In an analysis of 44896 ECGs representing all adult non鈥搗entricular-paced ECGs in a major hospital ECG database over the course of 1 calendar year, the computerized interpretation program stated "Prolonged QT" on 9.8% of the ECGs. However, 36.2% of all ECGs had a QTc more than 460 ...
14 Although it is standard practice to measure the QT interval from the beginning of the QRS complex to the end of the T wave, the actual methods of measurement have not been standardized. Because the QT interval is prolonged at slower heart rates and shortened at faster heart rates, many ...
What conditions or situations cause prolonged QT intervals in the electrocardiogram besides the use of antidepressants? If there is a need for an antiarrhythmic in a patient on an antidepressant, which antiarrhythmics are less likely to cause further prolongation of the QT interval?. ...
HIIE = high-intensity interval exercise; HRmax = maximal heart rate; HRR = heart rate reserve; LT = lactate threshold; LUT = mid-luteal; MET = metabolic equivalent of task; MICE = moderate-intensity continuous exercise; mph = miles per hour; MVPA = moderate...
[155]. The sometimes associated reduction in serum potassium and electrocardiographic changes in QT interval may be of concern in cardiac patients, although rarely significant. Long-acting β-adrenergic agonists can be used in association with ICS to improve asthma control in more than mild severity...
differential diagnosis of a long QT intervalcongenital long QT syndromesacquired long QT syndromeshyperemesis gravidarumWe sought to evaluate the accuracy of a novel system for measuring fetal heart rate (FHR) and ST-segment changes using noninvasive electrodes on the maternal abdomen. Fetal ...
In the setting of methodone use, an electrocardiogram should be done early to determine if there is QT interval prolongation that could lead to arrhythmias. 7. Treatment With any suspected opioid overdose where respiratory depression is found, treatment needs to be begun with antagonists like ...