HIPEC and PIPAC are two specialised treatment approaches designed specifically for cancers that have spread to the peritoneum, the thin layer of tissue that lines the inside of the abdomen. They are not experimental. They are performed at leading cancer centres around the world, and in Chennai, Dr. Senthil offers both.
Understanding what these treatments involve can help you ask the right questions, make a confident decision, and feel less overwhelmed by what lies ahead.
HIPEC delivers heated chemotherapy directly inside the abdomen right after surgery to remove visible tumours. The heat makes cancer cells more sensitive to the drugs and helps them work deeper into the tissue. Because the drugs go straight to the affected area rather than through the bloodstream, a much stronger dose can be used with fewer side effects on the rest of the body. The procedure takes about 90 minutes to 2 hours and is done once, at the end of surgery.
PIPAC converts chemotherapy into a fine mist and delivers it under pressure inside the abdomen through two small keyhole incisions. This allows the drug to reach areas that liquid chemotherapy often misses, including small tumour deposits in tight spaces. PIPAC is given in repeated sessions every 4 to 6 weeks. It is a gentler option for patients who are not ready for major surgery, and most patients go home within one to two days after each session.
When most people hear the word chemotherapy, they picture intravenous infusions drugs flowing through the bloodstream to reach cancer cells anywhere in the body. This works for many types of cancer, but it has a real limitation when cancer is confined to the peritoneal surfaces: the drugs have to travel through the bloodstream to get there, and by the time they arrive, the concentration is much lower. Both HIPEC and PIPAC take a different approach. Instead of sending chemotherapy through the bloodstream, they deliver it directly where the cancer is inside the abdomen at far higher concentrations, with far less exposure to the rest of the body.
Step 1: Cytoreductive Surgery (CRS)
Before HIPEC treatment in Chennai begins, the surgeon performs Cytoreductive Surgery (CRS) to remove every visible tumour deposit from the peritoneal surfaces. This may include removing portions of the bowel, abdominal wall lining, or the omentum. The goal is to leave behind no visible cancer, a state known as complete cytoreduction. This surgery typically takes 4 to 10 hours depending on the extent of disease.
Step 2: The Heated Chemotherapy Wash
Once all visible tumours are removed, the HIPEC phase begins immediately without closing the abdomen. A heated chemotherapy solution, usually cisplatin, oxaliplatin, or mitomycin C, is circulated through the abdominal cavity at 41 to 43 degrees Celsius using a perfusion machine. This continuous wash runs for 90 minutes to 2 hours, reaching every surface and fold that surgery alone cannot address. This is what makes intraperitoneal chemotherapy in Chennai a more targeted approach than standard intravenous treatment.
Step 3: Closure and Recovery Begins
After the wash is complete, the chemotherapy solution is drained and the abdomen is closed. The patient moves to the ICU for monitoring. Most patients undergoing HIPEC treatment in Chennai spend 2 to 4 days in the ICU, followed by a total hospital stay of 10 to 14 days. Recovery at home typically takes 6 to 8 weeks.
This is often the first question patients ask and it is the right question. Not everyone with peritoneal cancer is a candidate for every procedure. The decision depends on many factors, and it should always be made by an experienced specialist after a thorough review of your case.
You may be a candidate for HIPEC treatment in Chennai if:
Even if another doctor has told you that surgery is not possible, a second opinion from a specialist in CRS and HIPEC is worth pursuing. What one surgeon considers unresectable, a more experienced specialist may find achievable.
PIPAC treatment in Chennai may be the right option if:
PIPAC is also used as a bridge therapy in intraperitoneal chemotherapy in Chennai, helping reduce tumour burden until the patient becomes a suitable candidate for CRS and HIPEC.
Recovery after CRS and HIPEC is a gradual process. The surgery is major, and your body needs time to heal on multiple levels.
When the diagnosis is serious and the treatment is complex, the experience and judgment of the surgeon matters more than almost anything else. Dr. Senthil is one of the few surgical oncologists in Chennai who has dedicated his practice to the treatment of peritoneal surface malignancies cancers that have spread to the lining of the abdomen. His surgical training and clinical focus have been specifically oriented around CRS, HIPEC, and PIPAC, which means that these are not occasional procedures performed alongside a general oncology practice, they are central to what he does.