Peritoneal mesothelioma can cause several symptoms and complications related to the gastrointestinal (GI) tract, including constipation, nausea, and vomiting. These are caused by the cancer itself and by tumors growing in the abdomen, but also by treatments. Management is essential for improving quality of life.
What Gastrointestinal Symptoms Does Peritoneal Mesothelioma Cause?
Because the cancer grows primarily in the abdomen, gastrointestinal symptoms and complications are common with this type of cancer and may include:[1]
- Bloating and pain
- Bowel obstruction
- Constipation
- Nausea
- Vomiting
Does Asbestos Cause Other Gastrointestinal Cancers?
Asbestos exposure is the underlying cause of nearly all cases of mesothelioma, but it can also cause other types of cancer.
While pleural mesothelioma and lung cancer are more common, studies link asbestos exposure to other GI cancers:[2]
- Stomach
- Colon
- Rectal
- Ovarian
Researchers recently connected asbestos exposure with ovarian cancer. The finding came as women who used talcum powder regularly for years developed the cancer.[3] Talcum powder can be contaminated with asbestos.
Although it’s not part of the GI system, cancer in an ovary can lead to GI symptoms: bloating and swelling in the abdomen, feeling full, constipation, and abdominal pain.
How Does Mesothelioma Affect the Digestive System?
Most often, the GI symptoms associated with peritoneal mesothelioma are directly caused by the tumors in the abdomen. However, sometimes, the treatments used to manage, treat, or cure cancer cause GI symptoms.
Complications Caused by the Cancer
Tumors growing in the abdominal cavity cause GI distress by pushing on digestive organs, nerves, and other tissues. Cancer can also cause ascites, the buildup of fluid in the abdomen, which can also cause complications.
For instance, constipation is a common symptom, and it is usually caused by a tumor pressing on or infiltrating the bowels.
Rarely, and in extreme cases, the tumor can cause a complete bowel obstruction, which is painful and dangerous. This may require medical interventions at the hospital or urgent surgery in the most severe cases.
Complications from Cytoreductive Surgery
The most effective treatment for peritoneal mesothelioma is cytoreductive surgery, followed by HIPEC. The surgery removes as much cancerous tissue from the abdomen as possible. The HIPEC is a type of chemotherapy that circulates the drugs directly in the abdomen instead of intravenously throughout the whole body.[4]
While this treatment can be highly effective, even curative, there are always risks. Complications from the surgery can lead to significant GI issues:[4]
- Bowel obstruction
- Prolonged ileus
- Infections
- Fistula
- Pain
- Nausea/ vomiting
- Pneumonia and other pulmonary complications
- Lowered immune system (neutropenia)
- Blood clots
- Organ dysfunction or failure
Side Effects of Chemotherapy
HIPEC causes fewer side effects than standard intravenous chemotherapy. However, it can still cause side effects, and patients who are not candidates for HIPEC may receive traditional chemotherapy and struggle with GI side effects:[5]
- Nausea
- Vomiting
- Diarrhea
- Constipation
Managing GI Complications in Peritoneal Mesothelioma
GI problems can have a significantly negative impact on quality of life and even lead to social isolation. The sometimes embarrassing side effects may lead a patient to stay home and be afraid to be around other people. Addressing and managing the complications is important for health and quality of life.
Bowel Obstruction
A bowel obstruction is the most serious GI complication, and if not addressed immediately, it can lead to tissue death in the intestines and more serious complications. It is essential to contact your doctor if you have any signs of obstruction: cramps, constipation, swelling, and inability to have a bowel movement or pass gas.[6]
When a tumor causes bowel obstruction, surgery to remove it may be necessary. If the obstruction is only partial, changes in diet and removal of fluid or air from the abdominal cavity or intestines can help.[6]
Bloating and Pain
Bloating and pain in peritoneal mesothelioma are often caused by ascites. Ascites is fluid buildup in the abdominal cavity. This is usually managed with paracentesis, a procedure used to drain fluid. If the fluid keeps returning, the patient may receive a catheter. This is a semi-permanent tube that drains fluid into a bag. Patients can manage it at home.
Constipation
In addition to treating the cancer to relieve constipation, several other strategies can be helpful :[7]
- Over-the-counter medications and laxatives
- Drinking plenty of fluids and staying hydrated
- Eating more fiber
- Being physically active to the extent it is possible and safe
- Prescribed medications for constipation
Nausea and Vomiting
Nausea and vomiting can result from both cancer and its treatments. These symptoms are uncomfortable, but they can also lead to harmful weight loss, so management is important:[8]
- Medications, including over-the-counter and prescription drugs
- Medical cannabis
- Complementary and alternative practices, such as acupuncture, biofeedback, and hypnosis
- Changing diet to include foods that are appealing or bland to reduce nausea
- Staying hydrated with small amounts of liquid and ice chips
The GI symptoms and complications triggered by peritoneal mesothelioma can be uncomfortable, painful, embarrassing, and dangerous. Patients must talk to their medical teams about these issues to make a plan for treatment or management.
