Interstage Period
Critical interval between first and second stage operations in complex heart defect repair.
Full Definition
The interstage period refers to the vulnerable time interval between the first and second stages of surgical repair in complex congenital heart diseases, particularly hypoplastic left heart syndrome and other single ventricle lesions. This period typically spans from the initial Norwood operation (or equivalent) to the bidirectional Glenn shunt, usually occurring between 3-6 months of age. During this time, patients face increased mortality risk due to volume overload of the single ventricle, shunt stenosis, or intercurrent illnesses. Careful monitoring includes regular cardiology visits, home monitoring programs, and parental education about warning signs. Successful interstage management is crucial for optimal outcomes in staged surgical reconstruction.
Usage
Usage note: Specific to multi-stage surgical approaches; capitalize when referring to formal programs.
In Context
- "The patient successfully navigated the interstage period without significant complications." — Surgical Follow-up
- "Interstage mortality remains a significant concern in single ventricle reconstruction programs." — Outcomes Report