Publications by authors named "James A Katowitz"

Background: Punctal agenesis (PA) is a rare congenital anomaly that can occur in isolation or as part of an underlying syndrome. The benefit of genetic assessment in individuals with PA and clinical features that should prompt molecular workup has not been systematically studied. The aim of this study was to identify ocular and extraocular features associated with PA and determine its association with an underlying syndrome.

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Article Synopsis
  • The study aimed to determine if children with craniosynostosis have higher rates of nasolacrimal duct obstruction (NLDO) and to identify potential risk factors.
  • A retrospective review was conducted on 767 craniosynostosis patients over 11 years, finding that NLDO occurred in 6.2% of participants, with higher rates in those with genetic or syndromic associations.
  • The findings suggest that NLDO is more prevalent in this population compared to the general public, particularly among females and patients with certain genetic variants, highlighting the need for ophthalmic evaluations in craniosynostosis patients.
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Background: Punctal atresia or agenesis (PA) is a rare congenital anomaly characterized by the absence or closure of the tear duct puncta, potentially linked to systemic genetic anomalies. The necessity of a genetic workup based solely on the presence of PA remains uncertain. This study investigates a cohort of PA patients, examining the prevalence and types of associated syndromes.

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Purpose: Cryptophthalmos is a rare congenital condition caused by anomalous eyelid development where the eyelid folds do not develop or fail to separate. Cryptophthalmos can be unilateral or bilateral and can occur in isolation or as part of an underlying syndrome. We aim to identify genetic syndromes associated with cryptophthalmos to facilitate genetic diagnosis.

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Objective: To compare the outcome of silicone sling frontalis suspension (FS) surgery in children with simple congenital ptosis and children with complex ptosis.

Design: A retrospective cohort study.

Participants: All pediatric patients who underwent silicone sling FS surgery between 2009 and 2020 at a single centre.

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Purpose: Congenital Nasolacrimal duct obstruction (CNLDO) is a relatively common problem in children with Down syndrome (DS). Probing and irrigation (PI) with monocanalicular stent intubation may be less successful than in non-DS patients, thus raising some concerns regarding the preferred treatment in this population. We aimed to analyze the surgical outcome of PI along with monocanalicular stent intubation in children with DS compared with non-DS patients.

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Purpose: To describe the clinical characteristics, surgical technique, and outcomes in patients with kissing nevi who underwent surgical management in two tertiary referral centers.

Methods: Medical chart review was conducted for all patients who underwent surgical repair in Moorfields Eye Hospital and The Children's Hospital of Philadelphia. Demographics, medical history, lesion characteristics, surgical intervention, and outcomes were collected.

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Background: Frontalis suspension (FS) is the treatment of choice in congenital ptosis with poor levator function. We report the surgical outcome of FS using a double triangle configuration of silicone slings in children.

Methods: A retrospective cohort study of all paediatric patients with simple myogenic congenital ptosis repaired with FS over a 12-year period (2009-2020).

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Background: Congenital nasolacrimal duct obstruction (CNLDO) is common in Down Syndrome (DS), and more difficult to treat. Our purpose was to describe the management of CNLDO in paediatric patients with DS.

Methods: Retrospective cohort study.

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Purpose: To evaluate the effect of optic nerve sheath fenestration (ONSF) on the recovery of visual function in pediatric patients with optic disc swelling owing to increased intracranial pressure.

Design: Retrospective case series.

Methods: Medical chart review of all pediatric patients who underwent ONSF between 2009 and 2020 at the Children's Hospital of Philadelphia.

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Purpose: The ectodermal dysplasias (EDs) constitute a group of disorders characterized by abnormalities in two or more ectodermal derivatives, including skin, hair, teeth, and sweat glands. The purpose of the current study was to evaluate ocular manifestations in pediatric patients with ED.

Methods: Retrospective case series including consecutive ED subjects who were treated in the ophthalmology department at the Children's Hospital of Philadelphia over a 12-year period (2009-2020).

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Article Synopsis
  • - The study aimed to compare the frequency of isolated blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) with systemic genetic disorders in patients diagnosed with blepharophimosis at a children's hospital over 12 years.
  • - Out of 135 patients reviewed, 93% were diagnosed with isolated BPES, primarily linked to mutations in the FOXL2 gene, while 7% had other syndromic disorders, including Dubowitz and Ohdo syndromes.
  • - The findings suggest that while isolated BPES is common, ophthalmologists should perform thorough genetic evaluations to rule out any associated syndromic conditions before confirming a BPES diagnosis.
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Purpose: To analyze the clinical presentation, course, and management in a large cohort of pediatric acute dacryocystitis subjects and to examine whether hospitalization and urgent surgical intervention are indeed mandatory.

Methods: A retrospective analysis of all pediatric subjects diagnosed with dacryocystitis at the Children's Hospital of Philadelphia over a 12-year period (2009-2020).

Results: One-hundred sixty-nine pediatric acute dacryocystitis patients were included in this study.

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: Koolen-de Vries syndrome (KdVS) (OMIM #610443) or 17q21.31 microdeletion syndrome, is a rare genetic disorder characterized by developmental and speech delay, intellectual disability, epilepsy, hypotonia, characteristic facial features, and congenital malformations of multiple organs.The purpose of the current study was to describe ocular manifestations and surgical interventions in six KdVS pediatric patients, and to review the ocular associations of this condition.

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Purpose: To study the CT appearance of the nasolacrimal canal (NLC) in cases of congenital nasolacrimal duct obstruction (CNLDO) where there is a tactile sensation of a hard contact (HC) stop in the duct preventing stent intubation.

Methods: The authors retrospectively reviewed all consecutive cases of chronic CNLDO observed between 2003 and 2018 in which an apparent HC obstruction prevented nasolacrimal intubation. CT scans were reviewed to determine the cause of probing failure: distal stenosis, loss of parallelism of the NLC walls, abnormal angulations or an adjacent obstacle blocking tear outflow.

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Background: The Masterka stent has been recommended solely for treatment of simple distal membranous nasolacrimal duct obstruction (NLDO). The purpose of this study was to evaluate the Masterka stent as a primary treatment in complex forms of NLDO, including bony ductal stenosis and proximal and serial membranous obstruction.

Methods: The medical records of patients who underwent treatment for congenital nasolacrimal duct obstruction with the monocanalicular Masterka stent were reviewed retrospectively.

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Purpose: The authors sought to compare the clinical outcomes of simultaneous versus sequential ptosis and strabismus surgery in children.

Methods: Retrospective, single-center cohort study of children requiring both ptosis and strabismus surgery on the same eye. Simultaneous surgeries were performed during a single anesthetic event; sequential surgeries were performed at least 7 weeks apart.

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Topic: Children and adults with neurofibromatosis type 1 (NF1), a common autosomal dominant condition, manifest a variety of ophthalmologic conditions. Plexiform neurofibromas (PNs) involving the eyelid, orbit, periorbital, and facial structures (orbital-periorbital plexiform neurofibroma [OPPN]) can result in significant visual loss in children. Equally important, OPPNs can cause significant alteration in physical appearance secondary to proptosis, ptosis, and facial disfigurement, leading to social embarrassment and decreased self-esteem.

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Two children without neurofibromatosis type 1 presented with unilateral decreased vision and MRI revealing optic nerve tumors. In the first case, chemotherapy was initiated empirically for presumed optic pathway glioma, but the lesion increased in size with associated clinical worsening, raising concern for a possible alternate diagnosis. Biopsy of the involved optic nerve resulted in worsening of vision due to a branch retinal artery occlusion and showed a grade I pilocytic astrocytoma.

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A 4-month-old male infant with proptosis and episcleral injection initially thought to have orbital inflammation was found to have an indirect carotid-cavernous sinus fistula. He was treated conservatively without worsening of symptoms. The authors report the first case of indirect carotid-cavernous sinus fistula in an infant originating from the internal carotid artery.

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Orbital and periorbital extension of congenital dacryocystoceles is rarely observed in neonatal infants. The authors describe 4 cases of congenital dacryocystocele that presented with extension to the orbital and periorbital regions. The first 3 newborns underwent marsupialization of the orbital and periorbital dacryocystoceles with aspiration of the purulent material followed by nasolacrimal duct probing after radiographic evidence of diffuse orbital or periorbital expansion.

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Article Synopsis
  • A 3-year-old girl presented with conjunctivitis, hyperglobus in her left eye, and a mass in the orbit; urgent MRI revealed an enhancing mass.
  • An incisional biopsy initially suggested embryonal rhabdomyosarcoma, but genetic testing confirmed it as alveolar rhabdomyosarcoma due to the presence of the PAX3/PAX7-FKHR gene.
  • Following intensive chemotherapy and proton-beam radiotherapy, the tumor significantly shrank, and the patient remained in remission after over 3 years.
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