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Schachl J, Stoiber M, Socha M, Zimpfer D, Wiedemann D, Schima H, Schlöglhofer T. Mechanical Characterization of Anchoring Devices for the Prevention of Driveline Infection in Left Ventricular Assist Device Patients. ASAIO J 2024; 70:249-256. [PMID: 38081043 DOI: 10.1097/mat.0000000000002111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Driveline infection (DLI) is associated with increased mortality and morbidity in left ventricular assist device (LVAD) patients. Because trauma to the driveline exit-site (DLES) is a risk factor for DLI, adhesive anchoring devices are used to immobilize the DL. In this study, commonly used products (identified through literature review and contact with nine international VAD implantation centers) were mechanically characterized to evaluate their effectiveness in preventing DLES trauma. Eight devices were tested in an in vitro abdominal model of the DLES, where a tensile force (10 N) was applied to a HeartMate 3 DL, whereas the resulting force ( FTotal ) on the DLES was recorded using a three-axis load cell. Four devices (CathGrip: FTotal = 2.1 ± 0.4 N, Secutape: FTotal = 2.6 ± 0.3 N, Hollister: FTotal = 2.7 ± 0.5 N, Tubimed: FTotal = 2.9 ± 0.2 N) were significantly ( p < 0.05) better at preventing tensile forces at the DLES compared to the other four devices (Main-Lock: FTotal = 3.7 [0.7] N, Secutape sensitive: FTotal = 3.9 ± 0.4 N, Foley Anchor: FTotal = 4.3 ± 0.5 N, Grip-Lok: FTotal = 5.4 ± 0.8 N). Immobilization of the DL with each anchoring device resulted in lower tensile force on the DLES than without an anchor ( FTotal = 8.2 ± 0.3 N). In conclusion, the appropriate selection of anchoring devices plays a critical role in reducing the risk of DLI, whereas the CathGrip, Secutape, Hollister, or Tubimed were superior in preventing trauma to the DLES in this study.
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Affiliation(s)
- Johanna Schachl
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Martin Stoiber
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Martina Socha
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Daniel Zimpfer
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Dominik Wiedemann
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Heinrich Schima
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Thomas Schlöglhofer
- From the Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
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Balestra N, Fredericks S, Silva AVCD, Rodrigues RCM, Nunes DP, Pedrosa RBDS. Driveline dressings used in heartmate patients and local complications: A retrospective cohort. Heart Lung 2023; 62:271-277. [PMID: 37633011 DOI: 10.1016/j.hrtlng.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND Patients with long-term ventricular assist devices (VAD) are predisposed to infection, bleeding, and pressure injuries at the insertion of the driveline. There is no consensus on a driveline dressing protocol. Chlorhexidine is often used to clean the driveline exit site and has been associated with lower rates of infection. For driveline coverage, bacteriostatic agents and transparent film have shown good results, but are costly. The same issue was associated with anchorage devices. OBJECTIVES The purpose of this study was to evaluate the types of dressings used in the driveline of patients using HeartMate (HM) and to describe the incidence density of local complications (infection, bleeding, and pressure injury) within 30 days postoperatively. METHODS A retrospective cohort study was conducted and included 22 patients admitted to the Intensive Care Unit after implantation of HM II and III in a Brazilian private hospital. RESULTS Several types of dressings were used in the drivelines. There were 22 different types of dressings. Dressing type 6 (Chlorhexidine, Excilon, Gauze and IV3000) were the most used (45.4%). Subjects using the Flexi-Trak anchoring device had a higher rate of local bleeding (50.0%) and those who used the Hollister device had more infection (61.1%) and pressure injury associated with a medical device (11.1%), compared to others. Infection was the primary complication (45.4%), followed by local bleeding (27.7%). CONCLUSION Despite the high variability of products used in the driveline of patients using HeartMate, the dressing made with chlorhexidine, silver-impregnated absorbent foam and transparent film, and the use of anchoring devices was the most frequently used. Infection was the most common complication.
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Affiliation(s)
- Natalia Balestra
- Sírio-Libanês Hospital, 115 Dona Adma Jafet St, São Paulo, 01308-050, Brazil; Faculty of Nursing, University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo St, Campinas, 13083-887, Brazil
| | - Suzanne Fredericks
- Daphne Cockwell School of Nursing, Toronto Metropolitan University, 350 Victoria St, Toronto, M5B 2K3, Canada
| | | | | | - Daniella Pires Nunes
- Faculty of Nursing, University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo St, Campinas, 13083-887, Brazil
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Kourouklis AP, Kaemmel J, Wu X, Baños M, Chanfon A, de Brot S, Ferrari A, Cesarovic N, Falk V, Mazza E. Transdermal wires for improved integration in vivo. BIOMATERIALS ADVANCES 2023; 153:213568. [PMID: 37591177 DOI: 10.1016/j.bioadv.2023.213568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/13/2023] [Accepted: 07/23/2023] [Indexed: 08/19/2023]
Abstract
Alternative engineering approaches have led the design of implants with controlled physical features to minimize adverse effects in biological tissues. Similar efforts have focused on optimizing the design features of percutaneous VAD drivelines with the aim to prevent infection, omitting however a thorough look on the implant-skin interactions that govern local tissue reactions. Here, we utilized an integrated approach for the biophysical modification of transdermal implants and their evaluation by chronic sheep implantation in comparison to the standard of care VAD drivelines. We developed a novel method for the transfer of breath topographical features on thin wires with modular size. We examined the impact of implant's diameter, surface topography, and chemistry on macroscopic, histological, and physical markers of inflammation, fibrosis, and mechanical adhesion. All implants demonstrated infection-free performance. The fibrotic response was enhanced by the increasing diameter of implants but not influenced by their surface properties. The implants of small diameter promoted mild inflammatory responses with improved mechanical adhesion and restricted epidermal downgrowth, in both silicone and polyurethane coated transdermal wires. On the contrary, the VAD drivelines with larger diameter triggered severe inflammatory reactions with frequent epidermal downgrowth. We validated these effects by quantifying the infiltration of macrophages and the level of vascularization in the fibrotic zone, highlighting the critical role of size reduction for the benign integration of transdermal implants with skin. This insight on how the biophysical properties of implants impact local tissue reactions could enable new solutions on the transdermal transmission of power, signal, and mass in a broad range of medical devices.
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Affiliation(s)
- Andreas P Kourouklis
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Julius Kaemmel
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany
| | - Xi Wu
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Miguel Baños
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Astrid Chanfon
- COMPATH, Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Simone de Brot
- COMPATH, Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Aldo Ferrari
- EMPA, Swiss Federal Laboratories for Material Science and Technology, 8600 Dübendorf, Switzerland
| | - Nikola Cesarovic
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany; Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany; Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Edoardo Mazza
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland; EMPA, Swiss Federal Laboratories for Material Science and Technology, 8600 Dübendorf, Switzerland.
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Hanke JS, Merzah AS, Arfai J, Haverich A, Schmitto JD, Dogan G. Der Patient am linksventrikulären Assist Device. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2023. [DOI: 10.1007/s00398-023-00571-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Dix LML, de Goeij I, Manintveld OC, Severin JA, Verkaik NJ. Pseudomonas aeruginosa left ventricular assist device (LVAD) driveline infection acquired from the bathroom at home. Am J Infect Control 2022; 50:1392-1394. [PMID: 35569615 DOI: 10.1016/j.ajic.2022.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 01/25/2023]
Abstract
We describe a patient with a left ventricular assist device (LVAD) infection by Pseudomonas aeruginosa acquired at home. The Pseudomonas from the driveline was similar to several surface cultures of the patient's home shower. This case illustrates the potential and importance of infection prevention measures at home.
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Affiliation(s)
- Laura M L Dix
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
| | - Inge de Goeij
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Olivier C Manintveld
- Department of Cardiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands; Erasmus MC Transplant Institute, Rotterdam, The Netherlands
| | - Juliëtte A Severin
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Nelianne J Verkaik
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
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