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OpenTrials
Completed

NCT Number: NCT03044496

NIRS Measurement After SCP Block

Peripheral regional anesthesia induces a sympathectomy-like effect with neurovascular changes causing increased arterial blood flow and venodilatation .

Near-infrared spectroscopy (NIRS) can be applied to different kinds of tissue providing oxygen saturation by detecting the absorption and reflection of near-infrared light .

The effect on peripheral tissue oxygenation in patients undergoing arteriovenous fistula revision has not yet been examined. We postulate an increase in tissue oxygenation by sympathicolysis caused by peripheral regional anesthesia that might be the reason for beneficial outcome. The aim of our study was to demonstrate the effect of a supraclavicular plexus block in this group of patients.

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Key information

Conditions

Arterio-venous Fistula Arteriovenous Fistula Arteriovenous Malformations Cardiovascular Abnormalities Cardiovascular Diseases Congenital Abnormalities Congenital, Hereditary, and Neonatal Diseases and Abnormalities Fistula Pathological Conditions, Anatomical Pathological Conditions, Signs and Symptoms Vascular Diseases Vascular Fistula Vascular Malformations

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Marienhospital Stuttgart, Dpt. of Anaesthesiology

Stuttgart, Baden-Wurttemberg, 70199, Germany

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • all patients undergoing surgery under regional anaesthesia

Exclusion criteria

  • patients refusal

Treatment and study plan

Supraclavicular nerve block

Drug

Supraclavicular nerve block using ultrasound and 10ml ropivacaine 0.5% with 20ml mepivacaine 1%

Primary outcomes

  1. NIRS after block

    Time frame: 5 minutes before block until 30 minutes after block

    Absolute change from baseline value in tissue oxygenation

Secondary outcomes

  1. Difference between both arms

    Time frame: 5 minutes before block until 30 minutes after block

    Absolute difference in tissue oxygenation between blocked arm and contralateral arm

Sponsors and collaborators

Lead sponsor

Marienhospital Stuttgart

Other

Registry information

Official study title

Near-infrared Spectroscopy to Assess Changes in Tissue Oxygenation Following Supraclavicular Plexus Block in Patients Undergoing Vascular Surgery

Important dates

Study start
2016
Primary completion
2017
Study completion
2018
First posted
Feb 7, 2017
Registry last updated
Apr 12, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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