International Research Series
Physical restraint use in intensive care units across Europe: The PRICE study

https://doi.org/10.1016/j.iccn.2010.08.003Get rights and content

Summary

The use of physical restraint has been linked to delirium in ICU patients and a range of physical and psychological outcomes in non-ICU patients. However, the extent of restraint practice in ICUs is largely unknown. This study was designed to examine physical restraint practices across European ICUs. A prospective point prevalence survey was conducted in adult ICUs across European countries to examine: physical and chemical restraint use during the weekend and weekdays, reasons for physical restraint use, timing of restraint use, type of restraint used and availability of restraint policies. Thirty-four general (adult) ICUs in nine countries participated in the study providing information on 669 patients with details of physical and chemical restraint use in 566 patients. Prevalence of physical restraint use in individual units ranged from 0 to 100% of patients. Thirty-three per cent of patients were physically restrained; those that were restrained were more likely to be ventilated (χ2 = 87.56, p < 0.001), sedated (χ2 34.66, p < 0.001), managed in a larger unit (χ2 = 10.741, p = .005) and managed in a unit with a lower daytime nurse:patient ratio (χ2 = 17.17, p = 0.001). Larger units were more likely to use commercial wrist restraints and smaller units were more likely to have a restraint policy, although these results did not reach significance. As an initial exploration, this study provides evidence of the range of restraint practice across Units in Europe. Variation in the number of units per country limits generalization of findings. However, further examination is needed to determine whether there is a causal element to these relationships. Attention should be paid to developing evidence based guidelines to underpin restraint practices.

Introduction

International studies are undertaken for a number of reasons, including to increase sample size and compare practices or outcomes in different countries (Endacott et al., 2010). They are also, however, fraught with difficulty. This paper has two purposes: firstly, to present findings from a point prevalence survey examining physical restraint practices in intensive care units across Europe and, secondly, to discuss the findings in the context of the methodological limitations.

Section snippets

Background to the study

Restraint is most commonly used in intensive care units (ICUs) to protect the patient from the risks associated with untimely patient-initiated removal of indwelling devices such as endotracheal tubes. Both chemical and physical restraint are used although the prevalence and factors associated with preference and use of each are unknown in Europe. Anecdotally, the practice of using physical restraints in intensive care varies widely, with differing views worldwide about the acceptability of

Study design and methods

A point prevalence survey technique was used in thirty four general ICUs in nine countries. The number of beds in the units ranged from 6 to 24 beds. All patients in the unit on the days of the survey were included. Exclusion criteria were applied at unit, rather than patient, level. Specialist neurosurgery units were excluded from the study, in recognition of the specific challenges to patient management posed by this particular group of patients. Paediatric units were also excluded from the

Results

Thirty-four adult general ICUs in nine countries participated in the study providing data regarding 669 patients with details of physical and chemical restraint in 566 patients. Just over a third (n = 219/566, 39%) were physically restrained; however, the extent of physical restraint varied across units (see Table 1). On the dates of the survey, no patients in the four UK Units or two Portuguese units were restrained and all patients in the single Italian unit were restrained.

Use of physical

Discussion

Previous studies have found similar variation in physical restraint use. In a study of 17 ICUs in the United States (US), Minnick et al. (1998) found that 24% of patients were restrained, although practice did vary across different types of ICU; a study comparing physical restraint practice in 50 patients in one unit in the US with that in 50 patients in one unit in Norway found no physical restraint use in Norway compared to 39% use in the US (Martin and Mathisen, 2005). However, there were

Conclusions

Whilst observational surveys of this nature have their limitations, particularly when undertaken in a number of different countries, they do have some utility in demonstrating variation in practices. This study demonstrated that less than forty per cent of ICU patients were physically restrained on the days of the survey; those that were restrained were more likely to be ventilated, sedated and managed in a unit with a lower daytime nurse:patient ratio. Larger units were more likely to use

Acknowledgements

The research project study was supported by the European Critical Care Research Network of the European Society of Intensive Care Medicine.

References (23)

  • R. Endacott et al.

    Challenges and rewards in multi-national research (guest editorial)

    Intensive and Critical Care Nursing

    (2010)
  • K. Bray et al.

    British Association of Critical Care Nurses position statement on the use of restraint in adult critical care units

    Nurs Crit Care

    (2004)
  • L.-Y. Chang et al.

    Influence of physical restraint on unplanned extubation of adult intensive care patients: a case-control study

    Am J Crit Care

    (2008)
  • K. Curry et al.

    Characteristics associated with unplanned extubations in a surgical intensive care unit

    Am J Crit Care

    (2008)
  • A. Dube et al.

    Accidental strangulation from vest restraints

    JAMA

    (1986)
  • B.K. Gehlback et al.

    Sedation in the intensive care unit

    Curr Opin Crit Care

    (2002)
  • C. Hurlock-Chorostecki et al.

    Knot-So-Fast: a learning plan to minimize patient restraint in critical care

    Dynamics.

    (2006)
  • C. Jones et al.

    Memory, delusions and the development of acute posttraumatic stress disorder-related symptoms after intensive care

    Crit Care Med

    (2001)
  • C. Jones et al.

    Precipitants of post-traumatic stress disorder following intensive care: a hypothesis generating study of diversity in care

    Intensive Care Med

    (2007)
  • C. Kielb et al.

    Can minimal patient restraint be safely implemented in the intensive care unit?

    Dynamics

    (2005)
  • G.A. Maccioli et al.

    Clinical practice guidelines for the maintenance of patient physical safety in the intensive care unit: use of restraining therapies. American College of Critical Care Medicine Task Force 2001–2002

    Crit Care Med

    (2003)
  • Cited by (150)

    View all citing articles on Scopus
    1

    Postal address: Faculty of Health, Centre Court, Drake Circus, Plymouth, PL4 8AA.

    View full text