Osteoarthritis
Conditions
Interventions
1)HFVI control group
The HFVI is attached, and the HFVI value is measured. The remifentanil dosage is adjusted based on the HFVI value every 5 minutes from the start of surgery to the end of surgery a
Sponsors
Morimatsu Hiroshi
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.Patients scheduled to undergo unilateral knee or hip replacement under general anesthesia 2.Patients who are 18 years of age or older at the time of consent (regardless of gender) 3.Patients scheduled to enter the PACU after surgery 4.Patients who have received sufficient explanation and informed written consent of their own free will to participate in this study.
Exclusion criteria
Exclusion criteria: 1. Patients with a history of hypersensitivity to medications to be used during anesthesia 2. Patients with a preoperative ASA-PS (American Society of Anesthesiologists Physical Status) of 3 or higher 3. Patients who have undergone surgery under general anesthesia at least 1 week before the scheduled surgery 4. Patients who have been using narcotic analgesics and antiarrhythmic drugs regularly before the surgery 5. Patients with a history of atrial fibrillation 6. Patients with a pacemaker 7. Patients who are undergoing surgery other than TKAt or THA at the same time. 8. Patients who do not understand Japanese and cannot perform NRS evaluation. 9. Other patients judged inappropriate as research subjects by the principal investigator and subinvestigators.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Amount of remifentanil used during surgery | — |
Secondary
| Measure | Time frame |
|---|---|
| - NRS from the time of admission to the PACU to the day after surgery - Use of supplemental analgesia from the time of admission to the PACU to the day after surgery - Complications including postoperative nausea and vomiting (PONV) - Vital signs during surgery - HFVI values for both groups | — |
Contacts
Public ContactYuto Matsuoka
Okayama University Hospital
Outcome results
None listed