The Intraoperative Physiologic Changes of Patients Under Hyperthermic Intraperitoneal Chemotherapy (HIPEC) Cytoreductive Surgery; Prospective Observational Study

Study Overview
=================
Brief Summary
-----------------
The most popular surgical treatment of peritoneal cancer is the type known as hyperthermic intraperitoneal chemoperfusion (HIPEC), a type of cytoreductive surgery for which a significantly high survival rate has been demonstrated by several studies. It is widely known that HIPEC entails severe physiological changes and precautions during anesthesia. However, very few studies have systematically outlined and organized these changes for each system, and most existing studies only report retrospective data or are limited to gynecological surgeries. Therefore, the present researchers planned a prospective observational study to determine the physiological changes that occur in patients during HIPEC cytoreductive surgeries performed in the colon and rectal surgery department of the investigators hospital. The investigators planned to monitor the patients' body temperature, metabolism, cardiovascular and respiratory changes during HIPEC cytoreductive surgery and analyze the anesthetic methods applied to identify the optimal anesthetic management strategy for HIPEC cytoreductive surgeries.

Conditions
-----------------
Peritoneal Surface Malignancies

Intervention / Treatment
-----------------
* Drug: HIPEC cytoreductive surgery


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Adult patients 20 years of age or older who will undergo HIPEC cytoreductive surgery at the colon and rectal surgery department of our hospital Exclusion Criteria: Cases in which there is a sudden change of surgery plans, or those in which consent forms are retracted.

Ages Eligible for Study
-----------------
Minimum Age: 20 Years

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

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

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

Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| HIPEC cytoreductive surgery<br> | Drug: HIPEC cytoreductive surgery<br>* At least 30 minutes prior to the prospective conclusion of the surgery, 1 μg/kg of fentanyl is administered for postoperative analgesia and 0.075mg of palonosetron is IV-infused for the prevention of nausea and vomiting. Desflurane and remifentanil administration is ceased after the surgery is concluded, muscle relaxation is evaluated by train of four (TOP) monitoring using a nerve stimulator, and the neuromuscular blockade is reversed with 0.2 mg of glycopyrrolate and 1 mg of neostigmine. When the patient recovers consciousness and begins spontaneous respiration, extubation is performed and the patient is transferred to the ICU with monitoring of their vital signs.<br>|

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

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Vital sign |  | from 30 minutes to 90 minutes after HIPEC | 
| Body temperature |  | from 30 minutes to 90 minutes after HIPEC | 
| serum glucose |  | from 30 minutes to 90 minutes after HIPEC | 
| pulmonary vascular permeability index |  | from 30 minutes to 90 minutes after HIPEC |