Clinical Trials Directory

Desflurane or Propofol Anesthesia in Elderly Obese Patients Undergoing Total Knee Replacement: A Pilot Assessment of Short-term and Long-term Differences in Outcome

You are invited to participate in a research study assessing your mental status in the first days after your surgery and how you will be doing in the 2 years following the surgery. The investigators hope to learn more about the incidence of postoperative confusion and a possible relation with 2 anesthesia techniques that are routinely used. The first one is an anesthesia technique that uses the inhaled anesthetic gas desflurane and the second one is an anesthesia technique that uses the anesthetic propofol administered by infusion in a vein. The investigators are also looking to see if there is a relationship between anesthesia technique and cardiovascular outcomes. You were selected as a possible participant in this study because at your age this phenomenon appears to have a greater incidence.

Stanford is now accepting new patients for this trial. Please contact Pedro Tanaka at 650-723-6412 for more information.



  • drug : Desflurane
  • drug : propofol

Phase: Phase 4


Ages Eligible For Study:

65 Years - N/A

Inclusion Criteria

- Age > 65 years old - Body mass index > 30 kg/m2 - Undergoing primary total knee arthroplasty surgery - American society of anesthesiology classification II-III

External Links

Contact information

Primary Contact:

Pedro Tanaka 650-723-6412

Stanford University School of Medicine 300 Pasteur Drive Stanford, CA 94305

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