58 research outputs found
Application of Prospective Structural Analysis for Identification of Strategic Variables in the Future Development of Baneh City in Iran
In-office Functional Nasal Surgery
Nasal airway obstruction is a common complaint encountered by the otolaryngologist. In-office nasal procedures are becoming increasingly popular, and should be considered for patients desiring immediate treatment without the adverse effects of general anesthesia, operating room costs or scheduling delays. In this paper, we discuss the factors in patient selection, room set-up, and other considerations. We discuss the options available for in-office treatment for nasal valve repair including turbinoplasty, septoplasty, and nasal valve repair/functional rhinoplasty-type techniques described in our literature
Pediatric Midface Fractures: Outcomes and Complications of 218 Patients
Objective
To analyze management, outcomes, and complications of pediatric midface fractures.
Methods
Retrospective cohort study at an urban, single‐institution, multispecialty surgical teams, at two level 1 pediatric trauma centers. Query included subjects aged 0–17 diagnosed with midface fractures between 2012 and 2016.
Results
A total of 218 pediatric patients presented with 410 total midface fractures. The most common etiologies included motor vehicle collisions (MVC) (n = 56, 25.7%), sport‐related (n = 35, 16.1%), and assault/battery (n = 32, 14.7%). Fracture site distribution included: 125 maxillary (34 with exclusively the nasal/frontal process), 109 nasal, 47 ethmoid, 40 sphenoid, 33 zygoma, 29 frontal sinus, 21 lacrimal, and 6 palatal. Among these, there were 105 orbital, 17 naso‐orbito‐ethmoid, and 12 Le Fort fractures. One‐quarter of patients received at least one midface‐related operation during the initial encounter. Operative intervention rates for specific midface fracture subsites were not significantly different (X2 = 6.827, P = .234). One hundred thirty‐five patients (63.4%) attended follow‐up, thus known complication rate was 14.6% (n = 31). Complication rates between midface fracture subsites were not significantly different (X2 = 5.629, P = .229). Complications included facial deformity (n = 18), nasal airway obstruction (n = 8), diplopia (n = 4), hardware‐related pain (n = 3), and paresthesias (n = 3).
Conclusions
The most common sites of pediatric midface fractures involved the maxilla, and nasal bones. Three quarters of pediatric midface fractures were treated conservatively, with low rates of complications. Facial deformity was the most common complication; as such, proper management and follow‐up are important to ensure normal growth and development of the pediatric facial skeleton.
Level of Evidence
A hybrid technique to address exposure keratopathy secondary to facial nerve paresis: A combination of a lateral tarsorrhaphy and lateral wedge resection
Purpose
To present the results of treating combined lower eyelid laxity, retraction and midface descent secondary to facial nerve weakness with a hybrid surgical procedure.
Materials and methods
A retrospective analysis of patients from January 2015 to January 2017 who underwent a hybrid surgical technique for the treatment of corneal exposure secondary to facial nerve paresis with a single surgeon was performed. Age, gender, and presence of exposure symptoms were recorded pre-operatively. Outcomes assessed included improvement of lower eyelid laxity and position, operative complications, and post-operative symptomatic relief.
Results
A total of 11 patients underwent unilateral eyelid surgery. All patients had symptomatic relief and good functional outcomes defined as improvement in eyelid laxity, lower eyelid position, and objective corneal exposure. No cases required reoperation during an average follow up of 174.5 days.
Conclusions
Combining portions of a tarsorrhaphy and lateral wedge resection technique is a simple and effective procedure to improve lower eyelid position and limit corneal exposure secondary to facial nerve paresis
The association of weather, temperature, and holidays on pediatric maxillofacial trauma
Objective
To evaluate the association of weather, seasons, months and holidays on the frequency and pattern of pediatric facial fractures.
Methods
Retrospective review of pediatric patients treated for facial fractures at two Level I trauma centers in a midsize Midwestern US city over a 5‐year period. Patients were included only if presentation was within 3 hours of inciting trauma, transfers from other facilities were excluded. Demographic characteristics, fracture patterns, operative interventions, weather data, and local public school schedules were acquired and associations were analyzed with unpaired t tests, χ2, multivariate and binomial regression model analyses.
Results
Two hundred and sixty patients were included. The average age (SD) was 11.8 (5.0) years, with 173 males and 87 females. The highest distribution of presentations occurred in the summer season (35.0%), on weekends and holidays (58.1%), and when the weather was described as clear (48.5%). The most common mechanisms of injury were motor vehicle collisions (25.8%), followed by sports—(21.5%) and assault—(16.5%) related injuries. Mechanisms were significantly associated with certain fracture patterns. Older age was associated with fewer orbital fractures (P < .01). Seventy‐five patients (28.8%) required operative intervention. Age was found to impact the likelihood of operative intervention (Exp(β) = 1.081, P = .03) while weather, temperature, and mechanism did not.
Conclusion
Pediatric facial fractures are linked to warmer weather with clear skies and warmer season. Age predicts some fracture patterns and need for operative intervention. These results can be used to inform public health interventions, policymaking, and trauma staffing.
Level of Evidence: Level 2b (retrospective cohort)
Hair-bearing human skin generated entirely from pluripotent stem cells
The skin is a multilayered organ, equipped with appendages (that is, follicles and glands), that is critical for regulating body temperature and the retention of bodily fluids, guarding against external stresses and mediating the sensation of touch and pain1,2. Reconstructing appendage-bearing skin in cultures and in bioengineered grafts is a biomedical challenge that has yet to be met3-9. Here we report an organoid culture system that generates complex skin from human pluripotent stem cells. We use stepwise modulation of the transforming growth factor β (TGFβ) and fibroblast growth factor (FGF) signalling pathways to co-induce cranial epithelial cells and neural crest cells within a spherical cell aggregate. During an incubation period of 4-5 months, we observe the emergence of a cyst-like skin organoid composed of stratified epidermis, fat-rich dermis and pigmented hair follicles that are equipped with sebaceous glands. A network of sensory neurons and Schwann cells form nerve-like bundles that target Merkel cells in organoid hair follicles, mimicking the neural circuitry associated with human touch. Single-cell RNA sequencing and direct comparison to fetal specimens suggest that the skin organoids are equivalent to the facial skin of human fetuses in the second trimester of development. Moreover, we show that skin organoids form planar hair-bearing skin when grafted onto nude mice. Together, our results demonstrate that nearly complete skin can self-assemble in vitro and be used to reconstitute skin in vivo. We anticipate that our skin organoids will provide a foundation for future studies of human skin development, disease modelling and reconstructive surgery
Measurement of Spatial and Cultural Disparities between Towns Using the VIKOR Model (Case study: Towns of Kermanshah)
Culture is one of the utmost important issues affecting behaviors in human communities. In most developing countries, the cultural development is taken into account as one of the main parameters of the development process. Thus to plan, and to allocate resources and funds between different regions, identifying the position of the region in the relevant sector and ranking the privilege of development benefits are essential. The present study aims to assess and analyze the level of cultural development and regional inequality among the towns of Kermanshah Province through Entropy-VIKOR model. A descriptive, quantitative and analytical research approach is used to describe the statistical population including 14 towns of Kermanshah Province. In this research project, 20 cultural indices have been used for ranking and positioning each town in four ranks including Developed (high -privileged), Developing (privileged), under developed (semi- privileged) and the least developed (not-privileged). The findings have revealed that only Islam Abad Qarb and Kermanshah (the capital of Kermanshah Province) are ranked first and among the developed towns; Sahneh is placed in the developing rank; Kangavar, Sonqor, Harsin, Paveh, Sarpol Zahab, Gilan Qarb, Qasre Shirin are among the under-developed towns, and Ravansar, Dalahou, Salas Babajani and Javanroud among the least developed ones. The results indicate that regional cultural inequalities are extremely high in the province and quite against the social equality, which significantly illustrates the necessity of equal distribution of cultural resources and services in terms of cultural development
- …
