5-Fluorouracil With Microneedling Modulates Wound Healing in a Murine Model: An Immunohistochemical Analysis of Mechanism and Dose Efficacy.

PURPOSE: The purpose of this study is to assess the dose-dependent immunohistopathological effects of intradermal microneedle-delivered 5-fluorouracil (5-FU) for postincisional wound healing in a murine model. METHODS: A prospective experimental study was performed. Twelve hairless mice were randomized into 4 treatment groups for postincisional wound treatment: microneedling with topical saline, or microneeding with topically-applied 5-FU at concentrations of 25 mg/ml, 50 mg/ml, or 100 mg/ml. Two surgical wounds were created on each animal. Combination wound treatments were performed on postoperative days 14 and 28, and cutaneous biopsies were obtained on day 56. Specimens were analyzed by a dermatopathologist, blinded to the treatment group, for collagen thickness, lymphocytic infiltration, histiocytic response, sub-epidermal basement membrane zone thickness, and myofibroblast density. RESULTS: Histopathologic evaluation showed increased collagen thickness, lymphocyte infiltration, and granuloma density in the groups undergoing microneedling treatment with 5-FU, compared to saline. Immunohistochemical analysis revealed a trend toward thicker basement membranes with higher concentrations of 5-FU used, reaching statistical significance between controls and those treated with 100 mg/ml 5-FU ( p = 0.0493). A trend toward decreasing myofibroblast density with increasing doses of 5-FU was noted. No postincisional or treatment complications were observed. CONCLUSIONS: Our results demonstrate that microneedling is an effective topical subepithelial drug delivery system, and further suggest a beneficial dose-dependent immunomodulatory effect of 5-FU on intermediate wound healing when used in combination with microneedling. We recommend a 5-FU dose at the mid-range 50 mg/ml concentration to simultaneously maximize efficacy and minimize complication risk.

Isolated globe rupture without concomitant eyelid laceration or orbital trauma following facial dog bite injury in a child.

PURPOSE: Facial dog bites often cause periorbital trauma; however, the globe is rarely damaged. Most globe injury following dog bites results from unusual circumstances and typically presents with concomitant periorbital and ocular adnexal injuries. OBSERVATIONS: The case presented is a rare presentation of isolated globe rupture without orbital trauma following facial dog bite in a child without history or evidence of decreased blink reflex, mental deficiency, or substance use. CONCLUSIONS AND IMPORTANCE: Ophthalmic investigation is warranted in all pediatric periorbital dog bite injuries, even in the setting of minimal or absent periorbital trauma. As additional blunt trauma to the globe in the immediate recovery period resulted in a second open globe injury, the critical importance of protective eyewear, activity restriction, and judicious corneal suture removal postoperatively following repair of open globe injury is discussed.

Traumatic intrachoroidal nail implantation.

Penetrating globe injury can lead to serious vision loss and even loss of the eye. Intraocular foreign bodies (IOFBs) are a major cause of traumatic globe injury commonly seen in work-related accidents. We present a unique case of a large IOFB that was fully embedded within the choroid, where enucleation was pursued due to inability to safely remove the IOFB.

Simultaneous presentation of orbital mantle cell lymphoma and endocrine mucin-producing sweat gland carcinoma.

Mantle cell lymphoma is a rare malignancy to present in the orbit, comprising only 1-5% adnexal lymphomas. Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is an equally uncommon adnexal tumor of sweat gland origin that may present on the eyelid. Herein we present a case of a 77-year old man with no previous cancer history who presented with painless progressive left globe proptosis and an enlarging left upper lid margin lesion, ultimately determined upon biopsy to be simultaneous orbital mantle cell lymphoma with systemic involvement and isolated eyelid EMPSGC. The pathogenesis, clinical manifestation, and management for each rare disease entity are reviewed and concept of collision tumors is discussed.

Autologous Fat Transfer Harvest-site Complications: Incidence, Risk Factors, and Management.

PURPOSE: Autologous fat transfer is an effective tool for volume restoration to the aging face. Although numerous reports exist regarding injection site complications, there is limited data on donor-site morbidity in the cosmetic surgery literature. METHODS: This study is a large-scale retrospective review to determine incidence of fat harvest-site complications, identify risk factors, and describe management strategies. Records of all patients who underwent autologous fat harvesting and facial grafting at a single oculofacial plastic surgery practice from 2010 to 2019 were reviewed. Patient demographics and clinical data were collected and assessed. A statistical analysis was performed using a two-tailed T-test with p values of <0.05 considered significant. RESULTS: Four-hundred sixteen patients were followed for an average of 6.2 months postoperatively. There was an overall 5.5% harvest-site complication rate. There was no correlation of harvest-site complications with gender (p = 0.249) or age (p = 0.881). Harvest location did not significantly correlate with complication rate. The most common complications were contour irregularities, prolonged induration, and prolonged erythema. Low body mass index was associated with higher complication rate (p = 0.003), even when excluding those patients with contour irregularities (p = 0.001). Various treatment modalities were used to manage donor-site morbidity with consistent improvement. CONCLUSIONS: Autologous fat transfer used for facial volume augmentation has low donor-site morbidity. Minor harvest-site complications occur more commonly in patients with low body mass index, irrespective of age, gender, or fat source.

Rifle Blast Exacerbating Hearing Loss in a Patient Treated With Teprotumumab for Thyroid Eye Disease.

Teprotumumab is a promising new immunomodulatory therapy for thyroid eye disease. One unique adverse effect observed in clinical trials was hearing impairment; however, all adverse auditory effects in prior clinical trials resolved spontaneously after completion of teprotumumab therapy. The authors present a case of a patient on teprotumumab for thyroid eye disease who experienced sustained hearing loss secondary to shooting a rifle without ear protection. In this case, it is suspected the teprotumumab infusions resulted in increased susceptibility of the inner ear hair cells to noise-induced trauma secondary to IGF-IR inhibition. Specific ear protection protocols may need to be implemented in the future for patients on teprotumumab therapy to prevent sustained hearing loss, especially for susceptible patient populations.

Wound Dehiscence Following Upper Blepharoplasty: A Review of 2,376 Cases.

PURPOSE: There have been limited studies evaluating specifically the incidence of wound dehiscence following isolated upper blepharoplasty. This is a large-scale upper blepharoplasty review to evaluate the rate of wound dehiscence, to assess risk factors, and to analyze management outcomes. METHODS: A retrospective review was performed of all patients who underwent upper blepharoplasty at a single surgery center. All incisions were closed using either 6-0 fast-absorbing plain gut or polypropylene suture in a running fashion, with an additional interrupted suture near the lateral wound edge. Incidence of wound dehiscence was determined and further assessed by patient age (≤67 or >67 years), gender, preexisting medical conditions, smoking history, and suture type. RESULTS: A total of 1,190 patients (2,376 eyelids) met inclusion criteria. In total, there were 34 instances (1.4%) of wound dehiscence in 32 patients at an average 9 days (range, 0-30 days) following surgery. Evaluation of wound dehiscence rates by demographic factors revealed male gender to be a significant predictor of wound dehiscence (p = 0.0062). Age, hypertension, heart disease, and diabetes were not predictors of wound dehiscence. Lifetime smoking history increased risk for wound dehiscence (p < 0.0001). Use of fast-absorbing plain gut suture was also significantly associated with dehiscence, when compared with polypropylene (p = 0.0025). Multivariate analysis revealed male gender and fast-absorbing plain gut suture to be independent risk factors for wound dehiscence. Seventeen eyelids with wound separation were observed for second-intention healing, 1 underwent delayed scar revision. Fourteen eyelids were repaired primarily using suture and 3 with cyanoacrylate surgical skin adhesive. All patients reported satisfaction with their final outcome, and objective final healing was deemed satisfactory. CONCLUSIONS: Wound dehiscence following isolated upper blepharoplasty is rare and associated with male gender and fast-absorbing plain gut suture. Patients with wound separation may be successfully managed with individualized care.

Atypical acute presentation of an optic nerve sheath meningioma.

PURPOSE: Primary optic nerve sheath meningiomas (ONSM) are benign lesions that typically present with findings of painless proptosis (59%), optic nerve pallor (55%), and decreased peripheral vision (35%). Herein we share an atypical case of a patient who presented acutely with periorbital pain and optic nerve head edema, and was ultimately determined to have a low-grade optic nerve meningioma. OBSERVATIONS: A 36-year-old healthy woman presented with acute onset of left periorbital discomfort. She was found to have intact visual acuity, full peripheral vision, and ipsilateral optic nerve edema. MRI imaging revealed a large intraconal mass partially encircling the left optic nerve. Incisional biopsy revealed a diagnosis of meningioma, WHO grade 1. CONCLUSIONS: Low-grade optic nerve sheath meningiomas may uncommonly present with acute pain and optic nerve head swelling, and absence of classic disease features.

Acute post-partum vision loss due to pilocytic astrocytoma.

PURPOSE: We report an unusual case of a thirty-three-year-old woman who presented with acute unilateral vision loss following pregnancy and was ultimately discovered to have a pilocytic astrocytoma of the optic nerve. OBSERVATIONS: A thirty-three-year-old previously healthy female presented one month following Caesarean section with unilateral vision loss. She was found to have significantly decreased visual acuity, an afferent pupil deficit, proptosis, optic nerve edema and choroidal folds. Imaging revealed a large lesion of the optic nerve. Biopsy was performed and pathologic analysis revealed a pilocytic astrocytoma, WHO grade 1. The patient opted for close observation without further management and demonstrated mild improvement in visual function. CONCLUSIONS/IMPORTANCE: Optic pathway gliomas (OPG) most commonly present in the pediatric patient population with painless proptosis, slowly progressive vision loss, and clinical findings of chronic optic neuropathy.( Farazdaghi et al., 2019 Sep) 1 Acute presentations of this disease in adulthood are rare. This case demonstrates a rare case of acute optic nerve glioma presentation during the post-partum period.

Long-term outcomes after endoscopic dacryocystorhinostomy without mucosal flap preservation.

OBJECTIVE: A growing body of evidence demonstrates that endonasal endoscopic dacryocystorhinostomy (eDCR) techniques provide comparable results to conventional external techniques. The purpose of this study was to evaluate long-term outcomes after powered endoscopic DCR without preservation of mucosal flaps for the management of acquired nasolacrimal duct obstruction performed by a single surgical team. METHODS: A retrospective review was performed of patients with epiphora secondary to acquired nasolacrimal duct obstruction who underwent eDCR without mucosal flap preservation from May 2003 to April 2013 at a tertiary referral medical center. Main outcome measures were subjective improvement in epiphora and assessment of anatomic patency based on lacrimal irrigation and endoscopic evaluation. RESULTS: Eighty patients (69 primary and 11 revision) totaling 103 procedures (87 primary, 16 revision) were available for analysis at a mean follow-up of 28.7 (range 6-114) months. At the most recent follow-up, 92 of 103 (89.3%) procedures had complete resolution of epiphora, and 10 of 103 procedures achieved mild intermittent epiphora. Complete resolution of epiphora was noted in 93.1% (81 of 87) of primary procedures and 68.8% (11 of 16) of revision procedures. Objective anatomic patency was confirmed in 98% (101 of 103). A revision procedure was required in 5.8% (6 of 103). CONCLUSION: Outcomes of powered eDCR without the preservation of mucosal flaps compare favorably to previously reported results in the literature. These long-term results suggest that mucosal flap preservation is not required to achieve successful outcomes with eDCR. LEVEL OF EVIDENCE: 4 Laryngoscope, 130:12-17, 2020.

Contemporary management of orbital blowout fractures.

PURPOSE OF REVIEW: Orbital floor blowout fractures may lead to significant morbidity, including debilitating double vision and globe malposition. Thorough evaluation and timely surgical intervention may prevent long-term sequelae. RECENT FINDINGS: New studies have demonstrated certain patients with orbital floor fractures to do well when managed conservatively. In those necessitating operative repair, precise surgical dissection and adequate fracture reduction are essential to restoring orbital anatomy and function. Novel surgical techniques and orbital floor reconstruction materials, described in this review, will further optimize patient outcomes. SUMMARY: A knowledgeable evaluation, thoughtful management strategy and modernized surgical technique can prevent long-term disability in patients with orbital floor blowout fractures.

Ophthalmic Manifestations of Facial Dog Bites in Children.

PURPOSE: To characterize ophthalmic manifestations and periocular injuries of pediatric facial dog bites. METHODS: A retrospective review of all children younger than 18 years who sought medical attention after a dog bite to the face between January 1, 2003 and May 22, 2014 was performed at a large tertiary pediatric hospital. Data on type and location of injury, surgical intervention, and complications were collected. RESULTS: A total of 1,989 children aged 0.19 to 17 years were identified with dog bites. Dog bites to the face occurred in most patients (n = 1, 414 [71%]). Of those children with facial dog bite injuries, 230 (16%) suffered ophthalmic manifestations. The average age was 4.3 years. Eyelid injuries occurred in 227 (99%) of children, 47 (20%) sustained canalicular system injuries, 3 (1.3%) suffered corneal abrasions, and 2 patients sustained facial nerve injury resulting in lagophthalmos. No patients suffered vision loss. Complications occurred in 32 patients (14%), with the most common being epiphora in 9 patients (28%), upper eyelid ptosis in 8 (25%), and prominent scar formation in 4 patients (13%). Thirteen children (5.7%) needed one or more secondary procedure to correct complications. CONCLUSIONS: The authors report the clinical features and management on the largest series of ophthalmic and periocular injuries associated with pediatric facial dog bites. These injuries occur in about 1 in 6 dog bites to the face and primarily involve the ocular adnexa. Despite early and appropriate surgical management, complications and the need for revision surgery are relatively common.

Comparison of Revision Rates of Anterior- and Posterior-Approach Ptosis Surgery: A Retrospective Review of 1519 Cases.

PURPOSE: To compare revision rates for ptosis surgery between posterior-approach and anterior-approach ptosis repair techniques. METHODS: This is the retrospective, consecutive cohort study. All patients undergoing ptosis surgery at a high-volume oculofacial plastic surgery practice over a 4-year period. A retrospective chart review was conducted of all patients undergoing posterior-approach and anterior-approach ptosis surgery for all etiologies of ptosis between 2011 and 2014. Etiology of ptosis, concurrent oculofacial surgeries, revision, and complications were analyzed. The main outcome measure is the ptosis revision rate. RESULTS: A total of 1519 patients were included in this study. The mean age was 63 ± 15.4 years. A total of 1056 (70%) of patients were female, 1451 (95%) had involutional ptosis, and 1129 (74.3%) had concurrent upper blepharoplasty. Five hundred thirteen (33.8%) underwent posterior-approach ptosis repair, and 1006 (66.2%) underwent anterior-approach ptosis repair. The degree of ptosis was greater in the anterior-approach ptosis repair group. The overall revision rate for all patients was 8.7%. Of the posterior group, 6.8% required ptosis revision; of the anterior group, 9.5% required revision surgery. The main reason for ptosis revision surgery was undercorrection of one or both eyelids. Concurrent brow lifting was associated with a decreased, but not statistically significant, rate of revision surgery. Patients who underwent unilateral ptosis surgery had a 5.1% rate of Hering's phenomenon requiring ptosis repair in the contralateral eyelid. Multivariable logistic regression for predictive factors show that, when adjusted for gender and concurrent blepharoplasty, the revision rate in anterior-approach ptosis surgery is higher than posterior-approach ptosis surgery (odds ratio = 2.08; p = 0.002). CONCLUSIONS: The overall revision rate in patients undergoing ptosis repair via posterior-approach or anterior-approach techniques is 8.7%. There is a statistically higher rate of revision with anterior-approach ptosis repair.

Increased Incidence of Rhino-Orbital-Cerebral Mucormycosis After Colorado Flooding.

In September 2013, central Colorado experienced a record amount of rainfall resulting in widespread flooding. Within 1 month of the flooding, 4 patients presented to the authors' institution with rhino-orbital-cerebral mucormycosis. This represents the largest number of cases ever recorded over a 1-month period. The authors hypothesize that the combination of immunocompromised status and environmental exposure resulted in the increased incidence.

Dacryocystitis As the Initial Presentation of Invasive Fungal Sinusitis in Immunocompromised Children.

Sino-orbital fungal infection is a rare, but life-threatening disease seen mainly in immunocompromised patients. While initial clinical impression may vary, dacryocystitis has rarely been described as the initial presenting sign. The authors present 2 pediatric cases of dacryocystitis as the initial sign of invasive fungal sinusitis. To their knowledge, this presenting sign has not been previously reported in the pediatric population. Management strategies and outcomes are discussed.

Axial Globe Position Measurement: A Prospective Multicenter Study by the International Thyroid Eye Disease Society.

PURPOSE: Identify a reproducible measure of axial globe position (AGP) for multicenter studies on patients with thyroid eye disease (TED). METHODS: This is a prospective, international, multicenter, observational study in which 3 types of AGP evaluation were examined: radiologic, clinical, and photographic. In this study, CT was the modality to which all other methods were compared. CT AGP was measured from an orthogonal line between the anterior lateral orbital rims to the cornea. All CT measurements were made at a single institution by 3 individual clinicians. Clinical evaluation was performed with exophthalmometry. Three clinicians from each clinical site assessed AGP with 3 different exophthalmometers and horizontal palpebral width using a ruler. Each physician made 3 separate measurements with each type of exophthalmometer not in succession. All photographic measurements were made at a single institution. AGP was measured from lateral photographs in which a standard marker was placed at the anterior lateral orbital rim. Horizontal and vertical palpebral fissure were measured from frontal photographs. Three trained readers measured 3 separate times not in succession. Exophthalmometry and photography method validity was assessed by agreement with CT (mean differences calculation, intraclass correlation coefficients [ICCs], Bland-Altman figures). Correlation between palpebral fissure and CT AGP was assessed with Pearson correlation. Intraclinician and interclinician reliability was evaluated using ICCs. RESULTS: Sixty-eight patients from 7 centers participated. CT mean AGP was 21.37 mm (15.96-28.90 mm) right and 21.22 mm (15.87-28.70 mm) left (ICC 0.996 and 0.995). Exophthalmometry AGP fell between 18 mm and 25 mm. Intraclinician agreement across exophthalmometers was ideal (ICC 0.948-0.983). Agreement between clinicians was greater than 0.85 for all upright exophthalmometry measurements. Photographic mean AGP was 20.47 mm (10.92-30.88 mm) right and 20.30 mm (8.61-28.72 mm) left. Intrareader and interreader agreement was ideal (ICC 0.991-0.989). All exophthalmometers' mean differences from CT ranged between -0.06 mm (±1.36 mm) and 0.54 mm (±1.61 mm); 95% confidence interval fell within 1 mm. Magnitude of AGP did not affect exophthalmometry validity. Oculus best estimated CT AGP but differences from other exophthalmometers were not clinically meaningful in upright measurements. Photographic AGP (right ICC = 0.575, left ICC = 0.355) and palpebral fissure do not agree with CT. CONCLUSIONS: Upright clinical exophthalmometry accurately estimates CT AGP in TED. AGP measurement was reliably reproduced by the same clinician and between clinicians at multiple institutions using the protocol in this study. These findings allow reliable measurement of AGP that will be of considerable value in future outcome studies.

Ophthalmic manifestations and outcomes after cavernous sinus thrombosis in children.

PURPOSE: To review the causes, treatment, and outcomes of cavernous sinus thrombosis (CST) in children. METHODS: The medical records of children (<18 years of age) diagnosed with thrombophlebitis of an intracranial venous sinus were reviewed to identify cases of CST presenting to Children's Hospital Colorado from January 2000 through January 2013. Cases were evaluated for etiology, symptoms, imaging characteristics, treatment, and outcomes. RESULTS: A total of 110 children with a venous thrombus of an intracranial sinus were included. Of these, 9 had a CST. All cases were confirmed by magnetic resonance imaging. All 9 had sinusitis, 4 had orbital involvement, and 1 resulted from a nasal septal abscess. Eight cases presented with ophthalmoplegia, and 5 presented with decreased vision. Every patient underwent sinus surgery: 4 underwent orbitotomy for abscess drainage, and 1 required bilateral exenteration. Cultures were inconclusive in 2 cases, and 2 cases were culture positive rhino-orbital mucormycosis. There was 1 case of methicillin-resistant Staphylococcus aureus. Of the 9 cases, 4 returned to normal vision and ocular motility; 5 had permanent ophthalmoplegia and vision loss. There were no cases of mortality. CONCLUSIONS: CST is a rare complication of orbital and sinus disease. High clinical suspicion, early neurologic imaging, and a multidisciplinary approach to management are key factors in reducing morbidity and mortality from CST in children.