American journal of veterinary research · 2026
Surgical management of cricopharyngeal achalasia in dogs results in low mortality but moderate incidence of recurrence or persistent clinical signs.
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Zhang Rey M, Brisson Brigitte A, Holt David E, Park Brian, Ham Kathleen M, Hawker William
Аннотация
OBJECTIVE: To describe diagnostic and surgical management of cricopharyngeal achalasia (CA) in dogs and to identify patient or management factors that may contribute to postoperative outcomes.
METHODS: Signalment, diagnostic imaging findings, surgical information, complications, and outcomes were retrospectively obtained. Fisher exact and Wilcoxon rank-sum tests were performed to identify predictors of unsatisfactory outcomes using sex, breed, age, videofluoroscopic swallow study findings, laterality of surgery, and muscles resected as variables.
RESULTS: 26 dogs surgically managed for CA from 2009 through 2025 were included. The most common breeds were Poodle mixes (n = 12) and Golden Retrievers (8). Ventral bilateral surgery resulted in shorter operative times than through 2 lateral incisions. Postoperative complication and mortality rates were 23% and 11.5%, respectively. Aspiration pneumonia was the most common postoperative complication. Unsatisfactory outcomes were reported in 42.3%. Recurrence of clinical signs after initial resolution was noted in 34.6%, and revision surgery was performed in 26.9%. Median time to recurrence was 84 days (range, 7 to 1,320 days). No significant association was identified for age, sex, breed, laterality, videofluoroscopic swallow study findings, or muscles resected.
CONCLUSIONS: Surgical management of CA resulted in low mortality, moderate incidence of recurrence and revision surgery, and residual symptoms requiring long-term conservative management.
CLINICAL RELEVANCE: Surgery is a safe option for management of CA, but owners should be informed of the risks of recurrence and residual clinical signs that may require long-term dietary modifications. Animals with CA are at risk of aspiration pneumonia both pre- and postoperatively and should be monitored accordingly.
METHODS: Signalment, diagnostic imaging findings, surgical information, complications, and outcomes were retrospectively obtained. Fisher exact and Wilcoxon rank-sum tests were performed to identify predictors of unsatisfactory outcomes using sex, breed, age, videofluoroscopic swallow study findings, laterality of surgery, and muscles resected as variables.
RESULTS: 26 dogs surgically managed for CA from 2009 through 2025 were included. The most common breeds were Poodle mixes (n = 12) and Golden Retrievers (8). Ventral bilateral surgery resulted in shorter operative times than through 2 lateral incisions. Postoperative complication and mortality rates were 23% and 11.5%, respectively. Aspiration pneumonia was the most common postoperative complication. Unsatisfactory outcomes were reported in 42.3%. Recurrence of clinical signs after initial resolution was noted in 34.6%, and revision surgery was performed in 26.9%. Median time to recurrence was 84 days (range, 7 to 1,320 days). No significant association was identified for age, sex, breed, laterality, videofluoroscopic swallow study findings, or muscles resected.
CONCLUSIONS: Surgical management of CA resulted in low mortality, moderate incidence of recurrence and revision surgery, and residual symptoms requiring long-term conservative management.
CLINICAL RELEVANCE: Surgery is a safe option for management of CA, but owners should be informed of the risks of recurrence and residual clinical signs that may require long-term dietary modifications. Animals with CA are at risk of aspiration pneumonia both pre- and postoperatively and should be monitored accordingly.