: Embouchure problems in wind players can severely affect musical performance. The complexity of the embouchure involves peri-oral musculature, which is essential for controlling airflow and tone production but is prone to injuries from overuse or misuse. The current literature lacks guidance on utilizing ultrasound for diagnosing embouchure-related injuries.
View Article and Find Full Text PDFAsia Pac J Ophthalmol (Phila)
October 2024
Purpose: To describe the long-term outcomes of phacotrabeculectomy from a tertiary glaucoma service in Singapore.
Design: Retrospective case series.
Methods: Seven hundred ninety-six eyes of 698 patients who underwent phacotrabeculectomy surgery at the Singapore National Eye Centre between 2005 and 2007 with a minimum follow-up of three years were included.
Background: Occipital neuralgia is a debilitating condition, and traditional treatments often provide limited or temporary relief. Recently, ultrasound-guided hydrodissection of the greater occipital nerve (GON) has emerged as a promising minimally invasive approach.
Objectives: To describe two novel ultrasound-guided hydrodissections with 5% dextrose for GON and discuss their advantages, disadvantages, and considerations.
Chronic pain is a complex condition that often poses diagnostic and management challenges due to its multifactorial etiology. This case report describes a 49-year-old pastor who presented with a three-year history of chronic pain affecting multiple sites, including the neck, bilateral shoulders, thoracic region, lower back, and bilateral knees. Additionally, he experienced shortness of breath on mild exertion, which adversely affected his ability to converse and speak publicly.
View Article and Find Full Text PDFThe paraspinal muscles of the cervical, thoracic, and lumbar spine are important pain generators because muscle strains or myofascial pain syndrome caused by trigger points are common during clinical practice. Ultrasonography is the most convenient imaging tool for evaluating these muscles due to its advantages, such as providing good delineation of soft tissues, easy accessibility, and zero radiation. Additionally, ultrasound can serve as a useful guiding tool for paraspinal muscle intervention to prevent inadvertent injuries to vital axial neurovascular structures.
View Article and Find Full Text PDFMost subscapularis and serratus anterior muscles lie between the scapula and the thoracic cage. Evaluation of this area in patients with scapulothoracic dyskinesis, snapping scapular syndrome, or interscapular pain can provide valuable information to clinicians. However, ultrasound scanning of pathologies in this area is hindered by anatomical limitations.
View Article and Find Full Text PDFAssessment of the posterior lateral knee pain poses diagnostic challenges, requiring accurate evaluation of various structures in light of the medical history and physical examination. Despite substantial progress in the ultrasonographic diagnosis of musculoskeletal disorders, the current protocol (EURO-MUSCULUS/USPRM. Basic scanning protocols for knee) fails to conduct a comprehensive investigation into the intricate, tendons, and ligaments of the posterior lateral knee.
View Article and Find Full Text PDFThis report presents the first case of painful anterior shoulder snapping due to a thickened, fibrotic bursa snapping between the subscapularis and the short head of the bicep during external and internal rotation of the humerus. A 46-year-old presented with a 10-month history of on-and-off anterolateral right shoulder pain and snapping. Direct treatment to the anterior suspected lesions partially and temporarily relieved the pain but did not reduce the snapping.
View Article and Find Full Text PDFCurrent non-surgical treatment for peripheral entrapment neuropathy is considered insignificant and unsustainable; thus, it is essential to find an alternative novel treatment. The technique of perineural injection therapy using 5% dextrose water has been progressively used to treat many peripheral entrapment neuropathies and has been proven to have outstanding effects in a few high-quality studies. Currently, the twentieth edition of Harrison's Principles of Internal Medicine textbook recommends this novel injection therapy as an alternative local treatment for carpal tunnel syndrome (CTS).
View Article and Find Full Text PDFPurpose: To describe the clinical features and surgical outcomes of patients experiencing a spontaneous conversion of a lamellar macular hole (LMH) to a full-thickness macular hole (FTMH).
Design: Retrospective, multicenter, observational case series.
Participants: Patients with LMH who experienced a spontaneous conversion to FTMH and underwent FTMH surgery.
Int J Min Sci Technol
January 2021
Many states rely upon the Pennsylvania 1957 Gas Well Pillar Study to evaluate the coal barrier surrounding gas wells. The study included 77 gas well failure cases that occurred in the Pittsburgh and Freeport coal seams over a 25-year span. At the time, coal was mined using the room-and-pillar mining method with full or partial pillar recovery, and square or rectangle pillars surrounding the gas wells were left to protect the wells.
View Article and Find Full Text PDFIntroduction: Patients with a confirmed germline mutation in the von Hippel-Lindau (VHL) tumor suppressor gene have been followed at the National Cancer Institute since the 1980s. In this study, we identify VHL patients with pheochromocytoma and long-term follow-up to determine the best candidates for active surveillance and surgical resection.
Methods: A prospectively collected database of patients with a confirmed germline VHL mutation was reviewed to identify patients with a history of pheochromocytoma and at least 10 years of follow up.
Nerve hydrodissection (HD), a technique used when treating nerve entrapments, involves the injection of an anesthetic, saline, or 5% dextrose in water to separate the nerve from the surrounding tissue, fascia, or adjacent structures. Animal models suggest the potential for minimal compression to initiate and perpetuate neuropathic pain. Mechanical benefits of HD may relate to release of nervi nervorum or vasa nervorum compression.
View Article and Find Full Text PDFPurpose: To characterize the timing of large submacular hemorrhage (SMH) secondary to neovascular age-related macular degeneration (AMD) relative to anti-vascular endothelial growth factor (VEGF) therapy.
Design: Retrospective, consecutive case series.
Participants: The study included 46 eyes of 46 patients with large SMH resulting from neovascular AMD selected to undergo pars plana vitrectomy with subretinal tissue plasminogen activator at the Mid Atlantic Retina group of the Wills Eye Hospital.
Radial nerve palsy is not uncommon after humeral shaft fractures. Ultrasound-guided hydrodissection is an emerging treatment for nerve entrapment. Two cases of radial nerve injury after humeral shaft fractures with plate fixation are presented.
View Article and Find Full Text PDFInt J Min Sci Technol
January 2020
Longwall mining has a significant influence on gas wells located within longwall chain pillars. Subsurface subsidence and abutment pressure induced by longwall mining can cause excessive stresses and deformations in gas well casings. If the gas well casings are compromised or ruptured, natural gas could migrate into the mine workings, potentially causing a fire or explosion.
View Article and Find Full Text PDFVitreous floaters are common, related to age, myopia, genetic predisposition, and infiltration of the vitreous body. A subset of patients report symptoms impacting their quality of vision. Treatment with laser vitreolysis, the use of an Nd:YAG laser to vaporize the collagenous vitreous opacities appears to be used more frequently; however, data regarding long-term safety and effectiveness are lacking.
View Article and Find Full Text PDFUltrasound has been increasingly used in the musculoskeletal system, including the spine. In this protocol, the probe positionings, anatomical relationships, and ultrasound images of commonly scanned spinal structures are described. With an international consensus of several expert physiatrists i.
View Article and Find Full Text PDFPurpose: To evaluate refractive outcomes after combined pars plana vitrectomy (PPV) and scleral fixation of an intraocular lens (IOL) using Gore-Tex suture.
Design: Retrospective cohort study.
Participants: Fifty-five eyes from 53 patients who underwent PPV with a Gore-Tex sutured IOL from June 2013 through December 2017.
Purpose: To report the rate, risk factors, and outcomes of rhegmatogenous retinal detachment (RRD) after intravitreal injection of anti-vascular endothelial growth factor medications.
Design: Single-center, retrospective, consecutive review.
Participants: All patients receiving ranibizumab, bevacizumab, or aflibercept for neovascular age-related macular degeneration or retinal vein occlusion between October 1, 2014, and October 1, 2017.
Background/aims: Hydroxychloroquine (HCQ) retinopathy may result in severe and irreversible vision loss, emphasising the importance of screening and early detection. The purpose of this study is to report the novel finding of early optical coherence tomography (OCT) abnormalities due to HCQ toxicity that may develop in the setting of normal Humphrey visual field (HVF) testing.
Methods: Data from patients with chronic HCQ exposure was obtained from seven tertiary care retina centres.
Roof falls in longwall headgate can occur when weak roof and high horizontal stress are present. To prevent roof falls in the headgate under high horizontal stress, it is important to understand the ground response to high horizontal stress in the longwall headgate and the requirements for supplemental roof support. In this study, a longwall headgate under high horizontal stress was instrumented to monitor stress change in the pillars, deformations in the roof, and load in the cable bolts.
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