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Tayebi A, Olamaeian F, Mostafavi K, Khosravi K, Tizmaghz A, Bahardoust M, Zakaryaei A, Mehr DE. Assessment of Alvarado criteria, ultrasound, CRP, and their combination in patients with suspected acute appendicitis: a single centre study. BMC Gastroenterol 2024; 24:243. [PMID: 39085761 PMCID: PMC11289915 DOI: 10.1186/s12876-024-03333-5] [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] [Received: 11/21/2023] [Accepted: 07/22/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND Acute appendicitis (AA) is one of the most common reasons for visiting the emergency room. The lack of proper diagnosis and rapid treatment of AA may lead to severe complications such as intestinal perforation and increased mortality. This study aimed to evaluate the diagnostic accuracy of the Alvarado criteria, ultrasound, and CRP criteria in comparison with their combined use in patients with suspected AA who presented to the emergency room. METHODS In this diagnostic accuracy study, 1411 patients with suspected AA who presented to the emergency department of Firoozabadi Hospital affiliated with Iran University of Medical Sciences and underwent appendectomy from October 2019 to October 2021 were examined. Nine hundred eighty-eight patients were enrolled. All patients were assessed using Alvarado, CRP, and ultrasound. The definitive diagnosis of AA was based on pathological findings and was considered the gold standard. Statistical analyses were performed with STATA VER 11.5. The diagnostic accuracy for each group was compared using the Pearson chi-square test. A value of p < 0.05 was considered statistically significant. RESULTS The mean age was 29.57 ± 13.66 years. The sensitivity and specificity of Alvarado in the diagnostic accuracy of appendicectomy were 75.2% and 61.3% (CI = 95%), respectively. The sensitivity of ultrasound and CRP for predicting appendicitis was significantly higher than the Alvarado criteria. The diagnostic accuracy for CRP was significantly higher than ultrasound (64.9% vs. 60.7%, P: 0.003). The diagnostic accuracy of the simultaneous use of Alvarado + CRP and CRP + Ultrasound was significantly higher than that of Alvarado + ultrasound. The sensitivity, specificity, and diagnostic accuracy of the simultaneous use of all three criteria together (Alvarado + Ultrasound + CRP) were estimated to be 94.9%, 25.8%, and 81.5% (CI = 95%), respectively, which were significantly higher than the use of other criteria. CONCLUSION This study showed that the Alvarado criteria had inadequate diagnostic sensitivity and accuracy for diagnosing acute appendicitis. The diagnostic accuracy of acute appendicitis increases to over 90% using the three Alvarado, ultrasound, and CRP criteria at the same time.
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Affiliation(s)
- Ali Tayebi
- Firoozabadi Clinical Research Development Unit (F A CRD U) School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Faranak Olamaeian
- Firoozabadi Clinical Research Development Unit (F A CRD U) School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Keihan Mostafavi
- Lung Transplantation Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kasra Khosravi
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Adnan Tizmaghz
- Firoozabadi Clinical Research Development Unit (F A CRD U) School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mansour Bahardoust
- Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Zakaryaei
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Daniyal Enayat Mehr
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Yang Y, Guo C, Gu Z, Hua J, Zhang J, Qian S, Shi J. The Global Burden of Appendicitis in 204 Countries and Territories from 1990 to 2019. Clin Epidemiol 2022; 14:1487-1499. [PMID: 36536897 PMCID: PMC9758930 DOI: 10.2147/clep.s376665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/01/2022] [Indexed: 07/23/2023] Open
Abstract
OBJECTIVE Appendicitis is a common surgical emergency. This study aimed to estimate the worldwide burden and trends of appendicitis from 1990 to 2019. METHODS Data on appendicitis were derived from the Global Burden of Disease 2019. Incidence and disability-adjusted life-years (DALYs) data were analyzed at global, regional, and national levels and stratified by sex, age, and socio-demographic index. The estimated annual percentage change and relative change were used to assess changing trends. Pearson's correlation test was used to assess the correlation between different measures. RESULTS Global incidence grew by 63.55% between 1990 and 2019, age-standardized incidence rate climbed by an estimated percentage change of 0.58 per year, whereas the number of DALY declined by 31.93% during the same period, with an estimated annual percentage change of -2.77. In 2019, the areas of Andean Latin America and the Caribbean had the highest age-standardized rates of incidence and DALYs. While South Asia saw the largest increase in age-standardized incidence rates, Andean Latin America saw the biggest decline in age-standardized rates of incidence and DALYs. At the national level, Bangladesh, Bhutan, and Peru were the top three countries in terms of age-standardized incidence rates in 2019, and Honduras, Haiti, and the Central African Republic held the highest age-standardized DALY rates. Ethiopia experienced the most age-standardized incidence rate increase, and Peru saw the largest decline in age-standardized rate of incidence and DALYs. Significant negative correlations between age-standardized DALY rates and socio-demographic index, between estimated annual percentage change and age-standardized incidence rates, were observed at the national level. CONCLUSION Appendicitis remains a major global health concern. Although the trends in DALYs decreased, the burden of incidence increased from 1990 to 2019. Policymakers should create health policies adapted to local conditions to manage the burden of appendicitis globally.
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Affiliation(s)
- Yongping Yang
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Chengjun Guo
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Zhaoxuan Gu
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Junjie Hua
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Jiaxuan Zhang
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Siyu Qian
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Jian Shi
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, People’s Republic of China
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Lee MS, Thomas A, Pearson JF, Purcell R, Frizelle F, Glyn T. Risk of colorectal cancer in patients with appendicitis over the age of 40 years. Colorectal Dis 2022; 25:624-630. [PMID: 36413088 DOI: 10.1111/codi.16429] [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: 05/22/2022] [Revised: 08/07/2022] [Accepted: 11/03/2022] [Indexed: 11/24/2022]
Abstract
AIM Acute appendicitis in late adulthood is hypothesized to be associated with an increased risk of colorectal cancer (CRC). This study aimed to establish whether patients over the age of 40 years presenting with appendicitis had an increased risk of being diagnosed with CRC over the subsequent 3 years. METHOD This is a retrospective review of patients aged 40 years and over presenting to Canterbury District Health Board with appendicitis from January 2010 to December 2015. Clinical details were obtained for these patients and cross-referenced with the New Zealand Cancer Registry for the 3 years following diagnosis. The incidence ratio rate (IRR) and standardized incidence ratio (SIR) were calculated by establishing the incidence of CRC in this cohort and comparing it with the Canterbury population data. RESULTS A total of 1099 patients met the inclusion criteria. The majority (75%) underwent CT as part of their initial work-up. The rate of colonoscopy increased with age from around 10% between 40 and 49 years to 27% for those 70 years and over. Eleven cases of CRC were identified, resulting in an IRR 2.35 (95% CI 1.17-4.21). The SIR for this population was 3.28 (95% CI 1.82-5.92). CONCLUSION The rate of CRC is significantly increased compared with the background population in this cohort. The results of this study support luminal investigation of adults aged 40 years and over who present with acute appendicitis as CT alone was insufficient to detect the pathology.
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Affiliation(s)
- Mei Sze Lee
- Department of Surgery, Canterbury District Health Board, Christchurch, New Zealand
| | - Alben Thomas
- Department of Surgery, Canterbury District Health Board, Christchurch, New Zealand
| | - John F Pearson
- Department of Pathology and Biomedical Science, University of Otago Christchurch, Christchurch, New Zealand.,Biostatistics and Computational Biology, University of Otago Christchurch, Christchurch, New Zealand
| | - Rachel Purcell
- Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| | - Francis Frizelle
- Department of Surgery, Canterbury District Health Board, Christchurch, New Zealand.,Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| | - Tamara Glyn
- Department of Surgery, Canterbury District Health Board, Christchurch, New Zealand.,Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
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Hung SK, Kou HW, Wu KH, Chen SY, Li CH, Lee CW, Hung YY, Gao SY, Wu PH, Hsieh CH, Chaou CH. Does medical disparity exist while treating severe mental illness patients with acute appendicitis in emergency departments? A real-world database study. BMC Psychiatry 2022; 22:488. [PMID: 35864481 PMCID: PMC9306199 DOI: 10.1186/s12888-022-04141-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Patients with severe mental illness (SMI) have a shorter life expectancy and have been considered by the World Health Organization (WHO) as a vulnerable group. As the causes for this mortality gap are complex, clarification regarding the contributing factors is crucial to improving the health care of SMI patients. Acute appendicitis is one of the most common indications for emergency surgery worldwide. A higher perforation rate has been found among psychiatric patients. This study aims to evaluate the differences in appendiceal perforation rate, emergency department (ED) management, in-hospital outcomes, and in-hospital expenditure among acute appendicitis patients with or without SMI via the use of a multi-centre database. METHODS Relying on Chang Gung Research Database (CGRD) for data, we selectively used its data from January 1st, 2007 to December 31st, 2017. The diagnoses of acute appendicitis and SMI were confirmed by combining ICD codes with relevant medical records. A non-SMI patient group was matched at the ratio of 1:3 by using the Greedy algorithm. The outcomes were appendiceal perforation rate, ED treatment, in-hospital outcome, and in-hospital expenditure. RESULTS A total of 25,766 patients from seven hospitals over a span of 11 years were recruited; among them, 11,513 were excluded by criteria, with 14,253 patients left for analysis. SMI group was older (50.5 vs. 44.4 years, p < 0.01) and had a higher percentage of females (56.5 vs. 44.4%, p = 0.01) and Charlson Comorbidity Index. An analysis of the matched group has revealed that the SMI group has a higher unscheduled 72-hour revisit to ED (17.9 vs. 10.4%, p = 0.01). There was no significant difference in appendiceal perforation rate, ED treatment, in-hospital outcome, and in-hospital expenditure. CONCLUSIONS Our study demonstrated no obvious differences in appendiceal perforation rate, ED management, in-hospital outcomes, and in-hospital expenditure among SMI and non-SMI patients with acute appendicitis. A higher unscheduled 72-hour ED revisit rate prior to the diagnosis of acute appendicitis in the SMI group was found. ED health providers need to be cautious when it comes to SMI patients with vague symptoms or unspecified abdominal complaints.
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Affiliation(s)
- Shang-Kai Hung
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Hao-Wei Kou
- grid.454211.70000 0004 1756 999XDepartment of Surgery, Division of General Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Kai-Hsiang Wu
- grid.454212.40000 0004 1756 1410Department of Emergency Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi County, 613 Taiwan ,grid.418428.3Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi County, 613 Taiwan
| | - Shou-Yen Chen
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Division of Medical Education, College of Medicine, Chang Gung University, Taoyuan City, 333 Taiwan
| | - Chih-Huang Li
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan City, 333 Taiwan
| | - Chao-Wei Lee
- grid.454211.70000 0004 1756 999XDepartment of Surgery, Division of General Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Division of Medical Education, College of Medicine, Chang Gung University, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922College of Medicine, Chang Gung University, Guishan, Taoyuan City, 333 Taiwan
| | - Yu-Yung Hung
- grid.415011.00000 0004 0572 9992Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung City, 813 Taiwan
| | - Shi-Ying Gao
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Po-Han Wu
- grid.454212.40000 0004 1756 1410Department of Emergency Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi County, 613 Taiwan
| | - Chiao-Hsuan Hsieh
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Chung-Hsien Chaou
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan. .,College of Medicine, Chang Gung University, Guishan, Taoyuan City, 333, Taiwan. .,Chang-Gung Medical Education Research Centre, Chang-Gung Memorial Hospital, No. 5, Fusing St., Guei-shan Township, Taoyuan City, 333, Taiwan.
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Hyperbilirubinemia and Hyponatremia as Predictors of Complicated Appendicitis. Med Sci (Basel) 2022; 10:medsci10030036. [PMID: 35893118 PMCID: PMC9326721 DOI: 10.3390/medsci10030036] [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] [Received: 04/27/2022] [Revised: 06/25/2022] [Accepted: 06/30/2022] [Indexed: 11/16/2022] Open
Abstract
Several studies have reported elevated serum bilirubin or reduced serum sodium levels in patients with complicated appendicitis (CA). This study examined the efficacy of hyperbilirubinemia, hyponatremia, and both combined in the preoperative diagnosis of CA. Patients who underwent surgery for acute appendicitis were included in this retrospective review. In total, 247 patients were included in the final analysis. Of these, 36 (14.2%) had early appendicitis, 177 (72.0%) had acute suppurative appendicitis, 32 (13.0%) had necrotizing/gangrenous acute appendicitis, and 2 (0.8%) had other types of appendicitis. The mean total bilirubin (TBIL) level was significantly higher in patients with CA than in those with uncomplicated appendicitis. Conversely, the mean serum sodium level was significantly lower in patients with CA than in those with uncomplicated appendicitis. The levels of TBIL (odds ratio: 1.098, 95% CI: 1.052–1.147) and serum sodium (odds ratio: 0.743, 95% CI: 0.646–0.855) were associated with CA. Hyponatremia combined with hyperbilirubinemia yielded significant discriminatory value for the diagnosis of CA. TBIL and serum sodium levels can be considered as adjuvant parameters in the diagnosis of perforated/necrotizing appendicitis. Although hyperbilirubinemia and hyponatremia together were better able to determine the risk of CA than either marker alone, other markers are required to definitively predict CA. Furthermore, large-scale studies are needed to confirm these findings.
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Utility of Red Cell Distribution Width (RDW) as a Noninvasive Biomarker for the Diagnosis of Acute Appendicitis: A Systematic Review and Meta-Analysis of 5222 Cases. Diagnostics (Basel) 2022; 12:diagnostics12041011. [PMID: 35454059 PMCID: PMC9032964 DOI: 10.3390/diagnostics12041011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 12/14/2022] Open
Abstract
Background: Despite great advances in medicine, numerous available laboratory markers, and radiological imaging, the diagnosis of acute appendicitis (AA) in some cases still remains controversial and challenging for clinicians. Because of that, clinicians are still looking for an ideal marker that would be specific to AA. The red blood cell distribution width (RDW) has been recently investigated in several studies as a potential biomarker for AA. The aim of this systematic review and meta-analysis was to systematically summarize and compare all relevant data on RDW as a diagnostic biomarker for AA. Methods: This systematic review and meta-analysis were performed as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Scientific databases (PubMed, Scopus, Web of Science, and Excerpta Medica database—EMBASE) were systematically searched for relevant comparative studies by two independent researches using keywords ((red cell distribution width) OR rdw) AND (appendicitis). An independent assessment of the methodological quality was performed by two authors using the Downs and Black scale. RevMan 5.4 software was used to perform the meta-analysis. Results: Fifteen studies were included in the final meta-analysis; the majority of the studies was retrospective. Nine studies compared the RDW values between AA and non-AA; four studies compared the same between AA and healthy controls, while two studies compared the RDW values among all three groups. The estimated heterogeneity among the studies for all outcome was statistically significant (I2 = 92−99%, p < 0.00001). The pooling the data demonstrated no statistically significant difference in the RDW values (weighted mean difference (WMD) = 0.03, 95% CI = (−0.46, 0.52), p = 0.91) between AA and healthy controls as well as between AA and non-AA cases (WMD = 0.23, 95%CI = (−0.19, 0.65), p = 0.28). A separate subanalysis was performed to evaluate the utility of this biomarker for the pediatric age group. Pooling the data demonstrated no significant difference among the AA and non-AA groups in terms of the RDW values (WMD = 0.99, 95% CI = (−0.35, 2.33), p = 0.15). Conclusion: The RDW value difference demonstrated no statistically significant difference in AA versus healthy individuals and AA versus non-AA individuals. At the moment, there is no evidence of RDW utility in diagnostic testing of AA. Further research with prospective, multicenter studies and studies targeting special patient groups with a large sample size are needed in this field.
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Chung WS, Chung S, Hsu CY, Lin CL. Risk of Inflammatory Bowel Disease Following Appendectomy in Adulthood. Front Med (Lausanne) 2021; 8:661752. [PMID: 34150801 PMCID: PMC8206496 DOI: 10.3389/fmed.2021.661752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022] Open
Abstract
Background: The appendix has a complicated immune function, and appendectomy may derange the immune system. Studies on the relationship between appendectomy and subsequent inflammatory bowel disease (IBD) have been inconsistent. We conducted a nationwide cohort study consisting of individuals who underwent appendectomy to evaluate the incidence and risk of ulcerative colitis (UC) and Crohn's disease (CD). Methods: We identified patients aged >20 years who underwent appendectomy between 2000 and 2012 from inpatient claims of the National Health Insurance Research Database (NHIRD) and assigned them to the appendectomy cohort. Then, we randomly selected patients without appendectomy in the NHIRD and assigned them to the comparison cohort in a frequency-matched 1:1 ratio based on sex, age, and index year. We tracked down all participants until IBD diagnosis, death, or the end of 2013. Cox models were used to estimate the hazard ratio (HR), and 95% confidence intervals (CIs) were used to compare the IBD risk between the appendectomy and comparison cohorts. Results: The appendectomy and comparison cohorts in the study consisted of 246 562 patients each. The appendectomy cohort exhibited a 2.23- and 3.48-fold higher risk of UC (adjusted HR = 2.23, 95% CI = 1.59-3.12) and CD (adjusted HR = 3.48, 95% CI = 2.42-4.99), respectively, than did the comparison cohort. UC and CD risks significantly increased in the appendectomy cohort regardless of whether appendicitis was present. Conclusions: Our study suggests that appendectomy increases UC and CD risks irrespective of appendicitis.
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Affiliation(s)
- Wei-Sheng Chung
- Department of Internal Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan.,Department of Health Services Administration, China Medical University, Taichung, Taiwan.,Department of Healthcare Administration, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Sunny Chung
- Department of Chemistry, Point Loma Nazarene University, San Diego, CA, United States
| | - Chung-Y Hsu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, Taichung, Taiwan
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Canal C, Scherer J, Birrer DL, Vehling MJ, Turina M, Neuhaus V. Appendectomy as Teaching Operation: No Compromise in Safety-An Audit of 17,106 Patients. JOURNAL OF SURGICAL EDUCATION 2021; 78:570-578. [PMID: 32855104 DOI: 10.1016/j.jsurg.2020.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/24/2020] [Accepted: 08/02/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE In a surgical career, teaching of surgical procedures plays a central role. In this study we want to evaluate the influence of teaching in appendectomies on the in-hospital outcome. DESIGN AND SETTING Retrospectively, 26,436 cases from the national quality measurement database (AQC) between the years 2009 and 2017 were evaluated using the diagnosis and the procedure codes. Included were all cases with appendicitis (International Classification of Diseases diagnostic codes K35-K37), surgical treatment (appendectomy), and a documented teaching status of the procedure. Variables were sought in bivariate and multivariate analyses. The occurrence of any complication was the primary outcome, whereas in-hospital mortality was the secondary outcome. PARTICIPANTS A total of 17,106 patients with a mean age of 37 ± 19 years remained for final analysis. A total of 6267 operations (37%), were conducted as teaching-operations. Seventy-four percent of all teaching procedures were performed by residents. RESULTS We found no statistical association between teaching operations and complication rates or mortality. However, the teaching group showed longer duration of surgery (+ 11%). CONCLUSIONS There was no influence of the training status of the appendectomy procedure on complication rates and in-hospital mortality. However, there was a prolonged duration of surgery. Despite these statistically significant differences, a comparable clinical outcome was observed in all patients, thus justifying the benefits of resident training.
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Affiliation(s)
- Claudio Canal
- Division of Trauma Surgery, Department of Traumatology, University Hospital Zurich, University of Zurich, Switzerland
| | - Julian Scherer
- Division of Trauma Surgery, Department of Traumatology, University Hospital Zurich, University of Zurich, Switzerland
| | - Dominique Lisa Birrer
- Department of General and Transplant Surgery, University Hospital Zurich, University of Zurich, Switzerland
| | - Malte Johannes Vehling
- Division of Trauma Surgery, Department of Traumatology, University Hospital Zurich, University of Zurich, Switzerland
| | - Matthias Turina
- Department of General and Transplant Surgery, University Hospital Zurich, University of Zurich, Switzerland
| | - Valentin Neuhaus
- Division of Trauma Surgery, Department of Traumatology, University Hospital Zurich, University of Zurich, Switzerland.
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General Versus Neuraxial Anesthesia for Appendectomy: A Multicenter International Study. World J Surg 2021; 45:3295-3301. [PMID: 33554296 DOI: 10.1007/s00268-021-05978-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND In resource-limited countries, open appendectomy is still performed under general anesthesia (GA) or neuraxial anesthesia (NA). We sought to compare the postoperative outcomes of appendectomy under NA versus GA. METHODS We conducted a post hoc analysis of the International Patterns of Opioid Prescribing (iPOP) multicenter study. All patients ≥ 16 years-old who underwent an open appendectomy between October 2016 and March 2017 in one of the 14 participating hospitals were included. Patients were stratified into two groups: NA-defined as spinal or epidural-and GA. All-cause morbidity, hospital length of stay (LOS), and pain severity were assessed using univariate analysis followed by multivariable logistic regression adjusting for the following preoperative characteristics: age, gender, body mass index (BMI), smoking, history of opioid use, emergency status, and country. RESULTS A total of 655 patients were included, 353 of which were in the NA group and 302 in the GA group. The countries operating under NA were Colombia (39%), Thailand (31%), China (23%), and Brazil (7%). Overall, NA patients were younger (mean age (SD): 34.5 (14.4) vs. 40.7 (17.9), p-value < 0.001) and had a lower BMI (mean (SD): 23.5 (3.8) vs. 24.3 (5.2), p-value = 0.040) than GA patients. On multivariable analysis, NA was independently associated with less postoperative complications (OR, 95% CI: 0.30 [0.10-0.94]) and shorter hospital LOS (LOS > 3 days, OR, 95% CI: 0.47 [0.32-0.68]) compared to GA. There was no difference in postoperative pain severity between the two techniques. CONCLUSIONS Open appendectomy performed under NA is associated with improved outcomes compared to that performed under GA. Further randomized controlled studies should examine the safety and value of NA in lower abdominal surgery.
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Gutierrez M, Artioli T, Lopes FI, Monteiro FR, Boratto SDF. Appendectomy: prognostic factors in the brazilian unified health system. ACTA ACUST UNITED AC 2020; 66:1493-1497. [PMID: 33295398 DOI: 10.1590/1806-9282.66.11.1493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 06/02/2020] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Acute appendicitis (AA) is the most common cause of surgical acute abdomen. Postoperative complications in emergency care are reflections of the surgical procedure and pre- and postoperative factors. OBJECTIVE Define prognostic factors for patients who underwent appendectomy, comparing them with the literature. METHODS Descriptive observational study with a cross-sectional design based on data from the emergency/urgency appendectomy records between September 2018 and April 2019. Variables of interest were considered based on intrinsic patient data, clinical status, and perioperative management factors. Primary outcomes considered: postoperative complications from hospital admission discharge and prolonged hospital stay for > 2 days. Secondary outcome: death. The results were evaluated by Fisher's exact test (p <0.05). RESULTS We identified 48 patients undergoing an appendectomy. Young adults accounted for 68.7%. From the total, 58.3% were males, 6 (12.5%) had hospitalization> 2 days, 4 (8.3%) had complications and no deaths. Among the variables, the stage of AA, the time of complaint up until seeking care, and advanced age were correlated with worse prognosis during hospitalization (p <0.05). The emergence of immediate postoperative complications was correlated with longer hospital stay (p <0.05). DISCUSSION The descriptive data of the sample converge with the epidemiological profile of patients with AA in the literature, corroborating the applicability of conventional guidelines. The results strengthen the hypothesis that the patient's flow with abdominal manifestations is complicated from the first contact with SUS to the resolution of the condition. CONCLUSION Knowledge of the epidemiological profile and perioperative predictors that are most related to complications favor the appropriate management of patients.
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Do Racial/Ethnic and Economic Factors Affect the Rate of Complicated Appendicitis in Children? Surg Res Pract 2020; 2020:3268567. [PMID: 32685663 PMCID: PMC7341372 DOI: 10.1155/2020/3268567] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 05/21/2020] [Accepted: 06/05/2020] [Indexed: 01/07/2023] Open
Abstract
Introduction Appendicitis continues to be one of the most common surgical conditions in the pediatric population. We set out to determine demographic and practice variations among children admitted with appendicitis and highlight the racial/ethnic and healthcare access role in relation to the rate of complicated appendicitis using the 2012 Kids' Inpatient Database (KID). Methodology. A retrospective cross-sectional database study was performed using the 2012 KID. All children (age 1 months to 20 years) with appendicitis were identified using the ICD-9 diagnosis codes. Children with a diagnosis of appendicitis were compared with all other discharges. Among children with appendicitis, demographic and practice variations and the rate of complicated appendicitis were evaluated. Univariate and multivariate analyses were done to analyze the data. Sample weighing was done to present national estimates. Results In 2012, a total of 89, 935 out of 2.7 million pediatric hospital discharges (3.3%) had a diagnosis of appendicitis. The incidence of appendicitis was higher in males (4.7%), 6–15-year age group (7.43%), Hispanics (5.2%), and in the Western region (5.2%) and was lower in infants (0.02%) and African American children (1.2%) (p < 0.0001). The proportion of children with peritonitis or abscess was higher in children's hospitals (48.2% vs. 29.0%; OR 2.3, 95% CI: 2.2–2.4). The risk of complicated appendicitis was inversely related to age, while racial and ethnic minority status, bottom quartile of the income group, and government insurance increased the risk. Laparoscopic appendectomy was performed more frequently at children's hospitals (84.8% vs. 74.3%; p < 0.0001). Conclusions Appendicitis is more common in Hispanics, males, older children, and in the Western region. Complicated appendicitis is more common in younger children, minority groups, low-income group, and children with government insurance. Children's hospitals manage more children with complicated appendicitis and are more likely to perform laparoscopic appendectomy.
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Yiasemidou M, Glassman D, Khan K, Downing J, Sivakumar R, Fawole A, Biyani CS. Validation of a cost-effective appendicectomy model for surgical training. Scott Med J 2020; 65:46-51. [PMID: 31959075 DOI: 10.1177/0036933019900340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Appendicitis is a commonly occurring condition worldwide. The gold standard treatment is appendicectomy. Although training models are commercially available for this procedure, they are often associated with high cost. Here we present a cost-effective model. AIM To establish construct validity of a cost-effective laparoscopic appendicectomy simulation model. METHODS Three groups of surgeons were recruited; novices (n = 31), of intermediate expertise (n = 13) and experts (n = 5) and asked to perform a simulated laparoscopic appendicectomy using the new model. Their performance was assessed by a faculty member and compared between the three groups using a validated scoring system (Global Operative Assessment of Laparoscopic Skills [GOALS] score). RESULTS One-way ANOVA test showed a significant difference in task performance between groups (p < 0.0001). Post-hoc comparisons after the application of Bonferroni correction (statistically significant p value <0.017) demonstrate a significant difference in performance between all groups for all GOALS categories as well as the total score. Effect size calculations showed that experience level had moderate (Eta-squared >0.5 and <0.8) and significant (>0.8) impact on the performance of the simulated procedure. CONCLUSION The model described in this study is cost-effective, valid and can adequately simulate appendicectomy. The authors recommend inclusion of this model to postgraduate surgical training.
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Affiliation(s)
- Marina Yiasemidou
- Honorary Research Fellow, Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, St. James University Hospital, Leeds, UK.,Specialty Registrar Colorectal Surgery, Mid Yorkshire NHS Trust, West Yorkshire, UK
| | - Daniel Glassman
- TIG Oncoplastic Fellow Breast Surgery, York Teaching Hospital, York, UK
| | - Khalid Khan
- Registrar Colorectal Surgery, Hull and East Riding NHS Trust, Hull, UK
| | - Justine Downing
- Specialty Registrar Breast Surgery, Barnsley District General Hospital, Barnsley, UK
| | | | - Adeshina Fawole
- Consultant Colorectal Surgeon, Mid Yorkshire NHS Trust, West Yorkshire, UK
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13
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Obsa MS, Adema BG, Shanka GM, Lake EA, Azeze GA, Fite RO. Prevalence of acute appendicitis among patient admitted for acute abdomen in Ethiopia: Systematic review and meta-analysis. INTERNATIONAL JOURNAL OF SURGERY OPEN 2020. [DOI: 10.1016/j.ijso.2020.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gomes CA, Abu-Zidan FM, Sartelli M, Coccolini F, Ansaloni L, Baiocchi GL, Kluger Y, Di Saverio S, Catena F. Management of Appendicitis Globally Based on Income of Countries (MAGIC) Study. World J Surg 2019; 42:3903-3910. [PMID: 30006833 DOI: 10.1007/s00268-018-4736-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Our aim is to compare the management approaches and clinical outcomes of acute appendicitis according to annual Gross National Income per Capita (GNI/Capita) of countries. METHODS Consecutive patients who were diagnosed to have acute appendicitis from 116 centers of 44 countries were prospectively studied over a 6-month period (April-September 2016). Studied variables included demography, Alvarado score, comorbidities, radiological and surgical management, histopathology, and clinical outcome. Data were divided into three groups depending on the GNI/Capita. RESULTS A total of 4271 patients having a mean (SD) age of 33.4 (17.3) years were studied. Fifty-five percent were males. Two hundred and eighty patients were from lower-middle-income (LMI) countries, 1756 were from upper-middle-income (UMI) countries, and 2235 were from high-income (HI) countries. Patients in LMI countries were significantly younger (p < 0.0001) and included more males (p < 0.0001). CT scan was done in less than 8% of cases in LMI countries, 23% in UMI countries, and 38% in HI countries. Laparoscopy was performed in 73% of the cases in the HI countries, while open appendectomy was done in more than 60% of cases in both LMI and UMI countries (p < 0.0001). The longest mean hospital stay was in the UMI group (4.84 days). There was no significant difference in the complication or death rates between the three groups. The overall death rate was 3 per 1000 patients. CONCLUSIONS There is great variation in the presentation, severity of disease, radiological workup, and surgical management of patients having acute appendicitis that is related to country income. A global effort is needed to address this variation. Individual socioeconomic status could be more important than global country socioeconomic status in predicting clinical outcome.
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Affiliation(s)
- Carlos Augusto Gomes
- Surgery Department, Faculdade de Ciências Médicas e da Saúde Juiz de Fora (SUPREMA), Hospital Universitário Therezinha de Jesus, Juiz de Fora, Brazil
| | - Fikri M Abu-Zidan
- Department of Surgery, College of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates.
| | | | - Federico Coccolini
- General, Emergency and Trauma Surgery, Papa Giovanni XXIII Hospital, P.zza OMS 1, 24128, Bergamo, Italy
| | - Luca Ansaloni
- General, Emergency and Trauma Surgery, Papa Giovanni XXIII Hospital, P.zza OMS 1, 24128, Bergamo, Italy
| | - Gian Luca Baiocchi
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Yoram Kluger
- Department of General Surgery, Rambam Health Care Campus, Haifa, Israel
| | - Salomone Di Saverio
- Department of Surgery, Addenbrookes Hospital Cambridge University Hospital NHS Trust, Cambridge, UK
| | - Fausto Catena
- Department of General Surgery, Maggiore Hospital, Parma, Italy.,Department of Surgery, "Infermi" Hospital, Rimini, Italy
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Buitrago G, Junca E, Eslava-Schmalbach J, Caycedo R, Pinillos P, Leal LC. Clinical Outcomes and Healthcare Costs Associated with Laparoscopic Appendectomy in a Middle-Income Country with Universal Health Coverage. World J Surg 2019; 43:67-74. [PMID: 30145672 DOI: 10.1007/s00268-018-4777-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Although many studies have compared outcomes of laparoscopic appendectomy (LA) and open appendectomy (OA), some clinical and economic outcomes continue to be controversial, particularly in low-medium-income countries. We aimed at determining clinical and economic outcomes associated with LA versus OA in adult patients in Colombia. METHODS Retrospective, cohort study based on administrative healthcare records included all patients who underwent LA or OA in Colombia's contributory regime between July 1, 2013, and September 30, 2015. Outcomes were 30-day mortality rates, ICU admissions rates, length of stay (LOS), and hospital costs provided until discharge. Propensity score matching techniques were used to balance the baseline characteristics of patients (age, sex, comorbidities based on the Charlson index, insurer, and geographic location) and to estimate the average treatment effect (ATE) of LA as compared to OA over outcomes. RESULTS A total of 65,625 subjects were included, 92.9% underwent OA and 7.1% LA. For the entire population, 30-day mortality was 0.74 per 100 appendectomies (95% CI 0.67-0.81), the mean and median LOS were 3.83 days and 1 day, respectively, and the ICU admissions rate during the first 30 days was 7.92% (95% CI 7.71-8.12). The ATE shows an absolute difference in the mortality rate after 30 days of -0.35 per 100 appendectomies (p = 0.023), in favor of LA. No effects on ICU admissions or LOS were identified. LA was found to increase costs by 514.13 USD on average, with total costs of 772.78 USD for OA and 1286.91 USD for LA (p < 0.001). CONCLUSIONS In Colombia's contributory regime, LA is associated with lower 30-day mortality rate and higher hospital costs as compared to OA. No differences are found in ICU admissions or LOS.
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Affiliation(s)
- Giancarlo Buitrago
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia.
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia.
| | - Edgar Junca
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia
| | - Javier Eslava-Schmalbach
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia
| | - Ruben Caycedo
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia
| | - Pilar Pinillos
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia
| | - Luis Carlos Leal
- Departamento de Cirugía, Facultad de Medicina, Universidad Nacional de Colombia, Carrera 45 N° 26-85, Edificio 471, Bogotá, Colombia
- Hospital Universitario Nacional de Colombia, Bogotá, Colombia
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Hernandez MC, Finnesgaard E, Aho JM, Kong VY, Bruce JL, Polites SF, Laing GL, Clarke DL, Zielinski MD. Appendicitis: Rural Patient Status is Associated with Increased Duration of Prehospital Symptoms and Worse Outcomes in High- and Low-Middle-Income Countries. World J Surg 2018; 42:1573-1580. [PMID: 29134308 DOI: 10.1007/s00268-017-4344-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Appendicitis is a significant economic and healthcare burden in low-, middle-, and high-income countries. We aimed to determine whether urban and rural patient status would affect outcomes in appendicitis in a combined population regardless of country of economic status. We hypothesize that patients from rural areas and both high- and low-middle-income countries would have disproportionate outcomes and duration of symptoms compared to their urban counterparts. METHODS Adults (≥18 years) with appendicitis during 2010-2016 in South Africa and USA were reviewed using multi-institutional data. Baseline demographic, operative details, durations of stay, and complications (Clavien-Dindo index) were collected. AAST grades were assigned by two independent reviewers based on operative findings. Summary, univariate, and multivariable analyses of rural and urban patients in both countries were performed. RESULTS There were 2602 patients with a median interquartile range [IQR] of 26 [18-40] years; 45% were female. Initial management included McBurney incisions (n = 458, 18%), laparotomy (n = 915, 35%), laparoscopic appendectomy (n = 1185, 45%), and laparoscopy converted to laparotomy (n = 44, 2%). Comparing rural versus urban patient status, there were increased overall median [IQR] AAST grades (3 [1-5] vs. 2 [1-3], p = 0.001), prehospital duration of symptoms (2 [1-5] vs. 2 [1-3], p = 0.001), complications (44.3 vs. 23%, p = 0.001), and need for temporary abdominal closure (20.3 vs. 6.9%, p = 0.001). CONCLUSION Despite socioeconomic status and country of origin, patients from more rural environments demonstrate poorer outcomes notwithstanding significant differences in overall disease severity. The AAST grading system may serve a potential benchmark to recognize areas with disparate disease burdens. This information could be used for strategic improvements for surgeon placement and availability.
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Affiliation(s)
- Matthew C Hernandez
- Division of Trauma Critical Care and General Surgery, Department of Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
| | - Eric Finnesgaard
- Mayo Medical School, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Johnathon M Aho
- Division of Trauma Critical Care and General Surgery, Department of Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.,Biomedical Engineering and Physiology, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Victor Y Kong
- Department of Surgery, Pietermaritzburg Metropolitan Hospital Complex, University of KwaZulu-Natal, Durban, South Africa
| | - John L Bruce
- Department of Surgery, Pietermaritzburg Metropolitan Hospital Complex, University of KwaZulu-Natal, Durban, South Africa
| | - Stephanie F Polites
- Division of Trauma Critical Care and General Surgery, Department of Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Grant L Laing
- Department of Surgery, Pietermaritzburg Metropolitan Hospital Complex, University of KwaZulu-Natal, Durban, South Africa
| | - Damian L Clarke
- Department of Surgery, Pietermaritzburg Metropolitan Hospital Complex, University of KwaZulu-Natal, Durban, South Africa
| | - Martin D Zielinski
- Division of Trauma Critical Care and General Surgery, Department of Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
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17
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Lemos CM, Alem M, Campos TD. Evolution of incidence, mortality and cost of nontraumatic abdominal emergencies treated in Brasil in a period of nine years. Rev Assoc Med Bras (1992) 2018; 64:374-378. [PMID: 30133618 DOI: 10.1590/1806-9282.64.04.374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/24/2017] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE To evaluate the incidence, mortality and cost of non-traumatic abdominal emergencies treated in Brazilian emergency departments. METHODS This paper used DataSus information from 2008 to 2016 (http://www.tabnet.datasus.gov.br). The number of hospitalizations, costs - AIH length of stay and mortality rates were described in acute appendicitis, acute cholecystitis, acute pancreatitis, acute diverticulitis, gastric and duodenal ulcer, and inflammatory intestinal disease. RESULTS The disease that had the highest growth in hospitalization was diverticular bowel disease with an increase of 68.2%. For the period of nine years, there were no significant changes in the average length of hospital stay, with the highest increase in gastric and duodenal ulcer with a growth of 15.9%. The mortality rate of gastric and duodenal ulcer disease increased by 95.63%, which is significantly high when compared to the other diseases. All had their costs increased but the one that proportionally had the highest increase in the last nine years was the duodenal and gastric ulcer, with an increase of 85.4%. CONCLUSION Non-traumatic abdominal emergencies are extremely prevalent. Hence, the importance of having updated and comparative data on the mortality rate, number of hospitalization and cost generated by these diseases to provide better healthcare services in public hospitals.
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Affiliation(s)
| | - Mariana Alem
- Universidade Anhembi Morumbi, São Paulo, SP, Brasil
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18
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Lu P, Yang NP, Chang NT, Lai KR, Lin KB, Chan CL. Effect of socioeconomic inequalities on cholecystectomy outcomes: a 10-year population-based analysis. Int J Equity Health 2018; 17:22. [PMID: 29433528 PMCID: PMC5809951 DOI: 10.1186/s12939-018-0739-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 02/06/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Although numerous epidemiological studies on cholecystectomy have been conducted worldwide, only a few have considered the effect of socioeconomic inequalities on cholecystectomy outcomes. Specifically, few studies have focused on the low-income population (LIP). METHODS A nationwide prospective study based on the Taiwan National Health Insurance dataset was conducted during 2003-2012. The International Classification of ICD-9-CM procedure codes 51.2 and 51.21-51.24 were identified as the inclusion criteria for cholecystectomy. Temporal trends were analyzed using a joinpoint regression, and the hierarchical linear modeling (HLM) method was used as an analytical strategy to evaluate the group-level and individual-level factors. Interactions between age, gender and SES were also tested in HLM model. RESULTS Analyses were conducted on 225,558 patients. The incidence rates were 167.81 (95% CI: 159.78-175.83) per 100,000 individuals per year for the LIP and 123.24 (95% CI: 116.37-130.12) per 100,000 individuals per year for the general population (GP). After cholecystectomy, LIP patients showed higher rates of 30-day mortality, in-hospital complications, and readmission for complications, but a lower rate of routine discharge than GP patients. The hospital costs and length of stay for LIP patients were higher than those for GP patients. The multilevel analysis using HLM revealed that adverse socioeconomic status significantly negatively affects the outcomes of patients undergoing cholecystectomy. Additionally, male sex, advanced age, and high Charlson Comorbidity Index (CCI) scores were associated with higher rates of in-hospital complications and 30-day mortality. We also observed that the 30-day mortality rates for patients who underwent cholecystectomy in regional hospitals and district hospitals were significantly higher than those of patients receiving care in a medical center. CONCLUSION Patients with a disadvantaged finance status appeared to be more vulnerable to cholecystectomy surgery. This result suggested that further interventions in the health care system are necessary to reduce this disparity.
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Affiliation(s)
- Ping Lu
- School of Economics and Management, Xiamen University of Technology, Xiamen, 361024, China.,Department of Information Management, Yuan Ze University, Taoyuan, 32003, Taiwan
| | - Nan-Ping Yang
- Department of Surgery, Keelung Hospital, Ministry of Health and Welfare, Keelung, 20148, Taiwan.,Institute of Public Health, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Nien-Tzu Chang
- School of Nursing, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - K Robert Lai
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003, Taiwan.,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003, Taiwan
| | - Kai-Biao Lin
- School of Computer & Information Engineering, Xiamen University of Technology, Xiamen, 361024, China
| | - Chien-Lung Chan
- Department of Information Management, Yuan Ze University, Taoyuan, 32003, Taiwan. .,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003, Taiwan.
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Yang HJ, Cheng WJ. Antipsychotic use is a risk factor for hyponatremia in patients with schizophrenia: a 15-year follow-up study. Psychopharmacology (Berl) 2017; 234:869-876. [PMID: 28078393 DOI: 10.1007/s00213-017-4525-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 01/02/2017] [Indexed: 01/05/2023]
Abstract
RATIONALE Hyponatremia affects 10% of patients with chronic schizophrenia and can lead to severe consequences. However, the role of antipsychotics and other risk factors in hyponatremia occurrence has remained inconsistent. OBJECTIVE This study examined the association between antipsychotic use and hyponatremia occurrence in patients with schizophrenia. METHODS We utilized the National Health Insurance Research Database to follow 2051 patients with schizophrenia from 1998 to 2013. Among them, 137 (6.7%) developed hyponatremia. Sociodemographic characteristics, physical comorbidities, and psychiatric treatment experiences were compared between those who had hyponatremia and those who did not. A Cox proportional hazards model was used to examine the hazard ratios (HRs) of these characteristics. RESULTS In patients with hyponatremia, the mean age at first hyponatremia occurrence was 54.7 ± 13.9 years, an average of 9.5 ± 4.0 years after schizophrenia diagnosis, and 32.9% of them were off antipsychotics before hyponatremia occurrences. Age at schizophrenia diagnosis (HR = 1.1), low-income household (HR = 2.4), comorbidities (HR = 1.2), and psychiatric admissions (HR = 1.04) were associated with the risks of hyponatremia. Compared with no antipsychotic use, atypical (HR = 2.1) and typical antipsychotics (HR = 3.1) were associated with an elevated risk of hyponatremia, after adjustment for age, sex, and physical comorbidities. Carbamazepine use (HR = 2.9) was also a significant risk factor for hyponatremia (p < 0.05). CONCLUSIONS Antipsychotic use in patients with schizophrenia with polypharmacy should be monitored for hyponatremia occurrences. Clinicians should pay attention to the impact of poor living conditions on hyponatremia occurrence.
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Affiliation(s)
- Hang-Ju Yang
- Department of Emergency Medicine, Jen-Ai Hospital, 483 Dong Rong Road, Taichung, 41265, Taiwan
| | - Wan-Ju Cheng
- Department of Psychiatry, China Medical University Hospital, 2 Yude Road, Taichung, 40447, Taiwan. .,Department of Public Health, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan.
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Lin KB, Lai KR, Yang NP, Wu KS, Ting HW, Pan RH, Chan CL. Trends and outcomes in the utilization of laparoscopic appendectomies in a low-income population in Taiwan from 2003 to 2011. Int J Equity Health 2015; 14:100. [PMID: 26496832 PMCID: PMC4619494 DOI: 10.1186/s12939-015-0248-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 10/19/2015] [Indexed: 11/26/2022] Open
Abstract
Background Numerous epidemiological studies have compared outcomes between laparoscopic appendectomies (LA) and open appendectomies (OA); however, few studies have assessed the efficacy of LA specifically in a low-income population (LIP). Methods We analyzed the trends in the utilization and outcomes of LA versus OA in an LIP in Taiwan using data from the National Health Insurance (NHI) Research Database. Results Steady temporal growth trends were observed for the patients who underwent LA in both the LIP and general population (GP); however, in each study year, the proportion of LIP patients who underwent LA was lower than the proportion of GP patients who underwent the procedure. The LIP patients were more susceptible to payment policies than the GP patients; thus, more attention should be paid to vulnerable patient populations when formulating and revising NHI payment policies. Compared with OAs, LAs were associated with a slightly higher rate of routine patient discharges and a lower rate of in-hospital complications (1.48 % vs. 3.76 %, p < 0.05). The rate of readmission for complications was lower in patients after LA than in patients after OA (1.64 % vs. 3.89 %, p < 0.05). The overall case-fatality rate of LIP patients who underwent LA was lower than that of those who underwent OA. LA was correlated with a significantly shorter length of hospital stay (LOS) compared with OA (3.80 ± 0.08 vs. 5.51 ± 0.11, p < 0.05). The average hospital cost for LA was slightly less than that for OA (1178 ± 13 vs. 1191 ± 19 USD, p < 0.05). A higher percentage of patients who underwent OA required an LOS longer than 14 days compared to patients who underwent LA (7.73 % vs. 1.97 %, p < 0.05). Regarding hospital costs and LOS, LA showed significant advantages over OA in the subpopulations of male patients, patients 45 years old and older, patients with Charlson Comorbidity Index (CCI) scores of two or more, and patients with complicated cases of appendicitis. Conclusion The LIP patients benefited more from the LA approach than the OA approach in the treatment of appendicitis, especially regarding LOS, in-hospital complications, in-hospital mortality, and routine discharge rates.
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Affiliation(s)
- Kai-Biao Lin
- School of Computer & Information Engineering, Xiamen University of Technology, Xiamen, 361024, China. .,Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003, Taiwan.
| | - K Robert Lai
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003, Taiwan. .,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003, Taiwan.
| | - Nan-Ping Yang
- Management Center, Keelung Hospital, Ministry of Health and Welfare, Keelung, 20147, Taiwan. .,Institute of Public Health, National Yang-Ming University, Taipei, 11221, Taiwan.
| | - Ke-Shou Wu
- School of Computer & Information Engineering, Xiamen University of Technology, Xiamen, 361024, China.
| | - Hsien-Wei Ting
- Department of Neurosurgery, Taipei Hospital, Taipei, 10002, Taiwan.
| | - Ren-Hao Pan
- Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003, Taiwan.
| | - Chien-Lung Chan
- Department of Information Management, Yuan Ze University, Taoyuan, 32003, Taiwan. .,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003, Taiwan.
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Lin KB, Lai KR, Yang NP, Chan CL, Liu YH, Pan RH, Huang CH. Epidemiology and socioeconomic features of appendicitis in Taiwan: a 12-year population-based study. World J Emerg Surg 2015; 10:42. [PMID: 26388932 PMCID: PMC4573493 DOI: 10.1186/s13017-015-0036-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 09/07/2015] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION This paper presents an epidemiologic study of appendicitis in Taiwan over a twelve-year period. An analysis of the incidence in the low-income population (LIP) is included to explore the effects of lower socioeconomic status on appendicitis. METHODS We analyzed the epidemiological features of appendicitis in Taiwan using data from the National Health Insurance Research Database (NHIRD) from 2000 to 2011. All cases diagnosed as appendicitis were enrolled. RESULTS The overall incidences of appendicitis, primary appendectomy, and perforated appendicitis were 107.76, 101.58, and 27.20 per 100,000 per year, respectively. The highest incidence of appendicitis was found in persons aged 15 to 29 years; males had higher rates of appendicitis than females at all ages except for 70 years and older. Appendicitis rates were 11.76 % higher in the summer than in the winter months. A multilevel analysis with hierarchical linear modeling (HLM) revealed that male patients, younger patients (aged ≤14 years), and elderly patients (aged ≥60 years) had a higher risk of perforated appendicitis; among adults, the incidence increased with age. Moreover, the risk of perforation was higher in patients with one or more comorbidities. LIP patients comprised 1.25 % of the total number of patients with appendicitis from 2000 to 2011. The overall incidence of appendicitis was 34.99 % higher in the LIP than in the normal population (NP), and the incidence of perforated appendicitis was 40.40 % higher in the LIP than in the NP. After multivariate adjustment, the adjusted hospital costs and length of hospital stay (LOS) for the LIP patients were higher than those for the NP patients. CONCLUSIONS Appendicitis and appendectomy in Taiwan had similar overall incidences, seasonality patterns, and declining trends compared to numerous previous studies. Compared to NP patients, LIP patients had a higher risk of appendicitis, longer LOS and higher hospital costs as a result of appendectomy.
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Affiliation(s)
- Kai-Biao Lin
- School of Computer & Information Engineering, Xiamen University of Technology, Xiamen, 361024 China.,Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003 Taiwan
| | - K Robert Lai
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003 Taiwan.,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003 Taiwan
| | - Nan-Ping Yang
- Management Center, Keelung Hospital, Ministry of Health and Welfare, Keelung, 20147 Taiwan.,Institute of Public Health, National Yang-Ming University, Taipei, 11221 Taiwan
| | - Chien-Lung Chan
- Department of Information Management, Yuan Ze University, Taoyuan, 32003 Taiwan.,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003 Taiwan
| | - Yuan-Hung Liu
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, 32003 Taiwan.,Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003 Taiwan.,Section of Cardiology, Cardiovascular Center, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Ren-Hao Pan
- Innovation Center for Big Data and Digital Convergence, Yuan Ze University, Taoyuan, 32003 Taiwan
| | - Chien-Hsun Huang
- Department of Obstetrics & Gynecology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
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