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Defining Epidermal Stem Cell Fate Infidelity and Immunogenicity in Hidradenitis Suppurativa at the Single-Cell Resolution [PrePrint]

Marohn, Meaghan; Lin, Meng-ju; Yu, Wei-wen; Mendoza, Ciara Mae; Remark, Juliana; Khodadadi-Jamayran, Alireza; Chiu, Ernest S; Lu, Catherine Pei-ju
ORIGINAL:0014654
ISSN: 2692-8205
CID: 4474812

Hyperbaric oxygen therapy in ophthalmic practice: an expert opinion

Lin, Lawrence J.; Chen, Tiffany X.; Wald, Kenneth J.; Tooley, Andrea A.; Lisman, Richard D.; Chiu, Ernest S.
Introduction: There has been a growing interest in hyperbaric oxygen therapy (HBOT) in recent years across multiple disciplines. In the field of ophthalmology, the implications of increased HBOT use may include expanded applications in treating ocular vascular pathologies as well as a greater incidence of HBOT-induced visual complications. Areas covered: The authors review recent studies on HBOT usage in the treatment of ocular conditions. In addition to providing updates on the ophthalmic indications of HBOT, adverse visual effects of HBOT are also investigated. Expert opinion: Further evidence substantiating HBOT as an effective treatment modality for ocular vascular pathologies, such as central retinal artery occlusion and diabetic retinopathy, have been published in recent years. With the identification of more prognostic factors, increased success in HBOT has been reported. However, studies also show that adverse ocular effects associated with hyperbaric oxygen exposure include myopia and cataracts. It is important to recognize the risks of iatrogenic changes in visual acuity when considering patients for HBOT.
SCOPUS:85082428879
ISSN: 1746-9899
CID: 4394472

Management of stage 0 medication-related osteonecrosis of the jaw with hyperbaric oxygen therapy: a case report and review of the literature

Lin, Lawrence J; Alfonso, Alison R; Ross, Frank L; Chiu, Ernest S; Fleisher, Kenneth E
The definition of medication-related osteonecrosis of the jaw (MRONJ) includes a stage 0 presentation where exposed bone, the hallmark of this condition, is absent. Numerous management strategies have been recommended for MRONJ including hyperbaric oxygen (HBO2) therapy. This report describes a 64-year-old woman with stage 0 MRONJ of the bilateral mandible, refractory to clindamycin and local debridement, who was subsequently managed successfully with amoxicillin/clavulanate and HBO2 therapy. The authors also explore the current literature on the pathophysiology of MRONJ and the potential role of hyperbaric oxygen in its treatment.
PMID: 32574441
ISSN: 1066-2936
CID: 4511882

A Descriptive Revenue Analysis of a Wound-Center IR Collaboration to Treat Lower Extremity Venous Ulcers

Ruohoniemi, David M; Ross, Frank L; Chiu, Ernest S; Taslakian, Bedros; Horn, Jeremy C; Aaltonen, Eric A; Kulkarni, Kopal; Browning, Alexa; Patel, Amish; Sista, Akhilesh K
PURPOSE/OBJECTIVE:To describe the revenue from a collaboration between a dedicated wound care center and an interventional radiology (IR) practice for venous leg ulcer (VLU) management at a tertiary care center. MATERIALS AND METHODS/METHODS:This retrospective study included 36 patients with VLU referred from a wound care center to an IR division during the 10-month active study period (April 2017 to January 2018) with a 6-month surveillance period (January 2018 to June 2018). A total of 15 patients underwent endovascular therapy (intervention group), whereas 21 patients did not (nonintervention group). Work relative value units (wRVUs) and dollar revenue were calculated using the Centers for Medicare and Medicaid Services Physician Fee Schedule. RESULTS:Three sources of revenue were identified: evaluation and management (E&M), diagnostic imaging, and procedures. The pathway generated 518.15 wRVUs, translating to $37,522. Procedures contributed the most revenue (342.27 wRVUs, $18,042), followed by E&M (124.23 wRVUs, $8,881), and diagnostic imaging (51.65 wRVUs, $10,599). Intervention patients accounted for 86.7% of wRVUs (449.48) and 80.0% of the revenue ($30,010). An average of 33 minutes (38.3 hours total) and 2.06 hours (36.8 hours total) were spent on E&M visits and procedures, respectively. CONCLUSIONS:In this collaboration between the wound center and IR undertaken to treat VLU, IR and E&M visits generated revenue and enabled procedural and downstream imaging revenue.
PMID: 31623925
ISSN: 1535-7732
CID: 4140652

Evidence for Healing Diabetic Foot Ulcers With Biologic Skin Substitutes: A Systematic Review and Meta-Analysis

Gordon, Alex J; Alfonso, Allyson R; Nicholson, Joey; Chiu, Ernest S
BACKGROUND:Development of diabetic foot ulcers is a common complication of diabetes. Standard-of-care (SOC) therapy alone is often not sufficient to heal these wounds, resulting in application of adjuvant wound therapies including biologic skin substitutes. Although a variety of products exist, it has been difficult to formulate conclusions on their clinical efficacy. We therefore performed a systematic review and meta-analysis on the efficacy of healing diabetic foot ulcers with biologic skin substitutes. METHODS:A systematic review was conducted in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Four electronic databases (PubMed/MEDLINE, EMBASE [Ovid], Cochrane CENTRAL [Ovid], and Web of Science) were searched from inception through February 27, 2019. Searches included keywords and subject headings pertaining to 3 main concepts: biologic skin substitutes, wound healing, and diabetic foot ulcers. Cochrane randomized controlled trial filters were used to narrow results. Data were extracted from 54 included articles, and risk-of-bias assessments were conducted by 2 independent reviewers. The primary objective was to calculate a pooled risk ratio for the proportion of wounds completely closed by 12 weeks. Secondary objectives included a pooled risk ratio for the proportion of wounds completely closed by 6 weeks and mean time to healing. RESULTS:Twenty-five studies were identified that assessed the proportion of complete wound closure by 12 weeks. We found that wounds treated with biologic dressings were 1.67 times more likely to heal by 12 weeks than those treated with SOC dressings (P < 0.00001). Five studies assessed the proportion of complete wound closure by 6 weeks. Wounds treated with biologic dressings were 2.81 times more likely to heal by 6 weeks than those treated with SOC dressings (P = 0.0001). Descriptively, 29 of 31 studies that assessed time to healing favored biologic dressings over SOC dressings. CONCLUSIONS:This systematic review provides supporting evidence that biologic skin substitutes are more effective than SOC dressings at healing diabetic foot ulcers by 12 weeks. Future studies must address the relative benefits of different skin substitutes as well as the long-term implications of these products and their financial considerations.
PMID: 31513064
ISSN: 1536-3708
CID: 4101302

Ethical Issues in Aesthetic and Reconstructive Surgical Innovation: Perspectives of Plastic Surgeons

Lee, Z-Hye; Reavey, Patrick L; Rodriguez, Eduardo D; Chiu, Ernest S; Caplan, Arthur L
Innovative surgery is defined as a novel procedure, a significant modification of a standard technique, or a new application of an established technique. Although innovation is a crucial part of improving patient care in plastic surgery, there are various ethical considerations and dilemmas in performing unvalidated techniques and procedures, especially for non-life-threatening indications. The aim of this study was to gain a better understanding regarding the motivations and ethical considerations of plastic surgeons in their decision to perform innovative operations. An anonymous, institutional review board-approved, online survey was sent to members of the American Society of Plastic Surgeons and other international plastic surgeons worldwide. The survey asked respondents to rank various factors that influence their decisions to perform innovative plastic surgery, both reconstructive and aesthetic, on a five-point Likert scale. Seven hundred thirty-three of 26,028 plastic surgeons (response rate, 2.9 percent) responded to the survey. Although similar factors were considered to be important for both reconstructive and aesthetic operations, only approximately 50 percent of respondents considered institutional review board approval to be an important factor when considering innovation in both reconstructive (50 percent) and aesthetic surgery (51 percent), suggesting that respondents do not consider innovation a form of research that ought be subject to standard research protections. Overall, the authors' survey suggests that more effort must be extended to ethical training in plastic surgery to create a stronger professional atmosphere regarding innovation and, possibly, to the creation of a more formal group charged with oversight of innovation.
PMID: 30589815
ISSN: 1529-4242
CID: 3560162

Introductory Note to Special Issue for World Association for Plastic Surgeons of Chinese Descent

Chiu, Ernest S; Guo, Lifei
PMID: 30418280
ISSN: 1536-3708
CID: 3458372

Current Management of Self-Inflicted Wounds in Surgery: A Critical Review

David, Joshua A; Rifkin, William J; Chiu, Ernest S
OBJECTIVE:Despite the presence of self-inflicted wounds (SIWs) across all of medicine, our current understanding of SIWs in surgery is limited. Here, we detail the pertinent aspects of the history, diagnosis, decision making, and management of SIWs as they relate to the field of surgery. In addition, we present the first comprehensive review of SIWs across the surgical literature. SUMMARY BACKGROUND DATA/BACKGROUND:Self-inflicted wounds have been recognized for much of recorded human history and span a wide spectrum of patient behaviors, motivations, and underlying psychiatric illnesses. METHODS:We performed a comprehensive literature review of SIWs in the surgical literature. In total, 189 articles were identified. RESULTS:The most common site of primary SIW was the upper extremity (36.2%), and the most common presenting injuries were lacerations (22.7%). Forty-two percent of patients had received prior surgical procedures for their SIWs, and the average length of time preceding treatment or diagnosis of an injury as an SIW was 2.29 years. Self-inflicted wounds resulting from foreign body insertions were most common (25.9%). Psychiatric factors accounted for most SIW production (35%), of which factitious disorder was the most common (12.7%). Other motivations for SIW production included autoeroticism (8.6%), substance related (6.6%), organic brain disease (5.0%), and self-therapy/surgery by patients (1.7%). Surgical management was ultimately required for nearly 75% of SIWs and was successful in most cases. CONCLUSIONS:Self-inflicted wounds are frequently encountered in all surgical specialties and encompass many anatomic locations, presentations, and patient-motivating factors. Surgical intervention is common, and successful outcomes are often achieved.
PMID: 30383582
ISSN: 1536-3708
CID: 3401122

Advances in Upper Extremity Scleroderma Wound Care

Cohen, Joshua M; Sibley, Rachel A; Chiu, Ernest S; Sharma, Sheel
GENERAL PURPOSE/UNASSIGNED:To provide information about the pathophysiology, diagnosis, and treatment options for systemic sclerosis. TARGET AUDIENCE/BACKGROUND:This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care. LEARNING OBJECTIVES/OUTCOMES/UNASSIGNED:After participating in this educational activity, the participant should be better able to:1. Describe the pathophysiology, signs, symptoms, and diagnosis of systemic sclerosis.2. Outline the evidence-based medical and surgical management of systemic sclerosis. ABSTRACT/UNASSIGNED:OBJECTIVE:: To perform a targeted review of systemic sclerosis, including epidemiology, pathophysiology, diagnosis, signs and symptoms, and medical and surgical management of upper extremity manifestations. DATA SOURCES AND STUDY SELECTION/METHODS:An electronic literature review was conducted using PubMed for all publication dates through October 2017. Searches were performed using combinations of terms including "systemic sclerosis," "scleroderma," "management," "upper extremity," "hypercalcinosis," "Raynaud's phenomenon," "sympathectomy," and "digital ulcers." Only full-length articles written in English that discussed the management of upper extremity scleroderma were used. DATA EXTRACTION AND SYNTHESIS/METHODS:The epidemiology, pathophysiology, diagnosis, upper extremity manifestations, and medical and surgical management of systemic sclerosis were reviewed. The case described in this article reports the utility of microsurgical interventions in the treatment of medically refractory upper extremity systemic sclerosis. CONCLUSIONS:Systemic sclerosis is a rare rheumatologic disease that greatly impacts quality of life. Medical management is the mainstay of treatment, propelling an improvement in the dismal 10-year cumulative survival rate from 54% in the 1970s to 66% in the 1990s. However, the pathophysiology of this disease is still poorly understood, and when medical management fails and the disease inevitably progresses, surgical approaches are critical.
PMID: 30234574
ISSN: 1538-8654
CID: 3301572

Osteoarthritis and Stem Cell Therapy in Humans: A Systematic Review

Jevotovsky, David S; Alfonso, Allyson R; Einhorn, Thomas A; Chiu, Ernest S
OBJECTIVE:Osteoarthritis (OA) is a leading cause of disability in the world. Mesenchymal stem cells (MSCs) have been studied to treat OA. This review was performed to systematically assess the quality of literature and compare the procedural specifics surrounding MSC therapy for osteoarthritis. DESIGN/METHODS:PubMed, CINAHL, EMBASE and Cochrane Central Register of Controlled Trials were searched for studies using MSCs for OA treatment (final search December 2017). Outcomes of interest included study evidence level, patient demographics, MSC protocol, treatment results and adverse events. Level I and II evidence articles were further analyzed. RESULTS:Sixty-one of 3,172 articles were identified. These studies treated 2,390 patients with osteoarthritis. Most used adipose-derived stem cells (ADSCs) (n=29) or bone marrow-derived stem cells (BMSCs) (n=30) though the preparation varied within group. 57% of the sixty-one studies were level IV evidence, leaving five level I and nine level II studies containing 288 patients to be further analyzed. Eight studies used BMSCs, five ADSCs and one peripheral blood stem cells (PBSCs). The risk of bias in these studies showed five level I studies at low risk with seven level II at moderate and two at high risk. CONCLUSION/CONCLUSIONS:While studies support the notion that MSC therapy has a positive effect on OA patients, there is limited high quality evidence and long-term follow-up. The present study summarizes the specifics of high level evidence studies and identifies a lack of consistency, including a diversity of MSC preparations, and thus a lack of reproducibility amongst these articles' methods.
PMID: 29544858
ISSN: 1522-9653
CID: 2993092