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Table 3 Results of statistical testing comparing MAP blood pressure assessment methods according to surgical position

From: Non-invasive continuous blood pressure monitoring (ClearSight™ system) during shoulder surgery in the beach chair position: a prospective self-controlled study

Surgical position

NIBP to CS-BP

IBP to CS-BP

IBP to NIBP

Supine

P < 0.001

N = 116

P = 0.245

N = 40

P = 0.034

N = 40

Beach chair

P = 0.348

N = 110

P = 0.344

N = 59

P = 0.007

N = 58

Combined (supine and beach chair)

P < 0.001

N = 226

P = 0.058

N = 99

P = 0.429

N = 98

  1. MAP Mean arterial pressure, IBP Invasive blood pressure, NIBP Non-invasive blood pressure, CS-BP ClearSight™ blood pressure. P-values calculated using weighted one-sample t-test
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BMC Anesthesiology

ISSN: 1471-2253

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