JACC retracts study on rotor ablation in atrial fibrillation patients

The Journal of the American College of Cardiologists announced its decision to retract a June study titled, "Impact of Rotor Ablation in Nonparoxysmal Atrial Fibrillation Patients Results From the Randomized OASIS Trial," because of problems discovered with its being a randomized trial.

The JACC wrote: "In the title and multiple times in the article, the study is referred to as a "randomized trial" but deviation from a random allocation of subjects to treatments across sites and the imbalance introduced by a non-random “randomization error” were not disclosed in the manuscript."

Additionally, registration with ClinicalTrials.gov was not complete when patient enrollment for the study began.