M Andersson1,2, B Kolodziej3, R E Andersson1,2. 1. Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, Linköping, Sweden. 2. Department of Surgery, Ryhov County Hospital, County Council of Jönköping, Jönköping, Sweden. 3. Department Pathology, Ryhov County Hospital, County Council of Jönköping, Jönköping, Sweden.
Abstract
BACKGROUND: The role of imaging in the diagnosis of appendicitis is controversial. This prospective interventional study and nested randomized trial analysed the impact of implementing a risk stratification algorithm based on the Appendicitis Inflammatory Response (AIR) score, and compared routine imaging with selective imaging after clinical reassessment. METHOD:Patients presenting with suspicion of appendicitis between September 2009 and January 2012 from age 10 years were included at 21 emergency surgical centres and from age 5 years at three university paediatric centres. Registration of clinical characteristics, treatments and outcomes started during the baseline period. The AIR score-based algorithm was implemented during the intervention period. Intermediate-risk patients were randomized to routine imaging or selective imaging after clinical reassessment. RESULTS: The baseline period included 1152 patients, and the intervention period 2639, of whom 1068 intermediate-risk patients were randomized. In low-risk patients, use of the AIR score-based algorithm resulted in less imaging (19·2 versus 34·5 per cent; P < 0·001), fewer admissions (29·5 versus 42·8 per cent; P < 0·001), and fewer negative explorations (1·6 versus 3·2 per cent; P = 0·030) and operations for non-perforated appendicitis (6·8 versus 9·7 per cent; P = 0·034). Intermediate-risk patients randomized to the imaging and observation groups had the same proportion of negative appendicectomies (6·4 versus 6·7 per cent respectively; P = 0·884), number of admissions, number of perforations and length of hospital stay, but routine imaging was associated with an increased proportion of patients treated for appendicitis (53·4 versus 46·3 per cent; P = 0·020). CONCLUSION: AIR score-based risk classification can safely reduce the use of diagnostic imaging and hospital admissions in patients with suspicion of appendicitis. Registration number: NCT00971438 ( http://www.clinicaltrials.gov).
RCT Entities:
BACKGROUND: The role of imaging in the diagnosis of appendicitis is controversial. This prospective interventional study and nested randomized trial analysed the impact of implementing a risk stratification algorithm based on the Appendicitis Inflammatory Response (AIR) score, and compared routine imaging with selective imaging after clinical reassessment. METHOD:Patients presenting with suspicion of appendicitis between September 2009 and January 2012 from age 10 years were included at 21 emergency surgical centres and from age 5 years at three university paediatric centres. Registration of clinical characteristics, treatments and outcomes started during the baseline period. The AIR score-based algorithm was implemented during the intervention period. Intermediate-risk patients were randomized to routine imaging or selective imaging after clinical reassessment. RESULTS: The baseline period included 1152 patients, and the intervention period 2639, of whom 1068 intermediate-risk patients were randomized. In low-risk patients, use of the AIR score-based algorithm resulted in less imaging (19·2 versus 34·5 per cent; P < 0·001), fewer admissions (29·5 versus 42·8 per cent; P < 0·001), and fewer negative explorations (1·6 versus 3·2 per cent; P = 0·030) and operations for non-perforated appendicitis (6·8 versus 9·7 per cent; P = 0·034). Intermediate-risk patients randomized to the imaging and observation groups had the same proportion of negative appendicectomies (6·4 versus 6·7 per cent respectively; P = 0·884), number of admissions, number of perforations and length of hospital stay, but routine imaging was associated with an increased proportion of patients treated for appendicitis (53·4 versus 46·3 per cent; P = 0·020). CONCLUSION: AIR score-based risk classification can safely reduce the use of diagnostic imaging and hospital admissions in patients with suspicion of appendicitis. Registration number: NCT00971438 ( http://www.clinicaltrials.gov).
Authors: Tyler J Loftus; Scott C Brakenridge; Chasen A Croft; R Stephen Smith; Philip A Efron; Frederick A Moore; Alicia M Mohr; Janeen R Jordan Journal: J Surg Res Date: 2017-11-13 Impact factor: 2.192
Authors: Salomone Di Saverio; Mauro Podda; Belinda De Simone; Marco Ceresoli; Goran Augustin; Alice Gori; Marja Boermeester; Massimo Sartelli; Federico Coccolini; Antonio Tarasconi; Nicola De' Angelis; Dieter G Weber; Matti Tolonen; Arianna Birindelli; Walter Biffl; Ernest E Moore; Michael Kelly; Kjetil Soreide; Jeffry Kashuk; Richard Ten Broek; Carlos Augusto Gomes; Michael Sugrue; Richard Justin Davies; Dimitrios Damaskos; Ari Leppäniemi; Andrew Kirkpatrick; Andrew B Peitzman; Gustavo P Fraga; Ronald V Maier; Raul Coimbra; Massimo Chiarugi; Gabriele Sganga; Adolfo Pisanu; Gian Luigi De' Angelis; Edward Tan; Harry Van Goor; Francesco Pata; Isidoro Di Carlo; Osvaldo Chiara; Andrey Litvin; Fabio C Campanile; Boris Sakakushev; Gia Tomadze; Zaza Demetrashvili; Rifat Latifi; Fakri Abu-Zidan; Oreste Romeo; Helmut Segovia-Lohse; Gianluca Baiocchi; David Costa; Sandro Rizoli; Zsolt J Balogh; Cino Bendinelli; Thomas Scalea; Rao Ivatury; George Velmahos; Roland Andersson; Yoram Kluger; Luca Ansaloni; Fausto Catena Journal: World J Emerg Surg Date: 2020-04-15 Impact factor: 5.469
Authors: Massimo Sartelli; Federico Coccolini; Yoram Kluger; Ervis Agastra; Fikri M Abu-Zidan; Ashraf El Sayed Abbas; Luca Ansaloni; Abdulrashid Kayode Adesunkanmi; Boyko Atanasov; Goran Augustin; Miklosh Bala; Oussama Baraket; Suman Baral; Walter L Biffl; Marja A Boermeester; Marco Ceresoli; Elisabetta Cerutti; Osvaldo Chiara; Enrico Cicuttin; Massimo Chiarugi; Raul Coimbra; Elif Colak; Daniela Corsi; Francesco Cortese; Yunfeng Cui; Dimitris Damaskos; Nicola De' Angelis; Samir Delibegovic; Zaza Demetrashvili; Belinda De Simone; Stijn W de Jonge; Sameer Dhingra; Stefano Di Bella; Francesco Di Marzo; Salomone Di Saverio; Agron Dogjani; Therese M Duane; Mushira Abdulaziz Enani; Paola Fugazzola; Joseph M Galante; Mahir Gachabayov; Wagih Ghnnam; George Gkiokas; Carlos Augusto Gomes; Ewen A Griffiths; Timothy C Hardcastle; Andreas Hecker; Torsten Herzog; Syed Mohammad Umar Kabir; Aleksandar Karamarkovic; Vladimir Khokha; Peter K Kim; Jae Il Kim; Andrew W Kirkpatrick; Victor Kong; Renol M Koshy; Igor A Kryvoruchko; Kenji Inaba; Arda Isik; Katia Iskandar; Rao Ivatury; Francesco M Labricciosa; Yeong Yeh Lee; Ari Leppäniemi; Andrey Litvin; Davide Luppi; Gustavo M Machain; Ronald V Maier; Athanasios Marinis; Cristina Marmorale; Sanjay Marwah; Cristian Mesina; Ernest E Moore; Frederick A Moore; Ionut Negoi; Iyiade Olaoye; Carlos A Ordoñez; Mouaqit Ouadii; Andrew B Peitzman; Gennaro Perrone; Manos Pikoulis; Tadeja Pintar; Giuseppe Pipitone; Mauro Podda; Kemal Raşa; Julival Ribeiro; Gabriel Rodrigues; Ines Rubio-Perez; Ibrahima Sall; Norio Sato; Robert G Sawyer; Helmut Segovia Lohse; Gabriele Sganga; Vishal G Shelat; Ian Stephens; Michael Sugrue; Antonio Tarasconi; Joel Noutakdie Tochie; Matti Tolonen; Gia Tomadze; Jan Ulrych; Andras Vereczkei; Bruno Viaggi; Chiara Gurioli; Claudio Casella; Leonardo Pagani; Gian Luca Baiocchi; Fausto Catena Journal: World J Emerg Surg Date: 2021-09-25 Impact factor: 5.469