Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Flow-related techniques for preoperative goal-directed fluid optimization.

M Bundgaard-Nielsen1, B Ruhnau, N H Secher

  • 1Section of Surgical Pathophysiology, Rigshospitalet, University of Copenhagen Blegdamsvej 9, DK-2100 Copenhagen, Denmark. morten.bundgaard-nielsen@rh.hosp.dk

British Journal of Anaesthesia
|October 27, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Transversus abdominis plane block or subcutaneous wound infiltration after open radical prostatectomy: a randomized study.

Acta anaesthesiologica Scandinavica·2013
Same author

Postoperative morbidity after fast-track laparoscopic resection of rectal cancer.

Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland·2011
Same author

A nationwide study on readmission, morbidity, and mortality after umbilical and epigastric hernia repair.

Hernia : the journal of hernias and abdominal wall surgery·2011
Same author

Neurophysiological characterization of persistent pain after laparoscopic inguinal hernia repair.

Hernia : the journal of hernias and abdominal wall surgery·2011
Same author

International guidelines for prevention and management of post-operative chronic pain following inguinal hernia surgery.

Hernia : the journal of hernias and abdominal wall surgery·2011
Same author

Fast-track surgery for bilateral total knee replacement.

The Journal of bone and joint surgery. British volume·2011

Perioperative stroke volume (SV) optimization using esophageal Doppler (OD) is superior to other methods like Modelflow, central venous oxygenation, and NIRS for improving patient outcomes. This approach ensures better goal-directed therapy before surgery.

Area of Science:

  • Anesthesiology
  • Critical Care Medicine
  • Cardiovascular Physiology

Background:

  • Goal-directed therapy (GDT) aims to improve postoperative outcomes by maximizing cardiac stroke volume (SV) with fluid challenges.
  • Esophageal Doppler (OD) is a common GDT technique, but alternative flow-related methods may be simpler for clinical use.
  • Investigating OD for preoperative SV maximization and comparing it with other monitoring techniques is crucial for clinical practice.

Purpose of the Study:

  • To utilize esophageal Doppler (OD) for preoperative stroke volume (SV) maximization.
  • To compare OD-determined SV optimization with Modelflow-derived SV, corrected flow time (FTc), central venous oxygenation (Svo2), and NIRS-assessed oxygenation.

Main Methods:

  • Twelve patients undergoing radical prostatectomy were included in the study.

Related Experiment Videos

  • Anesthesia was administered, followed by SV optimization using OD with incremental colloid fluid challenges (200 ml).
  • Simultaneous measurements of Modelflow SV, FTc, Svo2, and NIRS (muscle and cerebral oxygenation) were recorded for comparison.

    • Main Results:

    • SV optimization via OD was achieved with a mean of 483 ml of colloid (range 400-800 ml).
    • Modelflow and Svo2 guided fluid administration volumes differed from OD in 10 and 11 patients, respectively.
    • Changes in FTc and NIRS measurements showed inconsistency with OD-guided SV optimization.

    Conclusions:

    • Preoperative SV optimization guided by esophageal Doppler (OD) is the preferred method for goal-directed therapy.
    • OD demonstrates superiority over Modelflow SV, FTc, NIRS, and Svo2 in guiding fluid management.
    • Further outcome studies are needed for alternative monitoring techniques before widespread adoption.