Cervical artery dissections: Factors that influence causation determination in litigated cases.

In litigated cases, the suspected causes of cervical artery dissections (CADs) are a source of considerable debate among experts. In this study, we sought to examine the factors influencing court decisions and discover how Canadian tribunals analyzed and arbitrated conflicting expert opinions in CAD cases. Cases for this review were identified through searches of the Canadian CANLII database. First, the results of this study show that there is no standardized methodology to assist health care personnel in the processing and interpretation of data in individual cases of CAD. This leads to wide ranges of personal interpretations and opinions which may confuse tribunals. Of concern is the implication of treating physicians who may not have the objectivity to act as expert witnesses when one of their patients is engaged in a legal proceeding.