• Ann. Thorac. Surg. · May 2014

    Randomized Controlled Trial Comparative Study

    Informed consent for cardiac procedures: deficiencies in patient comprehension with current methods.

    • Shubha Dathatri, Luis Gruberg, Jatin Anand, Jamie Romeiser, Shephali Sharma, Eileen Finnin, A Laurie W Shroyer, and Todd K Rosengart.
    • Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas.
    • Ann. Thorac. Surg. 2014 May 1;97(5):1505-11; discussion 1511-2.

    BackgroundPatients who undergo cardiac catheterization or percutaneous coronary intervention (PCI) often have a poor understanding of their disease and of related therapeutic risks, benefits, and alternatives. This pilot study was undertaken to compare the effectiveness of 2 preprocedural educational approaches to enhance patients' knowledge of standard consent elements.MethodsPatients undergoing first-time elective, outpatient cardiac catheterization and possible PCI were randomly assigned to a scripted verbal or written consent process (group I) or a web-based, audiovisual presentation (group II). Preconsent and postconsent questionnaires were administered to evaluate changes in patients' self-reported understanding of standard consent elements.ResultsOne hundred and two patients enrolled at a single institution completed the pre- and postconsent surveys (group I=48; group II=54). Changes in patient comprehension rates were similar between groups for risk and benefit consent elements, but group II had significantly greater improvement in the identification of treatment alternatives than group I (p=0.028). Independent of intervention, correct identification of all risks and alternatives increased significantly after consent (p<0.05); 4 of 5 queried risks were correctly identified by greater than 90% of respondents. However, misperceptions of benefits persisted after consent; increased survival and prevention of future myocardial infarction were identified as PCI-related benefits by 83% and 46% of respondents, respectively.ConclusionsAlthough both scripted verbal and audiovisual informed consent improved patient comprehension, important patient misperceptions regarding PCI-related outcomes and alternatives persist, independent of informed consent approach, and considerable challenges still exist in educating patients about contemplated medical procedures. Future research appears warranted to improve patient comprehension.Copyright © 2014 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

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