catamenial

Catamenial refers to a phenomenon that occurs cyclically, most commonly in relation to a woman's menstrual cycle. The term is derived from the Greek word "katamēnia," meaning monthly. While it can broadly describe any recurring event tied to menstruation, it is most frequently used in a medical context to denote catamenial epilepsy or catamenial pneumothorax.

Catamenial epilepsy is a form of epilepsy where seizures are more frequent or severe during specific phases of the menstrual cycle, particularly around ovulation or menstruation. This is thought to be due to hormonal fluctuations, specifically changes in estrogen and progesterone levels, which can affect neuronal excitability. Treatment often involves hormonal therapy in conjunction with anti-epileptic drugs.

Catamenial pneumothorax is a rare condition characterized by the recurrent collapse of a lung that coincides with a woman's menstrual period. It is typically right-sided, although it can occur on the left. The underlying cause is believed to be endometriosis, where endometrial tissue implants on or near the diaphragm, allowing air to leak into the pleural space. Treatment options may include hormonal suppression of menstruation, surgical intervention to remove endometrial implants, or pleurodesis to prevent recurrence. The term "catamenial" serves as a descriptor for the cyclical nature of these medical conditions.