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  • Title: Endoluminal intervention in the salivary duct: clinical outcomes at a district general hospital.
    Author: Nagra I, Jones C, Dyer J.
    Journal: Cardiovasc Intervent Radiol; 2010 Apr; 33(2):307-14. PubMed ID: 19937028.
    Abstract:
    Our aim was to assess the preliminary clinical outcomes of interventional radiology for salivary duct obstruction in relation to salivary duct strictures or calculi. A retrospective analysis of consecutive patients referred for endoluminal procedures by ENT surgeons during a 4-year period were identified. The procedure was performed by a single interventional radiologist under fluoroscopic guidance using wire baskets and angioplasty balloons. Between June 2004 and October 2008, 50 sialoplasties were performed in 43 patients (30 female and 13 male). Twenty-six patients were prepared for 32 procedures for extraction of calculi (13 submandibular and 13 parotid), and 17 patients had 18 procedures for strictures (16 parotid and 1 submandibular). One patient in the group with calculi was judged unsuitable for intervention because the stone had migrated outside the salivary duct. Information was collected regarding the clinical indication; duration and type of symptoms; technical factors; follow-up; and success or failure of reintervention. Complete stone removal was achieved in 18 of the 26 patients (69%), with success on the first attempt in 14 patients (54%). Redo procedures were required in 4 patients (15%), with subsequent complete clearance of calculi. In this cohort, 20 patients were symptomatically improved (77%). Of the 6 patients (26%) with continuing symptoms, 2 patients had mild symptoms; two had moderate symptoms; and two patients opted to have surgery for unremitting symptoms. In the stricture group, 18 procedures were performed in 17 patients, with a successful outcome in 16 patients after the initial sialoplasty. Only 1 patient required repeat intervention (6%) and later opted to have surgery for continuing symptoms. In this group, 14 patients (82%) were symptomatically improved, and 3 remained symptomatic despite a good immediate result due to restenosis. Two patients experienced early complications: One had a transient facial nerve palsy, and the other had sialadenitis treated with antibiotics. Preliminary results suggest that symptom resolution at first intervention is higher in patients with acalculous strictures. Patients with calculi are more likely to require a repeat procedure for complete clearance.
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