Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis

Abstract Background Whether hypokalemia can affect the short-term outcomes of CRC patients after radical surgery remains unclear. The purpose of this study was to investigate the impact of preoperative hypokalemia on the short-term outcomes for colorectal cancer (CRC) patients who underwent radical...

Full description

Bibliographic Details
Main Authors: Bin Zhang, Xiao-Yu Liu, Bing Kang, Chao Yuan, Zi-Wei Li, Zheng-Qiang Wei, Dong Peng
Format: Article
Language:English
Published: BMC 2022-08-01
Series:BMC Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12885-022-09950-1
_version_ 1811342817005404160
author Bin Zhang
Xiao-Yu Liu
Bing Kang
Chao Yuan
Zi-Wei Li
Zheng-Qiang Wei
Dong Peng
author_facet Bin Zhang
Xiao-Yu Liu
Bing Kang
Chao Yuan
Zi-Wei Li
Zheng-Qiang Wei
Dong Peng
author_sort Bin Zhang
collection DOAJ
description Abstract Background Whether hypokalemia can affect the short-term outcomes of CRC patients after radical surgery remains unclear. The purpose of this study was to investigate the impact of preoperative hypokalemia on the short-term outcomes for colorectal cancer (CRC) patients who underwent radical CRC surgery using propensity score matching (PSM). Methods We retrospectively enrolled consecutive CRC patients from Jan 2011 to Dec 2021 in a single-center hospital. Hypokalemia was defined as a serum potassium concentration < 3.5 mmol/L. The short-term outcomes were compared between the hypokalemia group and the normal blood potassium group. In addition, univariate and multivariate logistic regression analyses were conducted to identify independent risk factors for overall complications. Results A total of 6183 CRC patients who underwent radical surgery were included in this study, of whom 390 (6.3%) patients were diagnosed with hypokalemia before surgery. After 1:1 ratio PSM, there were 390 patients in the hypokalemia group and in the normal potassium group. No significant difference was found between the two groups after PSM in terms of baseline information (p > 0.05). Regarding short-term outcomes, the hypokalemia group had a longer hospital stay (p = 0.028), a higher proportion of overall complications (p = 0.048) and a higher incidence of postoperative pneumonia (p = 0.008) after PSM. Moreover, hypokalemia (p = 0.036, OR = 1.291, 95% CI = 1.017–1.639) was an independent risk factor for overall complications. Conclusion Preoperative hypokalemia could increase complications after CRC surgery and prolong the hospital stay. Moreover, preoperative hypokalemia was an independent risk factor for overall complications.
first_indexed 2024-04-13T19:18:45Z
format Article
id doaj.art-24aa9f6a016f4af38c6a8101c281bb06
institution Directory Open Access Journal
issn 1471-2407
language English
last_indexed 2024-04-13T19:18:45Z
publishDate 2022-08-01
publisher BMC
record_format Article
series BMC Cancer
spelling doaj.art-24aa9f6a016f4af38c6a8101c281bb062022-12-22T02:33:36ZengBMCBMC Cancer1471-24072022-08-012211810.1186/s12885-022-09950-1Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysisBin Zhang0Xiao-Yu Liu1Bing Kang2Chao Yuan3Zi-Wei Li4Zheng-Qiang Wei5Dong Peng6Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityDepartment of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityDepartment of Clinical Nutrition, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityDepartment of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityDepartment of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityDepartment of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical UniversityAbstract Background Whether hypokalemia can affect the short-term outcomes of CRC patients after radical surgery remains unclear. The purpose of this study was to investigate the impact of preoperative hypokalemia on the short-term outcomes for colorectal cancer (CRC) patients who underwent radical CRC surgery using propensity score matching (PSM). Methods We retrospectively enrolled consecutive CRC patients from Jan 2011 to Dec 2021 in a single-center hospital. Hypokalemia was defined as a serum potassium concentration < 3.5 mmol/L. The short-term outcomes were compared between the hypokalemia group and the normal blood potassium group. In addition, univariate and multivariate logistic regression analyses were conducted to identify independent risk factors for overall complications. Results A total of 6183 CRC patients who underwent radical surgery were included in this study, of whom 390 (6.3%) patients were diagnosed with hypokalemia before surgery. After 1:1 ratio PSM, there were 390 patients in the hypokalemia group and in the normal potassium group. No significant difference was found between the two groups after PSM in terms of baseline information (p > 0.05). Regarding short-term outcomes, the hypokalemia group had a longer hospital stay (p = 0.028), a higher proportion of overall complications (p = 0.048) and a higher incidence of postoperative pneumonia (p = 0.008) after PSM. Moreover, hypokalemia (p = 0.036, OR = 1.291, 95% CI = 1.017–1.639) was an independent risk factor for overall complications. Conclusion Preoperative hypokalemia could increase complications after CRC surgery and prolong the hospital stay. Moreover, preoperative hypokalemia was an independent risk factor for overall complications.https://doi.org/10.1186/s12885-022-09950-1Colorectal cancerShort-term outcomesHypokalemiaPropensity score matchingSurgery
spellingShingle Bin Zhang
Xiao-Yu Liu
Bing Kang
Chao Yuan
Zi-Wei Li
Zheng-Qiang Wei
Dong Peng
Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
BMC Cancer
Colorectal cancer
Short-term outcomes
Hypokalemia
Propensity score matching
Surgery
title Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
title_full Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
title_fullStr Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
title_full_unstemmed Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
title_short Preoperative hypokalemia can increase complications after colorectal cancer surgery: a propensity score matching analysis
title_sort preoperative hypokalemia can increase complications after colorectal cancer surgery a propensity score matching analysis
topic Colorectal cancer
Short-term outcomes
Hypokalemia
Propensity score matching
Surgery
url https://doi.org/10.1186/s12885-022-09950-1
work_keys_str_mv AT binzhang preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT xiaoyuliu preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT bingkang preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT chaoyuan preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT ziweili preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT zhengqiangwei preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis
AT dongpeng preoperativehypokalemiacanincreasecomplicationsaftercolorectalcancersurgeryapropensityscorematchinganalysis