Plasma ammonia in patients with acute leukemia

Area of Science:

• Oncology
• Biochemistry
• Neurology

Background:

• Acute leukemia (AL) patients often undergo intensive chemotherapy.
• Chemotherapy can lead to various side effects, including neurological complications.
• Hyperammonemia is a potential complication that may affect AL patients.

Purpose of the Study:

• To investigate plasma ammonia levels (PAL) in acute leukemia patients.
• To determine the incidence and clinical significance of hyperammonemia post-chemotherapy.
• To evaluate the efficacy of ammonia-trapping therapy for hyperammonemia in AL.

Main Methods:

• Studied plasma ammonia levels in 43 acute leukemia cases.
• Measured PAL before and after chemotherapy.
• Monitored clinical manifestations and neurological changes.
• Administered ammonia-trapping therapy to affected patients.

Main Results:

• Plasma ammonia levels were similar in normal controls and pre-chemotherapy AL patients.
• Elevated PAL was observed in 40 out of 43 patients after chemotherapy.
• Six patients exhibited severe hyperammonemia symptoms, including altered mental status and respiratory alkalosis.
• Four out of five patients treated with ammonia-trapping therapy showed recovery.

Conclusions:

• High plasma ammonia levels are frequent following chemotherapy in acute leukemia.
• Clinical signs like neurological changes and respiratory alkalosis suggest hyperammonemia syndrome.
• Prompt diagnosis and ammonia-trapping treatment can potentially enhance remission and survival rates in AL patients.