====== Nerve conduction findings according to age ====== |Indicative sensory conduction findings according to age ||||| | |Median nerve ||Sural nerve || |Age ( n ) |Conduction velocity (m/s) |Amplitude (μV) |Conduction velocity (m/s) |Amplitude (μV) | |7 dayI mth (20) |22.31 (2.16) * |6.22 (1.30) |20.26 (1.55) |9.12 (3.02) | |1–6 mths (23) |35.52 (6.59) |15.86 (5.18) |34.63 (5.43) |11.66 (3.57) | |6–12 mths (25) |40.31 (5.23) |16.00 (5.18) |38.18 (5.00) |15.10 (8.22) | |1–2 yrs (24) |46.93 (5.03) |24.00 (7.36) |49.73 (5.53) |5. (9.98) | |2–4 yrs (22) |49.51 (3.34) |24.28 (5.49) |52.63 (2.96) |23.27 (6.84) | |4–6 yrs (20) |51.71 (5.16) |25.12 (5.22) |53.83 (4.34) |22.66 (5.42) | |6–14 yrs (21) |53.84 (3.26) |26.72 (9.43) |53.85 (4.19) |26.75 (6.59) | |Indicative motor conduction findings according to age |||||| | | | | |Median nerve || | |Peroneal nerve || | | |Age ( n ) |DML (ms) |CV (ms) |F (ms) |AMP (mV) |DML (ms) |CV (ms) |F (ms) |AMP (mV) | |7 dayI mth (20) |2.23 (0.29)* |25.43 (3.84) |16.12 (1.5) |3.00 (0.31) |2.43 (0.48) |22.43 (1.22) |22.07 (1.46) |3.06 (1.26) | |1–6 mths (23) |2.21 (0.34) |34.35 (6.61) |16.89 (1.65) |7.37 (3.24) |2.25 (0.48) |35.18 (3.96) |23.11 (1.89) |5.23 (2.31) | |6–12 mths (25) |2.13 (0.19) |43.57 (4.78) |17.31 (1.77) |7.67 (4.45) |2.31 (0.6) |43.55 (3.77) |25.86 (1.35) |5.41 (2.01) | |1–2 yrs (24) |2.04 (0.18) |48.23 (4.58) |17.44 (1.29) |8.90 (3.61) |2.29 (0.43) |51.42 (3.02) |25.98 (1.95) |5.80 (2.48) | |2–4 yrs (22) |2.18 (0.43) |53.59 (5.29) |17.91 (1.11) |9.55 (4.34) |2.62 (0.75) |55.73 (4.45) |29.52 (2.15) |6.10 (2.99) | |4–6 yrs (20) |2.27 (0.45) |56.26 (6.61) |19.44 (1.51) |10.37 (3.66) |3.01 (0.43) |56.14 (4.96) |29.98 (2.68) |7.10 (4.76) | |6–14 yrs (21) |2.73 (0.44) |57.32 (3.35) |23.23 (2.57) |12.37 (4.79) |3.25 (0.51) |57.05 (4.54) |34.27 (2.29) |8.15 (4.19) | |* Mean (SD) DML, distal motor latency; CV, conduction velocity; AMP, amplitude; F, F-wave latency; Adapted from Parano E, Uncini A, De Vivo DC, Lovelace RE (1993) [[https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=8228028|Electrophysiologic correlates of peripheral nervous system maturation in infancy and childhood.]] //J Child Neurol// 8 (4):336-8. DOI: [[http://dx.doi.org/10.1177/088307389300800408|10.1177/088307389300800408]] PMID: [[https://pubmed.gov/8228028|8228028]]. ||||||||| {{tag>neurolists}} Source: Forsyth R, Newton R, eds. //Paediatric Neurology (Oxford Specialist Handbooks in Paediatrics)//. 3 ed. ed. Oxford, UK: Oxford University Press; 2017. https://oxfordmedicine.com/view/10.1093/med/9780198784449.001.0001/med-9780198784449. \\