scholarly journals Pregnant Patients Suspected of Having Acute Appendicitis: Effect of MR Imaging on Negative Laparotomy Rate and Appendiceal Perforation Rate

Radiology ◽  
2009 ◽  
Vol 250 (3) ◽  
pp. 749-757 ◽  
Author(s):  
Ivan Pedrosa ◽  
Michelle Lafornara ◽  
Pari V. Pandharipande ◽  
Jeffrey D. Goldsmith ◽  
Neil M. Rofsky
Keyword(s):  
Mr Imaging ◽  
Acute Appendicitis ◽  
Perforation Rate ◽  
Negative Laparotomy ◽  
Appendiceal Perforation

scholarly journals KIMS modification of Alvarado’s score for acute appendicitis

2017 ◽  
Vol 4 (8) ◽  
pp. 2756
Author(s):  
Daivasikamani Premkumar
Keyword(s):  
Emergency Department ◽  
Acute Appendicitis ◽  
Scoring System ◽  
False Negative ◽  
Atypical Presentation ◽  
Computer Assistance ◽  
Negative Laparotomy ◽  
Improve Accuracy ◽  
Negative Appendicectomy ◽  
Appendiceal Perforation

Background: Abdominal pain is one of the most frequent presentations to the emergency department (ED). Acute appendicitis is by no means an easy diagnosis to make and can baffle the best. Problems related to the diagnosis of appendicitis are evidenced by the significant negative laparotomy rate. A scoring system described by Alvarado was designed to reduce the negative appendicectomy rate without increasing morbidity and mortality. Alvarado’s score does not include ultrasonogram which is most commonly done investigation before any abdominal surgery.Methods: The study included the ultrasonography and modified the scoring system and retrospectively we analyzed 153 patients who were admitted as acute appendicitis. When interpreted considering the clinical examination, sonography and modified scoring system and it significantly reduced the rate of false-negative appendectomies. The use of diagnostic imaging tests such as CT scan or ultrasonography should be selective in those with atypical presentation or findings. Laparoscopy, barium enema, ultrasonography and computer assistance have all been shown to improve accuracy, but no one method is of proven superiority.Results: By using KIMS modification of Alvarado’s score it was found that unnecessary appendectomy can be avoided in 11 out of 132 patients.Conclusions: Such diagnostic aids or intensive in-hospital observation must be used to reduce the 15-30 per cent negative laparotomy rate when acute appendicitis is suspected, without increasing the incidence of appendiceal perforation.

scholarly journals Accuracy of Unenhanced MR Imaging in the Detection of Acute Appendicitis: Single-Institution Clinical Performance Review

Radiology ◽  
2016 ◽  
Vol 279 (2) ◽  
pp. 451-460 ◽  
Author(s):  
Iva Petkovska ◽  
Diego R. Martin ◽  
Matthew F. Covington ◽  
Shannon Urbina ◽  
Eugene Duke ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Acute Appendicitis ◽  
Clinical Performance ◽  
Single Institution ◽  
Performance Review

scholarly journals The Role of Radiological Imaging in the Diagnosis of Acute Appendicitis

2002 ◽  
Vol 16 (7) ◽  
pp. 451-463 ◽  
Author(s):  
E Albiston
Keyword(s):  
Acute Appendicitis ◽  
X Rays ◽  
Resonance Imaging ◽  
Perforation Rate ◽  
Barium Enema Examination ◽  
Radiological Criteria ◽  
High Degree ◽  
Clinical Algorithms ◽  
Methodological Difficulties

Several strategies have been employed to improve the accuracy of the diagnosis of appendicitis and to reduce the associated perforation rate. Because clinical algorithms have been disappointing, many physicians resort to radiological modalities. Plain abdominal x-rays are nonspecific, barium enema examination has relatively low accuracy, scintigraphy scans require considerable time and are difficult to interpret, and magnetic resonance imaging is relatively unstudied. The most promising modalities are graded compression sonography and computed tomography. In expert hands, these techniques can achieve a high degree of accuracy. Nevertheless, most published studies have been marred by methodological difficulties. Moreover, ultrasound is more useful in detecting than in ruling out appendicitis. The radiological criteria for acute appendicitis, the accuracy of various imaging modalities and the limitations of the available research are described.

scholarly journals MR imaging of the normal appendix and acute appendicitis

2005 ◽  
Vol 21 (2) ◽  
pp. 156-165 ◽  
Author(s):  
Norihisa Nitta ◽  
Masashi Takahashi ◽  
Akira Furukawa ◽  
Kiyoshi Murata ◽  
Masayuki Mori ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Acute Appendicitis ◽  
Normal Appendix

Integrating MR Imaging Into the Clinical Workup of Pregnant Patients Suspected of Having Appendicitis Is Associated With a Lower Negative Laparotomy Rate

2013 ◽  
Vol 68 (9) ◽  
pp. 617-618 ◽  
Author(s):  
Elliot J. Rapp ◽  
Farah Naim ◽  
Khadijeh Kadivar ◽  
Amir Davarpanah ◽  
Daniel Cornfeld
Keyword(s):  
Mr Imaging ◽  
Negative Laparotomy

scholarly journals Acute appendicitis: MR imaging and sonographic correlation.

1997 ◽  
Vol 168 (3) ◽  
pp. 669-674 ◽  
Author(s):  
L Incesu ◽  
A Coskun ◽  
M B Selcuk ◽  
H Akan ◽  
S Sozubir ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Acute Appendicitis

scholarly journals Negative Appendectomy Rate in Urban Referral Hospitals in Tanzania: A Cross-sectional Analysis of Associated Factors

2021 ◽  
Vol 18 (2) ◽  
pp. 109-114
Author(s):  
Masawa Klint Nyamuryekung’E ◽  
Ali Athar ◽  
Miten Ramesh Patel ◽  
Aidan Njau ◽  
Omar Sherman ◽  
...  
Keyword(s):  
Acute Appendicitis ◽  
Associated Factors ◽  
Lifetime Risk ◽  
Histological Evaluation ◽  
Negative Appendectomy ◽  
Perforation Rate ◽  
Alvarado Score ◽  
Suspected Appendicitis ◽  
Referral Hospitals ◽  
Negative Appendectomy Rate

Background: Acute appendicitis (AA) has a lifetime risk of 8.3% with a consequent 23% lifetime risk of emergency appendectomy. In atypical presentation, making a clinical diagnosis is difficult, leading to a high perforation rate (PR) or misdiagnoses and high negativeappendectomy rates (NAR). This study aimed to establish NAR and explore the associated factors and possible attainable solutions to reduce it in urban referral hospitals in Tanzania. Methods: This was a crosssectional study with 91 consecutive patients, aged 10 years and older undergoing appendectomy for  suspected AA with histological evaluation of specimens. The study was powered to detect the NAR at 95% confidence level and 80% power. Results: The histological NAR was 38.5% and the perforation rate was 25.3%. The Alvarado score (AS) was rarely applied (6%), despite ademonstrated ability in this study to decrease the NAR by half. Females were four times more likely to undergo negative appendectomy than males. Conclusion: The NAR is clinically significant as about two out of every five patients undergoing emergency appendectomy for suspected AA do not require the procedure. The AS is underutilized despite a demonstrated ability to decrease the NAR. We recommend that the AS be incorporated in the management of patients with suspected appendicitis. Keywords: Negative appendectomy rate, SubSaharan Africa, Alvarado score, Appendectomy, Suspected acute appendicitis

scholarly journals External validation of Tzanakis scoring system in acute appendicitis in a rural hospital

2019 ◽  
Vol 7 (5) ◽  
pp. 1536
Author(s):  
Mohd Riyaz Lattoo ◽  
Shabir Ahmad Mir ◽  
Nayeemul Hassan Ganie ◽  
Shabir Hussain Rather
Keyword(s):  
Retrospective Study ◽  
Acute Appendicitis ◽  
Predictive Value ◽  
Scoring System ◽  
Histopathological Examination ◽  
External Validation ◽  
Scoring Systems ◽  
Common Cause ◽  
Negative Laparotomy ◽  
Negative Appendicectomy

Background: Acute appendicitis is one of the most common cause of acute abdomen surgery. Several scoring systems have been adopted by physicians to aid in the diagnosis and decrease the negative appendicectomy rate. Tzanakis scoring system is one such score. Objective of present study was the validation of this scoring system in our population and compare its accuracy with histopathological examination (HPE).Methods: A retrospective study was carried out at the Department of Surgery at Mohammad Afzal Beigh Memorial Hospital Anantnag India. Tzanakis score was calculated in 288 patients who underwent appendicectomy from September 2016-2018 and HPE results were analysed.Results: 276 patients were eligible for the study. The sensitivity and specificity of Tzanakis score in diagnosing appendicitis was 90.66% and 73.68% respectively. The overall diagnostic accuracy was 86.23% with positive predictive value of 97.89% and negative predictive value of 36.84%.Conclusions: Tzanakis scoring system is an accurate modality in establishing the diagnosis of acute appendicitis and preventing a negative laparotomy.

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