For women with any preexisting risk

For women with any preexisting risk of thromboembolism (cardiac-related or otherwise), progesterone-only methods should be recommended. There is a paucity of evidence-based guidelines on contraception in heart disease. Because of this, in 2006 a British working group of specialists produced recommendations in accordance to the World Health Organization (WHO) classification of risk, based on cardiac lesion complexity and the associated risk with using combined methods (Thorne et al, 2006) (Table 3).