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preoperative olfactory training to reduce the incidence of postoperative delirium in cardiopulmonary bypass cardiac surgery,A prospective randomized controlled trial

preoperative olfactory training to reduce the incidence of postoperative delirium in cardiopulmonary bypass cardiac surgery,A prospective randomized controlled trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300077593
Enrollment
Unknown
Registered
2023-11-14
Start date
2023-11-14
Completion date
Unknown
Last updated
2023-11-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

POD

Interventions

olfactory training:preoperative olfactory training
control:None

Sponsors

Sun Yat-sen Memorial Hospital, Sun Yat-sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1) Patients undergoing cardiac surgery under general anesthesia; 2)18 years old = age =85 years old, gender is not limited, ASA grade =III; 3) No recent history of surgery, operation time =2 hours. 4) Can communicate normally, be able to cooperate and complete cognitive function tests. MMSE score >17 points. 5) Several family members of the patient are aware and willing to cooperate and participate.

Exclusion criteria

Exclusion criteria: 1) Emergency surgery; 2) People with brain diseases or a history of brain diseases such as cerebral infarction, stroke, etc.; 3) A history of neurological and psychological disorders, including Alzheimer's disease, Parkinson's disease, psychosis, etc.; 4) Severe hearing or vision impairment; 5) Those who have taken psychotropic drugs or abused psychotropic drugs within 1 month; 6) Rhinitis, sinusitis, previous nasal surgery history, nasal congestion, upper respiratory tract infection in the past two weeks and other diseases that may affect olfactory function. 7) Patients allergic to pollen and olfactory agents. 8) Patients who cannot cooperate or refuse to sign informed consent 9) patients with Alzheimer's disease and Parkinson's disease.

Design outcomes

Primary

MeasureTime frame
the incidence of postoperative deliirum;

Secondary

MeasureTime frame
Severity of postoperative delirium;TDI score of olfactory function 7 days before and after surgery;Blood molecular biomarkers;Inflammatory indicators;

Countries

China

Contacts

Public ContactYanni Fu

Sun Yat-sen Memorial Hospital, Sun Yat-sen University

fuyanni@mail.sysu.edu.cn+86 136 0979 8392

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026