Apixaban Dosing Patterns Versus Warfarin in Patients With Nonvalvular Atrial Fibrillation Receiving Dialysis
Among patients with nonvalvular AF undergoing dialysis, warfarin is associated with an increased risk of bleeding compared with apixaban.
KEY FINDINGS: Among patients with nonvalvular AF undergoing dialysis, warfarin is associated with an increased risk of bleeding compared with apixaban. The risk of bleeding with below-label apixaban was not detectably less than with label-concordant dosing. Label-concordant apixaban dosing is associated with a mortality benefit compared to warfarin. Label-concordant dosing, rather than reduced-label dosing, may offer the most favorable benefit-risk trade-off for dialysis patients with nonvalvular AF.
BACKGROUND: Comparison of clinical outcomes across anticoagulation regimens using different apixaban dosing or warfarin is not well-defined in patients with nonvalvular atrial fibrillation (AF) who are receiving dialysis. This study compared these outcomes in a US national cohort of patients with kidney failure receiving maintenance dialysis.
DETAILS: Patients receiving dialysis represented in the US Renal Data System database 2013-2018 who had AF and were treated with apixaban or warfarin. Cox proportional hazards models with inverse probability of treatment weighting. Analyses simulating an intention-to-treat (ITT) approach as well as those incorporating censoring at drug switch or discontinuation (CAS) were also implemented. Inverse probability of censoring weighting was used to account for possible informative censoring. Among 17,156 individuals, there was no difference in risk of stroke/systemic embolism among the label-concordant apixaban, below-label apixaban, and warfarin treatment groups. Both label-concordant (HR, 0.67 [95% CI, 0.55-0.81]) and below-label (HR, 0.68 [95% CI, 0.55-0.84]) apixaban dosing were associated with a lower risk of major bleeding compared with warfarin in ITT analyses. Compared with label-concordant apixaban, below-label apixaban was not associated with a lower bleeding risk (HR, 1.02 [95% CI, 0.78-1.34]). In the ITT analysis of mortality, label-concordant apixaban dosing was associated with a lower risk versus warfarin (HR, 0.85 [95% CI, 0.78-0.92]) while there was no significant difference in mortality between below-label dosing of apixaban and warfarin (HR, 0.97 [95% CI, 0.89-1.05]). Overall, results were similar for the CAS analyses.
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Source: Wetmore, J. B., Weinhandl, E. D., Yan, H., et al. (2022). Apixaban Dosing Patterns Versus Warfarin in Patients With Nonvalvular Atrial Fibrillation Receiving Dialysis: A Retrospective Cohort Study. XXXXXXXX. 2022; 80(5): 561-563. Published: November, 2022. DOI: 10.1053/j.ajkd.2022.03.007.
Palliative Extracorporeal Membrane Oxygenation Decannulation: An Ethical, Evidence-Based Approach
A structured approach to ECMO de-escalation and decannulation can reduce practice variability while incorporating patient and family preferences. Proactive symptom management may improve the patient and family experience, supporting a more comfortable and dignified end-of-life journey.
KEY FINDINGS: A structured, interprofessional approach to palliative ECMO de-escalation can reduce variability in end-of-life practice and support more consistent symptom management and communication. Incorporating patient and family preferences into the process, together with proactive symptom management and staff debriefing, was associated with a more comfortable and dignified end-of-life experience in this quality-improvement setting.
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is an invasive, potentially lifesaving therapy associated with complications involving multiple organ systems. When ECMO is no longer considered beneficial, de-escalation or decannulation may be required as part of a transition to comfort-focused care and natural death. At a tertiary care facility with 64 beds using ECMO, variability was identified in ECMO initiation, communication with patients and families, determination of nonbeneficial therapy, and symptom management during de-escalation.
DETAILS: This quality-improvement project integrated palliative care, reviewed existing literature on best practices, and established an interprofessional task force focused on ECMO de-escalation. New clinical guidelines were developed to provide a consistent, evidence-based framework for communication, decision-making, symptom management, and de-escalation/decannulation. The initiative was designed to reduce practice variability while improving the experience of patients, families, and clinicians during transition to comfort-directed care.
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Implementation of the guidelines decreased practice variability and reduced patient and family stress and discomfort during ECMO de-escalation and decannulation. Team members reported decreases in symptoms of secondary trauma and moral distress associated with these situations. They also reported improved delivery of end-of-life care, including family education and support, patient advocacy, and symptom management. Family members valued greater attention to both patient and family well-being, while structured staff debriefings supported reflection and identification of opportunities for improvement.
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Source: Arbour, R., Abate, M., Garcia, O., et al. Palliative Extracorporeal Membrane Oxygenation Decannulation: An Ethical, Evidence-Based Approach. Critical Care Nurse. 2026; 46(4): 17-28. Published: August 1, 2026. DOI: 10.4037/ccn2026166.
Neovascular Glaucoma Associated With Increased Long-Term Mortality and Systemic Morbidity
A large TriNetX cohort study found that neovascular glaucoma was associated with increased long-term risks of mortality and systemic complications beyond underlying retinal vascular disease. At 10 years, NVG in patients with proliferative diabetic retinopathy was associated with higher mortality and end-stage renal disease, while NVG in patients with central retinal vein occlusion was associated with higher mortality and stroke risk. The findings highlight the potential value of coordinated ophthalmic and systemic care when NVG develops.
KEY FINDINGS: The development of NVG was associated with additional long-term systemic morbidity and mortality beyond the underlying PDR or CRVO in this large retrospective cohort. The strongest associations included mortality and ESRD among patients with PDR and mortality and stroke among those with CRVO. The findings suggest that development of NVG may identify patients with substantial systemic vascular risk and support closer coordination between ophthalmic and other medical specialties. Because the study was retrospective and based on electronic health records, the observed associations should not be interpreted as evidence that NVG itself directly causes these systemic outcomes.
BACKGROUND: Neovascular glaucoma (NVG) is a serious ocular complication of retinal vascular disease, including proliferative diabetic retinopathy (PDR) and central retinal vein occlusion (CRVO). Although NVG is primarily recognized for its effects on vision and intraocular pressure, less is known about whether its development is associated with additional long-term systemic health risks. This multicenter retrospective cohort study evaluated mortality and major systemic outcomes among adults with PDR or CRVO who did or did not subsequently develop NVG.
DETAILS: The investigators used the TriNetX Research Network, a deidentified electronic health record database containing information from more than 177 million patients across more than 150 healthcare organizations worldwide. Adults older than 40 years with PDR or CRVO were identified and compared according to whether NVG subsequently developed. Patients were propensity-score matched 1:1 based on demographic characteristics and comorbidities. Outcomes were assessed at 1, 5, and 10 years and included all-cause mortality, stroke, myocardial infarction (MI), end-stage renal disease (ESRD), and deep-vein thrombosis (DVT). A total of 1,278 patients with PDR and NVG were matched with 1,278 patients with PDR without NVG. The study also evaluated patients with CRVO and NVG compared with matched CRVO patients without NVG, as well as an NVG cohort compared with a cataract control cohort.
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Among patients with PDR, development of NVG was associated with higher 10-year mortality (HR, 1.34; 95% CI, 1.14-1.57) and ESRD (HR, 1.43; 95% CI, 1.23-1.67) compared with PDR without NVG. Ten-year survival was 60.4% in the PDR + NVG group compared with 68.4% in the PDR without NVG group. Among patients with CRVO, those who developed NVG had higher 10-year mortality (HR, 1.61; 95% CI, 1.17-2.20) and stroke risk (HR, 1.86; 95% CI, 1.19-2.90). Differences in MI and ESRD were not statistically significant in this comparison, and DVT risk was also not significantly different. When PDR + NVG was compared directly with CRVO + NVG, the PDR + NVG group had higher 10-year risks of mortality (HR, 1.56; 95% CI, 1.17-2.07), MI (HR, 1.94; 95% CI, 1.13-3.32), and ESRD (HR, 4.04; 95% CI, 2.43-6.73). Compared with the cataract control cohort, NVG was associated at 10 years with higher risks of mortality (HR, 2.66; 95% CI, 2.40-2.94), stroke (HR, 2.17; 95% CI, 1.85-2.54), MI (HR, 1.89; 95% CI, 1.60-2.23), and ESRD (HR, 3.34; 95% CI, 2.89-3.88).
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Source: Margolis, R., Vasu, P., and Dorairaj, S. K. Long-Term Risk of Mortality and Systemic Morbidity in Neovascular Glaucoma: A Multicenter Retrospective Cohort Study. Ophthalmology Glaucoma. 2026; 9(5): 517-526. Published: September-October, 2026. DOI: 10.1016/j.ogla.2026.01.017.
Manual Detorsion by Pediatric Emergency Physicians May Shorten Ischemia Time in Pediatric Testicular Torsion
A study found that manual detorsion performed by pediatric emergency physicians can shorten ischemia time in children with testicular torsion. The findings highlight the potential value of prompt bedside intervention while definitive surgical management is being arranged. Manual detorsion remains a temporizing measure and does not replace urgent surgery.
KEY FINDINGS: The study highlights manual detorsion as a potentially useful time-saving intervention in pediatric testicular torsion. Having trained pediatric emergency physicians perform the procedure may allow restoration of testicular blood flow sooner and reduce the interval to definitive treatment. Because testicular viability is time-dependent, incorporating prompt manual detorsion into emergency management may be clinically relevant when appropriate expertise is available. The procedure should be viewed as an emergency temporizing measure followed by definitive surgical management.
BACKGROUND: Testicular torsion is a time-sensitive urologic emergency in which prolonged interruption of testicular blood flow can result in irreversible ischemic injury. Although definitive management requires urgent surgical detorsion and orchiopexy, manual detorsion may provide temporary restoration of blood flow while the patient is being prepared for surgery. This study evaluated whether manual detorsion performed by pediatric emergency physicians could reduce the time that the testis remains ischemic in children with testicular torsion.
DETAILS: The study examined pediatric patients with suspected testicular torsion who underwent manual detorsion by pediatric emergency physicians before definitive operative management. The investigators assessed the time from emergency department presentation to restoration of testicular perfusion and compared outcomes according to whether manual detorsion was successfully performed. The analysis focused on the potential role of emergency physicians in initiating immediate treatment rather than waiting for transfer to the operating room. Manual detorsion was considered an adjunct to, rather than a replacement for, definitive surgical management.
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Manual detorsion performed by pediatric emergency physicians was associated with a shorter duration of testicular ischemia before operative treatment. Successful bedside detorsion allowed restoration of perfusion to occur earlier than would have been possible if treatment had been deferred until surgical exploration. The findings support the potential value of emergency physicians performing manual detorsion promptly when pediatric testicular torsion is suspected, particularly when operating-room preparation or surgical consultation may introduce additional delays. Definitive surgical exploration remains necessary because manual detorsion does not reliably correct the underlying torsion or prevent recurrence.
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Source: Rivera, T., Lozano, J., Maniaci, V., et al. Manual Detorsion by Pediatric Emergency Physicians Shortens Ischemia Time in Pediatric Testicular Torsion. Academic Emergency Medicine. 2026; 33(9): e70412. Published: September, 2026. DOI: 10.1111/acem.70412.
Irregularly Shaped Microplastics May Compromise the Kidney’s Glomerular Filtration Barrier
In a mouse study, irregularly shaped microplastic particles persisted in circulation, accumulated in the kidneys, and were detected in urine despite more than 99% of administered particles being excreted in feces. Irregular particles caused renal vascular and tubular lesions, capillary flow disturbances, and changes suggesting disruption of the glomerular filtration barrier. They also produced glomerular albumin hyperfiltration and increased proximal tubular albumin uptake. These effects were not observed with spherical microplastic particles, highlighting particle shape as a potentially important determinant of renal toxicity.
KEY FINDINGS: In this experimental mouse study, irregularly shaped microplastic particles demonstrated a different biological distribution and renal effect profile from spherical particles. Despite >99% of administered particles being excreted in feces, irregular fragments persisted in the circulation, accumulated in the kidneys, and were detected in urine. Renal exposure was associated with vascular and tubular lesions, capillary flow disturbances, and changes suggesting disruption of the glomerular filtration barrier. The findings indicate that microplastic morphology may be an important determinant of biological effects, although the clinical relevance to human kidney health remains to be established.
BACKGROUND: Human exposure to microplastics is widespread, but the biological effects of particle shape remain incompletely understood. Most experimental studies have used spherical particles, despite environmental microplastics commonly occurring as irregular fragments. This study compared spherical and irregularly shaped microplastic particles to determine whether particle morphology influences their distribution in the body and their effects on renal function.
DETAILS: Investigators administered labeled spherical and irregular microplastic particles to mice by oral gavage, either as a single dose or daily for 7 days. Microplastic distribution was evaluated in multiple organs, while renal effects were assessed using histochemistry and intravital multiphoton microscopy. Additional functional experiments were performed using isolated perfused mouse kidneys. Overall intestinal absorption was limited, with >99% of administered microplastic particles being eliminated in feces. However, irregular fragments remained detectable in the circulation for several days and accumulated in multiple organs following oral exposure.
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Irregular microplastic particles were detected in the urine as well as within renal blood vessels, glomeruli, and tubules. Their presence in the urine suggested that these particles could cross the glomerular filtration barrier. Within the kidney, irregular particles were associated with phagocytic cells. Functional studies demonstrated that irregular microplastics caused disturbances in capillary flow and produced lesions involving renal blood vessels and the tubular system. They also resulted in glomerular albumin hyperfiltration and increased proximal tubular albumin uptake, findings consistent with impairment of the glomerular filtration barrier. These effects were not observed following ingestion of spherical microplastic particles.
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Source: Triebel, H., De Luca, F., Baumann, S. J., et al. Irregularly Shaped Microplastic Particles Compromise the Integrity of the Glomerular Filtration Barrier of the Kidney. Kidney360. 2026; 7(8): 1750-1762. Published: May 12, 2026. DOI: 10.34067/KID.0000001215.
Fracture Risk Remains High and Largely Unaddressed After Kidney Transplantation
Kidney transplant recipients had a 21% 10-year fracture risk, unchanged over two decades. Twenty-eight percent of those with a fracture sustained another fracture, with the highest incidence at 6-12 months. Only 10% received anti-osteoporosis therapy and 17% underwent DXA within 1 year, highlighting an unmet need for post-fracture risk assessment and intervention.
KEY FINDINGS: Kidney transplant recipients continue to experience substantial fracture risk, with approximately one in five developing a fracture within 10 years after transplantation. Fracture rates remained largely unchanged over two decades, and an initial fracture was followed by a particularly high risk of another fracture. The limited use of anti-osteoporosis therapy and DXA assessment after fracture highlights an important gap in post-transplant bone health management.
BACKGROUND: Kidney transplant recipients remain at increased risk of fractures compared with the general population. However, the magnitude of this risk in the current transplant era and the likelihood of subsequent fractures after an initial event have not been fully characterized. This study evaluated post-transplant fracture risk and prognosis over two decades.
DETAILS: This retrospective cohort study included all adults who underwent a first single-organ kidney transplant between 2000 and 2022 in Denmark. Nationwide health registries provided demographic, diagnostic, procedural, prescription, transplantation, and mortality data. The study assessed cumulative incidence of first and subsequent fractures, with death treated as a competing risk, and examined fracture incidence across different transplant periods.
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The cohort comprised 3977 kidney transplant recipients, with a median age of 50 (40, 60) years; 1487 (37%) were female. Before transplantation, 503 (13%) had a history of any fracture and 176 (4%) had experienced a major osteoporotic fracture.
Among 3977 kidney transplant recipients, 788 experienced a post-transplant fracture. The 10-year risk of any fracture was 21% (95% confidence interval 20–23). Crude fracture incidence remained unchanged across the study period from 2000 to 2022, although age- and sex-standardized estimates showed a slight decline. Fractures occurred predominantly at peripheral skeletal sites.
Twenty-eight percent of patients who sustained a fracture experienced a subsequent fracture, with the greatest incidence occurring 6–12 months after the initial event. The 2-year cumulative incidence of any subsequent fracture was 13% (95% CI 11–16), increasing to 24% (95% CI 21–28) at 5 years.
Despite the fracture burden, only 10% of patients received anti-osteoporosis therapy within 1 year after a fracture, and 17% underwent dual-energy X-ray absorptiometry (DXA) within 1 year.
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Source: Ystrøm, I. K., Christiansen, C. F., Ivarsen, P., et al. Fracture Risk After Kidney Transplantation: Unchanged and Unaddressed: A Registry-Based Cohort Study Across Two Decades. Clinical Kidney Journa. 2026; 19(3): sfag029. Published: March, 2026. DOI: 10.1093/ckj/sfag029.
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