ACUTE AND CHRONIC LIVER FAILURE

Аннотация

Kidney diseases, such as acute and chronic renal failure, are significant medical concerns due to their severe health consequences. The kidneys play a vital role in blood filtration, toxin removal, water-salt balance maintenance, and blood pressure regulation. Dysfunction in these processes leads to various diseases that result in structural changes in kidney tissues and impaired function. This article discusses the pathophysiology, causes, and consequences of acute and chronic kidney failure, emphasizing the importance of timely diagnosis and treatment. Keywords: Kidney diseases, chronic renal failure, severe health consequences, blood filtration, water-salt balance maintenance, kidney failure. ОСТРАЯ И ХРОНИЧЕСКАЯ ПЕЧЕНОЧНАЯ НЕДОСТАТОЧНОСТЬ Аннотация. Заболевания почек, такие как острая и хроническая почечная недостаточность, являются серьезной медицинской проблемой из-за их серьезных последствий для здоровья. Почки играют жизненно важную роль в фильтрации крови, выведении токсинов, поддержании водно-солевого баланса и регуляции артериального давления. Нарушение этих процессов приводит к различным заболеваниям, которые приводят к структурным изменениям в тканях почек и нарушению функции. В этой статье рассматриваются патофизиология, причины и последствия острой и хронической почечной недостаточности, подчеркивая важность своевременной диагностики и лечения. Ключевые слова: Заболевания почек, хроническая почечная недостаточность, серьезные последствия для здоровья, фильтрация крови, поддержание водно-солевого баланса, почечная недостаточность. 722 ResearchBib IF - 11.01, ISSN: 3030-3753, Volume 2 Issue 3 Introduction. The kidneys are essential organs responsible for homeostasis, blood filtration, and metabolic waste removal. Their impairment leads to severe systemic disorders, including acute and chronic kidney failure. Acute kidney injury (AKI) is a short-term condition, often reversible if diagnosed early, whereas chronic kidney disease (CKD) progresses over time, resulting in irreversible damage. Understanding the mechanisms of kidney dysfunction is crucial for effective prevention and treatment strategies. Methods. This study is based on a comprehensive analysis of existing literature, including clinical studies, epidemiological data, and experimental research on kidney diseases. The methodology includes a review of recent publications from peer-reviewed journals, meta-analyses of patient data, and case studies highlighting the impact of acute and chronic kidney diseases. In addition, statistical methods were employed to assess trends in disease progression and treatment effectiveness. Acute Kidney Injury (AKI) is characterized by a sudden decline in kidney function due to circulatory disturbances, infections, or toxic exposure. It commonly arises from shock, blood loss, hypovolemia, or nephrotoxic drugs. The primary mechanism of AKI is tubular cell injury, leading to swelling, destruction, and cell death, which compromise filtration capacity. Cellular debris obstructs tubules, exacerbating dysfunction through inflammation and further damage. Prerenal causes of AKI involve reduced kidney blood flow, leading to tissue hypoxia. Renal causes include infections and toxic injuries directly affecting kidney tissues. Postrenal factors, such as urinary obstruction, increase pressure in the urinary tract, causing structural damage. Importantly, timely diagnosis and treatment can reverse AKI, restoring kidney function. Chronic Kidney Disease (CKD) develops gradually and leads to irreversible kidney damage. Major causes include chronic conditions like diabetes, hypertension, glomerulonephritis, and polycystic kidney disease. In early stages, kidney compensation mechanisms maintain function, but structural changes worsen over time. The progression of CKD is driven by glomerulosclerosis and interstitial fibrosis. Glomerulosclerosis replaces normal kidney tissue with scar tissue, impairing filtration efficiency. As a result, toxic metabolites accumulate in the body. Interstitial fibrosis disrupts metabolic processes, while tubular damage leads to atrophy. CKD is also associated with chronic hypertension and electrolyte imbalances. Vascular changes further complicate CKD. Thickening of blood vessel walls restricts kidney blood supply, promoting ischemia and accelerating disease progression. Conditions such as diabetes and hypertension exacerbate kidney deterioration. In late-stage CKD, kidneys shrink, become rigid, and develop a rough surface, ultimately leading to total kidney failure, necessitating dialysis or transplantation. 723 ResearchBib IF - 11.01, ISSN: 3030-3753, Volume 2 Issue 3 CKD is also associated with metabolic imbalances, anemia, hypertension, and fluid retention, requiring a multidisciplinary treatment approach. Discussion. The clinical consequences of kidney diseases include systemic complications such as cardiovascular disorders, metabolic acidosis, and increased susceptibility to infections. In t