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2. Bradycardia - Wikipedia

   en.wikipedia.org/wiki/Bradycardia

   Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). [1] While bradycardia can result from various pathologic processes, it is commonly a physiologic response to cardiovascular conditioning or due to asymptomatic type 1 atrioventricular block. Resting heart rates of less than 50 BPM are often normal ...

3. Syncope (medicine) - Wikipedia

   en.wikipedia.org/wiki/Syncope_(medicine)

   Syncope, commonly known as fainting or passing out, is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery. [ 1 ] It is caused by a decrease in blood flow to the brain, typically from low blood pressure. [ 1 ]

4. Arrhythmia - Wikipedia

   en.wikipedia.org/wiki/Arrhythmia

   The resting heart rate in children is much faster. In athletes, however, the resting heart rate can be as slow as 40 beats per minute, and be considered normal. [citation needed] The term sinus arrhythmia [26] refers to a normal phenomenon of alternating mild acceleration and slowing of the heart rate that occurs with breathing in and out ...

5. Normal Heart Rate for Elderly: What You Need to Know - AOL

   www.aol.com/normal-heart-rate-elderly-know...

   In this article, we’ll provide an overview of the normal heart rate for seniors, look at ways to measure it, learn to recognize signs of an abnormal heart rate and provide tips for promoting a ...

6. Hypovolemic shock - Wikipedia

   en.wikipedia.org/wiki/Hypovolemic_shock

   Hypovolemic shock is a form of shock caused by severe hypovolemia (insufficient blood volume or extracellular fluid in the body). [1][2] It can be caused by severe dehydration or blood loss. [3][2] Hypovolemic shock is a medical emergency; if left untreated, the insufficient blood flow can cause damage to organs, leading to multiple organ failure.

7. Pacemaker syndrome - Wikipedia

   en.wikipedia.org/wiki/Pacemaker_syndrome

   Pacemaker syndrome is a condition that represents the clinical consequences of suboptimal atrioventricular (AV) synchrony or AV dyssynchrony, regardless of the pacing mode, after pacemaker implantation. [1][2] It is an iatrogenic disease—an adverse effect resulting from medical treatment—that is often underdiagnosed. [1][3] In general, the ...