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Piezoelectric lithotripsy was undertaken on 19 patients with salivary stones, with none of these patients requiring anesthesia, analgetics, or sedatives. All salivary stones were totally fragmented during first lithotripsy. Four months after treatment with extracorporeal shock waves, all patients were free of symptoms and, in 11 of the patients, no calculi could be found sonographically. The piezoelectric lithotripsy of salivary stones caused no serious side effects which could be proven by clinical, biochemical, sonographic, and magnetic resonance imaging (MRI) examinations. Extracorporeal piezoelectric lithotripsy is a new and promising nonsurgical therapy for selected cases of sialolithiasis of the parotid and submandibular glands.

18 patients presenting a circumscribed cerebrospinal fluid (CSF-) leak in the region of the ethmoidal roof, the olfactory cleft or the sphenoidal sinus, were operated on via the endonasal route. Dural laceration could be attributed to paranasal sinus surgery (iatrogenic CSF-leak, N = 11) and to other traumas (N = 6). In one case, no obvious cause was detectable (spontaneous CSF-leak). Using the 70-degree angular optical device, the dural lacerations were closed by autogenous grafts of conchal mucosa with the help of fibrin glue. The average time of postoperative observation was 17 months. No liquorrhoea, meningitis or cerebral abscess was observed postoperatively.

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