ELFRIEDE PAHL, MD

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This study examined heart transplant outcomes in children to see how different types of rejection—antibody-mediated rejection (AMR) and acute cellular rejection (ACR)—affected survival. Of 906 children who had a rejection episode, 261 had AMR, which led to lower survival rates in the first year compared to those with ACR. Specifically, the study found that AMR occurred sooner after the transplant and that younger patients and those with certain heart conditions faced a higher risk of losing their graft after AMR. Who this helps: This research benefits pediatric heart transplant patients and their doctors by identifying key risk factors for graft loss and suggesting closer monitoring for those at higher risk.

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The study looked at how helpful artificial intelligence (AI) imaging software is for diagnosing and treating patients with acute ischemic stroke in a telemedicine setting, specifically in rural areas of the Midwest. It found that the use of this software increased the rate of a common stroke treatment, intravenous thrombolysis, from 26.6% to 35%, but there was no significant change in overall treatment rates. Although the software seemed to help speed up treatment decisions, the researchers concluded that more extensive studies are needed to confirm its actual benefits. Who this helps: This helps patients experiencing strokes and the doctors who treat them.

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This study looked at the use of two different medication combinations after heart transplants in children to see which was better for preventing serious problems (like rejection and kidney issues). The researchers compared a combination of everolimus and low-dose tacrolimus to the standard combination of tacrolimus and mycophenolate in 211 children. They found that both treatments were similarly effective in preventing major transplant issues, but the everolimus group showed better kidney function and fewer cases of a viral infection called cytomegalovirus. Who this helps: This benefits children who have received a heart transplant and their doctors.

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Researchers studied how to improve pediatric liver transplants by creating a new online system that collects and analyzes important data from transplant centers. They found that this system, developed in partnership with SNEPT and the United Network for Organ Sharing, successfully displays information that can help hospitals improve their transplant practices and reduce complications. This matters because it helps ensure that more children receive the best possible care and outcomes during liver transplant surgery.

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Researchers created the International Intestinal Failure Registry (IIFR) to gather data on pediatric intestinal failure, a rare condition affecting children that lacks extensive research. Since its start in 2018, the registry has expanded to include 362 children from 26 centers around the world, which helps to fill gaps in knowledge about the condition and improve treatment approaches. Understanding more about pediatric intestinal failure can lead to better care and interventions for affected children. Who this helps: This helps patients with pediatric intestinal failure and their healthcare providers.

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This study looked at children with dilated cardiomyopathy, a serious heart condition, to see if changes in heart measurements over time could predict their risk of dying or needing a heart transplant. Among 794 children followed for about a year, 5% died, 15% received transplants, and 74% survived without a transplant. It was found that children who improved in a specific heart function measurement called LV fractional shortening had a lower risk of death or transplant, highlighting the importance of regular heart check-ups to monitor these changes. Who this helps: This benefits children with dilated cardiomyopathy and their doctors by guiding treatment decisions.

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This study investigated whether a blood test measuring donor-specific cell-free DNA can reliably indicate heart transplant rejection in both children and adults. Researchers looked at samples from 130 heart transplant recipients and found that when the donor fraction cell-free DNA level was at or above a threshold of 0.14%, it had a sensitivity of 67% and a specificity of 79% for detecting rejection. This is important because it means that the test can effectively rule out rejection, with a negative predictive value of 94%, providing a safer and less invasive option for monitoring transplant health. Who this helps: This helps heart transplant patients and their doctors by providing a reliable way to monitor for transplant rejection without needing invasive biopsies.

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This study looked at heart transplant patients with a condition called Fontan-associated protein-losing enteropathy (PLE) to see if they were at a higher risk of developing specific antibodies that can harm the transplanted heart. Researchers found that nearly 50% of patients with PLE had newly detected antibodies within a year after their transplant, compared to 30% of those without PLE, indicating that PLE might lead to more antibody-related complications, even if the overall difference wasn't statistically significant. This is important because it suggests that heart transplant recipients with PLE may need closer monitoring for potential complications. Who this helps: Patients with Fontan-associated PLE and their healthcare providers.

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The TEAMMATE trial studied two different drug combinations to prevent rejection in children who received heart transplants. It compared everolimus with low-dose tacrolimus against standard tacrolimus with mycophenolate mofetil over a 30-month period in young patients. The goal is to find out which combination works better and is safer in preventing serious issues related to heart transplants, such as rejection and kidney complications. Who this helps: This helps pediatric heart transplant patients and their doctors.

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This study looked at how common and severe heart tissue scarring (myocardial fibrosis) is in children with hypertrophic cardiomyopathy (HCM), a condition that makes the heart muscle abnormally thick. Researchers found that 71% of the 52 children studied had some level of fibrosis, with an average of 9% of the heart mass affected. This matters because understanding the extent of heart scarring can help doctors assess risks and develop better care plans for affected children. Who this helps: This helps pediatric patients with hypertrophic cardiomyopathy and their doctors.

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Researchers studied two different approaches to improve a technique for optimizing the arrangement of atoms in clusters. They discovered that one method, which avoids moving into already visited areas, worked better than the one that randomly reset the search, especially for certain types of atomic interactions. This improvement in atomic cluster optimization is important because it could lead to more efficient designs in materials science and nanotechnology. Who this helps: This benefits scientists and engineers working in materials research and development.

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Using national transplant registry data, researchers examined how often pediatric liver transplant centers use partial or living-donor grafts, and what effect this has on outcomes. Centers that more aggressively used these technical variant grafts had lower waitlist mortality for children. The findings argue for broader adoption of split and living-donor livers at pediatric transplant programs.

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This study looked at the role of cell-free DNA in blood from heart transplant patients to see if it could predict serious health problems after the surgery. Researchers analyzed over 4,000 blood samples from 388 patients and found that levels of nuclear cell-free DNA above 50 ng/ml were linked to higher risks of severe issues, such as cardiac arrest or death. This matters because measuring this DNA could help doctors identify patients who need more careful monitoring after a heart transplant. Who this helps: This helps heart transplant patients and their doctors by improving post-surgery care.

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This research looked at how COVID-19 affected children who are waiting for or have received heart transplants. Data from 225 patients showed that 42% of those waiting for a transplant and 21% of those who had already received one were hospitalized due to COVID-19, but 95% of patients improved within 30 days. While more heart transplant candidates and recipients were hospitalized compared to other kids, very few experienced severe illness or died. Who this helps: This benefits pediatric heart transplant patients and their families as well as medical professionals involved in their care.

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This study looked at the genetic factors in children with dilated cardiomyopathy (DCM) and how these factors relate to serious heart problems. Researchers reviewed 109 cases and found that nearly half (47%) of the children experienced life-threatening issues, with 42% needing a heart transplant and 5% dying. About 37% had harmful genetic variants, especially in genes important for heart muscle function, and teenage patients showed a higher rate of specific genetic changes. Who this helps: This research benefits patients and doctors by emphasizing the importance of genetic testing for children with DCM, regardless of family history.

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This study focused on finding the genetic causes of heart muscle disease (cardiomyopathy) in 528 children. Researchers found a genetic cause in 32% of the kids, and overall, they identified harmful genetic variations in 56% of the affected individuals. The findings are important because they highlight the importance of genetic testing for children with this condition and show that genetics can vary based on factors like age and family history. Who this helps: This helps patients and their families, as well as doctors who treat young patients with heart conditions.

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This study looked at how obesity and high cholesterol levels affect children and teenagers who receive heart transplants. Researchers found that 56% of the 6,291 patients studied had a normal weight at the time of their transplant, but those who were obese were 19% more likely to lose their transplant. Additionally, poor cholesterol levels significantly increased the risk of heart problems and transplant loss. This matters because addressing obesity and cholesterol issues in young heart transplant patients could improve their chances of a successful recovery. Who this helps: This helps pediatric patients and their doctors.

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This study looked at how well donor fraction cell-free DNA (DF cfDNA) can help detect and predict heart transplant rejection in patients. Researchers analyzed 835 blood samples from 269 patients and found that those with clinical rejection had a median DF cfDNA level of 0.43%, which is significantly higher than the 0.10% found in healthy controls. The results show that measuring DF cfDNA can effectively predict rejection and serious heart issues, which is crucial for improving patient care after transplantation. Who this helps: This helps heart transplant patients and their doctors by providing better tools to monitor for rejection and prevent serious complications.

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This study looked at the heart health of children who had received heart transplants, focusing on factors like diet, exercise, and blood pressure. It involved 110 patients and found that most had good heart health scores, generally similar to healthy kids in the U.S., though some areas, like blood sugar levels, were worse in the transplant patients. Understanding heart health in these children is important because it can help improve their long-term outcomes. Who this helps: This helps pediatric heart transplant patients and their healthcare providers.

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This study looked at the genetic causes of cardiomyopathy in children, finding that a significant portion—21%—could be diagnosed with genetic testing even if they had not previously undergone tests. Among the 152 children studied, 41% had a family history of the condition, and genetic testing provided positive results for nearly half of those tested. This research highlights the need for consistent genetic testing practices, which can lead to better understanding and treatment of the disease. Who this helps: This benefits children with cardiomyopathy and their families by identifying genetic factors that may influence treatment and prognosis.

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This study looked at the survival rates of children with congenital heart disease and heterotaxy syndrome who received heart transplants between 1993 and 2018. Out of 4,814 children studied, only 196 had heterotaxy, and while their one-year survival rate was lower (77.2% compared to 85.1% for those without heterotaxy), survival rates have improved over the years, especially in the recent transplant era. Understanding these differences helps doctors better manage the care of children with heterotaxy, particularly regarding their risk of infections and severe rejection after surgery. Who this helps: Children with congenital heart disease and heterotaxy, as well as their healthcare providers.

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This study focused on measuring the total volume inside the skull, called total intracranial volume (TIV), which is important for understanding brain diseases. Researchers developed a new automatic method using MRI images that accurately creates a mask of TIV and can also generate corresponding CT images. Their method provides results that closely match traditional reference images and is faster than older techniques, saving significant time in analysis. Who this helps: This benefits doctors and researchers studying neurodegenerative diseases by providing quicker and more accurate measurements.

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This study looked at pediatric patients who received heart transplants after being helped by a biventricular assist device (BiVAD), finding that these patients had significantly worse outcomes. Specifically, the likelihood of their new heart lasting for at least one year was only 8.5 times worse compared to those who did not use a VAD before their transplant. However, long-term survival rates improved after five and ten years. Who this helps: This research benefits doctors and medical teams caring for young heart transplant patients.

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Researchers studied the use of the SynCardia 50 cc Total Artificial Heart to help a young child awaiting a heart transplant. The child, who had a very small body size, was successfully supported by the artificial heart for 278 days before receiving a transplant. This is significant because it shows that even the smallest pediatric patients can benefit from mechanical devices during their wait for a heart, improving their chances of survival. Who this helps: This helps pediatric patients needing heart transplants.

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This study looked at how quickly patients with different types of heart conditions normalize their heart function after a heart transplant, focusing on those with single ventricle hearts compared to those with dilated cardiomyopathy. It found that only 28% of patients with a Fontan procedure normalized their heart function by six months after surgery, compared to 85% of patients with dilated cardiomyopathy. This delay in recovery can help doctors identify which patients need extra attention after their transplant to ensure they are healing properly. Who this helps: This research benefits doctors and healthcare providers managing the care of pediatric heart transplant patients.

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This study looked at children under 18 who received a left ventricular assist device (LVAD) to help their hearts function better. Researchers found that about 55% of these children experienced right heart failure (RHF) within the first month after getting the LVAD, which significantly increased their risk of death. Specifically, those with RHF had over three times the risk of dying on the device after one month and nearly seven times the risk after three months. Who this helps: This information is valuable for doctors treating children with heart failure, as it highlights the risks associated with LVAD implantation.

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This study looked at how measuring specific DNA from the donated heart (donor fraction cell-free DNA or cfDNA) can help detect rejection in heart transplant patients without needing a biopsy. Researchers examined 241 heart transplant patients, both children and adults, and found that higher levels of donor cfDNA were linked to acute rejection, with significant differences noted between rejected and non-rejected cases—specifically, a p-value of 0.02 for acute cellular rejection and p-values of 0.04 and 0.05 for antibody-mediated rejection. This is important because it suggests that monitoring donor cfDNA could provide a simpler, less invasive way for doctors to identify rejection, improving patient care. Who this helps: This helps heart transplant patients and their doctors by potentially making the monitoring process less invasive and more efficient.

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Researchers created a mobile app to help organ procurement and transplant teams communicate better. They found that after using the app, there was a 35% increase in the number of organs successfully transplanted and a 50% reduction in the time it took to get from the initial organ offer to the actual transplant. This is important because improved communication helps ensure that more organs are used effectively, reducing waste and delays in life-saving procedures. Who this helps: Patients waiting for organ transplants benefit the most from this improved process.

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This study looked at two blood-thinning medications, low-molecular-weight heparin (LMWH) and warfarin, to see which one is better at preventing blood clots in children with serious heart problems caused by Kawasaki disease. They analyzed data from 383 patients and found that after about 2.5 years, the chances of developing a blood clot were 5.7% for those on LMWH, 6.7% for those on warfarin, and 20.6% for those with no blood thinner at all. This matters because both medications effectively reduce thrombus risk in these children, but doctors can choose between them based on other health factors and patient wishes. Who this helps: This helps children recovering from Kawasaki disease and their healthcare providers.

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This study examined the long-term complications in children who developed coronary artery aneurysms (CAAs) after having Kawasaki disease, a condition that can cause heart problems. Researchers analyzed data from 1,651 patients and found that those with high CAAscores (10 or more) had a 20% risk of significant narrowing of the arteries, 18% risk of blood clots, and 14% chance of serious heart issues within 10 years. In contrast, no complications occurred in patients with lower CAAscores. Understanding these risks can help doctors better monitor and treat children who have had Kawasaki disease and are at risk for heart issues. Who this helps: This helps patients who had Kawasaki disease and their doctors.

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Researchers at the Mayo Clinic studied how the COVID-19 pandemic impacted the use of telestroke services for patients experiencing strokes. They found that the number of telestroke activations dropped by 50%, from 142 patients before the pandemic declaration to only 71 patients afterward. Additionally, the proportion of patients receiving urgent stroke treatments decreased from 44.4% to 33.3%, highlighting that many people may have avoided seeking critical medical help during the pandemic. Who this helps: This information benefits stroke patients and healthcare providers, emphasizing the need for patients to seek timely treatment despite public health concerns.

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This study looked at how pediatric heart transplant centers monitor a serious condition called cardiac allograft vasculopathy (CAV), which can lead to death after heart transplants in children. Researchers found that 14% of the over 3,400 children evaluated had CAV detected, with those screened for symptoms having a much higher detection rate (29%) compared to routine screenings (4%). Understanding these screening practices is important because it can help improve patient outcomes and reduce unnecessary invasive procedures, as the overall survival rate after detecting CAV varied significantly based on how it was found. Who this helps: This benefits doctors and pediatric heart transplant patients.

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This study looked at how pediatric heart doctors and surgeons decide whether to implant heart-assist devices in children. The researchers sent a survey to 132 specialists and found that agreement on who should receive a device varied significantly based on factors like the patient’s age and health condition. For example, nearly all doctors (97%) agreed to offer the device to a teenager on a ventilator with a heart condition, while just 11-25% would offer it to stable infants on medication, highlighting inconsistencies that can affect patient access to these treatments. Who this helps: This research helps doctors and patients by revealing differences in treatment options for children who need heart support.

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This study looked at the survival rates of infants under 10 kg who were on mechanical support as they waited for a heart transplant. Researchers found that those using a ventricular assist device (VAD) had a much better chance of surviving three months (74.3%) compared to those on extracorporeal membrane oxygenation (ECMO) (48.6%). The results highlight the need for better support devices for very small infants, especially those born with congenital heart disease. Who this helps: This helps infants with heart failure and their families, as well as doctors treating them.

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This study looked at how pediatric heart transplant doctors decide which children should be put on the waiting list for a heart transplant. The research found that the survival rates considered acceptable for listing varied widely, with a median one-month survival rate of 73% and a one-year survival rate of 70%. It also revealed differences in decision-making: all doctors surveyed would list a healthy 12-year-old for a transplant, but only 30% would list a patient with multiple health issues following a heart surgery. Who this helps: This research helps pediatric patients needing heart transplants and their families by highlighting inconsistencies in how transplant eligibility is determined.

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This study looked at how severe coronary artery problems are in infants with Kawasaki disease compared to older children. Researchers found that infants had much more severe abnormalities, as shown by a higher average z-score (3.37 for infants versus 2.07 for older kids) and a greater rate of serious aneurysms (11% of infants had medium aneurysms compared to 3% of older children, and 8% of infants had giant aneurysms compared to less than 1% of older children). This is important because more severe coronary issues in infants mean they need careful long-term heart health monitoring. Who this helps: This helps infants with Kawasaki disease and their healthcare providers.

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This study looked at how well young adults who received heart transplants as children adjust to adult healthcare. Researchers tested a 4-month support program aimed at helping these individuals manage their health better but found no significant improvements in their treatment adherence or appointment attendance compared to those who received standard care. Both groups maintained good levels of medication adherence, but attendance at follow-up appointments dropped over time. Who this helps: This research assists healthcare providers in understanding the challenges faced by young adult heart transplant recipients during their transition to adult care.

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This study examined how effective a special heart scan called cardiovascular magnetic resonance (CMR) is at diagnosing acute myocarditis in children. Researchers analyzed data from 23 children diagnosed with this condition and found that their heart tissue showed significant abnormalities compared to 39 healthy kids, with specific measurements indicating clear differences (for example, native T1 levels were 1098 ms in patients versus 990 ms in controls). These advanced imaging techniques improved the accuracy of diagnosis beyond traditional methods, meaning they can help identify more cases of myocarditis in children. Who this helps: This helps pediatric patients with suspected myocarditis and their doctors.

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This research paper looked at how pediatric heart transplants are currently performed around the world. It found that the chances of surviving while waiting for a transplant and living for many years after the surgery have improved, with new strategies allowing more infants to receive transplants. The average heart transplanted in children lasts between 13 to 22 years, but there are still challenges like infections and organ rejection that can occur after the transplant. Who this helps: This helps patients needing heart transplants and their families by providing better understanding and improved care options.

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This study focused on children with two types of heart conditions: dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM). Researchers found that out of 288 children enrolled, nearly 40% who had symptomatic cardiomyopathy either die or need heart transplants within two years of diagnosis. The study aims to identify specific blood markers that could help improve care and predict outcomes for kids suffering from these serious heart conditions. Who this helps: This benefits patients with pediatric cardiomyopathy and their doctors.

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The VANISH study looked at young people with a genetic condition called hypertrophic cardiomyopathy (HCM), which affects the heart's ability to pump blood. Researchers found that among 178 participants, most were young and had mild symptoms, with many showing normal heart function; specifically, 92% of them had no significant limitations in their daily activities. This is important because it helps understand the characteristics of this group and how they differ from older patients in previous studies, potentially improving treatment strategies for younger patients with this condition. Who this helps: Young patients with sarcomeric gene mutations and their doctors.

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This study looked at young adults who had heart transplants and are moving from pediatric to adult healthcare. Researchers found that, on average, the participants were 21 years old, and while there were no big differences in medication use or adherence between the two groups at the start, both groups had limited knowledge about their heart transplant and struggled with self-management skills. This matters because improving knowledge and self-management can lead to better health outcomes for young adults transitioning to adult care. Who this helps: This helps young adults with heart transplants and their healthcare providers.

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This study looked at how nutrition affects children with dilated cardiomyopathy (DCM), a heart condition. Out of 904 children studied, 23.7% were malnourished, 13.3% were obese, and 63.1% had normal weight. The research found that malnourished children had a higher risk of death, more heart failure cases, and other serious health problems, while obesity did not seem to impact survival. Understanding these differences is crucial for improving care and treatment for these young patients. Who this helps: This helps pediatric patients with DCM and their doctors.

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This study looked at how radon, a noble gas, changes from solid to liquid. Researchers found that the melting temperature is around 200 Kelvin (about -73 degrees Celsius), which closely matches an older measurement of 202 Kelvin from 1909. This is important because it confirms historical data and helps improve our understanding of radon's properties. Who this helps: This helps scientists and researchers studying gases and materials.

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In October 2017, experts gathered in Seattle for the first global summit focused on the challenges and debates surrounding heart transplants in children. They discussed five key topics where there is disagreement, recognizing that many hospitals perform very few pediatric heart transplants each year, which leaves room for improvement through shared knowledge. This collaboration aims to tackle complex issues in pediatric heart transplantation and hopes to lead to more effective care for children with severe heart problems. Who this helps: This helps patients, doctors, and families dealing with pediatric heart failure.

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This study looked at how pediatric heart transplant centers manage their patients to see if their practices are similar or different. Researchers found that most centers use the same medications, like tacrolimus and mycophenolate mofetil, for long-term care after transplant, with over 95% reporting these. Additionally, more than 70% of centers are open to changing their practices and 97% are interested in joining a research trial to improve patient care. Who this helps: This helps children undergoing heart transplants and their doctors by promoting uniform treatment practices and research opportunities.

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This study looked at the survival rates of children with dilated cardiomyopathy (DCM) over 20 years, comparing two groups diagnosed in different decades. Researchers found that the death rate for these children was lower in the later group (9%) compared to the early group (18%), even though the rates of heart transplants and recovery from heart problems were similar in both groups. This improvement in survival suggests that advances in care, not just heart transplants, have positively impacted outcomes for these kids. Who this helps: Children with dilated cardiomyopathy and their families.

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This study looked at the energy holding together atoms in a new element called copernicium, finding that it has a cohesive energy of -36.3 kJ per mole. This number closely matches previous experimental estimates of -38 kJ per mole and suggests that the shape of copernicium's atomic structure is very similar to other known structures. Understanding these properties is important for scientists as it helps refine techniques for studying new elements. Who this helps: Researchers and scientists studying superheavy elements.