Late Followup of Dynamic Evaluation of Upper Urinary Tract Obstruction

Wolk, Frederick N.; Whitaker, Robert H.

doi:10.1016/s0022-5347(17)52919-5

Cited by 13 publications

(1 citation statement)

References 6 publications

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“…Two follow-up reports suggest that the test is reliable, but are not able to establish the conse quences of a positive or negative result of the test [3,4], Clinical practice and results might have been the same without the use of the pressure-flow test. No controlled study of the constancy of the pressure-flow relationship has ever been performed in clinical practice.…”

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confidence: 99%

The Constancy of the Relation between Pressure and Flow in the Upper Urinary Tract of the Pig

Krebs

Mortensen²

1990

Urol Int

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The long-term constancy of the pressure-flow relationship of the upper urinary tract of the pig was studied in 8 pyeloureteral units and the short-term constancy in 10 units. No constancy was found for neither pelvic baseline pressure nor for pelvic perfusion pressure with an interval of 10 weeks. Pelvic pressure is a very unstable parameter with time but variating within the normal range. Contrarily, a good constancy was found for both baseline and perfusion pressure when 3 consecutive pressure-flow procedures performed with an interval of 30 min were compared to each other. It is concluded that the short-term constancy of the pressure-flow relationship may allow in vivo investigations of the function – if any – of drugs upon the pyeloureter.

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confidence: 99%