Effectiveness and Costs of a Digital Versus Face-to-face Preoperative Assessment Clinic

Study Overview
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Brief Summary
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A digital preoperative assessment clinic provides a solution for the increasing demand and declining performance on waiting times for surgery, while conducting assessments to a high standard. However, it remains unclear if a digital preoperative assessment is as effective as a face-to-face clinic in terms of patient health outcomes and experience compared. This study aimed to compare quality or recovery and overall patient experience in patients undergoing a digital preoperative assessment versus regular face-to-face consultations.

Detailed Description
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Study design This is a randomized (1:1), open label, noninferiority trial performed at 2 locations of a Dutch, urban, secondary care hospital. Aims demonstrate the noninferiority of a digital PAC, in terms of postoperative quality of recovery, compared with a face-to-face PAC, and demonstrate if there is a difference in preoperative anxiety, decisional conflict, patient satisfaction, morbidity, mortality, American Society of Anesthesiologists score (ASA) reliability, and costs. Study population Participants aged 18 and older admitted to the PAC department with a request of undergoing surgery were evaluated for study enrollment. The trial inclusion criteria are age 18 and older, ASA classification I to IV, fluent in Dutch, the availability of an online personal computer at home, and able to give informed consent. Exclusion criteria are pregnant women, and patients undergoing a non-standard pre-operative assessment procedure which included breast- and gastrointestinal oncology and cardiac procedures. Outcomes Primary: Quality of recovery 40 (QOR-40) scale assessed at 48 hours postoperative. Secondary outcomes (Measured 1 day prior to surgery): State-Trait Anxiety Inventory (STAI) form Y1 (also at baseline) Decisional conflict scale (DCS) Patient satisfaction with information (NR 1-10) Patient satisfaction with the screening process (NR 1-10) Measured during the study ASA reliability Postoperative length of stay 30-day complications 30-day mortality preoperative anesthetic assessment and surgery cancelation loan costs Sample size This sample size calculation will be based on noninferiority tests for the continuous primary outcome quality of recovery score (QoR-40) measured at 48 hours after surgery. The noninferiority margin is set at -6 points, which is based on a study by Myles et al. who found a minimal clinical important difference (MCID) of 6.3 for the QOR-40 questionnaire, which was subsequently rounded down. Based on this study, the expected QoR-40 score was177 with a standard deviation of 16 on postoperative day 2 for the control group (face-to-face consultations). A total of 224 patients, 112 in each group, would yield a power of 80%, using a one-sided 97,5% confidence interval (CI), to establish whether a digital PAC is noninferior compared to a face-to-face PAC. With an estimated dropout rate of 25%, a total of 299 patients (150 patients per group) need to be enrolled. Analysis Data will be analyzed as per-protocol. A linear mixed effects model will be conducted with study group and QOR-baseline as fixed effects and treating specialism as random effect. The primary outcome of QoR-40 will be presented as the mean difference between study groups (digital screening - face-to-face screening) with the upper and lower bound of the 95% CI and will be labelled non-inferior when the non-inferiority margin of -6 lies outside the lower bound of the 95% CI. CIs will be calculated using linear regression analysis.

Official Title
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Effectiveness and Costs of a Digital Versus Face-to-face Preoperative Assessment Clinic: a Non-inferiority Trial

Conditions
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Surgery

Intervention / Treatment
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* Other: Digital preoperative assessment
* Other: Face-to-face preoperative assessment


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients to the PAC department with a request of undergoing surgery 18 and older ASA classification I to IV general surgery (vascular, traumatic, gastrointestinal, oncological), gynecology, otolaryngology, neurosurgery, plastic surgery, orthopedics, and ophthalmology. fluent in Dutch the availability of an online personal computer at home and able to give informed consent. Exclusion Criteria: pregnant women patients undergoing a non-standard pre-operative assessment procedure which included breast- and gastrointestinal oncology and cardiac procedures.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Screening
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Face-to-face preoperative assessment group<br>The face-to-face screening consist of two 20-minute consecutive consultations with a nurse and subsequently an anesthesiologist or PA. The nurse obtains basic patient health information, provides information on the upcoming hospital admission, and gives advice in lifestyle procedures around the surgery. The physician assesses the patient's health status based on co-morbidities, medication use, previous surgery, and lifestyle habits to predict preoperative risks and determine the optimal anesthetic technique. Additional diagnostics, such as blood tests or electrocardiogram, can be ordered and optional anesthetic techniques will subsequently be presented and discussed with the patient, after which informed consent will be obtained. | Other: Face-to-face preoperative assessment<br>* a face-to-face preoperative assessment for patient requiring surgery<br>|
| Active Comparator: Digital preoperative assessment group<br>Patients in the digital preoperative assessment group are asked to complete an electronic screening questionnaire through the digital patient portal of the hospital. The questionnaire was designed by the anesthetic department physicians and consisted of 50 health related questions. Through the same digital patient portal, patients have access to animated instructional videos that provides information on anesthetic techniques, preoperative lifestyle advises and procedures around the upcoming surgery. The videos can be reviewed at any desired moment in time. A telephone appointment is scheduled solemnly to decide on the anesthesia technique and obtain informed consent since this process was technically not available in the electronic portal. Physicians were thoroughly instructed not to provide more information or answer questions. Patients are instructed to complete the electronic screening questionnaire and assess the animated videos before the scheduled appointment with the physician. | Other: Digital preoperative assessment<br>* a digital preoperative assessment for patient requiring surgery<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Quality of recovery 40 (QOR-40) scale | The QoR-40 is a validated composite endpoint that can be used to evaluate anesthetic or surgical procedure. The questionnaire consists of 40 questions on a 5-point Likert scale that provides a global score and sub scores across five dimensions: patient support, comfort, emotions, physical independence, and pain. The highest achievable score, indicating maximum quality of recovery, is 200. The lowest score, indicating worst quality of recovery, is 40. The questions are related to the quality of recovery over the past 24 hours. | Measured 48 hours postoperative | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| State-Trait Anxiety Inventory (STAI) form Y1 | A psychological inventory consisting of 40 self-report items on a 4-point Likert scale. The STAI measures two types of anxiety - state anxiety and trait anxiety. Higher scores are positively correlated with higher levels of anxiety. The range of possible scores of the STAI varies from a minimum score of 20 (minimum anxiety) to a maximum score of 80 (maximum anxiety) | Measured at 24 hours preoperative | 
| Decisional conflict scale (DCS) | The decisional conflict scale (DCS) measures personal perceptions of: uncertainty in choosing options; modifiable factors contributing to uncertainty such as feeling uninformed, unclear about personal values and unsupported in decision making; and effective decision making (in full version) such as feeling the choice is informed, values-based, likely to be implemented and expressing satisfaction with the choice. Scores range from 0, no decisional conflict, to 100, extremely high decisional conflict. | Measured at 24 hours preoperative | 
| Patient satisfaction with the information | On a NR-scale from 1-10. 1 is least satisfied, 10 is most satisfied. | Measured at 24 hours preoperative | 
| Patient satisfaction with the entire screening process | On a NR-scale from 1-10. 1 is least satisfied, 10 is most satisfied. | Measured at 24 hours preoperative | 
| ASA score reliability | Reliability of the ASA score administered by the physician during the PAC and the ASA score administered by the physician just before surgery. Reliability is presented as quadratic weighted kappa values: 0 is low agreement, 1 is perfect agreement. | During the PAC and just before surgery (1-2 hours) | 
| Postoperative length of stay | in days | until 30 days after surgery | 
| 30-day complications and mortality | Complications due to surgery or anesthesia are registered, as well as 30-day mortality | until 30 days after surgery | 
| Cancelation of PAC appointment or cancelation of surgery | Number of PAC appointment cancellations and cancelled surgeries. Each cancelled appointment of surgery is registered in the medical record an retrospectively assessed. | This is measured from moment of randomization to moment of surgery, which is on average 2 months from randomization. | 
| Loan costs | Difference in loan costs of nurses and physicians | until 30 days after surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Preoperative assessment clinic, Preoperative anesthetic screening, Patients requiring surgery, Surgical patients