title: The usefulness of proximal radial motor conduction in acute compressive radial neuropathy.
abstract: OBJECTIVE
  The objective of this study was to determine diagnostic and prognostic values of proximal radial motor conduction in acute compressive radial neuropathy.
  
  
  METHODS
  Thirty-nine consecutive cases of acute compressive radial neuropathy with radial conduction studies-including stimulation at Erb's point-performed within 14 days from clinical onset were reviewed. The radial conduction data of 39 control subjects were used as reference data.
  
  
  RESULTS
  Thirty-one men and eight women (age, 45.2±12.7 years, mean±SD) were enrolled. All 33 patients in whom clinical follow-up data were available experienced complete recovery, with a recovery time of 46.8±34.3 days. Partial conduction block was found frequently (17 patients) on radial conduction studies. The decrease in the compound muscle action potential area between the arm and Erb's point was an independent predictor for recovery time.
  
  
  CONCLUSIONS
  Proximal radial motor conduction appears to be a useful method for the early detection and prediction of prognosis of acute compressive radial neuropathy.
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Kun Hyun
authors: KH
authors: Kim
authors: Department of Neurology, Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea.
authors: Kee Duk
authors: KD
authors: Park
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Pil Wook
authors: PW
authors: Chung
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Heui Soo
authors: HS
authors: Moon
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Yong Bum
authors: YB
authors: Kim
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Won Tae
authors: WT
authors: Yoon
authors: Department of Neurology, Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea. sigund@ewha.ac.kr.
authors: Hyung Jun
authors: HJ
authors: Park
authors: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. bcsuh@skku.edu.
authors: Bum Chun
authors: BC
authors: Suh
keywords: conduction block; diagnosis; nerve conduction study; prognosis; radial neuropathy