Karp BI

[BACKGROUND] Chronic pelvic pain affects one in four women. Botulinum toxin, approved for chronic migraine and cervical dystonia pain, is an emerging treatment for other pain conditions. We evaluated intramuscular pelvic floor botulinum tox…

Botulinum toxin is being explored as a treatment for chronic pelvic pain, a major cause of suffering and disability in both women and men worldwide. For chronic pelvic pain in women, botulinum toxin may be injected into pelvic floor muscles…

Botulinum toxin is a targeted therapeutic that acts primarily at the site of injection. Various approaches have been taken to guide injection into the selected muscle, gland, organ or other body area. Guidance methodologies that can be used…

Botulinum toxin is considered first-line treatment for focal hand dystonia in musicians. Mild, temporary weakness is a common accompaniment of effective injection. We present a unique case of delayed-onset, severe, prolonged weakness and at…

Botulinum toxin (BoNT) injection can safely be done as an office-based procedure, but can be painful itself, especially when injecting pelvic floor muscles to treat chronic pelvic pain (CPP). Mindfulness interventions may reduce procedure-a…

Chronic pain conditions like genito-pelvic pain penetration disorder and chronic pelvic pain cause significant morbidity in women worldwide and yet are underdiagnosed and undertreated. While the use of botulinum toxin for pain conditions ha…

[BACKGROUND] Botulinum neurotoxin (BoNT) injection is an established therapy for limb spasticity and focal limb dystonia. Comparative benefits of injection guidance procedures have not been rigorously studied. [OBJECTIVES] We compared 2 ta…

Chemodenervation of cervical musculature using botulinum neurotoxin (BoNT) is established as the gold standard or treatment of choice for management of Cervical Dystonia (CD). The success of BoNT procedures is measured by improved symptomol…

With this retrospective, single center, chart review study, we investigate the self-reported benefit and weakness after botulinum toxin injections in three different types of dystonia: focal hand dystonia (FHD), blepharospasm and cervical d…

[INTRODUCTION AND HYPOTHESIS] Botulinum toxin (BoNT) is increasingly used for pain, especially with muscle spasm. We describe our methodology for BoNT treatment of chronic pelvic pain (CPP) in women and place it in the context of the litera…

[BACKGROUND AND OBJECTIVES] Many women with endometriosis continue to have pelvic pain despite optimal surgical and hormonal treatment; some also have palpable pelvic floor muscle spasm. We describe changes in pain, spasm, and disability af…

We thank the authors for their detailed letter and salient comments related to our article on Ultrasound Guidance for botulinum toxin (BoNT) injections.[...].…

Chronic pelvic pain is a frustrating symptom for patients with endometriosis and is frequently refractory to hormonal and surgical management. While these therapies target ectopic endometrial lesions, they do not directly address pain due t…

Injections of botulinum neurotoxins (BoNTs) are prescribed by clinicians for a variety of disorders that cause over-activity of muscles; glands; pain and other structures. Accurately targeting the structure for injection is one of the princ…

Selection of muscles for botulinum toxin injection for limb dystonia is particularly challenging. Limb dystonias vary more widely in the pattern of dystonic movement and involved muscles than cervical dystonia or blepharospasm. The large va…

Blepharospasm is a focal dystonia characterized by involuntary, repetitive eye closure. Orofacial and oromandibular dystonia describe involuntary dystonic movements of orofacial and oromandibular musculature. Hemifacial spasm is characteriz…