传统与激光切除术治疗症状性:一个元分析
Chaoyang Wang1, Yihang Liu1, Ziqian Wang1
1Department of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
Journal of the College of Physicians and Surgeons--Pakistan : JCPSP
|February 14, 2026
概括
二极管激光瘤切除术 (DLH) 在治疗症状性方面比常规瘤切除术 (CH) 更有效,更安全. DLH显著减少血液流失,术后出血和疼痛,导致更快的恢复.
科学领域:
- 结肠直肠手术 结肠直肠手术
- 最少侵入性手术的方法
- 激光治疗学 激光治疗学
背景情况:
- 症状性影响着相当一部分人群.
- 传统的出血栓切除术 (CH) 技术,如米利根-摩根 (MMH) 和弗格森 (FH),是标准的治疗方法,但可能涉及相当大的疼痛和恢复时间.
研究的目的:
- 为了比较二极管激光瘤切除术 (DLH) 与常规瘤切除术 (CH) 对症状的疗效和安全性.
- 评估结果,包括输血,疼痛,并发症和复发率.
主要方法:
- 通过全面的数据库搜索 (PubMed,Embase,Cochrane,科学网,Scopus) 识别出13项符合条件的研究进行了系统的元分析.
- 统计分析采用随机效应和固定效应模型,以95%的置信区间 (CI) 报告结果.
- 使用I2统计学来评估异质性.
主要成果:
- 与MMH和FH (MD = -20.19 mL) 相比,DLH显著减少了手术期间的血液损失.
- DLH导致手术后出血率降低 (OR = 0.32) 和手术后疼痛明显减少.
- 在DLH和CH之间没有发现复发率或其他重大并发症的显著差异.
结论:
- 二极管激光瘤整形术 (DLH) 为症状性瘤提供了比传统瘤切除术 (CH) 更优质的替代方案.
- DLH在减少血液流失,术后出血和疼痛方面提供了显著的优势,提高了患者的康复和安全性.
相关概念视频
Sign Convention
3.6K
When analyzing a beam subjected to various loads, it is crucial to understand the internal forces and moments generated within the structure. These internal forces can be broadly classified into normal forces, shear forces, and bending moments. To determine these forces and moments, we use the method of sections and apply a specific sign convention based on their direction and the side of the section being analyzed.
The normal force acts perpendicular to the beam's cross-section and can...
The normal force acts perpendicular to the beam's cross-section and can...
3.6K
Directing Effect of Substituents: meta-Directing Groups
6.1K
Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.1K
Enolate Mechanism Conventions
3.0K
When a carbonyl compound is treated with a strong base, the α position gets deprotonated to give a resonance-stabilized intermediate called an enolate. Enolates are ambident nucleophiles because they possess two nucleophilic sites that can attack an electrophile owing to the delocalization of the negative charge between the α carbon and oxygen atoms. When the oxygen atom attacks an electrophile, it is called O-attack, whereas electrophilic attack via the α carbon is known as...
3.0K
Dose Response Curve: Conventional Versus Nonmonotonic
28
The correlation between a drug's dosage and its impact on a biological system is a cornerstone of pharmacology and toxicology. Conventional dose–response curves, which include graded and quantal relationships, are key to this understanding. Graded dose–response curves depict the spectrum of a biological reaction to different doses within an individual, indicating that as the drug dosage increases, so does the intensity of the response. On the other hand, quantal dose–response...
28
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H
6.8K
All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
6.8K
Matrix-Assisted Laser Desorption Ionization (MALDI)
1.2K
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI is an ionization technique, widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix...
1.2K


