Name: mechanical ventilation boot camp curriculum
Uploaded: 2018-03-12T15:00:00
Description: Watch this Scientific Journal Video about Mechanical Ventilation Boot Camp Curriculum at JoVE.com

The authors would like to thank Anna Ciullo, M.D. for her assistance with curriculum development and execution. There was no outside funding for this report.

All methods described here were found to be exempt from review by the Summa Institutional Review Board.
1. Day 1 &#8211; Pre-Testing Evaluation
<ol>
	<li>Print critical action checklists, pretest confidence surveys, pretest cognitive multiple-choice exams.</li>
	<li>Place three human-patient simulators in ICU beds with the following designations: acute respiratory distress syndrome (ARDS), complete lung atelectasis secondary to mucus plugging, and pneumothorax. Set simulators in separate roo...

<ol>
	<li>Slutsky, A. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=History+of+mechanical+ventilation.+From+vesalius+to+ventilator-induced+lung+injury.">History of mechanical ventilation. From vesalius to ventilator-induced lung injury.</a> Am J Respir Crit Care Med. 191 (10), 1106-1115 (2015).</li><li>Ahmed, N., Devitt, K. S., Keshet, I., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+Systematic+Review+of+the+Effects+of+Resident+Duty+Hour+Restrictions+in+Surgery.">A Systematic Review of the Effects of Resident Duty Hour Restrictions in Surgery.</a> Ann Surg. 259 (6), 1041-1053 (2014).</li><li>Ziv, A., Wolpe, P. R., Small, S. D., Glick, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simulation-Based+Medical+Education:+An+Ethical+Imperative.">Simulation-Based Medical Education: An Ethical Imperative.</a> Acad Med. 78 (8), 783-788 (2003).</li><li>Duwat, A., Hubert, V., Deransy, R., Dupont, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Difficult+airway+management:+assessment+of+knowledge+and+experience+in+anaesthesiology+residents.">Difficult airway management: assessment of knowledge and experience in anaesthesiology residents.</a> Ann Fr Anesth Reanim. 32 (40), 231-234 (2013).</li><li>Lee, M. O., Brown, L. L., Bender, J., Machan, J. T., Overly, F. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+medical+simulation-based+educational+intervention+for+emergency+medicine+residents+in+neonatal+resuscitation.">A medical simulation-based educational intervention for emergency medicine residents in neonatal resuscitation.</a> Acad Emerg Med. 19 (5), 577-585 (2012).</li><li>Barsuk, J. H., Cohen, E. R., Caprio, T., McGaghie, W. C., Simuni, T., Wayne, D. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simulation-based+education+with+mastery+learning+improves+residents'+lumbar+puncture+skills.">Simulation-based education with mastery learning improves residents' lumbar puncture skills.</a> Neurology. 79 (2), 132-137 (2012).</li><li>Barsuk, J. H., Cohen, E. R., Vozenilek, J. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simulation-based+education+with+mastery+learning+improves+paracentesis+skills.">Simulation-based education with mastery learning improves paracentesis skills.</a> J Grad Med Educ. 4 (1), 23-27 (2012).</li><li>Sohmer, B., Hudson, C., Hudson, J., Posner, G. D., Naik, V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transesophageal+echocardiography+simulation+is+an+effective+tool+in+teaching+psychomotor+skills+to+novice+echocardiographers.">Transesophageal echocardiography simulation is an effective tool in teaching psychomotor skills to novice echocardiographers.</a> Can J Anaesth. 61 (3), 235-241 (2014).</li><li>Sigounas, V. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evaluation+of+simulation-based+training+model+on+vascular+anastomotic+skills+for+surgical+residents.">Evaluation of simulation-based training model on vascular anastomotic skills for surgical residents.</a> Simul Healthc. 7 (6), 334-338 (2012).</li><li>Dawe, S. R., Windsor, J. A., Broeders, J. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+systematic+review+of+surgical+skills+transfer+after+simulation-based+training:+laparoscopic+cholecystectomy+and+endoscopy.">A systematic review of surgical skills transfer after simulation-based training: laparoscopic cholecystectomy and endoscopy.</a> Ann Surg. 259 (2), 236-248 (2014).</li><li>Spadaro, S., Karbing, D. S., Fogagnolo, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simulation+Training+for+Residents+Focused+on+Mechanical+Ventilation.">Simulation Training for Residents Focused on Mechanical Ventilation.</a> Simul Healthc. , (2017).</li><li>Yee, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+Ventilation+Boot+Camp:+A+Simulation-Based+Pilot+Study.">Mechanical Ventilation Boot Camp: A Simulation-Based Pilot Study.</a> Crit Care Res Pract. 2016, (2016).</li><li>Ryoo, E. N., Ha, E. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Importance+of+Debriefing+in+Simulation-Based+Learning:+Comparison+Between+Debriefing+and+No+Debriefing.">The Importance of Debriefing in Simulation-Based Learning: Comparison Between Debriefing and No Debriefing.</a> Comput Inform Nurs. 33 (12), 538-545 (2015).</li><li>Shinnick, M. A., Woo, M., Horwich, T. B., Steadman, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Debriefing:+The+Most+Important+Component+in+Simulation?.">Debriefing: The Most Important Component in Simulation?.</a> Clin Simul Nurs. 7 (3), e105-e111 (2011).</li></ol>

The boot camp consists of three separate sessions. During the first day, learners complete a pre-testing confidence survey and medical knowledge test before undergoing a five-minute scenario. Faculty evaluate the learners using pre-determined critical actions. Leaners are then given asynchronous reading to complete before day 2. The second day is composed of the intervention stage, where groups of 2-3 learners work through five different scenarios. Faculty are at the bedside to provide immediate and personalized feedback...

This boot camp was developed to teach residents how to manage a mechanically-ventilated patient, as well as troubleshoot ventilator alarms. Management of this patient population may be intimidating to the novice practitioner who may have limited experience with critically ill patients. Teaching critical care principles at the bedside is made more difficult by national work-hour restrictions1,2, and medicolegal concerns3 in the United States. Simulation is an effective modality to develop and refine critical care skills4,5, as well as invasive procedures6,7,8,9,10. Through simulation, learners may experience what the consequences of their medical decision-making is without putting patients at risk. This curriculum allows for a variety of different learning modalities, including bedside teaching from an intensivist, hands-on practice with a ventilator, and supplemental asynchronous reading.
Previous studies have shown increased knowledge with mannequin-based education of mechanical ventilation11,12. Spadaro et al.11 compared computer-based training with mannequin-based training for anesthesiology residents undergoing simulation-based teaching of mechanical ventilation. Residents who underwent mannequin-based training had higher key action and global rating scores. As noted in our previous study12, first-year residents demonstrated improved knowledge, confidence, and competency after the conclusion of this boot camp curriculum.
As written, this three-day curriculum allows for educators to initially assess their learners&#39; baseline knowledge on day one, as well as evaluate changes in competency, knowledge, and confidence upon curriculum completion on day three. Days one and three are dedicated towards assessment, while the second day is focused on bedside teaching by content experts. Pathological conditions (acute respiratory distress syndrome [ARDS], atelectasis secondary to mucus plugging, and pneumothorax) were used for the initial assessment and final testing days, while an altered mental status station was added during the teaching day to review ventilator basics. Dynamic hyperinflation was also added to the teaching day as to reinforce ventilator diagnostics and management, including its consideration in patients with a high plateau pressure. Educators may substitute the pathologies as they feel appropriate for their teaching needs.
In preparation, simulation faculty held an initial rehearsal day to ensure all participating educators were aware of their roles and to ensure equipment was working appropriately. While we used simulation faculty for assessment and critical care physicians for teaching, educators may adjust the roles of faculty as resources dictate. Execution of this boot camp requires preparatory logistics planning. First-year residents should be scheduled protected time to ensure they can complete all three days of the curriculum. Intensivists will need to schedule time off in advance to attend bedside teaching sessions. Simulation equipment such as breathing simulators, mechanical ventilators, and human-patient simulators may have to be purchased, rented, or borrowed.

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mechanical ventilation boot camp curriculum

Medical management of mechanically ventilated patients is challenging to novice providers. Incorrect management of this population may lead to increased morbidity and mortality. A three-day simulation-based boot camp serves to provide one-on-one instruction with a critical care provider. These intensivists may dispense personalized immediate feedback as learners engage in hands-on practice with a real mechanical ventilator. Multiple different pathologies can be reviewed that may not be encountered in the clinical setting. Learners can visualize immediate consequences of their actions and may troubleshoot and ask questions, all while in a safe learning environment. We describe the use of human-patient simulators connected to breathing simulators and mechanical ventilators. Potential curriculum executors should be aware of the cost of the equipment and the time needed to dedicate to boot camp execution; however, this intensive interactive training has been shown to increase provider competency, knowledge, and confidence in ventilator management. This curriculum outline provides guidance on how to execute a simulation-based boot camp to train providers on the management of mechanically ventilated patients.

As noted in Yee et al, first-year residents who underwent this boot camp demonstrated significantly improved confidence, knowledge, and performance12. Cognitive knowledge, assessed by the pre- and post-intervention multiple choice tests, increased from a mean score of 40.3% to 67.1%, with a mean change in score of +26.8% (Figure 1).
Critical actions were evaluated by...

Watch this Scientific Journal Video about Mechanical Ventilation Boot Camp Curriculum at JoVE.com

Mechanical Ventilation Boot Camp Curriculum

This curriculum outlines how to execute a simulation-based boot camp to teach providers how to manage mechanically ventilated patients.

Medical management of mechanically ventilated patients is challenging to novice providers. Incorrect management of this population may lead to increased ...

mechanical-ventilation-boot-camp-curriculum

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Unit 1

Fundamentals of Respiratory Care: Techniques and Management

SCIENTISTS IN ACTION

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation

We describe a novel non surgical technique to maintain oxygenation and ventilation in a case of difficult intubation and difficult ventilation, which works especially well with poor mask fit.
Can not intubate, can not ventilate" (CICV) is a potentially life threatening situation. In this video we present a simulation of the technique we used in a case of CICV where oxygenation and ventilation were maintained by inserting an endotracheal tube (ETT) nasally down to the level of the naso-pharynx while sealing the mouth and nares for successful positive pressure ventilation.
A 13 year old patient was taken to the operating room for incision and drainage of a neck abcess and direct laryngobronchoscopy. After preoxygenation, anesthesia was induced intravenously. Mask ventilation was found to be extremely difficult because of the swelling of the soft tissue. The face mask could not fit properly on the face due to significant facial swelling as well. A direct laryngoscopy was attempted with no visualization of the larynx. Oxygen saturation was difficult to maintain, with saturations falling to 80%. In order to oxygenate and ventilate the patient, an endotracheal tube was then inserted nasally after nasal spray with nasal decongestant and lubricant. The tube was pushed gently and blindly into the hypopharynx. The mouth and nose of the patient were sealed by hand and positive pressure ventilation was possible with 100% O2 with good oxygen saturation during that period of time. Once the patient was stable and well sedated, a rigid bronchoscope was introduced by the otolaryngologist showing extensive subglottic and epiglottic edema, and a mass effect from the abscess, contributing to the airway compromise. The airway was secured with an ETT tube by the otolaryngologist.This video will show a simulation of the technique on a patient undergoing general anesthesia for dental restorations.

We describe a technique to maintain oxygenation and ventilation using an endotracheal tube inserted nasally to the level of the naso-pharynx while sealing the mouth and nares for successful positive pressure ventilation.

We describe a novel non surgical technique to maintain oxygenation and ventilation in a case of difficult intubation and difficult ventilation, which ...

Pressure Controlled Ventilation to Induce Acute Lung Injury in Mice

Murine models are extensively used to investigate acute injuries of different organs systems (1-34). Acute lung injury (ALI), which occurs with prolonged mechanical ventilation, contributes to morbidity and mortality of critical illness, and studies on novel genetic or pharmacological targets are areas of intense investigation (1-3, 5, 8, 26, 30, 33-36). ALI is defined by the acute onset of the disease, which leads to non-cardiac pulmonary edema and subsequent impairment of pulmonary gas exchange (36). We have developed a murine model of ALI by using a pressure-controlled ventilation to induce ventilator-induced lung injury (2). For this purpose, C57BL/6 mice are anesthetized and a tracheotomy is performed followed by induction of ALI via mechanical ventilation. Mice are ventilated in a pressure-controlled setting with an inspiratory peak pressure of 45 mbar over 1 - 3 hours. As outcome parameters, pulmonary edema (wet-to-dry ratio), bronchoalveolar fluid albumin content, bronchoalveolar fluid and pulmonary tissue myeloperoxidase content and pulmonary gas exchange are assessed (2). Using this technique we could show that it sufficiently induces acute lung inflammation and can distinguish between different treatment groups or genotypes (1-3, 5). Therefore this technique may be helpful for researchers who pursue molecular mechanisms involved in ALI using a genetic approach in mice with gene-targeted deletion.

A murine model for ventilator induced lung injury is an important tool to study an acute lung injury in vivo. Here, we report an easy applicable in situ model for acute lung injury using high-pressure mechanical ventilation to induce acute failure of the lung.

Murine models are extensively used to investigate acute injuries of different organs systems (1-34). Acute lung injury (ALI), which occurs with prolonged ...

Myo-mechanical Analysis of Isolated Skeletal Muscle

To assess the in vivo effects of therapeutic interventions for the treatment of muscle disease 1,2,3, quantitative methods are needed that measure force generation and fatigability in treated muscle. We describe a detailed approach to evaluating myo-mechanical properties in freshly explanted hindlimb muscle from the mouse. We describe the atraumatic harvest of mouse extensor digitorum longus muscle, mounting the muscle in a muscle strip myograph (Model 820MS; Danish Myo Technology), and the measurement of maximal twitch and tetanic tension, contraction time, and half-relaxation time, using a square pulse stimulator (Model S48; Grass Technologies). Using these measurements, we demonstrate the calculation of specific twitch and tetanic tension normalized to muscle cross-sectional area, the twitch-to-tetanic tension ratio, the force-frequency relationship curve and the low frequency fatigue curve 4. This analysis provides a method for quantitative comparison between therapeutic interventions in mouse models of muscle disease 1,2,3,5, as well as comparison of the effects of genetic modification on muscle function 6,7,8,9.

To assess the in vivo effects of therapeutic interventions for muscle disease, methods are needed to quantitate force generation and fatigability in treated muscle. We detail an approach to evaluating myo-mechanical properties in explanted mouse hindlimb muscle. This analysis provides a robust approach to quantitating the effects of genetic modification on muscle function, as well as comparison of therapies in mouse models of muscle disease.

To assess the in vivo effects of therapeutic interventions for the treatment of muscle disease 1,2,3, quantitative methods are needed that measure force ...

Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease

Accessory respiratory muscles help to maintain ventilation when diaphragm function is impaired. The following protocol describes a method for repeated measurements over weeks or months of accessory respiratory muscle activity while simultaneously measuring ventilation in a non-anesthetized, freely behaving mouse. The technique includes the surgical implantation of a radio transmitter and the insertion of electrode leads into the scalene and trapezius muscles to measure the electromyogram activity of these inspiratory muscles. Ventilation is measured by whole-body plethysmography, and animal movement is assessed by video and is synchronized with electromyogram activity. Measurements of muscle activity and ventilation in a mouse model of amyotrophic lateral sclerosis are presented to show how this tool can be used to investigate how respiratory muscle activity changes over time and to assess the impact of muscle activity on ventilation. The described methods can easily be adapted to measure the activity of other muscles or to assess accessory respiratory muscle activity in additional mouse models of disease or injury.

This paper introduces a method for repeated measurements of ventilation and respiratory muscle activity in a freely behaving amyotrophic lateral sclerosis (ALS) mouse model throughout disease progression with whole-body plethysmography and electromyography via an implanted telemetry device.

Accessory respiratory muscles help to maintain ventilation when diaphragm function is impaired. The following protocol describes a method for repeated ...

Emergency Undocking in Robotic Surgery: A Simulation Curriculum

The following is a training platform to allow robotic surgeons to develop the skills necessary to lead an interprofessional team in emergency undocking of a robotic system. In traditional robotic training for surgeons, a brief web based overview of performing an emergency undocking is provided during initial introductory training to the robotics system. During such a process, there is no training in delineation of interdisciplinary roles for operating room (OR) personnel. The training presented here uses formative simulation and debriefing followed by a lecture. For the simulation, a modified gynecologic simulator is draped in a steep trendelenburg position consistent with most gynecologic laparoscopic surgery. The training torso is modified using tubing hooked to pressure bags of red food colored IV fluid used to simulate a catastrophic vessel injury on demand. Positioned throughout the operating room setting is an interprofessional team consisting of embedded standardized persons (ESPs) to fulfill the roles of a circulating nurse, scrub nurse, anesthesiologist, and bedside assist surgeon. Robotic surgeons are presented a case scenario necessitating emergency undocking, and given control of the robotic instruments. The scenario is terminated following either successful completion of an emergency undock, or at five minutes due to the emergent nature of the case. A debriefing session with hands on training of the steps to emergency undocking, necessary equipment, troubleshooting techniques, and operating room personnel roles follows the simulation. The learners are presented with a short lecture reemphasizing the material presented in the debriefing for their own self-study. This training results in improved time accessing the patient, improved knowledge, confidence, and completion of critical actions, and can be replicated in most institutions. All robotic surgeons should be able to demonstrate competence in this crucial intervention. A limitation of the curriculum is ability to access the in-situ environment for training purposes.

This training platform is designed to allow robotic surgeons to develop the skills necessary to lead an interprofessional team in emergency undocking of the robotic system. Training includes the utilization of the technology and equipment to perform an emergency undocking, as well as delineation of roles for such a scenario.

The following is a training platform to allow robotic surgeons to develop the skills necessary to lead an interprofessional team in emergency undocking of ...

Mechanical Micronization of Lipoaspirates for Regenerative Therapy

Stromal vascular fraction (SVF) has become a regenerative tool for various diseases; however, legislation strictly regulates the clinical application of cell products using collagenase. Here, we present a protocol to generate an injectable mixture of SVF cells and native extracellular matrix from adipose tissue by a purely mechanical process. Lipoaspirates are put into a centrifuge and spun at 1,200 x g for 3 min. The middle layer is collected and separated into two layers (high-density fat at the bottom and low-density fat on the top). The upper layer is directly emulsified by intersyringe shifting, at a rate of 20 mL/s for 6x to 8x. The emulsified fat is centrifuged at 2,000 x g for 3 min, and the sticky substance under the oil layer is collected and defined as the extracellular matrix (ECM)/SVF-gel. The oil on the top layer is collected. Approximately 5 mL of oil is added to 15 mL of high-density fat and emulsified by intersyringe shifting, at a rate of 20 mL/s for 6x to 8x. The emulsified fat is centrifuged at 2,000 x g for 3 min, and the sticky substance is also ECM/SVF-gel. After the transplantation of the ECM/SVF-gel into nude mice, the graft is harvested and assessed by histologic examination. The result shows that this product has the potential to regenerate into normal adipose tissue. This procedure is a simple, effective mechanical dissociation procedure to condense the SVF cells embedded in their natural supportive ECM for regenerative purposes.

Here, we present a protocol to obtain stromal vascular fraction from adipose tissue through a series of mechanical processes, which include emulsification and multiple centrifugations.

Stromal vascular fraction (SVF) has become a regenerative tool for various diseases; however, legislation strictly regulates the clinical application of ...

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum

Death notification is an important and challenging aspect of Emergency Medicine. An Emergency Medicine physician must deliver bad news, often sudden and unexpected, to patients and family members without any previous relationship. Unskilled death notification after unexpected events can lead to the development of pathologic grief and posttraumatic stress disorder. It is paramount for Emergency Medicine physicians to be trained in and practice death notification techniques. The GRIEV_ING curriculum provides a conceptual framework for death notification. The curriculum has demonstrated improvement in learners&#8217; confidence and competence when delivering bad news. Rapid Cycle Deliberate Practice is a simulation-based medical education technique that uses within the scenario debriefing. This technique uses the concepts of mastery learning and deliberate practice. It allows educators to pause a scenario, provide directed feedback, and then let learners continue the simulation scenario the &#8220;right way.&#8221; The purpose of this scholarly work is to describe how to apply the Rapid Cycle Deliberate Practice debriefing technique to the GRIEV_ING death notification curriculum to more effectively train learners in the delivery of bad news.

The goal is to demonstrate how to apply the rapid cycle deliberate practice debriefing technique to the GRIEV_ING death notification curriculum.

Death notification is an important and challenging aspect of Emergency Medicine. An Emergency Medicine physician must deliver bad news, often sudden and ...

Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism

Lung transplantation (LTx) remains the standard of care for end-stage lung disease. A shortage of suitable donor organs and concerns over donor organ quality exacerbated by excessive geographic transportation distance and stringent donor organ acceptance criteria pose limitations to current LTx efforts. Ex situ lung perfusion (ESLP) is an innovative technology that has shown promise in attenuating these limitations. The physiologic ventilation and perfusion of the lungs outside of the inflammatory milieu of the donor body affords ESLP several advantages over traditional cold static preservation (CSP). There is evidence that negative pressure ventilation (NPV) ESLP is superior to positive pressure ventilation (PPV) ESLP, with PPV inducing more significant ventilator-induced lung injury, pro-inflammatory cytokine production, pulmonary edema, and bullae formation. The NPV advantage is perhaps due to the homogenous distribution of intrathoracic pressure across the entire lung surface. The clinical safety and feasibility of a custom NPV-ESLP device have been demonstrated in a recent clinical trial involving extender criteria donor (ECD) human lungs. Herein, the use of this custom device is described in a juvenile porcine model of normothermic NPV-ESLP over a 12 h duration, paying particular attention to management techniques. Pre-surgical preparation, including ESLP software initialization, priming, and de-airing of the ESLP circuit, and the addition of anti-thrombotic, anti-microbial, and anti-inflammatory agents, is specified. The intraoperative techniques of central line insertion, lung biopsy, exsanguination, blood collection, cardiectomy, and pneumonectomy are described. Furthermore, particular focus is paid to anesthetic considerations, with anesthesia induction, maintenance, and dynamic modifications outlined. The protocol also specifies the custom device's initialization, maintenance, and termination of perfusion and ventilation. Dynamic organ management techniques, including alterations in ventilation and metabolic parameters to optimize organ function, are thoroughly described. Finally, the physiological and metabolic assessment of lung function is characterized and depicted in the representative results.

Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism

This paper describes a porcine model of negative pressure ventilation ex situ lung perfusion, including procurement, attachment, and management on the custom-made platform. Focus is made on anesthetic and surgical techniques, as well as troubleshooting.

Lung transplantation (LTx) remains the standard of care for end-stage lung disease. A shortage of suitable donor organs and concerns over donor organ ...

Ultrasound in Evaluating Diaphragm Dysfunction and Monitoring Treatment

Measuring Diaphragm Thickness and Function Using Point-of-Care Ultrasound

The diaphragm is the main component of the respiratory muscle pump. Diaphragm dysfunction can cause dyspnea and exercise intolerance, and predisposes affected individuals to respiratory failure. In mechanically ventilated patients, the diaphragm is susceptible to atrophy and dysfunction through disuse and other mechanisms. This contributes to failure to wean and poor long-term clinical outcomes. Point-of-care ultrasound provides a valid and reproducible method for evaluating diaphragm thickness and contractile activity (thickening fraction during inspiration) that can be readily employed by clinicians and researchers alike. This article presents best practices for measuring diaphragm thickness and quantifying diaphragm thickening during tidal breathing or maximal inspiration. Once mastered, this technique can be used to diagnose and prognosticate diaphragm dysfunction, and guide and monitor response to treatment over time in both healthy individuals and acute or chronically ill patients.

Author Spotlight: Unraveling the Impact of Mechanical Ventilation on Diaphragm Function and Patient Outcomes 

Diaphragm thickness and function can be assessed in healthy individuals and critically ill patients using point-of-care ultrasound. This technique offers an accurate, reproducible, feasible, and well-tolerated method for evaluating diaphragm structure and function.

The diaphragm is the main component of the respiratory muscle pump. Diaphragm dysfunction can cause dyspnea and exercise intolerance, and predisposes ...

A Standardized Workflow for Hyperpolarized &lt;sup&gt;129&lt;/sup&gt;Xe MRI to Study Pulmonary Function

Acquiring Hyperpolarized 129Xe Magnetic Resonance Images of Lung Ventilation

Hyperpolarized 129Xe MRI comprises a unique array of structural and functional lung imaging techniques. Technique standardization across sites is increasingly important given the recent FDA approval of 129Xe as an MR contrast agent and as interest in 129Xe MRI increases among research and clinical institutions. Members of the 129Xe MRI Clinical Trials Consortium (Xe MRI CTC) have agreed upon best practices for each of the key aspects of the 129Xe MRI workflow, and these recommendations are summarized in a recent publication. This work provides practical information to develop an end-to-end workflow for collecting 129Xe MR images of lung ventilation according to the Xe MRI CTC recommendations. Preparation and administration of 129Xe for MR studies will be discussed and demonstrated, with specific topics including choice of appropriate gas volumes for entire studies and for individual MR scans, preparation&#160;and delivery of individual 129Xe doses, and best practices for monitoring subject safety and 129Xe tolerability during studies. Key MR technical considerations will also be covered, including pulse sequence types and optimized parameters, calibration of 129Xe flip angle and center frequency, and 129Xe MRI ventilation image analysis.

Author Spotlight: Standardization and Best Practices for Advancing Lung Imaging Using &lt;sup&gt;129&lt;/sup&gt;Xe MRI

Hyperpolarized 129Xe magnetic resonance imaging (MRI) is a method for studying regionally resolved aspects of pulmonary function. This work presents an end-to-end standardized workflow for hyperpolarized 129Xe MRI of lung ventilation, with specific attention to pulse sequence design, 129Xe dose preparation, scan workflow, and best practices for subject safety monitoring.