Perfusion Index (PI) and Pleth Variability Index (PVI) in Patients With Interscalene Blocks in Orthopedic Surgery (PI-PVI)

Johannes Gutenberg University (JGU)

Status: Completed

Conditions: Orthopedic Surgery; Interscalene Blocks; Perfusion Index and Pleth Variability Index

Study type: Observational

Funder types: Other

Identifiers

NCT01389011

AS_001

Details and patient eligibility

About

The purpose of this study is to:

1. To describe effects of interscalene nerve blocks on perfusion index (PI) and pleth variability index (PVI) (Radical 7, Masimo Cooperation, Irvine, CA) before and after induction of general anesthesia.
2. To compare effects of fluid-bolusing on PI and PVI of the anesthetized and non-anesthetized limb.

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients scheduled for shoulder or upper arm surgery
• ASA 1-3
• written informed consent
• approval from the local ethics committee

Exclusion criteria

• arrhythmia
• patients suffering from severe vascular disease, coronary artery (CCS IV) disease
• anaemia (haemoglobin < 7mg/dl)
• patients in whom a tidal volume of 8ml/kg cannot be delivered safely