title: Transcutaneous oxygen tension measurements following peripheral transluminal angioplasty procedure has more specificity and sensitivity than ankle brachial index.
abstract: OBJECTIVE
  To evaluate the superiority of transcutaneous oxygen pressure (TcPO2) before, during and after peripheral transluminal angioplasty (PTA) in comparison with ankle brachial index (ABI) in patients with diabetes.
  
  
  METHODS
  40 consecutive patients with diabetes treated by PTA where included. This study shows results before, during and after PTA and their progression for 8 weeks.
  
  
  RESULTS
  The TcPO2 increased from 28.11 ± 8.1 to 48.03 ± 8.4 mmHg, 8 weeks after PTA (p < 0.001). The ABI increased from 0.48 ± 0.38 to 0.77 ± 0.39 after PTA (p < 0.001). After PTA, the stenosis of the vessel decreased from 58.33 ± 20.07% to 21.87 ± 13.57% (p < 0.001). TcPO2 was determined in all the patients, but ABI could not be determined in all patients. Furthermore, we determined patients with "false negatives" with an improvement in ABI and "false positives" in 12.5% of patients. Additionally, in this study, we monitored TcPO2 while performing PTA, revealing variations in each phase of the radiological procedure.
  
  
  CONCLUSIONS
  The increase in TcPO2 measurements following PTA procedure has more specificity and sensitivity than does ABI. The use of TcPO2 may represent a more accurate alternative than traditional methods (ABI) used in assessing PTA results. The TcPO2 also allows the radiologist to assess changes in tissue oxygenation during PTA, allowing changes to the procedure and subsequent treatment.
  
  
  CONCLUSIONS
  This is the first time that a graph is shown with TcPO2 results during PTA performance in many patients.
authors.affiliation: 1 Nursing Department, Faculty of Nursing, San Antonio Catholic University, Murcia, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Pardo
authors.forename: M
authors.initials: M
authors.lastname: Alcaraz
authors.forename: F L
authors.initials: FL
authors.lastname: Bernal
authors.forename: J M
authors.initials: JM
authors.lastname: Felices
authors.forename: G D
authors.initials: GD
authors.lastname: Achel
authors.forename: M
authors.initials: M
authors.lastname: Canteras
mesh_terms: D000368:Aged; D017130:Angioplasty / Q000379:methods*; D055109:Ankle Brachial Index / Q000592:standards*; D001785:Blood Gas Monitoring, Transcutaneous / Q000379:methods*; D003925:Diabetic Angiopathies / Q000000981:diagnostic imaging* / Q000378:metabolism / Q000601:surgery; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010100:Oxygen / Q000378:metabolism*; D011184:Postoperative Period; D012372:ROC Curve; D015203:Reproducibility of Results; D012189:Retrospective Studies; D014463:Ultrasonography
chemical_list: D010100:Oxygen