HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Atrial pacing during percutaneous transluminal coronary angioplasty: results and comparison with exercise treadmill testing.

Abstract
Right atrial pacing (RAP) was used to immediately assess improvement in threshold for myocardial ischemia in 23 patients undergoing angiographically successful percutaneous transluminal coronary angioplasty (PTCA). Multiple coronary lesions were present in 19 patients, and 15 had incomplete revascularization. All patients had RAP done immediately before and after completion of all dilatations, and in 13 patients pre- and post-PTCA exercise treadmill tests (ETT) were also performed. Angina occurred in 16 (70%) patients during pre-PTCA RAP, but in only 4 (17%) after PTCA (p less than .05). The electrocardiogram was positive for ischemia (horizontal or downsloping ST depression greater than or equal to 1 mm) in 18 patients (78%) during pre-PTCA RAP. However, 13 patients (57%) continued to have an ischemic response during post-PTCA RAP (not significant-NS). In 4 patients with multiple coronary lesions who had sequential pacing studies after PTCA of each lesion, the maximum degree of ST depression decreased by 1 mm or more after each dilatation in 3 patients but remained greater than or equal to 1 mm in all. In the 13 patients undergoing both RAP and ETT, angina developed in 7 during pre-PTCA RAP and in 2 after PTCA (p less than .05), compared with 8 and 3 (p less than .05) during pre- and post-PTCA ETT, respectively. Ischemic ST depression occurred in 9 patients during pre-PTCA RAP and in 6 after PTCA (NS), and in 8 and 6 (NS) during pre- and post-PTCA ETT, respectively. Concordance between the two tests was good.(ABSTRACT TRUNCATED AT 250 WORDS)
AuthorsH Stratmann, U T Aker, M G Vandormael, T Ischinger, R Wiens, H L Kennedy
JournalAngiology (Angiology) Vol. 38 Issue 9 Pg. 663-71 (Sep 1987) ISSN: 0003-3197 [Print] United States
PMID2959175 (Publication Type: Comparative Study, Journal Article)
Topics
  • Adult
  • Aged
  • Angina Pectoris (etiology)
  • Angioplasty, Balloon (adverse effects)
  • Cardiac Pacing, Artificial
  • Coronary Disease (physiopathology, therapy)
  • Electrocardiography
  • Evaluation Studies as Topic
  • Exercise Test (adverse effects)
  • Female
  • Heart Atria (physiopathology)
  • Humans
  • Male
  • Middle Aged

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: