Peri-anal Fistulas
There are several methods being used to help dogs with this problem.
Please check the below resources:
www.geocities.com/Heartland/Pointe/1672/
Click on the Australian PF Report which is a study of the Azathioprine plus Metronidazole, plus Surgery. However, one of the researchers listed on this paper has told me that Cyclosporine probably works better than this method but it is more expensive.
http://sdnp.delhi.nic.in/resources/biodiv/subresources/whitecub.html
This is the SWAB METHOD of Cryotherapy.
www.Northwestanimalclinic.com/index2.ivnu
This vet is in New Mexico and uses the Cryotherapy plus Cyclosporine by mouth plus Cyclosporine topically. Do not know if his Cryotherapy is the swab method or some other method. He told me that he has treated many PF dogs with excellent results.
http://archsurg.ama-assn.org/issues/v135n2/abs/soa9059.html
The Fibrin Sealant method has not been used with PF dogs. It is in Phase II human trials for people with Anorectal Fistulae and has gotten good results. According to Dr. Cintron, M.D., he feels it should work for PF dogs and is interested in doing research with dogs.