The therapeutic value of ambulatory extracorporeal shockwave lithotripsy of salivary calculi. Results of a prospective study

Laryngo- rhino- otologie
K H HesslingE P Allhoff

Abstract

In a prospective study, results of the extracorporeal shock wave lithotripsy of salivary stones were evaluated. The study was performed with the currently available technical possibilities of electromagnetic systems to get indication criteria for this procedure. Using the Modulith SL 20-lithotripter of Storz Medical AG, 33 concrements in 25 patients were treated in 89 lithotripsy sections. The stone sizes, localized by ultrasound, ranged from 3 to 13 mm diameter (phi 6.9 mm). After application of local anaesthesia, per session on an average 1300 shock waves with raising energy levels were applied, the succession of shocks fixed to 1 MHz. With the help of ultrasound localisation, a therapeutic success with complete emission of the concrement or an adequate disintegration of these stones could be achieved in 82% of the parotid gland stones (n = 11) and in 14% of the submandibular gland stones (n = 22). Since the unhampered functioning of these salivary glands is an inevitable pre-condition for the spontaneous emission of the disintegrated fragments, the status of function of salivary glands should be established by a scintigraphy before performing the ESWL. Even though complete emission of the stone could be achieved in only 4 pa...Continue Reading

Citations

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