目的分析1例表现较为复杂的II型神经纤维瘤病(neurofibromatosis type II,NF2)患者的临床表现、听力康复方法和效果,明确一种特殊类型的NF2听神经瘤的听力重建方法及术后康复效果。方法整理该患者临床表现及既往史,术前检查,临床手术方法及术后随访听力康复效果。结果患者双侧听神经瘤,听力表现为双耳极重度感音神经性听力下降。外周血基因检测未见治病基因突变,考虑为嵌合体。患者右耳为内耳神经鞘膜瘤,且双眼视力极差,右耳行带瘤人工耳蜗植入术,术后通过为期2个月的以家庭为主的听力语言康复,听觉能力分级(CAP)由0分提高到5分。结论NF2临床表现复杂,临床预后差。带有微小的内耳神经鞘膜瘤的NF2患者可以通过带瘤植入人工耳蜗重建听力。
Carnitine Palmitoyl Transferase II (CPTII) is a very important enzyme that helps with the oxidation of long-chain fatty acid to produce energy. Deficiency in CPTII will lead to energy deficiency in the case of fasting and the accumulation of the long chain fatty in the body. There are three types of CPT II deficiency, the myopathic form, the severe infantile hepatocardiomuscular form and the lethal neonatal form. They are all inherited as an autosomal recessive. Diagnosis of the CPTII are 1) tandem mass spectrometry (MS/MS) in adult form and 2) CPTII polymorphism (F352C), which is linked to reducing the activity of CPTII in infantile form [1]. Glucose is the primary management and medium-chain fatty acid is an alternative due to the bypass of the CPTII enzyme in the pathway. For the prevention of CPTII deficiency are to avoid long chain fatty acid (C12-fatty acid), fasting, prolonged exercise, known triggers, and certain medications such as anti-epileptics and general anesthesia. During the rhabdomyolysis and myoglobinuria attack, it is very important to maintain hydration to avoid acute renal failure. If, however, renal failure occurs, dialysis is recommended. We present a case of a 27-year-old African American woman with the significant past medical history of CPT II deficiency leading to recurrent rhabdomyolysis and myoglobinuria. Together with all the research studies from diagnosis to treatment of CPTII deficiency will help in clinical management of patients. And this case report will add to the existing case reports of patients who have CPTII deficiency in terms of how we diagnose, how we treat, and how we prevent symptoms from re-occurring.
