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Bruna M, Alfaro S, Muñoz F, Cisternas L, Gonzalez C, Conlledo R, Ulloa-Morrison R, Huilcaman M, Retamal J, Castro R, Rola P, Wong A, Argaiz ER, Contreras R, Hernandez G, Kattan E. Dynamic changes of hepatic vein Doppler velocities predict preload responsiveness in mechanically ventilated critically ill patients. Intensive Care Med Exp 2024; 12:46. [PMID: 38717558 PMCID: PMC11078902 DOI: 10.1186/s40635-024-00631-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Assessment of dynamic parameters to guide fluid administration is one of the mainstays of current resuscitation strategies. Each test has its own limitations, but passive leg raising (PLR) has emerged as one of the most versatile preload responsiveness tests. However, it requires real-time cardiac output (CO) measurement either through advanced monitoring devices, which are not routinely available, or echocardiography, which is not always feasible. Analysis of the hepatic vein Doppler waveform change, a simpler ultrasound-based assessment, during a dynamic test such as PLR could be useful in predicting preload responsiveness. The objective of this study was to assess the diagnostic accuracy of hepatic vein Doppler S and D-wave velocities during PLR as a predictor of preload responsiveness. METHODS Prospective observational study conducted in two medical-surgical ICUs in Chile. Patients in circulatory failure and connected to controlled mechanical ventilation were included from August to December 2023. A baseline ultrasound assessment of cardiac function was performed. Then, simultaneously, ultrasound measurements of hepatic vein Doppler S and D waves and cardiac output by continuous pulse contour analysis device were performed during a PLR maneuver. RESULTS Thirty-seven patients were analyzed. 63% of the patients were preload responsive defined by a 10% increase in CO after passive leg raising. A 20% increase in the maximum S wave velocity after PLR showed the best diagnostic accuracy with a sensitivity of 69.6% (49.1-84.4) and specificity of 92.8 (68.5-99.6) to detect preload responsiveness, with an area under curve of receiving operator characteristic (AUC-ROC) of 0.82 ± 0.07 (p = 0.001 vs. AUC-ROC of 0.5). D-wave velocities showed worse diagnostic accuracy. CONCLUSIONS Hepatic vein Doppler assessment emerges as a novel complementary technique with adequate predictive capacity to identify preload responsiveness in patients in mechanical ventilation and circulatory failure. This technique could become valuable in scenarios of basic hemodynamic monitoring and when echocardiography is not feasible. Future studies should confirm these results.
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Affiliation(s)
- Mario Bruna
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | - Sebastian Alfaro
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
| | - Felipe Muñoz
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Liliana Cisternas
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | - Cecilia Gonzalez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Rodrigo Conlledo
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | | | - Marcos Huilcaman
- Unidad de Cuidados Intensivos, Hospital Gustavo Fricke, Viña del Mar, Chile
| | - Jaime Retamal
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Philippe Rola
- Intensive Care Unit, Hopital Santa Cabrini, CIUSSS EMTL, Montreal, Canada
| | - Adrian Wong
- Department of Critical Care, King's College Hospital, London, UK
| | - Eduardo R Argaiz
- Departamento de Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
| | - Roberto Contreras
- Unidad de Cuidados Intensivos, Hospital Biprovincial Quillota-Petorca, Quillota, Chile
| | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile.
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Wegner M, Dusse F, Beeser F, Leister N, Lefarth M, Finke SR, Böttiger BW, Dorweiler B, Stoll SE. Comparing Simulation Training of Bronchoscopy-Guided Percutaneous Dilatational Tracheostomy Using Conventional Versus 3D Printed Simulators (TRAC-Sim Study). J Intensive Care Med 2024:8850666241232918. [PMID: 38403970 DOI: 10.1177/08850666241232918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Background: Individual implementation rate of bronchoscopy-guided percutaneous dilatational tracheostomy (PDT) varies among intensivists. Simulation training (ST) can increase the safety of medical procedures by reducing stress levels of the performing team. The aim of this study was to evaluate the benefit of ST in PDT regarding procedural time, quality of performance, and percepted feelings of safety of the proceduralist and to compare conventional simulators (CSIM) with simulators generated from 3D printers (3DSIM). Methods: We conducted a prospective, single-center, randomized, blinded cross-over study comparing the benefit of CSIM versus 3DSIM for ST of PDT. Participants underwent a standardized theoretical training and were randomized to ST with CSIM (group A) or 3DSIM (group B). After ST, participants' performance was assessed by two blinded examiners on a porcine trachea regarding time required for successful completion of PDT and correct performance (assessed by a performance score). Percepted feelings of safety were assessed before and after ST. This was followed by a second training and second assessment of the same aspects with crossed groups. Results: 44 participants were included: 24 initially trained with CSIM (group A) and 20 with 3DSIM (group B). Correctness of the PDT performance increased significantly in group B (p < .01) and not significantly in group A (p = .14). Mean procedural time required for performing a PDT after their second ST compared to the first assessment (p < .01) was lower with no difference between group A and group B and irrespective of the participants' previous experience regarding PDT, age, and sex. Moreover, percepted feelings of safety increased after the first ST in both groups (p < .001). Conclusions: ST can improve procedural skills, procedural time, and percepted feelings of safety of the proceduralist in simulated PDT.
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Affiliation(s)
- Moritz Wegner
- Department of Vascular and Endovascular Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Fabian Dusse
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Finnard Beeser
- Department of Vascular and Endovascular Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Nicolas Leister
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Marian Lefarth
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Simon-Richard Finke
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Bernhard Dorweiler
- Department of Vascular and Endovascular Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Sandra Emily Stoll
- Department of Anesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany
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Simulation-based procedure training (SBPT) in rarely performed procedures: a blueprint for theory-informed design considerations. Adv Simul (Lond) 2022; 7:13. [PMID: 35527267 PMCID: PMC9079208 DOI: 10.1186/s41077-022-00205-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/06/2022] [Indexed: 11/10/2022] Open
Abstract
Simulation-based procedure training is now integrated within health professions education with literature demonstrating increased performance and translational patient-level outcomes. The focus of published work has been centered around description of such procedural training and the creation of realistic part-task models. There has been little attention with regards to design consideration, specifically around how simulation and educational theory should directly inform programme creation. Using a case-based approach in cardiology as an example, we present a blueprint for theory-informed simulation-based procedure training linking learning needs analysis and defining suitable objectives to matched fidelity. We press the importance of understanding how to implement and utilise task competence benchmarking in practice, and the role of feedback and debriefing in cycles of repeated practice. We conclude with evaluation and argue why this should be considered part of the initial design process rather than an after-thought following education delivery.
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Abbott F, Ortega M, Bravo S, Basoalto R, Kattan E. Can we improve teaching and learning of percutaneous dilatational tracheostomy's bronchoscopic guidance? SAGE Open Med 2021; 9:20503121211002321. [PMID: 33796301 PMCID: PMC7983236 DOI: 10.1177/20503121211002321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/14/2022] Open
Abstract
Percutaneous dilatational tracheostomy has become the technique of choice in multiple intensive care units. Among innovations to improve procedural safety and success, bronchoscopic guidance of percutaneous dilatational tracheostomy has been advocated and successfully implemented by multiple groups. Most published literature focuses on the percutaneous dilatational tracheostomy operator, with scarce descriptions of the bronchoscopic particularities of the procedure. In this article, we provide 10 suggestions to enhance specific procedural aspects of bronchoscopic guidance of percutaneous dilatational tracheostomy, and strategies to optimize its teaching and learning, in order to promote learners' competence acquisition and increase patient safety.
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Affiliation(s)
- Francisco Abbott
- Departamento de Medicina Intensiva,
Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago,
Chile
- Departamento de Enfermedades
Respiratorias, Facultad de Medicina, Pontificia Universidad Católica de Chile,
Santiago, Chile
| | - Marcos Ortega
- Departamento de Medicina Intensiva,
Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago,
Chile
- Departamento de Enfermedades
Respiratorias, Facultad de Medicina, Pontificia Universidad Católica de Chile,
Santiago, Chile
| | - Sebastian Bravo
- Departamento de Medicina Intensiva,
Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago,
Chile
| | - Roque Basoalto
- Departamento de Medicina Intensiva,
Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago,
Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva,
Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago,
Chile
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Fuente R, Kattan E, Munoz‐Gama J, Puente I, Navarrete M, Kychenthal C, Fuentes R, Bravo S, Galvez V, Sepúlveda M. Development of a comprehensive Percutaneous Dilatational Tracheostomy process model for procedural training: A Delphi-based experts consensus. Acta Anaesthesiol Scand 2021; 65:244-256. [PMID: 32997799 DOI: 10.1111/aas.13716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Deconstructing a complex procedure improves skills learning, but no model has covered all relevant Percutaneous Dilatational Tracheostomy (PDT) procedural aspects. Moreover, the heterogeneity of techniques described may hinder trainees' competency acquisition. Our objective was to develop a PDT model for procedural training that includes a comprehensive step-by-step design. METHODS Procedural descriptions were retrieved after a structured search in medical databases. Activities were extracted and the adherence to McKinley's dimensions of procedural competence was analyzed. We developed a comprehensive PDT model, which was further validated through a Delphi-based consensus of Spanish-speaking international experts. RESULTS The 14 descriptions retrieved for analysis presented a median [interquartile range] of 18 [11-22] steps, covering 3 [2-4] of McKinley's dimensions. The Delphi panel's first model included all McKinley's dimensions, and was answered by 25 experts from nine countries, ending in the second round. The final model included 59 activities divided into six stages (51 from the initial model and eight proposed by experts) and performed by two operators (bronchoscopy and tracheostomy). CONCLUSIONS We have presented a PDT model that includes necessary competence dimensions to be considered complete. The model was validated by an experts' consensus, allowing to improve procedural training to promote safer patient care.
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Affiliation(s)
- Rene Fuente
- División de Anestesiología Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Jorge Munoz‐Gama
- Department of Computer Science School of Engineering Pontificia Universidad Católica de Chile Santiago Chile
| | - Ignacio Puente
- División de Anestesiología Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Matías Navarrete
- Department of Computer Science School of Engineering Pontificia Universidad Católica de Chile Santiago Chile
| | - Catalina Kychenthal
- División de Anestesiología Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Ricardo Fuentes
- División de Anestesiología Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Sebastian Bravo
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Victor Galvez
- Department of Computer Science School of Engineering Pontificia Universidad Católica de Chile Santiago Chile
| | - Marcos Sepúlveda
- Department of Computer Science School of Engineering Pontificia Universidad Católica de Chile Santiago Chile
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