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    <loc>https://www.firstclassmed.com/articles/2023/murmurs-second-coming</loc>
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    <loc>https://www.firstclassmed.com/articles/2023/oha-sulphonylureas</loc>
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    <loc>https://www.firstclassmed.com/articles/2023/fissure-in-ano</loc>
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    <lastmod>2023-02-17</lastmod>
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      <image:title>Articles - Fissure-in-ano - A painful embarrassment - Make it stand out</image:title>
      <image:caption>Fig 4 - Frequency of fissure location</image:caption>
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      <image:title>Articles - Fissure-in-ano - A painful embarrassment - Make it stand out</image:title>
      <image:caption>Fig 1 - Anatomy of the Anal Canal</image:caption>
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      <image:title>Articles - Fissure-in-ano - A painful embarrassment - Make it stand out</image:title>
      <image:caption>Fig 3 - Difference in morphology of acute vs chronic fissure</image:caption>
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      <image:title>Articles - Fissure-in-ano - A painful embarrassment - Make it stand out</image:title>
      <image:caption>Fig 2 - Inspection showing a fissure-in-ano</image:caption>
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    <loc>https://www.firstclassmed.com/articles/2023/a-complete-anorectal-exam</loc>
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    <lastmod>2023-02-15</lastmod>
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      <image:title>Articles - The Complete Anorectal Examination - An Art Forgotten - Make it stand out</image:title>
      <image:caption>Fig 1: The prone jack-knife position on a proctoscopic table</image:caption>
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      <image:title>Articles - The Complete Anorectal Examination - An Art Forgotten - Make it stand out</image:title>
      <image:caption>Fig 3: Different types of Hirschmann anoscopes with obturator. The last one is a paediatric scope  Courtesy - The ASCRS textbook of Colon and Rectal Surgery, 3rd Ed</image:caption>
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      <image:title>Articles - The Complete Anorectal Examination - An Art Forgotten - Make it stand out</image:title>
      <image:caption>Fig 2: Sims’ position used during endoscopy</image:caption>
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    <loc>https://www.firstclassmed.com/articles/2023/pathophysiology-of-als</loc>
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    <lastmod>2023-02-15</lastmod>
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    <loc>https://www.firstclassmed.com/articles/2023/pathophysiology-acute-bacterial-meningitis</loc>
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    <lastmod>2023-02-15</lastmod>
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      <image:caption>Pathophysiology of acute bacterial meningitis from Harrison.</image:caption>
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    <loc>https://www.firstclassmed.com/articles/2023/hacekorganisms</loc>
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    <loc>https://www.firstclassmed.com/articles/2022/pterygium</loc>
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    <lastmod>2022-08-21</lastmod>
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      <image:caption>Image: Rajan Eye Care Hospital.</image:caption>
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    <loc>https://www.firstclassmed.com/articles/2021/basic-classification-of-seizures</loc>
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    <lastmod>2023-01-31</lastmod>
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      <image:caption>For more such images and content head over to The Crimson Dot Instagram page.</image:caption>
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      <image:caption>Reproduced from the website of the Epilepsy Foundation.</image:caption>
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    <loc>https://www.firstclassmed.com/articles/2021-hypertensive-retinopathy</loc>
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    <lastmod>2022-08-21</lastmod>
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      <image:caption>Image credit: Dr. Madhuvanthi Mohan For more such ophthalmology related images and content, visit Ophthalmobytes on Instagrm.</image:caption>
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      <image:caption>Image credit: Dr. Madhuvanthi Mohan For more such ophthalmology related images and content, visit Ophthalmobytes on Instagrm.</image:caption>
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  <url>
    <loc>https://www.firstclassmed.com/articles/2019/sinus-tachycardia</loc>
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    <priority>0.5</priority>
    <lastmod>2021-11-08</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1574230355619-565U8L2VGL849PN4BJE8/Screenshot+2019-11-19+at+5.50.51+PM.png</image:loc>
      <image:title>Articles - Sinus Tachycardia - Defining the Normal</image:title>
      <image:caption>How electrical currents are translated into waves on the ECG. Reproduced from Goldberger’s Clinical Electrocardiography, 9th Edition</image:caption>
    </image:image>
    <image:image>
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      <image:title>Articles - Sinus Tachycardia - Defining the Normal</image:title>
      <image:caption>The location of the SA node and the various deflections a sinus rhythm produces on an ECG in various leads. Reproduced from Harrisons Principles of Internal Medicine, 20th Edition</image:caption>
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  <url>
    <loc>https://www.firstclassmed.com/articles/2019/supraventricular-tachycardias</loc>
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    <lastmod>2019-11-20</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573741511958-U8G9TZ40TDGT2VZWPQAH/Screenshot%2B2019-11-14%2Bat%2B7.49.05%2BPM.jpg</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>Image showing origin of atrial tachycardias. Notice the changes in the ECG caused by new source of electrical impulses. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573740040924-KVJDHM2SJ9VB0AYNFHI1/Screenshot+2019-11-14+at+7.30.23+PM.png</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>These are the two ways in which supraventricular tachycardias are initiated. (A) shows a focal stimulus firing repeatedly. (B) shows the mechanism of a reentry pathway. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573740518940-GDPEXE8NEZHF7K4VZG1E/Screenshot%2B2019-11-14%2Bat%2B7.37.37%2BPM.jpg</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>ECG showing atrial flutter in lead II and III where as in lead I there is barely any signs of a pathology. The classic “saw tooth appearance” is seen in leads II and III. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573742010852-AZ73UK2Z3WC6VJGSPVUW/Screenshot%2B2019-11-14%2Bat%2B7.49.05%2BPM.jpg</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>Image showing a reentrant pathway through the ventricles. This is called an accessory pathway. The presence of such accessory pathways can lead to supra ventricular tachycardias as well. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573740902049-ACRK7DLIOD6AGTVTZ3PV/Screenshot+2019-11-14+at+7.44.46+PM.png</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>ECG showing multifocal atrial tachycardia. Note that the morphology of the P waves in the consecutive beats is not the same, suggesting that the beats are originating from different places. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573740726116-HAMEW7JGG7PZHM7IX95R/Screenshot+2019-11-14+at+7.41.52+PM.png</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>ECG showing Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573741233923-FVRVYB57XKY645NOR6QH/Screenshot%2B2019-11-14%2Bat%2B7.49.05%2BPM.jpg</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>Image showing the normal conduction pathway and the ECG deflections in produces. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1573741785934-ZPMIELH77EGEAUVK8WZG/Screenshot%2B2019-11-14%2Bat%2B7.49.05%2BPM.jpg</image:loc>
      <image:title>Articles - Supraventricular Tachycardias - The Narrow Waves of Chaos</image:title>
      <image:caption>Image showing the electrical impulse going haywire in the AV node and causing the impulse to be conducted back into the atrial. This phenomenon can cause supraventricular tachycardia. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firstclassmed.com/articles/2019/heart-block</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2019-11-14</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572952754678-IGT077EWG3Q07J52SIEW/Screenshot%2B2019-11-05%2Bat%2B4.48.08%2BPM.jpg</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
      <image:caption>Note that the PR interval is prolonged (&gt;o.2 sec) and that it is equal with each successive beat. Reproduced from Goldberger’s Clinical Electrocardiography, 9th Edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572952982551-T1XLP2URG9D4I3V6ZYT1/Screenshot+2019-11-05+at+4.52.49+PM.png</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
      <image:caption>Note how there is progressive increase in the PR intervals in the first three beats. In the fourth beat, there is a P, but no QRS complex, signifying the dropped beat. Reproduced from Goldberger’s Clinical Electrocardiography, 9th Edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572954343217-QSVH46OS3OET7EJ4OVBQ/Screenshot+2019-11-05+at+5.14.45+PM.png</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
      <image:caption>Causes of heart block or AV block Reproduced from Harrison’s Principles of Internal Medicine, 20th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572953138480-09VUC4YNJWQJ3FCTZF0E/Screenshot+2019-11-05+at+4.55.24+PM.png</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
      <image:caption>Note how all the PR intervals are of the same duration. Two beats are followed by a missed beat without any evidence. Reproduced from Goldberger’s Clinical Electrocardiography, 9th Edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572956221361-46ROFY1XKOH2RH7NAAA8/h101+%281%29.jpg</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572955085349-1ABH2L3V019FBQWLMJMF/image-asset.jpeg</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572954084795-3K34HY935WOMVSM8D588/Screenshot+2019-11-05+at+5.00.08+PM.png</image:loc>
      <image:title>Articles - Heart Block - An Electrical Travel Delay</image:title>
    </image:image>
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  <url>
    <loc>https://www.firstclassmed.com/articles/2019/sa-node-disorders</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2019-11-05</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572022641002-0HW88N6SSPKM31N2SSYJ/Screenshot+2019-10-25+at+10.22.34+PM.png</image:loc>
      <image:title>Articles - Disorders of the Sinoatrial Node - When a Hero Falls</image:title>
      <image:caption>Location of pacemaker tissue. Reproduced from Harrison’s Principles of Internal Medicine 20th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572024556108-NXWDNC28M84BAES55QHV/Screenshot%2B2019-10-25%2Bat%2B10.50.23%2BPM.jpg</image:loc>
      <image:title>Articles - Disorders of the Sinoatrial Node - When a Hero Falls</image:title>
      <image:caption>ECG showing 2:1 sinus exit block. Notice that the heart rate is normal and inbetween that there is a dropped P wave signifying a missed beat. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/5908027c20099e374ad3d70e/1572024985255-KKPBAFO9PWRVXW9QTWOR/Screenshot%2B2019-10-25%2Bat%2B10.50.11%2BPM.jpg</image:loc>
      <image:title>Articles - Disorders of the Sinoatrial Node - When a Hero Falls</image:title>
      <image:caption>This ECG shows the tachycardia bradycardia syndrome in which tachycardia (in this case atrial fibrillation) leads to bradycardia due to overdrive suppression of the SA node. Reproduced from Goldberger’s Clinical Electrocardiography, 9th edition.</image:caption>
    </image:image>
    <image:image>
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      <image:title>Articles - Disorders of the Sinoatrial Node - When a Hero Falls</image:title>
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