Novel Pharmacological Treatment Options of Steroid-Refractory Graft-versus-Host Disease.

Background: Graft-versus-host disease (GVHD) is a potentially fatal complication of allogeneic hematopoietic stem cell transplant. The mainstay of treatment is corticosteroids, which are ineffective in 30-50% of cases. Steroid-refractory GVHD (SR-GVHD) confers a poor prognosis, with high mortality rates despite appropriate therapy. While there is no reliable treatment for SR-GVHD, a variety of novel therapeutic options are slowly emerging and have yet to be examined simultaneously. Objectives: This review evaluates the potential of novel therapeutic options, as well as their efficacy and safety, for the treatment of SR-GVHD. Study Design. The literature search was conducted in PubMed, Cochrane, and Embase, employing MeSH terms and keywords. The studies had to be prospective phases 1, 2, or 3. We excluded retrospective and nonoriginal studies. Results: While the only approved drug for acute GVHD is ruxolitinib with an impressive overall response rate of 73.2% and a complete response of 56.3%, several monoclonal antibodies and other agents are currently under investigation, offering promising results. These include anti-CD2, anti-CD147, IL-2 antagonist, a mixture of anti-CD3 and anti-CD7 antibodies, anti-CD25, monoclonal antibody to a4b7 on T-cells, anti-CD26, pentostatin, sirolimus, denileukin diftitox, infliximab, itacitinib, and alpha-1 antitripsin. However, the toxicities associated with these novel drugs need further investigation. For chronic GVHD, approved options include ruxolitinib with an ORR of up to 62%, ibrutinib with an ORR of up to 77%, and belumosudil with an ORR of up to 77%. Meanwhile, emerging treatments include tyrosine kinase inhibitors such as nilotinib, rituximab, and low-dose IL-2, as well as axatilimab and pomalidomide. Conclusion: While their efficacy needs to be better evaluated through large-scale, multicenter, randomized clinical trials, these novel agents show potential and could provide a better alternative for SR-GVHD treatment in the future.

Optimizing Perioperative Care in Transsphenoidal Pituitary Surgery: Considerations for Enhanced Recovery After Surgery.

OBJECTIVE: To identify key recommendations for maximizing the efficiency and efficacy of perioperative care in transsphenoidal pituitary surgery. METHODS: The authors performed a comprehensive literature search of Enhanced Recovery After Surgery protocols implemented for patients undergoing transsphenoidal adenomectomy (TSA); individual recommendations were abstracted, and the evidence base thoroughly reviewed. RESULTS: The authors identified 19 individual recommendations pertinent to the care of patients undergoing TSA, which were subdivided into preoperative (n=6), intraoperative (n=6), and postoperative (n=7) interventions. Key factors recommended for minimizing length of stay, preventing readmission, and improving patient outcomes included comprehensive patient education, multidisciplinary evaluation, avoidance of routine lumbar drain placement and nasal packing, and rigorous postoperative monitoring of pituitary function and salt-water imbalances. The overall level of evidence for 7/19 (37%) implemented recommendations was found to be low, suggesting a need for continued research in this patient population. CONCLUSION: Several key interventions should be considered in the development of Enhanced Recovery After Surgery protocols for TSA, which may aid in further decreasing length of stay and promoting positive patient outcomes.

Use of the O-Z flap as an alternative to free tissue transfer for reconstruction of large scalp defects.

Objective: The reconstruction of large scalp defects poses both functional and cosmetic challenges. While free tissue transfer remains the standard for defects larger than 30 cm2, prolonged anesthesia and postoperative complications remain significant limitations. The purpose of this study is to evaluate the use of O-Z flaps for the reconstruction of large scalp defects and to describe the techniques employed. Methods: This is a retrospective analysis of ten patients who underwent reconstructive surgery using an O-Z flap approach for large scalp defects between July 2017 and June 2019. The parameters included in this study were patient demographics, tumor characteristics, and postoperative management, collected for at least a year after surgery. Results: In this cohort, the mean age was 76.1 years and 90% were male. All patients were treated for neoplastic skin lesions, with 70% located on the vertex and 30% located on the temporoparietal region. The mean size of defect was 52.0 cm2 (range: 38.6 to 63.8 cm2). The maximum hospital stay was two days, and no patients were readmitted within 30 days of surgery. There were no cases of wound infection or flap necrosis. All patients reported pain control with acetaminophen and ibuprofen. Four patients received adjuvant radiation, and there was no delay to receiving treatment following surgery. Conclusions: The O-Z flap is a reliable alternative for the reconstruction of non-irradiated scalp defects in the vertex and temporoparietal regions up to 63 cm2. This technique provides advantages for patients, including hairline preservation, shorter hospital stays, and decreased postoperative complications.

Clinical Practice Guidelines on Sentinel Lymph Node Biopsy for Melanoma: A Systematic Review and Quality Appraisal Using the AGREE II Instrument.

Sentinel lymph node biopsy (SLNB) is a minimally invasive surgical procedure that is standard of care for the evaluation of clinically negative regional lymph nodes in patients with cutaneous melanoma. As the presence of metastases dictates patient prognosis and determines the need for further regional disease control or adjuvant therapy, SLNB is invaluable to clinical decision-making in patients presenting with melanoma. However, the indications for SLNB, specifically among patients with thin (<1 mm) or thick (>4 mm) melanomas, remain unclear. A number of clinical practice guidelines (CPGs) have been developed outlining recommendations for the role of lymph node biopsy in the management of melanoma. However, to date, their quality has not been critically appraised. Our objective was to systematically evaluate all available CPGs on this topic using the validated Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument. Four total guidelines met the inclusion criteria and underwent appraisal. Only one CPG achieved a "high" quality rating, indicating scores of >60% in at least five of the six AGREE II domains. Across all CPGs, the lowest scoring domains were "Applicability" and "Stakeholder involvement," which had average scores of 41.2% and 48.3%, respectively. Based on the AGREE II instrument, the quality of existing CPGs for the indications of SLNB for melanoma is low. Future guidelines should be pilot tested to evaluate barriers to application and should utilize multidisciplinary guideline development teams that include patients and key stakeholders in addition to clinical experts from all relevant disciplines.

Clinical practice guidelines for management of medullary thyroid carcinoma: An AGREE II appraisal.

PURPOSE: Medullary thyroid carcinoma (MTC) is a rare and aggressive form of thyroid neoplasia that requires multidisciplinary collaboration for effective management. We systematically appraise the quality of clinical practice guidelines (CPG) for the diagnosis and treatment of MTC using the Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument. MATERIALS AND METHODS: A systematic literature search was performed to identify CPGs pertaining to the diagnosis and treatment of MTC. Data were abstracted from guidelines meeting inclusion criteria and appraised by four independent reviewers in the six domains of quality defined by the AGREE II. Intraclass correlation coefficients (ICC) were calculated across domains to qualify interrater reliability. RESULTS: Fourteen guidelines met inclusion criteria. No guideline achieved a score of >60 % in five or more AGREE II quality domains, which is required to gain designation as 'high' quality. One "average quality" guideline authored by the British Thyroid Association achieved a score of >60 % in three quality domains. The remaining thirteen (92.9 %) CPGs demonstrated low quality content, with deficits most pronounced in domains 3, 5, and 6, suggesting a lack of rigorously developed, clinically applicable, and transparent information. CONCLUSIONS: As the diagnosis and treatment of MTC continues to evolve, the development of high-quality guidelines becomes increasingly important; few existing meet appropriate standards.

Clinical Practice Guidelines for the Management of Patients With Cleft Lip and Palate: A Systematic Quality Appraisal Using the Appraisal of Guidelines for Research and Evaluation II Instrument.

ABSTRACT: Patients with cleft lip and/or palate require complex and longitudinal care by a multidisciplinary cleft team. Unfortunately, delivery of cleft care is often fragmented, and care practices can vary significantly. Multiple clinical practice guidelines (CPGs) have been proposed to provide a standardized framework for cleft care delivery. As CPGs have gained popularity, there has been increasing demand to maintain the quality of existing guidelines. A comprehensive search of EMBASE, MEDLINE via PubMed, Scopus, Cochrane and grey literature sources published from January 1, 1990 to December 31, 2020 was conducted to identify CPGs for the care of cleft patients. The Appraisal of Guidelines for Research and Evaluation, 2nd edition II tool was used to assess the quality of selected CPGs. Intraclass coefficients were calculated to assess agreement among appraisers. Eleven guidelines were identified for study inclusion. One guideline was classified as "high" quality by Appraisal of Guidelines for Research and Evaluation II criteria, and the remaining guidelines were classified as "average" or "low" quality. The "Clarity of Presentation" domain achieved the highest mean score (76.9% ± 11.7%) across CPGs, whereas the "Rigor of Development" domain scored the lowest (35.6% ±â€Š21.2%). Intraclass coefficients analysis reflected very good inter-rater reliability across all domains (0.853-0.987). These findings highlight significant variability in the quality of existing CPGs for the global management of patients with cleft lip and/or palate. The "Rigor of Development" domain reflects the greatest opportunity for improvement. Given these findings, future guidelines may prioritize incorporating a systematic review of existing evidence into recommendations.

Retrospective analysis of silicon intubation by Ritleng probe and Sutupak suture fixed in silicone tube in congenital nasolacrimal duct obstruction.

Purpose: The aim of this study was to perform a retrospective review of the outcome of silicon intubation using the Ritleng probe and a modified braided silk suture (Ethicon Sutupak) fixed in a silicone tube in children with congenital nasolacrimal duct obstruction (CNLDO). Methods: Records of all children between 1 and 12 years of age who underwent silicone tube intubation with the Ritleng probe and Ethicon Sutupak suture (2-0) fixed in silicone tube for CNLDO with a minimum of 1-year follow-up were identified. The hollow Ritleng probe was inserted via the canaliculus into the inferior meatus. The Sutupak thread-guide, attached to the silicone tube, was advanced through the probe lumen and retrieved using a hook under endoscopic visualization. The tube ends were tied to each other and tube removal was planned after 3 months. Absence of watering, discharge, and matted lashes after removal of silicone tube was defined as success. Results: One hundred and fifty-two eyes of 152 children with a mean age of 3.26 ± 2.3 years were included in the study. The procedure was successful in 145 eyes (95%) after removal of the silicone intubation with relief of symptoms observed in most patients by fifth-day follow-up (n = 120 eyes, 83%). The mean duration of follow-up was 3.48 ± 1.3 years. No other significant differences were observed between patients who did (n = 47) and did not (n = 105) have previous probing including success rates (95% vs. 96%, P = 0.89). Conclusion: Silicone intubation with Ritleng probe and Sutupak suture fixed in silicone tube was successful in resolution of symptoms of CNLDO in majority of patients. Using a low-cost suture did not affect success rates.

Mitochondrial dynamics, positioning and function mediated by cytoskeletal interactions.

The ability of a mitochondrion to undergo fission and fusion, and to be transported and localized within a cell are central not just to proper functioning of mitochondria, but also to that of the cell. The cytoskeletal filaments, namely microtubules, F-actin and intermediate filaments, have emerged as prime movers in these dynamic mitochondrial shape and position transitions. In this review, we explore the complex relationship between the cytoskeleton and the mitochondrion, by delving into: (i) how the cytoskeleton helps shape mitochondria via fission and fusion events, (ii) how the cytoskeleton facilitates the translocation and anchoring of mitochondria with the activity of motor proteins, and (iii) how these changes in form and position of mitochondria translate into functioning of the cell.

Reducing ER Visits and Readmissions after Head and Neck Surgery Through a Phone-based Quality Improvement Program.

OBJECTIVE: Evaluate the impact of a patient phone calls and virtual wound checks within 72 hours of discharge on reducing emergency room (ER) visits and readmissions. METHODS: Single arm trial with comparison to historical control data of patients undergoing multi subsite head and neck cancer operations or laryngectomy between July 2017 and June 2018 at a tertiary academic medical center. Patients were contacted within 72 hours of hospital discharge. As a supplement to the call, patients were given the opportunity to video conference with and/or send pictures to the provider with additional questions via a designated wound care phone. RESULTS: Ninety-one patients met inclusion criteria, of whom 83 (91.2%) were contacted. Six patients (7%) were readmitted, of whom three had not been able to be reached. The patients who had been unable to be contacted were readmitted for dysphagia (2), and a urinary tract infection (1). The contacted patients were advised to go the ER during the call for concerns for postoperative bleeding (2) and gastrointestinal bleeding (1). Twenty-five patients (30%) utilized the wound care phone. 18 patients (21.7%) reported that the phone call survey prevented them from going to the ER. When compared to the prior year, there was as statistically significant decrease in ER visits (P < .05), and no change in readmissions. CONCLUSIONS: Implementation of a phone call in the early postoperative period has the potential to decrease unnecessary ER visits and enhance patient satisfaction. This may decrease strain on the health care system and improve patient care. LEVEL OF EVIDENCE: 4.

Creation of Educational Videos for Patients Undergoing Nonelective Surgery: Tools for the COVID-19 Era.

Currently, there is a lack of reliable patient-centric educational videos in otolaryngology. In light of COVID-19, otolaryngologists have had to see patients through virtual visits and have been encouraged to send patients home after nonelective surgery. Additionally, most hospitals are not permitting patients' family members and caretakers to enter patient rooms, thus often preventing them from receiving adequate education on postoperative care. Embracing educational videos as a valuable tool will improve communication with patients, especially during the times of COVID-19 and beyond. The goal of this commentary is to describe our early lessons learned in developing educational videos in a streamlined, efficient, and accessible format that can be shared among all members of the multidisciplinary and design production team. Background on the use of multimedia to reduce patient anxiety and frustration with surgical interventions is provided.

Effect of Protein Intake on Lean Body Mass in Functionally Limited Older Men: A Randomized Clinical Trial.

Importance: The Institute of Medicine set the recommended dietary allowance (RDA) for protein at 0.8 g/kg/d for the entire adult population. It remains controversial whether protein intake greater than the RDA is needed to maintain protein anabolism in older adults. Objective: To investigate whether increasing protein intake to 1.3 g/kg/d in older adults with physical function limitations and usual protein intake within the RDA improves lean body mass (LBM), muscle performance, physical function, fatigue, and well-being and augments LBM response to a muscle anabolic drug. Design, Setting, and Participants: This randomized clinical trial with a 2 × 2 factorial design was conducted in a research center. A modified intent-to-treat analytic strategy was used. Participants were 92 functionally limited men 65 years or older with usual protein intake less thanor equal to 0.83 g/kg/d within the RDA. The first participant was randomized on September 21, 2011, and the last participant completed the study on January 19, 2017. Interventions: Participants were randomized for 6 months to controlled diets with 0.8 g/kg/d of protein plus placebo, 1.3 g/kg/d of protein plus placebo, 0.8 g/kg/d of protein plus testosterone enanthate (100 mg weekly), or 1.3 g/kg/d of protein plus testosterone. Prespecified energy and protein contents were provided through custom-prepared meals and supplements. Main Outcomes and Measures: The primary outcome was change in LBM. Secondary outcomes were muscle strength, power, physical function, health-related quality of life, fatigue, affect balance, and well-being. Results: Among 92 men (mean [SD] age, 73.0 [5.8] years), the 4 study groups did not differ in baseline characteristics. Changes from baseline in LBM (0.31 kg; 95% CI, -0.46 to 1.08 kg; P = .43) and appendicular (0.04 kg; 95% CI, -0.48 to 0.55 kg; P = .89) and trunk (0.24 kg; 95% CI, -0.17 to 0.66 kg; P = .24) lean mass, as well as muscle strength and power, walking speed and stair-climbing power, health-related quality of life, fatigue, and well-being, did not differ between men assigned to 0.8 vs 1.3 g/kg/d of protein regardless of whether they received testosterone or placebo. Fat mass decreased in participants given higher protein but did not change in those given the RDA: between-group differences were significant (difference, -1.12 kg; 95% CI, -2.04 to -0.21; P = .02). Conclusions and Relevance: Protein intake exceeding the RDA did not increase LBM, muscle performance, physical function, or well-being measures or augment anabolic response to testosterone in older men with physical function limitations whose usual protein intakes were within the RDA. The RDA for protein is sufficient to maintain LBM, and protein intake exceeding the RDA does not promote LBM accretion or augment anabolic response to testosterone. Trial Registration: clinicaltrials.gov Identifier: NCT01275365.

Design of a randomized trial to determine the optimum protein intake to preserve lean body mass and to optimize response to a promyogenic anabolic agent in older men with physical functional limitation.

The dietary protein allowance for older men to maintain lean body mass and muscle strength and to accrue optimal anabolic responses to promyogenic stimuli is poorly characterized. The OPTIMEN trial was designed to assess in older men with moderate physical dysfunction and insufficient habitual protein intake (

Unilateral Congenital and Developmental Cataracts in Children in India: How Useful Were Long-Term Outcomes of Surgery? Miraj Pediatric Cataract Study 4.

PURPOSE: To study visual outcomes and stereopsis after a 3-8 year follow-up in unilateral congenital and developmental cataracts. DESIGN: Clinical case series. METHODS: Children who underwent surgery for unilateral pediatric cataract from 2004 to 2008 were traced and reexamined prospectively from 2010 to 2011. Demographic and clinical factors were noted from their retrospective chart readings. All children underwent visual acuity assessment and comprehensive ocular examinations including stereoacuity in a standardized manner during the prospective follow-up visits. Details of amblyopia management were recorded for univariate and multivariate analyses. RESULTS: Forty-eight eyes of 48 children had a mean follow-up of 4.4 years between surgery and assessment (SD, 1.6 years). Twenty-four (50%) were boys, and the average age at surgery was 10.2 years (SD, 4.1). Two (4.2%) were congenital, 14 (29.2%) developmental, and 32 (66.7%) congenital/developmental cataracts. Preoperatively, 38 (79.2%) had vision less than 3/60. After surgery, 12 (25%) had improved best-corrected visual acuity (BCVA) of 6/18 or greater, 4 (8.3%) had BCVA of 6/24 to 6/60, and 32 (66.7%) had BCVA of less than 6/60. Eleven (22.9%) had binocular single vision 480 seconds or less of arc on Titmus test. Preoperative vision (P = 0.034) was significantly associated with postoperative visual outcomes, but not age at surgery (P = 0.14), sex (P = 0.897), type of surgery (P = 0.371), or type of intraocular lens (P = 0.66). The use of phacoemulsification was associated with better vision, but it was not significant (P = 0.069). CONCLUSIONS: Long-term visual outcomes in unilateral pediatric cataracts were subnormal due to deprivation amblyopia, but vision improved over preoperative levels and helped in binocular stereoacuity. Some preoperative vision was associated with better visual outcomes.

Vaccines in Dermatology.

A vaccine is a biological preparation that improves immunity to a specific disease. More than two centuries have passed since the first successful vaccine for smallpox was developed. We've come a long way since. Today's vaccines are among the 21(st) century's most successful and cost-effective public health tools for preventing diseases.

Long term outcomes of bilateral congenital and developmental cataracts operated in Maharashtra, India. Miraj pediatric cataract study III.

AIM: To study long term outcome of bilateral congenital and developmental cataract surgery. SUBJECTS: 258 pediatric cataract operated eyes of 129 children. MATERIALS AND METHODS: Children who underwent pediatric cataract surgery in 2004-8 were traced and examined prospectively in 2010-11. Demographic and clinical factors were noted from retrospective chart readings. All children underwent visual acuity estimation and comprehensive ocular examination in a standardized manner. L. V. Prasad Child Vision Function scores (LVP-CVF) were noted for before and after surgery. STATISTICS: Statistical analysis was done with SPSS version 16 including multi-variate analysis. RESULTS: Children aged 9.1 years (std dev 4.6, range 7 weeks-15 years) at the time of surgery. 74/129 (57.4%) were boys. The average duration of follow-up was 4.4 years (stddev 1.6, range 3-8 years). 177 (68.6%) eyes had vision <3/60 before surgery, while 109 (42.2%) had best corrected visual acuity (BCVA) >6/18 and 157 (60.9%) had BCVA >6/60 3-8 years after surgery. 48 (37.2%) had binocular stereoacuity <480 sec of arc by TNO test. Visual outcome depended on type of cataract (P = 0.004), type of cataract surgery (P < 0.001), type of intra-ocular lens (P = 0.05), age at surgery (P = 0.004), absence of post-operative uveitis (P = 0.01) and pre-operative vision (P < 0.001), but did not depend on delay (0.612) between diagnosis and surgery. There was a statistically significant improvement for all the 20 questions of the LVP-CVF scale (P < 0.001). CONCLUSION: Pediatric cataract surgery improved the children's visual acuity, stereo acuity and vision function. Developmental cataract, use of phacoemulsification, older children and those with better pre-operative vision had betterlong-termoutcomes.

Consuming a hypocaloric high fat low carbohydrate diet for 12 weeks lowers C-reactive protein, and raises serum adiponectin and high density lipoprotein-cholesterol in obese subjects.

OBJECTIVE: High fat, low carbohydrate (HFLC) diets have become popular tools for weight management. We sought to determine the effects of a HFLC diet compared to a low fat high carbohydrate (LFHC) diet on the change in weight loss, cardiovascular risk factors and inflammation in subjects with obesity. METHODS: Obese subjects (29.0-44.6 kg/m2) recruited from Boston Medical Center were randomized to a hypocaloric LFHC (n=26) or HFLC (n=29) diet for 12 weeks. RESULTS: The age range of subjects was 21-62 years. As a percentage of daily calories, the HFLC group consumed 33.5% protein, 56.0% fat and 9.6% carbohydrate and the LFHC group consumed 22.0% protein, 25.0% fat and 55.7% carbohydrate. The change in percent body weight, lean and fat mass, blood pressure, flow mediated dilation, hip:waist ratio, hemoglobin A1C, fasting insulin and glucose, and glucose and insulin response to a 2h oral glucose tolerance test did not differ (P>0.05) between diets after 12 weeks. The HFLC group had greater mean decreases in serum triglyceride (P=0.07), and hs-CRP (P=0.03), and greater mean increases in HDL cholesterol (P=0.004), and total adiponectin (P=0.045) relative to the LFHC. Secreted adipose tissue adiponectin or TNF-α did not differ after weight loss for either diet. CONCLUSIONS: Relative to the LFHC group, the HFLC group had greater improvements in blood lipids and systemic inflammation with similar changes in body weight and composition. This small-scale study suggests that HFLC diets may be more beneficial to cardiovascular health and inflammation in free-living obese adults compared to LFHC diets.

Causes, epidemiology, and long-term outcome of traumatic cataracts in children in rural India.

PURPOSE: To describe preoperative factors, long-term (>3 years) postoperative outcome and cost of traumatic cataracts in children in predominantly rural districts of western India. Subjects : Eighty-two traumatic cataracts in 81 children in a pediatric ophthalmology department of a tertiary eye-care center. MATERIALS AND METHODS: Traumatic cataracts operated in 2004-2008 were reexamined prospectively in 2010-2011 using standardized technique. Cause and type of trauma, demographic factors, surgical intervention, complications, and visual acuity was recorded. STATISTICAL ANALYSIS: Data analysis done by using SPSS (Statistical package for social sciences) version 17.0 We have used Chi-square test, Fisher's exact test, paired t-test to find the association between the final vision and various parameters at 5% level of significance; binary logistic regression was performed for visual outcome ≥6/18 and ≥6/60. RESULTS: The children were examined in a 3-7 year follow-up (4.35 ± 1.54). Average age at time of surgery was 10.4 ± 4.43 years (1.03 to 18). Fifty (61.7%) were boys. Forty (48.8%) were blunt and 32 (39%) were sharp trauma. The most common cause was wooden stick 23 (28.0%) and sharp thorn 14 (17.1%). Delay between trauma and presentation to hospital ranged from same day to 12 years after the injury with median of 4 days. The mean preoperative visual acuity by decimal notation was 0.059 ± 0.073 and mean postoperative visual acuity was 0.483 ± 0.417 (P < 0.001). Thirty-eight (46.3%) had best corrected visual acuity (BCVA) ≥6/18 and 51 (62.2%) had BCVA ≥ 6/60. In univariable analysis, visual outcome (≥6/18) depended on type of surgery (P = 0.002), gender (P = 0.028), and type of injury (P = 0.07)-sharp trauma and open globe injury had poorer outcomes; but not on age of child, preoperative vision, and type of surgeon. On multivariable binary logistic regression, only gender was significant variable. Of the 82 eyes, 18 (22%) needed more than one surgery. The parents spent an average of Rs. 2250 ($45) for the surgery and 55 (66.4%) were from lower socio-economic class. CONCLUSION: The postoperative visual outcomes varied and less than half achieved ≥ 6/18.

Acute aortic occlusion in a child secondary to lap-belt injury treated with thromboendarterectomy and primary repair.

Abdominal aortic injury as a result of blunt trauma is a rare event and has been described in few children. A 6-year-old girl presented with acute bilateral lower extremity ischemia, and a triad of acute aortic occlusion, intra-abdominal visceral injury, and a lumbar chance fracture after sustaining a seat belt injury from a motor vehicle collision. An emergency aortic thromboendarterectomy and primary repair were performed. This represents one of the few reports of acute traumatic aortic thrombosis in a child and highlights the surgical treatment of acute abdominal aortic injury in a pediatric patient.

Board certification and credentialing in nutrition.

Board certification and credentialing in nutrition for physicians are problematic issues. Many board examinations are offered, but have few candidates and poor recognition. This discussion focuses on the feasibility of establishing a single board examination body. Some key considerations were identified to improve credentialing and examination in nutrition for physicians. Increasing the number of nutrition physicians and improving recognition of their credentials should ultimately translate to better patient health and safety. Consolidation of board examinations may be in the best interest of physician nutritionists.