[The nutritional-viral etiology of epidemic neuropathy. The Group for the Study of Epidemic Neuropathy]. / Etiología nutro-viral de la neuropatía epidémica. Grupo para el estudio de la neuropatía epidémica.

Viral sequences of the cerebrospinal fluid were amplified by using oligonucleotides that are homologous to region 5' of the Enteroviruses. The results showed a great variability in the amplified sequences, suggesting the presence of enteroviral quasispecies with altered biological properties in the stressed individuals that may play an important role in the neurological damage.

Rupture and migration of the venous segment of LeVeen shunt: an unreported complication.

The LeVeen peritoneovenous shunt has been used for nearly 20 yr in the treatment of refractory ascites due to liver cirrhosis. However, the technique encompasses a high incidence of serious complications. We report the case of a 59-yr-old man presenting with right pulmonary artery embolization caused by ruptured venous segment of a LeVeen shunt. After localizing it arteriographically, we were able to satisfactorily remove the segment by tying it up with a catheter introduced through the femoral vein.