Blood pressure measurement in obese patients: non-invasive proximal forearm versus direct intra-arterial measurements
Southern African Journal of Anaesthesia and Analgesia
| Field | Value | |
| Title | Blood pressure measurement in obese patients: non-invasive proximal forearm versus direct intra-arterial measurements | |
| Creator | Verkhovsky, A. Smit, M. Levin, A. Coetzee, J.F. | |
| Description | Background: In obesity, accurate perioperative blood pressure measurement using upper arm, non-invasive blood pressure (NIBP) is technically challenging. Proximal forearm NIBP may be an acceptable substitute. Mean arterial blood pressures (MAP) estimated by proximal forearm NIBP were compared with direct intra-arterial measurements. It was hypothesised that the measurement techniques would be interchangeable if between-technique MAP differed ≤ 20% and MAP ratios were 1.2 and 0.8. Method: A total of 30 adults with body mass index ≥ 30 kg/m2 in whom perioperative intra-arterial blood pressure measurement was considered mandatory were enrolled. MAP measurements using the two techniques were obtained at three random intervals in each patient. Bland–Altman analyses were employed. Results: Forearm mean NIBP MAP overestimated mean intra-arterial MAP by 2.2 (SD 8.1; range from 23.8 to –19.4 mmHg; p = 0.011, 95% CI 3.9 to 0.5). However, Bland–Altman analyses revealed a wide dispersion with several MAP differences and MAP ratios exceeding the pre-specified bounds for interchangeability. Conclusion: Forearm NIBP could not be considered interchangeable with direct intra-arterial MAP measurements in obese patients. | |
| Publisher | AOSIS | |
| Date | 2018-06-30 | |
| Identifier | 10.1080/22201181.2018.1461323 | |
| Source | Southern African Journal of Anaesthesia and Analgesia; Vol 24, No 3 (2018); 20-24 2220-1173 2220-1181 | |
| Language | eng | |
| Relation |
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https://sajaa.co.za/index.php/sajaa/article/view/1107/1098
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