Articles: monitoring.
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Comment Randomized Controlled Trial Clinical Trial
Pulse oximetry in the postoperative care of cardiac surgical patients. A randomized controlled trail.
To demonstrate the utility of pulse oximetry in detecting clinically unapparent episodes of arterial desaturation in postoperative cardiac surgical patients and to evaluate the effect of pulse oximetry on ordering arterial blood gas analyses. ⋯ Pulse oximetry improves patient safety through the detection of clinically unapparent episodes of desaturation and can allow a reduction in the number of blood gas analyses utilized without adverse effects to the patient. This may allow a potential cost savings to the patient.
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Ugeskrift for laeger · Sep 1992
Randomized Controlled Trial Clinical Trial[Does peroperative monitoring with pulse oximetry reduce the occurrence of hypoxemia?].
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Randomized Controlled Trial Comparative Study Clinical Trial
Clinical comparison of two- and three-wavelength systems for continuous measurement of venous oxygen saturation.
To evaluate clinically the accuracy of continuous SvO2 systems to reflect reference SvO2 values over a 24-hour period. ⋯ The results of this clinical study confirmed a previous study in dogs, showing that SvO2 is measured more accurately by the three-wavelength continuous monitoring system.
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J. Cardiothorac. Vasc. Anesth. · Feb 1992
Randomized Controlled Trial Clinical TrialIncidence of sore throat and patient complaints after intraoperative transesophageal echocardiography during cardiac surgery.
To evaluate the incidence of postoperative side effects and patient complaints following transesophageal echocardiography (TEE), 57 patients were interviewed by questionnaire and examined by pharyngeal inspection, preoperatively. The patients were randomized to undergo surgery with or without intraoperative TEE, and a second interview and examination were performed in 48 patients on the second postoperative day using a double-blind protocol. Twenty-four of the patients were investigated by TEE over a period of 5.4 +/- 2.3 hours and 24 had surgery without TEE. ⋯ No differences between the groups were found regarding the findings on pharyngeal inspection and no major complication attributable to the use of TEE occurred. A sore throat with painful swallowing was not a great problem for the patients in the present study; this indicates that endotracheal intubation rather than TEE caused the minor complaints. It is concluded that intraoperative TEE can be used without harmful postoperative pharyngeal side effects.
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Randomized Controlled Trial Comparative Study Clinical Trial
[The accuracy of 4 different oximeters for continuous monitoring of mixed venous oxygen saturation during abdominal aortic surgery].
Several systems for mixed-venous oximetry are now available. There are one three-wave-length system (Abbott) and three two-wave-length systems with (Spectramed) and without automatic correction for hemoglobin or hematocrit (Edwards). The purpose of this prospective randomized study was to compare the different systems and to examine the accuracy of continuous mixed-venous oximetry during abdominal aortic surgery. ⋯ Data sets were obtained at eight predetermined times. Hemoglobin was kept constant at +/- 1 g.dl-1. Continuous oximetry in comparison to in-vitro measurements yielded a correlation coefficient of r = 0.873 (P less than 0.0001) and a value of bias and precision (b +/- p) of -0.9 +/- 2.6% for the SAT-1, r = 0.815 (P less than or equal to 0.0001) and b +/- p = -2.2 +/- 2.5% for the SAT-2, r = 0.901 (P less than or equal to 0.0001) and b +/- p = 0.35 +/- 2.5% for the Hemopro2, and r = 0.920 (P less than or equal to 0.0001) and b +/- p = 0.1 +/- 1.8% for the Oximetrix 3, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)