ANA Discussion Forum

Treatment Options => Radiation / Radiosurgery => Topic started by: sandyinwisconsin on March 16, 2014, 04:41:18 pm

Title: HOW COMMON IS FAILED RADIATION?
Post by: sandyinwisconsin on March 16, 2014, 04:41:18 pm

I'm just curious if any of you long-term members know approximately how many people had their AN radiation fail?

My radiation doctor is in his 50s, and he said in his lifetime, he's had one SRS failure.  Mine was 27 treatments.

Thank you - Happy St. Patrick's Day  :)

Sandy

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: arizonajack on March 16, 2014, 05:57:25 pm

Here's a couple of articles that might answer the question:

http://www.panarabneurosurgery.org.sa/journal/October2008/p1-10%20(551).pdf

http://thejns.org/doi/pdf/10.3171/2012.7.GKS12783

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: mk on March 18, 2014, 07:37:17 pm

I would easily count at least 5-6 forum members (including myself) during the years that I have been following the forum, plus a few others outside the forum.

Marianna

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: Trish G on March 20, 2014, 08:53:51 pm

I just had an appointment with my neurosurgeon this week and asked him how many tumors continue to grow after FRS  He said 3- 5  %.

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: PaulW on March 21, 2014, 12:33:33 am

The statistics vary depending on a number of things.
Small VS's under 1.0cm have around 99% success rate

Tumours that grow quickly, tumours larger than 2.5cm
Tumours that have regrown after surgery, people with NF-2
All these are factors with poorer success rates.
Have a few factors together and failure rates could be 20%

It should be noted that a large percentage of radiation failures 10-15+ years ago can be attributed to less accurate targeting of the tumour and incomplete tumour coverage.

Please check these statistics. Its all hiding at this website

www.pubmed.com   

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: sandyinwisconsin on March 22, 2014, 04:48:18 pm

Thanks everyone : )

Trish, I think you had the same treatment as me.  Do you mind sending me a PM at

sandyinwisconsin.  I'm not able to send you one. 

Sandy

Title: Re: HOW COMMON IS FAILED RADIATION?
Post by: joanna_an on March 23, 2014, 07:21:21 pm

Quote from: PaulW on March 21, 2014, 12:33:33 am

The statistics vary depending on a number of things.
Small VS's under 1.0cm have around 99% success rate

Tumours that grow quickly, tumours larger than 2.5cm
Tumours that have regrown after surgery, people with NF-2
All these are factors with poorer success rates.
Have a few factors together and failure rates could be 20%

It should be noted that a large percentage of radiation failures 10-15+ years ago can be attributed to less accurate targeting of the tumour and incomplete tumour coverage.

Please check these statistics. Its all hiding at this website

www.pubmed.com

Paul, can you find me an article that says that fast growing tumors are more likely to fail radiation treatment? Mine grew 4mm in 4 months so it's growing faster than it normally should, but my radiation oncologists gave me 95% success rate and they didn't mention my "fast" growing tumor as an issue at all.. I was actually researching this myself cause I thought it could be an issue, but I couldn't find anything relating fast growing tumors to failed radiation treatment..