View clinical trials related to Bradycardia.
Filter by:The Physiologic Pacing Registry is a prospective, observational, multi-center registry performed to gain a broader understanding of 1) physiologic pacing implant and follow-up workflows, including pacing and sensing measurements and 2) the clinical utility in creating a 3-dimensional electro-anatomical map of cardiac structures prior to physiologic pacing device implants based on the clinical site's routine care.
Observational study to determine if topical anesthetic and intraoperative oculocardiac reflex influence post strabismus surgery recovery.
Oculocardiac reflex during routine strabismus surgery was prospectively observed in association with routine brain wave monitoring. Providence Hospital institutional review board (IRB) approved this observational study without need for consent.
The China Micra Transcatheter Pacing Study is a prospective, multi-center, single arm human clinical trial utilizing Objective Performance Criterion (OPC) to confirm the safety and efficacy profile of the Micra system for regulatory approval in China.
The purpose of this field evaluation is to collect and evaluate information related to CareLink transmission compliance as well as patient perceived benefit of BlueSync™ and the health care provider perception of the value of BlueSync™ and satisfaction with BlueSync™.
The Valsalva Assist Device (VAD) is a simple hand held device, designed to assist in the physical treatment of a common, fast heart rhythm disorder called supraventricular tachycardia (SVT). This treatment, called the Valsalva manoeuvre (VM), is a safe, physical technique involving a forced exhalation against resistance (like that required to blow up a balloon). This causes a reflex slowing of the heart and can correct attacks of SVT (cardioversion). It is an internationally recommended initial treatment but previously has had a low success rate (5-27%) and patients often have to be taken to hospital for drug treatment. Recent hospital research has demonstrated that a VM carried out using a certain level of strain pressure(40mmHg) measured with a blood pressure manometer, combined with a simple postural modification (the modified VM) gives a far better chance of success (43%) and avoids the need for drug treatment. More practical methods of generating this strain such as blowing on an empty syringe have been used but are unreliable. The Valsalva Assist Device (VAD) has been designed to provide the correct resistance and is packaged with instructions for the modified VM. Attacks of SVT frequently occur without warning in otherwise healthy people. Patients are often initially seen by ambulance staff and so the use of the VAD therefore represents an opportunity to provide ambulance clinicians with instructions for the modified VM and a means to deliver the correct strain in one, easy to use device. The investigators plan to test use of the device in patients with an attack of SVT and attended by paramedics or other pre-hospital practitioner, compared to current recommended practice. This project will provide important feasibility and recruitment data for a definitive trial, assessing the performance of the VAD on SVT cardioversion and conveyance (transfer to hospital) rates.
Patients undergoing total knee arthroplasty with spinal anesthesia are often sedated to reduce patient discomfort due to large noises during surgery and also to reduce anxiety. Most commonly used sedatives include propofol and midazolam, but these agents often cause hypotension or respiratory depression, especially in elderly patients. Dexmedetomidine is a selective alpha 2 adrenergic drug, which acts as a sedative and also has analgesia effects. In contrast to propofol or midazolam, dexmedetomidine rarely causes respiratory depression, and therefore is often used in critically ill patients in the ICU and also in patients undergoing simple procedures. Hemodynamically, dexmedetomidine evokes a biphasic blood pressure response with a short hypertensive phase and subsequent hypotension. Bradycardia is also observed in many patients, which may lead to more serious outcomes in elderly patients who often have multiple comorbidities. Therefore, drugs to prevent bradycardia during dexmedetomidine infusion may help patients maintain a more stable hemodynamic state. The present study aims to compare the ability of atropine and glycopyrrolate to prevent bradycardia during dexmedetomidine infusion in elderly patients undergoing knee surgery with spinal anesthesia.
A prototype for a Valsalva Assist Device (VAD), which provides resistance to exhalation, has been developed and is ready for testing in healthy volunteers. There is a need to ensure the device can deliver the required strain and evaluate the physiological response (lowered heart rate) when used to deliver a Valsalva manoeuvre (VM) with and without postural modification.
This a prospective study when the clinician decides to use sugammadex, heart rate will be recorded every minute for 15 minutes following its administration. If bradycardia occurs and a clinical decision is made to treat it, the medications and doses used will be recorded.
Most of the conduction abnormalities with TAVR are usually detected during the procedure or during the following days of observation. Little is known about the prevalence and timing of any conduction abnormalities that exist before (other than standard ECG) or after through long term cardiac monitoring.