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document
Use and limitations of Holter electrocardiography in assessing drug therapy of myocardial ischemia during the peri-PTCA period . Incidence and pattern of myocardial ischemia during the peri-PTCA ( percutaneous transluminal coronary angioplasty ) period and the possible role of continuous intravenous isosorbide dinitrate in its prevention were examined prospectively in 30 patients . Holter electrocardiographic monitoring was performed for 21 +/- 3 h before PTCA and continued during and for 41 +/- 8 h after the procedure . Before PTCA , 19 ischemic episodes were present in 10 ( 33 % ) of 30 patients . PTCA produced an abrupt decrease in number ( p = 0.015 ) and duration ( p = 0.03 ) of spontaneous ischemic episodes . The rarity of recurrent myocardial ischemic events by Holter monitoring after PTCA negated any attempt at assessing the efficacy of intravenous isosorbide dinitrate in their prevention . Holter monitoring could not be used as an early predictor of late coronary restenosis .
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Intervention_Physical
Holter electrocardiography
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Intervention_Pharmacological
continuous intravenous isosorbide dinitrate
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Intervention_Physical
Holter electrocardiographic monitoring
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Intervention_Physical
Holter monitoring
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Intervention_Pharmacological
isosorbide dinitrate
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Intervention_Physical
Holter monitoring
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Outcome_Other
Use and limitations
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Outcome_Other
Holter electrocardiographic monitoring
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Outcome_Physical
spontaneous ischemic episodes .
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Outcome_Physical
recurrent myocardial ischemic events
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Participant_Condition
myocardial ischemia during the peri-PTCA period
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Participant_Condition
peri-PTCA ( percutaneous transluminal coronary angioplasty )