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Apendicitis aguda

Last reviewed: 21 Jul 2025
Last updated: 17 Apr 2025

Summary

Definition

History and exam

Key diagnostic factors

  • dolor abdominal
  • anorexia
  • náuseas y vómitos
  • sensibilidad a la palpación en el cuadrante inferior derecho
  • abdomen rígido y tenso
  • hipotensión y taquicardia
  • masa palpable
Full details

Other diagnostic factors

  • edad de presentación
  • fiebre
  • cara sonrojada y hedor
  • disminución de borborigmos
  • taquicardia
  • deposición diarreica
  • estreñimiento
  • signo de Rovsing
  • signo del psoas
  • signo del obturador
Full details

Risk factors

  • diferencias en el microbioma apendicular
  • tabaquismo
Full details

Diagnostic tests

1st tests to order

  • hemograma completo (HC)
  • proteína C-reactiva
  • exploración por tomografía computarizada (TC) abdominal y pélvica
Full details

Tests to consider

  • ultrasonido de abdomen
  • análisis de orina
  • prueba de embarazo en orina
  • imagen de resonancia magnética (IRM) abdominal y pélvica en el embarazo
Full details

Emerging tests

  • ratio de neutrófilos a linfocitos
  • sodio sérico
  • pentraxina-3
  • amiloide A sérico
  • índices plaquetarios

Treatment algorithm

ACUTE

apendicitis aguda sin complicaciones

malestar con perforación o absceso

Contributors

Authors

Peter Szasz, MD, PhD, FRCSC

Assistant Professor

Department of Surgery

Queen's University

Kingston

Ontario

Canada

Disclosures

PS declares that he has no competing interests.

Acknowledgements

Dr Peter Szasz would like to gratefully acknowledge Professor Ali Tavakkoli, Professor Dileep N. Lobo and Dr Nasim Ahmed, previous contributors to this topic.

Disclosures

AT is a consultant for Medtronic. DNL is the author of an article cited in the topic. NA declares that he has no competing interests.

Peer reviewers

John M. Davis, MD

General Surgery

Jersey Shore Medical Center

Neptune

NJ

Disclosures

JMD declares that he has no competing interests.

Elisabeth Adderson, MD

Associate Member

St. Jude Children's Research Hospital

Associate Professor of Paediatrics

University of Tennessee Health Sciences Center

Memphis

TN

Disclosures

EA declares that she has no competing interests.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

Di Saverio S, Podda M, De Simone B, et al. Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines. World J Emerg Surg. 2020 Apr 15;15(1):27.Full text  Abstract

American College of Radiology. ACR appropriateness criteria: right lower quadrant pain - suspected appendicitis. 2022 [internet publication].Full text

Sartelli M, Chichom-Mefire A, Labricciosa FM, et al. The management of intra-abdominal infections from a global perspective: 2017 WSES guidelines for management of intra-abdominal infections. World J Emerg Surg. 2017 Jul 10;12:29.Full text  Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.
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