Description

Valent et al described a grading scale for gastrointestinal symptoms associated with mastocytosis. This can help to monitor a patient over time and to assess the response to therapy. The authors are from multiple universities in North America and Europe.


 

Gastrointestinal symptoms:

(1) abdominal cramping

(2) diarrhea

(3) peptic ulceration (gastric, duodenal) often with GI bleeding

Intensity of the Symptom

Grade

none (absent)

0

mild, infrequent, requires no therapy

1

mild to moderate, frequent, controlled with therapy

2

severe, frequent, difficult to control

3

severe, requiring hospitalization

4

 

where:

• Peptic ulceration is referred to as ulcus duodeni (duodenal ulcer) and ulcus ventriculi (gastric ulcer).

 

A Grade 4 symptom is referred to as severe adverse event (SAE).

 

Frequency of the SAE

Designation

less than once a year

A

at least once a year but less than once a month

B

once a month or more often

C

 


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