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  • Australia east coast  (1)
  • Key words: Gastroesophageal reflux disease — Gastroplasty — Manometry — Preoperative testing — Short esophagus — Stricture  (1)
  • 1
    ISSN: 1432-2218
    Keywords: Key words: Gastroesophageal reflux disease — Gastroplasty — Manometry — Preoperative testing — Short esophagus — Stricture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Esophageal shortening is a known complication of advanced gastroesophageal reflux disease that may preclude a tension-free antireflux procedure. A retrospective analysis was performed to test the accuracy of preoperative testing. Methods: From September 1993 to December 1998, 39 patients underwent esophageal mobilization with intraoperative length assessment. Patients were selected on the basis of irreducible hiatal hernia, stricture formation, or both. Patients in the upright position with a fixed hiatal hernia larger than 5 cm on an esophagram were considered to have a short esophagus. Manometric length two standard deviations below the mean for height was considered abnormally short. Results: In 31 patients, intraoperative mobilization was sufficient to allow the gastroesophageal junction to lie 2 cm below the diaphragmatic crus, so no esophageal-lengthening procedure was required. Eight patients with a short esophagus required an esophageal-lengthening procedure after complete mobilization. Two patients subsequently underwent intrathoracic migration of the gastroesophageal junction (GEJ), with recurrence of symptoms and required gastroplasty during the second surgery. An esophagram had a sensitivity of 66% and a positive predictive value of 37%, whereas manometric length had a sensitivity of 43% and a positive predictive value of 25% for the diagnosis of short esophagus. The preoperative endoscopic finding of either a stricture or Barrett's esophagus was the most sensitive test for predicting the need for a lengthening procedure. Conclusions: Manometry and esophagraphy are not reliable predictors of the short esophagus. Additional tests and/or tests combined with other parameters are needed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 223 (1991), S. 119-126 
    ISSN: 1573-5117
    Keywords: amphipods ; crustaceans ; sandy beaches ; population ecology ; Australia east coast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Spatial and temporal patterns of abundance of two species of exoedicerotid amphipod at several sandy beaches near Sydney, Australia are described and related to physicochemical factors. Replicate cores were taken at monthly intervals for one year from the swash zone and data were analysed by two-way (site × month), fixed-factor analysis of variance. Spatial and temporal differences in abundance were usually significant but inconsistent because of significant site × month interactions. Spatial differences in Exoediceroides maculosus sometimes occurred in the absence of obvious corresponding physicochemical differences although the density of stranded seagrass and algae may affect abundance. The abundance of Exoediceros fossor was often greater in lagoons than open beaches. Salinity, temperature and storms had no apparent effect on the temporal patterns of abundance of either species.
    Type of Medium: Electronic Resource
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