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Related Concept Videos

Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
Antihypertensive Drugs: Action of Diuretics01:16

Antihypertensive Drugs: Action of Diuretics

Diuretics are antihypertensive drugs used to treat hypertension resulting from sodium and water retention. Sodium, vital for fluid balance and nerve or muscle function, is regulated by the kidneys through millions of nephrons. Blood enters nephrons via afferent arterioles, which branch into capillaries called glomeruli. These filter blood plasma, allowing water and solutes, like sodium ions, to pass through capillary walls into Bowman's capsule. The filtrate then flows through various tubules...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant01:25

Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant

In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
Antihypertensive Drugs: Thiazide-Class Diuretics01:15

Antihypertensive Drugs: Thiazide-Class Diuretics

Thiazide diuretics are sulfonamide derivatives featuring a benzothiadiazine ring system in their molecular structure. Based on this structure, thiazide diuretics can be categorized into two groups: thiazide-type and thiazide-like diuretics. Thiazide-type diuretics, including hydrochlorothiazide and chlorothiazide, consist of a benzothiadiazine backbone with an attached sulfonamide group. Thiazide-like diuretics, such as chlorthalidone and indapamide, lack the thiazide ring but demonstrate...

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Bedside Ultrasound for Guiding Fluid Removal in Patients with Pulmonary Edema: The Reverse-FALLS Protocol
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[Resistance to loop diuretics in clinical practice].

Niels Gobin1, Lionel Coltamai, Michel Burnier

  • 1Service de néphrologie et consultation d'hypertension, Département de médecine interne, CHUV, 1011 Lausanne.

Revue Medicale Suisse
|March 30, 2010
PubMed
Summary
This summary is machine-generated.

Loop diuretics are common medications for hypervolemia and kidney failure. This review explores mechanisms of loop diuretic resistance and strategies to overcome it in clinical practice.

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Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
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Last Updated: Jun 14, 2026

Bedside Ultrasound for Guiding Fluid Removal in Patients with Pulmonary Edema: The Reverse-FALLS Protocol
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Published on: July 28, 2018

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Published on: May 26, 2022

Area of Science:

  • Pharmacology
  • Nephrology
  • Internal Medicine

Context:

  • Loop diuretics are widely prescribed for fluid overload and chronic kidney disease.
  • Prolonged use can lead to diminished therapeutic efficacy, termed diuretic resistance.
  • Understanding resistance is crucial for effective patient management.

Purpose:

  • To review the primary mechanisms underlying loop diuretic resistance.
  • To outline clinical strategies for counteracting diuretic resistance.

Summary:

  • Diuretic resistance can stem from various physiological adaptations, including altered drug delivery, target site downregulation, and compensatory sodium retention.
  • Strategies to overcome resistance involve dose optimization, combination therapy with other diuretics, and addressing underlying causes of resistance.

Impact:

  • Improved clinical outcomes for patients experiencing loop diuretic resistance.
  • Enhanced understanding of diuretic pharmacodynamics and resistance mechanisms.
  • Guidance for clinicians in managing refractory fluid overload and renal impairment.