What Are We Missing From Asymmetric Relationship Between the Retinal Nerve Fiber Layer Thickness Profiles and Sphenoid Sinus Volume?

PURPOSE/AIM OF THE STUDY: Detailed analysis of retinal structure such as the retinal nerve fiber layer can be performed by spectral-domain optical coherence tomography (OCT). There are no published studies concerning a relationship between retinal nerve fiber layer and human sphenoid sinus volumes. We investigated this relationship. MATERIAL AND METHODS: Spectral-domain OCT. The peripapillary retinal nerve fiber layer (RNFL) thickness and sphenoid sinus volume estimation of both sides of sex-matched patients were retrospectively analyzed. RESULTS: The mean RNFL thicknesses at the left side (91.8 µm) were significantly smaller than the right side (94.5 µm) (P = 0.040). However, the mean left sinus volume (44.5 cm) is larger than the right side, (34.5 mm) (P < 0.005). Left and right differences of both parameters are statistically significant (P < 0.05). CONCLUSION: There is a negative correlation between mean RNFL thicknesses and mean sinus volumes. To our knowledge, this article is the first report demonstrating the asymmetry relationship between RNFL and sphenoid sinus volumes.

Interesting different survival status of musicians with malignant cerebral tumors.

Introduction: The education of a musician may have an effect on the neuronal functions and organization of the brain, promote brain plasticity, resulting in functional and structural changes. A variety of malign cerebral tumors have affected the musician, instrumentalist or singer, at some time during their lives. No comprehensive investigation for musicians with malignant tumors has been performed yet. The aims of the study are to investigate if there is a relationship between the performed music style (classic or pop/rock) and the malignancy of the tumor.Patients and methods: The key words were 'neurosurgery and music' and the names of composers. We used digital catalogs like 'Pubmed' as well as the libraries of universities. We investigated a list of people with brain tumors from the English Wikipedia. (https://en.wikipedia.org/wiki/List_of_people_with_brain_tumors).We divided musicians into two groups according to their performing of classic or rock-pop music, and their gender.Results: We found 27 classic and rock/pop musicians who suffered from malign cerebral tumors. The median survival time estimations were 18 (mean 22.33, 95% CI ranged from 7.49 to 37.17) months for pop-rock musicians and 8 (mean 8.67, 95% CI ranged from 4.13 to 12.19) months for classical music performers. However, in Cox regression analysis, performed classical music type was associated with an increased risk of early death, lesser survival time age associated with an adjusted hazard ratio (aHR) of 1.06 [95% confidence interval (CI) 1.020 to 1.111; p = .004),Conclusion: In musicians with malign cerebral tumors, music type performed by musician may affect the survival status, classical musicians have a worse outcome than rock-pop musicians.

The Effect of Neuroscientists on the Studies of Autonomic Nervous System Dysfunction Following Experimental Subarachnoid Hemorrhage.

OBJECTIVE: The autonomic nervous system dysfunctions following subarachnoid hemorrhage (SAH) are common in neurosurgical clinical practice. The aim of the study is to investigate the effect of Asian neuroscientists on the studies of autonomic nervous system dysfunction following experimental subarachnoid hemorrhage. METHODS: A systematic search was conducted using the MEDLINE and Web of Science databases for studies pertaining to SAH and autonomic nervous system dysfunction. The searched terms contained "experimental subarachnoid hemorrhage," "autonomic nervous system," and "Ganglion." RESULTS: There are many animal studies because the live human brain vessels cannot be used in investigations. The considerable efforts have been made to investigate the effect of SAH on the autonomic nervous system in laboratory animals. Seventy-four studies were published by various authors. Most of the articles came from Asian Countries 49 studies (66.2% of the total studies). The most preferred animals were rabbits (in 43 studies, 58.1% of the total studies). CONCLUSION: Asian neuroscientists published enormous contributions in SAH-related autonomic nervous system dysfunction. It was shown that there is a great interest of Asian neuroscientists for autonomic nervous system changes secondary to SAH.

Analyzing of dark past and bright present of neurosurgical history with a picture of musicians.

AIM: Currently, neurosurgery has gone through moments of great renewal, however, in the first half of the 20th century, unwanted outcome after surgical approach had occurred. The aim of this historical overview of a picture of the musicians is to show the development of Neurosurgery in 20 century. METHODS: History of neurosurgery in the first half of the 20th century and the current was investigated through PubMed. A brief tour of some of the major landmarks of contemporary neurosurgery was also made. RESULTS: A musician picture was found which taken in 1928. Two of the musicians suffered neurosurgical disorder, and operated in 1937, both immediately died without gaining conscious at early postoperative period. CONCLUSION: We described the role of neurosurgery in the lives of two famous musicians, George Gershwin and Maurice Ravel. A picture taken 1928, shows the developing of Neurosurgery from first half of 20th century to current.