Anesthetic management of a patient with methylmalonic acidemia: a case report
Yuta Uemura1, Nami Kakuta1, Katsuya Tanaka1
1Department of Anesthesiology, Tokushima University, 3-18-15, Kuramoto, Tokushima, 770-8503, Japan.
Background:
Methylmalonic acidemia (MMA) is a metabolic disorder of organic acids and is characterized by the accumulation of methylmalonic acids.
Case Presentation:
The patient was a 19-year-old female diagnosed with severe MMA at 3 days of age, who was scheduled for renal replacement therapy. Preoperatively, there was no evidence of metabolic acidosis or electrolyte abnormalities. Glucose was administered preoperatively following a 6-h fast. Anesthesia was administered using thiamylal, remifentanil, rocuronium, and sevoflurane. After tracheal intubation, the patient underwent an ultrasound-guided bilateral rectus sheath block with ropivacaine. A drop in blood sugar level was treated with 5% glucose. Extubation was performed after intravenous administration of sugammadex.
Conclusions:
We report the anesthetic management of a patient with MMA using a combination of general anesthesia and rectus sheath block.
Insights
Anesthetic management for a patient with methylmalonic acidemia (MMA) involved general anesthesia and a rectus sheath block. This approach ensured safe surgical preparation for renal replacement therapy in this metabolic disorder patient.
Area of Science:
- Anesthesiology
- Metabolic Disorders
- Organic Acidemias
Background:
- Methylmalonic acidemia (MMA) is a severe organic acid metabolic disorder.
- Characterized by the accumulation of methylmalonic acids.
- Requires careful management, especially perioperatively.
Purpose of the Study:
- To describe the anesthetic management of a patient with severe MMA.
- To highlight the use of a combined general anesthesia and rectus sheath block technique.
- To ensure safe surgical preparation for renal replacement therapy.
Main Methods:
- General anesthesia with thiamylal, remifentanil, rocuronium, and sevoflurane.
- Ultrasound-guided bilateral rectus sheath block with ropivacaine post-intubation.
- Intraoperative glucose administration for hypoglycemia and sugammadex for extubation.
Main Results:
- Successful anesthetic management for renal replacement therapy in a 19-year-old female with severe MMA.
- No preoperative metabolic acidosis or electrolyte abnormalities observed.
- Managed intraoperative hypoglycemia with glucose infusion.
Conclusions:
- Combined general anesthesia and rectus sheath block is a viable anesthetic strategy for MMA patients.
- This technique facilitated safe surgery for renal replacement therapy.
- Highlights the importance of tailored anesthetic plans for rare metabolic disorders.
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