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Table 1 Patients who had a negative laparotomy (NL)

From: Negative exploration for pyloric stenosis – Is it preventable?

Patient no

Test feed

UGI

Ultrasound

Biochemistry

   

Report

Canal length

Muscle thickness

pH

BE

1

Negative

-

Positive

20

4

7.38

-0.1

2

Positive

-

Positive

17

4

7.42

-0.4

3

Not done

-

Positive

18

2.1

7.46

4.5

4

Negative

positive

Negative

10

2.2

7.44

5.2

  1. UGI – Upper GI contrast study.
  2. Results which do not reach diagnostic criteria in bold italics.
  3. US done in a peripheral hospital