Patients scheduled for elective CABG (Coronary artery bypass surgery). Patients scheduled for elective open major abdominal surgery (gastrointestinal surgery). MedDRA version: 18.0 Level: LLT Classification code 10011090 Term: Coronary artery surgery System Organ Class: 10042613 - Surgical and medical procedures MedDRA version: 18.0 Level: PT Classification code 10068093 Term: Gastrointestinal surgery System Organ Class: 10042613 - Surgical and medical procedures
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Age between 18 and 80 years, ASA I-III , preoperative LVEF > 50% or not known previous heart failure, sinus rhythm. Estimated duration of surgery is more than1.5 hours but less than 8 hours. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 20
Exclusion criteria
Exclusion criteria: Exclusion criteria are disease or medication affecting central nervous system or peripheral nervous system. History of alcohol or drug abuse. Body mass index over 35. Jehovah´s witness who cannot accept albumin.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: Our primary endpoint in this study is to find a correlation between plethysmography signals and volume changes from different SpO2 measurement sites like fingertip, ear lope and nasal septum. ;Secondary Objective: 1) Which pleth site has the best respiratory modulation signal for the purpose of assessment of the patient fluid status? 2)Which pleth site signal predicts best the fluid response? 3)Secondary endpoint is the effect of mild hypothermia to these signals.;Primary end point(s): Our primary endpoint in this study is to find a correlation between plethysmography signals and volume changes from different SpO2 measurement sites like fingertip, ear lope and nasal septum. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): 1) Which pleth site has the best respiratory modulation signal for the purpose of assessment of the patient fluid status? 2)Which pleth site signal predicts best the fluid response? 3)Secondary endpoint is the effect of mild hypothermia to these signals. | — |
Countries
Finland
Contacts
Heart Center Co. Tampere University Hospital