Articles: general-anesthesia.
-
Editorial Biography Historical Article
Seventy-five years since the birth of the Liverpool anaesthetic technique.
-
Anesthesia and analgesia · Feb 2021
Observational StudyDo Elderly Patients With Diastolic Dysfunction Require Higher Doses of Norepinephrine During General Anesthesia for Noncardiac Surgeries? A Prospective Observational Study.
Diastolic dysfunction is a risk factor for postoperative major cardiovascular events. During anesthesia, patients with diastolic dysfunction might experience impaired hemodynamic function and worsening of diastolic function, which in turn, might be associated with a higher incidence of postoperative complications.We aimed to investigate whether patients with diastolic dysfunction require higher doses of norepinephrine during general anesthesia. Furthermore, we aimed to examine the association between the grade of diastolic dysfunction and the E/e' ratio during anesthesia. A high E/e' ratio corresponds to elevated filling pressures and is an important measure of impaired diastolic function. ⋯ We did not find evidence for an association between diastolic dysfunction and impaired hemodynamic function, as expressed by high vasopressor support during anesthesia. Additionally, our findings suggest that diastolic function, as expressed by the E/e' ratio, does not worsen during anesthesia.
-
J. Cardiothorac. Vasc. Anesth. · Feb 2021
The Effect of Anesthesia Type on Outcomes in Patients Undergoing Transcatheter Aortic Valve Replacement.
To assess postoperative outcomes in patients undergoing transcatheter aortic valve replacement (TAVR) either under general anesthesia (GA) or monitored anesthesia care (MAC) as the primary anesthetic. ⋯ Patients undergoing TAVR under MAC may have similar 30-day mortality and complications, but shorter hospital length of stay, than patients undergoing TAVR under GA.
-
Fresh gas decoupling is a feature of the modern anesthesia workstation, where the fresh gas flow (FGF) is diverted into the reservoir bag and is not added to the delivered tidal volume, which thus remains constant. The present study aimed to investigate the entraining of the atmospheric air into the anesthesia breathing circuit in case the reservoir bag was disconnected. ⋯ During the disconnection of the anesthesia reservoir bag, the process of pharmacokinetics takes place faster compared to the wash-in and wash-out pharmacokinetic properties in the circle breathing system. The time constant was affected by the FGF rate, as well as the gradient of anesthetic gases between the anesthesia circle system and atmospheric air.