This is a prospective single center cohort study on effect of a novel robotic surgical system for performance of minimally invasive surgery in multiple specialties. The targeted procedures include Urological, upper and lower GI robotic surgeries and the expected sample size will be 20 patients. The clinical outcomes for assessment include background demographics, operative time, perioperative complications as well as completion rate of procedure, hospital stay and recovery.

This is a prospective single center cohort study on effect of a novel robotic surgical system for performance of minimally invasive surgery in multiple specialties. The targeted procedures include Urological, upper and lower GI robotic surgeries and the expected sample size will be 20 patients. The procedures will be standardized according to previously reported. The diseases for robotic surgical treatment will include prostate carcinoma, colorectal carcinoma, as well as esophageal hiatal diseases and gastric carcinoma. The clinical outcomes for assessment include background demographics, operative time, perioperative complications as well as completion rate of procedure, hospital stay and recovery.

Inclusion Criteria:

1. Body mass index <35 kg/m2
2. Suitable for the listed minimally invasive surgical procedures for treatment of respective diseases
3. Willingness to participate as demonstrated by giving informed consent

Exclusion Criteria:

1. Contraindication to general anesthesia
2. Severe concomitant illness that drastically shortens life expectancy or increases risk of therapeutic intervention
3. Untreated active infection
4. Noncorrectable coagulopathy
5. Presence of another malignancy or distant metastasis
6. Emergency surgery
7. Vulnerable population (e.g. mentally disabled, pregnancy)