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Root fixation for medial meniscal transplantation can be performed with or without bone plugs. Bone plug fixation has generally been shown to have superior time-zero biomechanical characteristics. Little is known about the biomechanics of peripheral stabilization for meniscal allograft transplantation (MAT) and its ability to improve time-zero biomechanics. The purpose was to compare the biomechanical effectiveness of modern soft tissue (ST) root fixation versus bone plug (BP) root fixation as well as peripheral stabilization in MAT. The hypothesis was that, while BP root fixation likely has better time-zero biomechanical characteristics with regard to contact forces and laxity, the addition of peripheral stabilization would mitigate these differences for either type of root fixation in a cadaveric model. Controlled laboratory study. A total of 8 matched-pair cadaveric knees with a mean age of 55 ± 10 years (5 female and 3 male) were used. The knees were tested in the following states: intact, meniscectomy, MAT (with either BP or ST root fixation) with peripheral stabilization, and MAT (with either BP or ST root fixation) without peripheral stabilization. Medial tibiofemoral joint contact area and pressure as well as knee laxity for anterior-posterior tibial translation, external-internal rotation, and varus-valgus were quantified at 0°, 30°, 60°, and 90° of knee flexion. A paired t test with a significance level at .05 was used for statistical analysis. There were small but significant differences between ST and BP MAT with or without peripheral stabilization in contact forces and most laxity measurements. While both groups demonstrated improved stability with peripheral stabilization, the BP MAT group exhibited greater influence from stabilization in laxity with internal-external rotation (P = .010), contact area with internal-external rotation (P = .022), and contact area with varus (P < .005). This study demonstrated the slight superiority of BP versus ST root fixation and that the addition of peripheral stabilization for ST and BP MAT decreased medial tibiofemoral joint contact pressure and increased medial tibiofemoral joint contact area at time zero. While the time-zero biomechanical characteristics of BP MAT were more influenced by peripheral stabilization than the ST technique, this is most likely because of graft size mismatch. With current root fixation devices, both ST and BP MAT had generally similar biomechanical characteristics at time zero, and peripheral stabilization seemed to improve both modes of fixation.

Despite the widespread use of ursodeoxycholic acid (UDCA) in primary biliary cholangitis (PBC), many patients remain at risk of progression. Emerging data suggest that normalization of alkaline phosphatase (ALP) and total bilirubin (TB)-particularly when TB < 0.6 times the upper limit of normal (× ULN)-is associated with improved outcomes compared with ALP reduction to < 1.5 × ULN. This study investigated the association between ALP normalization in response to UDCA and long-term clinical outcomes in a real-world cohort of patients with PBC. We compared complication-free survival in patients achieving an ALP > ULN and < 1.5 × ULN (adequate response) with those with an ALP ≤ ULN on UDCA monotherapy. Complication-free survival was defined as the absence of serious liver-related clinical events. Restricted mean survival time was used to quantify survival time gained. Patients achieving normal ALP and/or TB ≤ 0.6 × ULN demonstrated significantly improved complication-free survival compared with those with an adequate ALP response. Event-free survival was extended by 1.34 years (95% CI: 0.56, 2.11; P = 0.001) for ALP normalization alone, 3.7 years (95% CI: 3.11, 4.29; P < 0.001) for TB ≤ 0.6 × ULN, and 4.51 years (95% CI: 4.13, 4.88; P < 0.001) for those meeting both criteria. The risk of severe clinical events was reduced in patients achieving ALP normalization (hazard ratio [HR] 0.34; 95% CI: 0.15, 0.80; P = 0.01), TB ≤ 0.6 × ULN (HR 0.23; 95% CI: 0.09, 0.55; P = 0.001), or both (HR 0.14; 95% CI: 0.05, 0.38; P < 0.001). High-risk patients, defined by liver stiffness measurement ≥ 10 kPa or clinical, histological, or laboratory evidence of cirrhosis or portal hypertension, derived the greatest benefit. Achieving normal ALP and TB ≤ 0.6 × ULN is associated with significantly improved complication-free survival, particularly in high-risk patients. These findings highlight the potential of biochemical thresholds as a meaningful therapeutic goal in PBC management.

Introduction: Spontaneous intracerebral hemorrhage (ICH) accounts for about 10% of strokes in the United States and is linked to high morbidity and mortality. Hematoma expansion independently predicts poor outcomes. Thromboelastography with platelet mapping (TEG-PM) has shown predictive value for hematoma expansion in traumatic ICH, but its role in spontaneous ICH is unclear. This research seeks to fill the gap in current literature by investigating the relationship between TEG-PM findings and hematoma expansion, potentially leading to more targeted interventions. Methods: This retrospective cohort study assessed the predictive value of TEG-PM, focusing on arachidonic acid (AA) and adenosine diphosphate (ADP) inhibition, for hematoma expansion in spontaneous ICH patients. Patients with spontaneous ICH who received TEG-PM and an initial CT scan within 6 hours of symptom onset between January 2018 and April 2024 were included. Patients taking anticoagulants or antiplatelet agents, those with traumatic ICH, vascular malformations, brain tumors, or coagulopathies were excluded. The primary outcome was the predictive value of TEG-PM findings on hematoma expansion. Secondary objectives included in-hospital mortality rate, incidence of hematoma expansion, and incidence of hemostatic medication administration. Results: A total of 117 patients with spontaneous ICH met inclusion criteria and were included in the final analysis. The median age was 62 years (IQR, 54–72), and 72 patients (61.5%) were male. Hematoma expansion occurred in 19 patients (16.2%). Platelet function parameters measured by TEG-PM, specifically AA% inhibition (6.0% vs. 9.9%, p = 0.37) and ADP% inhibition (16.1% vs. 21.0%, p = 0.77), did not differ significantly between those with and without expansion. Use of hemostatic agents like desmopressin (12.0%) and tranexamic acid (18.8%) was similar. In-hospital mortality occurred in 17.1%, with no significant difference by expansion status (21.1% vs. 16.3%; p = 0.62). Conclusions: TEG-PM parameters did not predict hematoma expansion in this cohort. The low expansion rate may have limited the predictive value of TEG-PM. These results suggest limited utility of TEG-PM to guide management in spontaneous ICH patients without overt platelet dysfunction or anticoagulation.

You may have heard that humans spend about one third of their lives asleep. While sleep might seem like a passive activity, it is an active one that helps you focus and remember things in school, feel more emotionally balanced, and stay physically healthy. Experts recommend 8–10 h of sleep per night for teenagers and, at your age, that is hard to do. This article explains why sleep matters and how it impacts your physical and mental health. To help, we offer sleep tips like sticking to a sleep schedule and cutting down on screen time before bed. Prioritizing sleep will help you feel better, think sharper, and deal more effectively with social and emotional challenges.

Cardiac device therapy has significantly evolved since the introduction of the first implantable pacemaker and the subsequent development of the implantable cardioverter-defibrillator (ICD). ICDs are highly effective; however, their main weakness lies in lead-related complications. To avoid the need for venous access and the complications associated with transvenous leads, a fully subcutaneous ICD (S-ICD) system was developed. Despite these advancements, the S-ICD system is limited by its inability to provide bradycardia pacing and antitachycardia pacing. This limitation prompted the development of a modular cardiac rhythm management system, integrating a new leadless pacemaker with an S-ICD that uses unidirectional communication to command the pacemaker to deliver antitachycardia pacing.Conduction system pacing, including His bundle pacing and left bundle branch area pacing (LBBAP), has emerged as a physiological alternative to biventricular resynchronisation therapy and conventional pacing, pending results of large clinical trials. LBBAP offers superior electrical parameters and long-term performance compared with His bundle pacing. The capability to provide defibrillation via the same lead used for LBBAP represents an unresolved challenge that is currently under ongoing research.This state-of-the-art review presents the latest developments and innovations in cardiac device therapy, offering a comprehensive overview of current technologies that increasingly enable therapy to be tailored to individual patient needs.

BackgroundInfections with Carbapenem-resistant Enterobacterales (CREs) are a serious public health threat. The emergence of distinct New Delhi metallo-beta-lactamase (NDM)-producing K. pneumoniae strains resistant to cefiderocol is a significant concern given the limited armamentarium for these carbapenemases.Table 1:Baseline CharacteristicsCNS = central nervous system, LTCF = long-term care facilities, MIC = minimum inhibitory concentration, NDM = New Delhi metallo-beta-lactamase, OSH = outside hospital, SSTI = skin and soft tissue infection, UTI = urinary tract infectionTable 2:Outcomes1Patient was switched from tigecycline to ceftazidime/avibactam + aztreonam due to breakthrough bacteremia with the same NDM K. pneumoniae2Patient was switched from ceftazidime/avibactam + aztreonam to meropenem/vaborbactam + aztreonam due to polymicrobial infection with an E. coli that was resistant to ceftazidime/avibactam but susceptible to meropenem/vaborbactam3Recurrence was treated with ceftazidime/avibactam + aztreonam for 7 daysMethodsA case series of 12 patients was described from a single institution that had cefiderocol-resistant, NDM-producing K. pneumoniae infections between January 2023 and July 2024. Whole genome sequencing was performed to analyze resistance mechanisms, as well as mutations in siderophore transporters and porins.Whole Genome Sequencing ResultsResultsPatients presented with various infections, including skin and soft tissue infections, pneumonia, and bacteremia. Of concern, cefiderocol resistance was seen among patients with and without prior cefiderocol exposure. Genomic analysis for 9 patients revealed NDM-5 in every isolate, along with additional mutations associated with resistance. Treatment with ceftazidime-avibactam plus aztreonam was successful in most instances, although microbiologic recurrence occurred in certain cases.ConclusionHigh level cefiderocol-resistance among NDM-5 producing K. pneumoniae with siderophore mutations add more challenges to treating CRE infections. Stricter infection control measures along with enhanced surveillance are needed, especially in regions where NDM is endemic to limit additional spread of these variants.DisclosuresEmir Kobic, BCIDP, Shionogi: Honoraria