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Browse the failure-mode index

11,421 real negative results, null findings, and replication failures in Medicine · Negative / Null Result Report. 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 ReportOpen accessMedicine

Clinical and Radiographic Factors Affecting the Outcomes of Decompression Surgery in Clinical and Radiographic Degenerative Spondylolisthesis (CARDS) Classification Type C Degenerative Lumbar Spondylolisthesis.

Kawano A, Tarukado K, Yokota K et al. · 2026 · Cureus

Introduction The optimal surgical strategy for Clinical and Radiographic Degenerative Spondylolisthesis (CARDS) Type C remains controversial, particularly regarding decompression alone versus fusion surgery. Evidence focusing on outcomes…

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Negative / Null Result ReportMedicine

Does the ACR/EULAR Total Improvement Score reflect how individuals with autoimmune inflammatory myopathies feel and function?

Leclair V, Berger C, Bouchard-Marmen M et al. · 2026 · The Journal of rheumatology

Objective Little is known as to whether the American College of Rheumatology/European Alliance of Associations for Rheumatology Total Improvement Score (TIS) reflects how patients in the autoimmune inflammatory myopathies (AIM) spectrum…

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Negative / Null Result ReportMedicine

Intraocular foreign bodies in the posterior segment: Clinical characteristics, management, and visual outcomes.

Phogat J, Prabha C, Nada M et al. · 2026 · Chinese journal of traumatology = Zhonghua chuang shang za zhi

Purpose To analyze the clinical characteristics, management, and visual outcomes of patients with retained posterior segment intraocular foreign bodies (IOFBs). Methods This was a retrospective, non-comparative, single-institutional case…

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Negative / Null Result ReportMedicine

Use of Expected Utility to Evaluate Artificial Intelligence-Enabled Rule-out Devices for Mammography Screening.

Fan KL, Thompson YLE, Chen W et al. · 2026 · Medical decision making : an international journal of the Society for Medical Decision Making

BackgroundAn artificial intelligence (AI)-enabled rule-out device may autonomously remove patient images unlikely to have cancer from radiologist review. Many published studies evaluate this type of device by retrospectively applying the…

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Negative / Null Result ReportMedicine

Evaluation of text- and image-based generative artificial intelligence for simulating impacted third molar extraction.

Hamada M, Nishiyama K, Ichiyama S et al. · 2026 · Journal of stomatology, oral and maxillofacial surgery

Background Recent advances in generative artificial intelligence (AI) have opened new opportunities in procedural simulation. However, its clinical accuracy for simulating impacted mandibular third molar extraction remains unclear.…

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Negative / Null Result ReportMedicine

A critical analysis of the Carotid Revascularization and Medical Management for Asymptomatic Carotid Stenosis Trial (CREST-2) and the European Carotid Surgery Trial (ECST)-2.

Paraskevas KI, Zeebregts CJ, Blecha M et al. · 2026 · Seminars in vascular surgery

The Carotid Revascularization and Medical Management for Asymptomatic Carotid Stenosis Trial (CREST-2) concluded that addition of transfemoral carotid artery stenting to intensive medical therapy (IMT) among patients with high-grade…

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Negative / Null Result ReportOpen accessMedicine

Clinical impact of the angiosome concept: is it applicable in femoropopliteal bypasses, limb salvage, and wound healing in critical pathologic limb-threatening ischemia?

Mazurova T, Sengul I, Sengul D et al. · 2026 · Revista da Associacao Medica Brasileira (1992)

Introduction The global burden of peripheral artery disease is increasing worldwide. A subset of 5% of these patients ultimately reach the final stage with trophic defects, a condition clinically defined as critical limb-threatening…

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Negative / Null Result ReportMedicine

Round Window Drill-Out in Advanced Otosclerosis.

Aragon KE, Vrabec JT · 2026 · Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

Objective To discuss the effect of round window drill-out for otosclerosis cases with radiographic evidence of round window obliteration. Patients Four adult patients (5 ears) were included with audiometric findings of a mixed hearing loss…

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Negative / Null Result ReportMedicine

Right vagus nerve stimulation promotes motor cortical plasticity.

Welch HF, Rajendran M, Thorn CA · 2026 · Scientific reports

Stimulation of the left cervical vagus nerve (l-VNS) paired with motor training is FDA-approved to improve upper limb function after stroke. However, recent preclinical studies have revealed a striking asymmetry in engagement of the…

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Negative / Null Result ReportMedicine

Platelet-Rich Plasma and Bone Marrow Stimulation in Double-Row Rotator Cuff Repair Does Not Improve Clinical Outcomes but Reduces Retear Rates: A Retrospective Analysis With Propensity Score Matching.

Chang HH, Chun YM, Kim SJ et al. · 2026 · Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association

Purpose To compare clinical and radiologic outcomes among patients undergoing double-row suture bridge (DRSB) repair alone, DRSB with platelet-rich plasma (PRP) augmentation, and DRSB with bone marrow stimulation (BMS) augmentation.…

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Negative / Null Result ReportMedicine

The Influence of Os Acromiale on Patient Outcomes After Reverse Total Shoulder Arthroplasty: A Matched Cohort Study.

Schneider BS, Pfaehler CD, Hao KA et al. · 2026 · The Journal of the American Academy of Orthopaedic Surgeons

Background Although os acromiale is often noted on preoperative imaging in patients undergoing reverse total shoulder arthroplasty (rTSA), its clinical significance is ill-defined. The purpose of this study was to compare the clinical…

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Negative / Null Result ReportMedicine

Effectiveness and Safety of Ozone Therapy in Humans: An Umbrella Review of Systematic Reviews with Meta-Analyses of Randomized Clinical Trials.

Cacciatore S, Abbatecola G, Calvani R et al. · 2026 · Medical sciences (Basel, Switzerland)

Background/objectives Ozone therapy has been proposed across multiple clinical conditions based on hormetic, antioxidant, and immunomodulatory effects, but its efficacy and safety remain controversial. We conducted an umbrella review to…

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Negative / Null Result ReportMedicine

Ketogenic diet as a therapeutic intervention for biochemical hyperandrogenism in PCOS women with obesity or overweight: a meta-analytic study.

Maseroli E, Alfaroli C, Cirillo M et al. · 2026 · Journal of endocrinological investigation

Purpose To assess whether the Ketogenic Diet (KD) is associated with improvements in biochemical markers of hyperandrogenism in women diagnosed with Polycystic Ovary Syndrome (PCOS) with obesity or overweight. Methods A systematic search…

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Negative / Null Result ReportMedicine

Use of rebamipide solution as a submucosal injection material to prevent esophageal stricture after endoscopic submucosal dissection: Animal study.

Hirai Y, Fujimoto A, Sasaki M et al. · 2026 · Endoscopy international open

Background and study aims It is desirable to develop a safe, cost-effective, and easy approach to prevent strictures after esophageal endoscopic submucosal dissection (ESD). We explored use of a novel rebamipide solution, an anti-ulcer…

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Negative / Null Result ReportMedicine

Addition of High-Dose Cytarabine to Fludarabine, Busulfan, and Melphalan Conditioning for Cord Blood Transplantation in Adult Acute Myeloid Leukemia.

Yamaguchi K, Watanabe O, Mitsuki T et al. · 2026 · Transplantation and cellular therapy

The clinical benefit of adding high-dose cytarabine (HDCA) to fludarabine (FLU), busulfan (BU), and melphalan (MEL)-based conditioning for cord blood transplantation (CBT) in acute myeloid leukemia (AML) remains unclear. We aimed to…

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Negative / Null Result ReportMedicine

Sarcopenia modifies the survival benefit of triple therapy versus TACE alone in elderly patients with unresectable hepatocellular carcinoma: A multicenter retrospective cohort study.

Ye L, Yue W, Lin K et al. · 2026 · Scientific reports

Triple therapy combining transarterial chemoembolisation (TACE), tyrosine kinase inhibitors (TKIs), and immune checkpoint inhibitors (ICIs) has shown efficacy in unresectable hepatocellular carcinoma (HCC), but evidence in elderly patients…

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Negative / Null Result ReportMedicine

Effectiveness and safety of REVIVENT-TC system for the left ventricular reconstruction in ischaemic heart failure. A literature review.

Kakoudaki T, Poon SS, Kumar P · 2026 · Cardiovascular revascularization medicine : including molecular interventions

Background Surgical ventricular reconstruction (SVR) is not always feasible in patients with ischaemic cardiomyopathy and left ventricular (LV) aneurysm, due to high surgical risk. The Revivent-TC Transcatheter Ventricular Enhancement…

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Negative / Null Result ReportOpen accessMedicine

Is there a role for adjuvant radiotherapy after partial laryngectomy? A propensity score matched analysis.

Belgioia L, D'Onofrio I, Filauro M et al. · 2026 · Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale

Objective To evaluate the impact of postoperative radiotherapy (PORT) on survival outcomes in patients with laryngeal cancer treated with partial laryngectomy. Methods In this retrospective multicentre study, 312 patients with supraglottic…

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