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Zorluk: Çok zorGastroenterology and Hepatology

Match each clinical presentation and high-resolution manometry (HRM) profile with the most likely esophageal motility disorder diagnosis based on the Chicago Classification.

  • A 35-year-old with dysphagia. HRM shows an elevated integrated relaxation pressure (IRP) of 2222 mm Hg and 100%100\% absent peristalsis with no pan-esophageal pressurization.Type I (Classic) Achalasia
  • A 45-year-old with chest pain. HRM shows an elevated IRP of 1818 mm Hg with premature, spastic contractions in 35%35\% of swallows.Type III (Spastic) Achalasia
  • A 55-year-old with Raynaud phenomenon. HRM shows a normal IRP of 1010 mm Hg and 100%100\% failed peristalsis in the distal two-thirds of the esophagus.Scleroderma Esophagus
  • A 60-year-old with intermittent dysphagia. HRM shows a normal IRP and premature contractions with reduced distal latency in 30%30\% of swallows.Distal Esophageal Spasm
  • A 50-year-old with severe non-cardiac chest pain. HRM shows a normal IRP and hypercontractile swallows with a distal contractile integral (DCI) >8000> 8000 mm Hg-s-cm.Hypercontractile (Jackhammer) Esophagus

Cevap

The correct matches strictly pair the manometric pattern to its defining diagnosis: an elevated IRP without pressurization matches Type I Achalasia; an elevated IRP with spastic contractions matches Type III Achalasia; a normal IRP with absent distal peristalsis matches Scleroderma Esophagus; a normal IRP with reduced distal latency matches Distal Esophageal Spasm; and a normal IRP with DCI >8000> 8000 mm Hg-s-cm matches Hypercontractile (Jackhammer) Esophagus.
The Chicago Classification systematically categorizes motility disorders by first evaluating the adequacy of lower esophageal sphincter relaxation (using IRP) and subsequently by the contractility of the esophageal body. Elevated IRP defines the achalasia spectrum, whereas a normal IRP with aberrant contractility defines spasm, hypercontractility, or absent contractility.

Adım Adım Çözüm

1
Evaluate the Integrated Relaxation Pressure (IRP) for each patient.
Patients with elevated IRP (>15> 15 mm Hg) fall into the achalasia spectrum, whereas patients with normal IRP have other motility or systemic disorders.
IRP is the primary metric to differentiate esophagogastric junction outflow obstruction from primary esophageal body motility disorders.
2
Analyze the peristaltic patterns in patients with elevated IRP.
100%100\% absent peristalsis without pressurization defines Type I Achalasia, while the presence of premature or spastic contractions defines Type III Achalasia.
Differentiating achalasia subtypes is necessary as they guide specific therapeutic decisions.
3
Assess the Distal Contractile Integral (DCI) and distal latency in patients with normal IRP.
A DCI >8000> 8000 mm Hg-s-cm defines Jackhammer esophagus, reduced distal latency defines Distal Esophageal Spasm, and 100%100\% failed peristalsis with systemic symptoms defines Scleroderma esophagus.
These metrics specifically isolate the neuromuscular defect in the esophageal body when outflow obstruction is absent.

Anahtar Kavram

High-Resolution Manometry (HRM) diagnosis of esophageal motility disorders
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Konular

Gastroenterology and Hepatology

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