QoR-9 AS predicTor of postopErative Complications

Study Overview
=================
Brief Summary
-----------------
Aim of the study is to evaluate, whether the self administered quality of recovery (QoR-9) questionnaire can predict postoperative complications after non-cardiac surgery and whether preoperative risk estimates can be improved by implementation of the QoR-9 as postoperative screening tool.

Detailed Description
-----------------
The QoR-9 as established patient-centred outcome measure, which is validated in German language, is surveyed preoperatively, as well as on postoperative day 1 and 3 after non-cardiac surgery. We showed in a pilot study that this score reveals a high sensitivity to detect patients with a disturbed health status through a detailed and time-consuming physical examination.We want to evaluate if short screening tools can be used to categorize patients with increased risk for developing postoperative complicationsTherefore, patients undergoing non-cardiac surgery are informed preoperatively about the study and written informed consent is obtained. Afterwards, the QoR-9, as well as validated preoperative risk scores are obtained. Relevant intra- and immediate postoperative factors are recorded. On postoperative day 1 and 3 patients perform the QoR-9. Postoperative complications during hospital stay are determined using the Clavien Dindo score by searching the patients 'record. After 6 months the patients are contacted via telephone and the QoR-9 is obtained. 6-months mortality is determined.

Official Title
-----------------
QoR-9 AS predicTor of postopErative Complications

Conditions
-----------------
Postoperative Complications

Intervention / Treatment
-----------------
* Diagnostic Test: QoR 9 Questionnaire


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: written informed consent undergoing non-cardiac surgery good knowledge of German language Exclusion Criteria: blind out-patient pregnant psychiatric disturbance that preclude cooperation decline to participate

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: QoR 9 Questionnaire|The QoR-9 as established patient-centred outcome measure, which is validated in German language, is surveyed preoperatively, as well as on postoperative day 1 and 3 after non-cardiac surgery. Postoperative complications are evaluated using the Clavien-Dindo Score. A follow-up is intended after 6 months. Preoperative risk is estimated using the ASA (American Society of Anesthesiologists) and the POSPOM (Preoperative Score to predict postoperative mortality) score.|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Postoperative Complications evaluated by Clavien- Dindo Score | Nine domains are evaluated: Pulmonary, infectious, renal, gastrointestinal, cardiovascular, neurological, wound, haematological and pain. Each domain is graded between grade I and V (death of a patient). | Date of Surgery till Discharge from Hospital (approximately 30 days) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| hospital mortality | Rate of Mortality among study patients | Date of Surgery till Discharge from Hospital (approximately 30 days) | 
| 6-month mortality | Mortality among patients 6 months after surgery | 6 month after date of surgery | 
| Superiority of QoR-9 questionnaire against common Outcome Score | Comparison of different risk estimates and Outcome Scores | Date of surgery until 6 month follow-up | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Outcome, Postoperative Complications, Failure to rescue, QoR-9, patient-centred questionnaire