Extracorporeal Shockwave Lithotripsy of Salivary Gland Stones

Iro, Heinrich; Nitsche, N.; Schneider, H. T.; Ell, C.

doi:10.1016/s0140-6736(89)90365-6

Cited by 83 publications

(39 citation statements)

References 3 publications

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“…Salivary gland stones are said to affect 12 out of 1000 people (Iro et al 1992). The first report of extracorporeal shock wave application to a salivary stone appeared in 1989 (ko et al 1989).…”

Section: Salivary Stone Fragmentationmentioning

confidence: 99%

Medical applications and bioeffects of extracorporeal shock waves

Delius¹

1994

Shock Waves

163

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Abstract. Lithotripter shock waves are pressure pulses of microsecond duration with peak pressures of 35-120MPa fotlowed by a tensile wave. They are an established treatment modality for kidney and gallstone disease. Further applications are pancreatic and salivary stones, as well as delayed fracture healing. The latter are either on their way to become established treatments or are currently under investigation. Shock waves generate tissue damage as a side effect which has been extensively investigated in the kidney, the liver, and the gallbladder. The primary adverse effects are local destruction of blood vessels, bleedings, and formation of blood clots in vessels. Investigations on the mechanism of shock wave action revealed that lithotripters generate cavitation both in vitro and in vivo. An increase in tissue damage at higher pulse administration rates, and also at shock wave application with concomitant gas bubble injection suggested that cavitation is a major mechanism of tissue damage. Disturbances of the heart rhythm and excitation of nerves are further biological effects of shock waves; both are probably also mediated by cavitation. On the cellular level, shock waves induce damage to cell organelles; its extent is related to their energy density. They also cause a transient increase in membrane permeability which does not lead to celJ death. Administered either alone or in combination with drugs, shock waves have been shown to delay the growth of small animal tumors and even induce tumor remissions. While the role of cavitation in biological effects is widely accepted, the mechanism of stone fragmentation by shock waves is still controversial. Cavitation is detected around the stone and hyperbaric pressure suppresses fragmentation; yet major cracks are formed early before cavitation bubble collapse is observed. The latter has been regarded as evidence for a direct shock wave effect.

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Section: Salivary Stone Fragmentationmentioning

confidence: 99%

Medical applications and bioeffects of extracorporeal shock waves

Delius¹

1994

Shock Waves

163

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“…In general, 20-40% of salivary stones are radiolucent [15,22]. Other investigations including ultrasonography, sialography, CT scan and MRI may be necessary to localize a stone [5,6,13,19].…”

Section: Discussionmentioning

confidence: 99%

“…Generally, symptomatic stones are removed surgically. However, non-invasive techniques used in selected cases have included shock-wave lithotripsy and endoscopic laser lithotripsy [2,13,14]. Occasionally, spontaneous exfoliation of a stone through the ductal orifice may occur [24].…”

Section: Discussionmentioning

confidence: 99%

Sialolithiasis in children as a diagnostic dilemma

Karengera¹,

Yousefpour²,

Sadeghi³

et al. 2000

European Archives of Oto-Rhino-Laryngology

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Sialolithiasis is an uncommon disorder in childhood. Initially asymptomatic, symptoms may appear gradually. These can vary from moderate discomfort to severe pain with large glandular swelling accompanied by trismus. The correct interpretation of symptoms and a proper investigation for localization of salivary stones are important for effective treatment. A case of submandibular sialolithiasis in a 9-year-old girl is used to exemplify the problems had in clinical diagnosis.

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“…Although the patient can function without one of the glands it is involved with decreased secretion of saliva which creates dry mouth and potentially more dental caries. Extracorporeal shockwave lithotripsy is also used for treatment [7]. This technique requires several sessions at intervals of a few weeks.…”

Section: Introductionmentioning

confidence: 99%