Browsing by Author "Abuhandan, Mahmut"

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Çocuklarda Brusellozis: 103 Vakanın Retrospektif Olarak Değerlendirilmesi
(1999) Atas, Bulent; Abuhandan, Mahmut; Öner, Ahmet Faik; Cesur, Yaşar; Arslan, Şükrü; Çaksen, Hüseyın; Ceylan, Abdullah
Bu çalışmada hastanemizde brusellozis tanısıyla izlenen 103 vakanın klinik ve laboratuvar bulguları retrospektif olarak incelenmiştir. Amacımız ülkemizde çocukluk çağı brusellozisinde ilk önce tercih edilmesi gereken ilaç kombinasyonunu belirlemek ve hastalığın ülkemiz ve özellikle de bölgemiz için halen önemli bir halk sağlığı problemi olduğunu vurgulamaktır. Çalışmamızda 103 vakadan 52'si kız, 51'i erkek idi. Yaşları 20 ay ile 16 yıl (8.3 ± 3.6 yıl) arasında değişmekteydi. Ateş (%55.3), eklem ağrısı (%53.3), halsizlik (%41.7) ve iştahsızlık (%30) en sık getiriliş şikayetleri arasındaydı. Sırasıyla hepatosplenomegali (%22.5), hepatomegali (%20.5), artrit (%17.4) ve splenomegali (%15.5) en sık saptanan bulgulardı. Vakaların 18'inde (%17.4) anemi, sekizinde (%7.7) lökopeni, 15'inde (%14.5) ise lökositoz vardı. Sedimentasyon düzeyi vakaların 84'ünde (%81.5) çalışılmıştı; 52'sinde (%61.9) 20 mm/saat'in üzerindeydi. Serum AST (aspartat aminotransferaz) ve ALT (alanin aminotransferaz) düzeyi 55 (%53.3) vakada çalışılmıştı; 31 'inde (%56.3) AST, 17'sinde (%30.9) ise ALT yüksekliği vardı. Brusella aglütinasyon titrasyonu vakaların tümünde 1/160 veya 1/160'ın üzerindeydi. Vakaların çoğunda (%83.5) titrasyon oranı 1/320 ve üzerindeydi. Tedavide en fazla rifampisin + kotrimoksazol, rifampisin + tetrasiklin ve streptomisin + kotrimoksazol olmak üzere toplam 12 tipte ilaç kombinasyonu kullanılmıştı. Vakaların yedisi dışında tümü ilk başlanılan ilaç kombinasyonuyla tamamen iyileşmişti; tedaviye cevap vermeyen bu yedi vakada ilk kullanılan ilaçlar farklı bir ilaç rejimiyle değiştirilmişti. Kullanılan ilaç kombinasyonuyla iyileşme oranı arasında anlamlı fark olmadığı belirlendi (p>0.05). Vakaların hiçbirinde rölaps görülmemişti.
An Evaluation of Oxidative Status in Serum and Breast Milk of Mothers Giving Birth Prematurely and at Full-Term
(Kowsar Corp, 2015) Abuhandan, Mahmut; Demir, Nihat; Guzel, Bulent; Almaz, Veysi; Koca, Bulent; Tuncer, Oguz; Cakmak, Alpay
Background: Burning fat and carbohydrates to provide energy in biological systems causes the formation of free oxygen species. Objectives: This study aimed to evaluate the oxidative status of serum and breast milk of mothers giving birth prematurely and at fullterm. Materials and Methods: The study comprised 50 mothers who gave birth at full-term at more than 38 weeks and 43 mothers who gave birth pre-term at below 32 weeks. On the postnatal 5th day, samples of the mother's milk and serum were taken and stored at -80 degrees C until the study day. On the study day, the total oxidant and total antioxidant levels were measured using the Erel method and the oxidative stress index (OSI) was calculated. Results: While the total oxidant level and total antioxidant level values of the milk of the premature birth mothers were found to be significantly high compared to those of the full-term birth mothers (P = 0.001), no statistically significant difference was found in the oxidative stress index values (P > 0.05). No statistically significant difference was found in the total oxidant level and oxidative stress index values of the serum of the premature birth mothers compared to those of the full-term birth mothers, while the total antioxidant level was found to be significantly low (P = 0.04). Conclusions: The oxidants and antioxidants in the milk of mothers giving birth prematurely were found to be significantly higher than those of full-term birth mothers. This can be evaluated as the milk of the premature birth mothers providing increased antioxidant defense to protect the infant.
Visual and Brainstem Auditory Evoked Potentials in Infants With Severe Vitamin B12 Deficiency
(Tubitak Scientific & Technological Research Council Turkey, 2015) Demir, Nihat; Koc, Ahmet; Abuhandan, Mahmut; Calik, Mustafa; Iscan, Akin
Background/aim: Vitamin B-12 plays an important role in the development of mental, motor, cognitive, and social functions via its role in DNA synthesis and nerve myelination. Its deficiency in infants might cause neuromotor retardation as well as megaloblastic anemia. The objective of this study was to investigate the effects of infantile vitamin B-12 deficiency on evoked brain potentials and determine whether improvement could be obtained with vitamin B-12 replacement at appropriate dosages. Materials and methods: Thirty patients with vitamin B-12 deficiency and 30 age-matched healthy controls were included in the study. Hematological parameters, visual evoked potentials, and brainstem auditory evoked potentials tests were performed prior to treatment, 1 week after treatment, and 3 months after treatment. Results: Visual evoked potentials (VEPs) and brainstem auditory evoked potentials (BAEPs) were found to be prolonged in 16 (53.3%) and 15 (50%) patients, respectively. Statistically significant improvements in VEP and BAEP examinations were determined 3 months after treatment. Three months after treatment, VEP and BAEP examinations returned to normal in 81.3% and 53.3% of subjects with prolonged VEPs and BAEPs, respectively. Conclusion: These results demonstrate that vitamin B-12 deficiency in infants causes significant impairment in the auditory and visual functioning tests of the brain, such as VEP and BAEP.