Data (e.g. type of procedure, platelet count, etc.) will be collected retrospectively or prospectively from patient visits occurring within approximately 7 calendar days prior to the first dose of avatrombopag, on Procedure Day, on Discharge Day, and from any clinic visit performed up to 30 days post-procedure. All treatment decisions and clinical assessments will be at the discretion of the treating physician per routine medical care and are not mandated by study design or protocol.