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EMR and ESD: Indications, techniques and results
Mamoon Ur Rashid1, Mohammad Alomari1, Sadaf Afraz1
1Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic Florida, Weston, FL, 33331, USA.
Abstract:
Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are two well-known endoscopic resection procedures used for advance gastrointestinal lesions. As compared to standard polypectomy techniques, EMR and ESD provide wider and deeper resection margins and allow en bloc removal of lesions for more detailed pathology with curative intent for early neoplastic gastrointestinal lesions. Both procedures have their advantages and disadvantages which will be discussed in detail in this review article. Recently there have been advancements in the techniques of EMR and ESD with addition in new equipment. We will also discuss current guidelines recommending use of EMR and/or ESD in various clinical scenarios.
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An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...

