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Stroke. 2001;32:1242-1249

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(Stroke. 2001;32:1242.)
© 2001 American Heart Association, Inc.


Original Contributions

Ethical and Methodological Issues in Pedigree Stroke Research

Bradford Burke Worrall, MD; Donna T. Chen, MD, MPH James F. Meschia, MD

From the Departments of Neurology and Health Evaluation Sciences (B.B.W.) and Southeastern Rural Mental Health Research Center and Institute of Law, Psychiatry, and Public Policy (D.T.C.), University of Virginia, Charlottesville; and Department of Neurology, Mayo Clinic Jacksonville (Fla) (J.F.M.). Drs Worrall and Chen contributed equally to the preparation of this article.

Correspondence to Bradford Burke Worrall, MD, University of Virginia Health Systems No. 800394, Charlottesville, VA 22908. E-mail DoChen{at}cc.nih.gov

Background—Stroke is a complex genetic disorder with a variable phenotype. Investigations of heritable factors in complex genetic disorders use pedigree and genetic techniques, which pose different ethical and methodological challenges than those routinely encountered in therapeutic research. Building consensus on acceptable research practices in this field is vital to the success of multicentered collaborations.

Summary of Review—We review important ethical and methodological concerns related to the collection, storage, and release of pedigree research information. The human studies aspects of pedigree research are complicated methodologically because individuals can be active or passive participants and pedigrees can be proband derived, partially validated, or fully validated. Current research ethics frameworks do not work well outside of a dyadic researcher-subject relationship. Privacy and confidentiality for family members must be considered in pedigree research. Investigators should anticipate potential conflicts of interest among family members when designing a pedigree research protocol.

Conclusions—We propose a "proband-initiated contact" methodology in which the proband or the proband’s designate allows identification of potential families without breaching the privacy of individuals in the family. In situations in which family history data are collected without direct contact between researchers and individuals in the proband’s family, an Institutional Review Board may waive consent by family members after appropriate review of the protocol and application of rules for granting waivers of consent. Certificates of Confidentiality should be considered.


Key Words: ethics, medical • family • patient selection • pedigree • stroke




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