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Related Concept Videos

Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

86
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
86
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

84
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
84
Renal Drug Excretion: Tubular Reabsorption01:25

Renal Drug Excretion: Tubular Reabsorption

166
Tubular reabsorption, a process occurring post-glomerular filtration of drugs in the renal tubule, is a critical determinant of drug half-life. During the process of renal excretion, as the glomerular filtrate progresses to the distal convoluted tubule (DCT), drugs that are highly permeable, lipophilic, and nonionized undergo passive reabsorption from the tubular fluid into the surrounding peritubular capillaries. This reabsorption process restricts their elimination through the kidneys. This...
166
Renal Drug Excretion: Overview01:15

Renal Drug Excretion: Overview

148
As primary excretory organs, the kidneys maintain homeostasis by removing waste substances from the bloodstream. They comprise over a million units called nephrons, which serve as the kidney's functional units.
A nephron consists of two primary structures: the renal corpuscle and the renal tubule. The renal corpuscle contains the glomerulus, a network of capillaries where the first step of renal excretion, glomerular filtration, occurs. Blood pressure forces water, ions, and small molecules...
148
Renal Drug Clearance: Comparison Between Renal Excretion Methods01:08

Renal Drug Clearance: Comparison Between Renal Excretion Methods

126
Renal clearance is a critical parameter encompassing kidney filtration, secretion, and reabsorption processes. It is calculated using a specific equation to determine the rate at which the kidneys clear a drug.
Renal clearance is often associated with the renal glomerular filtration rate (GFR), which represents the rate at which plasma is filtered through the glomeruli in the kidney. When drug reabsorption is minimal and there is no active secretion, renal clearance is closely related to the...
126
Renal Clearance01:23

Renal Clearance

896
The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
896

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Related Experiment Video

Updated: Jun 25, 2025

5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats
05:34

5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats

Published on: April 4, 2025

551

Residual Renal Function: A Double-Edged Sword.

Sandra Karanović Štambuk1,2, Margareta Fištrek-Prlić1, Bojan Jelaković1,2

  • 1Division of Nephrology, Arterial Hypertension, Dialysis and Transplantation, Department of Internal Medicine, University Hospital Zagreb, Zagreb, Croatia.

Kidney & Blood Pressure Research
|May 22, 2024
PubMed
Summary

Pharmacologic nephrectomy effectively reduces cardiovascular risk in patients with refractory nephrotic syndrome and end-stage kidney disease. This non-invasive treatment can make patients eligible for kidney transplantation.

Keywords:
Cardiovascular riskNephrotic syndromePharmacologic nephrectomyResidual renal function

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Area of Science:

  • Nephrology
  • Cardiovascular Medicine

Background:

  • Refractory nephrotic syndrome can persist in end-stage kidney disease, leading to complications like dyslipidemia, thrombosis, and elevated cardiovascular risk.
  • Treatment options for refractory nephrotic syndrome include surgical bilateral nephrectomy, renal artery embolization, and pharmacologic nephrectomy.

Observation:

  • A case of a hemodialysis patient with refractory nephrotic syndrome who underwent pharmacologic nephrectomy is presented.
  • The patient had persistent nephrotic syndrome despite end-stage kidney disease.

Findings:

  • Pharmacologic nephrectomy significantly decreased the patient's cardiovascular risk.
  • Following the procedure, the patient became a candidate for kidney transplantation.

Implications:

  • Residual renal function can be detrimental in specific cases of nephrotic syndrome, warranting consideration for nephrectomy.
  • Pharmacologic nephrectomy offers a non-invasive alternative with minimal complications for managing refractory nephrotic syndrome.