Oculoplastic surgery

  • 文章类型: Journal Article
    背景:国际指南建议对主要闭合手术切口使用预防性抗菌药物,但是大多数眼整形外科医生报告说使用氯霉素软膏。我们评估了接受眼睑手术的患者术后预防性氯霉素软膏的基线手术部位感染率(SSI)。然后对预防措施的撤回进行前瞻性审核,以确定感染率是否以临床意义的方式发生变化。这篇文章报道了早期的发现。患者和方法:进行了单中心回顾性审核;对连续接受初次切口闭合眼睑手术的患者进行了电子病历审查。所有患者均接受术后预防性氯霉素治疗。那些有组织病理学证据的恶性肿瘤被排除在外。患者人口统计学,手术细节,记录术后SSI和其他并发症的证据.根据国家指南改变了当地政策;预防性氯霉素软膏被扣留,以及预期收集的上述信息。我们的政策排除了皮肤恶性肿瘤,全厚度皮肤移植物,全身免疫抑制患者,和糖尿病,因为潜在的感染风险增加。结果:组间差异无统计学意义,除了外科医生的资历。手术部位感染在接受术后氯霉素治疗的872只眼中有14只(1.6%),133只眼睛中有3只(2.25%)没有使用抗生素,这没有统计学意义。结论:眼睑手术术后SSI发生率较低。在主要闭合的手术眼睑切口中常规使用预防性抗生素不符合国际标准,并且可能导致抗生素耐药性。早期结果表明,如果没有预防性氯霉素,感染率仍然很低;临床医生应考虑将其从合适患者的常规实践中撤出。
    Background: International guidelines advise against prophylactic antimicrobial agents for primarily closed surgical incisions, but most oculoplastic surgeons report using chloramphenicol ointment. We evaluated baseline surgical site infection (SSI) rates in patients undergoing eyelid surgery who received prophylactic chloramphenicol ointment post-operatively. Withdrawal of prophylaxis was then prospectively audited to establish whether infection rates changed in a clinically meaningful way. This article reports the early findings. Patients and Methods: A single-center retrospective audit was undertaken; electronic medical records were reviewed for consecutive patients who underwent eyelid surgery with primary incision closure. All patients received post-operative prophylactic chloramphenicol. Those with histopathologic evidence of malignancy were excluded. Patient demographics, surgical details, evidence of post-operative SSI and other complications were recorded. Local policy was changed in accordance with national guidelines; prophylactic chloramphenicol ointment was withheld, and the above information collected prospectively. Our policy excluded skin malignancies, full thickness skin grafts, patients on systemic immunosuppression, and diabetes mellitus because of potential increased infection risk. Results: There were no statistically significant differences between the groups, except seniority of surgeon. Surgical site infection was identified in 14 of 872 eyes (1.6%) receiving post-operative chloramphenicol, and three of 133 eyes (2.25%) without antibiotic agents, which was not statistically significant. Conclusions: Post-operative SSI rates in eyelid surgery are low. Routine use of prophylactic antibiotic agents in primarily closed surgical eyelid incisions does not adhere to international standards and may contribute to antimicrobial resistance. Early results suggest infection rates remain low without prophylactic chloramphenicol; clinicians should consider withdrawing it from routine practice in suitable patients.
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  • 文章类型: Journal Article
    BACKGROUND: Repair of margin-involving eyelid lacerations is a challenge for beginning ophthalmology residents, yet no commercially-available simulation models exist for learning this skill. The objective of the study was to modify a mannequin-based surgical simulator originally developed for trachomatous trichiasis surgery training to teach margin-involving eyelid laceration repair and to evaluate its success within a residency wet-lab environment.
    METHODS: We modified a previously developed mannequin-based training system for trachomatous trichiasis surgery into a simulator for margin-involving eyelid laceration repair. Six ophthalmology residents from a tertiary care academic institution performed at least one simulated margin-involving eyelid laceration repair using the surgical simulator between September 2019 and March 2020. Each session was video recorded. Two oculoplastic surgeons reviewed the videos in a blinded fashion to assess surgical proficiency using a standardized grading system. Participants were surveyed on their comfort level with eyelid laceration repair pre- and post-completion of simulation. They were also queried on their perceived usefulness of the surgical simulator compared to past methods and experiences.
    RESULTS: Six residents completed 11 simulation surgeries. For three residents who completed more than one session, a slight increase in their skills assessment score and a decrease in operative time over two to three simulation sessions were found. Self-reported comfort level with margin-involving eyelid laceration repairs was significantly higher post-simulation compared to pre-simulation (p = 0.02). Residents ranked the usefulness of our surgical simulator higher than past methods such as fruit peels, surgical skill boards, gloves, and pig feet (p = 0.03) but lower than operating room experience (p = 0.02). Residents perceived the surgical simulator to be as useful as cadaver head and emergency department/consult experience.
    CONCLUSIONS: We developed a surgical simulator for teaching eyelid laceration repair and showed its utility in developing trainees\' surgical skills. Our surgical simulator was rated to be as useful as a cadaver head but is more readily available and cost effective.
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  • 文章类型: Case Reports
    This study aimed to describe the clinical features, surgical management of the eyelid and ocular surface, and outcomes of 16 patients implanted with a Boston type I keratoprosthesis (KPro).
    A retrospective, single-center, consecutive case series of 16 patients with Stevens-Johnson syndrome (1), ocular chemical burns (12), and ocular thermal burns (3) implanted with KPro was studied. All subjects were men aged 27-51 years. Surgical treatment and outcomes for eyelid malposition, symblepharon, and glaucoma were assessed.
    From September 2010 to February 2019, 29 patients were admitted to Zhongshan Ophthalmic Center for KPro implantation, of whom 16 (55%) required eyelid or ocular surface surgeries to maintain hydration and protect the corneal tissue, which is vulnerable to epithelial defects. Forty-one adnexal surgical procedures were performed. The most common indication for surgery was symblepharon, and the most frequent procedures were symblepharon lysis with ocular mucous membrane grafts and amniotic membranes (7) and full-thickness skin grafts to the eyelids (7). Preoperative conjunctival injection and corneal staining were documented in 9 (56%) and 8 (50%) eyes, respectively, and at up to 4 months postoperative follow-up (the last adnexal surgery before KPro) were recorded in 3 (19%, p = 0.03) and 2 (12%, p = 0.02) eyes, respectively. Glaucoma drainage devices were inserted in six patients. One patient with Stevens-Johnson syndrome underwent FP7 Ahmed glaucoma valve (AGV) implantation inferotemporally and developed plate exposure 2 months postoperatively. Five patients underwent FP8 AGV implantation with tube insertion into the vitreous cavity due to the scarred conjunctiva and limited subconjunctival space. In the study period, intraocular pressure (IOP) was in the normal range, and no tube or plate exposure was observed.
    The ocular environment is critical for successful KPro surgery. A multidisciplinary approach for any lid and ocular surface abnormality in ocular burns or Stevens-Johnson syndrome is important to improve the quality of the ocular surface and accommodate KPro and AGV, which is vital for maintaining vision after KPro surgery. FP8 AGV may be feasible for IOP control in adult KPro cases with restricted subconjunctival space.
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  • 文章类型: Journal Article
    With the rapid growth of the stem cell biology field, the prospect of regenerative medicine across multiple tissue types comes closer to reality. Several groundbreaking steps paved the way for applying stem cell biology to the several subfields within ophthalmology and oculoplastic surgery. These steps include the use of stem cell transplants as well as studies of various ophthalmologic pathologies at the molecular level. The necessity of stem cell transplant is readily apparent, having already been used for several studies such as artificial lacrimal gland design and eyelid reconstruction. Investigating the stem cell biology behind oncological diseases of the eye has also developed recently, such as with the identification of specific markers to label cancer stem cells in orbital adenoid cystic carcinoma. The advent of induced pluripotent stem cells led to a burst of productivity in the field of regenerative medicine, making it possible to take a patient\'s own cells, reprogram them, and use them to either study patient-specific pathology in vitro or use them for eventual patient specific therapeutics. Patient-specific adipose-derived stem cells (ASCs) have been used for a variety of treatments, such as wound healing and burn therapies. As the fields of stem cell biology and regenerative medicine continue to progress, its use will become a mainstay of patient-specific cell therapies in the future.
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  • 文章类型: Journal Article
    OBJECTIVE: To describe a series of cases of basal cell carcinomas of the eyelid.
    METHODS: A descriptive and retrospective study was conducted by reviewing the medical outcome, histopathological history, and photographic images of 200 patients with basal cell eyelid carcinomas. All were treated in the Herzog Carl Theodor Eye Hospital in Munich, Germany, between 2000 and 2013.
    RESULTS: In the present study, it was found that females are more affected than males. The mean age of presentation of the tumor occurred at the age of 70 years. In 50% of the cases the tumor was found on the lower lid, especially medially from the center of the lid. The lid margin was involved in 47% of all tumors. The mean diameter was 9.2mm. The recurrence rate after surgery with histologically clear resection margins was 5%. There was a significant relationship between tumor diameter and age. As tumors where located farther away from medial and closer to the lid margin, they became larger.
    CONCLUSIONS: There is a predominance of women affected by this tumor. This may be related to the fact that the sample was taken from those attending an oculoplastic surgery clinic, where there are generally more women than men attending. The formation of basal cell carcinomas increases with age. The infrequent involvement of the upper lid could be explained by the protection of the the eyebrow. The frequent involvement of the lower lid may be due to the light reflection (total reflection) by the cornea on the lower lid margin. Also chemical and physical effects of the tears may be more harmful on the lower lid. Patients tend to ask for medical help when they are females, younger, when the tumor is closer to the medial canthus or when the tumor is away from the lid margin.
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  • 文章类型: Clinical Trial, Phase III
    BACKGROUND: Hypotrichosis of the eyelashes may negatively influence an individual\'s self-perception and appearance. Assessing the impact of treatment from a patient\'s perspective may be particularly relevant in trials of aesthetic agents. Once-daily dermal (topically applied) administration of bimatoprost ophthalmic solution 0.03% has been associated with increased eyelash prominence (ie, length, thickness, darkness).
    OBJECTIVE: The authors assess patient-reported outcomes (PRO) after treatment with bimatoprost for hypotrichosis of the eyelashes.
    METHODS: In this multicenter, double-masked, randomized, vehicle-controlled, parallel clinical trial, 4 PRO questionnaires were distributed to 278 patients (bimatoprost [n = 137] and vehicle [n = 141]). The primary PRO questionnaire was the 23-item Eyelash Satisfaction Questionnaire (ESQ), which measured satisfaction in 3 domains: length, fullness, and overall satisfaction (LFOS); confidence, attractiveness, and professionalism (CAP); and impact on daily routine (DR).
    RESULTS: By week 16, the bimatoprost group reported significantly greater improvements from baseline on all ESQ items (P ≤ .0433). These improvements were sustained through the 4-week posttreatment study visit. Patient satisfaction was significantly greater in the bimatoprost group than in the vehicle group for all 3 domains: LFOS (weeks 8-20; P ≤ .0052), CAP (weeks 12-20; P < .0001), and DR (weeks 16 and 20; P ≤ .01).
    CONCLUSIONS: The bimatoprost group reported significantly greater levels of positive patient outcomes and satisfaction than the vehicle group across all 23 questions and all 3 domains of the primary PRO questionnaire. These results support the effectiveness, as measured by objective measures and PRO, of once-daily bimatoprost ophthalmic solution 0.03% at producing more prominent eyelashes in adults.
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