Sinus tachycardia is a rhythm in which the rate of impulses arising from the sinoatrial (SA) node is elevated. Sinus tachycardia is most often a normal and physiologic response, for example during exercise. However, sinus tachycardia can in some instances be inappropriate or pathologic.

2023年3月5日 · 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.

Tachycardia refers to heart rate >100/min in an adult. Tachycardias are classified as regular or irregular, narrow complex or wide complex. The underlying causes of tachycardia are legion.

Assume any wide-complex tachycardia is ventricular tachycardia until proven otherwise (it is safer to incorrectly assume a ventricular dysrhythmia than supraventricular tachycardia with abberancy) ^Fixed or rate-related.

Differentiating appropriate ST from the underpinnings of an ongoing medical problem, an autonomic disturbance, or a channelopathy can be difficult. For some individuals, ST can be associated with debilitating symptoms affecting functionality, quality of life, and well-being, but the relationship of symptoms to tachycardia often remains obscure.

2022年7月25日 · The full differential diagnosis of sinus tachycardia in isolation is extensive ranging from benign etiologies such as anxiety to severely life threatening etiologies such as sepsis. Discharging a patient with abnormal vital signs has been linked to unanticipated death.

2024年10月16日 · Sinus tachycardia is a common cause of tachycardia that can often be mistaken for an arrhythmia. Diagnosis depends on the P-wave morphology and the setting in which it occurs. Because each impulse originates in the sino-atrial node, the ECG shows a P wave preceding each QRS interval with a normal P-wave axis.

Normal sinus tachycardia (i.e., secondary), inappropriate sinus tachycardia, postural orthostatic tachycardia syndrome (POTS) and sinus node reentry tachycardia make up this group of arrhythmias. Their definitions, clinical features, diagnostic criteria, pathophysiologic mechanisms, and optimum management are discussed in this review.

2024年10月8日 · Sinus tachycardia is usually a secondary condition. Inappropriate sinus tachycardia is a primary condition diagnosed in patients with symptomatic persisting sinus tachycardia in which the below causes have been excluded. Sinus tachycardia: Heart rate 150 bpm. P waves are hidden within each preceding T wave. Handy Tip.

2023年10月12日 · Sinus tachycardia is a common cardiac rhythm disturbance that can be both a normal physiological response and a sign of underlying health issues. Understanding this condition and its presentation on an electrocardiogram (ECG) is crucial for healthcare professionals and patients alike.