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  • Title: [Usefulness of pilocarpine in the prevention of xerostomia in patients with head and neck cancer treated with radiotherapy. Assessment with gammagraphy and salivary flow].
    Author: Fuertes Cabero S, Setoain Perego X, Rovirosa Casino A, Mateos Fernández JJ, Fuster Pelfort D, Ferre Jorge J, Navalpotro Yagüe V, Paredes Barranco P, Ortín Pérez J, Muxí Pradas A, Pons Pons F.
    Journal: Rev Esp Med Nucl; 2004; 23(4):259-66. PubMed ID: 15207210.
    Abstract:
    AIM: To assess the utility of salivary gland scintigraphy and salivary flow to quantify salivary function and to evaluate the usefulness of pilocarpine in the treatment of radiation-induced xerestomia in head and neck cancer patients. METHOD: Thirty two patients with head and neck tumor treated with radiotherapy (RDT) were studied. Patients were classified into two groups: pilocarpine group (P), that received prophylactic pilocarpine before RDT and during the first year after treatment. No pilocarpine group (NP) that received RDT without pilocarpine. Salivary gland scintigraphy and salivary flow were performed before RDT and during one year after treatment. Parotid and submaxillary uptake and excretion were calculated. Salivary flow after stimulation during five minutes was also obtained. RESULTS: Uptake and excretion in both salivary glands decreased after RDT. There were no statistical differences comparing P and NP groups (p < 0.001). However, in group P a trend to recovery was observed in parotid uptake values at 12 months after treatment, but it was not statistically significant. In both groups the salivary flow decreased after RDT and a good correlation (r = 0.8) between salivary flow and submaxillary excretion and parotid excretion was found. CONCLUSIONS: Salivary gland scintigraphy and salivary flow could be useful to evaluate salivary gland function in patients with head and neck irradiated tumors. Although better results on the salivary uptake at 12 months were noted, pilocarpine did not significantly improve salivary gland function.
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