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Intracorporeal electrokinetic lithotripsy: an advancement in minimally invasive management of parotid duct calculus

Published online by Cambridge University Press:  08 March 2017

P C Modayil ,
V Jacob ,
G Manjaly  and
G Watson
P C Modayil
Affiliation:
Department of Otorhinolaryngology, Eastbourne District General Hospital, East Grinstead, UK
V Jacob
Affiliation:
Department of Plastic Surgery, The Queen Victoria Hospital, East Grinstead, UK
G Manjaly*
Affiliation:
Department of Otorhinolaryngology, Eastbourne District General Hospital, East Grinstead, UK
G Watson
Affiliation:
Department of Urology, Eastbourne District General Hospital, East Grinstead, UK
*
Address for correspondence: Mr George Manjaly, ENT Consultant, Department of Otorhinolaryngology, Eastbourne District General Hospital, East Sussex BN21 2UD, UK. E-mail: [email protected]
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Abstract

Background:

Symptomatic salivary stones in the middle or proximal parotid duct have previously been treated by gland excision, which is associated with a 3–7 per cent risk to the facial nerve. Minimally invasive approaches to the management of salivary duct calculi have been devised over the past decade. Fluoroscopically guided basket retrieval, lithotripsy and intra-oral stone removal under general anaesthesia have found favour with most surgeons. Endoscopically controlled intracorporeal shock wave lithotripsy using the pneumoblastic lithotripter has been replaced by electrohydraulic lithotripsy (used in sialolith treatment).

Method:

The electrokinetic lithotripter is normally used for the treatment of lower ureteric stones, and has the benefit of minimal concomitant tissue damage. We have extended its use to the treatment of parotid duct calculi. We present initial results for its use in the treatment of a proximal parotid duct stone.

Result:

Application of the shock wave to the stone under direct vision avoided injury to the duct or to any local structure. The patient made an uneventful recovery and was asymptomatic after 18 months' follow up.

Conclusion:

Continuous, endoscopically monitored electrokinetic lithotripsy with good irrigation gives a well illuminated field and absolute delivery of energy to the target. It avoids the side effects caused by impact of the shock wave on the parotid duct and adjacent anatomical structures, thereby making it a safer procedure.

Keywords

Salivary CalculiParotid GlandLithotripsy
Type
Clinical Record
Information
The Journal of Laryngology & Otology , Volume 122 , Issue 4 , April 2008 , pp. 428 - 431
Copyright
Copyright © JLO (1984) Limited 2007

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