Related Experiment Video
Updated: Aug 12, 2026
07:11
Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis
Published on: July 19, 2018
Vancomycin absorption from the peritoneal cavity during dialysis-related peritonitis
1Department of Medicine, University of Mississippi Medical Center, Jackson 39216-4505.
Summary
Peritonitis significantly enhances vancomycin uptake from the peritoneal cavity in patients undergoing dialysis. This increased absorption during infection may impact antibiotic dosing strategies.
Area of Science:
- Nephrology
- Infectious Diseases
- Pharmacokinetics
Background:
- Peritonitis is a common complication in patients undergoing peritoneal dialysis.
- Understanding antibiotic pharmacokinetics during peritonitis is crucial for effective treatment.
- Vancomycin is frequently used to treat Gram-positive bacterial peritonitis.
Purpose of the Study:
- To compare vancomycin uptake from the peritoneal cavity in patients with and without peritonitis.
- To determine if peritonitis influences the absorption of vancomycin into the bloodstream.
Main Methods:
- A comparative study involving 14 patients, with 7 having dialysis-related peritonitis.
- Patients received vancomycin (37.5 mg/L) in dialysate for 4-hour dwells after initial exchanges.
- Vancomycin concentrations in serum and peritoneal fluid were measured over time.
Main Results:
- After 180 minutes, 61% of vancomycin remained in controls versus 30% in peritonitis patients.
- Serum vancomycin concentrations on day 4 were comparable between groups (13.4 mg/L vs 15.5 mg/L).
- A statistically significant difference (p<0.05) in vancomycin retention was observed.
Conclusions:
- Vancomycin uptake from the peritoneal cavity is significantly enhanced during acute peritonitis.
- Peritonitis increases the rate of vancomycin absorption, potentially affecting required dosages.
- Further research may be needed to adjust vancomycin dosing in dialysis patients with peritonitis.
Related Concept Videos
01:15Drug Elimination by Renal Route: Tubular Secretion
Once the process of glomerular filtration is completed, blood carrying unfiltered drug molecules traverses through efferent arterioles and makes its way into the peritubular capillaries in the proximal tubule. A variety of carriers play a pivotal role in actively secreting drugs from these peritubular capillaries into the tubular fluid. The organic anion transporter transfers acidic drugs, against an electrochemical gradient, from the peritubular capillaries into the renal tubule cells and...
01:20Estimation of k and VD of Aminoglycosides
Aminoglycosides are a class of antibiotics used to treat various bacterial infections. Clinicians must determine the elimination rate constant (k) and volume of distribution (VD) to optimize therapeutic efficacy and minimize toxicity. The k value represents the rate at which the drug is removed from the body, and the VD reflects the degree to which the drug distributes into body tissues. Accurately estimating these parameters allows healthcare professionals to tailor drug dosing to individual...
01:30Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis
Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
01:30Peritoneal Dialysis I: Introduction and Procedure
Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
01:25Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications
Peritoneal dialysis (PD) is a medical process that removes waste products and excess fluid from the body using the peritoneal membrane as a natural filter.Peritoneal Dialysis MethodsSeveral methods can be used for peritoneal dialysis, including Acute Intermittent Peritoneal Dialysis, Continuous Ambulatory Peritoneal Dialysis, and Automated Peritoneal Dialysis, also known as Continuous Cyclic Peritoneal Dialysis.Acute Intermittent Peritoneal Dialysis (AIPD) is used for patients with uremic...
01:25Peritoneal Dialysis III: Nursing Management
Peritoneal dialysis, or PD, utilizes the peritoneal membrane as a filter to eliminate excess fluid and waste products. Effective nursing management is essential for ensuring patient safety, preventing complications, and promoting optimal function of the peritoneal dialysis process.Assessment and MonitoringNurses must thoroughly assess the patient before, during, and after each dialysis session. Regular monitoring includes vital signs, daily weight, fluid intake and output, and laboratory values...