Patient preferences for thrombolytic therapy in acute myocardial infarction.
BACKGROUND
Despite extensive professional debate regarding the optimal thrombolytic therapy strategy in acute myocardial infarction (AMI), patient preferences have not been explored.


METHODS
Preferences among patients with known or suspected coronary artery disease for treatment with tissue plasminogen activator (tPA) or streptokinase (SK) for AMI were determined using a questionnaire presenting GUSTO-1 trial and drug cost data. Preferences were based on consideration of 30-day mortality (M) alone, hemorrhagic stroke rate (SR) alone, overall preference (M + SR), drug acquisition costs, and the estimated annual costs of using a single agent to treat all AMIs. Cost-related responses were provided under payer designations of self, third-party insurance, and federal government.


RESULTS
The response rate was 81% (101/125 patients). tPA was preferred by 84%, and SK by 66%, for M alone and SR alone, respectively (chi 2, p < 0.01). Overall preference (M + SR) favored tPA (78%, p < 0.01). tPA preference decreased to 43% considering drug acquisition costs under the self-pay option (p < 0.01 vs M + SR). Similar trends of lesser magnitude were also observed for the third-party and government-payer options.


CONCLUSIONS
Under conditions of zero cost and consideration of mortality plus stroke-risk data, tPA were preferred overall due to its lower mortality. Introduction of drug-cost data significantly shifted the preference toward SK, particularly under the self-payer designation. Patient preferences for thrombolytic therapy in AMI indicate tradeoffs between clinical attributes and costs, and should assist in framing medical debate and decision making.
Stanek
E J
EJ
Department of Pharmacy Practice and Pharmacy Administration, Philadelphia College of Pharmacy and Science, PA 19104, USA.
Cheng
J W
JW
Peeples
P J
PJ
Simko
R J
RJ
Spinler
S A
SA
D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D002561:Cerebrovascular Disorders / Q000453:epidemiology; D003657:Decision Making; D016527:Drug Costs; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000188:drug therapy* / Q000401:mortality; D010960:Plasminogen Activators / Q000627:therapeutic use; D012044:Regression Analysis; D013300:Streptokinase / Q000627:therapeutic use; D015912:Thrombolytic Therapy / Q000191:economics; D010959:Tissue Plasminogen Activator / Q000627:therapeutic use; D014481:United States / Q000453:epidemiology
D013300:Streptokinase; D010960:Plasminogen Activators; D010959:Tissue Plasminogen Activator