Neurophysiological biomarkers of peripheral nervous system affection in patients with stable chronic obstructive pulmonary disease (COPD)

Ali, Hossam Abd El Monem; Al-Adl, Ahmed Salama

doi:10.1186/s41983-021-00400-6

The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 2 Comparison between patient and control groups as regards to the median, ulnar, radial, common peroneal, and posterior tibial motor nerve assessment

From: Neurophysiological biomarkers of peripheral nervous system affection in patients with stable chronic obstructive pulmonary disease (COPD)

		COPD		Control		T value	P value
		Mean	SD	Mean	SD	T value	P value
Right median nerve	Distal latency (ms)	4.37	0.83	3.68	0.48	4.04	< 0.001*
	Amplitude (mv)	4.26	0.59	6.73	1.51	9.38	< 0.001*
	Conduction velocity (m/s)	49.78	6.93	56	6.97	3.64	< 0.001*
Left median nerve	Distal latency (ms)	4.3	0.84	3.63	0.49	3.87	< 0.001*
	Amplitude (mv)	4.31	0.56	6.81	1.46	9.84	< 0.001*
	Conduction velocity (m/s)	49.7	6.93	56.6	5.82	4.4	< 0.001*
Right ulnar nerve	Distal latency (ms)	3.37	1.08	2.91	0.44	2.16	0.034*
	Amplitude (mv)	4.74	0.79	5.16	0.9	2.05	0.044*
	Conduction velocity (m/s)	52.45	5.84	57.03	5.79	3.25	0.002*
Left ulnar nerve	Distal latency (ms)	3.35	1.07	2.72	0.41	3.01	0.004*
	Amplitude (mv)	4.66	0.75	5.21	0.88	2.8	0.007*
	Conduction velocity (m/s)	51.72	5.96	58	5.51	4.49	< 0.001*
Right redial nerve	Distal latency (ms)	2.76	0.6	2.54	0.21	1.9	0.06 (NS)
	Amplitude (mv)	3.48	0.84	3.99	0.78	2.55	0.013*
	Conduction velocity (m/s)	63.2	5.37	67.53	4.57	3.55	0.001*
Left radial nerve	Distal latency (ms)	2.81	0.62	2.55	0.2	2.23	0.029*
	Amplitude (mv)	3.62	0.82	4.08	0.8	2.3	0.024*
	Conduction velocity (m/s)	62.5	5.32	67.8	4,38	4.4	< 0.001*
Right common peroneal nerve	Distal latency (ms)	5.06	0.67	4.3	0.45	5.19	< 0.001*
	Amplitude (mv)	3.3	0.8	3.7	0.58	2.33	< 0.023*
	Conduction velocity (m/s)	45.5	8.07	53.03	4.54	4.57	< 0.001*
Left common peroneal nerve	Distal latency (ms)	5.12	0.6	4.19	0.44	6.98	< 0.001*
	Amplitude (mv)	3.23	0.75	3.86	0.52	3.91	< 0.001*
	Conduction velocity (m/s)	45.2	8.33	54.9	2.58	6.15	< 0.001*
Right posterior tibial nerve	Distal latency (ms)	5.56	0.54	4.72	0.26	7.85	< 0.001*
	Amplitude (mv)	3.97	0.61	4.47	0.84	2.84	0.006*
	Conduction velocity (m/s)	46.2	6.4	48.46	5.48	1.55	0.13 (NS)
Left posterior tibial nerve	Distal latency (ms)	5.57	0.53	4.7	0.25	8.20	< 0.001*
	Amplitude (mv)	3.95	0.61	4.63	0.83	3.91	< 0.001*
	Conduction velocity (m/s)	46.12	6.55	50.10	5.05	2.76	0.007*

ms millisecond, mv millivolt

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