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Amino acid-based peritoneal dialysis solutions can cause chemical peritonitis mimicking bacterial peritonitis in patientsIdentifying chemical peritonitis in patients on peritoneal dialysis

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Key Takeaway
Note that chemical peritonitis from amino acid-based solutions can mimic bacterial peritonitis in clinical presentation.

This case report and literature review describes a single case of peritoneal dialysis-chemical peritonitis in a patient using an amino acid-based peritoneal dialysis solution. The clinical presentation included abdominal pain, cloudy effluent, and elevated peritoneal leukocyte counts.

The authors synthesize the difficulty of distinguishing chemical peritonitis from bacterial peritonitis in clinical practice. Both conditions present with similar clinical features, which can complicate the diagnostic process for clinicians managing patients on peritoneal dialysis.

The primary limitation of this evidence is the small sample size of a single case report. Clinical conclusions should be drawn with caution as the findings are not based on a large-scale clinical trial or a multi-center study.

Practically, the report serves as a reminder to consider chemical peritonitis as a potential cause of abdominal pain and cloudy effluent in patients using specific amino acid-based solutions. Clinicians must remain vigilant when interpreting peritoneal leukocyte counts in the context of chemical irritation.

When a patient on peritoneal dialysis develops abdominal pain and cloudy fluid, it is often a medical emergency. Doctors must quickly decide if the cause is a chemical reaction from the dialysis fluid or a dangerous bacterial infection. Because both conditions look almost identical during an exam, making the right call is a major challenge for medical teams.

This report looks at a case of chemical peritonitis. This condition happens when the dialysis fluid causes inflammation in the abdomen. The patient showed classic signs like pain and a high white blood cell count in the fluid. These same signs appear in bacterial infections, making it very difficult to tell the two apart based on symptoms alone.

Because this is a single case report, the findings are limited. However, the case highlights a real problem in clinical practice. Doctors must stay alert to the specific types of fluids a patient is using to better manage potential complications.

What this means for you:
Chemical and bacterial peritonitis look nearly identical, making diagnosis difficult for doctors.

Common questions

What is chemical peritonitis?

Chemical peritonitis is a type of inflammation in the abdomen caused by the dialysis fluid rather than a germ. In this case, a patient using an amino acid-based solution developed abdominal pain and cloudy fluid. It is hard to diagnose because it looks very similar to a bacterial infection.

Why is it hard to tell the difference between chemical and bacterial infections?

Both conditions present with similar symptoms, such as abdominal pain and elevated white blood cell counts in the fluid. Because the clinical signs are so similar, doctors may find it difficult to determine if the cause is a chemical reaction or a bacterial infection based on a standard exam.

Study Details

Study typeSystematic review
EvidenceLevel 1
PublishedSep 2026
View Original Abstract ↓
Peritoneal dialysis-chemical peritonitis induced by amino acid-based peritoneal dialysis solution is extremely rare. There are only a few reported case series of this condition. It can occur at any time during the use of amino acid dialysate, and most cases present with abdominal pain, cloudy effluent, and elevated peritoneal leukocyte counts, closely mimicking infectious peritonitis. This similarity poses a significant diagnostic challenge, as it is difficult to distinguish from bacterial peritonitis. Here, we report a case of peritoneal dialysis-chemical peritonitis associated with amino acid dialysate in a patient on peritoneal dialysis, aiming to raise awareness among clinicians of this rare entity that can be easily confused with infectious peritonitis. We also review its clinical characteristics, differential diagnosis, and management.
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