NCT01926561

Predictive Factors for Hypotensive Bradycardic Events During Arthroscopic Shoulder Surgery

Predicting the Occurence of Hypotensive Bradycardic Events in the Patients Undergoing Arthroscopic Shoulder Surgery in the Sitting Position Under Interscalene Brachial Plexus Block

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 68 (actual)
• Sponsor: Daegu Catholic University Medical Center · Academic / Other
• Sex: All
• Age: 15 Years – 80 Years
• Healthy volunteers: Accepted

Summary

Patients's demographics and perioperative factors affect the occurrence of hypotensive bradycardic events in the patients undergoing arthroscopic shoulder surgery in the sitting position under interscalene block.

Detailed description

Patients' age, Side of the block,Horner's syndrome, the degree of blockade, preoperative fasting time and fluid administration volume, waiting time for sitting position after the block, intraoperative use of opioids and antihypertensives, and change of heart rate variability before the block and after sitting position affect the occurrence of hypotensive bradycardic events in the patients undergoing arthroscopic shoulder surgery in the sitting position under interscalene block.

Conditions

• Syncope, Vasovagal

Interventions

Type	Name	Description
OTHER	Interscalene brachial plexus block	After sterile draping around interscalene groove with povidone, a nerve stimulating needle connected to a nerve stimulator is inserted through the interscalene groove. Following involuntary contraction of shoulder, arm, forearm, or hand muscles with 0.5 milliamperes at 1 Hz using the nerve stimulator, 30 to 40 ml of mixture of 1% mepivacaine 20 ml and 0.75% ropivacaine 20 ml are injected.

Timeline

• Start date: 2011-08-01
• Primary completion: 2012-06-01
• Completion: 2012-06-01
• First posted: 2013-08-21
• Last updated: 2013-10-08

Locations

1 site across 1 country: South Korea