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Related Experiment Videos

Irrigating fluid absorption during percutaneous nephrolithotripsy.

H Gehring1, W Nahm, K Zimmermann

  • 1Department of Anaesthesiology, Medical University, Luebeck, Germany.

Acta Anaesthesiologica Scandinavica
|March 19, 1999
PubMed
Summary
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Monitoring blood ethanol concentration (BEC) during percutaneous nephrolithotripsy (PNL) can differentiate extravascular from intravascular absorption, predicting post-operative complications. Patients with extravasation experienced longer hospital stays and higher complication rates.

Area of Science:

  • Urology
  • Nephrology
  • Surgical Complications

Background:

  • Percutaneous nephrolithotripsy (PNL) commonly leads to irrigation fluid extravasation into the retroperitoneal space.
  • This extravasation increases the risk of urosepsis and complicated therapeutic courses.
  • Differentiating absorption types is crucial for predicting post-operative outcomes.

Purpose of the Study:

  • To demonstrate that extravascular absorption can be distinguished from intravascular absorption during PNL.
  • To show that these absorption characteristics can predict post-operative complications.

Main Methods:

  • A prospective study involving 31 PNL patients.
  • Ethanol was added to irrigating fluid; blood ethanol concentration (BEC) was measured via gas chromatography.

Related Experiment Videos

  • Patients were categorized into extravasation (EVA) and intravascular absorption (IVA) groups.

    • Main Results:

    • 19 patients were diagnosed with EVA and 12 with IVA.
    • Maximum BEC levels were reached significantly later in the EVA group (75 min) compared to the IVA group (20 min).
    • EVA patients required more opioids and had significantly longer hospitalizations.

    Conclusions:

    • Ethanol monitoring effectively identifies retroperitoneal extravasation during and after PNL.
    • Patients experiencing extravasation necessitate longer hospital stays, likely due to associated organ injury.
    • This method aids in predicting and managing PNL-related complications.