Cohort Study Comparing Surgeon Stress, Utilization of Surgical Instruments, Surgical Outcomes According to Surgical Approach for Gastrectomy

Study Overview
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Brief Summary
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A new surgical instrument is supposed to allow surgeon to do surgery with better performance. However, the learning period before getting used to the new instruments is necessary. The surgeon's stress to overcome the learning effect and the surgical outcome was rarely assessed. The comparative analysis of surgical outcome, surgeon's stress, and utilization of instruments for gastrectomy will be performed in prospective cohort study

Detailed Description
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Before the surgery, all the eligible patients will be explained regarding the study and informed consent will be given. During the surgery, the surgeon will wear heart rate monitoring device to monitor hear rate variability of the surgeon. The surgical procedure will be recorded. After the surgery, morbidity following surgery will be monitored and recorded. At 1 month after surgery, additional morbidity will be recorded.

Official Title
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Cohort Study Comparing Surgeon Stress, Utilization of Surgical Instruments, Surgical Outcomes According to Surgical Approach for Gastrectomy

Conditions
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Gastric Cancer Patients Undergoing Gastrectomy

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with gastric cancer scheduled for gastrectomy Exclusion Criteria: Vulnerable subject (illiterate, pregnant)

Ages Eligible for Study
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Maximum Age: 90 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 |
| --- | --- |
| LC<br>laparoscopic surgery using conventional laparoscopic instruments | |
| LW<br>Using wristed laparoscopic instruments (Artisential Maryland dissector, Artisential Fenestrated grasper) | |
| RC<br>Conventional robotic surgery | |
| RSS<br>Use of single site system for reduced port robotic surgery | |
| RSP<br>Use of da Vinci SP system for reduced port robotic surgery | |
| RRI<br>A new surgical robot Revo-i developed by Meerae company in Korea | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| complication | One of the most important surgical outcome, complication will be measured at 1 month after surgery | 1 month after surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| operative time (min) |  | 1 month after surgery | 
| bleeding(ml) |  | 1 month after surgery | 
| gas passing(day) |  | 1 month after surgery | 
| hospital stay(day) |  | 1 month after surgery | 
| readmission rate(percent) |  | 1 month after surgery | 
| Heart rate variability of surgeon |  | during the operation | 
| Duration for each surgical instruments |  | during the operation | 
| number of use for each surgical instruments |  | during the operation | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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surgeon stress, instrument, outcome, complication