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  2. Bradycardia - Wikipedia

    en.wikipedia.org/wiki/Bradycardia

    If symptoms occur, a determining electrolytes may help determine the underlying cause. [28] Many heathy young adults, and particularly well-trained athletes, have sinus bradycardia that is without symptoms. [5] This can include heart rates of less than 50 or 60 bpm or even less than 40 bpm. [5]

  3. Aortocaval compression syndrome - Wikipedia

    en.wikipedia.org/wiki/Aortocaval_compression...

    "Aortocaval compression resulting in sudden loss of consciousness and severe bradycardia and hypotension during cesarean section in a patient with subvalvular aortic stenosis". BMC Anesthesiology. 19 (1): 116. doi: 10.1186/s12871-019-0791-x. ISSN 1471-2253. PMC 6610927. PMID 31272377. AJ, Lee; R, Landau (2017).

  4. Hypotension - Wikipedia

    en.wikipedia.org/wiki/Hypotension

    Hypotension, also known as low blood pressure, is a cardiovascular condition characterized by abnormally reduced blood pressure. [1] Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood [2] and is indicated by two numbers, the systolic blood pressure (the top number) and the diastolic blood pressure (the bottom number), which are the ...

  5. Neurogenic shock - Wikipedia

    en.wikipedia.org/wiki/Neurogenic_shock

    Neurogenic shock is a distributive type of shock resulting in hypotension (low blood pressure), often with bradycardia (slowed heart rate), caused by disruption of autonomic nervous system pathways. [1] It can occur after damage to the central nervous system, such as spinal cord injury and traumatic brain injury.

  6. Sinus bradycardia - Wikipedia

    en.wikipedia.org/wiki/Sinus_bradycardia

    Sinus bradycardia is a sinus rhythm with a reduced rate of electrical discharge from the sinoatrial node, resulting in a bradycardia, a heart rate that is lower than the normal range (60–100 beats per minute for adult humans). [1] [2]

  7. Blood pressure - Wikipedia

    en.wikipedia.org/wiki/Blood_pressure

    This is a medical concern if it causes signs or symptoms, such as dizziness, fainting, or in extreme cases in medical emergencies, circulatory shock. [59] Causes of low arterial pressure include sepsis , hypovolemia , bleeding , cardiogenic shock , reflex syncope , hormonal abnormalities such as Addison's disease , eating disorders ...

  8. Sinus node dysfunction - Wikipedia

    en.wikipedia.org/wiki/Sinus_node_dysfunction

    Often sinus node dysfunction produces no symptoms, especially early in the disease course. Signs and symptoms usually appear in more advanced disease and more than 50% of patients will present with syncope or transient near-fainting spells as well as bradycardias that are accompanied by rapid heart rhythms, referred to as tachycardia-bradycardia syndrome [4] [5] Other presenting signs or ...

  9. Pulse pressure - Wikipedia

    en.wikipedia.org/wiki/Pulse_pressure

    The most common cause of a low (narrow) pulse pressure is a drop in left ventricular stroke volume. In trauma, a low or narrow pulse pressure suggests significant blood loss. [8] A narrow pulse pressure is also caused by aortic stenosis. [3] This is due to the decreased stroke volume in aortic stenosis. [9]