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the Analgesic Duration of Dexmedetomidine Compared to Dexamethasone as Adjuncts to Single Shot Interscalene Block

Opioid Use, Unspecified Clinical Trial

Official title:
Double Blinded Randomized Controlled Study Evaluating the Analgesic Duration of Dexmedetomidine Compared to Dexamethasone as Adjuncts to Single Shot Interscalene Block in Patients Undergoing Ambulatory Shoulder Surgery

Clinical Trial Summary

The purpose of the study is to determine if perineural dexmedetomidine can provide increased prolongation of analgesia when compared to perineural dexamethasone in patients receiving regional block for shoulder surgery. If so, dexmedetomidine may serve as a superior adjunct to peripheral nerve blocks in a rapidly evolving, ambulatory-centered surgical setting.

Clinical Trial Description

Currently, the most commonly employed adjunct to peripheral nerve blockade is perineural dexamethasone. In general, at the doses used in regional anesthesia, dexamethasone has a minimal side effect profile. However, while it has been shown to increase duration of analgesia, there have been concerns regarding its neurotoxicity in animal studies. In addition, dexamethasone has the potential to cause hyperglycemia in patients with impaired glucose metabolism as well as perineal pain and pruritis when administered peripherally.

Dexmedetomidine is a highly selective alpha-2 agonist that is commonly used in patients undergoing anesthesia or requiring sedation in a non-operative setting. As a peripherally administered medication, it has both sedating and analgesic properties, as well as the added benefit of avoidance of respiratory depression. Although it can rarely produce cardiac depression at high doses, its side effect profile is otherwise minimal and is generally very well tolerated by most patients. When administered peripherally, dexmedetomidine has most commonly been associated with side effects such as hypotension, respiratory depression, and bradycardia - although all at significantly higher doses than planned in our study. The safe use of perineural dexmedetomidine together with local anesthetics has been described on numerous occasions. Nevertheless, although it has been shown to potentiate peripheral nerve blockade and prolong duration of analgesia in various studies , it remains rarely used as an adjunct to regional anesthesia. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02653144
Study type Interventional
Source Montefiore Medical Center
Contact
Status Completed
Phase Phase 4
Start date March 2016
Completion date November 27, 2018
View Details
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