関連する実験動画
Updated: Jul 18, 2026

05:37
Stenosis of the Inferior Vena Cava: A Murine Model of Deep Vein Thrombosis
Published on: December 22, 2017
深い静脈の血栓症である
Paul A Kyrle1, Sabine Eichinger
1Medical University of Vienna, Department of Internal Medicine I, Währinger Gürtel 18-20, 1090 Vienna, Austria. paul.kyrle@meduniwien.ac.at
Lancet (London, England)
|March 30, 2005
まとめ
深い静脈栓塞 (DVT) と肺栓塞は一般的です. D-ダイマー検査のような抗凝固薬と診断ツールによる予防は,これらの深刻な状態の管理と予防に役立ちます.
科学分野:
- 心血管医学は,心臓血管医学である.
- 血液学 ヘマトロジ
- 血管外科 血管外科
背景:
- 深い静脈血栓症 (DVT) とその合併症である肺栓塞症 (PE) と血栓後症候群 (PTS) は,一般的な医学疾患である.
- 血栓症は自発的,または手術,トラウマ,または不動性によって引き起こされ,予防措置が必要になります.
- 効果的な予防には,低用量の抗凝固薬,特にリスク集団の投与が必要です.
研究 の 目的:
- 深静脈血栓症 (DVT) とその続変に関する現在の理解をレビューする.
- 画像と血清学的マーカーを含む診断戦略について議論する.
- 抗凝固薬とリスク因子修正を含む治療方法の概要を述べる.
主な方法:
- 深静脈血栓症 (DVT),肺栓塞症 (PE),および血栓後症候群 (PTS) についての既存の文献のレビュー.
- 超音波検査,静脈検査,D-ダイマー検査などの診断方法の分析.
- 低分子量ヘパリン (LMWH) とビタミンKアンタゴニスト (VKA) を含む,予防的および治療的抗凝固戦略の評価.
主要な成果:
- 臨床的リスク評価とD-ダイマー測定は,症状のある患者の25%のみが確認された血栓を有しているため,DVTを排除するために重要である.
- 低分子量ヘパリン (LMWH) と続いてビタミンKアンタゴニスト (VKA) は,血栓の進行と栓塞を効果的に防ぐ.
- 抗凝固薬の投与期間は様々で,3〜6ヶ月は多くの患者にとって十分であり,無期限の治療は特定の患者グループ (例えば,抗血栓欠乏症,ルプス抗凝固薬,同胞性欠陥,再発性DVT) に有益である.
- 癌患者の場合,LMWHは,VKAと比較して優れた有効性と比較可能な安全性を示しています.
- 女性は一般的にリスクが低いが,妊娠とホルモン療法 (経口避妊薬,HRT) は血栓形成のリスクを大幅に増加させる.
結論:
- 深静脈血栓症 (DVT) の管理には,リスク評価,正確な診断,適切な抗凝固剤を組み合わせた多面的なアプローチが必要です.
- 個別化された治療期間と薬剤選択 (LMWH vs. VKA) は,特にがん患者などの特定の集団において,非常に重要です.
- ホルモンの影響や遺伝的傾向を含む危険因子の認識は,予防と管理に不可欠です.
関連する概念動画
Formation of the Platelet Plug
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
Disorders of Hemostasis
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Peripheral Artery Disease I: Introduction
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Venous Thrombosis I: Introduction
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
Pulmonary Embolism I: Introduction
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
Pulmonary Embolism I: Introduction
A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...

