Study of the measures of optimal vein width for veinpuncture.
Conditions
Interventions
Group 1: Measurement of the vein width/cross-sectional area of the cubital vein and V.cephalica with/without torniquet and with/without general anesthesia in 0° retroflexion in the shoulder joint.
Gr
Sponsors
Klinik für Anästhesiologie m. S. operative Intensivmedizin, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: - Age = 18 years - Planned general anesthesia - ASA classification I or II
Exclusion criteria
Exclusion criteria: - Systemic vascular disease - Local vascular disease in the area of planed sonography - systolic or diastolic dysfunction - Diseases or surgery on arm/shoulder or upper thoracic apperture - Venous puncture on the limb to be measured within 2 weeks prior to examination - History of frequent venous puncture (chronic disease with e.g. chemotherapy, i.v. drug use) - Vasoactive concomitant medication before general anesthesia start - ASA > II
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Change in sonographically measured vein width/area of vein cross-section between 0°, 30° and max retroflexion with 60mmHg torniquet and without torniquet, both awake and under general anesthesia. | — |
Primary
| Measure | Time frame |
|---|---|
| Change in sonographically measured vein width/area of vein cross-section between 0° and 30° retroflexion with 60mmHg torniquet. | — |
Countries
Germany
Contacts
Public ContactChristian Berger
Klinik für Anästhesiologie m. S. operative Intensivmedizin, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin
Outcome results
None listed