III (MIMIC-III) database and the eICU Collaborative Research Database (eICU-CRD). Patients undergoing mechanical ventilation for more than 48 hours were selected. The exposure of interest was early TTE. The primary outcome was in-hospital mortality. We used propensity score matching to analyse the association between early TTE and in-hospital mortality and sensitivity analysis, including the inverse probability weighting model and covariate balancing propensity score model, to ensure the robustness of our findings.Results: A total of 8862 patients undergoing mechanical ventilation were enrolled. The adjusted OR showed a favourable effect between the early TTE group and in-hospital mortality [MIMIC: OR 0.77, 95% CI (0.63–0.94), (P=0.01); eICU-CRD: OR 0.78, 95% CI (0.68–0.89), (P<0.01) ]. Furthermore, TTE was also associated with 30-day mortality in the MIMIC database [OR 0.74, 95% CI (0.6-0.92), P=0.01].Conclusions: Early application of critical care transthoracic echocardiography during mechanical ventilation is beneficial for improving in-hospital mortality. Further investigation with prospectively collected data is required to validate this relationship.

scholarly journals Effect of gastric residual volume monitoring on incidence of ventilator-associated pneumonia in mechanically ventilated patients admitted to intensive care unit

2019 ◽  
Vol 36 (1) ◽  
Author(s):  
Elnaz Faramarzi ◽  
Ata Mahmoodpoor ◽  
Hadi Hamishehkar ◽  
Kamran Shadvar ◽  
Afshin Iranpour ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Ventilator Associated Pneumonia ◽  
Residual Volume ◽  
Gastric Residual Volume ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Icu Length Of Stay ◽  
Ventilated Patients

Objectives: The value of gastric residual volume (GRV) monitoring in ventilator-associated pneumonia (VAP) has frequently been questioned in the past years. In this trial, the effect of GRV on the frequency of VAP was evaluated in critically ill patients under mechanical ventilation. Methods: This descriptive study was carried out on 150 adult patients admitted to the intensive care unit over a 14-month period, from October 2015 to January 2017. GRV was measured every three hours, and gastric intolerance was defined as GRV>250 cc. The incidence of vomiting and VAP, GRV, length of mechanical ventilation and ICU stay, APACHE II and SOFA scores, and mortality rate were noted. Results: The mean APACHEII and SOFA scores, ICU length of stay, and duration of mechanical ventilation in the GRV>250ml group were significantly higher than in the GRV≤250 ml group (P<0.05). Also, a significantly higher number of patients in the GRV>250ml group experienced infection (62.3%) and vomiting (71.7%) compared with the GRV≤250 group (P<0.01). The highest OR was observed for SOFA score >15 and APACHE II >30, which increased the risk of GVR>250 ml by 10.09 (1.01-99.97) and 8.78 (1.49-51.58), respectively. Moreover, the increase in GVR was found to be higher in the non-survivor than in the survivor group. Conclusion: Increased GRV did not result in increased rates of VAP, ICU length of stay, and mortality. Therefore, the routine measurement of GRV as an important element of the VAP prevention bundle is not recommended in critically ill patients. How to cite this: Faramarzi E, Mahmoodpoor A, Hamishehkar H, Shadvar K, Iranpour A, Sabzevari T, et al. Effect of gastric residual volume monitoring on incidence of ventilator-associated pneumonia in mechanically ventilated patients admitted to intensive care unit. Pak J Med Sci. 2020;36(1):---------. doi: https://doi.org/10.12669/pjms.36.1.1321 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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