Related Experiment Video
Updated: Aug 13, 2026

A Novel Approach for the Administration of Medications and Fluids in Emergency Scenarios and Settings
Published on: November 9, 2016
Treatment of catheter occlusion in pediatric patients
John A Kerner1, Manuel G Garcia-Careaga, Amy A Fisher
1Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Stanford University Medical Center, Stanford, California 94304, USA. jkerner@stanfordmed.org
Insights
Effective catheter occlusion management requires accurate assessment of thrombotic and nonthrombotic causes. Treatment varies, with positive-pressure devices showing promise for preventing future catheter occlusions.
Area of Science:
- Medical Devices
- Vascular Access
- Clinical Management
Background:
- Catheter occlusion is a common complication impacting patient care.
- Accurate diagnosis of occlusion causes is essential for effective treatment.
- Preventive strategies are crucial for maintaining central venous access device patency.
Purpose of the Study:
- To outline diagnostic and therapeutic strategies for catheter occlusion.
- To review current evidence on the prevention of catheter occlusion.
Main Methods:
- Assessment differentiating thrombotic from nonthrombotic causes.
- Treatment protocols based on identified occlusion etiology.
- Review of prophylactic measures and device innovations.
Main Results:
- Thrombotic occlusions treated with alteplase; nonthrombotic occlusions managed based on specific causes (e.g., ethanol for lipids, HCl for mineral/acidic drug precipitates, NaOH for basic drug precipitates).
- No conclusive evidence supports heparin flushes over saline.
- Positive-pressure devices demonstrate potential in reducing occlusion rates by preventing retrograde blood flow.
Conclusions:
- Initial assessment guides successful catheter occlusion management.
- Current prophylactic regimens lack strong scientific endorsement.
- Positive-pressure devices represent a promising approach to decrease catheter occlusion rates.
Abstract:
A proper initial assessment of catheter occlusion is the key to successful management. The assessment screens are for both thrombotic and nonthrombotic causes (including mechanical occlusion). If mechanical occlusion is excluded, thrombotic occlusion is treated with alteplase. Nonthrombotic occlusions are treated according to their primary etiologies: lipid occlusion is treated with 70% ethanol, mineral precipitates are treated with 0.1-N hydrochloric acid (HCl), drug precipitates are treated according to their pH-acidic drugs can be cleared with 0.1-N HCl, basic medications can be cleared with sodium bicarbonate or 0.1-N sodium hydroxide (NaOH). Prevention of occlusion of central venous access devices is also critical. To date, no data conclusively show heparin flushes to be superior to saline flushes. No prophylactic regimen, including low-dose warfarin, low-molecular-weight heparin, or 1 unit heparin/mL of parenteral nutrition has been endorsed by any major medical, nursing, or pharmacy group due to lack of scientific evidence. The most encouraging information on decreasing occlusion rate comes from experience with positive-pressure devices that attach to the hub of most catheter lumens and prevent retrograde blood flow and, consequently, decrease the risk of thrombus formation in the catheter lumen.
Related Concept Videos
Cardiac Catheterization IV: Nursing Management
Parentral Nutrition: Centeral and Peripheral Parental Nutrition
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
Suctioning the Oropharyngeal Airway
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...
Cardiac Catheterization I: Pre-Procedure Overview
Urinary Tract Calculi V: Nursing Management
Suctioning the Nasopharyngeal Airway
Equipment Required