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Laboratory Reference for Clinical Neurophysiology$

Jay A. Liveson and Dong M. Ma

Print publication date: 1999

Print ISBN-13: 9780195129243

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195129243.001.0001

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(p.428) Appendix II * Premature Subjects

(p.428) Appendix II * Premature Subjects

Source:
Laboratory Reference for Clinical Neurophysiology
Publisher:
Oxford University Press

Cerra and Johnson (1962)99

n 〈 19 s = 11

Appendix II * Premature Subjects

Churchill-Davidson and Wise (1963)112

Repetitive nerve stimulation

n = 8 s = 5 newborns

Appendix II * Premature Subjects Ulnar nerve stimulation at the elbow; needle recording from hypothenar muscles; nitrous oxide anesthesia; body temperature maintained.

(p.429) Dubowitz (1965)165; and Dubowitz et al. (1968)166

n 〈 73 s = 39

Appendix II * Premature Subjects

(p.430) Schulte et al. (1968)595

Appendix II * Premature Subjects

(p.431) Schulte et al. (1968)594

Moro reflex tested as reflected in biceps and triceps brachii activity.

Ruppert and Johnson (1968)575

s = 19

Appendix II * Premature Subjects

(p.432)

Appendix II * Premature Subjects

Blom and Finnström (1968)56

s = 45

Appendix II * Premature Subjects

(p.433)

Appendix II * Premature Subjects

Blom and Finnström (1971)57

s = 20

Appendix II * Premature Subjects

Moosa and Dubowitz (1972)486

Appendix II * Premature Subjects *

(p.434)

Appendix II * Premature Subjects

Wagner and Buchthal (1972)713

Median, ulnar

Appendix II * Premature Subjects

(p.435)

Appendix II * Premature Subjects

(p.436)

Appendix II * Premature Subjects

Innes (1972)297

s = 59 Tibial

Appendix II * Premature Subjects

(p.437) Koenigsberger, Patten, and Lovelace (1973)381

Repetitive nerve stimulation

s = 17 newborns (gestational age 34–42 wk)

Appendix II * Premature Subjects

Stimulation for 15 sec at 1, 2, 5, 10, 20 and 50 Hz; wrist stimulation of the median nerve; surface recording from thenar muscles; latencies are peak to peak (P-P) and negative peak (Neg-P).

Hrbek, Karlberg, and Olsson (1973)290

Flash VERs

n = 98 s = 48 (24−42 wk gestational age)

Photostimulator at 0.05 to 1 Hz; earliest feature was a negative peak (N2), followed by a subsequent positive peak (P3), and later by a preceding positive wave (P1).

Appendix II * Premature Subjects

(p.438)

Appendix II * Premature Subjects

SERs

Median stimulation.

Appendix II * Premature Subjects

(p.439) Thibeault, Laul, and Guiak (1975)679

s = 60

Appendix II * Premature Subjects

(p.440)

Appendix II * Premature Subjects

Martinez, Conde, and Ferrer (1977)448

s = 372

Appendix II * Premature Subjects

(p.441) Hecox, Cone, and Blaw (1981)272

BAERs

n = 30 neonates

Appendix II * Premature Subjects

Stockard et al. (1983)658

BAERs

n = 78 full-term neonates

Appendix II * Premature Subjects

Misra et al. (1989)482

s = 20 neonates (1 to 28 days) m = 9.7 days

Height m = 47.8 cm (46 to 56)

Appendix II * Premature Subjects

Fapb was measured with wrist stimulation; Fapb was measured to the onset; ten waves were measured; H reflexes were elicited using submaximal stimulation; besides the minimal and maximum latency, the difference between these two, the duration, and the amplitude were measured.

Bryant and Eng (1991)76

s = 83 (31 to 45 weeks gestation)

Appendix II * Premature Subjects Surface stimulation at the popliteal fossa; surface recording, active electrode at the midpoint of the gastrocnemius with reference on the Achilles tendon; stimulus duration of 0.1 msec at subthreshold intensity for motor response; subject prone or (p.442) on side; leg length measured from lumbosacral junction (where a dimple is usually evident) to the medial malleolus; temperature stabilized within or outside incubator.

An index can be calculated by dividing the latency by the leg length, which correlates more closely to the conceptual age. The value for this is 1.21 ± 0.23 for the 31 to 34 week group, 0.87 ± 0.09 for the 35 to 39 week group, and 0.78 ± 0.09 for the 40 to 45 week group.

Notes:

(*) The figures in this appendix have been adapted from those that accompanied the studies as originally published in various professional journals.

(*) Conduction Velocity