Educational Video Series

Permanent URI for this collectionhttps://hdl.handle.net/20.500.11875/4310

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Now showing 1 - 7 of 7

Measuring the Mean QRS Electrical Axis in an ECG
(2024) Garrison, Ryan, Osteopathic Medical Student; Dang, Kim Chi, Osteopathic Medical Student; Carter, Reagan, Osteopathic Medical Student; Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego F, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we unlock the electrocardiogram (ECG) mastery in deciphering the Mean Electrical Axis of the heart by using different approaches. In this educational video, we dive into the intricacies of electrocardiography (ECG) to determine the mean electrical axis of the heart. Led by our medical students, this tutorial aims to equip students, residents, and enthusiasts alike with the knowledge and skills needed to accurately interpret ECGs. Throughout the video, viewers will be guided step-by-step through different approaches for calculating the mean electrical axis, a crucial aspect of ECG interpretation that provides valuable insights into cardiac health and function. Starting with a brief overview of the vectorcardiogram principle, the tutorial gradually progresses to analyze the information generated in an ECG and apply it to interpret waveforms and their relation with the vectorial movement of electrical cardiac depolarization defining in its path a mean electrical axis. Detailed instructions on how to determine an electrical axis are laid out and clinical implications from real-life examples are presented. Featuring clear explanations and illustrative diagrams this video offers a guide to mastering the calculation of the mean electrical axis. Whether you are a medical student or a medical resident, this tutorial is sure to enhance your ability in ECG interpretation and contribute to better patient care.
How to Take a Diagnostic 12-lead ECG in a Male
(2024) Ramirez, Dana, Osteopathic Medical Student; Hapenciuc, Gabriel, Osteopathic Medical Student; Shillinglaw, Andrew, Osteopathic Medical Student; Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego F, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we present the technique for mastering 12-lead electrocardiogram (ECG) Electrode Placement in male subjects. Within the field of cardiology, precision in electrode placement is paramount for capturing high-fidelity ECG readings. Our immersive laboratory demonstration mirrors a real-world scenario, equipping medical students with the practical expertise needed to confidently position electrodes for optimal signal acquisition. Embark on this comprehensive journey through each essential step, beginning with meticulous skin preparation to ensure secure electrode adhesion and seamless signal transmission. Navigate the intricacies of limb lead placement, strategically positioning electrodes on the arms and legs (RA, LA, RL, LL) to capture electrical activity accurately. Moreover, unlocks the secrets of chest lead placement, utilizing precise anatomical landmarks to guide the placement of electrodes (V1-V6) across the chest region. By immersing yourself in this practical activity, you will gain invaluable insights and hands-on experience vital for mastering the art of 12-lead ECG electrode placement.
Interpreting Compensatory Acid-Base Disturbances in Arterial Blood Gases
(2024) Ramirez, Minerva, Osteopathic Medical Student; Ju, Diane, Osteopathic Medical Student; Yates, Christopher, Osteopathic Medical Student; Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego F, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we present a systematic approach for a critical interpretation of compensatory acid-base disturbances in Arterial Blood Gases (ABGs). In this video, we will decipher compensatory acid-base disturbances in arterial blood gases, a skill that helps diagnose and manage critical conditions. We will follow a systematic approach, first identifying if there is acidemia or alkalemia by looking at the pH. Then, we will determine the primary culprit – is it a respiratory issue reflected in the pCO2, or a metabolic problem evident in the HCO3- level? The fun part comes next: analyzing the compensatory response. Did the body attempt to adjust the pH with the respiratory system (by altering CO2) or with the metabolic system (through HCO3- changes)? By following this step-by-step analysis, our peers will walk you through the intricacies of making a proper diagnosis of the primary disorder and also understand how the body is trying to maintain and/or regain balance. This knowledge is key to making informed treatment decisions for your patients. Join us on this educational journey as we unravel the mysteries of acid-base disturbances in ABGs. Join us on this educational voyage as we demystify the complexities of acid-base disturbances in ABGs.
Taking the ECG in the Clinical Medicine student laboratory-female version
(2024) Lesage, Kayla, Osteopathic Medical Student; Mackler, Matt, Osteopathic Medical Student; Brown, Sabrina, Osteopathic Medical Student; Stitle, Kyle, Osteopathic Medical Student; Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego F, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we present a peer-to-peer demonstration of the 6-lead and the 12-lead electrocardiogram (ECG) electrode placement in a female student. For a physician, mastering the skill of accurate electrode placement is crucial for obtaining high-quality ECGs. This peer-to-peer tutorial of a hands-on laboratory activity is designed to provide medical students with a practical understanding of the correct electrode placement for a standard 12-lead ECG in a female patient. It is important to master the skills while we provide a safe learning environment in the classroom for everyone. You will identify all the basic steps from skin preparation, for optimal electrode adhesion and signal transmission, to limb lead placement (positioning of the RA, LA, RL, and LL electrodes on the arms and legs), and chest lead placement (anatomical landmarks for placing electrodes V1-V6 on the chest) while ensuring that no unnecessary exposure of body parts occurs.
Taking the ECG in the Clinical Medicine student laboratory-male version
(2024) Stitle, Kyle, Osteopathic Medical Student; Lesage, Kayla, Osteopathic Medical Student; Brown, Sabrina, Osteopathic Medical Student; Mackler, Matt, Osteopathic Medical Student; Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we present a peer-to-peer demonstration of the 12-lead electrocardiogram (ECG) electrode placement in a male student. For a physician, mastering the skill of accurate electrode placement is crucial for obtaining high-quality ECGs. This peer-to-peer tutorial of a hands-on laboratory activity is designed to provide medical students with a practical understanding of the correct electrode placement for a standard 12-lead ECG in a male patient. You will identify all the basic steps from skin preparation, for optimal electrode adhesion and signal transmission, to limb lead placement (positioning of the RA, LA, RL, and LL electrodes on the arms and legs), and chest lead placement (anatomical landmarks for placing electrodes V1-V6 on the chest).
The diagnostic ECG: Anatomical-clinical correlation
(2024) Loomis, Mario, Associate Professor Clinical Anatomy; Loomis, Teresa, Nursing Student; Alvarez, Diego F, Professor Physiology and Pharmacology
In this episode of the Loomis-Alvarez Medical Video Series, we present an anatomical correlation of the most frequently used diagnostic test of heart function, the electrocardiogram (ECG). From the film industry to textbook publishers and apparel designers, ECG tracings are the hallmark of medical care. While patterns can be learned and even become readily recognizable, for many learning the ECG, correlating that oscillating line on an ICU monitor with the four-chambered heart once seen and held in the anatomy lab can be a formidable challenge. But, it is that correlation that can lead to a deeper, more nuanced understanding of the ECG. Heart disease being a leading cause of morbidity and mortality globally underscores the importance of this deeper understanding. The electrical rhythm captured by the ECG orchestrates the mechanical response of the heart muscle, propelling blood throughout the body to meet metabolic demands. When abnormalities in the heart's structure impact this vital electrical activity leading to mechanical irregularities in the pumping process, we can see that structural abnormalities are reflected in the ECG. Correlation of the heart’s physical structure with its physiologic function and electrical image captured from anterior, left, right, and inferior leads, is crucial for healthcare practitioners. To better understand normal electrical activity during the cardiac cycle we present the live capturing of an ECG. With the approximate location of a patient’s heart and conduction system drawn on their chest, leads are placed and the tracings are captured. Each lead’s tracing is correlated with illustrations of the heart’s chambers and conductive system within a skeletal model. Arrows are overlaid to show the primary direction of the electrical impulse towards, away from, or at right angles to the different leads. This basic understanding of ECG tracings can provide a solid foundation on which to build a more sophisticated and ongoing understanding of this profoundly useful diagnostic tool.
Breast Ultrasound
(2024) Loomis, Mario, Associate Professor Clinical Anatomy; Alvarez, Diego F, Professor Physiology and Pharmacology
Loomis-Alvarez Video Series correlating structure, function, and clinical applications to facilitate medical student understanding of complex anatomical and physiological concepts. In this episode, we present a breast ultrasound with live imaging correlated with mammography. Breast cancer is the most common malignancy in women and the 5th leading cause of cancer death worldwide. Therefore, screening and early detection are critical. While mammography is the primary screening modality, ultrasound can be complementary and, in some cases, preferable for younger women and those with dense breast tissue. It is particularly useful in distinguishing cysts from solid masses. Ultrasound is also useful as a guide to biopsying and excising breast tumors. Ultrasound is portable, avoids ionizing radiation with its cancer risk, and is easily performed in an office setting. By following the position of the probe on the breast, juxtaposed with the ultrasound image, students and residents can improve their understanding of the structures of the breast, chest wall, and axilla, and they relate to the physical examination and diagnostic imaging.

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