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Risk of hematoma following needle electromyography of the paraspinal muscles
Jon T Gertken1, Christopher H Hunt, Nataly I Montes Chinea
1Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, USA.
Abstract:
The purpose of this study was to establish the incidence of MRI-detectable hematomas following paraspinal EMG. We provide a retrospective review of patients who underwent paraspinal EMG and subsequent concordant level spine MRI. A total of 370 charts (431 MRIs) met the inclusion criteria. No paraspinal hematomas were observed. These results should further the development of evidence-based guidelines for patients who have greater-than-normal bleeding risk and support the notion that paraspinal EMG is a relatively safe procedure.
Insights
Paraspinal electromyography (EMG) appears safe, with no MRI-detectable hematomas found in a review of 370 patients. This supports EMG as a low-risk procedure, even for those with bleeding concerns.
Area of Science:
- Neurology
- Radiology
- Medical Procedures
Background:
- Electromyography (EMG) is a diagnostic tool used to assess nerve and muscle health.
- Concerns exist regarding potential complications, such as hematoma formation, following paraspinal EMG.
Purpose of the Study:
- To determine the incidence of MRI-detectable hematomas after paraspinal EMG.
- To evaluate the safety profile of paraspinal EMG.
Main Methods:
- Retrospective review of patient charts and spine MRIs.
- Inclusion criteria: patients undergoing paraspinal EMG and subsequent MRI at the same spinal level.
- Analysis of 370 patient charts and 431 MRIs.
Main Results:
- No instances of paraspinal hematomas were detected on MRI.
- The study found zero incidence of hematoma formation post-paraspinal EMG.
Conclusions:
- Paraspinal EMG is a relatively safe procedure with a low risk of hematoma.
- Findings support the development of evidence-based guidelines for patients with bleeding risks.
- The study reinforces the safety of paraspinal EMG.
