What Researchers Did
Researchers administered intra-arterial ATP infusions, often with glucose and hyaluronidase, to 267 patients with various inner ear disturbances, including sudden deafness, and also conducted animal experiments.
What They Found
Intra-arterial ATP infusions were successful in 267 patients with inner ear disturbances, particularly sudden deafness, showing good clinical results even in later-treated cases. The combination of ATP with hyperbaric oxygen was also successful in patients who previously showed no improvement. However, animal experiments using guinea pigs to model sudden deafness were unsuccessful due to differing patterns.
What This Means for Canadian Patients
This 1977 study suggests a potential, albeit unspecific, benefit of intra-arterial ATP infusions for inner ear disturbances like sudden deafness. However, given the age of the study and the specialized nature of the treatment, Canadian patients should consult current medical guidelines and specialists for evidence-based care.
Canadian Relevance
This study has no direct Canadian connection or specific relevance to the Canadian healthcare system.
Study Limitations
A key limitation is the inability to demonstrate an increase of ATP in cochlear cells after infusions, suggesting an unspecific mechanism for the observed clinical successes.