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searching for QRS complex 34 found (116 total)

Ashman phenomenon (491 words) [view diff] exact match in snippet view article find links to article

phenomenon, also known as Ashman beats, describes a particular type of wide QRS complex, often seen isolated that is typically seen in atrial fibrillation. It

Idioventricular rhythm (372 words) [view diff] exact match in snippet view article find links to article

beats per minute (bpm), absence of conducted P waves and widening of the QRS complex. In cases where the heart rate is between 50 and 110 bpm, it is known

Left anterior fascicular block (656 words) [view diff] exact match in snippet view article find links to article

on the ECG, of septal Q waves in I and aVL and predominantly negative QRS complex in leads II, III, and aVF). The delayed and unopposed activation of the

AV nodal reentrant tachycardia (2,020 words) [view diff] exact match in snippet view article find links to article

stimulation of the ventricles (which causes the QRS complex). As a result, the time from the QRS complex to the P wave (the RP interval) is short, less

Junctional escape beat (364 words) [view diff] exact match in snippet view article find links to article

before or after the QRS complex, or they may be absent, hidden by the QRS. P-R interval: If the P wave occurs before the QRS complex, the interval will

Ventricular escape beat (742 words) [view diff] exact match in snippet view article find links to article

circumstances the QRS complex forms a sharp sudden peak. For a patient with a ventricular escape beat, the shape of the QRS complex is broader as the

Cardiac contractility modulation (4,758 words) [view diff] exact match in snippet view article find links to article

rhythm and a QRS complex with a width of ≥ 150 ms. However, only 30-40% of all heart failure patients show such a prolonged QRS complex, and therefore

Sgarbossa's criteria (857 words) [view diff] exact match in snippet view article find links to article

in Sgarbossa's criteria: ST elevation ≥1 mm in a lead with a positive QRS complex (i.e.: concordance) - 5 points concordant ST depression ≥1 mm in lead

Cardiology diagnostic tests and procedures (835 words) [view diff] exact match in snippet view article find links to article

detect high grade heart artery stenosis. High frequency analysis of the QRS complex may be useful for detection of coronary artery disease during an exercise

Atrial septal defect (6,231 words) [view diff] exact match in snippet view article find links to article

a left axis deviation of the QRS complex, while those with a secundum ASD have a right axis deviation of the QRS complex. Individuals with a sinus venosus

Body reactivity (862 words) [view diff] exact match in snippet view article find links to article

ECG. A p wave which signifies atrial depolarization (contraction), a QRS complex which indicates ventricular depolarization, and a T wave which indicates

Junctional rhythm (905 words) [view diff] exact match in snippet view article find links to article

same time as the ventricles. 2. There are inverted P waves prior to the QRS complex. This is because of retrograde flow to the atria causing depolarization

Transposition of the great vessels (1,315 words) [view diff] exact match in snippet view article find links to article

specific to only TGA. If TGA is present, rightward deviation of the QRS complex and right ventricular hypertrophy or biventricular hypertrophy may be

William Francis Ganong Jr. (470 words) [view diff] exact match in snippet view article find links to article

WF, Levine SA (May 1952). "The syndrome of short P-R interval, normal QRS complex and paroxysmal rapid heart action". Circulation. 5 (5): 693–706. doi:10

Dextropropoxyphene (3,973 words) [view diff] exact match in snippet view article find links to article

anesthetic activity and are not reversed by naloxone. Widening of the QRS complex appears to be a result of a quinidine-like effect of propoxyphene, and

Adenosine (3,346 words) [view diff] exact match in snippet view article find links to article

PMID 6376597. S2CID 21575090. Mitchell J, Lazarenko G (November 2008). "Wide QRS complex tachycardia. Diagnosis: Supraventricular tachycardia with aberrant conduction;

Torsades de pointes (2,978 words) [view diff] exact match in snippet view article find links to article

ventricular tachycardia with a characteristic illusion of a twisting of the QRS complex around the isoelectric baseline (peaks, which are at first pointing up

Triiodothyronine (2,756 words) [view diff] exact match in snippet view article find links to article

helpful clinical measure to assess contractility is the time between the QRS complex and the second heart sound. This is often decreased in hyperthyroidism

Quinidine (1,911 words) [view diff] exact match in snippet view article find links to article

the surface ECG. Other ECG effects include a wide notched P wave, wide QRS complex, depressed ST segment, and U waves. These are the results of both slowed

Polysomnography (3,464 words) [view diff] no match in snippet view article find links to article

it contracts and expands, recording such features as the "P" wave, "QRS" complex, and "T" wave. These can be analyzed for any abnormalities that might

Variant angina (3,727 words) [view diff] exact match in snippet view article find links to article

elevated ST segment plus a widening of the R wave to create a single, broad QRS complex peak termed the "monophasic curve". Associated with these ECG changes

Milk-alkali syndrome (2,925 words) [view diff] exact match in snippet view article find links to article

changes. Prolongation of PR and QRS intervals. Increased Amplitude of QRS complex. Osborn wave Short ST segment. Radiology: Chest x-rays can help exclude

Bioamplifier (2,258 words) [view diff] exact match in snippet view article find links to article

external to the body. The amplitude of ECG ranges from 0.3 to 2 mV for the QRS complex, which is used to determine the interbeat interval from which the frequency

Lamotrigine (6,568 words) [view diff] exact match in snippet view article find links to article

block of the cardiac Na⁺ channel and drug-induced prolongation of the QRS complex". British Journal of Pharmacology. 164 (2): 260–273. doi:10.1111/j.1476-5381

Hypertrophic cardiomyopathy (8,830 words) [view diff] exact match in snippet view article find links to article

aorta; LV = Left ventricle; ECG = Electrocardiogram. After the third QRS complex, the ventricle has more time to fill. Since there is more time to fill

Arrhythmogenic cardiomyopathy (5,441 words) [view diff] exact match in snippet view article find links to article

50% of those with ACM. This is described as a terminal notch in the QRS complex. It is due to slowed intraventricular conduction. The epsilon wave may

Lethal injection (10,884 words) [view diff] exact match in snippet view article find links to article

interval, then eventually disappearance of the P wave, widening of the QRS complex, and finally, asystole. This process can occur in the span of 30 to 60

Cardiac arrest (13,739 words) [view diff] exact match in snippet view article find links to article

filling with blood. Ventricular tachycardia is characterized by an altered QRS complex and a heart rate greater than 100 beats per minute. When V-tach is sustained

Lev's disease (2,738 words) [view diff] exact match in snippet view article find links to article

in the cardiac conduction of the His-Purkinje system, widening of the QRS complex, and temporal potentially prolongation of the PR interval. However, individuals

Outline of cardiology (7,309 words) [view diff] exact match in snippet view article find links to article

resulting in a narrow QRS complex. With PVCs, the extra beat originates within the ventricles and results in a wide QRS complex. Like PACs, they can be

Cardiac rhythm problems during spaceflight (3,823 words) [view diff] exact match in snippet view article find links to article

of ventricular depolarization (QRS) and repolarization (T-wave). The QRS complex is usually of fixed duration in healthy individuals and does not change

Raghib syndrome (2,806 words) [view diff] no match in snippet view article find links to article

and pump blood into the ventricles. These ventricles then make the "QRS" complex as they contract and push blood up and out of the heart muscle. The heart

Filtered esophageal left heart electrogram (1,496 words) [view diff] exact match in snippet view article find links to article

activities can easily be recognized even if they are superimposed by the QRS complex. Thus, LAE recording can be utilized, for example, to quickly differentiate

Bioinstrumentation (8,411 words) [view diff] exact match in snippet view article find links to article

pattern consists of the P wave, QRS Complex and the T wave; where the P wave represents atrial depolarization, the QRS complex is three waves of ventricular