Tachycardia: Difference between revisions
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== Introduction == | == Introduction == | ||
Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal. While it is common to have tachycardia as a physiological response to exercise or stress, it causes concern when it occurs at rest. The normal resting heart rate for adults is between 60 and 100, which varies based on the level of fitness or the presence of medical comorbidities<ref>Henning A, Krawiec C. [https://www.ncbi.nlm.nih.gov/books/NBK553128/ Sinus tachycardia]. InStatPearls [Internet] 2021 Aug 11. StatPearls Publishing.Available: https://www.ncbi.nlm.nih.gov/books/NBK553128/<nowiki/>(accessed 30.2.2022)</ref> | Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal. While it is common to have tachycardia as a physiological response to exercise or stress, it causes concern when it occurs at rest. The normal resting heart rate for adults is between 60 and 100, which varies based on the level of fitness or the presence of medical comorbidities. Sometimes tachycardia signifies a health problem and could be the earliest sign of serious pathology. Thus, it is crucial to rapidly identify the underlying cause of tachycardia and determine if it indicates urgent evaluation and/or treatment. Arrhythmias are one of the main risk factors for stroke<ref>Henning A, Krawiec C. [https://www.ncbi.nlm.nih.gov/books/NBK553128/ Sinus tachycardia]. InStatPearls [Internet] 2021 Aug 11. StatPearls Publishing.Available: https://www.ncbi.nlm.nih.gov/books/NBK553128/<nowiki/>(accessed 30.2.2022)</ref>. | ||
== | == Types of tachycardia == | ||
There are 3 types of tachycardia. | |||
# Supraventricular (above the ventricle): where problems with the electrical signals in the atria of the heart cause the heart to beat faster, reducing blood flow to the rest of the body as the heart can't pump blood as effectively. eg atrial flutter and atrial fibrillation. | |||
# Ventricular: where the electrical signals in the ventricles of the heart cause the heart to beat faster affecting its ability to pump blood to the rest of the body. | |||
# Sinus tachycardia; where the natural pacemaker in the heart sends electrical signals faster than normal. This can be in response to a stressor, or it can be a sign of eg anaemia, problems with the thyroid gland or general ill health<ref>Health direct Tachycardia Available:https://www.healthdirect.gov.au/tachycardia (accessed 30.3.2022)</ref>. | |||
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Revision as of 04:53, 30 March 2022
Original Editor - Lucinda hampton
Top Contributors - Lucinda hampton and Tolulope Adeniji
Introduction[edit | edit source]
Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal. While it is common to have tachycardia as a physiological response to exercise or stress, it causes concern when it occurs at rest. The normal resting heart rate for adults is between 60 and 100, which varies based on the level of fitness or the presence of medical comorbidities. Sometimes tachycardia signifies a health problem and could be the earliest sign of serious pathology. Thus, it is crucial to rapidly identify the underlying cause of tachycardia and determine if it indicates urgent evaluation and/or treatment. Arrhythmias are one of the main risk factors for stroke[1].
Types of tachycardia[edit | edit source]
There are 3 types of tachycardia.
- Supraventricular (above the ventricle): where problems with the electrical signals in the atria of the heart cause the heart to beat faster, reducing blood flow to the rest of the body as the heart can't pump blood as effectively. eg atrial flutter and atrial fibrillation.
- Ventricular: where the electrical signals in the ventricles of the heart cause the heart to beat faster affecting its ability to pump blood to the rest of the body.
- Sinus tachycardia; where the natural pacemaker in the heart sends electrical signals faster than normal. This can be in response to a stressor, or it can be a sign of eg anaemia, problems with the thyroid gland or general ill health[2].
Sub Heading 3[edit | edit source]
Resources[edit | edit source]
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References[edit | edit source]
- ↑ Henning A, Krawiec C. Sinus tachycardia. InStatPearls [Internet] 2021 Aug 11. StatPearls Publishing.Available: https://www.ncbi.nlm.nih.gov/books/NBK553128/(accessed 30.2.2022)
- ↑ Health direct Tachycardia Available:https://www.healthdirect.gov.au/tachycardia (accessed 30.3.2022)
