Estimation of teeth-to-vallecula distance for prediction of optimal oropharyngeal airway length in young children.
نویسندگان
چکیده
BACKGROUND Estimation of teeth-to-vallecula distance would facilitate the selection of properly sized oropharyngeal airways in young children. The aims of the present study were to measure the teeth-to-vallecula distance and to create an algorithm to predict this distance based on anatomical landmarks and patient characteristics in children. METHODS Two hundred children, aged 1-9 yr, undergoing elective surgery were investigated. After induction of general anaesthesia, the distance from the teeth to the vallecula was measured using a laryngoscope with a straight blade. After intubation, the distances from the mouth angle to the mandible angle and the tragus of the ear were measured with a tape measure. RESULTS The teeth-to-vallecula distance was significantly correlated with the age, weight, height, and external measurements (P<0.001). By stepwise multiple linear regression analysis, a formula was obtained for the teeth-to-vallecula distance (cm) = 3.998 + 0.017 × age (months)+the mouth-to-mandible distance × 0.286 with a high coefficient of determination (r²=0.764). CONCLUSIONS The teeth-to-vallecula distance can be predicted using the age and the mouth-to-mandible distance in young children.
منابع مشابه
Comparison of the upper airways from cephalometric radiographs of children with and without finger-sucking habit.
AIM Finger-sucking in early childhood can induce morphologic changes in the oropharynx and upper airways, which could arise even in children without reported oral breathing. The aim of this study was to compare cephalometric findings in children with and without finger sucking habit with respect to oral breathing. MATERIALS AND METHODS Fifty-six children aged 4 to 12 years (28 with diagnosis ...
متن کاملCephalometric Analysis of Upper Airways in Adults with Class II Malocclusion in Qazvin
Background: Unusual enlargement of nasopharynx can disrupt air flow through the nose. The aim of this study was to investigate the cephalometric parameters in the upper airways. Methods: This retrospective descriptive study was conducted on 32 adults with Class II malocclusion without the history of night apnea in Qazvin. The radiographs were obtained from the...
متن کاملارزیابی دقت یک نوع Electronic Apex Locator در تعیین طول دندانهای شیری (In-vitro)
Statement of Problem: Radiography is the most common technique in working length determination, however, because of its limitations is not considered as an ideal technique. Its application, particularly for children due to radiation hazards, technical problems in young and unco-operative children and the superimposition of permanent teeth bud on primary teeth root, lead to numerous problems.Pur...
متن کاملBedside prediction of airway length in adults and children.
BACKGROUND Malpositioning of the endotracheal tube within the airway leads to serious complications such as endobronchial intubation. Prediction of the correct depth of an endotracheal tube is important and should be individualized. The manubriosternal joint (MSJ) is on the same horizontal plane with the tracheal carina. We compared the straight length from the upper incisor to the MSJ in the f...
متن کاملComparing Pharyngeal Airway Dimensions in Cephalograms of Patients with Different Skeletal Patterns
Background and purpose: Respiratory function of patients is a major part of orthodontic diagnosis and treatment planning. It is affected by the dimensions of the pharyngeal airway. In this study, these dimensions were compared in patients with different skeletal patterns. Materials and methods: This cross-sectional descriptive-analytical study was performed studying the cephalograms of pa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- British journal of anaesthesia
دوره 107 5 شماره
صفحات -
تاریخ انتشار 2011