Key result
Study evaluating lower esophageal contractility for anesthetic depth during cardiopulmonary bypass reports no results.
Why the study?
Little is known about depth of anesthesia during hypothermic cardiopulmonary bypass with variable surgical stimuli in open heart surgery patients.
Does continuous monitoring of lower esophageal contractility (LEC) compare favorably with other parameters (MAP, EEG, SEP) to assess depth of anesthesia in patients undergoing hypothermic cardiopulmonary bypass?
Observational
Does continuous monitoring of lower esophageal contractility (LEC) compare favorably with other parameters (MAP, EEG, SEP) to assess depth of anesthesia in patients undergoing hypothermic cardiopulmonary bypass?
The study outlines a protocol to evaluate if lower esophageal contractility can serve as a reliable marker for depth of anesthesia during hypothermic cardiopulmonary bypass compared to traditional parameters.
Despite recent advances in the anesthetic management of patients undergoing open heart surgery (OHS), little is known concerning depth of anesthesia in the presence of variable surgical stimuli. The present study was designed to evaluate anesthetic depth during hypothermic cardiopulmonary bypass (CPB) utilizing continuous monitoring of lower esophageal contractility (LEC). Tertiary esophageal contractions are stress related, and their presence during cardiopulmonary bypass may indicate inadequate depth of anesthesia. The responses to inappropriate depth of anesthesia may correlate with increased postoperative morbidity or awareness. The present study was designed to evaluate the depth of anesthesia during hypothermic cardiopulmonary bypass and compare lower esophageal contractility (LEC) with other parameters available to assess depth of anesthesia: mean arterial pressure/perfusion flow/temperature and electroencephalogram (EEG) and somatosensory evoked potential (SEP) measurements.
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Silvay et al. (1988) conducted an observational in Open heart surgery. Continuous monitoring of lower esophageal contractility (LEC) vs. Mean arterial pressure, perfusion flow, temperature, EEG, and SEP measurements was evaluated on Depth of anesthesia. The study was designed to evaluate anesthetic depth during hypothermic cardiopulmonary bypass using lower esophageal contractility compared to other parameters, but no results are reported.
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