55 Clinical Trials for Various Conditions
This study aims to learn more about blood management in children undergoing heart surgery, such as the right amounts, and the best blood products, to administer. It also aims to develop a mathematical model that may help researchers better predict and treat patients who need blood transfusions during heart surgery.
Lay Summary This study tests two ways of measuring blood magnesium after heart surgery. Children who need heart surgery may have heart and kidney problems after surgery. The right amount of magnesium in blood reduces this risk. This study will test the best way to measure magnesium. This will let doctors choose the right dose of MgSO4. MgSO4 is a magnesium supplement. Taking MgSO4 after heart surgery helps children. For each child, it is best to personalize MgSO4 dose. This is based on the amount of magnesium in blood. This study will test two ways of personalizing MgSO4 dose. In the blood, there are two kinds of magnesium. Usually, blood magnesium tests measure both forms together. This does not say anything about active magnesium. This study will measure the two forms separately. Then, MgSO4 will be given based on either the active or whole magnesium. Measuring active magnesium is good. Active magnesium levels change faster than total. That means active magnesium tests may better protect children. Also, active magnesium has more of an impact on heart and kidney function. Focusing on the active form will help these organs stay healthy. To test how well the MgSO4 is working, heart and kidneys will be examined. After surgery, certain harmful heart rhythms can occur. The types and number of harmful rhythms will be studied. Kidney problems can also happen after heart surgery. Kidney health will be studied. To help understand how active magnesium works, further tests will be done. These tests will look for evidence of poor health in the cells that make up the heart, kidney, and blood.
The purpose of this study is to evaluate pain control following pediatric cardiac surgery with the use of local anesthesia via an ultrasound guided regional anesthetic technique compared with surgeon delivered wound infiltration.
The purpose of the study is to determine the plasma concentration of bupivacaine at various time points after Exparel (bupivacaine liposome injectable suspension, Pacira Pharmaceuticals, Inc., Parsippany, NJ) is injected subcutaneously for median sternotomy incisions in pediatric cardiac surgery patients.
The objective of this study is to determine the effectiveness of a real time continuous risk analytics algorithm in the successful de-escalation of vasoactive and inotropic support in pediatric patients following cardiac surgery.
The aim of the current pilot study proposal is to compare the use of the purified human fibrinogen concentrate (Fibryga®, Octapharma USA) to cryoprecipitate for the treatment of cardiopulmonary bypass (CPB)-associated bleeding in pediatric cardiac patients in whom fibrinogen supplementation is indicated. The investigators' hypothesis is that fibrinogen concentrate will be as effective as cryoprecipitate in achieving adequate hemostasis after separation from CPB in pediatric cardiac surgery patients. Study Design: this will be a single-center, prospective, randomized, active-control study in pediatric (24 months of age or younger) patients undergoing elective cardiac surgery with CPB (n=30) in-whom fibrinogen supplementation after separation from CPB is indicated, based on the presence of clinically-significant bleeding and documentation of low fibrinogen level on viscoelastic point-of-care testing (MCF \< 10 mm on the FIBTEM assay of ROTEM). Informed consent will be obtained from a parent or a legal guardian prior to surgery and anesthesia. Once the need for fibrinogen supplementation is confirmed, study participants will be randomized into one of two treatment groups (n=15 in each group): 1. Cryoprecipitate group (dose: 10 ml/kg; active control group) or 2. Fibrinogen Concentrate group (dose: 70 mg/kg; intervention group). There will be no placebo group since withholding treatment is neither consistent with standard of care nor acceptable ethically. No other aspects of care will be modified. In the event that an additional dose of fibrinogen supplementation is required (bleeding with documented hypofibrinogenemia) cryoprecipitate will be administered to all study subjects (including those who received FC). The results of this study will be used for publication as well as the first stage towards a significantly larger randomized multi-center trial (see below). Based on the results of this pilot study the investigators plan to conduct a large multi-center, randomized active-control non-inferiority trial in the future, comparing the use of FC to cryoprecipitate in a much larger cohort of pediatric patients undergoing cardiac surgery with CPB. Ultimately, the results of this trial are likely to improve the care of pediatric cardiac surgical patients experiencing post-CPB bleeding, an under-studied yet high-risk patient population.
The goal of the study is to determine whether the use of Human Fibrinogen Concentrate (RiaSTAP) will decrease blood loss and the need for component blood therapy in neonates and infants undergoing cardiopulmonary bypass.
The investigators primary objective is to determine if acute normovolemic hemodilution (ANH) for pediatric cardiac surgical patients decreases the volume of blood products transfused during surgery and the immediate post-operative period as compared to usual care. This study will enroll 24 pediatric heart surgery patients, aged 6 months to 3 years old undergoing either ANH prior to initiating cardiopulmonary bypass or the standard of care procedures for the use of cardiopulmonary bypass.
Blood transfusion is nearly always needed during open heart surgery in children less than 15 kg (35 pounds). The purpose of the red blood cells in the blood is to deliver oxygen to the organs and tissues of the body. Stored blood undergoes some changes that may make it less effective in achieving this goal. The purpose of this study is to see if restoring important energy molecules (ATP and 2,3,DPG) in stored red blood cells before they are transfused, with a rejuvenating solution (Rejuvesol), offers any advantages to children over standard blood transfusion. This is a Food and Drug Administration (FDA) approved process that is described by the American Association of Blood Banks for prolonging blood storage but not used for everyday transfusions. The investigators want to use this process to improve blood transfused to children undergoing heart surgery. Although Rejuvesol has been previously approved by the FDA, it is not routinely used to prepare standard blood transfusions to children undergoing surgery. Use of Rejuvesol in this study is considered investigational. This is a pilot study and data will be collected for future protocol development.
Purpose: -To evaluate the peri-operative communication between families and the pediatric cardiac surgery team. Method: -In this study the investigators plan to utilize structured interview and survey of parents/legal guardians and health care providers of children undergoing cardiac surgery in the United States of America.
This is a prospective, randomized, open-label, blinded-evaluator study that will evaluate the effectiveness of a surgical sealant (CoSeal) composed of biocompatible polyethylene glycol on the formation of mediastinal and pericardial adhesions in children undergoing staged surgical reconstruction (potential procedures include: Blalock-Taussig Type Operation, Classical Glenn Procedure, Bidirectional Glenn Procedure, Norwood). Additionally, bleeding will be evaluated by drainage post-operatively through surgical site drainage output.
Cardiac surgery requiring use of a heart-lung machine, also known as cardiopulmonary bypass (CPB) can induce abnormalities in blood coagulation (clotting) that lead to excessive blood loss during and after operation. While of significant concern in adults, this problem takes on even greater importance in children due to the simple fact that they have a smaller blood volume. It is well known that if a child has previously undergone a heart operation, they are at increased risk of bleeding should more cardiac surgery be required ("reoperation"). The processes regulating blood coagulation are extraordinarily complex, and little is known about the exact mechanisms that contribute to the increased bleeding associated with cardiac reoperation in children. Rotational thromboelastometry (ROTEM®) is a technology that can provide, at the bedside, detailed information about coagulation abnormalities. While not currently approved for general use in the United States, in Europe ROTEM® has been used to guide administration of the blood products in surgery based upon determination of specific coagulation abnormalities. Importantly, there is now evidence that guidelines for transfusion therapy based on ROTEM® reduce transfusion requirements thus decreasing patient exposure to blood products. Whether the use of ROTEM® has potential benefit for pediatric cardiac surgical patients has not been studied. Accordingly, the present study was designed to provide preliminary data comparing coagulation profiles between children undergoing cardiac reoperation to those having primary procedure. The investigators hypothesize that ROTEM® analysis will detect a pattern of impaired coagulation in children undergoing reoperation. The overall objective of the four assays of ROTEM® analysis therefore, is to provide information that can be used to devise a rational transfusion protocol for pediatric cardiac surgical subjects.
Cardiac surgery induces a measurable stress response in patients which leads to increased morbidity and mortality post-operatively. Through clinical observation, anesthesiologists have determined that varying the combinations of anesthesia drugs used during surgery and just after reduces the stress response, and by extension, morbidity and mortality. However, only a few studies have explored this phenomenon scientifically.
Lack of bloodflow to the heart and brain when the heart is stopped during heart surgery can cause damage to those organs. We hypothesize that a single dose of erythropoietin prior to the heart bypass portion of surgery may protect the infant human heart and brain from injury. This randomized clinical trial will involve 120 children, age 6 weeks to 18 years, requiring heart bypass surgery for congenital heart defects.
In this study the focus will be on correlating the levels of platelet activation markers (proteins that are released when blood cells are activated)to the duration of cardiopulmonary bypass, temperature during cardiopulmonary bypass and the weight of the patient.
The current method of evaluating the surgical repair during surgery is limited to echocardiography (a noninvasive diagnostic procedure that uses ultrasound to study the structure and motions of the heart) or an invasive procedure called cardiac catheterization. The SPY imaging system makes use of the fluorescence properties of indocyanine green (ICG) to obtain high quality images in blood vessels. ICG is a green dye used to test heart output. The use of the SPY imaging system during surgery may provide valuable information regarding successful vessel connection and the area remaining unblocked. This study will compare the results of images to echocardiography and conventional angiography results. With SPY imaging, congenital heart surgeons would be able to check the quality of the procedure and revise, redo or perform additional procedures as dictated by the images before the patient leaves the operating room.
First, we, the researchers, hope to find out the PCT response to heart surgery in children by taking blood before surgery and each day for four days after surgery. These blood draws will help us figure out the typical Procalcitonin (PCT) response, the normal increase in PCT after heart surgery, and when the PCT level returns to baseline. Second, we, the researchers, hope to determine the accuracy of PCT as a marker of infection. Hypothesis Our hypothesis is that Procalcitonin is superior to other currently used markers of infection and will prove to be a clinically useful tool for evaluation of infection in children following cardiac surgery.
The purpose of this study is to look at a standardized methadone-based enhanced recovery after surgery protocol following pediatric cardiac surgery. This study will consist of randomly assigning children to receive the methadone-based recovery procedures or to receive current standard of care recovery procedures. Randomly assigning means that there is a 50/50 chance, like a coin flip, of being assigned to either research group.
The purpose of this study is to compare anti-inflammatory effects of two anti-fibrinolytic drugs (Tranexamic acid versus Epsilon-aminocaproic acid) in pediatric patients undergoing pediatric cardiac surgery.
Congenital Heart disease (CHD) is a leading cause of childhood death. Substantial morbidity and mortality relates to the postoperative course. For example, only 70% of neonates survive to hospital discharge after their first complex surgery for single ventricle heart disease. Adverse systemic inflammatory responses are highly exaggerated in some children postoperatively. This inflammation is pathological, results in leaky blood vessels and fluid overload, toxin release as well as cell damage contributing to lung, heart and kidney injury. Reasons why some children develop this amplified systemic inflammatory response after heart surgery while others do not are poorly understood. Mechanisms for how cardiopulmonary bypass and surgery drive this inflammation are also inadequately characterized. Currently, there are no existing methods to predict patients at high-risk for acute adverse postoperative complications, let alone adjust our management to mitigate these effects. Instead, our postoperative care approach is a one-size fits all, reactive process 'after' patients become inflamed or adverse events occur. Proteins in a patient's blood participate in and reflect acute inflammatory responses. In other pediatric conditions, protein biomarkers have been shown to both predict and monitor inflammation and adverse outcomes, and importantly predict responsiveness to anti-inflammatory drug therapies. This is the premise of precision medicine. Personalizing treatment to each individual patient. New technologies now allow the levels of tens of thousands of proteins to be measured from a few drops of blood. In this proposal the investigators will identify predictors of adverse events after heart surgery by quantifying protein levels and their changes after surgery. It is now possible to detect those proteins with the greatest variability in the postoperative course over time, and between patients, as well as those that are associated with adverse outcomes. The most informative proteins will yield insights into the causes of the inflammatory response. The investigators anticipate identifying protein plasma biomarkers in pathways associated with inflammation, metabolism, blood vessel function and the immune system as these may be key mechanisms involved. Advanced understanding of these mechanisms is critical to deriving targeted therapies to prevent or mitigate inflammatory responses. The investigators will also collect patient clinical data, such as age, cardiac anatomy, and duration of surgery. By combining this clinical information with blood protein profiles, the investigators will be able to develop a model predicting patients at highest risk for adverse postoperative events using machine learning approaches. The overarching goal of this research integrating clinical and bench research is ultimately to translate precision medicine approaches to the Cardiac ICU. Guiding personalized care of high-risk patients by enabling clinicians to anticipate outcomes and tailor decision-making at the bedside will undoubtably improve outcomes in CHD.
The goals of this study are: 1. To evaluate the neuroprotective effect of nitric oxide by measuring glial fibrillary acid protein (GFAP) before and after surgery. GFAP will be analyzed via an enzyme-linked immunosorbent assay (ELISA) kit. Patients will also be monitored post-operatively for delirium in the intensive care unit (ICU). 2. To evaluate the renal protective effect of nitric oxide by measuring neutrophil gelatinase-associated lipocalin (NGAL) before and after surgery. NGAL will also be analyzed via an ELISA kit. Patient creatinine will be monitored post-operatively. 3. To evaluate effect of nitric oxide on other ICU outcomes (invasive mechanical ventilation, days to extubation, ICU and hospital length of stay, and blood product administration).
The purpose of this Phase I study is to determine the safety of a drug called dexmedetomidine (DEX) as part of a balanced general anesthetic and sedative strategy for neonates and infants undergoing corrective cardiac surgery that requires the use of cardiopulmonary bypass for congenital cardiac problems. This study will also design and validate a dosing schema for the use of DEX as described above.
The purpose of this study is to determine if methadone improves postoperative pain control in pediatric patient's undergoing cardiac surgery.
Children (ages 0-12) that have heart surgery are often at a high risk of developing complications and have to be continuously monitored. Part of the routine care at UCLA includes using a monitor (continuous central venous oxygen saturation-ScvO2) to measure the amount of oxygen saturation in the tissues (indirectly) during surgery and in the intensive care unit. However, there is not much data on the use and effectiveness of this monitor in comparison to other monitors used for children. The purpose of this study is to further evaluate the effectiveness of the continuous central venous oxygen saturation (ScvO2) monitor in children and compare it with other monitors during a heart surgery. This is an observational study and the patients will not undergo any research specific procedures in the operating room (OR). The investigators will observe and record de-identified information, such as vital signs (heart rate, blood pressure, etc.), to evaluate the importance of the monitor. This study will also look at the demographics (age, gender, diagnosis, etc.) and treatments (type of surgery) received children undergoing heart surgery to improve quality of care. The investigators will also observe the same parameters in the ICU. The investigators hypothesized that low central venous saturations are associated with worse clinical outcomes.
Critically ill children, including children undergoing heart surgery, commonly develop elevated blood glucose (also known as "blood sugar") levels during their illness, which can lead to poor health outcomes and an increased risk of death. This study will examine the effectiveness of maintaining normal blood glucose levels at decreasing infections and improving recovery in young children undergoing heart surgery.
Acute kidney injury (AKI) is common in children after cardiac surgery with a reported incidence of 20-40%. Pediatric AKI has been found to be associated with important short and long-term adverse outcomes. A major challenge to management of AKI after cardiac surgery and cardiopulmonary bypass is the lack of early diagnostic markers. Current diagnostic criteria for AKI in children relies exclusively on elevation of serum creatinine concentration and oliguria. Both of these markers lack sensitivity and specificity, and result in delayed detection of kidney injury. This study aims to determine if UDP-glucose can be used as a urinary biomarker to detect subclinical acute kidney injury following pediatric cardiac surgery with cardiopulmonary bypass.
Cardiopulmonary bypass is done with a machine that does the work of the heart and lungs during open-heart surgery. This study is to determine if intravenous (i.v.) phenoxybenzamine is safe. This drug lowers the blood pressure, making it easier for the cardiopulmonary bypass machine to deliver blood and oxygen to all of the organs and tissues.
The investigators hypothesize that intermittent bolus doses of morphine and midazolam can provide the same pain control after pediatric cardiothoracic surgery as bolus doses plus infusions while using smaller total doses of both medications. The investigators will randomize patients to receive either morphine/midazolam as needed intermittently or morphine/midazolam drips plus intermittent doses to be received as needed. Pain scores will be recorded and total medications given will be recorded.
This Phase 1, multicenter, open-label, randomized, bupivacaine-controlled study is designed to evaluate the pharmacokinetics (PK) and safety of EXPAREL vs. bupivacaine HCl for postsurgical analgesia in pediatric subjects aged 0 to less than 6 years of age undergoing cardiac surgery, utilizing local infiltration analgesia (LIA).
The purpose of this study is to investigate the safety, tolerability and efficacy of octaplas in pediatric patients who require replacement of multiple coagulation factors. Replacement of multiple coagulation factors in pediatric patients with acquired deficiencies due to liver disease and/or in pediatric patients requiring cardiac surgery or liver surgery.