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What is the Chicago classification?

What is the Chicago classification?

The Chicago classification provides a standardized approach for analysis and categorization of abnormalities that has led to a significant increase in our knowledge regarding the diagnosis and management of motility disorders. Further refinement of the classification will be required.

What is normal IRP?

The integrated relaxation pressure (IRP) corresponds to the lowest mean 4 seconds of axial pressure from onset of UES relaxation. In this example the DCI is normal (between 450 to 8,000 mmHg·s·cm), the DL is normal (greater than 4.5s), and the IRP is normal (less than 15mmHg using the Sierra system).

What is Type 1 EGJ morphology?

This is a fundamental feature or EGJ morphology, likely pertinent to its functional integrity. With type I EGJ morphology, there is complete overlap of the CD and LES with no spatial separation evident on the Clouse plot (Figure 1) and no double peak on the associated spatial pressure variation plot.

What is distal contractile index?

The Distal Contractile Integral (DCI) is an index of contractile vigor in high-resolution esophageal pressure topography (EPT) calculated as the product of amplitude, duration, and span of the distal esophageal contraction.

What is the Eckardt score?

The Eckardt symptom score is the grading system most frequently used for the evaluation of symptoms, stages and efficacy of achalasia treatment. It attributes points (0 to 3 points) for four symptoms of the disease (dysphagia, regurgitation, chest pain and weight loss), ranging from 0 to 12.

What is IRP achalasia?

Background: Achalasia diagnosis requires elevated integrated relaxation pressure (IRP; manometric marker of lower esophageal sphincter [LES] relaxation). Yet, some patients exhibit clinical features of achalasia despite normal IRP and have LES dysfunction demonstrable by other means.

What is high resolution esophageal pressure topography?

High resolution manometry is composed of multiple, closely-spaced pressure sensors (usually 1 cm apart) that records pressure without significant gaps in data along the length of the entire esophagus.

What does Hill Grade IV mean?

Hill Grade IV: there is no fold, and the lumen of the esophagus is open, often allowing the squamous epithelium to be viewed from below. A hiatal hernia is always present.

What is eg Junction?

The esophagogastric junction is a muscle, not a mucosal, junction. The boundary of the esophagus is at the upper esophageal sphincter and lower esophageal sphincter (LES) at the oral and anal ends, respectively.

What is incomplete bolus clearance?

Impedance assessment of bolus transit Conversely, incomplete bolus clearance was defined as bolus entry without bolus clearance at one or more esophageal impedance-recording sites. Using these definitions, each swallow was characterized dichotomously as either complete or incomplete bolus clearance.

What is the Eckardt score describe its significance in the management of achalasia?

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