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Letter to the Editor

Correspondence to ‘Neonatal hypoglycaemia due to ABCC8 gene mutation’

Maralihalli, Mahesh,

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Indian Journal of Endocrinology and Metabolism: July–Aug 2021 - Volume 25 - Issue 4 - p 360-361
doi: 10.4103/ijem.ijem_312_21
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I read with interest the article by Kumar et al.,[1] on neonatal hypoglycemia which includes a case report of ABCC-associated congenital hyperinsulinism (CHI) and a comprehensive approach to neonatal hypoglycemia, despite being a letter to the editor! I noted a few concerns in the article. The patient had diazoxide-unresponsive but octreotide-responsive disease. 18F-DOPA PET/CT is not routinely indicated in all patients with CHI but is recommended only for diazoxide-unresponsive CHI with paternally inherited/de-novo monoallelic mutations in ABCC8/KCNJ11 or no mutations in ABCC8/KCNJ11.[2] The patient was subjected to functional imaging awaiting the genetic results, that too with one of the least sensitive modalities, 99mTc-HYNIC-TOC scintigraphy. I believe that the scintigraphy should not have been performed on this patient. Secondly, it is surprising to note that the authors decided that the patient should undergo near-total pancreatectomy despite the disease being octreotide-responsive. Fortunately, the parents deferred the surgery. In such patients, monthly intramuscular administration of long-acting somatostatin analogs (SSA) is recommended.[2] The results of near-total pancreatectomy are unsatisfactory with low success rates, and high rates of complications including permanent diabetes mellitus, and exocrine insufficiency.[3] Hence, its use is not recommended for CHI that responds to medical therapy.[2] I note that the authors do not mention offering long-acting SSA to the patient which should have been preferred over near-total pancreatectomy.

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