A comprehensive electrophysiological evaluation of phrenic nerve injury related to open-heart surgery
| Autor: | R. S. Howard, Elisabeth Chroni, R. L. Patel, Nicholas Taub, Chrysostomos P. Panayiotopoulos, G. E. Venn |
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| Rok vydání: | 1995 |
| Předmět: |
Male
medicine.medical_specialty Diaphragmatic breathing Coronary Disease Functional Laterality Phrenic Nerve Injury Postoperative Complications Reaction Time medicine Humans Coronary Artery Bypass Latency (engineering) Aged Phrenic nerve Paresis Neurologic Examination Electromyography business.industry Signal Processing Computer-Assisted General Medicine Middle Aged Respiratory Paralysis Electric Stimulation Surgery Phrenic Nerve Electrophysiology medicine.anatomical_structure Neurology Anesthesia Circulatory system Female Neurology (clinical) medicine.symptom Intercostal space business |
| Zdroj: | Acta Neurologica Scandinavica. 91:255-259 |
| ISSN: | 1600-0404 0001-6314 |
| DOI: | 10.1111/j.1600-0404.1995.tb07000.x |
| Popis: | A prospective electrophysiological study of phrenic nerve was performed in 59 subjects undergoing open-heart surgery. The nerve was stimulated percutaneously at the neck and the diaphragmatic response was recorded with surface electrodes placed over the 8th intercostal space. The latency, amplitude, duration and area of the evoked response were measured before and after the operation. Post-operatively no response was elicited in 2 patients bilaterally, in 5 from the left and in 2 from the right. Comparison of the post-operative with the pre-operative group values in the remaining subjects showed that the amplitude and area of the left phrenic were lower in the post-operative study, indicating that some of the nerve fibres were not conducting. There were no statistically significant differences between pre and post-operative values of latency or duration on the left or any of the parameters on the right. Our findings suggest that the amplitude and area of the diaphragmatic response are more sensitive than latency in detecting phrenic nerve paresis associated with open-heart surgery. |
| Databáze: | OpenAIRE |
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