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The RIPASA score for the diagnosis of acute appendicitis: A comparison with the modified Alvarado score.

The RIPASA score for the diagnosis of acute appendicitis: A comparison with the modified Alvarado score.
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Díaz-Barrientos CZ, Aquino-González A, Heredia-Montaño M, Navarro-Tovar F, Pineda-Espinosa MA, Espinosa de Santillana IA,


Díaz-Barrientos CZ, Aquino-González A, Heredia-Montaño M, Navarro-Tovar F, Pineda-Espinosa MA, Espinosa de Santillana IA, (click to view)

Díaz-Barrientos CZ, Aquino-González A, Heredia-Montaño M, Navarro-Tovar F, Pineda-Espinosa MA, Espinosa de Santillana IA,

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Revista de gastroenterologia de Mexico 2018 02 06() pii S0375-0906(18)30027-2
Abstract
INTRODUCTION AND OBJECTIVES
Acute appendicitis is the first cause of surgical emergencies. It is still a difficult diagnosis to make, especially in young persons, the elderly, and in reproductive-age women, in whom a series of inflammatory conditions can have signs and symptoms similar to those of acute appendicitis. Different scoring systems have been created to increase diagnostic accuracy, and they are inexpensive, noninvasive, and easy to use and reproduce. The modified Alvarado score is probably the most widely used and accepted in emergency services worldwide. On the other hand, the RIPASA score was formulated in 2010 and has greater sensitivity and specificity. There are very few studies conducted in Mexico that compare the different scoring systems for appendicitis. The aim of our article was to compare the modified Alvarado score and the RIPASA score in the diagnosis of patients with abdominal pain and suspected acute appendicitis.

MATERIAL AND METHODS
An observational, analytic, and prolective study was conducted within the time frame of July 2002 and February 2014 at the Hospital Universitario de Puebla. The questionnaires used for the evaluation process were applied to the patients suspected of having appendicitis.

RESULTS
The RIPASA score with 8.5 as the optimal cutoff value: ROC curve (area .595), sensitivity (93.3%), specificity (8.3%), PPV (91.8%), NPV (10.1%). Modified Alvarado score with 6 as the optimal cutoff value: ROC curve (area .719), sensitivity (75%), specificity (41.6%), PPV (93.7%), NPV (12.5%).

CONCLUSIONS
The RIPASA score showed no advantages over the modified Alvarado score when applied to patients presenting with suspected acute appendicitis.

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