What Researchers Did
Researchers retrospectively evaluated neutrophil/lymphocyte (N/L) and platelet/lymphocyte (P/L) ratios in 60 patients with sudden sensorineural hearing loss (SSNHL) compared to 30 healthy controls, also examining the impact of hyperbaric oxygen therapy.
What They Found
Neutrophil/lymphocyte and platelet/lymphocyte ratios were significantly higher in SSNHL patients at diagnosis compared to controls (p<0.05) and significantly decreased after treatment (p<0.05). While hyperbaric oxygen therapy lowered both ratios more than standard treatment, a statistically significant decrease was observed only in the neutrophil/lymphocyte ratio (p<0.05), and a higher P/L ratio was associated with lower recovery rates.
What This Means for Canadian Patients
These findings suggest that inflammatory and vascular markers like N/L and P/L ratios could potentially serve as prognostic indicators for sudden sensorineural hearing loss. Monitoring these ratios might help clinicians in Canada identify patients at higher risk for poorer recovery and guide treatment decisions, including the potential role of hyperbaric oxygen therapy.
Canadian Relevance
This study has no direct Canadian connection as it was conducted at a tertiary center outside of Canada.
Study Limitations
This was a retrospective study conducted at a single center with a relatively small sample size, which may limit the generalizability of the findings.