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词汇 vasoconstriction
释义

Definition of vasoconstriction in English:

vasoconstriction

nounˌveɪzəʊkənˈstrɪkʃ(ə)nˌveɪzoʊkənˈstrɪkʃən
mass noun
  • The constriction of blood vessels, which increases blood pressure.

    血管收缩

    Example sentencesExamples
    • At low doses, local anesthetics cause systemic vasoconstriction and raise blood pressure.
    • The hawthorn plant contains pharmacologically active flavonoids that inhibit vasoconstriction and actively dilate blood vessels.
    • The effect is a dramatic increase in blood pressure due to vasoconstriction.
    • The vascular effects result in tissue ischemia from vasoconstriction, platelet aggregation, and increased blood viscosity.
    • Following a vascular injury, vasoconstriction and retraction usually occur immediately and decrease blood flow to the affected area.

Derivatives

  • vasoconstrictive

  • adjectiveˌveɪzəʊkənˈstrɪktɪvˌveɪzoʊkənˈstrɪktɪv
    • The venom has vasoconstrictive properties that can lead to cyanosis and necrosis, with poor wound healing and infection.
      Example sentencesExamples
      • In hypoxia also, they initiate vasoconstrictive reflexes which act to maintain the arterial blood pressure.
      • Because of its vasoconstrictive properties, sumatriptan should be avoided in patients with known coronary artery disease or Prinzmetal's variant angina.
      • Yet in patients with septic shock, vasopressin has strong vasoconstrictive effects, demonstrated in several studies by an increased MAP and systemic vascular resistance.
      • Epinephrine's vasoconstrictive properties can be a problem if extravasation into tissue occurs, and may result in skin necrosis.
  • vasoconstrictor

  • nounˌveɪzəʊkənˈstrɪktəˌveɪzoʊkənˈstrɪktər
    • Cocaine is a potent CNS stimulant and vasoconstrictor that can precipitate hypertension, tachycardia, and fatal cardiac arrhythmias.
      Example sentencesExamples
      • Serotonin is a vasoconstrictor and uses agonists, such as ADP, epinephrine, and norepinephrine, to promote platelet aggregation.
      • Inhaled steroids are potent vasoconstrictors and are known to reduce bronchial blood flow in both normal subjects and patients with asthma, and consequently they may lessen airway edema.
      • Treatment of basilar migraines should avoid vasoconstrictors, otherwise standard abortive and prophylactic migraine medications are appropriate.
      • Vasopressin has been used clinically to treat a variety of disorders, both as an antidiuretic and as a vasoconstrictor.

Definition of vasoconstriction in US English:

vasoconstriction

nounˌvāzōkənˈstrikSHənˌveɪzoʊkənˈstrɪkʃən
  • The constriction of blood vessels, which increases blood pressure.

    血管收缩

    Example sentencesExamples
    • The effect is a dramatic increase in blood pressure due to vasoconstriction.
    • The hawthorn plant contains pharmacologically active flavonoids that inhibit vasoconstriction and actively dilate blood vessels.
    • Following a vascular injury, vasoconstriction and retraction usually occur immediately and decrease blood flow to the affected area.
    • The vascular effects result in tissue ischemia from vasoconstriction, platelet aggregation, and increased blood viscosity.
    • At low doses, local anesthetics cause systemic vasoconstriction and raise blood pressure.
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