<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Oncohematology</journal-id><journal-title-group><journal-title xml:lang="en">Oncohematology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкогематология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1818-8346</issn><issn publication-format="electronic">2413-4023</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">899</article-id><article-id pub-id-type="doi">10.17650/1818-8346-2024-19-1-70-82</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSTIC OPPORTUNITIES AND TREATMENT ADVANCES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ВОЗМОЖНОСТИ ДИАГНОСТИКИ И УСПЕХИ ЛЕЧЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Diagnostic errors and treatment of anemia caused by vitamin B<sub>12</sub> deficiency</article-title><trans-title-group xml:lang="ru"><trans-title>Ошибки диагностики и лечение анемии, вызванной дефицитом витамина <sub>В12</sub></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7730-3988</contrib-id><name-alternatives><name xml:lang="en"><surname>Cherepanova</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Черепанова</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Valentina Vasil’evna Cherepanova</p><p>23 Prospekt Gagarina, Nizhny Novgorod 603022</p></bio><bio xml:lang="ru"><p>Валентина Васильевна Черепанова</p><p>603022 Нижний Новгород, пр-кт Гагарина, 23</p></bio><email>cherepanova.v@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sidnev</surname><given-names>G. V.</given-names></name><name xml:lang="ru"><surname>Сиднев</surname><given-names>Г. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>34a Nesterova St., Nizhny Novgorod 603005</p></bio><bio xml:lang="ru"><p>603005 Нижний Новгород, ул. Нестерова, 34а</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-9682-5356</contrib-id><name-alternatives><name xml:lang="en"><surname>Konyshkina</surname><given-names>T. M.</given-names></name><name xml:lang="ru"><surname>Конышкина</surname><given-names>Т. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Prospekt Gagarina, Nizhny Novgorod 603022</p></bio><bio xml:lang="ru"><p>603022 Нижний Новгород, пр-кт Гагарина, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-9976-1807</contrib-id><name-alternatives><name xml:lang="en"><surname>Borisov</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Борисов</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Prospekt Gagarina, Nizhny Novgorod 603022</p></bio><bio xml:lang="ru"><p>603022 Нижний Новгород, пр-кт Гагарина, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moiseenko</surname><given-names>N. B.</given-names></name><name xml:lang="ru"><surname>Моисеенко</surname><given-names>Н. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Prospekt Gagarina, Nizhny Novgorod 603022</p></bio><bio xml:lang="ru"><p>603022 Нижний Новгород, пр-кт Гагарина, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Clinical Medicine, N.I. Lobachevsky National Research State University of Nizhny Novgorod</institution></aff><aff><institution xml:lang="ru">Институт клинической медицины ФГАОУ ВО «Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">City polyclinic No. 21 of the Nizhny Novgorod district of Nizhny Novgorod</institution></aff><aff><institution xml:lang="ru">ГБУЗ НО «Городская поликлиника №21 Нижегородского района г. Нижнего Новгорода»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-01-27" publication-format="electronic"><day>27</day><month>01</month><year>2024</year></pub-date><volume>19</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>70</fpage><lpage>82</lpage><history><date date-type="received" iso-8601-date="2024-01-27"><day>27</day><month>01</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-01-27"><day>27</day><month>01</month><year>2024</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncohematology.abvpress.ru/ongm/article/view/899">https://oncohematology.abvpress.ru/ongm/article/view/899</self-uri><abstract xml:lang="en"><p>This work was carried out in real clinical practice. Five clinical observations of anemia caused by vitamin B<sub>12</sub> deficiency are presented, which demonstrate the difficulties of differential diagnosis. Differential diagnosis of B<sub>12</sub>‑deficiency anemia is carried out with folate deficiency anemia, hemolytic anemia, myelodysplastic syndrome, acute leukemia – erythromyelosis, aplastic anemia, myelocarcinomatosis, anemia due to copper deficiency. The relevance of the clinical problem is determined by the fact that B<sub>12</sub>‑deficiency anemia is one of the common anemias, the frequency of its detection varies in different age groups: after 60 years, vitamin B<sub>12</sub> deficiency is found in one in 50 people, after 70 years – in every 15th. Currently, an increasingly common cause of megaloblastic anemia is vitamin B<sub>12</sub> deficiency, which occurs while taking certain medications. Vitamin deficiency leads to a wide range of various disorders, primarily the occurrence of neurological manifestations, while there is insufficient awareness of clinicians about causes of its occurrence, nonspecific manifestations, diagnostic methods and effective therapy.</p></abstract><trans-abstract xml:lang="ru"><p>Настоящая работа выполнена в условиях реальной клинической практики. Представлены 5 клинических наблюдений анемии, вызванной дефицитом витамина В<sub>12</sub>, которые демонстрируют трудности дифференциальной диагностики. Дифференциальная диагностика В<sub>12</sub>‑дефицитной анемии проводится с фолиеводефицитной анемией, гемолитической анемией, миелодиспластическим синдромом, острым лейкозом – эритромиелозом, апластической анемией, миелокарциноматозом, анемией при дефиците меди. Актуальность клинической проблемы определяется тем, что В<sub>12</sub>‑дефицитная анемия наиболее распространена, частота ее выявления варьирует в разных возрастных группах: после 60 лет дефицит витамина В<sub>12</sub> обнаруживают у 1 из 50 человек, после 70 лет – у каждого 15‑го. В настоящее время все более частой причиной мегалобластной анемии является дефицит витамина В<sub>12</sub>, возникающий на фоне приема некоторых лекарственных препаратов. Этот дефицит приводит к широкому спектру различных нарушений, в первую очередь к неврологическим проявлениям, при этом существует недостаточная осведомленность клиницистов в области причин его возникновения, неспецифических признаков, методов диагностики и эффективной терапии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>B<sub>12</sub>‑deficiency anemia</kwd><kwd>differential diagnosis of B<sub>12</sub>‑deficiency anemia</kwd><kwd>treatment of B<sub>12</sub>‑deficiency anemia</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>В<sub>12</sub>‑дефицитная анемия</kwd><kwd>дифференциальная диагностика В<sub>12</sub>‑дефицитной анемии</kwd><kwd>лечение В12<sub>‑дефицитной анемии</sub></kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Clinical recommendations. Vitamin B12-deficiency anemia. Available at: https://cr.minzdrav.gov.ru/recomend/536_2. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Клинические рекомендации. Витамин В12-дефицитная анемия. Доступно по: https://cr.minzdrav.gov.ru/recomend/536_2.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><mixed-citation>Elli L., Norsa A., Zullo A. et al. Diagnosis of chronic anaemia in gastrointestinal disorders: A guideline by the Italian Association of Hospital Gastroenterologists and Endoscopists (AIGO) and the Italian Society of Paediatric Gastroenterology Hepatology and Nutrition (SIGENP). Dig Liver Dis 2019;51(4):471–83. DOI: 10.1016/j.dld.2019.01.022</mixed-citation></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Krasnovskiy A.L., Grigor’iev S.P., Alyokhina R.M. et al. Modern diagnostic and treatment of vitamin B12 deficiency. Klinitsist = The Clinicia 2016;10(3):15–25. (In Russ.). DOI: 10.17650/1818-8338-2016-10-3-15-25</mixed-citation><mixed-citation xml:lang="ru">Красновский А.Л., Григорьев С.П., Алёхина Р.М. и др. Современные возможности диагностики и лечения дефицита витамина В12. Клиницист 2016;10(3):15–25. DOI: 10.17650/1818-8338-2016-10-3-15-25</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Ostroumova O.D., Kravchenko E.V. Medically induced megaloblastic anemia. Lechebnoe delo = General Medicine 2019;(2):36–47. (In Russ.). DOI: 10.24411/2071-5315-2019-12110</mixed-citation><mixed-citation xml:lang="ru">Остроумова О.Д., Кравченко Е.В. Лекарственно-индуцированная мегалобластная анемия. Лечебное дело 2019;(2):36–47. DOI: 10.24411/2071-5315-2019-12110</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><mixed-citation>Ahmed M.A., Muntingh G., Rheeder P. Vitamin B12 deficiency in metformin-treated type-2 diabetes patients, prevalence and association with peripheral neuropathy. BMC Pharmacol Toxicol 2016;17(1):44. DOI: /10.1186/s40360-016-0088-3</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Devalia V., Hamilton M.S., Molloy A.M. Guidelines for the diagnosis and treatment of cobalamin and folate disorders. Br J Haematol 2014;166:496–513. DOI: 10.1111/bjh.12959</mixed-citation></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Ekusheva E.V., Shikh E.V., Ametov A.S. et al. The problem of vitamin B12 deficiency: relevance, diagnosis and targeted therapy (based on materials of an interdisciplinary expert council with international participation). Zhurnal nevrologii i psikhiatrii im. S.S. Korsakova = S.S. Korsakov Journal of Neurology and Psychiatry 2021;121(11):17–25. (In Russ.). DOI: 10.17116/jnevro202112111117</mixed-citation><mixed-citation xml:lang="ru">Екушева Е.В., Ших Е.В., Аметов А.С. и др. Проблема дефицита витамина B12: актуальность, диагностика и таргетная терапия (по материалам междисциплинарного совета экспертов с международным участием). Журнал неврологии и психиатрии им. С.С. Корсакова 2021;121(11):17–25. DOI: 10.17116/jnevro202112111117</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">Pavlov Ch.S., Damulin I.V., Shulpekova Yu.O., Andreev E.A. Neurological disorders in vitamin B12 deficiency. Terapevticheskiy arkhiv = Therapeutic Archive 2019;91(4):122–9. (In Russ.). DOI: 10.26442/00403660.2019.04.000116</mixed-citation><mixed-citation xml:lang="ru">Павлов Ч.С., Дамулин И.В., Шульпекова Ю.О., Андреев Е.А. Неврологические расстройства при дефиците витамина В12. Терапевтический архив 2019;91(4):122–9. DOI: 10.26442/00403660.2019.04.000116</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><citation-alternatives><mixed-citation xml:lang="en">Bublii Yu.S., Vydyborets S.V. Neurological disorders in vitamin-В12deficiency anemia. Gematologiya. Transfuziologiya. Vostochnaya Evropa = Hematology. Transfusiology. Eastern Europe 2021;7(1):71–7. (In Russ.). DOI: 10.34883/PI.2021.7.1.006</mixed-citation><mixed-citation xml:lang="ru">Бублий Ю.С., Выдыборец С.В. Неврологические нарушения при витамин В12-дефицитной анемии. Гематология. Трансфузиология. Восточная Европа 2021;7(1):71–7. DOI: 10.34883/PI.2021.7.1.006</mixed-citation></citation-alternatives></ref><ref id="B10"><label>10.</label><citation-alternatives><mixed-citation xml:lang="en">Bolieva L.Z., Bolotina L.V., Galstyan G.R. et al. Resolution of the Expert Council “Vitamin B12 deficiency in clinical practice”. Terapiya = Therapy 2023;9(1):22–7. (In Russ.). DOI: 10.18565/therapy.2023.1.22-27</mixed-citation><mixed-citation xml:lang="ru">Болиева Л.З., Болотина Л.В., Галстян Г.Р. и др. Резолюция совета экспертов «недостаточность/дефицит витамина В12 в клинической практике». Терапия 2023;9(1):22–7. DOI: 10.18565/therapy.2023.1.22-27</mixed-citation></citation-alternatives></ref><ref id="B11"><label>11.</label><mixed-citation>Green R. Vitamin B12 deficiency from the perspective of a practicing hematologist. Blood 2017;129(19):2603–11. DOI: 10.1182/blood-2016-10-569186</mixed-citation></ref><ref id="B12"><label>12.</label><citation-alternatives><mixed-citation xml:lang="en">Bulgakova S.V., Zakharova N.O., Treneva E.V., Lobinskaya M.A. Current understanding of anemic syndrome in older age groups (literature review). Sovremennye problemy zdravookhraneniya i meditsinskoy statistiki = Modern Problems of Health Care and Medical Statistics 2020;(2):45–68. (In Russ.). DOI: 10.24411/2312-2935-2020-00031</mixed-citation><mixed-citation xml:lang="ru">Булгакова С.В., Захарова Н.О., Тренева Е.В., Лобинская М.А. Современные представления об анемическом синдроме у лиц старших возрастных групп (обзор литературы). Современные проблемы здравоохранения и медицинской статистики 2020;(2):45–68. DOI: 10.24411/2312-2935-2020-00031</mixed-citation></citation-alternatives></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Clinical Guidelines for Diagnosis and Treatment of Autoimmune Hemolytic Anemia (AIHA) in Adults. Moscow, 2018. Available at: https://npngo.ru/uploads/media_document/291/84cbcaeb-518f4a7d-b081-88f7fbb016fc.pdf. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Клинические рекомендации по диагностике и лечению аутоиммунной гемолитической анемии (АИГА) у взрослых. М., 2018. Доступно по: https://npngo.ru/uploads/media_document/291/84cbcaeb-518f-4a7d-b081-88f7fbb016fc.pdf.</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><citation-alternatives><mixed-citation xml:lang="en">Idel’son L.I. Anemia associated with vitamin B12 deficiency. Guide to Hematology. Vol. 3. Ed.: A.I. Vorob’ev. Moscow: N’yudiamed, 2005. Pp. 197–213. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Идельсон Л.И. Анемии, обусловленные дефицитом витамина В12. Руководство по гематологии. Т. 3. Под ред. А.И. Воробьева. М.: Ньюдиамед, 2005. С. 197–213.</mixed-citation></citation-alternatives></ref><ref id="B15"><label>15.</label><mixed-citation>Pfeiffer C.V., Caudill S.P., Gunter E.W. et al. Biochemical indicators of B vitamin status in the US population after folic acid fortification: results from the National Health and Nutrition Examination Survey 1999–2000. Am J Clin Nutr 2005;82(2): 442–50. DOI: 10.1093/ajcn.82.2.442</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Selhub J., Morris M.S., Jacques P.F. et al. Folate-vitamin B-12 interaction in relation to cognitive impairment, anemia, and biochemical indicators of vitamin B-12 deficiency 1–5. Am J Clin Nutr 2009;89(suppl):702S–6S. DOI: 10.3945/ajcn.2008.26947C</mixed-citation></ref><ref id="B17"><label>17.</label><citation-alternatives><mixed-citation xml:lang="en">Federal Clinical Recommendations for Care of Paroxysmal Nocturnal Hemoglobinuria Patients. Gematologiya i transfuziologiya = Hematology and Transfusiology 2022;67(3):426–39. (In Russ.). DOI: 10.35754/0234-5730-2022-67-3-426-439</mixed-citation><mixed-citation xml:lang="ru">Федеральные клинические рекомендации пo ведению больных с пароксизмальной ночной гемоглобинурией. Гематология и трансфузиология 2022;67(3):426–39.</mixed-citation></citation-alternatives></ref><ref id="B18"><label>18.</label><mixed-citation>Noris M., Mescia F., Remuzzi G. et al. STEC-HUS, atypical HUS and TTP are all diseases of complement activation. Nat Rev Nephrol 2012;8(11):622–33. DOI: 10.1038/nrneph.2012.195</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Kappler S., Ronan-Bentle S., Graham A. Thrombotic microangiopathies (TTP, HUS, HELLP). Hematol Oncol Clin North Am 2017;31(6):1081–103. DOI: 10.1016/j.hoc.2017.08.010</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Romain M., Sviri S., Linton D.M. et al. The role of vitamin B12 in the critically ill – a review. Anaesth Intensive Care 2016;44(4):447–52. DOI: 10.1177/0310057X1604400410</mixed-citation></ref><ref id="B21"><label>21.</label><citation-alternatives><mixed-citation xml:lang="en">Folate Deficiency Anemia. Moscow, 2021. Available at: https://cr. minzdrav.gov.ru/recomend/540_2. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Федеральные клинические рекомендации. Фолиеводефицитная анемия. М., 2021. Доступно по: https://cr.minzdrav.gov.ru/recomend/540_2.</mixed-citation></citation-alternatives></ref><ref id="B22"><label>22.</label><citation-alternatives><mixed-citation xml:lang="en">Hematology. Guidelines for Doctors. Ed.: N.N. Mamaev. Myelodysplastic syndromes. Saint Petersburg: SpetsLit, 2019. Рp. 295–317. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Гематология. Руководство для врачей. Под ред. Н.Н. Мамаева. Миелодиспластические синдромы. СПб.: СпецЛит, 2019. С. 295–317.</mixed-citation></citation-alternatives></ref><ref id="B23"><label>23.</label><citation-alternatives><mixed-citation xml:lang="en">Vorob’ev A.I. Guide to Hematology. Vol. 1. Moscow: N’yudiamed, 2005. Pp. 212–214. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Воробьев А.И. Руководство по гематологии. Т. 1. М.: Ньюдиамед, 2005. С. 212–214.</mixed-citation></citation-alternatives></ref><ref id="B24"><label>24.</label><citation-alternatives><mixed-citation xml:lang="en">Filatov L.B. Copper deficiency as a hematological problem. Klinicheskaya onkogematologiya = Clinical Oncohematology 2010;(1):17–23. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Филатов Л.Б. Дефицит меди как гематологическая проблема. Клиническая онкогематология 2010;(1):17–23.</mixed-citation></citation-alternatives></ref><ref id="B25"><label>25.</label><citation-alternatives><mixed-citation xml:lang="en">Ushkalova E.A., Zyryanov S.K., Zatolochina K.E. New approaches to the diagnosis and treatment of B12-deficiency conditions. Profilakticheskaya meditsina = The Russian Journal of Preventive Medicine 2021;24(3):59–66. (In Russ.). DOI: 10.17116/profmed20212403159</mixed-citation><mixed-citation xml:lang="ru">Ушкалова Е.А., Зырянов С.К., Затолочина К.Э. Новые подходы к диагностике и лечению B12-дефицитных состояний. Профилактическая медицина 2021;24(3):59–66. DOI: 10.17116/profmed20212403159</mixed-citation></citation-alternatives></ref><ref id="B26"><label>26.</label><mixed-citation>Butler C.C., Vidal-Alaball J., Cannings-John R. et al. Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency: a systematic review of randomized controlled trials. Fam Pract 2006;23(3):279–85. DOI: 10.1093/fampra/cml008</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Sanz-Cuesta T., Escortell-Mayor E., Cura-Gonzalez I. et al. Oral versus intramuscular administration of vitamin B12 for vitamin B12 deficiency in primary care: A pragmatic, randomised, noninferiority clinical trial (OB12). BMJ Open 2020;10(8):e033687. DOI: 10.1136/bmjopen-2019-033687</mixed-citation></ref></ref-list></back></article>
