相关实验视频
Updated: Jul 16, 2026

07:35
The Microscopic Transcanal Approach in Stapes Surgery Revisited
Published on: February 16, 2022
2.3K
比较修复上半圆形通道脱的方法
Evan L Tooker1, Christopher A Hamilton1, Samira Takkoush1
1Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, USA.
概括
通过体 (TM) 的方法来修复上半圆通道脱声症 (SSCD) 是比中沟 (MCF) 方法更快,涉及较短的住院时间. 这两种手术方法都为SSCD患者提供了相似的临床和听力学结果.
科学领域:
- 神经外科 神经外科
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 听力学 听力学是指听力学.
背景情况:
- 上半圆通道失听症 (SSCD) 是一种罕见的疾病,导致听觉和前庭症状.
- 手术修复旨在解决这些症状并改善生活质量.
研究的目的:
- 为了比较中脑 (MCF) 与SSCD的跨体 (TM) 手术修复的结果.
- 评估两种方法之间的手术时间,住院时间和临床/听力测试结果的差异.
主要方法:
- 追溯队列研究包括93名接受SSCD修复的受试者 (97只耳朵).
- 收集的数据包括人口统计,手术方法 (MCF或TM),手术时间,住院时间以及手术前后的听力测试.
主要成果:
- 与MCF方法相比,TM方法的中位数手术时间 (118分钟与151分钟) 和住院时间 (15.3小时与67.7小时) 显著缩短.
- 两种MCF和TM方法都实现了可比的症状改善率 (92%),并且在空气导通纯色平均,空气骨间隙或文字识别得分上没有显著变化.
结论:
- TM方法与减少手术时间和住院治疗SSCD修复有关.
- 对于SSCD患者来说,TM和MCF手术技术都提供了类似的临床和听力测量结果.
相关概念视频
Bending of Material: Problem Solving
In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
Major Losses in Pipes
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
Uniform Depth Channel Flow: Problem Solving
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
Optimization Problems
Optimization problems often involve identifying maximum or minimum values under specific constraints. A well-known example is determining the longest horizontal pipe that can be moved around a right-angled corner, where a 3-meter-wide hallway meets a 2-meter-wide hallway. This scenario, common in architectural design and industrial transport, can be understood conceptually through geometric and trigonometric reasoning.To visualize the problem, consider the pipe as a straight line that touches...
Area Problem
Determining the area of a region with straight edges is straightforward, as geometric formulas for rectangles, triangles, and polygons can be applied directly. However, traditional geometric methods are insufficient when a region has a curved boundary, such as the area under a function.fromThe area problem involves finding a systematic way to measure such regions. One approach to solving this problem is through approximation. Instead of attempting to compute the area exactly at the outset, the...
Midpoint Rule
Approximating areas under curved boundaries is a common problem in applied mathematics, particularly when an exact calculation is difficult or impractical. One effective numerical method for this purpose is the Midpoint Rule, which provides an estimate of the area under a curve by using rectangular approximations over a specified interval.Description of the Midpoint RuleThe Midpoint Rule begins by dividing the given interval into a number of equal subintervals. For each subinterval, the...

