毒素用于治疗雷诺现象的使用
Manasa H Kalluri1, Armin Edalatpour1,2, Allison J Seitz1,2
1From the Division of Plastic and Reconstructive Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI.
Plastic and reconstructive surgery. Global open
|February 26, 2026
概括
用于手部雷诺现象 (RP) 的肉毒素注射可以导致显著的肌肉衰弱. 需要进一步的研究来了解肉毒素扩散及其对RP患者手部功能的影响.
科学领域:
- 神经学 神经学
- 血管医学 血管医学
- 皮肤病学 皮肤病学
背景情况:
- 雷诺现象 (RP) 是一种影响数字动脉的血管动性疾病,导致疼痛和功能限制.
- 毒素是一种耐火性RP的非标签治疗方法,通常被认为是耐受良好.
- 在我们的机构中,常用的是incobotulinumtoxinA (Xeomin) 和abobotulinumtoxinA (Dysport).
研究的目的:
- 报告使用印博胺毒素A (Xeomin) 治疗手部雷诺现象的情况.
- 描述INCOBOTULINUMTOXINA注射用于RP的结果和潜在副作用.
主要方法:
- 两名双边雷诺现象不耐保守和医疗治疗的患者在他们的手中注射了incobotulinumtoxinA.
- 在注射后的四周内,对临床结果和不良事件,特别是肌肉衰弱进行了监测.
主要成果:
- 两名患者在注射印博毒素A后一周,手部出现严重的,广泛的肌肉衰弱,包括内在肌肉,肌肉和下肌肉.
- 这种肌肉软弱持续了至少四周,没有改善.
- 虽然治疗通常是安全的,但观察到的肌肉衰弱对患者的功能有害.
结论:
- 对于手部雷诺现象,注射IncobotulinumtoxinA可以导致长期和显著的肌肉衰弱.
- 需要进一步的研究来研究手中的不同毒素A配方的扩散特征.
- 了解毒素扩散对于减轻雷诺现象患者功能障碍等风险至关重要.
相关概念视频
Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin
1.3K
Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
The binding of dantrolene to the RYR1...
The binding of dantrolene to the RYR1...
1.3K
Skeletal Muscle Relaxants: Therapeutic Uses
1.1K
Skeletal muscle relaxants are used to relax muscle tone and alleviate painful muscle contractions. However, the choice of skeletal muscle relaxants depends on the duration of the surgical procedure in order to minimize potential side effects. Skeletal muscle relaxants like neuromuscular blocking agents [NMBAs] are commonly employed as adjuvants alongside general anesthetics in clinical settings. NMBAs are also used to maintain controlled ventilation during surgery of the larynx or pharynx...
1.1K
Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia
1.6K
Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...
One of the advantages of...
1.6K
Antianginal Drugs: Calcium Channel Blockers and Ranolazine
1.6K
Angina pectoris, a primary symptom of ischemic heart disease, requires careful pharmacological interventions. In this context, calcium channel blockers (CCBs) and ranolazine have emerged as crucial pharmacotherapeutic agents, providing deep insights into the complexities of angina management.
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...
1.6K
Myasthenia Gravis: Overview and Treatment
3.1K
Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
3.1K
Antihypertensive Drugs: Vasodilators
2.3K
Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
2.3K


