When cancer spreads to the lining of the abdomen, treatment becomes more complex. Standard chemotherapy travels through the bloodstream and often reaches the abdominal lining in low amounts. For some patients, a specialized approach called HIPEC offers a more direct way to treat the disease.
At Immunotherapy Institute, the HIPEC procedure is one of the advanced options we evaluate for patients with cancers inside the abdomen. In this guide, we explain what HIPEC is, how it works, who may qualify and what to expect before and after treatment.
What Is HIPEC?
HIPEC stands for hyperthermic intraperitoneal chemotherapy. Let's break that down:
- Hyperthermic: heated.
- Intraperitoneal: inside the peritoneum, the thin lining that covers the abdominal organs and walls.
- Chemotherapy: medicine that kills cancer cells.
The National Cancer Institute describes this approach, also called continuous hyperthermic peritoneal perfusion, as circulating heated chemotherapy through the abdominal cavity during surgery.
How the HIPEC Procedure Works
HIPEC is performed together with surgery, in three main stages.
Step 1: Exploration
Surgeons examine the abdominal cavity to see how far the cancer has spread.
Step 2: Cytoreductive Surgery
The surgical team removes all visible tumors. This step, called cytoreduction or debulking, is essential. The American Cancer Society notes that, in ovarian cancer, patients whose visible tumors are fully or almost fully removed tend to have a better prognosis.
Step 3: Heated Chemotherapy
After the visible tumors are removed, a warmed chemotherapy solution is circulated inside the abdomen, usually for a set period of time. It reaches cancer cells too small to see during surgery. The solution is then drained.
Why Heat and Direct Delivery Matter
Higher Concentration Where It Is Needed
Because the chemotherapy goes directly into the abdomen, it can reach the abdominal lining in higher concentrations, while less of it reaches the rest of the body.
Heat Strengthens the Effect
Heat can make cancer cells more sensitive to chemotherapy and may help the medicine penetrate tissue. The NCI notes that hyperthermia is almost always combined with other treatments for this reason. Learn more in our guide to whole-body hyperthermia, a different form of heat therapy.
One Treatment During Surgery
Instead of many sessions over months, the heated chemotherapy is given once, during the operation.
Which Cancers Can HIPEC Treat?
HIPEC is considered for cancers that have spread to or started in the abdominal lining. At our clinic, these include:
- Peritoneal carcinomatosis, meaning cancer that has spread across the peritoneum.
- Selected cases of ovarian cancer.
- Abdominal (peritoneal) mesothelioma.
- Gastric (stomach) cancer in selected cases.
- Certain soft tissue sarcomas.
Cancers that began in the colon or appendix are also commonly evaluated for HIPEC. Learn more in our article on colorectal cancer treatments.
Who Is a Good Candidate?
HIPEC is a major procedure, and careful selection is key. Our team considers:
- Whether the cancer is mostly limited to the abdomen.
- Whether visible tumors can be removed with surgery.
- Your overall health and strength to recover from surgery.
- Your heart, lung, liver and kidney function.
- Previous treatments and how your cancer responded.
Not every patient is a candidate. If HIPEC is not right for you, we will explain why and discuss other options. Selecting the right patients is one of the most important factors in good results.
Recovery After HIPEC
Because HIPEC is combined with extensive surgery, recovery takes time. Patients usually stay in the hospital for a period after the operation, and full recovery often takes several weeks. During recovery, patients may experience fatigue, pain, digestive changes and reduced appetite.
Good recovery depends on more than surgery. Our team supports patients with:
- Daily medical monitoring.
- Cellular nutrition to rebuild strength and support healing.
- Immune support therapies.
- Holistic healing for emotional wellbeing.
HIPEC as Part of a Complete Plan
HIPEC treats cancer inside the abdomen, but many patients benefit from a broader plan. Our care is built on three pillars: autologous immunotherapy, targeted therapy and supportive therapies. For patients with prior chemotherapy, our chemotherapy preconditioning program may also help. Long-term, our follow-up program includes up to three years of monitoring.
Questions to Ask Before HIPEC
- Am I a candidate based on my type and extent of cancer?
- How much experience does the surgical team have with HIPEC?
- Where will the surgery take place, and how long will I stay?
- What are the possible complications?
- What does recovery involve, and who will support me?
- What is the full cost, and what does it include?
A trustworthy team will answer each question clearly. You can meet our medical team before deciding.
How HIPEC Compares With Standard Chemotherapy
With standard chemotherapy, medicine is given through a vein and travels throughout the body. Only part of it reaches the lining of the abdomen, and side effects can affect the whole body. With HIPEC, the medicine is placed directly where the cancer is, at the time of surgery, after visible tumors have been removed.
This does not mean HIPEC replaces other treatments. Many patients still receive systemic therapy before or after surgery. The goal is to choose the right combination and sequence for each case, based on the type of cancer, how far it has spread and the patient's overall health.
Preparing for HIPEC
Preparation helps patients recover better from a major operation. Before HIPEC, our team reviews your imaging, lab work and overall health. We focus on nutrition to build strength, review your medications and make sure any other conditions are under control. Bringing a family member or caregiver is strongly recommended, since recovery takes time and support makes a real difference.
Frequently Asked Questions
Is HIPEC a type of surgery?
HIPEC is a chemotherapy treatment given during surgery. It is always combined with an operation to remove visible tumors.
Does HIPEC cause hair loss?
Because less chemotherapy reaches the rest of the body, side effects such as hair loss may be less common than with standard chemotherapy. Every case is different.
How long does the procedure take?
The full operation, including surgery and heated chemotherapy, often takes several hours. Your team will give you a specific estimate.
Can HIPEC cure cancer?
For some carefully selected patients, HIPEC can offer long-term control of disease. Results vary, and no clinic can promise a cure.
Can HIPEC be combined with immunotherapy?
In many cases, HIPEC can be part of a plan that also includes immune-based and supportive therapies. Our team will design the right sequence for you.
Find Out If HIPEC Is an Option for You
If cancer has spread within your abdomen, you may have more options than you think. Our team will review your scans and records and explain whether HIPEC could be part of your plan. If another approach is a better fit, we will explain it clearly. Our goal is to help you make a confident decision with complete information, at your own pace and with your family involved. You can also share your records with your doctors at home, and we will gladly coordinate with them.
Request your free case review, call us at (619) 832-2230, or message us on WhatsApp. We respond within 24 hours.
This article is for educational purposes and does not replace medical advice. Treatment outcomes vary from patient to patient.