View clinical trials related to Ventricular Flutter.
Filter by:Time-limited adaptive responses of thyroid function are common in the critically ill. About 70% of all patients treated on intensive care units develop a so-called non-thyroidal illness syndrome (NTIS) or TACITUS (thyroid allostasis in critical illness, tumours, uraemia and starvation), which is marked by low serum concentrations of the thyroid hormone T3 and other adaptive reactions of thyroid homeostasis. Occasionally, temporarily elevated concentrations of thyrotropin (TSH) and peripheral thyroid hormones are to be observed, especially after cardiopulmonary resuscitation (CPR). However, the available evidence is limited, although abnormal concentrations of thyroid hormones after CPR have occasionally been reported. Aim of the planned study is to investigate the thyrotropic (i.e. thyroid-controlling) partial function of the anterior pituitary lobe immediately after CPR. It is intended to evaluate statistical measures of TSH concentration and peripheral thyroid hormones in de-identified datasets (protocol A). Additionally, a prospective sub-study (protocol B) aims at a more precise description of pituitary and thyroid responses by means of serial investigations in routine serum samples, both immediately after CPR and during the course of ongoing treatment. This includes the evaluation of additional possible predictors, too. Primary endpoint of the study is changed TSH concentration immediately after CPR compared to the TSH value 24 hours later. Secondary endpoint is the relation between thyroid-controlling pituitary function and mortality. A high proportion of patients undergoing CPR will eventually receive iodinated radiocontrast media (e.g. for computed tomography or coronary angiography). This is one of the reasons why early identifying subjects at high risk for possible iodine-induced thyrotoxicosis is important. Increased oxygen consumption of the heart in hyperthyroidism is one of the reasons for high mortality in thyrotoxicosis. Therefore, accurate diagnosis of alterations in the hypothalamus-pituitary-thyroid (HPT) axis is of paramount importance.
The purpose of this study is to assess the incidence (at 90-days) of ventricular pacing in patients undergoing permanent pacemaker placement after TAVR. As well as incidence (at 90-days) of atrioventricular block (AVB), intraventricular conduction delay (IVCD), bundle branch block (BBB), and rate histogram in patients undergoing permanent pacemaker placement after TAVR.
The objective of this study is to gather data to establish the chronic safety, performance and effectiveness of the RELIANCE 4-FRONT™ Passive Fixation Defibrillation Leads.
BIOTRONIK Home Monitoring (HM) service enables the doctors to safely follow up (FU) their ICD and CRT-D patients in a remote fashion, with fewer in-clinic consultations. This may result in a more efficient FU and cost-savings for the health care payer. The EuroEco study: 1. Outlines a new HM-based FU model for the ICD and CRT-D patients that combines in-clinic consultations and regular check ups of the patient/ICD/CRT-D data received through the HM service. 2. Compares the direct costs for physicians and clinics for the HM-based FU of ICD and CRT-D patients versus the traditional FU. 3. Compares the indicators of patients' safety between the two FU models.
The purpose of this evaluation is to assess the acceptance level of specific programming recommendations based on the patient's clinical needs and primary indications when using the feature 'Indications Based Programming' (IBP) available in the ZOOMVIEW Software Application for the TELIGEN DR / VR and COGNIS family of devices compared to daily life programming chosen by physicians.
The aim of this prospective observational study is to evaluate the safety, over a follow-up of 2 years, of two strategies, consisting in performing or not performing defibrillation testing(DT) during first implant of implantable cardioverter defibrillator