Patients were enrolled if the patients aged 60 to 70 years who underwent surgical aortic or mitral valve replacement. The age range was restricted to 60 to 70 years to ensure comparability in surgical indications between prosthesis types. Patients who underwent concomitant coronary artery bypass grafting or aortic surgery were excluded. To construct a cohort at risk for incident mental disorders, we excluded patients with a diagnosis of depression, anxiety disorder , or sleep disorder within one year prior to the index date. These conditions were identified using International Classification of Diseases, Tenth Revision codes recorded in claims data. The exposure of interest was the type of prosthetic valve implanted at the index surgery. Patients were classified into mutually exclusive groups based on the prosthesis type recorded at the index procedure. The primary outcome was incident mental disorder after valve replacement, defined as a composite of depression, and anxiety disorder.
Age range
60 Years – 70 Years
Sex
ALL
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Incident mental disorder after valve replacement
Timeframe: 5 years after surgery