View clinical trials related to Bradycardia.
Filter by:Combined spinal-epidural (CSE) for labor analgesia has been associated with fetal bradycardia and uterine hypertonia, possibly due to asymmetric decrease in catecholamine levels, when compared with epidural analgesia (EP).
Hypoxia/bradycardia are common symptoms after vaccination of preterm infants. Adults show diurnal variations in vaccination response, due to circadian regulation of the immune system. The investigators plan to investigate whether preterm infants also show differences in hypoxia/bradycardia rate upon morning vs. evening vaccination. Hypoxia/bradycardia is recorded by pulse oximetry starting 24 hours before until 48 hours after vaccination; parents also kept a sleep-diary. 24 hours after vaccination interleukin-6, interleukin-1β and C-reactive protein get determined. To control vaccination response, pertussis- and haemophilus-titers are determined before vaccination and at 4 months corrected age.
The purpose of this study is to characterize the utilization of diagnostics capabilities in St. Jude Medical pacemakers to manage patients with a standard bradycardia pacing indication.
Dexmedetomidine is a selective α2 adrenergic receptor antagonist, which has little effect on respiratory suppression used as sedative agent. Also, dexmedetomidine has been reported to prolong the anesthesia time when used with patients undergoing spinal anesthesia. However, dexmedetomidine has sympathetic effect which can cause hypotension and bradycardia dose dependently. Therefore, this study is aimed to evaluate the effectiveness of premedication of anticholinergic agents on vital sign in patients undergoing spinal anesthesia.
Medtronic is sponsoring the Micra Continued Access (CA) study to provide continued access to the Micra System while the marketing application is under review by the Food and Drug Administration (FDA).
Heart transplants save the lives of nearly 500 children in heart failure per year. Columbia is one of the largest pediatric heart transplant centers in the world, averaging 25 transplants per year, and providing ongoing care to nearly 250 children with transplanted hearts. After transplant, children are at increased risk to develop sudden onset of abnormally fast heart rates. This research project will study adenosine, a medication that is routinely used to slow fast heart rates in non-transplanted children (i.e. normal hearts), and its effects on the transplanted heart. Adenosine is often not used in patients with transplanted hearts because, based on prior limited research in adult patients, the standard adult dose may have a longer medication effect, producing a slower heart rate for an undesirable period of time. However, the current alternatives to adenosine treatment are either inappropriate for the pediatric age range, or have increased risk of unwanted side effects. This research project will answer two questions: is adenosine safe to give a child who has had a heart transplant, and will it be effective in treating the fast heart rate? All pediatric heart transplant patients undergo regular heart testing, known as a cardiac catheterization, one or more times per year. Three days before testing, participants will be asked to stop a regular medication, dipyridamole, because it slows the breakdown of adenosine in the body, and may increase its effects. (Of note, all patients that are on dipyridamole are also on aspirin, which gives a second line of heart protection, and will not be stopped.) After regular cardiac catheterization, all patients will already have intravenous (IV) access to give medication. Also, this setting allows the opportunity to have a back-up pacing catheter in the heart, ensuring that there will not be a longer than desired effect from the medication. Adenosine will be given per a low-dose protocol until either the medication effect is seen or the maximum dose is reached. There will be no difference in procedure recovery period time, and patients will resume regular home medications after finishing the test. As Columbia is one of largest pediatric heart transplant centers in the world, studying the effects of adenosine at low doses will benefit the investigators population greatly, either to find a new recommended medication dose, or to provide evidence that this medication is truly inadvisable for the investigators patients. The initial study was completed with all 80 patients enrolled and tested. Subsequent testing is now ongoing on patients in whom dipyridamole was stopped prior to their initial testing with a repeat study without discontinuing the dipyridamole. We anticipate re-testing about 30 of the 80 patients.
The main objective of this study is to verify the effectiveness of the new ACAP ® Confirm algorithm in the automatic management of atrial capture.
Establishing breathing after birth is vital for survival and long-term health of premature babies. 10% of all preterm babies fail to breathe after birth and require help with breathing. When infants need help with breathing the clinical team will place a small mask on the babies face to give some breaths to help the baby breath (what the investigators call mask ventilation). This procedure is done million times a day around the world and several times a day here at the Royal Alexandra Hospital. Providing these breaths via mask ventilation is the most difficult step in helping a baby breath at birth. If this is provided wrongly then baby does not receive enough oxygen, which could damage the brain and even cause death. To keep the skill level of every staff member up-to-date every staff member is required to re-train this rescue breaths via mask ventilation once every two years. The investigators believe this is not enough and that daily trainings are necessary to keep your skills up-to-date. The investigators aim to compare to different teaching techniques using daily trainings to see if either improves the skills of the resuscitator providing mask ventilation The study will last 7 month (baseline observations (2 months), intervention period (3 months), After trial period (2 months) The investigators will use our routinely used equipment to record neonatal resuscitation and the investigators also routinely make video recordings to evaluate performance during resuscitation.
The overall objective is to determine whether a bundled In-hospital Newborn Resuscitation Edu-cation intervention (INSPIRE-D) improves process of care associated with improved newborn survival and neurologic outcomes.
The purpose of the study is to evaluate the safety and performance of the Moderato System by implanting the Moderato pacemaker in patients who require a dual chamber pacemaker, and who also have hypertension, in order to reduce their blood pressure.