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Aims And Objectives: To explore whether dual-lumen power injectable peripherally inserted central catheters (PICCs) could be effectively and safely applied in allogeneic hematopoietic stem cell transplantation (allo-HSCT) and for serum cyclosporine level monitoring.
Background: Compared to conventional central venous access devices, PICC provides a feasible route not only for fluid infusion, but also for blood sample collection in patients undergoing oncological treatments.
Design: A prospective observational study was conducted according to the STROBE guidelines.
Methods: We prospectively evaluated the applications and complications of power injectable PICCs in 52 consecutive allo-HSCT recipients. We also compared the cyclosporine levels in 188 paired blood samples, simultaneously obtained via power injectable PICCs and percutaneous venous puncture, to investigate whether power injectable PICC is a feasible route for cyclosporine concentration monitoring in allo-HSCT.
Results: The median PICC placement duration was 29 days. The insertion-site blood oozing and central line-associated bloodstream infection rates were 36.5% (19/52) and 26.9% (14/52), respectively, indicating the feasibility of these PICCs for various applications in allo-HSCT. No power injectable PICC-related thrombotic adverse events were identified; 90.4% (47/52) of cases with power injectable PICC removal occurred because of lack of medical utility, suggesting that power injectable PICC-related complications were manageable. However, cyclosporine levels in samples obtained via these PICCs were significantly higher than those in samples obtained via percutaneous venous puncture (261.5 ± 139.2 vs. 232.4 ± 253.6 ng/ml; p = 0.019 [set 1]; 254.8 ± 89.3 vs. 225.1 ± 233.3 ng/ml; p<0.001 [set 2]; 283.6 ± 103.9 vs. 238.0 ± 254.7 ng/ml; p = 0.006 [set 3]; 291.0 ± 94.9 vs. 266.0 ± 274.7 ng/ml; p = 0.016 [set 4]).
Conclusion: The power injectable PICC is a feasible venous access device for allo-HSCT.
Relevance To Clinical Practice: The dual-lumen power injectable PICCs provided a reliable access for blood sample collection, decreasing the number of blind percutaneous venous punctures in allo-HSCT. However, its application in cyclosporine level monitoring needs further investigation.
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http://dx.doi.org/10.1111/jocn.16020 | DOI Listing |
Rapid Commun Mass Spectrom
September 2025
Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif sur Yvette, France.
Rationale: Electrospray (ESI), the most popular desorption/ionization technique used in mass spectrometry-based metabolomics, generates both protonated and deprotonated molecules, as well as adduct ions, sodium being the most frequent monoatomic cation entering their composition. With the spread and generalization of untargeted data-dependent and independent tandem mass spectrometry experiments, considering product ion spectra of sodium-containing entities appears relevant to complement fragmentation information of their protonated and deprotonated counterparts.
Methods: Solutions of pure standards, mainly amino and organic acids, were prepared at 1 μg/mL and injected either by direct infusion or by flow-injection prior to ESI-MS/MS analysis.
Nat Photonics
June 2025
University of Vienna, Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), Vienna, Austria.
Recently, machine learning has had remarkable impact in scientific to everyday-life applications. However, complex tasks often require the consumption of unfeasible amounts of energy and computational power. Quantum computation may lower such requirements, although it is unclear whether enhancements are reachable with current technologies.
View Article and Find Full Text PDFInt J Mass Spectrom
December 2025
Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907-2084, USA.
An electrostatic linear ion trap (ELIT) is used to trap ions between two ion mirrors with image current detection by central detection electrode. Transformation of the time-domain signal to the frequency-domain via Fourier transform (FT) yields an ion frequency spectrum that can be converted to a mass-to-charge scale. Injection of ions into an ELIT from an external ion source leads to a time-of-flight ion separation that ultimately determines the range of over which ions can be collected from a given ion injection step.
View Article and Find Full Text PDFAtomic layer deposition (ALD) enables an excellent surface coverage and uniformity in the preparation of large-area metal-oxide thin films. In particular, ALD-processed SnO has demonstrated great potential as an electron transport layer in flexible perovskite solar cells (PSCs) and tandem modules. However, the poor electrical conductivities and surface wettabilities of amorphous SnO remain critical challenges for commercialization.
View Article and Find Full Text PDFAppl Phys B
September 2025
Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
Unlabelled: In the framework of the Argon Power Cycle, millisecond-pulsed hydrogen gas injections into a high-pressure, room temperature nitrogen or argon ambient are investigated. Instantaneous Rayleigh scattering is used to quantify the hydrogen mole fraction in the ensuing jets. A readily available HDEV injector with a straight 0.
View Article and Find Full Text PDF