Accuracy of height estimation and tidal volume ... - Semantic Scholar
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Accuracy of height estimation and tidal volume ... - Semantic Scholar
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L’her et al. Ann. Intensive Care (2016) 6:55 DOI 10.1186/s13613-016-0154-4
Open Access
RESEARCH
Accuracy of height estimation and tidal volume setting using anthropometric formulas in an ICU Caucasian population Erwan L’her1,2*, Jérôme Martin‑Babau1 and François Lellouche3
Abstract Background: Knowledge of patients’ height is essential for daily practice in the intensive care unit. However, actual height measurements are unavailable on a daily routine in the ICU and measured height in the supine position and/or visual estimates may lack consistency. Clinicians do need simple and rapid methods to estimate the patients’ height, especially in short height and/or obese patients. The objectives of the study were to evaluate several anthropometric formulas for height estimation on healthy volunteers and to test whether several of these estimates will help tidal volume setting in ICU patients. Methods: This was a prospective, observational study in a medical intensive care unit of a university hospital. During the first phase of the study, eight limb measurements were performed on 60 healthy volunteers and 18 height esti‑ mation formulas were tested. During the second phase, four height estimates were performed on 60 consecutive ICU patients under mechanical ventilation. Results: In the 60 healthy volunteers, actual height was well correlated with the gold standard, measured height in the erect position. Correlation was low between actual and calculated height, using the hand’s length and width, the index, or the foot equations. The Chumlea method and its simplified version, performed in the supine position, provided adequate estimates. In the 60 ICU patients, calculated height using the simplified Chumlea method was well correlated with measured height (r = 0.78; ∂ 0.75 and bias level
