Skip to main content

Impact of mechanical ventilation on the functional status in patients admitted to the intensive care unit

Introduction

Many ICU survivors report limitations in physical function that, despite showing slow improvement over time, may be long-lasting. As a complication of critical illness, weakness frequently slows and even dominates the course of recovery from critical illness. Patients requiring mechanical ventilation (MV) often have substantial weakness of the respiratory and limb muscles that further impairs their functional status and health-related quality of life.

Objective

The aim of this study was to evaluate the impact of the use of MV on the functional status.

Methods

This is an observational, retrospective and analytical study that included patients aged >18 years who were discharged from ICUs from July 2010 to December 2010. We excluded patients transferred to another hospital and who had not been evaluated by the physiotherapy team at the time of discharge. Functionality was assessed at discharge from the ICU and at discharge from the hospital through the Functional Independence Measure (FIM) scale. The following variables were considered: age, gender, APACHE II, length of ICU, length of stay, length of MV and FIM. We used the normality tests, Mann-Whitney test and Wilcoxon test.

Results

The sample consisted of 158 patients, 51.9% female, mean age 62.5 ± 19.8 years. Of these patients, 30.6% used mechanical ventilation in the ICU. The length of ICU and hospital stay was higher among patients who received MV (length of ICU: 28.3 ± 24.2 days vs. 9.58 ± 16.5 days, P = 0.001; length of stay: 37.6 ± 27.4 days vs. 18.9 ± 28.6 days, P = 0.001). APACHE II was also higher in this group (13.9 ± 8.3 vs. 10.8 ± 6.57, P = 0.02) (Table 1). The functional status was lower in the group undergoing MV at discharge from the ICU (65.3 ± 37.5 vs. 89.2 ± 37.6, P = 0.001) and at discharge from hospital (74.6 ± 41.9 vs. 94.3 ± 37.7, P = 0.008) (Figure 1).

Table 1 Characteristics of the subjects
Figure 1
figure1

Values for FIM in patients on MV. *P < 0.01.

Conclusions

In this population we observed that patients submitted to MV have a lower functional status, and higher APACHE II, length of ICU and length of stay.

References

  1. 1.

    Chiang L, et al.: Effects of physical training on functional status in patients with prolonged mechanical ventilation. Phys Ther 2006, 86: 1271-1281. 10.2522/ptj.20050036

    Article  PubMed  Google Scholar 

  2. 2.

    Griffiths RD, et al.: Intensive care unit-acquired weakness. Crit Care Med 2010, 38: 1-9. 10.1097/CCM.0b013e3181ccb591

    Article  Google Scholar 

  3. 3.

    Desai SV, Law TJ, Needham DM: Long-term complications of critical care. Crit Care Med 2011, 39: 371-379. 10.1097/CCM.0b013e3181fd66e5

    Article  PubMed  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to JA Araújo Neto.

Rights and permissions

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and Permissions

About this article

Cite this article

Araújo Neto, J., Bomfim, R., Lima, F. et al. Impact of mechanical ventilation on the functional status in patients admitted to the intensive care unit. Crit Care 15, P55 (2011). https://doi.org/10.1186/cc10203

Download citation

Keywords

  • Intensive Care Unit
  • Hospital Stay
  • Mechanical Ventilation
  • Emergency Medicine
  • Functional Status