The principal arterial supply of the head and neck are the two Common Carotid Arteries (CCA), they ascend in the neck and each divides into two branches, the External Carotid Artery (ECA) supplying the exterior of the head, neck and the Internal Carotid Artery (ICA) supplying the cranial and orbital cavities. Atherosclerosis of the carotid arteries is a major cause of stroke and transient ischemic attack and it increases with age. The present study was observational based descriptive type, conducted to identify the CCA bifurcation in relation to cervical vertebral level. A total number of 18 cadavers (16 males and 2 females), right and left side of cadavers were studied by dissection method in the Department of Anatomy, NMCTH from February 2020 to February 2021. The ethical approval was taken from NMC- IRC (Ref no- 026-076/077). In present study the frequency of CCA bifurcation in sixteen male Nepalese cadavers (32 samples) on the right and left side was observed and found high level of bifurcation on 31.25% and 37.5% respectively and normal/ standard on the right and left on 68.75% and 62.5% and there were no findings of low bifurcation of CCA. In two female cadavers (4 observations) the level of bifurcation was same on both the side at the level of C3-C4. The Carotid artery injury is possible in different neurological and head and neck surgery. Therefore, the knowledge of variation in level of bifurcation of CCA in different population will be referential to reduce the iatrogenic injury.
Background and objectives: The present study was conducted to explore the mean age at menarche and associating factors among the Nepali school girls of Jorpati, Kathmandu. Materials and methods: The 500 girls of aged between 9-18 years were collected from the seven school of Gokarneshowr Municipality, Jorpati, Kathmandu after taking ethical clearance from NHRC. The healthy girls without any growth-related disorders and genetic abnormalities were included in the study. The consent was taken from the school authority and individual student by providing written consent and ascent form. The data thus collected were tabulated and analyzed by using SPSS 16. Results: The age at menarche of the respondents was 12.56 ±1.12years and menarchial age varied from 9-16 years. Similarly, the mean age at menarche of sisters and mothers were 12.96 ± 1.25 and 14.30 ± 1.58 respectively. The mean age at menarche of vegetarian group was 12.42 years as compared to non-vegetarian was 12.58 years. The lowest mean age at menarche was in Newar (12.30 years) and highest mean age at menarche in Limbu (13.33years). Followed by age at menarche in Brahmin (12.58 years), Chhetri (12.74 years), Rai (12.60 years), Lama (12.43 years), Gurung (12.66 years) and others (12.56 years). Conclusions: There was decrease in age at menarche with successive generation as a result of increase in urbanization, better dwelling and smaller family size as compared to previous generation.
The human heart valve is an integral structure and the valvular heart disease is one of the most common disease of the heart. Such cardiac disease require repair of the valve and valve replacement surgery where the patient’s diseased valve is replaced by a prosthetic valve. The aim of this study was to measure the annular circumferences and diameters of tricuspid and mitral valves in cadavers. A morphometric study was conducted in Department of Anatomy at Nepal Medical College and Teaching Hospital where total 50 cadaveric hearts were taken up for the study. The tricuspid and the mitral valves were exposed by dissection method. Measurements were taken by using a thread and a digital vernier caliper and obtained data were analysed by using SPSS-16. The mean, frequency and standard deviation of circumferences and diameters of both tricuspid and the mitral valves were analysed and were found as (a) The mean annular circumference of tricuspid valve was 11.22 ± 0.20 cm (b) The mean diameter of tricuspid valve was 2.33 ± 0.04 cm. (c) The mean annular circumference of mitral valve was 9.22 ± 1.49 cm (d) the mean diameter of mitral valve was 2.01 ± 0.27 cm. There were few literatures available on the study of cadaveric heart valves in Nepal thus this study will provide a guideline to the clinicians, radiologists and also to cardiothoracic surgeons performing various valve surgeries to assess the prosthetic valve of appropriate size and to the anthropologists also to maintain a standardized data on cardiac valves as well.
Each kidney is usually supplied by a single renal artery which is a lateral branch of abdominal aorta at the level of L1.The arteries supplying the kidneys show variation in the number, source and branching pattern which also include the presence of an accessory or additional and aberrant renal arteries. The additional renal artery towards the lower pole will cross the corresponding ureter and even cause ureteric obstruction. The segmental branches of renal and additional renal arteries are end arteries thus the accidental damage to these arteries can cause ischemia or necrosis and other pathological conditions. The main objective of this study was to note the variations of the arteries supplying the kidneys. An observational study was conducted on thirty kidneys of fifteen cadavers which included the kidneys of both sides. The study was conducted in Department of Anatomy of Nepal Medical College Teaching Hospital during the period between July 2018 to June 2019 and the variations were recorded as (a) single main renal arteries were found in 80% specimens on both sides (b) early division of main renal arteries were found in 16.66 % on both sides (c) origin of main renal arteries were at higher level on left side in 16.66 % (d) presence of additional renal arteries were found in 20% on both sides. This study will be helpful to cryosurgeons and also to radiologists performing various interventional radiological procedures.
Palmaris longus is a thin fusiform shaped muscle which terminates as a long slender tendon and enters the palmar aponeurosis of the hand. It is also one of the most variable muscles in the body. The main objective of this study was to detect its tendon in both hands and to compare and analyse it in relation to gender and hand dominance. An observational, descriptive study was conducted over a period of 11 months from October 2021 – August 2022 in the Department of Human Anatomy of Nepal Medical College and Teaching hospital, Gokarneshwor – 8, Kathmandu, Nepal. Following tests were conducted for its detection. 1. Schaeffer’s, 2. Thompson’s, 3. Mishra’s test I, 4. Mishra’s test II and Pushpakumar’s test. The results obtained showed that presence of left palmaris longus was more in left handed individuals which was statistically significant with p – value of 0.025. Similarly, presence of right palmaris longus was more in right hand dominant participants. Among the left hand dominant participants, left palmaris longus agenesis was more common in female which was also found to be statistically significant with p-value of 0.009. The knowledge regarding the palmaris longus tendon is of growing interest to surgeons these days for its augmentation, ptosis correction and in facial paralysis management. It gains its importance for autograft as it fulfills the requirement of length, diameter and availability. Hence the study regarding the palmaris longus tendon in relation to its hand dominance and gender can be helpful to surgeons working in various fields.
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