Continuous versus intermittent noninvasive blood pressure measurement in patients undergoing surgery in the beach-chair position
The influence of the continuous versus intermittent noninvasive blood pressure measurement on hemodynamic stability in patients undergoing surgery in the beach-chair position
Dpt. of Anesthesia and Intensive Care of the Faculty of Medicine Plzen - Charles University Prague
80 participants
Oct 14, 2012
Interventional
Conditions
Summary
Aim of the study is to evaluate the safety and efficacy of the use of a completly noninvasive device enabling the continuous measurement of blood pressure in patients with increased risk of cerebral malperfusion due to position changes (beach-chair position) under general anesthesia in compariosn to the standard anesthesia care. As a measure of safety/eficacy the proportion of time outside the near-normal ranges of blood pressures and hypotensive periods will be used in combination with assesment of mental abilities derrangements in the early postoperative course and potential postoperative morbidity.
Eligibility
Inclusion Criteria3
- Patients undergoing surgery in beach-chair position (throid gland surgery, shoulder surgery/arthroscopy)
- General anesthesia
- Given and signed informed consent
Exclusion Criteria1
- obvious perfusion abnormality on the side of measurement, vascular implants or known neuronal / neuromuscular disease on the side of measurement, peripheral edema
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Interventions
Maintanace of the near-normal pressure values throughout the surgery in beach-chair position (using fluids and vasopressors) with continuous noninvasive measurement of blood pressure obtained by the CNAP device (volume clamp method).
Locations(1)
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ACTRN12612001058864