SummaryObjectives. This study was undertaken to evaluate whether the surgeons' oxygen saturation of hemoglobin was affected by the surgical mask or not during major operations.Methods. Repeated measures, longitudinal and prospective observational study was performed on 53 surgeons using a pulse oximeter pre and postoperatively.Results. Our study revealed a decrease in the oxygen saturation of arterial pulsations (SpO 2 ) and a slight increase in pulse rates compared to preoperative values in all surgeon groups. The decrease was more prominent in the surgeons aged over 35.Conclusions. Considering our findings, pulse rates of the surgeon's increase and SpO 2 decrease after the first hour. This early change in SpO 2 may be either due to the facial mask or the operational stress. Since a very small decrease in saturation at this level, reflects a large decrease in PaO 2 , our findings may have a clinical value for the health workers and the surgeons.KEY WORDS: Surgery. Surgical Mask. Oxygenation. Operation. Oxygen saturation. Facemask.Comunicación preliminar sobre desoxigenación inducida por la mascarilla quirúrgica durante la cirugía de larga duración ResumenObjetivos. Este estudio se realizó para determinar si la saturación de oxígeno del cirujano se afectaba por el uso de la mascarilla, durante intervenciones de larga duración.Métodos. Se hizo un estudio longitudinal y prospectivo en 53 cirujanos con medidas de la hemoglogina realizadas con un oxímetro para medir la saturación del pulso arterial. Se hicieron estudios antes y después de la operación.Resultados. Nuestro estudio puso de manifiesto una disminución de la saturación de oxígeno de las pulsaciones arteriales (SpO 2 ) y un ligero aumento de las pulsaciones en comparación con el estado preoperatorio en todos los grupos de cirujanos. La disminución era mayor en el grupo de edad superior a los 35 años.Conclusiones. Según nuestros hallazgos, el ritmo del pulso aumenta y la concentración de SpO 2 disminuye después de la primera hora de la operación. Este cambio temprano de SpO 2 puede deberse a la mascarilla o al estrés de la intervención. Puesto que un ligero descenso en la saturación a este nivel refleja una mayor disminución de la PaO 2 , nuestros datos pueden tener un valor clínico para la salud del personal sanitario y para los cirujanos.

Congenital hypoplasia of the posterior arch of the atlas (C1), a developmental failure of chondrogenesis, is a rare anomaly and may range from partial clefts to total agenesis of the posterior arch. Ossification of the posterior arch usually occurs between the 3rd and 5th years of life. The incidence of posterior arch anomalies of the atlas is between 0.69% and 2.95%. For the evaluation of the patient, cervical lateral plain radiography, 2D or 3D reconstructed CT and MRI are very useful and important tools in initial diagnosis. Surgery is the treatment of choice in symptomatic compression. Excision of the posterior arch is performed. during surgery. After the surgery, patients may be followed up for instability and treated as necessary. A patient, admitted to the emergency department with head and neck trauma after a traffic accident is presented in this article. C1 hypoplasia was determined after detailed imagining studies and the radiology department consulted. When upper cervical anomalies are found in a young patient, the patient should be evaluated in detail with advanced radiological studies to avoid misinterpretation as fractures, luxation, osteolysis or instability. Consulting a radiologist could help making an accurate diagnosis and deciding on current therapeutic interventions.KeywOrds: Atlas, Hypoplasia, Posterior, Arch, Congenital, Anomaly ÖZKondrogenezdeki doğumsal bozukluk sonucu oluşan atlasın arka yayının gelişimsel eksikliği nadir bir anomalidir ve kısmi yarık oluşumundan atlasın arka yayının tam yokluğuna kadar gidebilir. Arka yayın kemikleşmesi 3-5 yaşlar arasında olur. Atlasın arka yayı anomalilerinin insidansı %0.69-2.95 arasındadır. Hastayı değerlendirmek için servikal lateral direkt grafi, 2 ve 3 boyutlu rekonstrüksiyonlu bilgisayarlı tomografi ve magnetik rezonans inceleme çok yararlı ve önemli tanı araçlarıdır. Semptomatik bası varlığında cerrahi bir tedavi seçeneğidir. Cerrahide arka yayın eksizyonu uygulanmaktadır. Cerrahi sonrasında hastalar instabilite için takip edilmeli ve gerektiğinde tedavi edilmelidir. Bu makalede, trafik kazası sonrası acil servise baş ve boyun travması ile gelen bir hasta sunulmaktadır. Detaylı radyolojik çalışmalar sonrası, atlas hipoplazisi saptanmış ve sonrasında hasta radyoloji bölümüne konsülte edilmiştir. Genç hastada üst servikal anomaliler saptandığında; kırık, luksasyon, osteoliz ve instabilite hasta ayrıntılı yanlış yorumlardan kaçınmak için hasta radyolojik incelemelerle ayrıntılı değerlendirilmelidir. Radyoloji uzmanına yapılan konsultasyon kesin tanıya ve doğru tedavi edici girişimlerin yapılması için karar verilmesine yardım olmaktadır.

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SummaryObjectives. This study was undertaken to evaluate whether the surgeons' oxygen saturation of hemoglobin was affected by the surgical mask or not during major operations.Methods. Repeated measures, longitudinal and prospective observational study was performed on 53 surgeons using a pulse oximeter pre and postoperatively.Results. Our study revealed a decrease in the oxygen saturation of arterial pulsations (SpO 2 ) and a slight increase in pulse rates compared to preoperative values in all surgeon groups. The decrease was more prominent in the surgeons aged over 35.Conclusions. Considering our findings, pulse rates of the surgeon's increase and SpO 2 decrease after the first hour. This early change in SpO 2 may be either due to the facial mask or the operational stress. Since a very small decrease in saturation at this level, reflects a large decrease in PaO 2 , our findings may have a clinical value for the health workers and the surgeons.KEY WORDS: Surgery. Surgical Mask. Oxygenation. Operation. Oxygen saturation. Facemask.Comunicación preliminar sobre desoxigenación inducida por la mascarilla quirúrgica durante la cirugía de larga duración ResumenObjetivos. Este estudio se realizó para determinar si la saturación de oxígeno del cirujano se afectaba por el uso de la mascarilla, durante intervenciones de larga duración.Métodos. Se hizo un estudio longitudinal y prospectivo en 53 cirujanos con medidas de la hemoglogina realizadas con un oxímetro para medir la saturación del pulso arterial. Se hicieron estudios antes y después de la operación.Resultados. Nuestro estudio puso de manifiesto una disminución de la saturación de oxígeno de las pulsaciones arteriales (SpO 2 ) y un ligero aumento de las pulsaciones en comparación con el estado preoperatorio en todos los grupos de cirujanos. La disminución era mayor en el grupo de edad superior a los 35 años.Conclusiones. Según nuestros hallazgos, el ritmo del pulso aumenta y la concentración de SpO 2 disminuye después de la primera hora de la operación. Este cambio temprano de SpO 2 puede deberse a la mascarilla o al estrés de la intervención. Puesto que un ligero descenso en la saturación a este nivel refleja una mayor disminución de la PaO 2 , nuestros datos pueden tener un valor clínico para la salud del personal sanitario y para los cirujanos.