title: Measurement of electrical skin impedance of dermal-visceral zones as a diagnostic tool for inner organ pathologies: a blinded preliminary evaluation of a new technique.
abstract: BACKGROUND
  As complementary and alternative medicine is gaining popularity among health consumers, diagnostic screening tools based on neuroreflexology are also being developed. These techniques, which are based on the rationale that measurement of electrical impedance of specific dermatomes reflects corresponding internal organ pathologies, have not yet been the subject of conventional scientific research.
  
  
  OBJECTIVE
  To determine the effectiveness of a neuroreflexology-based screening test, specifically the Medex device (Medex Screen Ltd.), for diagnosing patients undergoing conventional internal organ assessment, in a hospital setting.
  
  
  METHODS
  Patients admitted to an internal medicine department, who met the inclusion criteria and agreed to participate, underwent conventional medical evaluation that included past medical history and physical examination. Another examination was conducted by a second physician using the Medex device to determine internal organ pathologies. A third researcher compared the actual "conventional" diagnosis with the Medex device output using standard statistical analysis.
  
  
  RESULTS
  Overall, 150 patients participated in the study. Correlation was significant for all categories (P < 0.01) except for blood and lymphatic disease. A high sensitivity (>70%) was measured for cardiovascular, respiratory, gastrointestinal and genitourinary diseases. The highest measure of agreement, as represented by the Cohen-Kappa factor, was found for respiratory disease (0.57).
  
  
  CONCLUSIONS
  Although the exact mechanism is not entirely clear, measurement of electroskin impedance of dermal-visceral zones has the potential to serve as a screening tool for inner organ pathologies. Further research should be conducted to create more evidence to support or dispute the use of this technique as a reliable diagnostic tool.
authors.affiliation: Department of Internal Medicine B, Sheba Medical Center, Tel Hashomer, Israel Affiliated to Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel. zimlich1@zahav.net.il
authors.forename: Eyal
authors.initials: E
authors.lastname: Zimlichman
authors.forename: Amnon
authors.initials: A
authors.lastname: Lahad
authors.forename: Anabel
authors.initials: A
authors.lastname: Aron-Maor
authors.forename: Alexander
authors.initials: A
authors.lastname: Kanevsky
authors.forename: Yehuda
authors.initials: Y
authors.lastname: Shoenfeld
mesh_terms: D000529:Complementary Therapies; D019937:Diagnostic Techniques and Procedures; D017097:Electric Impedance; D005260:Female; D006801:Humans; D008297:Male; D008405:Massage / Q000295:instrumentation* / Q000379:methods; D008875:Middle Aged; D010808:Physical Examination / Q000379:methods*; D012680:Sensitivity and Specificity; D012867:Skin