Sperm function and structure and seminal plasma prostanoid concentrations in men with IDDM. Diabetes Care 1989;12:742-4. 67 Badenoch DF, Evans SJW', McCloskey DJ. Sperm density measurement:should this be abandoned? Br] Urol 1989;64:521-3.68 Pol PS. Beuscart R, Leroy-Martin B, Hermand E, Jablonski W. Circannual rhythm of sperm parameters of fertile men. Fertil Steril 1989;51:1030-3. 74 Osterlind A. Diverging trends in incidence and mortality of testicular cancer in Denniark, 1943-1982. Br7 Cancer 198653:501-5. 75 Brown LM, Pottern LM, Hoover RN, Devesa SS, Aselton P, Flannery JT.Testicular cancer in the United States: trends in incidence and mortality. IntJEpidemiol 1986;15:164-70. 76 Hakulinen T, Andersen AA, Malker B, Pukkala E, Schou G, Tulinius H.Trends in cancer incidence in the Nordic countries. APMIS 1986;suppl 288.

SUMMARY:We describe a rare case of a de novo cerebral arteriovenous malformation (AVM) in a 9-year-old girl. MR imaging at 6 years of age demonstrated band heterotopia. Follow-up MR imaging 3 years later demonstrated a new 3.5-cm AVM in the left parietol-occipital region, confirmed by conventional angiography. This report, along with limited previous reports, suggests that AVMs can be acquired lesions and that AVM development is a dynamic process extending into the postnatal period.

Physician oversight leads to poor IVC filter retrieval rates. Retrievals can be challenging or fail when the dwell time is >50 days and >90 days, respectively, and when the filter hook apposes the caval wall. Filter tilt increases retrieval difficulty but not failure rates.

A method was developed to standardize the induction of seizure activity during enflurane anaesthesia in cats. The effects of nitrous oxide on the epileptogenic property of enflurane were investigated. A potent anticonvulsant action of nitrous oxide was noted, but partial tolerance to this effect rapidly developed. Some evidence of withdrawal hyperexcitability was also detected. The changes induced by nitrous oxide, despite existing enflurane anaesthesia, suggest that these two anaesthetic agents have different sites or mechanisms of actions.

The nature of the epileptoid state produced by enflurane was examined in the concentration range 2-5% in cats. A biphasic pattern in the convulsant property was revealed. The ease of induction of seizure by repetitive peripheral stimulation, the duration of seizures, and the activation of reticular neuronal firing during seizure activity showed peak values between 3 and 4%, whereas the values were significantly lower both above and below this range. The amplitudes of the somato-sensory evoked potential also showed a biphasic pattern which correlated well with the severity of the epileptoid state as judged by the aforementioned indices. These findings, when compared with evidence on the actions of other convulsant drugs, and with the known depressant actions of enflurane, suggest a combination of depressant and convulsant properties, the balance of which varies depending on the depth of anaesthesia.

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The case of a 12-year-old girl who suffered a severe intracranial bleed secondary to a large arteriovenous malformation (AVM) is described. Following investigation the appropriate treatment was considered to be embolization of the AVM, under general anaesthesia, using N-butyl cyanoacrylate (NBCA). During the procedure acute desaturation and pulmonary oedema occurred secondary to accidental pulmonary embolization with NBCA. The management of the procedure and subsequent clinical course is reported and available literature reviewed.