title: Pain characteristics in patients with unexplained chest pain and patients with ischemic heart disease.
abstract: BACKGROUND
  Little scientific attention has been paid to providing a comprehensive multidimensional description of chest pain in patients with unexplained chest pain.
  
  
  OBJECTIVE
  The aims of the present study were: (1) to describe the symptom chest pain, including the dimensions of intensity, quality, duration and location in patients with unexplained chest pain (UCP); and (2) to identify similarities and differences in how patients with UCP and patients with ischemic heart disease (IHD) describe chest pain.
  
  
  METHODS
  A descriptive, correlational and comparative design. Totally 208 consecutive UCP patients and 40 IHD patients below 70 years of age participated. Pain was assessed using the instrument Pain-O-Meter.
  
  
  RESULTS
  The occurrence of chest pain was 79% (n=165) in UCP patients versus 60% (n=22) in the IHD patients (p=0.001). Patients with UCP reported greater pain intensity and used more sensory and affective words than IHD patients (p<0.01). Relationships between pain location and amount of body surface involved in the pain and pain intensity in both groups were found (p<0.001).
  
  
  CONCLUSIONS
  Our results showed some defining characteristics of the UCP group, but the many similarities between the two groups in their experience of chest pain made it impossible to clearly differentiate the groups' pain profiles.
authors.affiliation: The Sahlgrenska Academy at Göteborg University, Institute of Health and Care Sciences, Box 457, SE-40530 Göteborg, Sweden. margaretha.jerlock@fhs.gu.se
authors.forename: Margaretha
authors.initials: M
authors.lastname: Jerlock
authors.forename: Catharina
authors.initials: C
authors.lastname: Welin
authors.forename: Annika
authors.initials: A
authors.lastname: Rosengren
authors.forename: Fannie
authors.initials: F
authors.lastname: Gaston-Johansson
mesh_terms: D000339:Affect; D000787:Angina Pectoris / Q000175:diagnosis / Q000209:etiology / Q000523:psychology; D001294:Attitude to Health; D002637:Chest Pain / Q000175:diagnosis / Q000209:etiology / Q000523:psychology; D016009:Chi-Square Distribution; D003937:Diagnosis, Differential; D004636:Emergency Service, Hospital; D005260:Female; D006785:Hospitals, University; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000150:complications*; D009730:Nursing Assessment / Q000379:methods; D015404:Nursing Methodology Research; D010147:Pain Measurement / Q000379:methods; D012307:Risk Factors; D012660:Semantics; D012677:Sensation; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D013548:Sweden; D013997:Time Factors