Prediction of postoperative effectiveness of nerve block in video/ robotic -assisted thoracoscopic surgery by using high frequency variability index (HFVI), an index of parasympathetic tone: prospective observational study
Not Applicable
Recruiting
- Conditions
- Patients who recieve video-assisted thoracoscopic surgery [VATS] or robotic-assisted thoracic surgery [RATS]
- Registration Number
- JPRN-UMIN000048816
- Lead Sponsor
- Fukushima Medical University
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 48
Inclusion Criteria
Not provided
Exclusion Criteria
Exclude patients and timings with any of the following: 1) Under the age of 18 years old 2) Patients who are expected to be unable to respond to NRS due to severe dementia or sequelae of cerebral infarction 3) Patients with severe arrhythmia 4) Patients using beta-blockers before and during surgery 5) Immediately after using atropine 6) Use of sedatives such as dexmedetomidine after ICU admission 7) Respiratory rate less than 9 times/min 8) severe asthma 9)Skin disease on the anterior chest (where the sensor is attached)
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method The relationship between HFVI values at the end of surgery (just before awakening from general anesthesia) and maximum NRS (greater than/less than 3) from the end of surgery to the day after surgery.
- Secondary Outcome Measures
Name Time Method The relationship between HFVI value immediately before extubation (before awakening from general anesthesia) after completion of surgery and morphine usage from the end of surgery to the next day of surgery. The relationship between the change in HFVI before and after regional anesthesia (initial local anesthesia via epidural catheter or nerve block after induction of general anesthesia) and the maximum NRS (greater than or less than 3) from the end of surgery to the next day after surgery. The relationshiip between HFVI values at the end of surgery and the incidence of delirium diagnosed by CAM-ICU (diagnostic tool for delirium in the ICU). The relationship between HFVI values immediately before extubation after surgery (before awakening from general anesthesia) and the incidence of PONV up to the day after surgery.