相关实验视频
Updated: Jul 11, 2026

05:07
CO2-Lasertonsillotomy Under Local Anesthesia in Adults
Published on: November 6, 2019
24.0K
[使用CO2激光进行双边声带的同时双边和单边后声带切除的比较研究]
概括
与双边切除相比,单边后声带切除在双边声带中提供了更好的语音和吞功能恢复. 然而,双边切除显示出更高的一次性输出率,可能减少重新手术的需要.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 喉外科手术 喉外科手术
- 激光手术 激光手术是一种激光手术.
背景情况:
- 双边声带麻在气道管理和声功能方面带来了重大挑战.
- 内镜CO2激光后部带状切除术是一种治疗选择,可以考虑单边和双边的方法.
研究的目的:
- 为了比较单边和双边后声带切除使用CO2激光治疗双边声带的疗效.
- 分析术后的结果,包括两种手术方法之间的吞功能,口腔大小和声乐功能.
主要方法:
- 对110名双边声带的患者进行了回顾性分析,这些患者接受了内镜CO2激光后部带状切除术.
- 在单侧 (n=63) 和双侧 (n=47) 带状切除组之间,术前和术后的吞功能,喉腔大小和声功能 (主观和客观) 的比较.
- 使用威尔科克森签名等级和曼-惠特尼U测试进行统计分析.
主要成果:
- 与单边切除组 (71.4%) 相比,双边切除组的单次切除率 (87.2%) 显著更高.
- 在手术后,单侧带切除术在一周后显著改善了吞功能的得分,后侧喉直径更小.
- 声功能评估 (GRBAS,VHI-10,动,闪,HNR,MPT) 在单边带状切除组显著改善.
结论:
- 用二氧化碳激光进行单侧后声带切除是有效的,提供更快的恢复,保存声管功能,以及双边声带的并发症较少.
- 双边切除显示出更高的一次性输出率,可能简化了气道管理.
- 这些发现为选择治疗双边声带的手术方法提供了指导.
相关概念视频
¹³C NMR: ¹H–¹³C Decoupling
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
Difference from Background: Limit of Detection
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
The LOD indicates the presence or absence...
Double Resonance Techniques: Overview
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...

