Journals / Bakırköy Tıp Dergisi / 2006 / Cilt: 2 - Sayı: 4

Vitamin B12 yetersizliği olan hastaların retrospektif olarak değerlendirilmesi

A retrospective evaluation of patients with vitamin B12 deficiency

Pages
126–129
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Consequently, vitamin B12 levels have to be investigated in anemic patients, whether MCV is normal or not.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Vitamin B12 deficiency mainly causes megaloblastic anemia and neurological abnormalities.
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Key Findings & Data:The purpose of the present study was to evaluate the clinical and laboratory features of patients with confirmed vitamin B12 deficiency, retrospectively.
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Conclusion & Impact:Consequently, vitamin B12 levels have to be investigated in anemic patients, whether MCV is normal or not.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Anemi · makrositik · Geriyedönük çalışma

Abstract

Objective: Vitamin B12 deficiency mainly causes megaloblastic anemia and neurological abnormalities. The purpose of the present study was to evaluate the clinical and laboratory features of patients with confirmed vitamin B12 deficiency, retrospectively. Material and Methods: Thirty-one patients who were admitted to Department of Internal Medicine of Afyon Kocatepe University Hospital and identified as having vitamin B12 deficiency were enrolled in the study. Data were obtained retrospectively from medical records, including the reason of investigating vitamin B12 levels, comorbidities, concomitant acute infection, hemoglobin level, mean corpuscular volume (MCV), leukocyte and platelet counts, and existence of iron deficiency anemia and folic acid deficiency. Results: The mean vitamin B12 level was 138.9±30.7 pg/ml, hemoglobin 9.3±2.0 g/dl, MCV 88.2±11.9 fL. Nine patients had iron deficiency anemia. In patients with iron deficiency anemia, MCV was significantly lower (P=0.041). While nine patients (29%) had acute infection, 3 patients presented with pancytopenia. Pancytopenia was significantly higher in patients with acute infection (P=0.023). The relation between B12 levels and other parameters was investigated. Only MCV levels had negative correlation with vitamin B12 levels (r=-0.450, P=0.011). Conclusion: Macrocytosis in our study group has been found to be low in accordance with previous studies. As in our investigation, although vitamin B12 deficiency may be reason for increased MCV, this rise may not always reach levels for macrocytosis. The concomitant iron deficiency anemia may be responsible for this situation. Consequently, vitamin B12 levels have to be investigated in anemic patients, whether MCV is normal or not.

Özet

Amaç: Vitamin B12 eksikliği başlıca değişik nörolojik bulgulara ve megaloblastik anemiye neden olur. Bu çalışmanın amacı vitamin B12 eksikliği saptanan hastaların klinik ve laboratuvar özelliklerinin retrospektif olarak değerlendirilmesidir. Gereç ve Yöntem: Afyon Kocatepe Üniversitesi Tıp Fakültesi İç Hastalıkları Kliniği’ne farklı nedenlerle yatırılan ve vitamin B12 eksikliği tespit edilen 31 hasta çalışmaya alındı. Vitamin B12 düzeyi istenme nedeni, eşlik eden hastalıklar, infeksiyon varlığı, hemoglobin, ortalama eritrosit hacmi (MCV), lökosit, trombosit değerleri ile eşlik eden demir eksikliği anemisi ve folik asit eksikliği retrospektif olarak araştırıldı. Bulgular: Hastaların ortalama B 12 vitamin düzeyleri 138.9±30.7 pg/ml, hemoglobin 9.3±2.0 g/dl, MCV 88.2±11.9 fL olarak saptandı. Dokuz hastada demir eksikliği anemisi eşlik etmekteydi. Demir eksikliği anemisi olanlarda MCV düzeyleri anlamlı olarak düşüktü (P=0.041). Dokuz (%29) hastada akut infeksiyon mevcut iken, 3 hastada da pansitopeni eşlik etmekteydi ve infeksiyonu olan grupta pansitopeni sıklığı anlamlı olarak daha yüksekti (P=0.023). Tüm grupta B12 vitamini ile diğer parametrelerin ilişkisine bakıldı. B 12 vitamin düzeyi ile sadece MCV düzeyi arasında negatif korelasyon saptandı (r=-0.450, P=0.011). Sonuç: Olgularımızda makrositoz oranı daha önceki çalışmalara paralel olarak düşük bulunmuştur. Çalışmamızda da bulunduğu gibi, vitamin B 12 düşüklüğü MCV’de artışa neden olsa da, bu artış her zaman makrositoz seviyesine ulaşmayabilir. Demir eksikliği anemisinin eşlik etmesi bu durumdan sorumlu olabilir. Dolayısıyla MCV normal bile olsa anemik hastalarda vitamin B12 düzeyi bakılmalıdır.

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Cite This Article

YÜKSEL, Ş., USLAN, İ., ACARTÜRK, G., ÇÖLBAY, M., KARAMAN, Ö., MARALCAN, M., DEMİR, S. (2006). Vitamin B12 yetersizliği olan hastaların retrospektif olarak değerlendirilmesi. Bakırköy Tıp Dergisi, Cilt: 2 - Sayı: 4, 126–129. https://ajindex.com/articles/133138

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