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  1. Article ; Online: A case report of rapid diagnosis of atrial-oesophageal fistula by transthoracic echocardiogram with agitated saline injection.

    Galante, Ori / Braiman, Dana / Haim, Moti / Kobal, Sergio L

    European heart journal. Case reports

    2023  Volume 7, Issue 6, Page(s) ytad254

    Abstract: Background: Catheter ablation is a common treatment for atrial fibrillation (AF). Atrial-oesophageal fistula (AOF) is a rare yet fatal complication of catheter ablation. Chest computed tomography (CT) is the diagnostic modality of choice but may be ... ...

    Abstract Background: Catheter ablation is a common treatment for atrial fibrillation (AF). Atrial-oesophageal fistula (AOF) is a rare yet fatal complication of catheter ablation. Chest computed tomography (CT) is the diagnostic modality of choice but may be undiagnostic in up to 24% of cases.
    Case summary: We present the case of a 61-year-old male who presented with pleuritic chest pain, hypotension, fever, and coffee-ground emesis 20 days after cryoablation for AF. His chest CT was undiagnostic. Atrial-oesophageal fistula was diagnosed by injecting agitated saline into the nasogastric tube during a transthoracic echocardiogram (TTE) that showed bubbles in the left atrium and ventricle.
    Discussion: In the case presented, as often happens, the diagnosis of AOF was delayed for several days, during which the patient presented with septic shock and concomitant multiorgan failure. The high mortality rate associated with AOF is partially attributable to delayed diagnosis. As prompt surgical intervention offers the best chance of survival, a high level of suspicion is of the utmost importance. We suggest contrast-enhanced TTE as a potential diagnostic tool when a rapid and definitive diagnosis is crucial and CT is inconclusive. Since this procedure is not without risk, proper risk consideration and management are necessary.
    Language English
    Publishing date 2023-05-29
    Publishing country England
    Document type Case Reports
    ISSN 2514-2119
    ISSN (online) 2514-2119
    DOI 10.1093/ehjcr/ytad254
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Self-learning of cardiac ultrasound by medical students: can augmented online training improve and maintain manual POCUS skills over time?

    Gat, Tomer / Galante, Ori / Sadeh, Re'em / Kobal, Sergio L / Fuchs, Lior

    Journal of ultrasound

    2023  Volume 27, Issue 1, Page(s) 73–80

    Abstract: Background: The use of cardiac point of care ultra-sound is rapidly growing and so is the demand for quality POCUS teaching. POCUS teaching is usually conducted in small groups requiring much space and equipment. This study attempts to test whether ... ...

    Abstract Background: The use of cardiac point of care ultra-sound is rapidly growing and so is the demand for quality POCUS teaching. POCUS teaching is usually conducted in small groups requiring much space and equipment. This study attempts to test whether providing access to an E-learning module as an adjunct to a cardiac POCUS course can increase students' image acquisition skills. This will show POCUS teaching can improve significantly without having to invest a significant amount of resources.
    Methods: Medical students (N = 125) were divided into two groups and had undergone a hands-on Cardiac POCUS course before their internal clerkship. During the clerkship, members of both groups got to practice their POCUS skills in the internal wards. One group was provided with accounts to a cardiac POCUS teaching E-learning platform (eMedical Academy
    Results: The E-learning group performed significantly better than the course-only group in the 6-min exam total score, and at acquiring the following views: parasternal long axis view, apical four-chamber view, and the inferior vena cava view.
    Conclusion: E-learning platforms can be an efficient tool for improving cardiac POCUS teaching and maintaining POCUS skills. Using it as a supplement to a hands-on course provides better POCUS skills without the need of extra hands-on teaching.
    MeSH term(s) Humans ; Students, Medical ; Learning ; Echocardiography ; Heart/diagnostic imaging ; Time Factors
    Language English
    Publishing date 2023-07-26
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2365426-0
    ISSN 1876-7931 ; 1971-3495
    ISSN (online) 1876-7931
    ISSN 1971-3495
    DOI 10.1007/s40477-023-00804-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Downstream Imaging Studies Do Not Significantly Improve Outcome in Most Patients with Chest Pain Who Did Not Reach Their Target Heart Rate on a Stress ECHO Study.

    Henkin, Nativ / Karilker, Ifat / Kobal, Sergio L / Golan, Rachel / Shalev, Aryeh / Atar, Shaul / Henkin, Yaakov

    Journal of clinical medicine

    2023  Volume 12, Issue 14

    Abstract: Echocardiographic stress tests are often used to evaluate patients who complain of chest pain. However, some patients fail to reach the target heart rate required for the test to be conclusive (usually defined as 85% of the predicted maximal heart rate ... ...

    Abstract Echocardiographic stress tests are often used to evaluate patients who complain of chest pain. However, some patients fail to reach the target heart rate required for the test to be conclusive (usually defined as 85% of the predicted maximal heart rate based on the patient's age) and are often sent for additional imaging tests, such as myocardial perfusion imaging (MPI) or cardiac computed tomography angiography (CTA). Few studies have evaluated the effectiveness of these additional tests in patients who present with chest pain but did not meet the heart rate requirements for a stress test. The primary objective of the study was to evaluate the efficacy of additional imaging tests for patients who experience chest pain during daily activities but are unable to reach the target heart rate currently required for an echocardiographic stress test. The study group included 415 consecutive patients who underwent a stress echocardiogram, did not achieve their target heart rate, and did not demonstrate abnormal changes during the test. The control group consisted of 415 consecutive patients who did reach their target heart rate and demonstrated no signs of ischemia. Demographic and clinical data, medication use, imaging test results (MPI, CTA, and/or coronary catheterization) and documented cardiac events that occurred during 1 year of follow-up were obtained from the electronic medical records. Of the 415 patients in the study group, 73 (17.6%) were referred to another imaging test within 12 months. Of these 73 patients, 59 underwent MPI and 14 underwent cardiac CTA. In 12 of these patients (16.4%) the test was considered to be abnormal, but only 7 patients (1.7%) subsequently underwent a percutaneous intervention (PCI). In the control group, 28 (6.7%) patients were referred for another imaging test. Of these 28 patients, 14 underwent MPI and 14 underwent cardiac CTA. None of these tests were found to be abnormal, but two patients (0.5%) underwent a PCI (
    Language English
    Publishing date 2023-07-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm12144832
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Embolisation of a prosthetic mitral valve fragment during valve-in-valve transcatheter mitral valve implantation.

    Alnsasra, Hilmi / Koifman, Edward / Abu-Salman, Amjad / Kobal, Sergio L / Cafri, Carlos

    EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology

    2021  Volume 17, Issue 18, Page(s) 1534–1535

    MeSH term(s) Cardiac Catheterization/adverse effects ; Heart Valve Prosthesis ; Heart Valve Prosthesis Implantation/adverse effects ; Humans ; Mitral Valve/diagnostic imaging ; Mitral Valve/surgery ; Mitral Valve Insufficiency/diagnostic imaging ; Mitral Valve Insufficiency/surgery ; Treatment Outcome
    Language English
    Publishing date 2021-11-28
    Publishing country France
    Document type Journal Article
    ZDB-ID 2457174-X
    ISSN 1969-6213 ; 1774-024X
    ISSN (online) 1969-6213
    ISSN 1774-024X
    DOI 10.4244/EIJ-D-21-00630
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Accuracy and Efficacy of Hand-Held Echocardiography in Diagnosing Valve Disease: A Systematic Review.

    Thomas, Felix / Flint, Nir / Setareh-Shenas, Saman / Rader, Florian / Kobal, Sergio L / Siegel, Robert J

    The American journal of medicine

    2018  Volume 131, Issue 10, Page(s) 1155–1160

    Abstract: In recent years, advances in technology have enabled hand-held echocardiography (HHE) to generate high-quality 2-dimensional and color Doppler images. As these devices become smaller, simpler, and more affordable, the question of whether HHE can augment ... ...

    Abstract In recent years, advances in technology have enabled hand-held echocardiography (HHE) to generate high-quality 2-dimensional and color Doppler images. As these devices become smaller, simpler, and more affordable, the question of whether HHE can augment or replace auscultation as the primary mode of cardiovascular diagnosis has become increasingly more relevant. If widely implemented, HHE has the potential for significant cost savings and better resource utilization. This review examines studies comparing the sensitivities of auscultation, HHE, and standard echocardiography in detecting various valvular lesions and discusses why current evidence supports the use of HHE to augment the physical examination, which can lead to more reliable and rapid bedside diagnoses, triage, and appropriate treatment of structural cardiac abnormalities.
    MeSH term(s) Dimensional Measurement Accuracy ; Echocardiography/methods ; Echocardiography/standards ; Heart Valve Diseases/diagnosis ; Humans
    Language English
    Publishing date 2018-05-30
    Publishing country United States
    Document type Journal Article ; Systematic Review
    ZDB-ID 80015-6
    ISSN 1555-7162 ; 1873-2178 ; 0002-9343 ; 1548-2766
    ISSN (online) 1555-7162 ; 1873-2178
    ISSN 0002-9343 ; 1548-2766
    DOI 10.1016/j.amjmed.2018.04.043
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: [Portable ultrasound devices: a novel bedside approach for diagnosing cardiovascular disease].

    Kobal, Sergio L / Horowitz, Itai / Liel-Cohen, Noah

    Harefuah

    2014  Volume 153, Issue 9, Page(s) 537–40, 557

    Abstract: Bedside cardiovascular diagnosis by examination, palpation and auscultation is sub-optimal, even when performed by experts. While the diagnostic accuracy of imaging techniques is superior to physical examination, the feasibility of its integration into ... ...

    Abstract Bedside cardiovascular diagnosis by examination, palpation and auscultation is sub-optimal, even when performed by experts. While the diagnostic accuracy of imaging techniques is superior to physical examination, the feasibility of its integration into bedside examination has been precluded by the size and cost of imaging technology. Beyond these practical limitations, expertise in image acquisition and assessment is required. Nonetheless, these problems could be resolved by a low cost, easy to use, portable imaging device that could be used routinely at the bedside. Small, high-resolution cardiac ultrasound units have been developed. Published studies have demonstrated a remarkable increase in the accuracy of cardiovascular diagnosis by cardiologists and non-cardiologists when they added a brief cardiac ultrasound study to their conventional physical examination. This new diagnostic methodology is becoming common practice among cardiologists and non- cardiologists. As its use is becoming more popular, several factors must be resolved, such as: Which personnel may use it? Is the training necessary or compulsory? Which entities are responsible for training and continuous education? decisions regarding documentation, of findings and exams, and more. In this review, we will provide the latest literature updates and discuss whether there is enough evidence to justify the use of ultrasound mobile devices for a focused ultrasound examination to complement the traditional physical examination.
    MeSH term(s) Cardiovascular Diseases/diagnosis ; Cardiovascular Diseases/diagnostic imaging ; Echocardiography/instrumentation ; Equipment Design ; Humans ; Point-of-Care Systems
    Language Hebrew
    Publishing date 2014-09
    Publishing country Israel
    Document type Journal Article ; Review
    ZDB-ID 953872-0
    ISSN 0017-7768
    ISSN 0017-7768
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Peer-teaching cardiac ultrasound among medical students: A real option.

    Ben-Sasson, Alon / Lior, Yotam / Krispel, Jonathan / Rucham, Moshe / Liel-Cohen, Noah / Fuchs, Lior / Kobal, Sergio L

    PloS one

    2019  Volume 14, Issue 3, Page(s) e0212794

    Abstract: Introduction: Teaching cardiac ultrasound (CU) image acquisition requires hands-on practice under qualified instructors supervision. We assessed the efficacy of teaching medical students by their previously trained classmates (teaching assistants [TAs]) ...

    Abstract Introduction: Teaching cardiac ultrasound (CU) image acquisition requires hands-on practice under qualified instructors supervision. We assessed the efficacy of teaching medical students by their previously trained classmates (teaching assistants [TAs]) compared to teaching by expert trainers (cardiologists or diagnostic medical sonographers.
    Methods: Sixty-six students received 8-hour CU training: 4-hour lectures on ultrasound anatomy and imaging techniques of 6 main CU views (parasternal long [PLAV] and short axis [PSAV]; apical 4-chamber [4ch], 2-chamber [2ch], and 3-chamber [3ch]; and sub costal [SC]) followed by 4 hours of hands-on exercise in groups of ≤5 students under direct supervision of a TA (group A: 44 students) or a qualified trainer (group B: 22 students). Students' proficiency was evaluated on a 6-minute test in which they were required to demonstrate 32 predetermined anatomic landmarks spread across the 6 views and ranked on a 0-100 scale according to a predetermined key.
    Results: The 6-minute test final grade displayed superiority of group A over group B (54±17 vs. 39±21, respectively [p = 0.001]). This trend was continuous across all 6 main views: PLAV (69±18 vs. 54±23, respectively), PSAV (65±33 vs. 41±32, respectively), 4ch (57±19 vs. 43±26, respectively), 2ch (37±29 vs. 33±27, respectively), 3ch (48±23 vs. 35±25, respectively), and SC (36±27 vs. 24±28, respectively).
    Conclusions: Teaching medical students CU imaging acquisition by qualified classmates is feasible. Moreover, students instructors were superior to senior instructors when comparing their students' capabilities in a practical test. Replacing experienced instructors with TAs could help medical schools teach ultrasound techniques with minimal dependence on highly qualified trainers.
    MeSH term(s) Adult ; Clinical Competence ; Curriculum ; Echocardiography ; Education, Medical, Undergraduate/methods ; Educational Measurement/statistics & numerical data ; Feasibility Studies ; Female ; Heart/diagnostic imaging ; Humans ; Male ; Peer Group ; Program Evaluation ; Prospective Studies ; Schools, Medical ; Students, Medical/statistics & numerical data ; Teaching
    Language English
    Publishing date 2019-03-27
    Publishing country United States
    Document type Journal Article
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0212794
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Global longitudinal strain and long-term outcome in patients presenting to the emergency department with suspected acute coronary syndrome.

    Fuks, Alexander / Liel-Cohen, Noah / Blondheim, David S / Shimoni, Sara / Jabaren, Mohamed / Leitman, Marina / Adawi, Salim / Jaffe, Ronen / Karkabi, Basheer / Asmer, Ihab / Ganaeem, Majdi / Kobal, Sergio L / Lavi, Idit / Saliba, Walid / Shiran, Avinoam

    Echocardiography (Mount Kisco, N.Y.)

    2021  Volume 38, Issue 8, Page(s) 1254–1262

    Abstract: Aims: We have previously shown that 2-dimentional strain is not a useful tool for ruling out acute coronary syndrome (ACS) in the emergency department (ED). The aim of the present study was to determine whether in patients with suspected ACS, global ... ...

    Abstract Aims: We have previously shown that 2-dimentional strain is not a useful tool for ruling out acute coronary syndrome (ACS) in the emergency department (ED). The aim of the present study was to determine whether in patients with suspected ACS, global longitudinal strain (GLS), measured in the ED using 2-dimensional strain imaging, can predict long-term outcome.
    Methods: Long-term (median 7.7 years [IQR 6.7-8.2]) major adverse cardiac events (MACE; cardiac death, ACS, revascularization, hospitalization for heart failure, or atrial fibrillation) and all-cause mortality data were available in 525/605 patients (87%) enrolled in the Two-Dimensional Strain for Diagnosing Chest Pain in the Emergency Room (2DSPER) study. The study prospectively enrolled patients presenting to the ED with chest pain and suspected ACS but without a diagnostic ECG or elevated troponin. GLS was computed using echocardiograms performed within 24 hours of chest pain. MACE of patients with worse GLS (>median GLS) were compared to patients with better GLS (≤ median GLS).
    Results: Median GLS was -18.7%. MACE occurred in 47/261 (18%) of patients with worse GLS as compared with 45/264 (17%) with better GLS, adjusted HR 0.87 (95% CI 0.57-1.33, P = .57). There was no significant difference in all-cause mortality or individual endpoints between groups. GLS did not predict MACE even in patients with optimal 2-dimensional image quality (n = 164, adjusted HR=1.51, 95% CI 0.76-3.0).
    Conclusions: Global longitudinal strain did not predict long-term outcome in patients presenting to the ED with chest pain and suspected ACS, supporting our findings in the 2DSPER study.
    MeSH term(s) Acute Coronary Syndrome/diagnostic imaging ; Chest Pain/diagnostic imaging ; Echocardiography ; Emergency Service, Hospital ; Humans ; Predictive Value of Tests
    Language English
    Publishing date 2021-06-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 843645-9
    ISSN 1540-8175 ; 0742-2822
    ISSN (online) 1540-8175
    ISSN 0742-2822
    DOI 10.1111/echo.15129
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Early Point-of-Care Ultrasound Assessment for Medical Patients Reduces Time to Appropriate Treatment: A Pilot Randomized Controlled Trial.

    Ben-Baruch Golan, Yael / Sadeh, Re'em / Mizrakli, Yuval / Shafat, Tali / Sagy, Iftach / Slutsky, Tzachi / Kobal, Sergio L / Novack, Victor / Fuchs, Lior

    Ultrasound in medicine & biology

    2020  Volume 46, Issue 8, Page(s) 1908–1915

    Abstract: Numerous studies emphasize the diagnostic importance of point-of-care ultrasound (POCUS), but the level of evidence remains low as most data are gathered from observational studies. We conducted a pilot, randomized controlled trial to evaluate the effect ...

    Abstract Numerous studies emphasize the diagnostic importance of point-of-care ultrasound (POCUS), but the level of evidence remains low as most data are gathered from observational studies. We conducted a pilot, randomized controlled trial to evaluate the effect of POCUS exam on medical patient's management and clinical outcomes. Patients presenting with chest pain or dyspnea were enrolled and randomly allocated to an early POCUS scan group and a control group. POCUS assessment, within 24 h of internal ward admission, was conducted only for the intervention group. The primary outcome was time to correct diagnosis. Secondary outcomes included time to appropriate treatment, POCUS-related rate of primary diagnosis alteration and new clinically relevant findings and time to hospital discharge. Sixty patients were enrolled. Thirty patients were randomly allocated to each study arm. The POCUS exam revealed clinically relevant findings among 79% of patients and led to alteration of the primary diagnosis among 28% of patients. Time to appropriate treatment was significantly shorter among patients in the POCUS group compared with the control group (median time of 5 h [95% confidence interval: 0.5-9] vs. 24 h [95% CI: 19-29] p = 0.014). The time needed to achieve correct diagnosis by the primary team was shorter in the POCUS group compared with the control group, yet it did not reach statistical significance (median time of 24 h [95% CI: 18-30] vs. 48 h [95% CI: 20-76], p = 0.12). These results indicate that POCUS assessment conducted early among patients with dyspnea or chest pain improves diagnostic accuracy and shortens significantly the time to appropriate treatment.
    MeSH term(s) Aged ; Aged, 80 and over ; Humans ; Pilot Projects ; Point-of-Care Testing ; Time Factors ; Ultrasonography/methods
    Language English
    Publishing date 2020-05-16
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 186150-5
    ISSN 1879-291X ; 0301-5629
    ISSN (online) 1879-291X
    ISSN 0301-5629
    DOI 10.1016/j.ultrasmedbio.2020.03.023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The feasibility and efficacy of implementing a focused cardiac ultrasound course into a medical school curriculum.

    Kobal, Sergio L / Lior, Yotam / Ben-Sasson, Alon / Liel-Cohen, Noah / Galante, Ori / Fuchs, Lior

    BMC medical education

    2017  Volume 17, Issue 1, Page(s) 94

    Abstract: Background: Teaching cardiac ultrasound to medical students in a brief course is a challenge. We aimed to evaluate the feasibility of teaching large groups of medical students the acquisition and interpretation of cardiac ultrasound images using a ... ...

    Abstract Background: Teaching cardiac ultrasound to medical students in a brief course is a challenge. We aimed to evaluate the feasibility of teaching large groups of medical students the acquisition and interpretation of cardiac ultrasound images using a pocket ultrasound device (PUD) in a short, specially designed course.
    Methods: Thirty-one medical students in their first clinical year participated in the study. All were novices in the use of cardiac ultrasound. The training consisted of 4 hours of frontal lectures and 4 hours of hands-on training. Students were encouraged to use PUD for individual practice. Finally, the students' proficiency in the acquisition of ultrasound images and their ability to recognize normal and pathological states were evaluated.
    Results: Sixteen of 27 (59%) students were able to demonstrate all main ultrasound views (parasternal, apical, and subcostal views) in a six-minute test. The most obtainable view was the parasternal long-axis view (89%) and the least obtainable was the subcostal view (58%). Ninety-seven percent of students correctly differentiated normal from severely reduced left ventricular function, 100% correctly differentiated a normal right ventricle from a severely hypokinetic one, 100% correctly differentiated a normal mitral valve from a rheumatic one, and 88% correctly differentiated a normal aortic valve from a calcified one, while 95% of them correctly identified the presence of pericardial effusion.
    Conclusions: Training of medical students in cardiac ultrasound during the first clinical year using a short, focused course is feasible and enables students with modest ability to acquire the main transthoracic ultrasound views and gain proficiency in the diagnosis of a limited number of cardiac pathologies.
    Language English
    Publishing date 2017-05-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2044473-4
    ISSN 1472-6920 ; 1472-6920
    ISSN (online) 1472-6920
    ISSN 1472-6920
    DOI 10.1186/s12909-017-0928-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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