アルブミン転移率を用いたセプシスとCOVID-19の重症患者の内皮機能障害:パイロット研究
Ricardo Castro1, Ashish K Khanna2, Martin Schreiber3
1Pontificia Universidad Católica de Chile, Department of Intensive Care, Santiago, Chile.
Journal of critical care
|August 24, 2025
まとめ
セプシス患者はCOVID-19患者より高いアルブミン転出率 (ATR) を示し,より重度の内皮機能不全を示した. 精密な流体状態の評価は,重症患者にとって極めて重要です.
科学分野:
- クリティカル ケア 医療
- 病理生理学
- 流体力学
背景:
- COVID-19とセプシスは内皮機能障害と毛細血管の漏れを引き起こします.
- アルブミンの転出率 (ATR) は毛細血管の漏れを反映し,患者の結果に影響します.
- ATRの違いを理解することは,重症患者の管理に不可欠です.
研究 の 目的:
- COVID-19 の重症患者における アルブミン転出率 (ATR) と 毒症を比較する.
- これらの条件でATRと流体状態の関係を調査する.
主な方法:
- 36人のICU患者 (18人のCOVID-19, 18人のセプシス) を対象とした比較研究.
- 10日間の131I- アルブミントレーサーを用いてATR,全血量,赤血球量,および血量を測定する.
- ウィルコクソンランクサムテストと多変量線形回帰を用いた分析.
主要な成果:
- ATRは,COVID-19と症の両方の患者で持続的に上昇しました.
- セプシス患者は,COVID-19患者と比較して有意に高いATRを示した.
- 臨床的な流体状態の評価は,しばしば体積状態を誤って分類し,患者は低体量であった場合,しばしば高体量を示した.
結論:
- セプシスは,COVID-19よりも顕著な内皮機能障害と毛細血管の漏れに関連しています.
- 重症患者の液体状態を評価する現在の臨床方法は,しばしば不正確です.
- 流体療法を効果的に導くために,信頼できる診断ツールの開発が必要である.
関連する概念動画
Acute Kidney Injury II: Pathophysiology
72
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
72
Acute Kidney Injury IV: Diagnostic Studies and Prevention
57
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
57
Acute Kidney Injury III: Clinical Manifestations
91
Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
91
Acute Kidney Injury I: Introduction
72
Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
72
Nephrotic Syndrome I : Introduction
27
Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
27
Acute Kidney Injury VI: Nursing Management
57
Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
57


