This study evaluates elective surgeries that were cancelled on the scheduled day of operation. Same-day surgical cancellations may cause emotional stress for patients, inefficient use of hospital resources, and increased health care costs.

The aim of this observational study is to analyze the reasons for same-day cancellations and to assess their impact on patients, hospital workflow, and costs. Patient anxiety levels after cancellation will be evaluated using standardized questionnaires. The findings of this study may help improve perioperative planning and reduce preventable surgical cancellations.

This prospective observational study was conducted at the operating rooms of Elazığ Fethi Sekin City Hospital. The study included all elective surgical procedures that were cancelled on the scheduled day of operation for any reason after approval by the local ethics committee. Data were collected over a six-month period.

Demographic characteristics of patients, planned surgical procedures, surgical departments, and reasons for cancellation were recorded using patient interviews, medical records, and the hospital information system. Cancellations were categorized as patient-related, hospital-related, or surgery team-related.

The impact of same-day cancellations on hospital resources and costs was evaluated by estimating operating room idle time, personnel costs, unused equipment and medications, bed occupancy, preoperative preparation costs, and additional post-cancellation diagnostic or consultation expenses. Cost calculations were based on official Ministry of Health reimbursement tariffs.

Following cancellation and transfer back to the ward, patients were assessed face to face for anxiety using the State-Trait Anxiety Inventory. The results of this study aim to provide data to improve perioperative planning, optimize hospital resource utilization, and reduce preventable elective surgery cancellations.

This study was registered retrospectively after study completion due to an administrative delay in trial registration.

Inclusion Criteria:

• Elective surgical procedures cancelled on the scheduled day of operation for any reason.

Exclusion Criteria:

• Patients who could not be contacted on the day of cancellation.

Patients with insufficient medical or administrative data in their records.

Patients scheduled for elective surgery whose procedures were cancelled on the scheduled day of operation at Elazığ Fethi Sekin City Hospital