FIRST IDENTIFICATION OF HEMOGLOBIN LANSINGRAMATHIBODI [α87(F8)His → Gln; CAC>CAG (HBA1: c.264C>G)] IN A THAI FAMILY WITH SPURIOUS HYPOXEMIA.

Abstract

We report, for the first time, hemoglobin (Hb) Lansing-Ramathibodi [α87(F8)His → Gln; CAC>CAG (HBA1: c.264C>G)] in four members of a Thai family presented with low measured oxygen saturation by pulse oximetry (SpO2), with discrepancy between low SpO2 and normal calculated oxygen saturation by arterial blood gas analysis, and no cyanosis or methemoglobinemia. The causative mutation is located in HBA1 whereas in previous reports of Hb Lansing the mutation is on HBA2, including that in a Japanese individual. The index and a male sibling also co-inherited Hb Pakse, a non-deletional α-thalassemia 2, resulting in mild reticulocytosis. Correct Hb identification is crucial for genetic counselling and, thereby, avoiding unnecessary investigation and treatment for spurious hypoxemia.

• Authors: Satariya Trakulsrichai, Bhakbhoom Panthan, Paisan Jittorntam, Pimjai Niparuck, Charuwan Sriapha, Wasun Chantratita, Winai Wananukul, Objoon Trachoo
• Journal: The Southeast Asian journal of tropical medicine and public health (Southeast Asian J Trop Med Public Health) Vol. 47 Issue 5 Pg. 1048-54 (Sep 2016) ISSN: 0125-1562 [Print] Thailand
• PMID: 29620819 (Publication Type: Journal Article)

Chemical References

• Hemoglobins, Abnormal

Topics

• Adult
• Family
• Female
• Hemoglobins, Abnormal (genetics)
• Humans
• Hypoxia (etiology, genetics, pathology)
• Male
• Thailand