Thank you for responding! I appreciate your effort - and your math! haha
I posted Chat Gpt response below - just another guesstimate. It's confusing to me that it is so hard to get actual number. Hopefully an expert who sees this post can chime in...
FROM CHAT-GPT: ~1,700–2,000 (estimated)
Incidence: Vestibular schwannomas (acoustic neuromas) occur in roughly 2,500–3,300 people annually in the U.S., based on incidence estimates of about 1.0–1.2 cases per 100,000 population per year and U.S. population figures.
🔪 Surgical Volume — The exact number of surgeries each year isn’t universally tracked in a single report, but large retrospective analyses provide good estimates:
A national analysis of surgical trends from 2001–2014 found that annual surgical resections for vestibular schwannoma declined from about ~2,807 procedures in 2001 to ~1,795 in 2014.
That suggests recent years likely see on the order of about ~1,700–2,000 surgical resections per year in the U.S., given stable incidence but increasing use of non-surgical treatments (e.g., radiosurgery).
Older surgical outcome studies and registries also support similar annual volumes in the low-thousands during earlier decades, consistent with the above trend.
📌 Key Points
Total new acoustic neuroma diagnoses per year in the U.S.: ~2,500–3,300.
Estimated surgical resections per year: ~1,700–2,000 (based on historical surgical volumes and declining trends).
Not every diagnosed patient undergoes surgery—many are managed with observation or radiotherapy, especially for small tumors.
📊 Summary Estimate
Metric Approximate Annual U.S. Count
Vestibular schwannoma diagnoses ~2,500–3,300
Surgical resections performed
~1,700–2,000 (estimated)
