title: Clinical significance of electrocardiography recordings from a higher intercostal space for detection of the brugada sign.
abstract: BACKGROUND
  The significance of higher intercostal space electrocardiography (HICS ECG) for the detection of the Brugada sign was investigated.
  
  
  RESULTS
  The subjects consisted of 113 cases (108 males, 5 females; mean age, 57+/-17 years) with incomplete right bundle branch block type QRS morphology and ST-segment elevation (>0.10 mV) in the right precordial leads. Obvious structural heart disease was not observed in any of the subjects. The V(1-3) leads of the standard 12-lead ECG and the HICS ECG were recorded in the supine position, and the amplitude of the terminal portion of the QRS (J-point) and ST-segment (80 ms from the J-point) were measured. In the HICS ECG, there was an increase in the area in which the Brugada sign was detectable (47 leads to 66 leads), and in cases with the Brugada sign, the amplitude of the J-point increased.
  
  
  CONCLUSIONS
  The HICS ECG may be helpful for the detection of the Brugada sign.
authors.affiliation: Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nakazawa
authors.forename: Tsuneharu
authors.initials: T
authors.lastname: Sakurai
authors.forename: Akihiko
authors.initials: A
authors.lastname: Takagi
authors.forename: Ryoji
authors.initials: R
authors.lastname: Kishi
authors.forename: Keizo
authors.initials: K
authors.lastname: Osada
authors.forename: Osamu
authors.initials: O
authors.lastname: Miyazu
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Watanabe
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Miyake
mesh_terms: D000328:Adult; D000368:Aged; D016757:Death, Sudden, Cardiac; D004198:Disease Susceptibility; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D007366:Intercostal Muscles; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D013577:Syndrome; D014693:Ventricular Fibrillation / Q000209:etiology