Articles: anesthetics.
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Randomized Controlled Trial Multicenter Study
Anesthesia and Circulating Tumor Cells in Primary Breast Cancer Patients: A Randomized Controlled Trial.
Type of maintenance anesthesia, whether propofol or sevoflurane, had no effect on circulating tumor cell count after primary breast cancer surgery.
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Anesthesia and analgesia · Sep 2020
Randomized Controlled Trial Multicenter StudyEffect of Midazolam in Addition to Propofol and Opiate Sedation on the Quality of Recovery After Colonoscopy: A Randomized Clinical Trial.
There is a concern that midazolam, when used as a component of sedation for colonoscopy, may impair cognition and prolong recovery. We aimed to identify whether midazolam produced short- and longer-term effects on multiple dimensions of recovery including cognition. ⋯ The addition of midazolam 0.04 mg·kg as adjunct to propofol and opiate sedation for elective colonoscopy did not show evidence of any significant differences in recovery in the cognitive domain of the PostopQRS, overall quality of recovery as measured by the PostopQRS, or emergence and hospital discharge times. The use of midazolam should be determined by the anesthesiologist.
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Multicenter Study Observational Study
End-tidal to Arterial Gradients and Alveolar Deadspace for Anesthetic Agents.
According to the "three-compartment" model of ventilation-perfusion ((Equation is included in full-text article.)) inequality, increased (Equation is included in full-text article.)scatter in the lung under general anesthesia is reflected in increased alveolar deadspace fraction (VDA/VA) customarily measured using end-tidal to arterial (A-a) partial pressure gradients for carbon dioxide. A-a gradients for anesthetic agents such as isoflurane are also significant but have been shown to be inconsistent with those for carbon dioxide under the three-compartment theory. The authors hypothesized that three-compartment VDA/VA calculated using partial pressures of four inhalational agents (VDA/VAG) is different from that calculated using carbon dioxide (VDA/VACO2) measurements, but similar to predictions from multicompartment models of physiologically realistic "log-normal" (Equation is included in full-text article.)distributions. ⋯ Alveolar deadspace for anesthetic agents is much larger than for carbon dioxide and related to blood solubility. Unlike the three-compartment model, multicompartment (Equation is included in full-text article.)scatter models explain this from physiologically realistic gas uptake distributions, but suggest a residual factor other than solubility, potentially diffusion limitation, contributes to deadspace.
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Acta Anaesthesiol Scand · Sep 2020
Multicenter StudySurvival after primary breast cancer surgery following propofol or sevoflurane general anesthesia - aretrospective, multicenter, database analysis of 6,305 Swedish patients.
Retrospective studies indicate that the choice of anesthetic can affect long-term cancer survival. Propofol seems to have an advantage over sevoflurane. However, this is questioned for breast cancer. We gathered a large cohort of breast cancer surgery patients from seven Swedish hospitals and hypothesized that general anesthesia with propofol would be superior to sevoflurane anesthesia regarding long-term breast cancer survival. ⋯ It seems that propofol may have a survival advantage compared with sevoflurane among breast cancer patients, but the inherent weaknesses of retrospective analyses were made apparent.
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Paediatric anaesthesia · Jun 2020
Multicenter StudyPerioperative aspiration events in children: a report from the Wake-Up Safe Collaborative.
Perioperative aspiration, while rare, is a serious complication of anesthetic care. Consequences of aspiration may include physical obstruction, wheezing, and pneumonia, resulting in mild to severe hypoxemia and even death. ⋯ Although infrequent, death was reported as a consequence of perioperative aspiration in two patients. The frequency with which NPO violations were identified as a potential cause of aspiration highlights the struggles institutions face with adherence to NPO regulations, as these cases may be preventable. Furthermore, preventive measures may be needed to address other common causes of aspiration, such as gastrointestinal comorbid conditions.