What cause death in peritonitis if the etiology is by non infectious agents? thank

Multiple organ fail: Peritonitis means INFLAMMATION of the peritoneum, the inner lining of the belly. Sometimes this starts with bacteria, viruses, fungi, parasites, or inflammatory conditions like lupus. Once the inflammation starts, it makes all the major organs (heart, lungs, kidneys, liver, brain) work much harder than normal. Sometimes those organs can't do the work, and fail one at a time, causing death.