The Safety of Videofluoroscopic Swallowing Study (VFSS)

ABSTRACT

OBJECTIVE: The risk of barium aspiration has been reported through animal and clinical studies. Although the barium aspiration occurs frequently during videofluoroscopic barium swallowing study (VFSS) that is used in a standard method for diagnosis of dysphagia, there has been no research about the risk of VFSS. METHOD: One hundred VFSS of sixty nine patients were analyzed prospectively. The patients were diagnosed to dysphagia clinically. VFSS findings were classified into 5 groups according to the severity of aspiration. The incidences of complications, such as fever (>38.3oC), leukocytosis (>10,000), dyspnea and abnormality of chest roentgenogram within 24hours after VFSS were determined in each group. Odds ratios of complications after VFSS for severity of their findings were calculated. RESULTS: The complications of VFSS are as follows; five febrile conditions, three leukocytosis and three dyspnea among 100 VFSS cases. Odds ratios for complications were over 1 except for the abnormality of chest roentgenogram, but which was not statistically significant. CONCLUSION: The incidence of complication after VFSS was 5% in dysphagic patients. But the severity of complication was mild and there was no statistical significance between complication and aspiration on VFSS, so VFSS was a relatively safe procedure.