caa a22 4500 605510393 CHVBK 20210128100645.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10877-014-9645-8 doi (NATIONALLICENCE)springer-10.1007/s10877-014-9645-8 Continuous measurement of cardiac output with the electrical velocimetry method in patients under spinal anesthesia for cesarean delivery [Elektronische Daten] [Yanhong Liu, May Pian-Smith, Lisa Leffert, Rebecca Minehart, Andrea Torri, Charles Coté, Robert Kacmarek, Yandong Jiang] In this study, we aimed to continuously measure cardiac output (CO) with the electrical velocimetry (EV) method and characterize the hemodynamic profile of patients undergoing spinal anesthesia for elective cesarean delivery (CD), and to discuss the potential benefit of using real time CO monitoring to guide patient management. Forty-two patients scheduled for elective CD under spinal anesthesia were enrolled in this observational study. A non-invasive CO monitor incorporating the electrical velocimetry algorithm, ICON® (Cardiotronic®, La Jolla, California, USA), was used to measure CO and stroke volume (SV) continuously. Peripheral venous pressure was measured intermittently at pre-defined time points. Systemic vascular resistance was calculated retrospectively after completion of the study. Hemodynamic changes at pre-defined time points and caused by phenylephrine administration were analyzed. Hypotension (MAP reduction more than 20% from baseline values) occurred in 71.1% of patients after spinal anesthesia, while the coinstantaneous CO was increased ≥20% from baseline in the majority of patients (76.3%) at the same time. Significant increase in CO took place at 3-2min before the administration of phenylephrine bolus. Treatment of hypotension with phenylephrine was associated with significant decrease in CO. Continuous CO monitoring with EV enables clinicians to determine CO and SV changes prior to onset of hypotension and to better understand patients' hemodynamics. It is an important addition to the current monitoring. The benefit of routinely using this technique remains to be determined in term of the patient outcomes. Springer Science+Business Media New York, 2014 Cardiac output nationallicence Spinal anesthesia nationallicence Electrical velocimetry nationallicence Obstetric nationallicence Cesarean delivery nationallicence Liu Yanhong Anesthesia and Operation Center, Chinese PLA General Hospital, Beijing, China aut Pian-Smith May Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Leffert Lisa Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Minehart Rebecca Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Torri Andrea Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Coté Charles Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Kacmarek Robert Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Jiang Yandong Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut Journal of Clinical Monitoring and Computing Springer Netherlands 29/5(2015-10-01), 627-634 1387-1307 29:5<627 2015 29 10877 https://doi.org/10.1007/s10877-014-9645-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10877-014-9645-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Yanhong Anesthesia and Operation Center, Chinese PLA General Hospital, Beijing, China aut NATIONALLICENCE 700 1- Pian-Smith May Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Leffert Lisa Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Minehart Rebecca Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Torri Andrea Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Coté Charles Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Kacmarek Robert Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Jiang Yandong Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Jackson 422, 02114, Boston, MA, USA aut NATIONALLICENCE 773 0- Journal of Clinical Monitoring and Computing Springer Netherlands 29/5(2015-10-01), 627-634 1387-1307 29:5<627 2015 29 10877