View clinical trials related to Bradycardia.
Filter by:The aim of this study is to compare the effects of Ivabradine and metoprolol to reduce heart rate prior to coronary CT angiography in patients with advanced heart failure.
The interest of the CAPRI study is to confirm the safety and the efficacy of the ENO/TEO/OTO pacing system when used under 1.5 or 3 Tesla MRI environment and in accordance with the MRI solutions guideline.
Spinal anesthesia is a safe technique, widely used and tested in the gynecological field, so as to be considered the first choice technique in cesarean section, which allows to quickly obtain a valid sensor and motor block. Bupivacaine is one of the most widely used drug for obtaining spinal anesthesia in pregnant women undergoing caesarean section. Bupivacaine is a local anesthetic available as a racemic mixture of its two enantiomers, the R (+)- dextrobupivacaine and the S (-) - levobupivacaine, whose clinical use is widely validated. Racemic bupivacaine is available as a simple or hyperbaric solution, the latter being the most commonly used for spinal anesthesia. Levobupivacaine, which is the pure levorotatory enantiomer of racemic bupivacaine, is a slightly hypobaric solution compared to liquor and has shown less heart and nerve toxicity, probably due to its ability to bind proteins more rapidly, and a greater selectivity towards the sensory component compared to Bupivacaine, presents action and effects better predictable. Its baricity would also offer the advantage of providing a less sensitive block to the position. Hypotension is one of the most common complications of spinal anesthesia and is particularly relevant in caesarean section because, in addition to the adverse effects on the parturient, it can have repercussions on the fetus through a reduction of placental perfusion. Some studies have showed a similar incidence of hypotension in patients treated with bupivacaine compared to those treated with levobupivacaine, while others assert an equivalence between the two drugs. In most studies, however, a significantly lower incidence of hypotension and a greater hemodynamic stability were reported in pregnant patients undergoing spinal anesthesia by caesarean section with levobupivacaine. Being both hyperbaric bupivacaine and levobupivacaine routinely used at the "G. Rodolico" Universitary Hospital of Catania for the spinal anesthesia of pregnant women undergoing caesarean section and being their use decided exclusively at discretion of the treating anesthesiologist, in the light of the discrepant data in the literature about the incidence of hypotension with the two drugs, the main objective of this observational study is to evaluate the hemodynamic effects mediated by levobupivacaine on pregnant women subjected to elective cesarean section and to compare them with those mediated by hyperbaric bupivacaine in an historical court of pregnant women subjected to caesarean section in the period between April 2017 and April 2018. The hemodynamic parameters will be monitored in real time with a non-invasive hemodynamic monitoring system (EV1000® platform + Clearsight® system - Edwards LifeSciences), routinely used in the "G. Rodolico" Universitary Hospital of Catania, allowing to obtain greater accuracy and veracity of the results compared to previous studies conducted on such anesthetics.
FFR-guided PCI has been performed in National Taiwan University Hospital(NTUH) for many years. Nevertheless, the method of FFR measurement in NTUH is different from that in literature. In this study, the investigator would like to evaluate the effectiveness and safety of NTUH experience in FFR prospectively. First, the investigator will record any intracoronary (IC) injected adenosine-related complications, such as bradyarrhythmia or chest discomfort. Second, the investigator will follow up on the clinical outcome of the participants for 2 years, record if any target lesion failure, target vessel failure, target vessel-related myocardial infarction, and cardiac death. Finally, left ventricular diastolic pressure, serum pro-brain natriuretic peptide (pro-BNP), and high sensitivity C- reactive protein (hsCRP) will be checked and determined their relationships with the maximum dosage of IC adenosine.
The goal of the SENSITACT system is to activate an adaptive kinesthetic stimulation to treat apnea-bradycardia events on preterm infants, while minimizing deleterious effects, in particular arousals that can be due either to respiratory efforts or to kinesthetic stimulation itself. This novel system will provide an alternative treatment to apnea-bradycardia, with improved patient comfort and autonomy. In particular, it may become a complementary solution for the current treatments (Manual stimulation by caregivers, continuous or intermittent nasal positive pressure ventilation and methylxanthine therapies) that do not appear to be optimal and usually only allow a partial reduction in the number and severity of apneas.
There have been studies reporting that combined spinal-epidural (CSE) with fentanyl and bupivacaine produce fetal bradycardia, (M.Kuczkowski, 2004) (Abrão K, 2009 ). It is unknown whether any differences in risk exist between fentanyl and bupivacaine when used as a part of the CSE procedure. Some authors have reported cases of parturients who developed uterine hyperactivity and fetal bradycardia after subarachnoid administration of fentanyl during labor. (D'Angelo & Eisenach, 1997) (Friedlander JD, 1997). It has been suggested that uterine hypertonus, leading to non-reassuring fetal heart rate tracings, might be an etiologic factor in these situations. (Landau, 2002). We propose this study to test the hypothesis that administration of epidural fentanyl is associated with a lower incidence of fetal bradycardia compared to intrathecal fentanyl.
The implantable device therapy for cardiac arrhythmias has been an established therapy, and one of the common standard procedures in cardiac clinical practice. Pacemakers, implantable cardioverter-defibrillators, and cardiac resynchronization therapy have been developed since 1960s, and the technologies in this field are still progressively developing. Not only these "traditional" implantable devices, there are multiple new devices for cardiac diseases, such as implantable loop recorder, vagal nerve stimulator and barostimulator. The aim of this registry is to demonstrate the efficacy and the safety of standard device implantation procedures and to evaluate/ identify specific factors, including clinical characteristics, laboratory data and procedural data, which predict the prognosis/complication of the patients. These identification will result in further improvement of patients' care.
The reported risk of nonreassuring fetal heart trace following neuraxial analgesia is 3-23%. This variability may be due to fluid and oxytocin management prior to and during the initiation of neuraxial analgesia. The study hypothesis is that decreasing the oxytocin infusion rate by 50 % prior to initiation of combined spinal epidural analgesia will cause a reduction in the incidence of adverse fetal heart rate changes.
This study is intended to compare the feasibility, safety and efficacy of Ensite-NavX zero-fluoroscopic navigation system to conventional fluoroscopic X-ray approach as to performing single-chamber pacemaker implantation.
This study is intended to compare the feasibility, safety and efficacy of Ensite-NavX zero-fluoroscopic navigation system to conventional fluoroscopic X-ray approach as to performing double-chamber pacemaker implantation.