[Management of new onset atrial fibrillation during acute medical illness].

New-onset atrial fibrillation (AF) occurring during acute medical illness or post-operatively has long been considered a benign phenomenon, and its recurrence risk was deemed low. However, recent data suggest a high risk of AF recurrence, and a thromboembolic risk similar to the risk associated with AF occurring without a provoking factor. As we lack interventional data, there are currently no guidelines on the long-term management of new-onset AF occurring during an acute medical condition.

Estimating the risk thresholds used by guidelines to recommend postpartum thromboprophylaxis.

Background: Guidelines for postpartum thromboprophylaxis are mostly expert based. Acceptable postpartum venous thromboembolism (VTE) risk thresholds to justify the use of thromboprophylaxis are ill defined.

Objective: To compare the proportion of postpartum women with recommended thromboprophylaxis according to the Royal College of Obstetricians and Gynecologists (RCOG), American College of Obstetricians and Gynecologists (ACOG), and American College of Chest Physicians (ACCP) guidelines, and to estimate their threshold of risk of VTE.