Publications by authors named "Velten M"

Article Synopsis
  • Higher rates of adult heart failure are linked to individuals born preterm or with poor fetal growth, often influenced by adverse maternal conditions and the need for oxygen therapy post-birth.
  • Research using a mouse model evaluated the impact of maternal inflammation and oxygen exposure on cardiac health, revealing sex differences in the progression of heart issues by 10 months.
  • Results showed that early changes in heart-related proteins can indicate potential heart problems in adulthood, especially more severe in males, suggesting these patterns might also apply to humans, particularly in infants with growth restrictions.
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The development and adoption of minimally invasive techniques has revolutionized various surgical disciplines and has also been introduced into cardiac surgery, offering patients less invasive options with reduced trauma and faster recovery time compared to traditional open-heart procedures with sternotomy. This article provides a comprehensive overview of the anesthesiologic management for minimally invasive cardiac surgery (MICS), focusing on preoperative assessment, intraoperative anesthesia techniques, and postoperative care protocols. Anesthesia induction and airway management strategies are tailored to each patient's needs, with meticulous attention to maintaining hemodynamic stability and ensuring adequate ventilation.

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Background: Severe aortic stenosis (sAS) is associated with acquired von Willebrand syndrome (AVWS) by loss of high-molecular-weight multimers (HMWM) of von Willebrand factor (VWF), potentially resulting in perioperative bleeding. Analysis of VWF multimers remains challenging. Recently, the new, rapid Hydragel 5 assay has been developed, using electrophoretic protein separation for dividing VWF-multimers into low (LMWM), intermediate (IMWM), and HMWM, the hemostatically active part of VWF.

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Aim: The cardiac surgery-related ischemia-reperfusion-related oxidative stress triggers the release of cytotoxic reactive oxygen and nitrogen species, contributing to organ failure and ultimately influencing patients' short- and long-term outcomes. Selenium is an essential co-factor for various antioxidant enzymes, thereby contributing to the patients' endogenous antioxidant and anti-inflammatory defense mechanisms. Given these selenium's pleiotropic functions, we investigated the effect of a high-dose selenium-based anti-inflammatory perioperative strategy on functional recovery after cardiac surgery.

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Background: Chemoradiotherapy with high-dose cisplatin (HD-Cis: 100 mg/m q3w for three cycles) is the standard of care (SOC) in locally advanced head and neck squamous cell carcinoma (LA-HNSCC). Cumulative delivered dose of cisplatin is prognostic of survival, even beyond 200 mg/m but high toxicity compromises its delivery.

Aim: Cisplatin fractionation may allow, by decreasing the peak serum concentration, to decrease toxicity.

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Access to blood products is crucial for patient safety during the perioperative course. However, reduced donations and seasonally occurring blood shortages pose a significant challenge to the healthcare system, with surgeries being postponed. The German Blood Transfusion act requires that RBC packages become assigned to an individual patient, resulting in a significant reduction in the available blood products, further aggravating shortages.

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Polyunsaturated fatty acids such as DHA have known anti-inflammatory properties. The therapeutic implication highlights the importance of accurate serum measurements. Sample preservation is challenging when performed parallel to the clinical obligations.

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Background: Recent data from the randomized SUSTAIN CSX trial could not confirm clinical benefits from perioperative selenium treatment in high-risk cardiac surgery patients. Underlying reasons may involve inadequate biosynthesis of glutathione peroxidase (GPx3), which is a key mediator of selenium's antioxidant effects. This secondary analysis aimed to identify patients with an increase in GPx3 activity following selenium treatment.

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Introduction: Since the development of the coronavirus disease (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), there has been significant interest in determining the effectiveness of SARS-CoV-2 vaccines in patients under immunomodulatory or immunosuppressive therapies. The aim of this study was to evaluate the impact of ocrelizumab, a monoclonal anti-CD20 antibody, on SARS-CoV-2-specific T cell and B cell responses in patients with relapsing-remitting multiple sclerosis (RRMS).

Methods: To this end, peripheral blood mononuclear cells (PBMCs) were isolated from = 23 patients with RRMS.

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Background: Near-infrared spectroscopy (NIRS) is a commonly used technique to evaluate tissue oxygenation and prevent harmful cerebral desaturation in the perioperative setting. The aims of the present study were to assess whether surgery-related anemia can be detected via NIRS of cerebral oxygen saturation and to investigate the effects of different perioperative transfusion strategies on cerebral oxygenation, potentially affecting transfusion decision-making.

Study Design And Methods: Data from the ongoing multicenter LIBERAL-Trial (liberal transfusion strategy to prevent mortality and anemia-associated ischemic events in elderly noncardiac surgical patients, LIBERAL) were used.

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Background: Minimally invasive heart valve surgery via anterolateral mini-thoracotomy with full endoscopic 3D visualization (MIS) has become the standard treatment of patients with valvular heart disease and low operative risk over the past two decades. It requires extracorporeal circulation and cardioplegic arrest. The most established form of arterial cannulation for MIS is through the femoral artery and is used by most surgeons, but it is suspected to increase the risk of stroke through retrograde blood flow.

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Unlabelled: Initial evidence indicates that preoperatively initiated administration of omega-3 fatty acids (FAs) attenuates the postoperative inflammatory reaction. The effects of immunonutrition containing omega-3 FAs, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), on the inflammatory response to abdominal surgery continues to be unclear, although improved outcomes have been reported. Therefore, we determined the effectiveness of preoperatively initiated omega-3 FAs administration on postoperative inflammation defined as CRP (C-Reactive Protein), IL-6 (Interleukin 6), and WBC (White Blood Count) and potential effects on postoperative length of hospital stay (LOS) due to an improved inflammatory response.

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(1) Background: Despite optimal surgical therapy, replacement of the ascending aorta leads to a significant reduction in the quality of life (QoL). However, an optimal result includes maintaining and improving the QoL. The aim of our study was to evaluate the long-term outcome and the QoL in patients with aneurysms in the ascending aorta; (2) Methods: Between 2014 and 2020, 121 consecutive patients who underwent replacement of the ascending aorta were included in this study.

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Background: Patient Blood Management (PBM) is a patient-centred, systematic, evidence-based approach to improve patient outcomes by managing and preserving a patient's own blood whilst promoting patient safety and empowerment. The effectiveness and safety of PBM over a longer period have not yet been investigated.

Methods: We performed a prospectively designed, multicentre follow-up study with non-inferiority design.

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Background:  Guidelines on myocardial revascularization define recommendations for percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) surgery. Only little information exists on long-term follow-up and quality of life (QoL) after CABG preceded by PCI. The aim of our study was to evaluate the impact of prior PCI on outcome and QoL in patients with stable coronary artery disease who underwent CABG.

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Article Synopsis
  • The study investigated the incidence rate of inflammatory myopathies (IM) using refined methods, estimating a rate of 8.22 cases per million annually in Alsace, France.
  • The research included data from multiple sources over a 6-year period and corrected for missed cases through capture-recapture analysis.
  • Findings showed no variations in incidence over time or space, with other systemic manifestations frequently observed in patients alongside muscle symptoms.
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Radial artery (RA) catheterization for invasive blood pressure monitoring is often performed via palpation, and an ultrasound is used secondarily only in case of multiple unsuccessful attempts. Although more elaborate, it has been shown that primary ultrasound-guided catheterization may be advantageous compared with palpation. The aim of this study was to identify factors associated with difficult RA catheterization.

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Unlabelled: Continuous infusion (CI) of beta-lactam-antibiotics may improve pharmacodynamics in critically ill patients, but resulting concentrations have not been studied. Therapeutic drug monitoring is increasingly used to ensure antibiotic concentration. The aim of this study is to evaluate therapeutic ampicillin/sulbactam concentrations of a continuous infusion regimen.

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Background: Acute coronary syndrome (ACS) is a major cause of morbidity and mortality in the western world. Classic angina pectoris (AP) is a common reason to request prehospital emergency medical services (EMS). Nevertheless, data on diagnostic accuracy and common misdiagnoses are scarce.

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Article Synopsis
  • The study analyzed trends in the incidence of vaginal cancer in France over 28 years and assessed survival rates for women diagnosed recently (2010-2015).
  • Data from French cancer registries showed a significant 3% annual decline in the age-standardized incidence rate of vaginal cancer from 1990 (0.4 cases per 100,000) to 2018 (0.2 cases per 100,000).
  • Although vaginal cancer remains rare, with a median diagnosis age of 75 and low 5-year net survival rates (45%), the decrease in incidence is not yet clearly linked to HPV vaccination, as the disease primarily affects older women.
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Near Infrared Spectroscopy (NIRS) has become widely accepted to evaluate regional cerebral oxygen saturation (rScO2), potentially acting as a surrogate parameter of reduced cerebral oxygen delivery or increased consumption. Low preoperative rScO2 is associated with increased postoperative complications after cardiac surgery. However, its universal potential in pre-anesthesia risk assessment remains unclear.

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Article Synopsis
  • Dysphonia, or trouble speaking clearly, is common in people with asthma and might be caused by inhaled medications, but researchers think it might actually be due to how the voice box works instead.
  • In a study, they looked at 68 women with asthma who used inhaled corticosteroids and compared them to 53 women without asthma. They found that a lot more asthma patients had voice problems (66.2%) compared to the control group (11.3%).
  • The researchers found that the voice problems in asthma patients weren't linked to throat infections or serious throat damage, but showed that asthma patients had more difficulty with how their voice box works when talking than the healthy women did.
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Objective: In cerebrovascular accidents symptoms, laboratory results and electrocardiogram (ECG) changes can mimic acute coronary syndrome (ACS) and is subsumed as neurogenic stunned myocardium. So far, data regarding the frequency of cerebrovascular accidents misdiagnosed for ACS in a prehospital setting are missing. This study aims to quantify misdiagnoses and discover discriminating features.

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