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関連する概念動画

Heart Valves01:16

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Association Areas of the Cortex01:21

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
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Somatosensory, Motor, and Association Cortex01:23

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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
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トランスキャセータ性大動脈弁置換と早期の術後脳卒中との関連

Chetan P Huded1, E Murat Tuzcu1, Amar Krishnaswamy1

  • 1Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio.

JAMA
|June 19, 2019
PubMed
まとめ

トランスキャテーター大動脈弁置換 (TAVR) の脳卒中率は2011年から2017年の間に安定した. 術後の脳卒中では,30日間の死亡リスクが有意に増加したが,抗血小板剤または経口抗凝固剤の二重療法と関連していなかった.

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科学分野:

  • 心血管医学
  • 介入心臓科
  • 公衆衛生

背景:

  • 術後の脳卒中を減らすことは,トランスキャテーター大動脈弁置換 (TAVR) の安全性と結果の改善に不可欠です.
  • TAVRの後の脳卒中の傾向とリスク要因を理解することは,患者のケアを最適化するために不可欠です.

研究 の 目的:

  • TAVRを米国で最初の5年間使用した後の30日間の脳卒中傾向を評価する.
  • 術後の脳卒中と30日間の死亡率との関連を評価する.
  • 30日間の脳卒中リスクに対する医療療法の影響を調べる.

主な方法:

  • 2011年11月から2017年5月にかけてTAVRを受けた101,430人の患者による遡及コホート研究.
  • 30日間の脳卒中と 暫定性不血症の発症率の分析
  • 死亡率と治療関連性を評価するために,コックス比例リスクモデルと傾向スコアマッチングを使用した.

主要な成果:

  • 全体の30日間の脳卒中率は2. 3%であり,研究期間中に安定した割合であった (P=0. 22).
  • 30日以内の脳卒中の死亡リスクが著しく増加した (HR,6. 1; P<. 001).
  • 二重抗血小板療法も,出院後の経口抗凝固剤療法も,30日間の脳卒中リスクの減少と関連しませんでした.

結論:

  • TAVR後の30日間の脳卒中の発生率は米国で安定しています.
  • TAVR後の脳卒中は30日間の死亡率の有意な独立した予測因子です.
  • 退院時の現在の抗血栓治療は30日間の脳卒中リスクに影響を与えないようです.