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Histologic and ultrastructural features of explanted Arenberg shunts


, : Histologic and ultrastructural features of explanted Arenberg shunts. Archives of Otolaryngology--Head & Neck Surgery 120(3): 326-332

Four Arenberg endolymphatic shunts that had been implanted in patients for 6 years, 3 years, 24 months, and 11 months were removed during retrolabyrinthine nerve sections (two cases), labyrinthectomy (one case), or cochlear implant (one case). The shunts were examined and photographed grossly and the components were prepared for light and scanning electron microscopy. Acellular debris filled the vestibule around the valve in all cases. The same material filled the inside of the valve in two cases and could be seen coming through the valve in two cases. Two shunts had ingrowth of fibrous tissue into the sponge. The finding of greatest concern was multiple erosions seen in the Supramid tube (S. Jackson Inc, Alexandria, Va) that inserts into the endolymphatic sac. On scanning electron microscopy, these erosions appeared as a network of cracks in the outer surface of the tube. The two shunts implanted for the longest time had fenestrae completely through the tube wall. These findings question the long-term functioning and integrity of the Arenberg shunt.

US$19.90

PMID: 8123243

DOI: 10.1001/archotol.1994.01880270072012


Other references

Bush L.J.; Netemeyer D.T.; Adams G.D., 1979: Reconstituted sorghum grain for lactating dairy cows. Rations containing finely ground air-dry and reconstituted (70% dry matter) sorghum grain were compared in a switchback trial with 21 lactating dairy cows. Feed consumption was ad lib with the restriction that grain concentrates comprise no more t...

Fevrier, R., 1952: Food behaviour in pigs. Eight groups of pigs weighing between 40 and 85 kg., accustomed to a standard ration, had their diet suddenly changed to another of similar composition but prepared from different materials. Feed consumption was estimated for 4 days after the chan...

Kokhanenko, N.Iu.; Savrasov, V.M., 2002: Specific features of pancreatoduodenal resection in cancer of the head and unciform process of the pancreas. Pancreato-duodenal resections (PDR) were made in 134 patients with cancer of the pancreas, in 31 (23.1%) of them the tumor was localized in the unciform process of the pancreas. In 7 patients the destructive pancreatitis which complicated cancer P...

Schaaf, P.; Geyer, G., 1969: Ultrahistochemical demonstration of periodate-reactive secretory substances in mouse Paneth cell granules. Acta Histochemica 34(2): 229-237

McArthur, Stuart., 2004: Hospitalisation. Unknown

Nadal, E.D.; Fadden, R.; Ruiz, A.H.ystead, T.A.ino, J., 2001: A role for the Ppz Ser. Journal of biological chemistry 276(18): 14829-14834

Müller-Hülsbeck, S., 2008: Long-term results after fibroid embolization. Fibroids (leiomyoma) are the most frequent benign tumors of the uterus during female reproductive age. In the case of clinical symptoms, uterine artery embolization (UAE) is a well established treatment option for symptomatic fibroids, resulting i...

Ateya, A.Mohamed.; Sabri, N.Ali.; El Hakim, I.; Shaheen, S.M., 2017: Effect of Omega-3 Fatty Acids on Serum Lipid Profile and Oxidative Stress in Pediatric Patients on Regular Hemodialysis: A Randomized Placebo-Controlled Study. We sought to evaluate the effects of omega-3 fatty acids supplementation on serum lipid profile and oxidative stress markers in pediatric patients with end-stage renal disease on regular hemodialysis (HD). This study was a double-blinded, randomiz...

Buckner, C.D.; Clift, R.A.; Appelbaum, F.R.; Storb, R.; Fefer, A.; Petersen, F.B.; Sanders, J.E.; Sullivan, K.; Thomas, E.D.; Hansen, J.A., 1991: Effects of treatment regimens on post marrow transplant relapse. Seminars in Hematology 28(3 Suppl 4): 32-34

Nihashi, S.; Ohshima, K.I.; Tamura, T.; Fukamachi, Y.; Saitoh, S.-ichi, 2009: Thickness and production of sea ice in the Okhotsk Sea coastal polynyas from AMSR-E. From comparisons with thickness of sea ice from Advanced Very High Resolution Radiometer (AVHRR) and ice-profiling sonar data we have developed an Advanced Microwave Scanning Radiometer-EOS (AMSR-E) thin ice thickness algorithm for the Sea of Okho...