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Ramadan S, Olsson Å, Ekberg O, Buchwald P. Predictive factors for recurrent acute appendicitis after conservative treatment. Scand J Gastroenterol 2024:1-6. [PMID: 38814018 DOI: 10.1080/00365521.2024.2359438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/19/2024] [Indexed: 05/31/2024]
Abstract
INTRODUCTION Conservative treatment of acute appendicitis is gaining popularity, and identifying patients with a higher risk of recurrence is becoming increasingly important. Previous studies have suggested that older age, male sex, diabetes, appendicolith and abscess formation may be contributing factors, however, results from the adult population are inconsistent. AIM This study aims to identify predictive factors for recurrent appendicitis after conservative treatment. METHODS This retrospective study included patients with conservatively treated acute appendicitis at Skåne University Hospital, Sweden during 2012-2019. Information on patient demographics at index admission and follow-up data were retrieved from medical charts and radiologic images. Uni -and multivariable logistic regression analysis were performed using Stata Statistical Software. RESULTS In total, 379 patients with conservatively treated acute appendicitis were identified, of which 78 (20.6%) had recurrence. All patients were followed-up for a minimum of 41 months after the first diagnosis of acute appendicitis unless appendectomy after successful conservative treatment or death occurred during follow-up. The median time to recurrence was 6.5 (1-17.8) months. After multivariable logistic regression analysis, external appendix diameter >10 mm [OR 2.4 (CI 1.37-4.21), p = .002] and intra-abdominal abscess [OR 2.05 (CI 1.18-3.56), p = .011] on computed tomography were significant independent risk factors for recurrent appendicitis. Appendicolith was not associated with an increased risk of recurrence. CONCLUSION This study suggests abscess formation and appendix distension of >10 mm to be potential risk factors for recurrent acute appendicitis after initial successful conservative treatment.
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Affiliation(s)
- Shaima Ramadan
- Department of Surgery, Colorectal Unit, Skåne University Hospital Malmö, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Åsa Olsson
- Department of Surgery, Colorectal Unit, Skåne University Hospital Malmö, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Olle Ekberg
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Department of Translational Medicine, Division of Medical Radiology, Skåne University Hospital Malmö, Malmö, Sweden
| | - Pamela Buchwald
- Department of Surgery, Colorectal Unit, Skåne University Hospital Malmö, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
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Kollias TF, Gallagher CP, Albaashiki A, Burle VS, Slouha E. Sex Differences in Appendicitis: A Systematic Review. Cureus 2024; 16:e60055. [PMID: 38854248 PMCID: PMC11162818 DOI: 10.7759/cureus.60055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2024] [Indexed: 06/11/2024] Open
Abstract
Appendicitis is one of the most common gastrointestinal conditions a person can develop. Throughout the years of assessing the different focuses of appendicitis, such as origin, symptoms, labs, diagnosis, treatment, and complications, there have been mere mentions of sex differences. One of the most known sex differences in appendicitis is the fact that males are significantly more likely to develop appendicitis compared to females. Another postulated difference is that males may be more likely to develop a perforated appendix. These differences significantly affect the various aspects of diagnosing and treating appendicitis and may even influence the outcome of appendicitis. Sex difference analysis of conditions has been widely researched over the last two decades, and sex can influence and impact conditions from initial presentation to the outcome of treatment. This paper evaluates the sex differences in appendicitis concerning incidence, risk factors, symptoms, diagnosis technique, treatment, and outcomes across ages. Following PRISMA guidelines, this systematic review reviewed PubMed, ScienceDirect, and ProQuest databases for articles pertaining to sex differences in appendicitis. The original article count was 21,121, which was narrowed down to 28 publications. It was found that, as previously described, males had a significantly higher rate of appendicitis, as well as were at significant risk of perforated appendicitis. No official risk factors were found to differ between the sexes, but males were more likely to complain of symptoms like right lower quadrant cramps/tenderness/pain and loss of appetite. Scores such as the pediatric appendicitis score (PAS) and Ohmann have been used to diagnose appendicitis, but the PAS was significantly more accurate for females, and the Ohmann resulted in significantly fewer negative appendectomies in females as well. Ultrasound and computed tomography (CT) are still the gold standards for diagnosis; however, while time to CT was significantly delayed in females, they were more likely to undergo extensive imaging, possibly to rule out other conditions. Males were more likely to undergo open appendectomies compared to females, who more frequently underwent laparoscopic appendectomy, yet females were more likely to experience complications. Further research should evaluate the influences that can predict postoperative outcomes following appendectomies between sexes and how to prevent/reduce their occurrence.
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Affiliation(s)
- Theofanis F Kollias
- Microbiology, Immunology, and Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | | | | | | | - Ethan Slouha
- Medicine, St. George's University School of Medicine, St. George's, GRD
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Lie JJ, Nabata K, Zhang JW, Zhao D, Park CM, Hameed SM, Dawe P, Hamilton TD. Factors associated with recurrent appendicitis after nonoperative management. Am J Surg 2023; 225:915-920. [PMID: 36925417 DOI: 10.1016/j.amjsurg.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/23/2023] [Accepted: 03/06/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND The objective of this study is to identify predictors for recurrent appendicitis in patients with appendicitis previously treated nonoperatively. METHODS This is a prospective cohort study of all adult patients with appendicitis treated at a tertiary care hospital. Patient demographics, radiographic information, management, and clinical outcomes were recorded. The primary outcome was recurrent appendicitis within 6 months after discharge from the index admission. Given the competing risk of interval appendectomy, a time-to-event competing-risk analysis was performed. RESULTS Of the 699 patients presenting with appendicitis, 74 were treated nonoperatively (35 [47%] were women; median [IQR] age, 48 [33,64] years), and 21 patients (29%) had recurrent appendicitis. On univariate and multivariate analysis, presence of an appendicolith on imaging was the only factor associated with a higher risk of recurrent appendicitis (p = 0.02). CONCLUSIONS The presence of appendicolith was associated with an increased risk of developing recurrent appendicitis within 6 months.
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Affiliation(s)
- Jessica J Lie
- Division of General Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada; Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Kylie Nabata
- Division of General Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
| | - Jenny W Zhang
- Faculty of Science, University of British Columbia, Vancouver, BC, Canada.
| | - Darren Zhao
- Faculty of Science, University of British Columbia, Vancouver, BC, Canada.
| | - Chan Mi Park
- Harvard T.H. Chan School of Public Health, Boston, MA, USA; Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Harvard Medical School, Boston, MA, USA.
| | - S Morad Hameed
- Division of General Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
| | - Philip Dawe
- Division of General Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
| | - Trevor D Hamilton
- Division of General Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
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Dibekoğlu C. Does the length matter in acute appendicitis for the perforation risk?: A retrospective cohort study. Medicine (Baltimore) 2022; 101:e32001. [PMID: 36482564 PMCID: PMC9726347 DOI: 10.1097/md.0000000000032001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
It has been hypothesized that short appendices increase intraluminal pressure more rapidly and perforate more frequently than long appendices. Two hundred seventy-seven adult patients were retrospectively analyzed and underwent an appendectomy between January 2015 and August 2021. Data extracted from patient records included sex, age, time from admission to operation (hospital interval), weekday or weekend operation time, and operative and pathological findings. Operation was performed on 273 patients, of whom 178 (65.2%) were male and 95 (34.8%) female. The mean age of the male patients was 31.7 ± 08 (range 18-67), and that of the female patients was 38.9 ± 1.4 (range 18-78). Perforation was observed in 57 (20.9%) patients. Sex was not a factor in the development of perforation (P = .95). The mean age of the patients with and without perforation was 40.1 ± 2.2 and 32.7 ± 0.7, respectively. The perforation rate increased with age (P = .003). Appendix lengths were similar in both groups, and length was not a factor in the development of perforation (P = .83). This study found that the development of perforated appendicitis is not related to the length of the appendix. The risk of perforation increased with age.
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Affiliation(s)
- Cengiz Dibekoğlu
- Department of General Surgery, Demiroglu Bilim University, İstanbul, Turkey
- * Correspondence: Cengiz Dibekoğlu, Istanbul Florence Nightingale Hastanesi, Abidei Hurriyet cad No. 156 Sisli Istanbul 34381, Turkey (e-mail: )
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Richards CB, Pendower LK, Kotecha PD, Elmqvist K, Chinaka FN, Tomasi I. Identifying Recurrence Risk Factors in CT-Confirmed Acute Appendicitis in Adults Managed Non-operatively During the COVID-19 Pandemic. Cureus 2022; 14:e28794. [PMID: 36225457 PMCID: PMC9533956 DOI: 10.7759/cureus.28794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 12/04/2022] Open
Abstract
Background/Objective: Acute appendicitis (AA) is predominantly managed with appendectomy, but can be treated non-operatively, leading to a high risk of recurrence. Non-operative management has been more common since the COVID-19 pandemic affected the feasibility of performing surgery. This case-control study analyzed non-operatively managed patients in order to identify clinical and radiological factors associated with recurrence risk. Methods: Over 12 months, 48 adults with CT-proven AA managed non-operatively were identified, and followed up for at least six further months to assess them for recurrence (readmission to hospital more than 14 days after discharge and after symptom resolution, requiring treatment for appendicitis). Clinical and CT data were collected and a Cox regression survival analysis was performed to produce hazards ratios (HRs). Results: Of the 48 patients, 12 (25%) experienced a recurrence up until the end of the follow-up period, eight of whom were then treated operatively, and four treated non-operatively. On the univariate analysis, greater recurrence risk was observed in patients with diabetes mellitus, higher heart rate (on admission and maximum value during admission), lower white cell count and neutrophils and appendiceal wall thinning on CT. On the multivariate analysis, diabetes mellitus (HR=7.72, p=0.021) and higher heart rate (HR=1.08, p=0.018) were associated with statistically significant greater recurrence risk. Conclusions: Diabetes mellitus and higher heart rate on admission are associated with greater recurrence risk of AA managed non-operatively. No CT findings were associated with statistically significant greater risk. Clinicians should, therefore, consider DM and heart rate when making decisions on appendicitis management, especially during the COVID-19 pandemic but also beyond it.
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Wang Q, Morikawa Y, Ueno R, Tomita H, Ihara T, Hagiwara Y, Suzuki S, Kato M, Shimojima N, Hataya H. Prognosis of ultrasonographic low-grade pediatric appendicitis treated with supportive care. Surgery 2021; 170:215-221. [PMID: 33836899 DOI: 10.1016/j.surg.2021.02.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND A previous report proposed ultrasonography-based classification as a promising means of predicting pediatric spontaneously resolving appendicitis. The present study investigated the long-term prognosis of supportive care for low-grade appendicitis identified by ultrasonography, defined as an appendix with a smooth submucosal layer irrespective of blood flow or an appendix with an irregular layer and increased blood flow. METHODS The present, retrospective cohort study enrolled patients under 16 years of age with acute appendicitis at a children's hospital between October 2010 and September 2016. The inclusion criteria were ultrasonography findings showing an appendix with (1) full visualization, (2) a diameter ≥6 mm, (3) a smooth submucosal layer or an irregular layer with increased blood flow, and (4) no appendiceal mass, abscess, or perforation. The exclusion criteria were: (1) a history of acute appendicitis, (2) antibiotic administration within 72 hours before diagnosis, and (3) antibiotic administration or surgery before supportive care. The primary outcome was the event-free duration, defined as a period of supportive care alone with no additional intervention or recurrence of appendicitis. RESULTS One hundred and eighty-two patients were enrolled. The median Alvarado score was 7 (interquartile range, 6-8), and the median follow-up duration in event-free cases was 1,922 days (interquartile range, 1,347-2,614 days). The event-free rate was 75.0%, 67.0%, and 62.5%, at 1, 2, and 5 years, respectively. CONCLUSION The long-term, event-free rate exceeded 60% in patients with low-grade appendicitis defined by ultrasonography who received neither surgery nor antibiotic treatment. Most recurrences occurred within 2 years of the initial diagnosis.
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Affiliation(s)
- Qianzhi Wang
- Department of General Pediatrics, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.
| | - Yoshihiko Morikawa
- Clinical Research Support Center, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Ryo Ueno
- Monash University, The Australian and New Zealand Intensive Care Research Centre, Melbourne, Australia
| | - Hirofumi Tomita
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Takateru Ihara
- Department of Emergency and Critical Care Medicine, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Yusuke Hagiwara
- Department of Emergency and Critical Care Medicine, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Satoko Suzuki
- Department of General Pediatrics, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Mototoshi Kato
- Department of Pediatric Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Shimojima
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Hiroshi Hataya
- Department of General Pediatrics, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
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Horst JA, Trehan I, Warner BW, Cohn BG. Can Children With Uncomplicated Acute Appendicitis Be Treated With Antibiotics Instead of an Appendectomy? Ann Emerg Med 2015; 66:119-22. [DOI: 10.1016/j.annemergmed.2015.01.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Indexed: 01/27/2023]
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Decision making on management of adult patients with acute appendicitis. Am J Emerg Med 2014; 32:1139-41. [PMID: 25027196 DOI: 10.1016/j.ajem.2014.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 06/01/2014] [Accepted: 06/03/2014] [Indexed: 11/22/2022] Open
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Volume-outcome relation for acute appendicitis: evidence from a nationwide population-based study. PLoS One 2012; 7:e52539. [PMID: 23300703 PMCID: PMC3530440 DOI: 10.1371/journal.pone.0052539] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 11/15/2012] [Indexed: 01/07/2023] Open
Abstract
Background Although procedures like appendectomy have been studied extensively, the relative importance of each surgeon's surgical volume-to-ruptured appendicitis has not been explored. The purpose of this study was to investigate the rate of ruptured appendicitis by surgeon-volume groups as a measure of quality of care for appendicitis by using a nationwide population-based dataset. Methods We identified 65,339 first-time hospitalizations with a discharge diagnosis of acute appendicitis (International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) codes 540, 540.0, 540.1 and 540.9) between January 2007 and December 2009. We used “whether or not a patient had a perforated appendicitis” as the outcome measure. A conditional (fixed-effect) logistic regression model was performed to explore the odds of perforated appendicitis among surgeon case volume groups. Results Patients treated by low-volume surgeons had significantly higher morbidity rates than those treated by high-volume (28.1% vs. 26.15, p<0.001) and very-high-volume surgeons (28.1% vs. 21.4%, p<0.001). After adjusting for surgeon practice location, and teaching status of practice hospital, and patient age, gender, and Charlson Comorbidity Index, and hospital acute appendicitis volume, patients treated by low-volume surgeons had significantly higher rates of perforated appendicitis than those treated by medium-volume surgeons (OR = 1.09, p<0.001), high-volume surgeons (OR = 1.16, p<0.001), or very-high-volume surgeons (OR = 1.54, p<0.001). Conclusion Our study suggested that surgeon volume is an important factor with regard to the rate of ruptured appendicitis.
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Appendicolith delays resolution of appendicitis following nonoperative management. J Gastrointest Surg 2012; 16:2274-9. [PMID: 23007281 DOI: 10.1007/s11605-012-2032-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 09/12/2012] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Success in nonoperative management is only based on the clinical symptoms of patients with acute appendicitis. However, imaging studies can provide further insight into the status of the appendix to monitor treatment response if immediate appendectomy is not undertaken. This study investigates sonographic resolution following nonoperative management and assesses the feasibility of incorporating ultrasound into patient care. MATERIALS AND METHODS Adult patients with acute appendicitis who had been successfully treated with nonoperative management were enrolled and received repeat sonographic examinations using 3-day intervals until sonographic resolution. The relationship between the time to achieve sonographic resolution and clinical parameters was identified using negative binomial regression models. RESULTS From January 2003 to December 2009, 128 patients were successfully treated with nonoperative management. Eighty patients completed sonographic examinations until achieving resolution. Sonographic resolution was achieved on 17 ± 12 days (range, 3-69 days). Ninety-five percent of the patients achieved sonographic resolution within 41 days. The appendicolith was positively related to the time to achieve sonographic resolution (rate ratios, 1.63; 95 % confidence intervals, 1.06-2.51). CONCLUSIONS Ultrasound can be used to evaluate the condition of the appendix to monitor treatment response following nonoperative management on the sixth week. An appendicolith delays sonographic resolution of appendicitis.
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Wei PL, Chen CS, Keller JJ, Lin HC. Monthly variation in acute appendicitis incidence: a 10-year nationwide population-based study. J Surg Res 2012; 178:670-6. [PMID: 22795352 DOI: 10.1016/j.jss.2012.06.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 06/02/2012] [Accepted: 06/15/2012] [Indexed: 12/15/2022]
Abstract
BACKGROUND The present study investigated the monthly variation of acute appendicitis and its association with climatic factors (ambient temperature, relative humidity, atmospheric pressure, rainfall, and hours of sunshine) using a nationwide population-based data set in Taiwan. METHODS We identified 237,760 first-time hospitalizations for acute appendicitis from 2000 to 2009. We used the auto-regressive integrated moving average method to examine the monthly variation in the acute appendicitis incidence rates after adjusting for the time-trend effect and seasonality. RESULTS Throughout the 10-year study period, we found that the monthly incidence rate of acute appendicitis demonstrated a fairly similar monthly pattern for each gender independently and for the pooled data. May through July had the greatest rates, decreasing in August to a trough in February. We used the autoregressive integrated moving average test for seasonality and found a significant difference in the monthly incidence rate for the pooled genders and for the male- and female-only groups (all P < 0.001). Furthermore, the auto-regressive integrated moving average regression models for the male, female, and combined groups all suggested that a significant positive association exists between the monthly incidence rates of acute appendicitis per 100,000 population and the ambient temperature after adjusting for time trends and month. CONCLUSIONS The results of our study have revealed a significant difference in the monthly incidence rate of acute appendicitis.
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Affiliation(s)
- Po-Li Wei
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan
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Di Saverio S, Coccolini F, Pisano M, Catena F, Jovine E, Tugnoli G, Ansaloni L. Re: Male gender is a risk factor for recurrent appendicitis following nonoperative treatment. World J Surg 2012; 36:486-7; author reply 488-9. [PMID: 21947459 DOI: 10.1007/s00268-011-1278-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lien WC, Chen CJ. Male Gender Is a Risk Factor for Recurrent Appendicitis following Nonoperative Treatment: Reply. World J Surg 2011. [DOI: 10.1007/s00268-011-1371-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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