Anesthesia and analgesia
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Anesthesia and analgesia · Jul 2015
Comparative StudyThe Influence of Acute Pulmonary Hypertension on Cardiac Output Measurements: Calibrated Pulse Contour Analysis, Transpulmonary and Pulmonary Artery Thermodilution Against a Modified Fick Method in an Animal Model.
In critically ill patients with significant pulmonary hypertension (PH), close perioperative cardiovascular monitoring is mandatory, considering the increased morbidity and mortality in this patient group. Although the pulmonary artery catheter is still the standard for the diagnosis of PH, its use to monitor cardiac output (CO) in patients with PH is decreasing as a result of increased morbidity and possible influence of tricuspid regurgitation on the measurements. However, continuous CO measurement methods have never been evaluated under PH regarding their agreement and trending ability. In this study, we evaluated the influence of acute PH and different CO states on transpulmonary thermodilution (TPTD) and calibrated pulse contour analysis (PiCCO; both assessed with PiCCO plus™), intermittent pulmonary artery thermodilution (PATD), and continuous thermodilution (CCO) compared with a modified Fick method (FICK) in an animal model. ⋯ TPTD compared with FICK was able to track all changes induced during the study period, including those by PH. It yielded better agreement than PATD both compared with FICK. PiCCO and CCO were not mapping all changes correctly, and when used clinically in unstable patients, regular controls with intermittent techniques are required. Acute pharmacologically induced PH did influence the difference between FICK and PiCCO.
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Anesthesia and analgesia · Jul 2015
Randomized Controlled Trial Comparative StudyA Comparative Evaluation of Nebulized Dexmedetomidine, Nebulized Ketamine, and Their Combination as Premedication for Outpatient Pediatric Dental Surgery.
Nebulized ketamine with dexmedetomidine is suitable and effective for pediatric premedication before outpatient dental surgery.
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Anesthesia and analgesia · Jul 2015
Controlled Clinical TrialThe ED90 of Prophylactic Oxytocin Infusion After Delivery of the Placenta During Cesarean Delivery in Laboring Compared with Nonlaboring Women: An Up-Down Sequential Allocation Dose-Response Study.
Labouring women already exposed to oxytocin require a higher dose of oxytocin after cesarean section than non-labouring women to achieve the same uterotonic effect.
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The Fontan operation places the systemic and pulmonary circulations in series, driven by a single ventricular chamber. It has become the treatment strategy of choice for palliating single-ventricle congenital heart disease. This anatomy engenders profound changes in physiology, affecting the cardiovascular and respiratory systems with direct implications for anesthetic and intensive care. The physical basis of these changes and their sequelae are reviewed.
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Anesthesia and analgesia · Jul 2015
Observational StudyThe Effect of Adding Functional Classification to ASA Status for Predicting 30-Day Mortality.
The functional capacity to perform the activities of daily living is identified as an independent predictor of perioperative mortality but is not formally incorporated in the American Society of Anesthesiologists (ASA) classification. Our primary objective was to assess whether functional capacity is an independent predictor of 30-day and long-term mortality in a general population and, if so, to define how it may formally be incorporated into the routine preoperative ASA classification assessment. ⋯ Functional capacity was an independent predictor of mortality within each ASA class, indicating that it should be considered for incorporation into the routine preoperative evaluation. Functional dependence may be an indication for increasing a patient's ASA class by 1 class-point to better reflect his or her perioperative risk, but prospective validation of these findings is recommended, as this is a preliminary study.