Dr. Louis Caplan

The appellants appealed the dismissal of their medical malpractice action.

The trial judge found that the respondent breached the standard of care by discharging the appellant without reviewing an MRA, but concluded that this negligence did not cause the appellant's second, severe stroke.

The Court of Appeal upheld the trial judge's decision, finding no error in the admission of expert evidence and agreeing that the appellants failed to establish a prima facie case on causation, as the evidence did not show that treatment with Heparin would have been more effective than Aspirin in preventing the second stroke.

The plaintiff suffered a life-altering stroke and sued the defendant physician for medical malpractice.

The defendant admitted to breaching the standard of care by failing to review a critical imaging report before discharging the plaintiff, which delayed the diagnosis of a vertebral artery dissection.

The sole issue at trial was causation: whether the delayed administration of anticoagulant therapy (Heparin) caused the plaintiff's second stroke.

After weighing competing expert medical evidence, the court found that while the defendant's negligence delayed the administration of Heparin, the plaintiffs failed to prove on a balance of probabilities that earlier treatment would have prevented the second stroke.

The action was dismissed.