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  1. Article ; Online: Innovating medical education: Development of an affordable, 3-D printed knot-tying simulator.

    Pourak, Kian / Zugris, Nicholas / Palmon, Itai / Monovoukas, Demetri / Waits, Seth

    The clinical teacher

    2024  , Page(s) e13770

    Abstract: Background: Three-dimensional (3-D) printing offers an innovative option to produce clinical simulators because of its low production costs and widespread availability. We aimed to develop a low-cost, 3-D printed knot-tying simulator that overcomes the ... ...

    Abstract Background: Three-dimensional (3-D) printing offers an innovative option to produce clinical simulators because of its low production costs and widespread availability. We aimed to develop a low-cost, 3-D printed knot-tying simulator that overcomes the barriers students face in self-directed skills development.
    Approach: Medical students completing a procedural residency preparation course (PRPC) completed a pre-survey with Likert scales and multiple choice questions to assess their perceptions of and barriers to self-directed knot-tying practice. Subsequently, a 3-D printed knot-tying simulator, which contains a progression of knot-tying challenges and a designated video curriculum, was designed. After utilising the simulator in a 1-hour, faculty-guided knot-tying session, PRPC students assessed the educational utility and usability of the simulator via a post-survey.
    Evaluation: The primary barriers students faced in engaging in self-directed knot-tying practice included limited accessibility to simulators and insufficient knowledge of knot-tying techniques. Many students (91.3%, n = 21) agreed that practicing with the simulator improved their knot-tying motor skills and was easy to use (100%, n = 23). Twenty-two (95.7%) students agreed that they would continue to use the simulator beyond the knot-tying session and PRPC.
    Implications: We demonstrate the educational utility and usability of a novel 3-D printed knot-tying simulator for medical education. Enabling students to engage in self-directed technical skills development is critical in developing surgical skills that can translate to clinical environments. Our simulator highlights the benefits of 3-D printers as an innovative, inexpensive option to improve the availability and accessibility to medical education tools.
    Language English
    Publishing date 2024-04-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2151518-9
    ISSN 1743-498X ; 1743-4971
    ISSN (online) 1743-498X
    ISSN 1743-4971
    DOI 10.1111/tct.13770
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Nodo-Tie: an innovative, 3-D printed simulator for surgical knot-tying skills development.

    Pourak, Kian / Zugris, Nicholas / Palmon, Itai / Monovoukas, Demetri / Waits, Seth

    Surgery open science

    2023  Volume 16, Page(s) 221–225

    Abstract: Introduction: Clinical simulators are an important resource for medical students seeking to improve their fundamental surgical skills. Three-dimensional (3-D) printing offers an innovative method to create simulators due to its low production costs and ... ...

    Abstract Introduction: Clinical simulators are an important resource for medical students seeking to improve their fundamental surgical skills. Three-dimensional (3-D) printing offers an innovative method to create simulators due to its low production costs and reliable printing fidelity. We aimed to validate a 3-D printed knot-tying simulator named Nodo-Tie.
    Methods: We designed a 3-D printed knot-tying simulator integrated with a series of knot-tying challenges and a designated video curriculum made accessible via a quick-response (QR) code. The Nodo-Tie, which costs less than $1 to print and assemble, was distributed to second-year medical students starting their surgical clerkship. Participants were asked to complete a survey gauging the simulator's usability and educational utility. The time between simulator distribution and survey completion was eight weeks.
    Results: Students perceived the Nodo-Tie as easy-to-use (4.6 ± 0.8) and agreed it increased both their motor skills (4.5 ± 0.9) and confidence (4.5 ± 0.8) for tying surgical knots in the clinical setting. Many students agreed the Nodo-Tie provided a stable, durable surface for knot-tying practice (83.7%,
    Discussion: Medical students found this interactive, 3-D printed knot-tying simulator to be an effective tool to use for self-directed development of their knot-tying skills. Given the Nodo-Tie's low cost, students were able to keep the Nodo-Tie for use beyond the study period. This increases the opportunity for students to engage in the longitudinal practice necessary to master knot-tying as they progress through their medical education.
    Key messages: Clinical simulators provide proactive learners with reliable, stress-free environments to engage in self-directed surgical skills development. The Nodo-Tie, a 3-D printed simulator, serves as a cost-effective, interactive tool for medical students to develop their knot-tying abilities beyond the clinical setting.
    Language English
    Publishing date 2023-11-20
    Publishing country United States
    Document type Journal Article
    ISSN 2589-8450
    ISSN (online) 2589-8450
    DOI 10.1016/j.sopen.2023.11.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Adapting to the Times: Combining Microlearning Videos and Twitter to Teach Surgical Technique.

    Wakam, Glenn K / Palmon, Itai / Kulick, Alexandra A / Lark, Meghan / Sonnenday, Christopher J / Waits, Seth A

    Journal of surgical education

    2022  Volume 79, Issue 4, Page(s) 850–854

    Abstract: Objective: Surgical videos are commonly utilized by trainees to prepare for surgical cases. However, currently available videos tend to be of excessive length, variable quality, and exist behind paywalls or in other exclusive formats. Our objective was ... ...

    Abstract Objective: Surgical videos are commonly utilized by trainees to prepare for surgical cases. However, currently available videos tend to be of excessive length, variable quality, and exist behind paywalls or in other exclusive formats. Our objective was to create a series of videos that would address these shortcomings, and further allow for dynamic engagement between learners and experts.
    Design: Our group created surgical videos using principles of microlearning, an educational strategy which deconstructs content into small units and uses social media platforms where learners and educators may actively engage. We published a library of short (<3 min) videos covering various steps of abdominal transplantation operations on a YouTube channel. We leveraged Twitter to disseminate the content and engage with experts and learners from around the world.
    Setting: Multi-institutional.
    Results: Over the period from July 2020 to January 2021, 24 microlearning videos were created, stored on a YouTube channel, and posted to Twitter weekly using a newly created account. During that time period, the videos, averaging 124 seconds in length, were viewed 4393 times and watched for a total of 127 hours. The account gained 611 followers in 37 countries and 37 US states with 312,400 impressions (defined as tweet views). Twitter users who engaged with our microlearning content (favorite, retweet, or reply) included faculty (27%), residents (21%), fellows (8%), and medical students (11%).
    Conclusions: Broad participation with the educational material and discussion on Twitter demonstrated the potential for the microlearning technique to provide educational benefit for learners internationally. The spread of the tweets shows an opportunity to augment traditional surgical education, and the willingness of faculty to discuss alternative techniques with their peers. Our group will continue to develop a library of microlearning videos for surgical operations and engage with other institutions for collaboration and expansion.
    MeSH term(s) Educational Status ; Humans ; Social Media ; Students, Medical ; Video Recording ; Videotape Recording
    Language English
    Publishing date 2022-02-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2277538-9
    ISSN 1878-7452 ; 1931-7204
    ISSN (online) 1878-7452
    ISSN 1931-7204
    DOI 10.1016/j.jsurg.2022.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Non-high-density lipoprotein cholesterol and treatment targets in vascular surgery patients.

    Braet, Drew J / Pourak, Kian / Mouli, Vibav / Palmon, Itai / Dinh, Dan / Osborne, Nicholas H / Vemuri, Chandu / Brandt, Eric J

    Vascular

    2022  Volume 32, Issue 1, Page(s) 210–219

    Abstract: Introduction: Low-density lipoprotein cholesterol (LDL) is a known contributing factor to atherosclerotic cardiovascular disease (ASCVD) and a primary therapeutic target for medical management of ASCVD. Non-high-density lipoprotein cholesterol (non-HDL) ...

    Abstract Introduction: Low-density lipoprotein cholesterol (LDL) is a known contributing factor to atherosclerotic cardiovascular disease (ASCVD) and a primary therapeutic target for medical management of ASCVD. Non-high-density lipoprotein cholesterol (non-HDL) has recently been identified as a secondary therapeutic target but is not yet widely used in vascular surgery patients. We sought to assess if vascular surgery patients were undertreated per non-HDL therapeutic guidelines.
    Methods: This was an observational study that used a single-center database to identify a cohort of adult patients who received care from a vascular surgery provider from 01/2001 to 07/2021. ICD-9/10-CM codes were used to identify patients with a medical history of hyperlipidemia (HLD), coronary artery disease (CAD), cerebrovascular occlusive disease (CVOD), peripheral artery disease (PAD), hypertension (HTN), or diabetes mellitus (DM). Patient smoking status and medications were also identified. Lab values were obtained from the first and last patient encounter within our system. Primary outcomes were serum concentrations of LDL and non-HDL, with therapeutic thresholds defined as 70 mg/dL and 100 mg/dL, respectively.
    Results: The cohort included 2465 patients. At first encounter, average age was 59.3 years old, 21.4% were on statins, 8.4% were on a high-intensity statin, 25.7% were diagnosed with HLD, 5.2% with CAD, 15.3% with PAD, 26.3% with DM, 18.6% with HTN, and 2.1% with CVOD. At final encounter, mean age was 64.8 years, 23.5% were on statins with 10.1% on high-intensity statin. Diagnoses frequency did not change at final encounter. At first encounter, nearly two-thirds of patients were not at an LDL <70 mg/dL (62.3%) or non-HDL <100 mg/dL (66.0%) with improvement at final encounter to 45.2 and 40.5% of patients not at these LDL or non-HDL treatment thresholds, respectively. Patients on statins exhibited similar trends with 51.1 and 50.1% of patients not at LDL or non-HDL treatment thresholds at first encounter and 39.9 and 35.4% not at LDL or non-HDL treatment thresholds at last encounter. Importantly, 6.9% of patients were at LDL but not non-HDL treatment thresholds.
    Discussion: Among vascular surgery patients, over half did not meet non-HDL targets. These results suggest that we may be vastly under-performing adequate medical optimization with only about one-fourth of patients on a statin at their final encounter and approximately one-tenth of patients being treated with a high-intensity statin. With recent evidence supporting non-HDL as a valuable measurement for atherosclerotic risk, there is potential to optimize medical management beyond current high-intensity statin therapy. Further investigation is needed regarding the risk of adverse events between patients treated with these varied therapeutic targets.
    MeSH term(s) Adult ; Humans ; Middle Aged ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects ; Cholesterol/therapeutic use ; Lipoproteins ; Atherosclerosis ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/surgery ; Cholesterol, HDL
    Chemical Substances lipoprotein cholesterol ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Cholesterol (97C5T2UQ7J) ; Lipoproteins ; Cholesterol, HDL
    Language English
    Publishing date 2022-09-15
    Publishing country England
    Document type Observational Study ; Journal Article
    ZDB-ID 2137151-9
    ISSN 1708-539X ; 1708-5381
    ISSN (online) 1708-539X
    ISSN 1708-5381
    DOI 10.1177/17085381221126232
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Giant saphenous vein graft aneurysm compressing the lingular bronchus.

    Chiu, Peter / Palmon, Itai / Fischbein, Michael P

    The Journal of thoracic and cardiovascular surgery

    2016  Volume 153, Issue 1, Page(s) e1–e3

    MeSH term(s) Aneurysm/complications ; Aneurysm/diagnosis ; Aneurysm/surgery ; Bronchi/diagnostic imaging ; Bronchial Diseases/diagnosis ; Bronchial Diseases/etiology ; Bronchial Diseases/surgery ; Computed Tomography Angiography ; Constriction, Pathologic/diagnosis ; Constriction, Pathologic/etiology ; Coronary Angiography ; Coronary Artery Bypass/adverse effects ; Humans ; Male ; Middle Aged ; Reoperation ; Saphenous Vein/diagnostic imaging ; Saphenous Vein/transplantation ; Thoracotomy/methods
    Language English
    Publishing date 2016-09-17
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 3104-5
    ISSN 1097-685X ; 0022-5223
    ISSN (online) 1097-685X
    ISSN 0022-5223
    DOI 10.1016/j.jtcvs.2016.08.062
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Optimizing Existing Mental Health Screening Methods in a Dementia Screening and Risk Factor App: Observational Machine Learning Study.

    Kuleindiren, Narayan / Rifkin-Zybutz, Raphael Paul / Johal, Monika / Selim, Hamzah / Palmon, Itai / Lin, Aaron / Yu, Yizhou / Alim-Marvasti, Ali / Mahmud, Mohammad

    JMIR formative research

    2022  Volume 6, Issue 3, Page(s) e31209

    Abstract: Background: Mindstep is an app that aims to improve dementia screening by assessing cognition and risk factors. It considers important clinical risk factors, including prodromal symptoms, mental health disorders, and differential diagnoses of dementia. ... ...

    Abstract Background: Mindstep is an app that aims to improve dementia screening by assessing cognition and risk factors. It considers important clinical risk factors, including prodromal symptoms, mental health disorders, and differential diagnoses of dementia. The 9-item Patient Health Questionnaire for depression (PHQ-9) and the 7-item Generalized Anxiety Disorder Scale (GAD-7) are widely validated and commonly used scales used in screening for depression and anxiety disorders, respectively. Shortened versions of both (PHQ-2/GAD-2) have been produced.
    Objective: We sought to develop a method that maintained the brevity of these shorter questionnaires while maintaining the better precision of the original questionnaires.
    Methods: Single questions were designed to encompass symptoms covered in the original questionnaires. Answers to these questions were combined with PHQ-2/GAD-2, and anonymized risk factors were collected by Mindset4Dementia from 2235 users. Machine learning models were trained to use these single questions in combination with data already collected by the app: age, response to a joke, and reporting of functional impairment to predict binary and continuous outcomes as measured using PHQ-9/GAD-7. Our model was developed with a training data set by using 10-fold cross-validation and a holdout testing data set and compared to results from using the shorter questionnaires (PHQ-2/GAD-2) alone to benchmark performance.
    Results: We were able to achieve superior performance in predicting PHQ-9/GAD-7 screening cutoffs compared to PHQ-2 (difference in area under the curve 0.04, 95% CI 0.00-0.08, P=.02) but not GAD-2 (difference in area under the curve 0.00, 95% CI -0.02 to 0.03, P=.42). Regression models were able to accurately predict total questionnaire scores in PHQ-9 (R
    Conclusions: We app-adapted PHQ-4 by adding brief summary questions about factors normally covered in the longer questionnaires. We additionally trained machine learning models that used the wide range of additional information already collected in Mindstep to make a short app-based screening tool for affective disorders, which appears to have superior or equivalent performance to well-established methods.
    Language English
    Publishing date 2022-03-22
    Publishing country Canada
    Document type Journal Article
    ISSN 2561-326X
    ISSN (online) 2561-326X
    DOI 10.2196/31209
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Microlearning and Social Media: A Novel Approach to Video-Based Learning and Surgical Education.

    Palmon, Itai / Brown, Craig S / Highet, Alexandra / Kulick, Alexandra A / Barrett, Meredith E / Cassidy, Devon E / Herman, Alexandra E / Gomez-Rexrode, Amalia E / O'Reggio, Rachel / Sonnenday, Christopher / Waits, Seth A / Wakam, Glenn K

    Journal of graduate medical education

    2021  Volume 13, Issue 3, Page(s) 323–326

    MeSH term(s) Education, Distance ; Humans ; Internship and Residency ; Social Media ; Video Recording
    Language English
    Publishing date 2021-06-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2578612-X
    ISSN 1949-8357 ; 1949-8357
    ISSN (online) 1949-8357
    ISSN 1949-8357
    DOI 10.4300/JGME-D-20-01562.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Divergent effects of canonical and non-canonical TGF-β signalling on mixed contractile-synthetic smooth muscle cell phenotype in human Marfan syndrome aortic root aneurysms.

    Pedroza, Albert J / Koyano, Tiffany / Trojan, Jeffrey / Rubin, Adam / Palmon, Itai / Jaatinen, Kevin / Burdon, Grayson / Chang, Paul / Tashima, Yasushi / Cui, Jason Z / Berry, Gerry / Iosef, Cristiana / Fischbein, Michael P

    Journal of cellular and molecular medicine

    2019  Volume 24, Issue 3, Page(s) 2369–2383

    Abstract: Aortic root aneurysm formation is a cardinal feature of Marfan syndrome (MFS) and likely TGF-β driven via Smad (canonical) and ERK (non-canonical) signalling. The current study assesses human MFS vascular smooth muscle cell (SMC) phenotype, focusing on ... ...

    Abstract Aortic root aneurysm formation is a cardinal feature of Marfan syndrome (MFS) and likely TGF-β driven via Smad (canonical) and ERK (non-canonical) signalling. The current study assesses human MFS vascular smooth muscle cell (SMC) phenotype, focusing on individual contributions by Smad and ERK, with Notch3 signalling identified as a novel compensatory mechanism against TGF-β-driven pathology. Although significant ERK activation and mixed contractile gene expression patterns were observed by traditional analysis, this did not directly correlate with the anatomic site of the aneurysm. Smooth muscle cell phenotypic changes were TGF-β-dependent and opposed by ERK in vitro, implicating the canonical Smad pathway. Bulk SMC RNA sequencing after ERK inhibition showed that ERK modulates cell proliferation, apoptosis, inflammation, and Notch signalling via Notch3 in MFS. Reversing Notch3 overexpression with siRNA demonstrated that Notch3 promotes several protective remodelling pathways, including increased SMC proliferation, decreased apoptosis and reduced matrix metalloproteinase activity, in vitro. In conclusion, in human MFS aortic SMCs: (a) ERK activation is enhanced but not specific to the site of aneurysm formation; (b) ERK opposes TGF-β-dependent negative effects on SMC phenotype; (c) multiple distinct SMC subtypes contribute to a 'mixed' contractile-synthetic phenotype in MFS aortic aneurysm; and (d) ERK drives Notch3 overexpression, a potential pathway for tissue remodelling in response to aneurysm formation.
    MeSH term(s) Aorta/metabolism ; Aortic Aneurysm/metabolism ; Apoptosis/physiology ; Cell Line ; Cell Proliferation/physiology ; Humans ; Inflammation/metabolism ; Marfan Syndrome/metabolism ; Muscle Contraction/physiology ; Muscle, Smooth, Vascular/metabolism ; Myocytes, Smooth Muscle/metabolism ; Phenotype ; Receptor, Notch3/metabolism ; Signal Transduction/physiology ; Transforming Growth Factor beta/metabolism
    Chemical Substances Receptor, Notch3 ; Transforming Growth Factor beta
    Language English
    Publishing date 2019-12-30
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2074559-X
    ISSN 1582-4934 ; 1582-4934 ; 1582-1838
    ISSN (online) 1582-4934
    ISSN 1582-4934 ; 1582-1838
    DOI 10.1111/jcmm.14921
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Statins Reduce Thoracic Aortic Aneurysm Growth in Marfan Syndrome Mice via Inhibition of the Ras-Induced ERK (Extracellular Signal-Regulated Kinase) Signaling Pathway.

    Sato, Tetsuya / Arakawa, Mamoru / Tashima, Yasushi / Tsuboi, Eitoshi / Burdon, Grayson / Trojan, Jeffrey / Koyano, Tiffany / Youn, Young-Nam / Penov, Kiril / Pedroza, Albert J / Shabazzi, Mohammad / Palmon, Itai / Nguyen, Marie Noel / Connolly, Andrew J / Yamaguchi, Atsushi / Fischbein, Michael P

    Journal of the American Heart Association

    2018  Volume 7, Issue 21, Page(s) e008543

    Abstract: Background Statins reduce aneurysm growth in mouse models of Marfan syndrome, although the mechanism is unknown. In addition to reducing cholesterol, statins block farnesylation and geranylgeranylation, which participate in membrane-bound G-protein ... ...

    Abstract Background Statins reduce aneurysm growth in mouse models of Marfan syndrome, although the mechanism is unknown. In addition to reducing cholesterol, statins block farnesylation and geranylgeranylation, which participate in membrane-bound G-protein signaling, including Ras. We dissected the prenylation pathway to define the effect of statins on aneurysm reduction. Methods and Results Fbn1
    MeSH term(s) Animals ; Aortic Aneurysm, Thoracic/drug therapy ; Aortic Aneurysm, Thoracic/etiology ; Extracellular Signal-Regulated MAP Kinases/antagonists & inhibitors ; Female ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/pharmacology ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use ; Male ; Marfan Syndrome/complications ; Mice ; Mice, Inbred C57BL ; Pravastatin/pharmacology ; Pravastatin/therapeutic use ; Signal Transduction/drug effects
    Chemical Substances Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Extracellular Signal-Regulated MAP Kinases (EC 2.7.11.24) ; Pravastatin (KXO2KT9N0G)
    Language English
    Publishing date 2018-12-20
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2653953-6
    ISSN 2047-9980 ; 2047-9980
    ISSN (online) 2047-9980
    ISSN 2047-9980
    DOI 10.1161/JAHA.118.008543
    Database MEDical Literature Analysis and Retrieval System OnLINE

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