Preoperative Prevalence of Ulnar Neuropathy and Changes in Ulnar Nerve Latency During Surgery

Ulnar Neuropathy Clinical Trial

Official title:

Preoperative Prevalence of Ulnar Neuropathy and Changes in Ulnar Nerve Latency During Surgery

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02533024
• Other study ID #: Ulnar-Neuropathy-ULE
• Status: Completed
• Phase: N/A
• First received: August 20, 2015
• Last updated: September 21, 2017
• Start date: August 2015
• Est. completion date: April 28, 2017

Study information

• Verified date: September 2016
• Source: University of Toledo Health Science Campus
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study is to investigate the incidence of undiagnosed ulnar neuropathy in patients undergoing surgery. The investigators hope to determine if patients with ulnar neuropathy have changes in nerve conduction latency during surgery.

Description:

After obtaining an informed consent, the participating subjects will be asked a few questions relating to ulnar nerve dysfunction. Following this the investigators will do a focused physical exam looking for decrement of sensation in the distribution of the ulnar nerve and muscle strength of the hand muscles supplied by the ulnar nerve. After this the subjects will undergo an EMG exam to measure the conduction velocity of the ulnar nerve. Basically the nerve will be stimulated with a small current and the resultant muscle activity of the hand muscle will be picked up using an EKG like patch applied to the skin over the hand. If a subject is diagnosed to have ulnar neuropathy preoperatively the investigators would study the EMG based nerve conduction during surgery at 30-60 minute intervals for the duration of surgery. For purposes of comparison the investigators would measure the ulnar nerve conduction during surgery in age and sex matched controls.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 4
• Est. completion date: April 28, 2017
• Est. primary completion date: April 28, 2017
• Accepts healthy volunteers: No
• Gender: All
• Age group: 50 Years and older

Eligibility

Inclusion Criteria:

• 50 yrs of age or older

• Scheduled to undergo a surgical procedure at UTMC with an anticipated length of 2hours or greater

Exclusion Criteria:

• Less than 50yrs

• Not scheduled for a surgical procedure at UTMC or scheduled for a surgical procedure with an anticipated length of less than 2hours

Related Conditions & MeSH terms

• Ulnar Neuropathies
• Ulnar Neuropathy

Intervention

Other:
• Electromyography
All subjects will have an EMG before, during and immediately after surgery.

Locations

Country	Name	City	State
United States	University of Toledo	Toledo	Ohio

Sponsors (1)

Lead Sponsor	Collaborator
University of Toledo Health Science Campus

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Prevalence of ulnar neuropathy in patients scheduled to undergo anesthesia and surgery as measured by electromyography	Prevalence of undiagnosed or subclinical ulnar neuropathy as determined by electromyography	Day 1
Secondary	Amplitude (mV)	Compare preoperative, perioperative and postoperative amplitude changes from EMG	Day 1
Secondary	Latency (ms)	Compare preoperative, perioperative and postoperative latency changes from EMG	Day 1
Secondary	Velocity (m/s)	Compare preoperative, perioperative and postoperative velocity changes from EMG	Day 1