ArticleSurgery today2021
Surgical volume reduction and the announcement of triage during the 1st wave of the COVID-19 pandemic in Japan: a cohort study using an interrupted time series analysis.
Article in Surgery today, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 33 citations in OpenAlex.
- Nationwide trends in cardiac anesthesia requiring cardiopulmonary bypass and intraoperative transesophageal echocardiography use in Japan: a claims-based analysis, 2019-2023.Journal of anesthesia · 2026Article
- Changes in Referral Rates After the Mandate of Charging Additional Fees for Non-referral First Visits: A Controlled Interrupted Time-series Analysis.Journal of epidemiology · 2026Article
- Evaluating the Effect of Diagnosis-Intervention Packet (DIP) Reform in China on Hospitalization Outcomes for Patients with Chronic Obstructive Pulmonary Disease with Special Reference to M City.Healthcare (Basel, Switzerland) · 2026Article
- Spinal Surgery in National Emergencies: Lessons from a Pandemic Era of Postponed and Ultimately Cancelled Operations.Indian journal of orthopaedics · 2025Article
- Impact of the COVID-19 pandemic on continuity of medical treatment for patients with chronic diseases in Japan: a retrospective cohort analysis.BMC health services research · 2025Article
- Impact of COVID-19 Pandemic on Hand Surgery Volume in Japan.Journal of clinical medicine · 2025Article
- Impact of COVID-19 on orthopedic trauma patients from 2021 to 2022 when restrictions were lifted, compared with the pre-pandemic period.Journal of orthopaedic surgery and research · 2025Article
- Impact of the coronavirus disease 2019 pandemic on the number of colorectal cancer surgeries performed: analysis of a nationwide inpatient database in Japan.Surgery today · 2025Article
- Clinical epidemiology of the endoscopic, laparoscopic, and surgical resection of malignant gastric tumors in Japan, 2014-2021: a retrospective study using open data from a national claims database.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025Observational
- Impact of Coronavirus Disease 2019 on Inpatient Palliative Care Services in Japan: A Hybrid Time-Series Analysis Before, During, and After the Pandemic Using 10-Year Claims Data.Palliative medicine reports · 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
- Effects of the COVID-19 pandemic on short-term postoperative outcomes for colorectal perforation: A nationwide study in Japan based on the National Clinical Database.Annals of gastroenterological surgery · 2024Article
- The Impact of the COVID-19 Pandemic on Bell's Palsy and Ramsay-Hunt Syndrome: A Multicenter Retrospective Study.Journal of Korean medical science · 2024Article
- Glaucoma progression due to refraining examination amid the pandemic of COVID-19.International ophthalmology · 2024Article
- Decreased Positive Fecal Occult Blood Tests and Delayed Medical Presentation for Colorectal Cancer during the Initial COVID-19 Pandemic Period: A Single-center Experience.Journal of the anus, rectum and colon · 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
- The effect of COVID-19 pandemic on perioperative factors: data from the Swedish Perioperative Register.Perioperative medicine (London, England) · 2023Article
- The clinical impact of COVID-19 on endoscopic surgery in Japan: Analysis of data from the National Clinical Database.Annals of gastroenterological surgery · 2023Article
- Impact of coronavirus disease 2019 pandemic on breast cancer surgery using the National Database of Japan.Scientific reports · 2023Article
- Delayed Presentation and Referral Time from General Practitioners Contribute to Increased Complicated Appendicitis during the Initial COVID-19 Pandemic Period in Japan.Journal of the anus, rectum and colon · 2023Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
purposeThe coronavirus disease (COVID-19) pandemic has caused unprecedented challenges for surgical staffs to minimize exposure to COVID-19 or save medical resources without harmful patient outcomes, in accordance with the statement of each surgical society. No research has empirically validated declines in surgical volume in Japan, based on the usage of surgical triage. We aimed to identify whether the announcement of surgical priorities by each Japanese surgical society may have affected the surgical volume decline during the 1st wave of this pandemic.
methodsWe extracted 490,719 available cases of patients aged > 15 years who underwent elective major surgeries between July 1, 2018, and June 30, 2020. After the categorization of surgical specialities, we calculated descriptive statistics to compare the year-over-year trend and conducted an interrupted time series analysis to validate the decline of each surgical procedure.
resultsMonthly surgical cases of eight surgical specialities, especially ophthalmology and ear/nose/throat surgeries, decreased from April 2020 and reached a minimum in May 2020. An interrupted time series analysis showed no significant trends in oncological and critical surgeries.
conclusionNon-critical surgeries showed obvious and statistically significant declines in case volume during the 1st wave of the COVID-19 pandemic according to the statement of each surgical society in Japan.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.