AV universal (DDD) pacingatrial undersensingECG tracings of three patients in whom AV universal (DDD) pacemakers were implanted intermittently demonstrated dropped P waves. In one patient, true atrial undersensing was present; in the others, sensing of the atrial electrode was appropriate, but ...
Cardiac stress test: can assess functional impairment due to coronary heart disease Exercise ECG testing: most often with treadmill exercise Radionuclide myocardial perfusion imaging (rMPI): performed with either exercise or pharmacologic stress Stress echocardiography : also performed with either exercise ...
Heart failure is a chronic disease, the symptoms of which occur due to a lack of cardiac output. It can be better managed with continuous and real time monitoring. Some efforts have been made in the past for the management of heart failure. Most of these
(ECG),computed tomography(CT) and magnetic resonance imaging (MRI) are gradually becoming more popular. Among these, MRI and echocardiography are the most commonly used diagnostic tools that are used to assess cardiac function through geometric and flow measurements, such as left ventricle (LV) ...
The switching network also enables the device to sense or pace either in a bipolar mode using both the ring and tip electrodes of a lead or in a unipolar mode using only one of the electrodes of the lead with the device housing (can) 1285 or an electrode on another lead serving as a...
Kurland RJ, West J, Kelley S et al (1989) Magnetic resonance imaging to detect heart transplant rejection: sensitivity and specificity. Transplant Proc 21:2537–2543 PubMedGoogle Scholar Laffon E, Laurent F, Bernard V et al (2001) Noninvasive assessment of pulmonary arterial hypertension by MR...
Voice-over systems and ECG monitoring had neutral results. Lack of direct comparison between different modalities makes it impossible to determine the most effective method. Dutch studies showed predominantly non-significant results, mainly due to underpowered studies or because of a high standard of ...
BNP is secreted from the cardiac ventricles as a response to ventricular volume andfluid overload(Cowie & Mendez, 2002). BNP levels in the blood increases when symptoms of HF worsen. 6. Electrocardiogram (ECG). Can indicate the underlying cause of HF. ST-segment depression and T-wave flatten...
Screen-based communication poses specific challenges to our brain for integrating audiovisual (AV) disparities due to either asynchronies between audio and visual signals (e.g. video call software) or to mismatching physical features (dubbed movies). To make sense of discrepant audio-visual speech ...
Moreover, patients with more than one comorbidity were less frequently receiving MRAs, which may be related to the potential higher risk of side effects in this population [17]. In this sense, it is necessary to have a better understanding of the comorbidities in patients with HF to establish...