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Seminars in Ophthalmology Jul 2022Methicillin-resistant Staphylococcus aureus (MRSA) is an opportunistic pathogen that can cause vision-threatening infections of the ocular surface, orbit, and... (Review)
Review
PURPOSE
Methicillin-resistant Staphylococcus aureus (MRSA) is an opportunistic pathogen that can cause vision-threatening infections of the ocular surface, orbit, and periorbital structures. MRSA decolonization is a widespread technique employed outside of ophthalmology to reduce MRSA transmission and infection rates. Herein we explore whether decolonization protocols have a place in ophthalmology for combatting ocular MRSA infections.
METHODS
We conducted a focused review of the MRSA decolonization literature using PubMed and Cochrane databases to identify key studies in ophthalmology and the broader medical literature.
RESULTS
We summarize the relevance of the recent literature from an ophthalmic perspective, focusing on the clinical evidence supporting pre-operative MRSA decolonization. We also discuss current real-world decolonization practices, existing challenges, and propose recommendations for future opportunities to address these issues.
CONCLUSION
Incorporating pre-operative MRSA decolonization approaches discussed herein may offer a new frontier for enhancing the ophthalmic care of patients colonized with MRSA.
Topics: Humans; Methicillin-Resistant Staphylococcus aureus; Ophthalmologists; Staphylococcal Infections
PubMed: 35188074
DOI: 10.1080/08820538.2022.2039220 -
PLoS Neglected Tropical Diseases Feb 2023Trichinellosis, caused by a parasitic nematode of the genus Trichinella, is a zoonosis that affects people worldwide. After ingesting raw meat containing Trichinella...
BACKGROUND
Trichinellosis, caused by a parasitic nematode of the genus Trichinella, is a zoonosis that affects people worldwide. After ingesting raw meat containing Trichinella spp. larvae, patients show signs of myalgia, headaches, and facial and periorbital edema, and severe cases may die from myocarditis and heart failure. The molecular mechanisms of trichinellosis are unclear, and the sensitivity of the diagnostic methods used for this disease are unsatisfactory. Metabolomics is an excellent tool for studying disease progression and biomarkers; however, it has never been applied to trichinellosis. We aimed to elucidate the impacts of Trichinella infection on the host body and identify potential biomarkers using metabolomics.
METHODOLOGY/PRINCIPAL FINDINGS
Mice were infected with T. spiralis larvae, and sera were collected before and 2, 4, and 8 weeks after infection. Metabolites in the sera were extracted and identified using untargeted mass spectrometry. Metabolomic data were annotated via the XCMS online platform and analyzed with Metaboanalyst version 5.0. A total of 10,221 metabolomic features were identified, and the levels of 566, 330, and 418 features were significantly changed at 2-, 4-, and 8-weeks post-infection, respectively. The altered metabolites were used for further pathway analysis and biomarker selection. A major pathway affected by Trichinella infection was glycerophospholipid metabolism, and glycerophospholipids comprised the main metabolite class identified. Receiver operating characteristic revealed 244 molecules with diagnostic power for trichinellosis, with phosphatidylserines (PS) being the primary lipid class. Some lipid molecules, e.g., PS (18:0/19:0)[U] and PA (O-16:0/21:0), were not present in metabolome databases of humans and mice, thus they may have been secreted by the parasites.
CONCLUSIONS/SIGNIFICANCE
Our study highlighted glycerophospholipid metabolism as the major pathway affected by trichinellosis, hence glycerophospholipid species are potential markers of trichinellosis. The findings of this study represent the initial steps in biomarker discovery that may benefit future trichinellosis diagnosis.
Topics: Animals; Humans; Mice; Trichinella spiralis; Trichinellosis; Antibodies, Helminth; Trichinella; Larva; Lipids
PubMed: 36809241
DOI: 10.1371/journal.pntd.0011119 -
The Cochrane Database of Systematic... Apr 2021Periorbital and orbital cellulitis are infections of the tissue anterior and posterior to the orbital septum, respectively, and can be difficult to differentiate...
BACKGROUND
Periorbital and orbital cellulitis are infections of the tissue anterior and posterior to the orbital septum, respectively, and can be difficult to differentiate clinically. Periorbital cellulitis can also progress to become orbital cellulitis. Orbital cellulitis has a relatively high incidence in children and adults, and potentially serious consequences including vision loss, meningitis, and death. Complications occur in part due to inflammatory swelling from the infection creating a compartment syndrome within the bony orbit, leading to elevated ocular pressure and compression of vasculature and the optic nerve. Corticosteroids are used in other infections to reduce this inflammation and edema, but they can lead to immune suppression and worsening infection.
OBJECTIVES
To assess the effectiveness and safety of adjunctive corticosteroids for periorbital and orbital cellulitis, and to assess their effectiveness and safety in children and in adults separately.
SEARCH METHODS
We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (which contains the Cochrane Eyes and Vision Trials Register) (2020, Issue 3); Ovid MEDLINE; Embase.com; PubMed; Latin American and Caribbean Health Sciences Literature Database (LILACS); ClinicalTrials.gov, and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP). We did not use any date or language restrictions in the electronic search for trials. We last searched the electronic databases on 2 March 2020.
SELECTION CRITERIA
We included studies of participants diagnosed with periorbital or orbital cellulitis. We excluded studies that focused exclusively on participants who were undergoing elective endoscopic surgery, including management of infections postsurgery as well as studies conducted solely on trauma patients. Randomized and quasi-randomized controlled trials were eligible for inclusion. Any study that administered corticosteroids was eligible regardless of type of steroid, route of administration, length of therapy, or timing of treatment. Comparators could include placebo, another corticosteroid, no treatment control, or another intervention.
DATA COLLECTION AND ANALYSIS
We used standard methodological procedures recommended by Cochrane.
MAIN RESULTS
The search yielded 7998 records, of which 13 were selected for full-text screening. We identified one trial for inclusion. No other eligible ongoing or completed trials were identified. The included study compared the use of corticosteroids in addition to antibiotics to the use of antibiotics alone for the treatment of orbital cellulitis. The study included a total of 21 participants aged 10 years and older, of which 14 participants were randomized to corticosteroids and antibiotics and 7 participants to antibiotics alone. Participants randomized to corticosteroids and antibiotics received adjunctive corticosteroids after initial antibiotic response (mean 5.13 days), at an initial dose of 1.5 mg/kg for three days followed by 1 mg/kg for another three days before being tapered over a one- to two-week period. We assessed the included study as having an unclear risk of bias for allocation concealment, masking (blinding), selective outcome reporting, and other sources of bias. Risk of bias from sequence generation and incomplete outcome data were low. The certainty of evidence for all outcomes was very low, downgraded for risk of bias (-1) and imprecision (-2). Length of hospital stay was compared between the group receiving antibiotics alone compared to the group receiving antibiotics and corticosteroids (mean difference (MD) 4.30, 95% confidence interval (CI) -0.48 to 9.08; 21 participants). There was no observed difference in duration of antibiotics between treatment groups (MD 3.00, 95% CI -0.48 to 6.48; 21 participants). Likewise, preservation of visual acuity at 12 weeks of follow-up between group was also assessed (RR 1.00, 95% CI 0.82 to 1.22; 21 participants). Pain scores were compared between groups on day 3 (MD -0.20, 95% CI -1.02 to 0.62; 22 eyes) along with the need for surgical intervention (RR 1.00, 95% CI 0.11 to 9.23; 21 participants). Exposure keratopathy was reported in five participants who received corticosteroids and antibiotics and three participants who received antibiotic alone (RR 1.20, 95% CI 0.40 to 3.63; 21 participants). No major complications of orbital cellulitis were seen in either the intervention or the control group. No side effects of corticosteroids were reported, although it is unclear which side effects were assessed.
AUTHORS' CONCLUSIONS
There is insufficient evidence to draw conclusions about the use of corticosteroids in the treatment of periorbital and orbital cellulitis. Since there is significant variation in how corticosteroids are used in clinical practice, additional high-quality evidence from randomized controlled trials is needed to inform decision making. Future studies should explore the effects of corticosteroids in children and adults separately, and evaluate different dosing and timing of corticosteroid therapy.
Topics: Adrenal Cortex Hormones; Adult; Anti-Bacterial Agents; Bias; Cellulitis; Child; Humans; Length of Stay; Orbital Cellulitis; Pain Measurement; Visual Acuity
PubMed: 33908631
DOI: 10.1002/14651858.CD013535.pub2 -
Archivos de La Sociedad Espanola de... Oct 2023VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is a newly described autoinflammatory entity caused by a UBA-1 gene mutation. Among the most...
VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is a newly described autoinflammatory entity caused by a UBA-1 gene mutation. Among the most frequent symptoms it produces fever, cytopenias, polychondritis, pulmonary infiltrates and up to 40% ocular involvement such as periorbital edema, uveitis, episcleritis, scleritis and retinal vasculitis. Patients respond to high doses of corticosteroids, however, many end up being refractory to them and to the classic immunosuppressants. We described the case of a 77-year-old male patient with ocular involvement in the form of episcleritis and periorbital edema who was later diagnosed with VEXAS Syndrome. The patient, after failing treatment with immunosuppressants, is currently receiving treatment with oral steroids and tocilizumab. Ophthalmologist must be aware of the ophthalmological affectation of autoinflammatory diseases and especially of this new entity described as the VEXAS Syndrome.
Topics: Male; Humans; Aged; Scleritis; Eye Diseases; Eye; Cellulitis; Edema
PubMed: 37595794
DOI: 10.1016/j.oftale.2023.07.004 -
Dermatologic Surgery : Official... Oct 2022The aged face results from a culmination of skin changes, gravitational descent, and volume loss. Surgical interventions in the periorbital region are beneficial for...
BACKGROUND
The aged face results from a culmination of skin changes, gravitational descent, and volume loss. Surgical interventions in the periorbital region are beneficial for addressing these 3 factors. Despite this, studies describing CO2 laser safety settings are lacking.
OBJECTIVE
There is no present consensus on ideal periorbital CO2 laser; therefore, this study evaluates the safety of periorbital laser resurfacing as an adjunct to lower blepharoplasty using robust settings.
MATERIALS AND METHODS
A retrospective review was performed of all patients who underwent bilateral lower blepharoplasty with adjunctive periorbital (upper and lower eyelid) fractionated CO2 laser resurfacing from 2013 to 2018 performed by a single oculoplastic surgeon.
RESULTS
Fifty-nine patients were included. Six patients experienced side effects including postinflammatory hyperpigmentation, (3/59, 5.1%), prolonged superficial excoriations (1/59, 1.7%), prolonged hyperemia (1/59, 1.7%), and lower eyelid retraction requiring lower eyelid recession (1/59, 1.7%). None of the patients developed postoperative infection. All patient expressed satisfaction at their final postoperative visit.
CONCLUSION
CO2 laser resurfacing, even with robust settings, is a safe and effective adjunct to lower blepharoplasty.
Topics: Aged; Blepharoplasty; Eyelids; Humans; Laser Therapy; Lasers, Gas; Skin Aging
PubMed: 35947796
DOI: 10.1097/DSS.0000000000003533 -
BMJ Case Reports Jul 2022Factitious disorder imposed on another, or medical child abuse, has been rarely reported to have primary ocular presentations. We report an unusual and difficult...
Factitious disorder imposed on another, or medical child abuse, has been rarely reported to have primary ocular presentations. We report an unusual and difficult diagnosis of factitious disorder imposed by a mother on her infant resulting in bilateral blindness. An infant was referred with a history of recurrent periorbital cellulitis and sanguineous discharge associated with seizure-like episodes. Symptoms have been going on for more than 14 months, and child had been treated by different physicians from different specialties without a clear ophthalmic diagnosis. The right eye was previously enucleated at an outside hospital for secondary complications of similar symptoms. He was admitted for exhaustive diagnostic tests and multiple surgical treatments, and his hospital stay was complicated with multiple corneal perforations and apnoeic episodes despite optimal treatment. After suspicion of factitious disease, continuous electroencephalography and video monitoring revealed evidence of the mother inflicting physical harm to her child.
Topics: Blindness; Cellulitis; Child; Child Abuse; Factitious Disorders; Female; Hospitalization; Humans; Infant; Male; Mothers
PubMed: 35787502
DOI: 10.1136/bcr-2021-244699 -
Interactive Journal of Medical Research Nov 2023Necrotizing fasciitis (NF) is an aggressive and potentially life-threatening infection of the superficial fascia and surrounding skin, fat, fascia, muscle, and other...
Necrotizing fasciitis (NF) is an aggressive and potentially life-threatening infection of the superficial fascia and surrounding skin, fat, fascia, muscle, and other soft tissue structures. Here, we outline the rare case of a 26-year-old man with a periorbital Streptococcus pyogenes A NF infection. Our case report underscores a unique instance of periorbital NF, distinctively presenting without any predisposing risk factors, shedding light on its presentation, treatment, and pathophysiology.
PubMed: 37971729
DOI: 10.2196/52507 -
Eye (London, England) Nov 2023To evaluate presenting features of patients with orbital solitary fibrous tumours (SFTs), based on histological phenotype.
AIMS
To evaluate presenting features of patients with orbital solitary fibrous tumours (SFTs), based on histological phenotype.
METHODS
A retrospective case-note review was performed for demographics and presenting features for patients with orbital SFTs. The tumours were classified as "Group IA" hypocellular SFT phenotype, "Group IB" haemangiopericytoma phenotype and low mitotic activity, and high-grade "Group II" haemangiopericytoma phenotype with high mitotic activity.
RESULTS
Sixty-four patients (34 female; 53%) presented at a mean age of 42.2 years (median 38; range 19-82), with Group II patients presenting at an older age (mean 53 years). Median symptom duration was 12 months for Groups IA and IB, compared to 4 months for Group II, the commonest symptoms being proptosis (53%), diplopia (41%), periorbital swelling (31%), and altered vision (19%). Mean LogMAR was 0.17 (median 0.0; range -0.2-4), and 14% had ipsilateral optic neuropathy, with no significant difference between the three groups. Non-axial displacement was noted in 69%, a palpable mass in 45%, and reduced eye movements in 59%; choroidal folds and optic disc swelling were recorded in 12% and 9%. SFTs were mostly extraconal (59%), within the superior and superonasal quadrants (44%), with an average estimated tumour volume of 4.9 ml (median 3.6; range 0.31-14.5 ml).
CONCLUSION
SFTs may present with impaired visual function (∼15%), fundal abnormalities (a fifth), globe displacement (two-thirds), and reduced ocular motility (over a half). High-grade tumours tend to present more than a decade later, with a shorter duration of symptoms.
Topics: Humans; Female; Adult; Retrospective Studies; Severe Fever with Thrombocytopenia Syndrome; Hemangiopericytoma; Solitary Fibrous Tumors; Exophthalmos
PubMed: 37061621
DOI: 10.1038/s41433-023-02519-7 -
CEN Case Reports Feb 2022Glomerulonephritis in tuberculosis may be a direct manifestation of renal infection or a result of immune-complex deposition complicating extra-renal infection, such as...
Glomerulonephritis in tuberculosis may be a direct manifestation of renal infection or a result of immune-complex deposition complicating extra-renal infection, such as in pulmonary tuberculosis. A 17-year-old adolescent boy from Somalia was found to have pulmonary tuberculosis during routine health screening performed on entering Malta, with computed tomography of the chest showing scarring and calcification of the left upper lobe, left lower lobe consolidation, and a small left-sided pleural effusion. Five days after starting anti-tuberculous therapy, he developed lower limb and sacral oedema: urinary albumin: creatinine ratio was > 400 µg albumin/mg creatinine, and 24-h urinary protein showed nephrotic-range proteinuria of 4.963 g/day. In view of worsening lower limb, sacral and periorbital oedema and ascites, he was started on oral prednisolone, omeprazole and penicillin V prophylaxis. As heavy proteinuria persisted, a renal biopsy was performed after 8 days of prednisolone treatment, which confirmed the presence of mesangiocapillary glomerulonephritis (MCGN), with electron microscopy showing effacement of the podocytes, with hypercellularity and subendothelial immune deposits, confirming an immune-mediated pathophysiology. Ziehl-Neelsen staining did not reveal acid-fast organisms. The patient received a total of 3 weeks of oral prednisolone with subsequent tailing doses, 2 months of pyrazinamide and ethambutol and 6 months of rifampicin and isoniazid with complete resolution of his clinical and radiological signs, though heavy proteinuria persisted, so he was commenced on oral enalapril. This case highlights the potential association of MCGN with tuberculosis in adolescence. Timely recognition and treatment can prevent progression to chronic kidney disease.
Topics: Adolescent; Albumins; Creatinine; Female; Glomerulonephritis, Membranoproliferative; Humans; Male; Prednisolone; Proteinuria; Tuberculosis; Tuberculosis, Pulmonary
PubMed: 34260011
DOI: 10.1007/s13730-021-00626-6 -
Orbit (Amsterdam, Netherlands) Dec 2022To study the clinical, microbiological profile and management outcomes of orbital abscess at a tertiary care center in South India. (Review)
Review
PURPOSE
To study the clinical, microbiological profile and management outcomes of orbital abscess at a tertiary care center in South India.
MATERIAL AND METHOD
In a retrospective interventional case series, we reviewed all patients diagnosed with orbital cellulitis from 2000-2020. The data analyzed included demographic profile, clinical and radiological features, microbiological profile, and management outcome.
RESULTS
A total of 921 cases of orbital and periorbital infections were reviewed. Seventy-two cases were diagnosed as orbital cellulitis. Thirty-four cases (47.22%) had radiological evidence of orbital abscess. The median age was 20.63 years. Three patients (8.82%) were neonates. A male preponderance was noted (23, 67.65%). Sinusitis (10, 29.41%) and diabetes (5, 14.7%), were the most common predisposing factors. Optic neuropathy was seen in 15 (44.11%) patients, cavernous sinus thrombosis in two patients (5.88%), and septicemia in one patient (2.94%) Multiple orbital abscesses were noted in 7 (20.59%) cases. All patients underwent surgical drainage. was the most common organism isolated in 14 patients (41.18%). Vision improvement or stabilization was seen in all except 3 (8.82%).
CONCLUSION
Orbital abscess is a potential sight-threatening orbital infection. The infective process can spread and ascend up to involve cavernous sinus thereby becoming life-threatening. A timely diagnosis and intervention can halt the disease process and help restore vision in many cases.
Topics: Infant, Newborn; Humans; Male; Young Adult; Adult; Orbital Cellulitis; Abscess; Tertiary Care Centers; Retrospective Studies; Anti-Bacterial Agents; Orbital Diseases
PubMed: 35195044
DOI: 10.1080/01676830.2021.2013901