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Related Concept Videos

Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

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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...
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Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

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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...
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Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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Hypertension and Regulation of Blood Pressure01:18

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Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
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Antihypertensive Drugs: Action of Diuretics01:16

Antihypertensive Drugs: Action of Diuretics

694
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...
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Pathophysiology of Heart Failure01:17

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Assessment of Vascular Function in Patients With Chronic Kidney Disease
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Kidney Function in Hypertensive Patients with Left Ventricular Hypertrophy.

I N Mba1, B Basil2, B Myke-Mbata2

  • 1Department of Chemical Pathology, Nile University of Nigeria, Abuja, Nigeria.

West African Journal of Medicine
|February 27, 2024
PubMed
Summary

Hypertensive patients with left ventricular hypertrophy (LVH) showed better kidney function, indicated by lower microalbuminuria and reduced chronic kidney disease (CKD) stages, compared to those without LVH.

Keywords:
Chronic kidney diseaseHypertensiveKidney functionLeft ventricular hypertrophy

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Area of Science:

  • Nephrology
  • Cardiology
  • Hypertension Research

Background:

  • Hypertension-induced kidney impairment increases morbidity and mortality.
  • Left ventricular hypertrophy (LVH) is a common hypertension complication that can worsen patient outcomes.
  • Understanding the relationship between LVH and kidney function in hypertensive patients is crucial.

Purpose of the Study:

  • To compare kidney function in hypertensive patients with LVH versus those without LVH.
  • To investigate the impact of LVH on markers of kidney damage in hypertension.

Main Methods:

  • Study conducted in Nigerian tertiary hospitals among hypertensive patients.
  • Demographic and clinical data collected via questionnaire.
  • Kidney function assessed by serum urea, creatinine, urinary creatinine, and microalbumin.
  • Echocardiography used to diagnose LVH.

Main Results:

  • LVH was present in 45.7% of 105 participants.
  • Patients with LVH were older and had lower weight.
  • Contrary to expectations, patients without LVH exhibited higher microalbuminuria (p=0.03) and lower estimated glomerular filtration rate (eGFR) (p=0.004), suggesting more advanced CKD stages.

Conclusions:

  • Hypertensive patients with LVH demonstrated better kidney function markers, including lower microalbuminuria and higher eGFR.
  • These findings suggest a potentially protective effect or different disease pathway in hypertensive patients with LVH regarding kidney function.
  • Further research is needed to elucidate the mechanisms behind these observed differences in kidney function.