Related Experiment Video

Updated: Nov 11, 2025

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
05:56

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis

Published on: August 29, 2025

282

Comparison of non-invasive physiological assessment tools between simple and perforated appendicitis in children

Niti Shahi1,2, Ryan Phillips3,4, Maxene Meier5

  • 1Division of Pediatric Surgery, Children's Hospital Colorado, 13123 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO, 80045, USA. niti.shahi@childrenscolorado.org.

Pediatric Surgery International
|March 30, 2021
PubMed

Insights

The Compensatory Reserve Index (CRI) non-invasively assesses pediatric appendicitis severity. Higher CRI values indicate simple appendicitis, aiding early management decisions in children.

Area of Science:

  • Pediatric Emergency Medicine
  • Physiologic Monitoring
  • Surgical Outcomes

Background:

  • Acute appendicitis is common in children, with perforation significantly increasing morbidity.
  • Differentiating simple from perforated appendicitis early is crucial for timely intervention.
  • Non-invasive measures of physiologic reserve are needed to guide management.

Purpose of the Study:

  • To evaluate the utility of the Compensatory Reserve Index (CRI) and Shock Index Pediatric Age-Adjusted (SIPA) in managing pediatric acute appendicitis.
  • To determine if these non-invasive measures can differentiate simple from perforated appendicitis.

Main Methods:

  • Prospective enrollment of children (2-17 years) with suspected appendicitis.
  • Continuous monitoring using a CipherOx CRI™ M1 pulse oximeter.
  • Calculation of CRI (0-1 scale) and SIPA (age-adjusted), with regression analysis to predict simple vs. perforated appendicitis.

Main Results:

  • 48% of patients had perforated appendicitis.
  • Univariate analysis showed higher median CRI and lower ED SIPA in simple appendicitis.
  • Multivariable analysis identified CRI as the significant predictor of appendicitis severity.

Conclusions:

  • CRI is a valuable non-invasive tool for assessing physiologic reserve in children with appendicitis.
  • CRI can accurately differentiate between simple and perforated appendicitis.
  • CRI may guide early management strategies for pediatric acute appendicitis.
Abstract

Keywords:
AppendicitisCRIPerforated appendicitisSIPAShock

More Related Videos

Author Spotlight: Unraveling the Impact of Mechanical Ventilation on Diaphragm Function and Patient Outcomes05:51

Author Spotlight: Unraveling the Impact of Mechanical Ventilation on Diaphragm Function and Patient Outcomes

Published on: November 3, 2023

7.4K
Diaphragmatic Ultrasound in Adults: Image Acquisition and Interpretation05:51

Diaphragmatic Ultrasound in Adults: Image Acquisition and Interpretation

Published on: January 31, 2025

1.0K

Related Concept Videos

Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
1.0K
Assessment of the Abdomen II: Percussion01:18

Assessment of the Abdomen II: Percussion

Percussion is a fundamental technique used to assess the liver, spleen, and abdominal organs by tapping the abdomen and interpreting the resulting sounds. This method helps identify fluid, distention, and masses through variations in sound, such as the high-pitched tympany of air-filled areas and the dullness of solid masses. Understanding how to percuss these organs provides valuable information for healthcare professionals in diagnosing conditions early.
Percussion
Percussion is an essential...
1.1K
Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
232
Assessment of the Abdomen I: Inspection and Auscultation01:25

Assessment of the Abdomen I: Inspection and Auscultation

Introduction
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection....
1.1K
Assessment of the Abdomen III: Palpation01:23

Assessment of the Abdomen III: Palpation

Palpation is a crucial tactile examination method for assessing abdominal organs and detecting conditions like tenderness, distention, masses, or fluid. It involves both light and deep palpation techniques, each serving specific diagnostic purposes. Light palpation helps identify tenderness and other surface-level indicators, while deep palpation locates and assess abdominal masses and organ boundaries. A skilled professional can gather valuable insights through palpation, including evaluating...
2.1K
Physical Assessment of the Respiratory Tract III: Percussion01:29

Physical Assessment of the Respiratory Tract III: Percussion

The respiratory system, fundamental to life, consists of complex structures responsible for gas exchange. The percussion assessment is critical to understanding this system's health and functionality. This non-invasive assessment technique allows healthcare providers to evaluate the density or aeration of the lungs, thereby identifying potential abnormalities.
Percussion in Respiratory Assessment
Percussion evaluates underlying tissue composition with audible and tactile vibrations,...
1.8K