Evaluation of the diagnostic yield of ultrasound in the management of appendicitis: An experience in a tertiary hospital in South-Eastern Nigeria

IF 0.1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
H. Chiegwu, D. Ugwuanyi, B. Udoh, Francis Chianumba
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引用次数: 0

Abstract

Introduction: In most complaints of right lower abdominal pains appendicitis is suspected. Appendicitis often creates the most common abdominal surgical emergency. Ultrasound and computed tomography are often the imaging modalities used to confirm the clinical diagnosis of appendicitis. The aim of this study was to evaluate the accuracy of ultrasound in the diagnosis of appendicitis in a tertiary hospital in South Eastern, Nigeria. Materials and Methods: A retrospective study design was adopted to study 152 records of patients aged 1–65 years who had ultrasound scans for clinical suspicion of appendicitis at a tertiary hospital in Anambra State, South Eastern Nigeria from 2016 to 2018. Patients' age, gender, and provisional diagnosis were obtained from the patients' request forms. Ultrasound results were obtained from the radiology department and the histology reports from the histology unit of the hospital. The Statistical Package for the Social Sciences, SPSS, version 22.0. was used for data analysis. Results: Of the 152 cases, ultrasound was positive in 115, while histology confirmed 136 positives. Ultrasound, therefore, had a sensitivity, specificity, and accuracy of 84.56%, 100%, and 86.18%, respectively. The positive predictive value and negative predictive values were 100% and 43.24%, respectively. The study showed a higher incidence of appendicitis among females (n = 84) than males (n = 52), (ratio 1:1.6). Age groups 10–19 and 20–29 years were the most affected. Accuracy was 91.94% (in males) and 82.22% (in females). The most common ultrasound features include enlarged appendix (>9 mm, 100%), rebound tenderness to probe (92%), and fluid-filled appendix (88%). Conclusions: Ultrasound has high sensitivity, specificity, and accuracy for the diagnosis of appendicitis.
评价超声在阑尾炎治疗中的诊断率:尼日利亚东南部一家三级医院的经验
在大多数右下腹痛的主诉中,怀疑是阑尾炎。阑尾炎是最常见的腹部外科急症。超声和计算机断层扫描是阑尾炎临床诊断常用的影像学手段。本研究的目的是评估超声在诊断阑尾炎的准确性在一家三级医院在东南部,尼日利亚。材料与方法:采用回顾性研究设计,对2016 - 2018年尼日利亚东南部阿南布拉州某三级医院因临床怀疑阑尾炎而行超声扫描的152例1-65岁患者进行研究。患者的年龄、性别和临时诊断从患者的申请表中获得。超声结果来自放射科,组织学报告来自医院的组织学单元。社会科学统计软件包,SPSS, 22.0版。用于数据分析。结果:152例中超声阳性115例,组织学阳性136例。超声诊断的敏感性为84.56%,特异性为100%,准确性为86.18%。阳性预测值为100%,阴性预测值为43.24%。研究显示,女性(84例)阑尾炎的发病率高于男性(52例)(比例为1:6 .6)。10-19岁和20-29岁年龄组受影响最大。准确率为91.94%(男性)和82.22%(女性)。最常见的超声特征包括阑尾扩大(bbb9mm, 100%),探头反跳压痛(92%)和阑尾充满液体(88%)。结论:超声诊断阑尾炎具有较高的敏感性、特异性和准确性。
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来源期刊
West African Journal of Radiology
West African Journal of Radiology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
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