ArticleAnnals of gastroenterological surgery2023
The impact of COVID-19 for postoperative outcomes using a nationwide Japanese database of patients undergoing distal gastrectomy for gastric cancer.
Article in Annals of gastroenterological surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 18 citations in OpenAlex.
- Surgical Volume and Short-Term Outcomes After Advanced Hepatectomy in the Postpandemic Era: Analysis of the Japanese National Clinical Database (2018-2023).Annals of gastroenterological surgery · 2025Article
- Changes in surgical versus nonsurgical treatments for gastrointestinal cancers during the COVID-19 pandemic: a nationwide analysis in Japan.Surgery today · 2025Article
- Nationwide Trends in Short-Term Outcomes After Low Anterior Resection for Rectal Cancer: A Pre- and Post-COVID-19 Analysis From the Japanese National Clinical Database, 2018-2023.Annals of gastroenterological surgery · 2025Article
- Projection of future demand for non-cancerous gastrointestinal surgery in Japan: challenges and workforce planning in an aging society.Surgery today · 2025Article
- Impacts of COVID-19 pandemic on short-term outcomes of low anterior resection performed in hospitals with different surgical volumes.Annals of gastroenterological surgery · 2025Article
- Analysis of surgical volume and short-term outcomes for upper gastrointestinal cancer post-COVID-19: Evidence from a nationwide Japanese database.Annals of gastroenterological surgery · 2025Article
- Effects of the COVID-19 pandemic on surgical treatment for thoracic malignant tumor cases in Japan: a national clinical database analysis.Surgery today · 2025Article
- Association between the COVID-19 pandemic and short-term outcomes after esophagectomy for esophageal cancer in facilities with and without board-certified esophageal surgeons: a nationwide retrospective cohort study.Esophagus : official journal of the Japan Esophageal Society · 2025Article
- Effects of the COVID-19 pandemic on short-term postoperative outcomes of emergency surgery for gastroduodenal perforation: A nationwide study in Japan based on the National Clinical Database.Annals of gastroenterological surgery · 2024Article
- Impact of SARS-CoV-2 infection on short-term postoperative outcomes after gastroenterological cancer surgery using data from a nationwide database in Japan.Annals of gastroenterological surgery · 2024Article
- Impact of the COVID-19 pandemic on short-term outcomes after pancreaticoduodenectomy for pancreatic cancer: A retrospective study from the Japanese National Clinical Database, 2018-2021.Annals of gastroenterological surgery · 2024Article
- A comprehensive summary of the impact of the COVID era on various gastrointestinal cancers.Annals of gastroenterological surgery · 2024Article
- Assessing the Influence of the COVID-19 Pandemic on Gastric Cancer Mortality Risk.Journal of clinical medicine · 2024Article
- The impact of COVID-19 for postoperative outcomes using a nationwide Japanese database of patients undergoing distal gastrectomy for gastric cancer.Annals of gastroenterological surgery · 2023Article
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Authors and funding
15 authors at 8 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The coronavirus disease 2019 (COVID-19) pandemic had resulted in either failure to provide required medical resources or delayed treatment for gastric cancer patients. This study aimed to investigate the impact of COVID-19 on the incidence of postoperative complications using a nationwide Japanese database of patients undergoing distal gastrectomy for gastric cancer. Methods: We collected the data of patients who underwent distal gastrectomy from January 2018 to December 2021 from the National Clinical Database (NCD), a web-based surgical registration system in Japan. The number of surgical cases, the use of intensive care units, and the incidence of morbidity per month were analyzed. We also calculated the standardized mortality ratio (SMR), defined as the ratio of the number of observed patients to the expected number of patients calculated using the risk calculator established in the NCD, for several morbidities, including pneumonia, sepsis, 30-day mortality, and surgical mortality. Results: A decrease of 568 gastrectomies was observed from April 2020 to May 2020. Although the absolute number of patients admitted to intensive care units had declined since 2020, the proportion of patients admitted to the ICU did not change before and after the pandemic. Mortality and critical morbidity (such as pneumonia and sepsis) rates were not worse during the pandemic compared to pre-pandemic periods per the SMR. Conclusions: Surgical management was conducted adequately through the organized efforts of the entire surgery department in our country even in a pandemic during which medical resources and staff may have been limited.
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