Amaç: Oral yol ile verilen B12 vitamini tedavisi çocukların tedaviye uyumu için daha uygun bir seçenektir. Çalışmamızda, nütrisyonel B12 vitamini eksikliği olan, 6-18 yaş arası çocuklara uygulanan oral B12 vitamini tedavisinin [siyanokobalamin (Dodex ampul)® 1.000 μg/amp, oral yol ile aç karnına, ilk 1 hafta her gün 1.000 μg, daha sonraki hafta günaşırı 1.000 μg, ardından 2 hafta süresince haftada 2 gün 1.000 μg, takiben 4 ay süresince haftada bir gün 1.000 μg oral B12 idame tedavisi verilmiştir] 4 ay süresince haftada bir gün 1.000 μg olarak verilmesinin etkinliğinin retrospektif değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Karadeniz Teknik Üniversitesi Tıp Fakültesi, Pediatri ABD, Çocuk Hematoloji ve Onkoloji Bilim Dalında, Ocak 2010-Ocak 2018 tarihleri arasında B12 vitamini eksikliği tanısıyla takip ve tedavi edilen 6-18 yaş grubu hastaların dosyaları retrospektif olarak incelendi. Bulgular: En sık saptanan başvuru şikâyeti baş ağrısı (%28,8) idi. Hastaların %24,1'inde eritrosit dağılım genişliği yüksekliği, %18,8'inde anemi, %7,5'inde lenfopeni, %3,1'inde makrositoz, %2,8'inde nötropeni, %2,7'sinde trombositopeni ve %30,1'nde homosistein yüksekliği, %15,6'sında idrar metilmalonik asit yüksekliği bulunmuştur. Tedavi sonrası vitamin B12 seviyesi ve hemoglobin değerleri tedavi öncesine göre anlamlı derecede yüksek (p<0,05) saptanmakla beraber ortalama serum B12 seviyeleri 191,4 pg/mL (<200 pg/mL) olarak sonuçlandı. İdame tedavide, 4 ay süre ile verilen haftalık 1.000 mcg siyanokobalamin tedavisinin başarı oranı %27,7 idi. Sonuç: Oral yol ile verilen tedavinin etkili olmakla beraber, 6-18 yaş grubu hastalarda 4 aylık, haftada bir gün verilen idame tedavinin yeterli olmadığı kanaatine varılmıştır, bu nedenle oral yoldan verilecek B12 vitamini idame tedavisinin haftada bir günden daha sık verilmesinin uygun olacağı kanaatindeyiz.
Anahtar Kelimeler: B12 vitamini eksikliği; çocuk; oral tedavi
Objective: Orally administered vitamin B12 treatment is a more suitable option for children to adapt to the treatment. In this study, it was aimed to retrospectively evaluate the effectiveness of oral vitamin B12 treatment [cyanocobalamin (Dodex ampoule)® 1,000 μg/amp, orally on an empty stomach, 1,000 μg every day for the first week, 1,000 μg every other day for the next week, then 1,000 μg twice a week for two weeks, then 1,000 μg once a week for 4 months oral B12 maintenance therapy] conducted on children aged 6-18 years with nutritional vitamin B12 deficiency. Material and Methods: The files of 6-18 age group patients who were followed up and treated with the diagnosis of vitamin B12 deficiency at Karadeniz Technical University Faculty of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology between January 2010 and January 2018 were analyzed retrospectively. Results: The most common complaint was: headache (28.8%). Patients were diagnosed with high red cell distribution width in 24.1%, anemia in 18.8%, lymphopenia in 7.5%, macrocytosis in 3.1%, neutropenia in 2.8% and thrombocytopenia in 2.7%. Homocysteine elevation was found in 30.1% and urinary methylmalonic acid elevation in 15.6% of the patients. Serum vitamin B12 levels which are evaluated after treatment and hemoglobin values increased. Although these values were found to be significantly higher (p<0.05) compared to the values before the treatment, the mean serum B12 levels were 191.4 pg/mL (<200 pg/mL). In maintenance treatment, the success rate of 1,000 mcg cyanocobalamin treatment given for 4 months, once-a-week was 27.7%. Conclusion: Although oral treatment is effective, it has been concluded that a 4-month, once-a-week maintenance treatment is not sufficient in 6-18 age group patients. Therefore, we believe that it will be more appropriate to offer an oral vitamin B12 maintenance treatment more frequently than once a week.
Keywords: Vitamin B12 deficiency; child; oral treatment
- Hall CA. Function of vitamin B12 in the central nervous system as revealed by congenital defects. Am J Hematol. 1990;34(2):121-7. [Crossref] [PubMed]
- Hartmann H, Das AM, Lücke T. Re: Honzik T, Adamovicova A, Smolka V, Magner M, Hruba E, Zeman J. Clinical presentation and metabolic consequences in 40 breastfed infants with nutritional vitamin B12 deficiency--what have we learned? Eur Jour Ped Neurol 14 (2010) 488-95. Eur J Paediatr Neurol. 2011;15(4):377; author reply 378. [Crossref] [PubMed]
- World Health Organization, Food and Agriculture Organization of the United Nations. Vitamin and Mineral Requirements in Human Nutrition. 2nd ed. Geneva: World Health Organization; 1998. 2005. p.284. Erişim tarihi: 27.07.2020 Erişim linki: [Link]
- Graham SM, Arvela OM, Wise GA. Long-term neurologic consequences of nutritional vitamin B12 deficiency in infants. J Pediatr. 1992;121(5 Pt 1):710-4. [Crossref] [PubMed]
- Bahadir A, Reis PG, Erduran E. Oral vitamin B12 treatment is effective for children with nutritional vitamin B12 deficiency. J Paediatr Child Health. 2014;50(9):721-5. [Crossref] [PubMed]
- World Health Organization. Haemoglobin Concentrations for the Diagnosis of Anaemia and Assessment of Severity. Geneva, Switz: World Health Organization; 2011. [Link]
- Lo SF. Reference intervals for laboratory tests and procedures. In: Kliegman RM, Stanton BF, St. Geme III JV, Schor NF, Behrman RE, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, PA,; Elsevier Inc.; 2011. p.2466. [Crossref]
- Brugnara C. Reference values in infancy and childhood. In: Orkin SH, Nathan DG, Ginsburg D, Look AT, Fisher DE, Lux IV S, eds. Nathan & Oski's Hematology of Infancy and Childhood. 8th ed. Philadelphia, PA,; Elsevier Inc.; 2009. p.1769-96.
- Rasmussen K, Nathan E. The clinical evaluation of cobalamin deficiency by determination of methylmalonic acid in serum or urine is not invalidated by the presence of heterozygous methylmalonic-acidaemia. J Clin Chem Clin Biochem. 1990;28(6):419-21. [Crossref] [PubMed]
- Rasmussen SA, Fernhoff PM, Scanlon KS. Vitamin B12 deficiency in children and adolescents. J Pediatr. 2001;138(1):10-7. [Crossref] [PubMed]
- Demir N, Koc A, Üstyol L, Peker E, Abuhandan M. Clinical and neurological findings of severe vitamin B12 deficiency in infancy and importance of early diagnosis and treatment. J Paediatr Child Health. 2013;49(10):820-4. [Crossref] [PubMed]
- Şahin A. Doğu Karadeniz Bölgesi ortaokul çocuklarında nutrisyonel anemi prevalansı [Uzmanlık tezi]. Trabzon: Karadeniz Teknik Üniversitesi; 2016. Erişim tarihi: 27.07.2020 Erişim linki: [Link]
- Stabler SP, Allen RH. Vitamin B12 deficiency as a worldwide problem. Annu Rev Nutr. 2004;24:299-326. [Crossref] [PubMed]
- Serin HM, Arslan EA. Neurological symptoms of vitamin B12 deficiency: analysis of pediatric patients. Acta Clin Croat. 2019;58(2):295-302. [PubMed] [PMC]
- Sezgin Evim M, Erdöl Ş, Özdemir Ö, Baytan B, Güneş AM. Long-term outcome in children with nutritional vitamin B12 deficiency. Turk J Haematol. 2011;28(4):286-93. [Crossref] [PubMed]
- Calik M, Aktas MS, Cecen E, Piskin IE, Ayaydın H, Ornek Z, et al. The association between serum vitamin B12 deficiency and tension-type headache in Turkish children. Neurol Sci. 2018;39(6):1009-14. [Crossref] [PubMed]
- Aydoğdu Çolak A, Anıl M, Toprak B, Köse E, Üstüner F. Çocuklarda B12 vitamin düzeyi ve periferik tam kan sayımı değerleri ile ilişkisi [B12 vitamin level in children and its relationship with complete blood count parameters]. J Dr Behcet Us Child Hosp. 2012;2(2):75-9. [Crossref]
- Bhatia P, Kulkarni JD, Pai SA. Vitamin B12 deficiency in India: mean corpuscular volume is an unreliable screening parameter. Natl Med J India. 2012;25(6):336-8. [PubMed]
- Aktas G, Alcelik A, Tekce BK, Sit M, Savli H, Tekce H. Could mean platelet volume and red cell distribution width predict vitamin b12 deficiency ? British Journal of Medicine & Medical Research. 2014;4(31):4965-71. [Crossref]
- Kartal Ö. Çocuklarda Vitamin B12 düzeyleri ile tam kan parametreleri arasındaki ilişkinin değerlendirilmesi [Evaluation of the relationship between vitamin B12 levels and whole blood parameters in children]. J Contemp Med. 2020;10(1):82-5. [Crossref]
- Vogiatzoglou A, Smith AD, Nurk E, Berstad P, Drevon CA, Ueland PM, et al. Dietary sources of vitamin B-12 and their association with plasma vitamin B-12 concentrations in the general population: the Hordaland Homocysteine Study. Am J Clin Nutr. 2009;89(4):1078-87. [Crossref] [PubMed]
- Savage DG, Lindenbaum J, Stabler SP, Allen RH. Sensitivity of serum methylmalonic acid and total homocysteine determinations for diagnosing cobalamin and folate deficiencies. Am J Med. 1994;96(3):239-46. [Crossref] [PubMed]
- Asma S, Erdoğan F, Ünsal A, Boğa C, Özdoğdu H, Gereklioğlu Ç, et al. Detection of vitamin B12 levels with the aid of some hematological and biochemical parameters that are more sensitive. Marmara Pharmaceutical Journal. 2010;14:125-9. [Link]
- Eikelboom JW, Lonn E, Genest J Jr, Hankey G, Yusuf S. Homocyst(e)ine and cardiovascular disease: a critical review of the epidemiologic evidence. Ann Intern Med. 1999;131(5):363-75. [Crossref] [PubMed]
- Diaz-Arrastia R. Homocysteine and neurologic disease. Arch Neurol. 2000;57(10):1422-7. [Crossref] [PubMed]
- Norman EJ. Urinary methylmalonic acid to detect vitamin B12 deficiency. JAMA. 1995;273(18):1420. [Crossref] [PubMed]
- Matchar DB, McCrory DC, Millington DS, Feussner JR. Performance of the serum cobalamin assay for diagnosis of cobalamin deficiency. Am J Med Sci. 1994;308(5):276-83. [Crossref] [PubMed]
- Moelby L, Rasmussen K, Jensen MK, Pedersen KO. The relationship between clinically confirmed cobalamin deficiency and serum methylmalonic acid. J Intern Med. 1990;228(4):373-8. [Crossref] [PubMed]
- Lindenbaum J, Savage DG, Stabler SP, Allen RH. Diagnosis of cobalamin deficiency: II. Relative sensitivities of serum cobalamin, methylmalonic acid, and total homocysteine concentrations. Am J Hematol. 1990;34(2):99-107. [Crossref] [PubMed]
- Lin J, Kelsberg G, Safranek S. Clinical inquiry: Is high-dose oral B12 a safe and effective alternative to a B12 injection? J Fam Pract. 2012;61(3):162-3. [PubMed]
- Altay C, Cetin M. Vitamin B12 absorption test and oral treatment in 14 children with selective vitamin B12 malabsorption. Pediatr Hematol Oncol. 1999;16(2):159-63. [Crossref] [PubMed]
- Verma D, Chandra J, Kumar P, Shukla S, Sengupta S. Efficacy of oral methylcobalamin in treatment of vitamin B12 deficiency anemia in children. Pediatr Blood Cancer. 2017;64(12). [Crossref] [PubMed]
- Estourgie-van Burk GF, van der Kuy PHM, de Meij TG, Benninga MA, Kneepkens CMF. Intranasal treatment of vitamin B12 deficiency in children. Eur J Pediatr. 2020;179(2):349-52. [Crossref] [PubMed]
- van Walraven C, Austin P, Naylor CD. Vitamin B12 injections versus oral supplements. How much money could be saved by switching from injections to pills? Can Fam Physician. 2001;47:79-86. [PubMed] [PMC]
- Schürmann S, Kersting M, Alexy U. Vegetarian diets in children: a systematic review. Eur J Nutr. 2017;56(5):1797-817. [Crossref] [PubMed]
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