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Browse the failure-mode index

12,241 real negative results, null findings, and replication failures in Medicine. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportMedicine

CT-derived hepatic extracellular volume fraction for the assessment of graft rejection after liver transplantation: a retrospective observational study.

Asmundo L, Pansini V, Monti CB et al. · 2026 · Abdominal radiology (New York)

To evaluate the diagnostic performance of hepatic extracellular volume (ECV) fraction derived from delayed single-energy CT for identifying graft rejection in liver transplant recipients and its added value over clinical parameters. This…

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Replication FailureMedicine

Role of Case Management for Improving Cardiac Rehabilitation Participation in Women: A RANDOMIZED CONTROLLED TRIAL.

Khadanga S, Yant B, Savage PD et al. · 2026 · Journal of cardiopulmonary rehabilitation and prevention

Purpose Despite the benefits, cardiac rehabilitation (CR) is underutilized, particularly in women. Case management (CM) has been shown to reduce the risk of cardiovascular disease and improve health outcomes. The purpose of this study was…

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Negative / Null Result ReportMedicine

Predictive value of ultrasound-measured tongue base thickness for upper airway obstruction during monitored anesthesia care: a single-center prospective observational study.

Kikkawa K, Takeuchi M, Sakaguchi D et al. · 2026 · Journal of anesthesia

Purpose Monitored anesthesia care (MAC) is increasingly used for various procedures, but sedation-related upper airway obstruction may lead to hypoxemia or conversion to general anesthesia. This study evaluated whether preoperative tongue…

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Negative / Null Result ReportMedicine

Association between arterial to end-tidal carbon dioxide gradient and prehospital hemodynamic status in patients with moderate-to-severe traumatic brain injury.

Navarro LP, Combes X, Galinski M et al. · 2026 · BMC emergency medicine

Introduction We aimed to assess the relationship between arterial partial pressure of carbon dioxide (PaCO 2 ) and end-tidal carbon dioxide (EtCO 2 ) according to three prehospital hemodynamic status and to evaluate whether…

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Negative / Null Result ReportMedicine

Effects of high oleic expeller-pressed soybean meal on milk fat production and fatty acid digestibility in lactating dairy cows undergoing a milk fat depression challenge.

Burtnett SL, Bomberger RA, Harvatine KJ · 2026 · Journal of dairy science

Oleic acid has a lower risk for biohydrogenation-induced milk fat depression (MFD) than linoleic acid and can act as an emulsifier to aid fatty acid (FA) digestion in the small intestine. Our objective was to evaluate the effect of high…

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Negative / Null Result ReportOpen accessMedicine

Prognostic Performance of a Modified TRI-SCORE Incorporating RV-PA Uncoupling After Transcatheter Tricuspid Valve Interventions.

Alachkar MN, Schlegl J, Bannehr M et al. · 2026 · Journal of cardiovascular development and disease

Background The TRI-SCORE was developed to predict mortality after tricuspid valve surgery and has demonstrated prognostic value in patients undergoing transcatheter tricuspid valve interventions (TTVI). Right ventricular-pulmonary arterial…

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Negative / Null Result ReportMedicine

The Effect of a Series of Lower Limb Pressotherapy Treatments on the Range of Motion of the Lower Limb Joints, Lower Limb Circumferences, and Body Composition in Young, Healthy Women.

Ptaszek B, Kurek O, Podsiadło S · 2026 · Lymphatic research and biology

Purpose In times when health and physical activity are gaining in value, the search for effective methods to support fitness and improve quality of life is becoming a priority. One of the therapies that is gaining increasing popularity is…

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Negative / Null Result ReportMedicine

Anthropometric differences between twins at birth and their association with later cognitive performance.

Eves R, Deppe M, Kandler C et al. · 2026 · Journal of child psychology and psychiatry, and allied disciplines

Background Past studies indicate significant associations between birth anthropometrics, such as relative birthweight or head circumference, and later cognitive performance. Using twin data, we investigated whether these associations are…

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Negative / Null Result ReportMedicine

Prognostic dynamics of pathological complete response and ctDNA clearance after neoadjuvant/perioperative immunotherapy in cancer: a reconstructed individual patient analysis.

Garitaonaindia Y, Witteveen S, Dionisio E et al. · 2026 · Journal of the National Cancer Institute

Background Pathological complete response (pCR) and circulating tumor DNA (ctDNA) clearance are increasingly used as intermediate endpoints in neoadjuvant and perioperative immunotherapy (IO) trials. However, whether complete pathological…

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Negative / Null Result ReportOpen accessMedicine

Admission Physiology Appeared More Informative Than Small-for-Gestational-Age Status for Predicting Severe In-Hospital Disposition in Preterm Infants Born at 28-36 Weeks: A Retrospective Single-Center NICU Cohort Study.

Ghorooneh Z, Mohammadzadeh A, Farhat AS et al. · 2026 · BMC pediatrics

BACKGROUND: Whether small for gestational age adds prognostic information after NICU admission physiology is known remains uncertain in preterm infants. This distinction is clinically important because SGA is an anthropometric birth-size…

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Negative / Null Result ReportMedicine

Substantial Operative and Nonoperative Mortality Persists in Neonatal Ebstein Anomaly: A 20-Year Multi-Institutional Analysis.

Turner D, Mehdizadeh-Shrifi A, Faateh M et al. · 2026 · World journal for pediatric & congenital heart surgery

BackgroundWe sought to characterize the epidemiology, treatment patterns, and outcomes of neonatal Ebstein anomaly using a national database.MethodsIn this descriptive analysis, the pediatric health information system (PHIS) database was…

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Negative / Null Result ReportMedicine

Magnetic Resonance Imaging-Based Psoas Muscle Volume as an Additional Risk Factor for Fontan Failure: A Prospective Cohort Study.

Erdem S, Hussain T, Erdem O et al. · 2026 · Journal of the American Heart Association

Background Sarcopenia is prevalent in patients with Fontan circulation and may contribute to functional decline and adverse outcomes. It is commonly assessed using the cross-sectional area of the psoas muscle (PMA), although volumetric…

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Negative / Null Result ReportMedicine

Intrathecal antibody synthesis - Reiber method revisited.

Halperin JJ, Granger D · 2026 · BMC neurology

Background CSF immunoglobulin (IgG) often informs diagnosis in CNS inflammatory disease- qualitatively (oligoclonal bands; OCBs), or quantitatively (CSF: serum IgG: albumin, e.g. IgG index). Most US laboratories estimate excess CSF IgG…

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Negative / Null Result ReportOpen accessMedicine

Risk Stratification of Adverse Outcomes After Heart Transplantation with the 2022 Definition of Pulmonary Hypertension.

Corianò M, Pradegan N, Putortì F et al. · 2026 · Journal of cardiovascular development and disease

Pulmonary hypertension (PH) is associated with adverse outcomes after heart transplantation (HT). In 2022, the European Society of Cardiology introduced lower thresholds for pulmonary vascular resistance (PVR) to distinguish isolated…

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Negative / Null Result ReportMedicine

Quality assessment of radiographs through AI-driven feedback: A randomized comparative study on radiographer response in lateral knee radiographs.

Lysdahlgaard S, Jensen J, Pedersen MRV et al. · 2026 · Radiography (London, England : 1995)

Introduction High-quality radiographic positioning is essential for accurate diagnosis in knee imaging. Although artificial intelligence (AI) can assess image quality with high accuracy, its influence on radiographers' clinical…

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Negative / Null Result ReportMedicine

Retrospective Comparative Analysis of Diffusion Tensor and Constrained Spherical Deconvolution Tractography Models in a Clinical Neurosurgical Navigation Platform.

Watanabe A, Furukawa M, Hiruta R et al. · 2026 · Neurologia medico-chirurgica

Tractography is a technique for visualizing the trajectories of white matter pathways. The most widely used model, the diffusion tensor imaging, assumes a single fiber orientation within each voxel. In contrast, the constrained spherical…

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Negative / Null Result ReportMedicine

Enzalutamide Plus Metformin Versus Enzalutamide Alone in Metastatic Castration-resistant Prostate Cancer: A Randomized Phase 2 Trial (SAKK 08/14).

Gillessen S, Gobat K, Cathomas R et al. · 2026 · European urology oncology

Background and objective The aim of our study is to determine whether the addition of metformin to enzalutamide can improve the outcomes of men with metastatic castration-resistant prostate cancer (mCRPC). Methods From 2016 to 2021,…

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Negative / Null Result ReportMedicine

Modulation of neuroendocrine and autonomic responses to competitive stress by slow cortical potentials training in golfers: An exploratory randomized controlled trial.

Lizama E, Carcamo-Herrera B, López G et al. · 2026 · Psychoneuroendocrinology

Performance in precision sports such as golf depends on the athlete's ability to regulate psychophysiological responses under competitive pressure. Heart rate variability (HRV), cortisol, and DHEA provide complementary indices of autonomic…

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