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Pediatric Regional Anesthesia: Comment. 儿科区域麻醉:评论。
IF 9.1 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-19 DOI: 10.1097/ALN.0000000000005885
Paolo Rufini, Silvia Cumbo, Zaccaria Ricci
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引用次数: 0
Effects of continuous low-dose nitric oxide in a murine model of pulmonary hypertension with impaired lung development. 持续低剂量一氧化氮对小鼠肺动脉高压伴肺发育受损模型的影响。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-16 DOI: 10.1097/aln.0000000000005939
Luca Zazzeron,Elisa Mereto,Paul Lichtenegger,Elizabeth Moore,Helena Tattersfield,Eizo Marutani,Binglan Yu,Lorenzo Berra,Donald B Bloch,Fumito Ichinose
RATIONALENewborns who live at high altitudes are chronically exposed to low oxygen levels, which may impair lung development and induce vascular remodeling, often resulting in pulmonary hypertension, right ventricular hypertrophy, and right heart failure. Nitric oxide (NO) has a critical role in mediating pulmonary vasodilation and supporting healthy lung development. The potential therapeutic role of long-term inhaled NO in hypoxia-induced pulmonary hypertension and right ventricular disease has not been determined.OBJECTIVETo investigate the therapeutic effects of long-term inhaled NO in a mouse model of pulmonary hypertension in the context of impaired lung development.METHODSBeginning on post-natal day 3-4, mice were exposed to either 21% or 11% FiO2, with or without continuous inhaled NO at 10 ppm. We assessed exhaled NO levels and plasma nitrite and nitrate concentrations on mice at age 2-3 months. Pulmonary hypertension, right ventricular hypertrophy and cardiac function were evaluated using echocardiography and invasive hemodynamic measurements. Vascular and alveolar structure was analyzed by histology.RESULTSChronic hypoxia impaired lung development and caused pulmonary hypertension. Levels of exhaled NO and plasma nitrite and nitrate concentrations were reduced by chronic hypoxia. Long-term inhaled NO therapy restored NO biomarkers and improved pulmonary hypertension, right ventricular hypertrophy, and right ventricular function. However, hypoxia-induced alveolar and vascular rarefaction were unaffected by inhaled NO.CONCLUSIONThese findings support further investigation of prolonged inhaled NO as a potential therapeutic strategy for conditions associated with chronic hypoxia, such as those experienced at high altitude.
生活在高海拔地区的新生儿长期暴露在低氧环境中,这可能会损害肺部发育并诱发血管重构,经常导致肺动脉高压、右心室肥厚和右心衰。一氧化氮(NO)在调节肺血管舒张和支持健康肺发育中起关键作用。长期吸入一氧化氮对缺氧引起的肺动脉高压和右室疾病的潜在治疗作用尚未确定。目的探讨长期吸入一氧化氮对肺发育受损小鼠肺动脉高压模型的治疗作用。方法从出生后第3-4天开始,小鼠暴露于21%或11%的FiO2中,连续吸入或不吸入10ppm的NO。我们评估了2-3月龄小鼠呼出一氧化氮水平和血浆亚硝酸盐和硝酸盐浓度。肺动脉高压、右心室肥厚和心功能的评价采用超声心动图和有创血流动力学测量。组织学分析血管和肺泡结构。结果慢性缺氧损害肺发育,引起肺动脉高压。慢性缺氧使呼出一氧化氮水平和血浆亚硝酸盐、硝酸盐浓度降低。长期吸入NO治疗可恢复NO生物标志物,改善肺动脉高压、右心室肥厚和右心室功能。然而,缺氧诱导的肺泡和血管稀疏不受吸入NO的影响。结论:这些发现支持进一步研究长时间吸入一氧化氮作为慢性缺氧相关疾病的潜在治疗策略,例如在高海拔地区。
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引用次数: 0
Individualized Flow-controlled versus Pressure-controlled Ventilation in Cardiac Surgery: A Randomized Controlled Trial. 心脏手术个体化流量控制与压力控制通气:一项随机对照试验。
IF 9.1 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-14 DOI: 10.1097/ALN.0000000000005851
Simon Becker, Christian T Kurz, Romina Schnitzler, Johannes Geppert, Lisa-Marie Wichelhaus, Robin Denz, Jonas Poepping, Martin Rembecki, Dinah Maria Berres, Justus T Strauch, Declan G Bates, Gabor Erdoes, Nina Timmesfeld, Peter K Zahn

Background: Patients undergoing on-pump cardiac surgery are at high risk for perioperative lung injury and a hyperinflammatory state associated with postoperative complications. The authors investigated the hypothesis that flow-controlled ventilation (FCV) reduces the inflammatory stimulus compared to conventional pressure-controlled ventilation (PCV) in this patient cohort. FCV has the unique feature of controlling airway flows during inspiration and expiration and the potential to reduce mechanical power of invasive ventilation.

Methods: In this single-center randomized controlled trial, 140 adult patients undergoing cardiac surgery with cardiopulmonary bypass were allocated 1:1 to FCV or PCV from August 10, 2020, to November 16, 2022. Participants received perioperatively either individualized FCV with a compliance-guided positive end-expiratory pressure (PEEP) and a compliance-guided driving pressure (ΔP) or PCV with a compliance-guided PEEP and ΔP for tidal volumes of 6 to 8 ml/kg predicted body weight. Postoperative plasmatic interleukin 8 (IL-8) levels 6 h after cardiopulmonary bypass were defined as the primary endpoint. Explorative secondary outcomes included incidences of postoperative pulmonary and extrapulmonary complications and hospital length of stay.

Results: Median postoperative IL-8 levels did not differ significantly between FCV and PCV (FCV, 3.08 vs . PCV, 3.60; β, 0.08 pg/ml; 95% CI, -0.17 to 0.33; P = 0.573). ΔP values and tidal volumes were higher in the FCV group but FCV yielded lower respiratory rates and minute volumes required for normocapnia. As a result, the FCV approach reduced the perioperatively applied mechanical power by 55%. After FCV, incidences of single postoperative pulmonary complications ( e.g. , confirmed pneumonia, moderate and severe hypoxemia) and any postoperative extrapulmonary complication were lower and the hospital stay shorter.

Conclusions: FCV did not reduce plasmatic IL-8 levels at the predefined timepoint 6 h after cardiopulmonary bypass. However, the reduction of mechanical power during individualized FCV application and the findings of the explorative secondary study outcomes justify future trials.

背景:接受无泵心脏手术的患者围手术期肺损伤和与术后并发症相关的高炎症状态的风险很高。在该患者队列中,我们研究了流量控制通气(FCV)与常规压力控制通气(PCV)相比减少炎症刺激的假设。FCV具有控制吸气和呼气时气道流量的独特功能,并具有降低有创通气机械功率的潜力。方法:在这项单中心随机对照试验中,从2020年8月10日至2022年11月16日,140例接受心脏手术合并体外循环的成年患者按1:1分配到FCV或PCV组。患者围手术期接受个体化呼气末正压(PEEP)和依从性驱动压力(ΔP)的FCV治疗,或接受依从性呼气末正压(PEEP)和ΔP的PCV治疗,潮气量为6-8 ml/kg预测体重。体外循环术后6小时血浆白细胞介素8 (IL-8)水平被定义为主要终点。探索性次要结局包括术后肺部和肺外并发症的发生率以及住院时间。结果:术后中位IL-8水平在FCV和PCV之间无显著差异(FCV 3.08 vs. PCV 3.60, β系数0.08 pg/ml, 95% CI -0.17 ~ 0.33; P = 0.573)。ΔP值和潮气量在FCV组较高,但FCV产生较低的呼吸速率和正常运动能力所需的分钟气量。结果,FCV入路将围手术期施加的机械功率降低了55%。FCV术后单一肺部并发症(如确诊肺炎、中重度低氧血症)及术后任何肺外并发症发生率较低,住院时间较短。结论:体外循环术后6小时内,FCV并没有降低血浆IL-8水平。然而,在个体化FCV应用过程中机械功率的降低和探索性二次研究结果的发现证明了未来的试验是合理的。
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引用次数: 0
Volumetric Capnography and the Interpretation of Regional Ventilation-to-Perfusion Matching. 容积造影和区域通气-灌注匹配的解释。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005857
Roberta Garberi,David W Kaczka
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引用次数: 0
Causality in Perioperative Acute Pain Research. 围手术期急性疼痛的因果关系研究。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005837
Daniel I McIsaac,Karim S Ladha
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引用次数: 0
Severe post-operative bleeding after heart transplantation. 心脏移植术后严重出血。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005930
Alexandre Mansour,Adrien Bougle,Marion Turpin,Adel Zaouini,Nicolas Patou Parvedy,Céline Chabanne,Geoffroy Hariri,Guillaume Coutance,Erwan Flecher,Pascal Leprince,Nicolas Nesseler
BACKGROUNDPost-operative bleeding is frequent in cardiac surgery, but its incidence, risk factors and consequences remain largely unknown after heart transplantation. The main objective of this study was to describe the incidence of severe bleeding complications after adult heart transplantation.METHODSWe conducted an observational study including all adult patients who received a heart transplant between 2015 and 2022, in two French referral centers. The primary endpoint was the incidence of severe bleeding complications defined by a UDPB score ≥ 3 (Universal Definition of Perioperative Bleeding). Multivariable logistic regression was used to identify variables associated with the incidence of severe post-operative bleeding. The impact of severe post-operative bleeding on one-year mortality was evaluated using a multivariable Cox regression model.RESULTSAmong the 446 patients included, 112 (25%) developed severe bleeding. In multivariable analysis, long-term mechanical cardiac support (adjOR 2.21 [1.01-4.88]), preoperative hemoglobin (adjOR 0.85 [0.76-0.95]) and the duration of CPB (per 10min increase, adjOR=1.08 [1.03-1.15]) were associated with severe bleeding. Severe postoperative bleeding was associated with an increased mortality at one-year (35% vs 13%, p<0.001), with an adjusted HR of 1.91 (95% CI, 1.18-3.09, p=0.008).CONCLUSIONSThis study reports a high incidence of severe hemorrhagic complications following heart transplantation, particularly in patients with mechanical circulatory support. Bleeding complications were associated with a significant increase in morbidity and mortality. Larger-scale studies are needed to identify and evaluated potential prevention strategies.
心脏手术后出血是常见的,但其发生率、危险因素和心脏移植后的后果在很大程度上仍然未知。本研究的主要目的是描述成人心脏移植术后严重出血并发症的发生率。方法:我们在法国两个转诊中心进行了一项观察性研究,包括2015年至2022年间接受心脏移植的所有成年患者。主要终点是UDPB评分≥3(围手术期出血的通用定义)定义的严重出血并发症的发生率。采用多变量logistic回归来确定与严重术后出血发生率相关的变量。采用多变量Cox回归模型评估术后严重出血对1年死亡率的影响。结果446例患者中,112例(25%)出现严重出血。在多变量分析中,长期机械心脏支持(adjOR 2.21[1.01-4.88])、术前血红蛋白(adjOR 0.85[0.76-0.95])和CPB持续时间(每增加10min, adjOR=1.08[1.03-1.15])与严重出血相关。严重的术后出血与一年内死亡率增加相关(35% vs 13%, p<0.001),调整后风险比为1.91 (95% CI, 1.18-3.09, p=0.008)。结论:本研究报告了心脏移植后严重出血并发症的高发生率,特别是在机械循环支持的患者中。出血并发症与发病率和死亡率的显著增加有关。需要更大规模的研究来确定和评估潜在的预防策略。
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引用次数: 0
Rising Treatment for Substance Use Disorder Presents New Challenges for Anesthesiologists as Perioperative Medicine Specialists. 药物使用障碍治疗的增加对麻醉师作为围手术期医学专家提出了新的挑战。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005850
Lynn R Kohan,Eugene R Viscusi
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引用次数: 0
Turning Down the Surge: Preemptive Magnesium during Pheochromocytoma and Paraganglioma Resection. 减少激增:在嗜铬细胞瘤和副神经节瘤切除术中先发制人的镁。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005860
Mariusz Ligocki,Nikolaos J Skubas
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引用次数: 0
Effects of γ-Aminobutyric Acid and Glutamate Signalings from Primary Sensory Neurons to Gate the Spinal Transmission of Mechanical Pain in Mice. γ-氨基丁酸和谷氨酸信号在小鼠机械性疼痛脊髓传递中的作用。
IF 8.8 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-13 DOI: 10.1097/aln.0000000000005854
Shu-Jin Wu,Hu-Hu Bai,Yan-Ni Liu,Qi Zhang,Yu-Bo Gao,Juan Li,Xu Yang,Jia-Ning Dang,Xiao-Xue Liu,Xue Bai,Xian Yang,Zhan-Wei Suo,Xiao-Dong Hu
BACKGROUNDThe majority of dorsal root ganglion neurons are excitatory glutamatergic neurons. Recent studies suggest that a subset of dorsal root ganglion neurons are able to synthesize γ-aminobutyric acid (GABA) and are immunoreactive to vesicular GABA transporter (Vgat) that packages GABA into the synaptic vesicles critical for inhibitory neurotransmission. The current study aimed to investigate the spinal circuits innervated by these Vgat+ primary sensory neurons and interrogate the role of Vgat+ primary sensory neurons in nociceptive modification.METHODSThe authors used viral tracings, immunohistochemistry, patch clamp electrophysiologic recordings, optogenetics, chemogenetics, and behavioral assays in male Vgat-Cre mice to dissect the anatomical connectivity and function of Vgat+ primary sensory neurons.RESULTSThe data showed that the central terminals of Vgat+ primary sensory neurons made inhibitory connections with spinal cord somatostatin-positive excitatory interneurons and meanwhile formed glutamatergic connections with local GABAergic interneurons driving feedforward inhibition. The functional dichotomy of Vgat+ primary sensory neurons constituted an inhibitory spinal circuit that prevented aversive and pain-like responses of mice to innocuous or noxious mechanical stimuli. After peripheral nerve injury, the reduction of inhibitory drive from Vgat+ primary sensory neurons to spinal somatostatin-positive interneurons correlated with mechanical nociceptive sensitization. Optogenetic or chemogenetic stimulation of Vgat+ primary sensory neurons effectively alleviated the nerve injury-induced hypersensitivity to mechanical stimulation.CONCLUSIONSThe data suggested that the Vgat+ primary sensory neurons innervating a discrete spinal microcircuit were ideally suited to suppress the mechanical pain transmission.
背景:背根神经节的大部分神经元为兴奋性谷氨酸能神经元。最近的研究表明,背根神经节神经元的一个子集能够合成γ-氨基丁酸(GABA),并对GABA囊泡转运蛋白(Vgat)产生免疫反应,该转运蛋白将GABA包装到突触囊泡中,对抑制神经传递至关重要。本研究旨在探讨由这些Vgat+初级感觉神经元支配的脊髓回路,并探讨Vgat+初级感觉神经元在伤害性改变中的作用。方法采用病毒示踪、免疫组织化学、膜片钳电生理记录、光遗传学、化学遗传学和行为学等方法对雄性Vgat- cre小鼠的Vgat+初级感觉神经元的解剖连接和功能进行解剖。结果Vgat+初级感觉神经元中枢末端与脊髓生长抑素阳性兴奋性中间神经元形成抑制性连接,同时与局部gaba能中间神经元形成谷氨酸能连接,驱动前馈抑制。Vgat+初级感觉神经元的功能二分法构成了抑制性脊髓回路,阻止小鼠对无害或有害的机械刺激产生厌恶和疼痛样反应。外周神经损伤后,Vgat+初级感觉神经元向脊髓生长抑素阳性中间神经元抑制驱动的减少与机械性伤害感受致敏相关。光生或化学生刺激Vgat+初级感觉神经元可有效减轻神经损伤引起的机械刺激超敏反应。结论Vgat+初级感觉神经元支配的离散脊髓微回路是抑制机械性疼痛传递的理想选择。
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引用次数: 0
The Stitch-Up: How Medical Misogyny Harms Us All. 缝合:医学厌女症如何伤害我们所有人。
IF 9.1 1区 医学 Q1 ANESTHESIOLOGY Pub Date : 2026-01-09 DOI: 10.1097/ALN.0000000000005858
Kathryn E McGoldrick
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引用次数: 0
期刊
Anesthesiology
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