Factors influencing the outcome of extracorporeal shock wave lithotripsy in the management of salivary calculi

The Laryngoscope
M P EscudierM McGurk

Abstract

To identify the factors that affect outcome (stone clearance, partial clearance without symptoms, and residual stone with symptoms unchanged) of extracorporeal shock wave lithotripsy (ESWL). To develop and validate a predictive model for outcome of treatment. Prospective controlled trial. There were 142 salivary calculi (78 submandibular, 64 parotid) entered into a prospective clinical trial of ESWL. The results were analyzed and a predictive model generated, which was validated using a second group of patients treated by the same technique. ESWL achieved complete success (stone and symptom free) in 67 (47.15%) of cases (submandibular 28/78, 35.9%; parotid 39/64, 60.9%). Partial success (residual stone and symptom free) was obtained in a further 49 (34.5%) (submandibular 29/78, 37.2%; parotid 20/64, 31.3%). Failure occurred in 26 (18.3%) of cases (submandibular 21/78, 26.9%; parotid 5/64, 7.8%). ESWL can eradicate salivary calculi but its effectiveness is dependant mainly on size of the stone. Using a regression analysis model stone clearance can be reliably predicted based on stone size. A less important factor is the radiodensity of the stone, whereas a greater proportion of parotid calculi are eliminated by ESWL than submand...Continue Reading

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Citations

Dec 3, 2014·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Pasquale CapaccioPignataro Lorenzo
Jul 23, 2013·Auris, Nasus, Larynx·Jan Christoffer LuersDirk Beutner
Feb 27, 2016·The British Journal of Oral & Maxillofacial Surgery·Meera SamaniMark McGurk
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Jul 4, 2012·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Johannes ZenkHeinrich Iro
Dec 27, 2018·The Laryngoscope·Pasquale CapaccioLorenzo Pignataro
Oct 10, 2018·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Michael KochHeinrich Iro
Feb 5, 2019·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Pedro NolascoPatrícia A Carvalho
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Oct 1, 2020·Lasers in Surgery and Medicine·Michael KochHeinrich Iro
Oct 13, 2021·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Michael KochHeinrich Iro

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