Analysis of factors affecting the length of stay in the intensive care unit (ICU) among the aged patients with general anesthesia and non-cardiac surgery

ISRCTN ISRCTN14901355
DOI https://doi.org/10.1186/ISRCTN14901355
Secondary identifying numbers S2024-555-01, NCRCG-PLAGH-2023003
Submission date
23/12/2024
Registration date
02/01/2025
Last edited
30/12/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
This study aims to understand why some older patients need to stay longer in the intensive care unit (ICU) after surgery. ICU stays can be very expensive, and this research looks at different factors related to the patient and the surgery that might cause longer stays.

Who can participate?
Participants in this study must meet three criteria:
They are younger than 60 years old.
They did not have general anesthesia or heart surgery.
Their stay in the ICU was less than 4 hours.

What does the study involve?
Participants will have their medical data reviewed to see if there are any common factors that lead to longer ICU stays. This involves looking at their health records and the details of their surgeries.

What are the possible benefits and risks of participating?
There are no direct benefits or risks to participants since the study only involves reviewing existing medical records. However, the findings could help improve care for future patients by identifying ways to reduce ICU stays.

Where is the study run from?
National Research Institute for Family Planning and Chinese PLA General Hospital (China)

When is the study starting and how long is it expected to run for?
March 2024 to October 2024.

Who is funding the study?
National Clinical Research Center for Geriatric Diseases (China)

Who is the main contact?
Prof. MAO Qunxia at flysolo_mqx@126.com
Prof. Gao Lingen at gaolinggen@163.com

Contact information

Prof Qunxia Mao
Principal Investigator

226, Building 12, Dahuisi Road, Haidian District
Beijing
100081
China

ORCiD logoORCID ID 0009-0005-5817-2651
Phone +86 13001272802
Email flysolo_mqx@126.com
Prof Linggen Gao
Principal Investigator

28 Fuxing Road, Haidian District
Beijing
100000
China

Phone +86 15801612879
Email gaolinggen@163.com
Miss Yujia Zhu
Scientific

233, Building 12, Dahuisi Road, Haidian District
Beijing
100081
China

ORCiD logoORCID ID 0009-0002-1016-727X
Phone +86 15756487837
Email yjzdoreen@163.com
Mr Lei Chen
Public

28 Fuxing Road, Haidian District
Beijing
100000
China

Phone +86 13811332489
Email chenleighcpl@163.com

Study information

Study designRetrospective observational case control study
Primary study designObservational
Secondary study designCase-control study
Study setting(s)Hospital, University/medical school/dental school
Study typeOther
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleAnalysis of factors affecting the length of stay in the ICU among the aged patients with general anesthesia and non-cardiac surgery
Study hypothesisThis study investigated the contributions of patient-related and procedure-related factors in prolonging the length of stay in the ICU (ICU LOS) among the aged with general anesthesia and non-cardiac surgery.
Ethics approval(s)

Approved 01/01/2023, Medical ethics committee of PLA General Hospital (28 Fuxing Road, Haidian District, Beijing, 100853, China; +86 10 6693 7166; jfjzyygw@163.com), ref: S2024-555-01

ConditionAnalysis of factors affecting the length of stay in the ICU among the aged patients with general anesthesia and non-cardiac surgery
InterventionThe aged patients undergoing general anesthesia and non-cardiac surgery (2007 -2020) from a hospital, who aged over 70 years will be enrolled. Patient data from a hospital between December 2007 and June 2020 will be used in this study. Patient-related and procedure-related traits of patients were collected and are presented as continuous or categorical variables. The continuity variables included age, ICU admission and discharge times, laboratory tests (i.e. white blood cell count, mean erythrocyte hemoglobin, mean erythrocyte hemoglobin concentration, gammaglutamyl transferase level, urobilinogen level, urea level, alanine aminotransferase level, total bilirubin level, prealbumin level). Categorical variables included patient gender, surgical methods, pathological diagnoses, and ultrasound examinations.
Intervention typeOther
Primary outcome measureLength of stay in the ICU (LOS), which was calculated as the difference between ICU admission and discharge times measured using patient records
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date01/03/2024
Overall study end date09/10/2024

Eligibility

Participant type(s)Patient
Age groupSenior
Lower age limit70 Years
SexBoth
Target number of participants550
Total final enrolment546
Participant inclusion criteria1. Patients undergoing general anesthesia and non-cardiac surgery (2007 -2020) from a hospital, who are aged over 70 years
2. The operation method was general anesthesia and non-cardiac surgery
3. Patients stayed in the ICU for more than 4 hours
Participant exclusion criteriaDoes not meet inclusion criteria
Recruitment start date06/12/2007
Recruitment end date17/07/2020

Locations

Countries of recruitment

  • China

Study participating centres

National Research Institute for Family Planning
No. 12, Dahuisi Road, Haidian District
Beijing
100081
China
Chinese PLA General Hospital
No. 28, Fuxing Road, Haidian District
Beijing
100000
China

Sponsor information

Chinese PLA General Hospital
Hospital/treatment centre

No. 28, Fuxing Road, Haidian District
Beijing
100853
China

Phone +86 15801612879
Email gaolinggen@163.com
Website http://www.301hospital.com.cn/en2012/web/Introduction.html
ROR logo "ROR" https://ror.org/04gw3ra78
National Research Institute for Family Planning
Research organisation

No. 12, Dahuisi Road, Haidian District
Beijing
100081
China

Phone +86 13001272802
Email flysolo_mqx@126.com

Funders

Funder type

Government

National Clinical Research Center for Geriatric Diseases

No information available

Results and Publications

Intention to publish date01/03/2025
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe dataset for this study will not be made available due to the sensitive nature of the patient information it contains. It is protected by confidentiality agreements and ethical guidelines. Although informed consent was obtained from participants, it specifically prohibits the sharing or publication of identifiable patient data in any public forum or setting, in accordance with privacy laws and institutional ethical standards.

Editorial Notes

30/12/2024: Study's existence confirmed by the medical ethics committee of PLA General Hospital.