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Demographic features of children with external hydrocephalus at Taleghani educational & treatment center (2009-2011)
Sepideh Amouian, Safieh Kholus Makhtumi, Maryam Mohammad Khani, Mahin Nomali,
Volume 1, Issue 2 (10-2013)
Abstract

Background & objective: But its etiology is unknown. Based on deficiency of epidemiological studies, this study Family and genetic factors are effective on incidence of external hydrocephalus aimed to determine the demographic features of children with external hydrocephalus.

Methods: Referred to Taleghani tertiary hospital during 2009-2011 were assessed. Inclusion criteria In this retrospective descriptive study (2011), all records of children with external hydrocephalus was definite diagnosis of external hydrocephalus. Checklist was used for data collection. All data were entered to SPSS software (version 16) and were described by descriptive statistics.

Results: (48.8%), 32 cases born by cesarean section (78%), 31 cases (75.6%) with no consanguineous marriage of parents, 38 cases (92.7%) born at term gestational age, 24 cases (58.53%) with macrocephaly in family, 17 cases (41.5%) with hospitalization history, 39 cases (95.1) with normal birth weight were assessed. Mean of age and head circumference were 8.8±2.8 years and 35.15±1.5 cm, respectively. Increase of head circumference with 30.2 % was the most common complaint at referred time during health cares. 33 cases (80.5%) diagnosed based on CT scan and 11 cases (26.8%) had development delay. From 41 children included to the study, 33 boys (80.5%), 20 cases with Fars ethnicity

Conclusion: Of head circumference during health cares had the most frequency of external hydrocephalus. Much more attention to these children and early diagnosis and treatment is essential. Boys children with fars ethnicity, macrocephaly history, developmental delay and increase.


Prevalence, dimension and location of retromolar canal on cone beam computed tomography: An Analytical cross sectional study
Khalil Sarikhani Khorami , Fatemeh Ezoddini Ardakani , Yaser Safi , Motahare Baghestani,
Volume 7, Issue 3 (9-2019)
Abstract
Background and objectives: The retromolar canal is an anatomical variant that needs consideration in local anesthesia and surgical procedures involving the retromolar area. Complications such as local anesthetic insufficiency, a sensory deficit, hemorrhage and traumatic neuroma may arise in the absence of recognition of these variants. The aim of this study is to determine the prevalence and course of retromolar canal in the Iranian population.
Methods: This study is a descriptive cross sectional study. The cross sectional sagittal and three dimensional images from volumetric CBCT. data of 270 patients were reconstructed using on demand imaging analysis software. Retromolar canals were classified into two types according to the courses. The width and location (distance from the third molar) of retromolar canals were evaluated. Results were analyzed with SPSS 20 software and were assessed using the t_test and chi_square test.
Results: Retromolar canal was observed in 9/25 % of patients. The mean width of the retromolar foramen was 1/43 mm, and the mean distance from anterior border of retromolar foramen to the distal CEJ of the second molar was 13/33 mm.
Conclusion: The prevalence of retromolar canals in the Iranian population was lower than that was reported in previous studies. It can be observed in 9/25 % of Iranian patients.  Damage to the retromolar canal may be unavoidable during surgical procedures may result in paresthesia, excessive bleeding, postoperative hematoma, or traumatic neuroma. Therefore, the clinician must pay particular attention to the identification of a retromolar canal by preoperative radiographic examination and additional CBCT scanning is recommended.

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