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  1. Article ; Online: Structural and refractive outcomes of intravitreal ranibizumab followed by laser photocoagulation for type 1 retinopathy of prematurity.

    Hoppe, Charis / Holt, Derick G / Arnold, Benjamin F / Thinda, Sumeer / Padmanabhan, Sriranjani P / Oatts, Julius T

    Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus

    2022  Volume 26, Issue 6, Page(s) 305.e1–305.e6

    Abstract: Purpose: To evaluate refractive and structural outcomes for patients treated for retinopathy of prematurity (ROP) with the anti-vascular endothelial growth factor (anti-VEGF) agent ranibizumab and "delayed laser," defined as any laser photocoagulation ... ...

    Abstract Purpose: To evaluate refractive and structural outcomes for patients treated for retinopathy of prematurity (ROP) with the anti-vascular endothelial growth factor (anti-VEGF) agent ranibizumab and "delayed laser," defined as any laser photocoagulation treatment administered at least 2 weeks and <1 year after the initial anti-VEGF injection.
    Methods: The medical records of infants with type 1 ROP treated between 2015 and 2020 with intravitreal 0.25 mg ranibizumab followed by delayed laser photocoagulation, with a minimum of 6 months' follow-up, were reviewed retrospectively. Refractive and structural outcomes were extracted from the record.
    Results: A total of 68 eyes of 34 neonates were included, with median gestational age of 24 weeks and birthweight of 657 g. Patients were aged 0.9 to 4.4 years at last follow-up; mean follow-up interval was 2.7 ± 1.02 years. There was no progression to stage 4 or 5 following treatment during the study period. At 2 years' follow-up (mean age, 2.41 ± 0.23 years), median spherical equivalent (SE) was -0.13 D (IQR, 4.20 D). At most recent examination (mean age, 2.70 ± 1.02 years), the most common ocular findings included strabismus (32%), optic atrophy (24%), amblyopia (21%), high myopia (7%), and nystagmus (4%).
    Conclusions: In our small cohort, neonates with type 1 ROP treated with intravitreal ranibizumab and delayed laser demonstrated good structural outcomes, with no progression to retinal detachment. We found lower rates of high myopia compared with previous reports of laser photocoagulation monotherapy.
    MeSH term(s) Infant ; Infant, Newborn ; Humans ; Child, Preschool ; Ranibizumab/therapeutic use ; Retinopathy of Prematurity/drug therapy ; Retinopathy of Prematurity/surgery ; Bevacizumab/therapeutic use ; Retrospective Studies ; Angiogenesis Inhibitors/therapeutic use ; Intravitreal Injections ; Laser Coagulation ; Vascular Endothelial Growth Factor A ; Gestational Age ; Myopia
    Chemical Substances Ranibizumab (ZL1R02VT79) ; Bevacizumab (2S9ZZM9Q9V) ; Angiogenesis Inhibitors ; Vascular Endothelial Growth Factor A
    Language English
    Publishing date 2022-10-17
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1412476-2
    ISSN 1528-3933 ; 1091-8531
    ISSN (online) 1528-3933
    ISSN 1091-8531
    DOI 10.1016/j.jaapos.2022.08.524
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comparison of Techniques for Correction of Chin-down Vertical Abnormal Head Position Associated with Infantile Nystagmus Syndrome.

    Law, James J / Zheng, Yuxi / Holt, Derick G / Morrison, David G / Donahue, Sean P

    American journal of ophthalmology

    2020  Volume 213, Page(s) 57–61

    Abstract: Purpose: We evaluated the relative effectiveness of combined recession-resection of vertical rectus muscles versus superior rectus recession with inferior oblique weakening for patients who underwent surgical correction of chin-down abnormal head ... ...

    Abstract Purpose: We evaluated the relative effectiveness of combined recession-resection of vertical rectus muscles versus superior rectus recession with inferior oblique weakening for patients who underwent surgical correction of chin-down abnormal head position (AHP) associated with infantile nystagmus syndrome (INS).
    Design: Retrospective interventional case series.
    Methods: This is a review of 22 patients who underwent surgical correction of chin-down vertical AHP associated with INS at an academic institution. The primary outcome was collapse of AHP. Unfavorable outcomes included repeat surgery and induced strabismus, in addition to failure of collapse of AHP.
    Results: Twenty-two patients had chin-down AHP. Recession-resection (bilateral superior rectus recession 6-9 mm; bilateral inferior rectus resection 5-9 mm) was performed in 11 cases; weakening of both elevators (bilateral superior rectus recession 5-8 mm, bilateral inferior oblique recession or myectomy) occurred in 11 cases. Unfavorable outcome rates were 64% (7/11) compared with 18% (2/11), respectively (P = .03). Reoperation was performed for 6 of 22 patients. Five patients were from the recession-resection group, namely 3 for induced V-pattern esotropia, 1 for alternating esotropia, and 1 to correct recurrent AHP. The last of the 6 who required reoperation was in the elevator weakening group, and required correction of a recurrent AHP (P = .06).
    Conclusions: While recession-resection of the vertical recti and weakening of both elevators each produce acceptable collapse of chin-down AHP, the former frequently induces a V-pattern esotropia requiring reoperation.
    MeSH term(s) Adolescent ; Child ; Child, Preschool ; Chin/surgery ; Female ; Follow-Up Studies ; Head/physiology ; Humans ; Infant ; Male ; Nystagmus, Congenital/physiopathology ; Nystagmus, Congenital/surgery ; Oculomotor Muscles/surgery ; Ophthalmologic Surgical Procedures ; Posture/physiology ; Reoperation ; Retrospective Studies ; Vision, Binocular/physiology ; Visual Acuity/physiology
    Language English
    Publishing date 2020-01-15
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80030-2
    ISSN 1879-1891 ; 0002-9394
    ISSN (online) 1879-1891
    ISSN 0002-9394
    DOI 10.1016/j.ajo.2020.01.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Management of Strabismus Associated With Infantile Nystagmus Syndrome: A Novel Classification to Assist in Surgical Planning.

    Zheng, Yuxi / Holt, Derick G / Law, James J / Morrison, David G / Donahue, Sean P

    American journal of ophthalmology

    2019  Volume 208, Page(s) 342–346

    Abstract: Purpose: There is no consensus on the surgical management of head position associated with infantile nystagmus syndrome (INS) when strabismus coexists, and few outcome data have been published. We propose classifying strabismus into concordant or ... ...

    Abstract Purpose: There is no consensus on the surgical management of head position associated with infantile nystagmus syndrome (INS) when strabismus coexists, and few outcome data have been published. We propose classifying strabismus into concordant or discordant based on the relationship between head positioning and strabismus and then modifying surgery accordingly. Our objective is to describe this system and to review surgical outcomes.
    Design: Retrospective observational case series.
    Methods: Twenty-eight patients with INS and coexisting horizontal strabismus underwent surgery for horizontal head positioning and had ≥2 months of follow-up from 1995-2018 at the Vanderbilt Eye Institute. Outcome variables included head positioning (minimal, ≤10°; mild, 11-30°; moderate 31-44°; and severe ≥45°), strabismus (range 0-70 prism diopters [PDs]; minimal ≤10 PD), and reoperation rates. Nonparametric Wilcoxon signed rank, Fisher exact, and Mann-Whitney U tests were used for statistical analysis.
    Results: Twenty-one cases were concordant and 7 were discordant; the mean follow-up was 4.1 years. Ninety-six percent of patients had moderate to severe head positioning at baseline. Correction rates (to minimal) were 100% at 2-5 months postoperatively and 86% at last follow-up (P < .0001 at both time points compared with preoperatively). The magnitude of strabismus decreased compared with preoperative strabismus (30.8 ± 10.8 PDs; n = 28), strabismus at 2-5 months (9.1 ± 11.9 PDs; P = .0001; n = 26), and last follow-up (12.0 ± 14.1 PDs; P = .0003; n = 28). The overall reoperation rate was 32%.
    Conclusions: Our classification system in patients with INS allows a systematic way to surgically improve head positioning and strabismus in cases of moderate to severe baseline head positioning.
    MeSH term(s) Child ; Female ; Follow-Up Studies ; Head/physiology ; Humans ; Male ; Nystagmus, Congenital/physiopathology ; Nystagmus, Congenital/surgery ; Oculomotor Muscles/physiopathology ; Oculomotor Muscles/surgery ; Ophthalmologic Surgical Procedures/methods ; Planning Techniques ; Posture/physiology ; Prospective Studies ; Reoperation ; Retrospective Studies ; Strabismus/physiopathology ; Strabismus/surgery ; Tenotomy ; Treatment Outcome ; Visual Acuity/physiology
    Language English
    Publishing date 2019-08-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80030-2
    ISSN 1879-1891 ; 0002-9394
    ISSN (online) 1879-1891
    ISSN 0002-9394
    DOI 10.1016/j.ajo.2019.08.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Long-term Outcomes Following Surgery for Infantile Nystagmus Syndrome With Abnormal Head Positioning.

    Zheng, Yuxi / Law, James J / Holt, Derick G / Morrison, David G / Donahue, Sean P

    American journal of ophthalmology

    2019  Volume 210, Page(s) 3–7

    Abstract: Purpose: To evaluate long-term outcomes of surgical treatment for abnormal head positioning (AHP) associated with infantile nystagmus syndrome (INS).: Design: Retrospective observational case series.: Methods: Review of 150 patients who underwent ... ...

    Abstract Purpose: To evaluate long-term outcomes of surgical treatment for abnormal head positioning (AHP) associated with infantile nystagmus syndrome (INS).
    Design: Retrospective observational case series.
    Methods: Review of 150 patients who underwent surgery for AHP associated with nystagmus. Outcomes included head positioning, duction limitations, and strabismus, and were evaluated several times postoperatively. Successful collapse of AHP was defined as being ≤10°.
    Results: Thirty-one patients had surgery for AHP in the pitch (chin up/down) position, whereas 119 had surgery for a horizontal AHP. In addition, 54 underwent 50%-60% augmentation, 19 underwent 40% augmentation, 5 underwent less than 40% augmentation. Thirty-eight had surgical dose modified to correct strabismus, and 3 underwent surgery different from standard Kestenbaum procedures. Collapse of AHP: At the 1-3-week follow-up (n = 131), 125 patients (95%) had collapse of AHP. The percentage trended down at the 2-5-month (91%, n = 106) and 2-year follow-ups (83%, n = 57). However, at 5 and 10 years, it was 93% (n = 42) and 93% (n = 14), respectively, due to reoperation in a small minority. Over- and undercorrection: At 1-3 weeks, 5% of patients were overcorrected whereas 0% were undercorrected. Over- and undercorrection rates peaked at 2 years postoperatively. Ten years out, there were no overcorrections and 7% undercorrections. Four percent of patients required reoperation for overcorrection (mean 2.7 years) and 5% did for undercorrection (mean 3.9 years).
    Conclusion: Surgery for the head positioning associated with INS produces excellent outcomes throughout 10 years postoperatively. Overcorrection presents early and resolves either over time or with additional surgery. Undercorrection develops later and can persist despite reoperation.
    MeSH term(s) Adolescent ; Adult ; Child ; Female ; Head/physiology ; Humans ; Infant ; Kaplan-Meier Estimate ; Male ; Nystagmus, Pathologic/physiopathology ; Nystagmus, Pathologic/surgery ; Oculomotor Muscles/surgery ; Ophthalmologic Surgical Procedures/methods ; Posture/physiology ; Retrospective Studies ; Strabismus/surgery
    Language English
    Publishing date 2019-11-12
    Publishing country United States
    Document type Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 80030-2
    ISSN 1879-1891 ; 0002-9394
    ISSN (online) 1879-1891
    ISSN 0002-9394
    DOI 10.1016/j.ajo.2019.11.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Biomechanics of superior oblique Z-tenotomy.

    Holt, Derick G / Morrison, David G / Donahue, Sean P

    Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus

    2014  Volume 18, Issue 4, Page(s) 408

    MeSH term(s) Animals ; Oculomotor Muscles/physiology ; Stress, Mechanical ; Tendons/physiology ; Tenotomy/methods ; Tensile Strength/physiology
    Language English
    Publishing date 2014-08
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 1412476-2
    ISSN 1528-3933 ; 1091-8531
    ISSN (online) 1528-3933
    ISSN 1091-8531
    DOI 10.1016/j.jaapos.2014.03.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Surgical management of traumatic LASIK flap dislocation with macrostriae and epithelial ingrowth 14 years postoperatively.

    Holt, Derick G / Sikder, Shameema / Mifflin, Mark D

    Journal of cataract and refractive surgery

    2012  Volume 38, Issue 2, Page(s) 357–361

    Abstract: Fourteen years after uneventful laser in situ keratomileusis (LASIK), a 59-year-old woman presented after suffering blunt trauma to her left eye 5 weeks earlier. The injury resulted in traumatic flap dislocation, epithelial ingrowth, and significant ... ...

    Abstract Fourteen years after uneventful laser in situ keratomileusis (LASIK), a 59-year-old woman presented after suffering blunt trauma to her left eye 5 weeks earlier. The injury resulted in traumatic flap dislocation, epithelial ingrowth, and significant macrostriae. Following epithelial removal, the flap was hydrated with sterile water, facilitating reduction of the macrostriae and reapproximation without the need for suture placement. The postoperative course was uneventful, and at 1 month, the epithelial ingrowth and macrostriae had resolved and the uncorrected distance visual acuity was 20/30. This case represents the longest documented interval from LASIK surgery to traumatic flap dislocation. We describe our surgical approach to the management of this type of injury and present a video illustrating the technique.
    MeSH term(s) Corneal Injuries ; Corneal Topography ; Epithelium, Corneal/pathology ; Eye Injuries/etiology ; Eye Injuries/surgery ; Female ; Humans ; Keratomileusis, Laser In Situ ; Middle Aged ; Postoperative Complications ; Surgical Flaps ; Surgical Wound Dehiscence/etiology ; Surgical Wound Dehiscence/surgery ; Time Factors ; Visual Acuity/physiology ; Wounds, Nonpenetrating/etiology ; Wounds, Nonpenetrating/surgery
    Language English
    Publishing date 2012-02
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632744-8
    ISSN 1873-4502 ; 0886-3350
    ISSN (online) 1873-4502
    ISSN 0886-3350
    DOI 10.1016/j.jcrs.2011.10.024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Anterior chamber intraocular lens, sutured posterior chamber intraocular lens, or glued intraocular lens: where do we stand?

    Holt, Derick G / Young, Jason / Stagg, Brian / Ambati, Balamurali K

    Current opinion in ophthalmology

    2011  Volume 23, Issue 1, Page(s) 62–67

    Abstract: Purpose of review: To review the recent literature addressing the surgical approaches to intraocular lens (IOL) fixation in the setting of inadequate capsular support.: Recent findings: Lack of capsular support is a commonly encountered problem ... ...

    Abstract Purpose of review: To review the recent literature addressing the surgical approaches to intraocular lens (IOL) fixation in the setting of inadequate capsular support.
    Recent findings: Lack of capsular support is a commonly encountered problem facing the anterior segment surgeon. Recent reports suggest that visual outcomes are generally good with modern IOLs and surgical approaches. More recently described techniques include sutureless scleral fixation and intraocular endoscopy-guided suture placement.
    Summary: Many clinical circumstances require extracapsular IOL fixation and multiple options exist in the setting of inadequate capsular support. Ultimately, there are many factors that must be considered in selecting an appropriate surgical approach. These include ocular history as well as the skill, experience, and comfort level of the individual surgeon. The myriad of options that now exist for IOL fixation increases the likelihood that patients with a wide variety of pathologic states will attain their best possible visual outcome.
    MeSH term(s) Anterior Chamber/surgery ; Humans ; Lens Diseases/therapy ; Lens Implantation, Intraocular/adverse effects ; Lens Implantation, Intraocular/classification ; Lens Implantation, Intraocular/methods ; Lenses, Intraocular ; Posterior Eye Segment/surgery ; Treatment Outcome
    Language English
    Publishing date 2011-11-13
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1049383-9
    ISSN 1531-7021 ; 1040-8738
    ISSN (online) 1531-7021
    ISSN 1040-8738
    DOI 10.1097/ICU.0b013e32834cd5e5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Genome-wide dynamics of SAPHIRE, an essential complex for gene activation and chromatin boundaries.

    Gordon, Matthew / Holt, Derick G / Panigrahi, Anil / Wilhelm, Brian T / Erdjument-Bromage, Hediye / Tempst, Paul / Bähler, Jürg / Cairns, Bradley R

    Molecular and cellular biology

    2007  Volume 27, Issue 11, Page(s) 4058–4069

    Abstract: In this study, we characterize a four-protein nucleosome-binding complex from Schizosaccharomyces pombe, termed SAPHIRE, that includes two orthologs of human Lsd1, a histone demethylase. The SAPHIRE complex is essential for cell viability, whereas ... ...

    Abstract In this study, we characterize a four-protein nucleosome-binding complex from Schizosaccharomyces pombe, termed SAPHIRE, that includes two orthologs of human Lsd1, a histone demethylase. The SAPHIRE complex is essential for cell viability, whereas saphire mutants lacking key conserved catalytic residues are viable but thermosensitive, suggesting that SAPHIRE has both an important enzymatic function and an essential nonenzymatic function. SAPHIRE is present in (or adjacent to) particular heterochromatic loci and also in the transcription start site regions of many highly active polymerase II genes. However, ribosomal protein genes are notably SAPHIRE deficient. SAPHIRE promotes activation, as target genes are selectively attenuated in saphire mutants. Interestingly, saphire mutants display increased histone H3 lysine 4 dimethylation, a modification typically associated with euchromatin. SAPHIRE localization is dynamic, as activated genes rapidly acquire SAPHIRE. Furthermore, saphire mutants dramatically shift a heterochromatin-euchromatin boundary in Chr1, suggesting a novel role in boundary regulation.
    MeSH term(s) Amino Acid Sequence ; Animals ; Cell Survival ; Chromatin/chemistry ; Chromatin/metabolism ; Gene Expression Regulation ; Genome, Fungal ; Heat-Shock Response ; Histone Demethylases ; Histones/metabolism ; Humans ; Molecular Sequence Data ; Multiprotein Complexes ; Nucleosomes/metabolism ; Oxidoreductases, N-Demethylating/genetics ; Oxidoreductases, N-Demethylating/metabolism ; Protein Subunits/genetics ; Protein Subunits/metabolism ; Schizosaccharomyces/genetics ; Schizosaccharomyces/metabolism ; Schizosaccharomyces pombe Proteins/genetics ; Schizosaccharomyces pombe Proteins/isolation & purification ; Schizosaccharomyces pombe Proteins/metabolism ; Sequence Alignment ; Telomere/metabolism ; Transcriptional Activation
    Chemical Substances Chromatin ; Histones ; Multiprotein Complexes ; Nucleosomes ; Protein Subunits ; Schizosaccharomyces pombe Proteins ; Histone Demethylases (EC 1.14.11.-) ; KDM1A protein, human (EC 1.5.-) ; Oxidoreductases, N-Demethylating (EC 1.5.-)
    Language English
    Publishing date 2007-03-19
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 779397-2
    ISSN 1098-5549 ; 0270-7306
    ISSN (online) 1098-5549
    ISSN 0270-7306
    DOI 10.1128/MCB.02044-06
    Database MEDical Literature Analysis and Retrieval System OnLINE

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