sinus bradycardia वाक्य
उदाहरण वाक्य
मोबाइल
- This most commonly occurs in the setting of a sinus bradycardia.
- Pathological causes include sinus bradycardia, sinus arrest, sinus exit block, or AV block.
- This is referred to as sinoatrial block typically manifesting with various degrees and patterns of sinus bradycardia
- The ECG can detect sinus bradycardia, a resting heart rate of fewer than 60 beats per minute.
- If SA nodal impulses occur at a rate less than 60bpm, the heart rhythm is known as sinus bradycardia.
- These included two consecutive PVCs in one astronaut during exercise and an episode of atrioventricular dissociation preceded by sinus bradycardia in two astronauts.
- Studies have found that 50 85 % of conditioned athletes have benign sinus bradycardia, as compared to 23 % of the general population studied.
- People who regularly practice sports may have sinus bradycardia, because their trained hearts can pump enough blood in each contraction to allow a low resting heart rate.
- In tests, minor cardiac arrhythmias occurred slightly more often in cooled infants, however the effect was not unexpected because mild sinus bradycardia is known to be associated with hypothermia.
- The second, sinus bradycardia, is a sinus rhythm of less than 60 BPM . It is a common condition found in both healthy individuals and those considered well-conditioned athletes.
- This can be mistaken for sinus bradycardia if the APC is buried in the t wave since the APC will reset the SA node and lead to a long P-P interval.
- Sinus bradycardia can also be an adaptive advantage; for example, diving seals may have a heart rate as low as 12 beats per minute, helping them to conserve oxygen during long dives.
- The third, sick sinus syndrome, covers conditions that include severe sinus bradycardia, sinoatrial block, sinus arrest, and bradycardia-tachycardia syndrome ( atrial fibrillation, flutter, and paroxysmal supraventricular tachycardia ).
- The Bezold Jarisch reflex is responsible for the sinus bradycardia that commonly occurs within the first 60 minutes following an acute myocardial infarction, and explains the occurrence of AV node block in the context of acute posterior or inferior myocardial infarction.
- This is complemented by gastro-coronary reflexes whereby the coronary arteries constrict with " functional cardiovascular symptoms " similar to chest-pain on the left side and radiation to the left shoulder, dyspnea, sweating, up to angina pectoris-like attacks with extrasystoles, drop of blood pressure, and tachycardia ( high heart beat ) or sinus bradycardia ( heart beat below 60 ).
- For example, an inherited mutation of a highly conserved residue in the CNBD of the HCN4 protein ( S672R ) is associated with inherited sinus bradycardia . " In vitro " studies indicate that the S672R mutation causes a hyperpolarizing shift of the HCN4 channel open probability curve of about 5 mV in heterozygosis, an effect similar to the hyperpolarizing shift caused by parasympathetic stimulation and able to explain a reduction of inward current during diastole and the resulting slower spontaneous rate.
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