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Pleural Effusion I: Introduction01:25

Pleural Effusion I: Introduction

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Pleural effusion is an abnormal fluid accumulation in the pleural cavity, a narrow space between the lungs and the chest wall. It is not a disease per se but rather a symptom or indication of an underlying disease. In normal circumstances, this space contains a small amount of fluid (5 to 15 mL), a lubricant facilitating the non-frictional movement of the pleural surfaces.
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's...
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Pleural Effusion II: Symptoms and Management01:28

Pleural Effusion II: Symptoms and Management

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Pleural Effusion Overview
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
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Introduction to Fibroblasts01:09

Introduction to Fibroblasts

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Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
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Smooth Endoplasmic Reticulum01:21

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Smooth endoplasmic reticulum or smooth ER is a sub-organelle with specialized functions in animal cells and plant cells. It is often associated with the tubule morphology of the endoplasmic reticulum.
The ER provides optimal conditions for synthesizing steroid hormones and lipids, such as phospholipids and triglycerides. Traditionally, lipid metabolism was considered to be a smooth ER function. However, there is no direct evidence to prove that rough ER is completely excluded from lipid...
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Pleural Disorders: Types and Brief Description01:30

Pleural Disorders: Types and Brief Description

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The pleura is a vital part of the respiratory system. It's a double-layered membrane surrounding the lungs and lining the chest cavity. The two layers of the pleura are:
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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
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Pleuroparenchymal fibroelastosis: 81件の症例をレビューする

Misbah Baqir1, Allison M LeMahieu2, Thomas E Hartman3

  • 1Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA.

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まとめ

Pleuroparenchymal fibroelastosis (PPFE) は,イディオパシーと二次的な形態の間で同様の死亡リスクを示しています. しかし,肺機能の低下は,二次性PPFEでは家族的および自己免疫的原因が最も一般的です.

キーワード:
イディオパシーPPFE についてインタースティシャル肺炎プラウロパレンキマ線維縮小症予後要因

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科学分野:

  • 肺科
  • 中間肺疾患

背景:

  • プラウロパレンキーマ線維症 (PPFE) は,肺上部の葉に影響するインタースティシャル肺炎です.
  • その臨床的特徴,病状,および予後要因は不明である.
  • PPFEはイディオパシーまたは他の状態に二次的かもしれません.

研究 の 目的:

  • PPFE患者の特徴を分析する.
  • PPFEにおける死亡率の予測要因を特定する.
  • 病原性 PPFE と 二次性 PPFE の間の疾患進行を比較する.

主な方法:

  • 81人のPPFE患者の人口統計,臨床,放射線,病理学的データを遡及的に分析した.
  • 死亡率と肺機能の低下を評価するために使用される線形回帰混合モデル.

主要な成果:

  • 研究には81人の患者 (73%が女性,平均年齢69. 4歳,75%が非喫煙者) が参加した.
  • 病原性PPFEは46%を占め,二次性PPFEはしばしば家族性 (40%) または自己免疫性 (33%) であった.
  • 777日間の追跡期間中,38%が死亡 (5年生存率53%). 低BMI,低強制生命力 (FVC),および喫煙歴は死亡率を予測しました.
  • FVCの減少は二次的なPPFEよりもイディオパシーPPFEでは遅かった.

結論:

  • イディオパシーと二次性PPFEは死亡リスクが似ている.
  • 病気の進行,特にFVCの減少は,イディオパシーと二次的なPPFEの間に異なります.
  • 家族や自己免疫疾患は二次性PPFEの主要な原因です.