Tachycardia or tachyarrhythmia is used to describe the presence of cardiac rhythm abnormality in states when cardiac rate is increased to >100 bpm.
Divided into supraventricular and ventricular tachycardia.
Signs and symptoms related to rapid heart rate are altered sensorium,
angina, shortness of breath, myocardial infarction, hypotension and
other signs of shock (eg cold clammy skin, low urine output), heart
failure or pulmonary congestion.
Only 10 percent of patients in this study show an association between ST elevation (STE) in lead augmented vector right (aVR) with multilead ST depression and acutely thrombotic coronary occlusion. Thus, routine STE myocardial infarction (STEMI) activation in STE-aVR is not required for emergent revascularization, but urgent catheterization appears to be essential.
A study has shown disease progression in 21 percent of patients with aortic regurgitation (AR) from stage B to stage C/D, and this progression is associated with baseline AR severity and dimensions of sinotubular junction and annulus.
The trade-off between the risk of ischaemic vs bleeding events may be different between Asian and non-Asian patients, which warrants careful consideration when deciding on the duration of antiplatelet therapy following a percutaneous coronary intervention (PCI), according to a presentation at ESC Asia Congress 2019.