Evaluation of viscosities of typical drainage fluids to promote more evidence-based catheter size selection

Percutaneous drainage is a first-line therapy for abscesses and other fluid collections. However, experimental data on the viscosity of body fluids are scarce. This study analyses the apparent viscosity of serous, purulent and biliary fluids to provide reference data for the evaluation of drainage c...

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Bibliographic Details
Published in:Scientific reports 2023-12, Vol.13 (1), p.22178-22178, Article 22178
Main Authors: Celik, Erkan, Goertz, Lukas, Henze, Joern, Schütz, Markus, Mink, Ben, Brinkmann, Sebastian, Laasch, Hans-Ulrich, Schmidt, Annette M., Grüll, Holger, Maintz, David, Kloeckner, Roman, Lorenz, Florian, Pinto dos Santos, Daniel, Chon, Seung-Hun
Format: Article
Language:English
Subjects:
692/4020/1503/1328
692/4020/1503/1712/1714
692/699/255/1318
Abscess - therapy
Abscesses
Body fluids
Catheters
Drainage
Drainage - methods
Fluids
Humanities and Social Sciences
Humans
Kinematic viscosity
Kinematics
Medical instruments
multidisciplinary
Science
Science (multidisciplinary)
Surgical drains
Viscosity
Water
Wound drainage
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Summary:Percutaneous drainage is a first-line therapy for abscesses and other fluid collections. However, experimental data on the viscosity of body fluids are scarce. This study analyses the apparent viscosity of serous, purulent and biliary fluids to provide reference data for the evaluation of drainage catheters. Serous, purulent and biliary fluid samples were collected during routine drainage procedures. In a first setup, the apparent kinematic viscosity of 50 fluid samples was measured using an Ubbelohde viscometer. In a second setup, the apparent dynamic viscosity of 20 fluid samples obtained during CT-guided percutaneous drainage was measured using an in-house designed capillary extrusion experiment. The median apparent kinematic viscosity was 0.96 mm 2 /s (IQR 0.90–1.15 mm 2 /s) for serous samples, 0.98 mm 2 /s (IQR 0.97–0.99 mm 2 /s) for purulent samples and 2.77 mm 2 /s (IQR 1.75–3.70 mm 2 /s) for biliary samples. The median apparent dynamic viscosity was 1.63 mPa*s (IQR 1.27–2.09 mPa*s) for serous samples, 2.45 mPa*s (IQR 1.69–3.22 mPa*s) for purulent samples and 3.50 mPa*s (IQR 2.81–3.90 mPa*s) for biliary samples (all differences p  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-49160-8