Evoked Potentials in Patients with Chronic Respiratory Insufficiency
| Autor: | Katsumasa Tokunaga, Shigehiro Imamura, Isao Hashimoto, Shuji Nakano, Sadatoshi Tsuji |
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| Rok vydání: | 1997 |
| Předmět: |
Male
medicine.medical_specialty Matched-Pair Analysis Audiology Somatosensory system Cognition Evoked Potentials Somatosensory Evoked Potentials Auditory Brain Stem Reaction Time Internal Medicine Humans Medicine Brainstem auditory evoked potential Latency (engineering) Aged Emphysema medicine.diagnostic_test business.industry Respiratory disease General Medicine Middle Aged Hypoxia (medical) medicine.disease Event-Related Potentials P300 Respiratory failure Somatosensory evoked potential Chronic Disease Female Brainstem medicine.symptom Respiratory Insufficiency business |
| Zdroj: | Internal Medicine. 36:270-275 |
| ISSN: | 1349-7235 0918-2918 |
| Popis: | P300, somatosensory evoked potential (SEP) and brainstem auditory evoked potential (BAEP) are widely used neurophysiological methods for objectively evaluating cognitive, somatosensory and brainstem auditory functions. We studied the P300, SEP and B AEP in 17 patients with chronic respiratory insufficiency (PaO2:58.2±7.0 mmHg; mean ± SD) and 15 age-matched healthy subjects (PaO2: 84.4 ± 11.3 mmHg). The latency and amplitude of P300, the N9 latency, N9-N13 and N13-N20 interpeak latencies (IPL) in SEP, wave I latency and I-VIPL in B AEP were compared between the patients and controls. The P300 latency, N9-N13 and N13-N20 IPLs in SEP in the patients were significantly prolonged compared to the controls. In contrast, the amplitude of P300, N9 latency in SEP, wave I latency and I-V IPL in B AEP were not significantly different between the patients and controls. These results suggest that chronic respiratory insufficiency influences the cognitive and somatosensory functions, and indicate that there is a selective vulnerability of evoked potentials to this condition.(Internal Medicine 36: 270-275, 1997) |
| Databáze: | OpenAIRE |
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