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KMID : 1141920200360050311
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Annals of Coloproctology
2020 Volume.36 No. 5 p.311 ~ p.315
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Increased Risk of Neoplasms in Adult Patients Undergoing Interval Appendectomy
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Son Jung-Tak
Park Yong-Jun
Lee Sung-Ryol
Kim Hyung-Ook
Jung Kyung-Uk
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Abstract
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Purpose: The low rate of recurrent appendicitis after initial nonsurgical management of complicated appendicitis supports the recently implemented strategy of omitting routine interval appendectomy. However, several reports have suggested an increased incidence rate of neoplasms in these patients. We aimed to identify the risk of neoplasms in the population undergoing interval appendectomy.
Methods: This study retrospectively analyzed consecutive cases of appendicitis that were treated surgically between January 2014 and December 2018 at a single tertiary referral center. Patients were divided into 2 groups depending on whether they underwent immediate or interval appendectomy. Demographics and perioperative clinical and pathologic parameters were analyzed.
Results: All 2,013 adults included in the study underwent surgical treatment because of an initial diagnosis of acute appendicitis. Of these, 5.5% (111 of 2,013) underwent interval appendectomy. Appendiceal neoplasm was identified on pathologic analysis in 36 cases (1.8%). The incidence of neoplasm in the interval group was 12.6% (14 of 111), which was significantly higher than that of the immediate group (1.2% [22 of 1,902], P < 0.001).
Conclusion: The incidence rate of neoplasms was significantly higher in patients undergoing interval appendectomy. These findings should be considered when choosing treatment options after successful nonsurgical management of complicated appendicitis.
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KEYWORD
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Appendicitis, Interval appendectomy, Neoplasms
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