Prospective Evaluation of Interscalene Nerve Catheters vs. Single Injection Blocks

University of Wisconsin (UW)

Status

Terminated

Conditions

Pain

Treatments

Procedure: interscalene block

Procedure: interscalene catheter

Study type

Interventional

Funder types

Other

Identifiers

NCT01385449

H-2010-0098

Details and patient eligibility

About

The primary hypothesis is that those patients who choose an interscalene catheter will have less pain postoperatively than those with single injection blocks. Secondary hypotheses examine physical therapy outcomes and incidence of parasthesia or pain following surgery for up to 3 months.

Enrollment

73 patients

Sex

All

Ages

18 to 79 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

American Society of Anesthesiologists (ASA) physical status 1-3
18-79 years of age, inclusive
body mass index of < 36 kg/m2.
The ability to understand local anesthetic related complications and care of a CPNB
Presence of a caretaker with them during the first 24 hours of local anesthetic infusion, and on a daily basis.
The ability to communicate with the practitioner managing the catheter.
Residence within 2 hours of University of Wisconsin Hospital and Clinics

Exclusion criteria

Any contraindication to a continuous interscalene catheter placement
Clinically significant pulmonary disease
Clinically significant cardiac disease
Allergy to ropivacaine
Peripheral or central nervous system disease
Current (or planned) anticoagulation therapy or disease
Local infection over area of catheter placement
Renal or hepatic failure
History of opioid dependence
Significant psychiatric disease
Pregnancy or lactation (Subjects will be asked if it is possible they could be pregnant. If a subject responds in the affirmative, a pregnancy test will be done.)
Seizure Disorder