Preoperative Prevalence of Ulnar Neuropathy and Changes in Ulnar Nerve Latency During Surgery
| Status: | Recruiting |
|---|---|
| Healthy: | No |
| Age Range: | 50 - Any |
| Updated: | 4/22/2016 |
| Start Date: | August 2015 |
| End Date: | August 2016 |
| Contact: | Andrew B Casabianca, MD |
| Email: | andrew.casabianca2@utoledo.edu |
| Phone: | 419-383-6223 |
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.
undergoing surgery. The investigators hope to determine if patients with ulnar neuropathy
have changes in nerve conduction latency during surgery.
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.
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.
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
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