Immediate Post-operative Recovery After Regional vs. General Anesthesia

Study Overview
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Brief Summary
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Early post-anesthesia status of patients emerging from surgery encompasses vital respiratory and hemodynamic parameters as well as subjective signs of well-being such as absence of nausea, vomiting and a low pain level. This investigation intends to compare the rate of postoperative complications in the 2 groups from pair matched patient records after regional anesthesia with otherwise similar patients after general anesthesia.

Detailed Description
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It is still unclear whether the immediate post-operative condition of patients after surgery and anesthesia is dependent on the basic anesthesia technique (General vs. regional anesthesia). The patients' post-anesthesia presentation encompasses vital respiratory and hemodynamic parameters as well as subjective signs of well-being such as absence of nausea, vomiting and a low pain level. By pair matching of patient records after regional anesthesia with otherwise similar patients after general anesthesia (control group), the rate of postoperative complications in the 2 groups will be compared. The results of this investigation will help to answer what is the difference in complication rates and wellbeing of patients depending on their previous anesthesia. The results of this study will Show which basic anesthesia technique has more or less early complications.

Official Title
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Immediate Post-operative Outcome After Regional vs. General Anesthesia

Conditions
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Outcome

Intervention / Treatment
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* Other: Data mining from records


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Records from regional anesthesia cases on adults which have quality control assessment data, plus the same number of matched pairs who had general anesthesia. Exclusion Criteria: Cases with incomplete quality control assessment data.

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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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Regional Anesthesia<br>Hospital records from patients who have undergone surgery in regional anesthesia. | Other: Data mining from records<br>* The relevant data for this investigation is extracted from the patient records database as well as from the assessment results of the ongoing quality control process that were collected by the nursing staff of the postoperative recovery units.<br>|
| General Anesthesia<br>Hospital records from patients who have undergone surgery in General anesthesia. | Other: Data mining from records<br>* The relevant data for this investigation is extracted from the patient records database as well as from the assessment results of the ongoing quality control process that were collected by the nursing staff of the postoperative recovery units.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Postoperative complications during inhospital stay up to 30 days | Number participants who had one or more cardiovascular events up to discharge or 30 days | 1 March to 30 November 2017 | 
| Postoperative complications during inhospital stay up to 30 days (PONV) - Duration of pain (VAS > 3) episodes in hours; days up to discharge or max. 30 days | Number of PONV episodes up to discharge or max. 30 days Duration of PONV episodes in days; hours up to discharge or max. 30 days | 1 March to 30 November 2017 | 
| Postoperative complications during inhospital stay up to 30 days (pain) | Duration of pain (VAS > 3) episodes in hours; days up to discharge or max. 30 days | 1 March to 30 November 2017 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Length of hospital stay | Length of hospital stay in days up to discharge or max. 30 days | 1 March to 30 November 2017 | 
| Postoperative mortality | In-patient postoperative mortality (yes or no up to 30 days) | 1 March to 30 November 2017 | 
| Total in-hospital costs | Absolute amount per case in CHF according financial department report | 1 March to 30 November 2017 |