Autoimmune, Autoinflammatory Disease and Cutaneous Malignancy Associations with Hidradenitis Suppurativa: A Cross-Sectional Study.

BACKGROUND: Hidradenitis suppurativa (HS) is a debilitating cutaneous disease characterized by severe painful inflammatory nodules/abscesses. At present, data regarding the epidemiology and pathophysiology of this disease are limited. OBJECTIVE: To define the prevalence and comorbidity associations of HS. METHODS: This was a cross-sectional study of EPICTM Cosmos© examining over 180 million US patients. Prevalences were calculated by demographic and odds ratios (OR) and identified comorbidity correlations. RESULTS: All examined metabolism-related, psychological, and autoimmune/autoinflammatory (AI) diseases correlated with HS. The strongest associations were with pyoderma gangrenosum [OR 26.56; confidence interval (CI): 24.98-28.23], Down syndrome (OR 11.31; CI 10.93-11.70), and polycystic ovarian syndrome (OR 11.24; CI 11.09-11.38). Novel AI associations were found between HS and lupus (OR 6.60; CI 6.26-6.94) and multiple sclerosis (MS; OR 2.38; CI 2.29-2.48). Cutaneous malignancies were largely not associated in the unsegmented cohort; however, among Black patients, novel associations with melanoma (OR 2.39; CI 1.86-3.08) and basal cell carcinoma (OR 2.69; CI 2.15-3.36) were identified. LIMITATIONS: International Classification of Diseases (ICD)-based disease identification relies on coding fidelity and diagnostic accuracy. CONCLUSION: This is the first study to identify correlations between HS with melanoma and basal cell carcinoma (BCC) among Black patients as well as MS and lupus in all patients with HS.

The Impact of Body Mass Index on Adverse Outcomes Associated with Panniculectomy: A Multimodal Analysis.

BACKGROUND: Overhanging pannus may be detrimental to ambulation, urination, sexual function, and social well-being. Massive weight loss patients often have high residual body mass index (BMI) and comorbidities presenting a unique challenge in panniculectomy patient selection. This study aims to better characterize the role of BMI in post-operative complications following panniculectomy. METHODS: A meta-analysis attempted to assess the impact of BMI on complications following panniculectomy. Cochrane Q and I 2 test statistics measured study heterogeneity, with subsequent random effects meta-regression investigating these results. After this, all panniculectomy patients in the National Surgical Quality Improvement Program (NSQIP) years 2007-2019, were analyzed. Univariate and multivariable tests assessed the relative role of BMI on 30-day postoperative complications. RESULTS: Thirty-four studies satisfied inclusion criteria, revealing very high heterogeneity (Cochrane Q = 2453.3; I 2 = 99.1%), precluding further meta-analysis results. Receiver operator curves demonstrated BMI was a significant predictor of both all causes (area under the curve (AUC): 0.64, 95%CI:0.62-0.66) and wound complications (AUC:0.66, 95%CI:0.63-0.69). BMI remained significant following multivariable regression analyses. Restricted cubic spines demonstrated marginal increases in complication incidence above 33.2 and 35 for all-cause and wound complications respectively. CONCLUSION: Reported literature regarding postoperative complications in panniculectomy patients is highly heterogeneous, and may limit evidence-based care. Complication incidence positively correlated with BMI, though ROC demonstrated its limitations as the sole predictive variable. Further, RSC demonstrated diminishing marginal predictive capacity of BMI for incremental increases in BMIs above 33.2-35 kg/m 2. These findings support a re-evaluation of the role of BMI cut-offs in panniculectomy patient selection.

The Role of Radiation Therapy in Adult and Pediatric Keloid Management: A National Survey of Radiation Oncologists.

INTRODUCTION: Radiation therapy is a promising modality for treating keloids after surgical excision. However, it is currently not standard practice among physicians because of concern surrounding the risk of radiation-induced secondary cancers, especially among pediatric patients. There is minimal research assessing the complications for radiation therapy in keloid management. AIM: The goal of this study was to determine radiation oncologists' perspectives about the utility and appropriateness of radiation therapy for keloid management in both adult and pediatric patients. This study also aimed to characterize radiation modality, dose, fractionation, and secondary complications observed by providers. METHODS: An electronic survey was delivered to 3102 members of the American Society for Radiation Oncology. The survey subjects were radiation oncologists who are currently practicing in the United States. Rates of responses were analyzed. RESULTS: A total of 114 responses from practicing radiation oncologists were received. Of these, 113 providers (99.1%) supported radiation therapy for keloid management in adults, whereas only 54.9% supported radiation therapy for pediatric patients. Of 101 providers that treated adults in the past year, the majority used external beam: electrons (84.2%), applied 3 fraction regimens (54.4%), and delivered radiation within 24 hours postexcision (45.5%). In pediatric patients, only 42 providers reported treating at least 1 patient. The majority used electron beam radiation (76.2%), applied 3 faction regimens (65%), and delivered radiation on the same day of keloid excision (50.0%) The main concern when treating pediatric patients were risk of secondary malignancy (92.1%). CONCLUSION: Although radiation therapy appears to be a widely accepted adjuvant treatment option for adults with keloids, the use of radiation therapy for pediatric patients is less widely accepted because of concerns regarding secondary malignancy. The findings suggest additional studies need to be carried out to assess the risk of those complications.

Supraclavicular Artery Island Flap for Head and Neck Oncologic Reconstruction: 15-year Experience, Past, Present, Future.

Head and neck reconstruction poses unique challenges due to the complex structure of the region. Primary goals include soft-tissue coverage, adequate color and texture match, and minimal donor-site morbidity. Local and musculocutaneous regional flaps have largely been replaced with fasciocutaneous free flaps (FFF) over recent years. The supraclavicular artery island flap (SCAIF), a locoregional, fasciocutaneous, axially-based flap, has been shown to produce similar outcomes to FFF. We present our 15-year experience using the SCAIF for head and neck reconstruction, discuss its evolution, and provide case examples for its range of indications. Methods: Retrospective chart review identified 128 patients who underwent reconstruction of the head and neck with the SCAIF between the years 2006-2021 at Tulane University Medical Center. Patient demographics, lengths of stay, operative times, surgical indications, and complications were recorded. Results: The cohort mean age was 66.9 years. Mean lengths of stay and follow-up times were 6.9 days and 9.1 months, respectively. The most common indications for SCAIF reconstruction were recurrent radiated neck disease (n=27, 21.1%), pharyngeal wall defects (n=23, 18.0%), and parotidectomy defects (n=21, 16.4%). Overall complication rate was 17.2%. Partial thickness flap loss (5.5%), contained pharyngeal leak (3.2%), and distal tip necrosis (2.4%) were the most common complications. No functional donor site morbidity was encountered. Conclusions: The SCAIF is a versatile, fasciocutaneous, axially-based flap able to produce similar outcomes to FFF in the reconstruction of the head and neck region while reducing costs, lengths of stay, operative times, and donor site morbidity.

Hyperbaric Oxygen Therapy for Threatened Nipple-Sparing Mastectomy Flaps: An Adjunct for Flap Salvage.

BACKGROUND: Nipple-sparing mastectomy (NSM) is emerging as the standard of care for treatment of breast cancer because of its oncologic safety and superior aesthetic outcomes. However, ischemia or necrosis of the skin flap and/or nipple-areola complex remain frequent complications. Hyperbaric oxygen therapy (HBOT) has emerged as a potential adjunct for flap salvage, although it is not currently a widely accepted practice. Here we review our institution's experience using a protocol of HBOT in patients with signs of flap ischemia or necrosis after NSM. METHODS: Retrospective review identified all patients treated with HBOT at our institution's hyperbaric and wound care center because of signs of ischemia after NSM. Treatment parameters consisted of 90-minute dives at 2.0 atmosphere once or twice daily. Patients unable to tolerate dives were considered a treatment failure, whereas those lost to follow-up were excluded from analysis. Patient demographics, surgical characteristics, and treatment indications were recorded. Primary outcomes assessed were flap salvage (no operative revision), need for revision procedures, and treatment complications. RESULTS: A total of 17 patients and 25 breasts met the inclusion criteria. The mean ± SD time to initiation of HBOT was 9.47 ± 12.7 days. The mean ± SD age was 46.7 ± 10.4 years, and mean ± SD follow-up time was 36.5 ± 25.6 days. Indications for NSM included invasive cancer (41.2%), carcinoma in situ (29.4%), and breast cancer prophylaxis (29.4%). Initial reconstruction included tissue-expander placement (47.1%), autologous reconstruction with deep inferior epigastric flaps (29.4%), and direct-to-implant reconstruction (23.5%). Hyperbaric oxygen therapy indications included ischemia or venous congestion for 15 breasts (60.0%) and partial thickness necrosis for 10 breasts (40.0%). Flap salvage was achieved in 22 of 25 breasts (88.0%). Reoperation was required for 3 breasts (12.0%). Hyperbaric oxygen therapy-related complications were observed in 4 patients (23.5%), which included 3 patients with mild ear pain and 1 patient with severe sinus pressure leading to treatment abortion. CONCLUSIONS: Nipple-sparing mastectomy is an invaluable tool for breast and plastic surgeons to achieve oncologic and cosmetic goals. However, ischemia or necrosis of the nipple-areola complex or mastectomy skin flap remains frequent complications. Hyperbaric oxygen therapy has emerged as a possible intervention for threatened flaps. Our results demonstrate the utility of HBOT in this population to achieve excellent NSM flap salvage rates.

Pneumothorax, Pneumomediastinum, and Pneumoperitoneum After Combined Abdominoplasty and Liposuction: Rare Adverse Events.

ABSTRACT: Liposuction is a relatively safe surgical procedure, with most complications being minor in nature. However, there are a few life-threatening complications that should not be underestimated. We present a case of a patient who developed bilateral pneumothoraces, pneumomediastinum, and pneumoperitoneum after combined liposuction and abdominoplasty. Although this presentation is rare, clinicians should keep a high index of suspicion in patients presenting with shortness of breath, chest pain, and/or abdominal pain after liposuction.

Radiation therapy modalities for keloid management: A critical review.

OBJECTIVE: To provide a critical overview of current radiation modalities for keloid management. BACKGROUND: Despite multimodal therapies, keloids that can develop following injury are poorly controlled. A number of studies have suggested that post-excisional radiation therapy can reduce rates of keloid recurrence. However, existing reports span multiple radiation modalities, including brachytherapy, electron beam radiation, and photon radiation. In this review, we describe the advantages and disadvantages of commonly used radiation techniques and highlight their efficacy in keloid management. RESULTS: Electron beam radiation and high-dose rate brachytherapy are the two most commonly used modalities for adjuvant radiotherapeutic management of keloids and can provide effective keloid control but may be suited for different kinds of keloid growth patterns. Increasing biologically equivalent dose (BED) likely improves rates of control, though the clinical significance of this finding remains to be elucidated. Though radiation treatments are associated with acute and chronic side effects, the risk of developing a secondary malignancy is minimal. CONCLUSIONS: While radiation therapy is a promising modality for treating keloids, more studies of a prospective, randomized nature are needed to standardize its utility.

Surgical Management of Occipital Neuralgia: A Systematic Review of the Literature.

BACKGROUND: Occipital neuralgia (ON) is a primary headache disorder characterized by severe, paroxysmal, shooting or stabbing pain in the distribution of the greater occipital, lesser occipital, and/or third occipital nerves. Both medical and surgical options exist for treating headaches related to ON. The purposes of this study are to summarize the current state of surgical ON management through a systematic review of the literature and, in doing so, objectively identify future directions of investigation. METHODS: We performed a systematic review of primary literature on surgical management for ON of at least level IV evidence. Included studies were analyzed for level of evidence, therapeutic intervention, study design, sample size, follow-up duration, outcomes measured, results, and risk of bias. RESULTS: Twenty-two studies met the inclusion criteria. All 22 studies used patient-reported pain scores as an outcome metric. Other outcome metrics included complication rates (7 studies; 32%), patient satisfaction (7 studies; 32%), quality of life (7 studies; 18%), and analgesic usage (3 studies; 14%). Using the ROBINS-I tool for risk of bias in nonrandomized studies, 7 studies (32%) were found to be at critical risk of bias, whereas the remaining 15 studies (68%) were found to be at serious risk of bias. CONCLUSIONS: Greater occipital nerve decompression seems to be a useful treatment modality for medically refractory ON, but further prospective, randomized data are required.

Clinical Outcomes of 2019 COVID-19 Positive Patients Who Underwent Surgery: A New York City Experience.

BACKGROUND: The coronavirus disease 2019 (COVID-19) global pandemic has led to a halt in elective surgeries throughout the United States and many other countries throughout the world. Early reports suggest that COVID-19 patients undergoing surgery have an increased risk of requiring intensive care unit (ICU) admission and overall mortality. MATERIALS AND METHODS: A retrospective review was performed of all COVID-19, positive with polymerase chain reaction confirmation, patients who had surgery between February 17, 2020 and April 26, 2020 at a major New York City hospital. Clinical characteristics and outcomes including ICU admission, ventilator requirement, and mortality were analyzed. RESULTS: Thirty-nine COVID-19 surgical patients were identified. Mean age was 53.9 y, and there were more men than women in the cohort (56.4% versus 43.6%). Twenty-two patients (56.4%) had a confirmed positive COVID-19 test preoperatively, and the remainder tested positive after their procedure. The majority (59%) of patients had an American Society of Anesthesiologists (ASA) class of 3 or higher. Postoperatively, 7 patients (17.9%) required ICU level care with a mean length of stay of 7.7 d. There were 4 deaths (10.3%) in this patient population, all of which occurred in patients who were ASA class 3 or 4. CONCLUSIONS: This study represents the largest study to date, that objectively analyzes the outcomes of COVID-19 positive patients who underwent surgery. Overall, ICU admission rates and mortality are similar to reported rates in the literature for nonsurgical COVID-19 patients. Notably, in COVID-19 patients with ASA 1 or 2, there was a 0% mortality rate in the postoperative period.

Coronavirus Disease 2019 State Guidelines on Elective Surgery: Considerations for Plastic and Reconstructive Surgeons.

Vague recommendations regarding elective surgery have been proposed by national organizations in an attempt to conserve personal protective equipment and to protect healthcare workers during the coronavirus disease 2019 pandemic. In response, some states have attempted to provide more clear guidance. METHODS: An internet search was performed to identify and analyze what guidance each state published through government websites through April 10, 2020. RESULTS: Thirty-five states and the District of Columbia published guidance in the form of either a recommendation or a mandate. Procedures relating to cosmetics and malignancy were found to be mentioned in 4 and 12 states, respectively, but ultimately lacked case-specific information. CONCLUSIONS: Current government and state recommendations do not provide clear guidance on how plastic and reconstructive surgeons should approach elective surgeries. Ultimately, it is the responsibility of all plastic and reconstructive surgeons to operate under appropriate law while individualizing their practices to best suit the needs of their patients while being mindful of resource limitations and exposure risks.

The Impact of COVID-19-based Suspension of Surgeries on Plastic Surgery Practices: A Survey of ACAPS Members.

The coronavirus disease 2019 (COVID-19) pandemic led to a drastic decline in the number of elective surgeries performed in the United States. Many national societies and local governments provided recommendations for surgeons to initially suspend and progressively resume elective surgery. The authors used a survey to the American Council of Academic Plastic Surgeons (ACAPS) to assess the effect on plastic surgeons. METHODS: An electronic survey questionnaire was distributed to 532 members of ACAPS. Data on individual and plastic surgery practice demographics, COVID-19 prevention measures, and procedures or services that were being performed or delayed were collected and analyzed. RESULTS: An estimated 161 members (30.2%) completed the survey. Changes in hospital policy were cited as the most common reason (89%) for determining which procedures were currently offered. Results vary by specialty. Notably, <10% of respondents who normally offered aesthetic procedures currently offered any procedures during the survey. Subspecialty-specific results and prevention measures when seeing clinic patients are further summarized and discussed. CONCLUSIONS: Plastic surgeons have seen a drastic decrease in the variety of procedures and services they are allowed to offer during the COVID-19 pandemic. To help plan a return to normalcy, surgeons should create and implement plans to protect patients and staff from coronavirus transmission, assure financial solvency, and consider the effects of delayed surgeries on both the physical and mental health of their patients. In doing so, surgeons and their patients will be better prepared in the event of a resurgence of the virus.

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

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.

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

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.

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

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: 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.

Advances in Upper Extremity Scleroderma Wound Care.

GENERAL PURPOSE: To provide information about the pathophysiology, diagnosis, and treatment options for systemic sclerosis. TARGET AUDIENCE: 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: 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: 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: 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: 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.

Patient Perception and Satisfaction Questionnaire for Microtia Reconstruction: A New Clinical Tool to Improve Patient Outcome.

BACKGROUND: Patients' satisfaction is an increasingly important indicator for successful ear reconstruction surgeries. However, there is no scientifically sound patient-based outcome instrument in this field. This study aims at developing a patient-reported outcome measure for microtia reconstruction for investigating patients' satisfaction and perception of reconstructed ear and clinical researches. METHODS: The development of questionnaire included 3 stages. Traditional psychometric tests were used for analysis. At first stage, a preliminary version of the questionnaire was developed using qualitative methods, including interviews with 10 patients. At second stage, the questionnaire was field tested by survey of 76 patients. Redundant items were deleted; acceptability, reliability, and responsiveness were examined. At third stage, survey was conducted to another 94 patients with the shortened questionnaire to further evaluate the acceptability, reliability, and validity. RESULTS: A questionnaire of 12 items for microtia reconstruction was developed. Results demonstrated the instrument satisfied the current criteria. The acceptability (missing data <1%, largest endorsement frequencies <60%), reliability (Cronbach alphas >0.80, item-total correlations >0.7, interitem correlation <0.8), validity (scale intercorrelations r = 0.59, low correlations with age and sex) of the questionnaire. CONCLUSIONS: The questionnaire is an acceptable, reliable, and validated outcome measure for evaluation of ear reconstruction esthetic outcomes in microtia patients. It could be used for further comparison studies and effectiveness studies.

Hyperbaric Oxygen Therapy: Exploring the Clinical Evidence.

GENERAL PURPOSE: To provide information about hyperbaric oxygen therapy (HBOT), its mechanisms, indications and safe applications based on clinical evidence. TARGET AUDIENCE: 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: After participating in this educational activity, the participant should be better able to:1. Recall the physiology of wound healing and the mechanisms of action of HBOT.2. Identify current applications of HBOT based on clinical evidence as well as its risks and contraindications. ABSTRACT: Treating chronic wounds and infections are challenging medical problems worldwide. Hyperbaric oxygen therapy (HBOT), the administration of 100% oxygen at pressures greater than 1.4 atmosphere absolute in a series of treatments, can be used as an adjunctive therapy in many wound care settings because it improves oxygenation and neovascularization and decreases inflammation in chronic wounds. A growing number of studies support the benefits of HBOT for enhancing wound healing and decreasing the likelihood of negative events such as amputation. However, many practitioners are unfamiliar with HBOT. This article provides a general introduction to HBOT, reviews the physiology and mechanisms of behind HBOT, discusses all the indications for HBOT, and explores in-depth the clinical evidence for HBOT in the treatment of arterial insufficiencies, diabetic ulcers, delayed radiation injury, and chronic refractory osteomyelitis.