Pilot study on the practicability of a prototype for measuring capillary refill time
- Conditions
- Microcirculation disorders after blood loss, volume shift or during single lung ventilation
- Registration Number
- DRKS00023850
- Lead Sponsor
- Klinik & Poliklinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Carl Gustav Carus Dresden
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 90
Declaration of consent of the patients
- Age over 18 years
- Sinus Rhythm
- Ability to give consent
- Planned major surgical intervention in visceral/thoracic surgery, urology or orthopedics/accident surgery under general anesthesia with expected major blood losses =500ml
- Necessary application of an invasive arterial blood pressure measurement
- Refusal
- Pacemaker
- higher grade valvular disease
- BMI =30 kg/m2
- Peripheral arterial occlusive disease
- Raynaud's disease
- Existing catecholamine needs
- Intraoperative equipping of an epidural catheter
- Septic patients
- Chron. Skin diseases
- Allergy to Propofol/Soya/Rocuronium
- Contraindication for inhalative anesthesia
- Extensive injuries/burns/ bandages on forearms, feet/ hands/ forehead/ chest
- Rheumatism or diseases of the rheumatoid form
- Varicosis at the site to be examined
- Preoperative use of vasodilatory drugs
- Pre-operation on body areas to be examined
- Pronounced edema in the body parts to be examined
Study & Design
- Study Type
- observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method -acquisition of the digital CRT at rest / during / after anaesthesia and after blood loss >500ml or during single lung ventilation
- Secondary Outcome Measures
Name Time Method - intensity of pain during the operation<br>- CRT on different parts of the body<br>- Lactate, pO2, cardiac output changes under single lung ventilation, after blood loss >500ml