The “Difficult Learner” in anesthesiology: Challenges,pitfalls, and recommendations

Struggling learners often require interventions that are time‐consuming and emotionally exhausting for both the trainee and faculty. Numerous barriers, including lack of resources, faculty development, and fear of legal retribution, can impede medical educators from developing and implementing robust remediation plans. Despite the large volume of literature citing professionalism education and the “hidden curriculum” as problem areas in medical education, frontline educators lack practical tools and empowerment to address unprofessionalism in trainees. The paucity of resources in this arena has led to decreased job satisfaction, increased burnout, and an exodus from academic medicine. Department leadership acknowledgment and investment in training faculty on remediation strategies for learners in difficulty and providing tools to meet these challenging job demands will improve faculty's job satisfaction and overall well‐being. The authors review salient literature and methodology for diagnosing learners in difficulty, with focus on a high‐yield, pragmatic approach that can be taken by medical training programs, including those that lack a robust medical education infrastructure.     

Comparison of “subjective” and “objective” measures of severity of urinary incontinence in women

The aims of this study were to compare “subjective” measures of severity of urinary incontinence to similar “objective” measures, establish their statistical correlation, and determine the effect of specific urodynamic diagnosis on such correlations. Baseline data was available from 265 women entered into a clinical trial studying pharmacologic and behavioral interventions for urinary incontinence. The “subjective” measures of incontinence were obtained by patient recall during history taking and included: the number of incontinent episodes in I week, the number of perincal pads used during I week, and the number ot clothing changes required due to wetness. The “objective” measures of severity included: the number of incontinent episodes per week as recorded on a 7-day diary, the number of perineal pads used per week, also recorded on a diary, and the amount of fluid lost during a standardized pad test Analysis consisted of Pearson correlations and linear regressions to determine equations for the prediction of objective measurement on the basis of the corresponding subjective measure. Significant positive correlations were seen between “subjective” and “objective” measurements for the comparisons of number of weekly incontinent episodes (R = 0.63), and tor the weekly number of pads used (R = 0.81). The comparison between the number of clothing changes and the amount of fluid lost during pad testing was also significantly but less strongly correlated (R = 0.24). For the correlations between subjective and objective determinations of urinary incontinent episodes and for those between clothing changes and pad testing, the urodynamic diagnosis had no effect on the correlation coefficients, but did have a statistically significant effect on the intercept. “Subjective” measures of severity of urinary incontinence will provide a reasonable estimate of “objective” measures of severity of urinary incontinence in women. Therefore in a clinical setting, it seems logical to use “subjective” measures to assess both baseline severity and response to intervention. © 1995 Wiley-Liss, Inc.     

Periosteum,bone's “smart” bounding membrane,exhibits direction‐dependent permeability

The periosteum serves as bone's bounding membrane, exhibits hallmarks of semipermeable epithelial barrier membranes, and contains mechanically sensitive progenitor cells capable of generating bone. The current paucity of data regarding the periosteum's permeability and bidirectional transport properties provided the impetus for the current study. In ovine femur and tibia samples, the periosteum's hydraulic permeability coefficient, k, was calculated using Darcy's Law and a custom‐designed permeability tester to apply controlled, volumetric flow of phosphate‐buffered saline through periosteum samples. Based on these data, ovine periosteum demonstrates mechanically responsive and directionally dependent (anisotropic) permeability properties. At baseline flow rates comparable to interstitial fluid flow (0.5 µL/s), permeability is low and does not exhibit anisotropy. In contrast, at high flow rates comparable to those prevailing during traumatic injury, femoral periosteum exhibits an order of magnitude higher permeability compared to baseline flow rates. In addition, at high flow rates permeability exhibits significant directional dependence, with permeability higher in the bone to muscle direction than vice versa. Furthermore, compared to periosteum in which the intrinsic tension (pre‐stress) is maintained, free relaxation of the tibial periosteum after resection significantly increases its permeability in both flow directions. Hence, the structure and mechanical stress state of periosteum influences its role as bone's bounding membrane. During periods of homeostasis, periosteum may serve as a barrier membrane on the outer surface of bone, allowing for equal albeit low quiescent molecular communication between tissue compartments including bone and muscle. In contrast, increases in pressure and baseline flow rates within the periosteum resulting from injury, trauma, and/or disease may result in a significant increase in periosteum permeability and consequently in increased molecular communication between tissue compartments. Elucidation of the periosteum's permeability properties is key to understanding periosteal mechanobiology in bone health and healing, as well as to elucidate periosteum structure and function as a smart biomaterial that allows bidirectional and mechanically responsive fluid transport. © 2013 American Society for Bone and Mineral Research.     

“Burried strip” versus “tube” in hypospadias repair: Analysis of 82 consecutive cases

The goal of this study was to analyze, discuss, and compare risks and results obtained with the “buried strip” and two “tube” techniques for hypospadias repair in a personal series. From 1976 through 1982, 82 patients underwent complete two-stage repair of hypospadias using either the Denis Browne procedure (23 patients) or the Belt-Fuqua technique (41) and Byars procedure (18), respectively. Only those patients with originally distal and mid shaft hypospadias plus chordee were included in this series. The mean age at the time of repair was 4.9 years, with a range of two to sixteen years. The overall complication rate was 13.4 per cent (11 of 82 The tube procedures alone had a complication rate of 6.8 per cent (4 of 59) compared with 30 per cent (7 of 23) with the Denis Browne technique. Complications noted were: fistulas 6 (Denis Browne 5, Belt-Fuqua 1); meatal stenosis 4 (Denis Browne 2, Byars 2); urethral stricture 1 (Belt-Fuqua Our results confirm the general belief that tube techniques have a higher reliability than does the Denis Browne procedure. Each procedure improves with the experience of the surgeon, although the tube technique appears to cause less trouble in our hands. The running subcutaneous and intracutaneous sutures give a far smoother healing. We believe this study supports the virtues of two-stage tube repairs.     

Should we use platelet‐rich plasma as an adjunct therapy to treat “acute wounds,” “burns,” and “laser therapies”: A review and a proposal of a quality criteria checklist for further studies

Platelet‐rich plasma seems to help wound healing. The goal of this review is to determine if the adjunction of platelet‐rich plasma enhances the clinical outcome of acute wounds, burns, and laser therapies. A PubMed and Cochrane library search was performed by two reviewers with the senior author as a consultant. Medical Subject Headings search terms used were the following: [“Platelet‐rich plasma” OR “Platelet gel” OR “Platelet growth factor”] AND [“Acute wound” OR “Wound” OR “Burn” OR “Laser”]. We included controlled studies assessing the clinical outcome of acute wounds, burns, and laser therapies treated by platelet‐rich plasma. Nine randomized controlled studies, six prospective controlled studies, and two retrospective controlled studies were included. Regarding acute wounds, three randomized controlled trials found a statistical benefit regarding either the healing time, the return back to work time, the quality of life, or the pain and three prospective controlled studies found a statistical difference regarding the velocity of healing. Platelet‐rich plasma decreased the intensity or duration of erythema after laser therapy in four randomized studies. Regarding the long‐term outcome of laser therapies, two studies found a statistical benefit and two others did not. Platelet‐rich plasma accelerates acute wound healing and decreases erythema after laser therapies. Its use on burns has not been enough studied.     

“Double‐barrel endocarditis”

We report a case of an 18‐year‐old woman who presented with infective endocarditis (IE), in two conduits percutaneously delivered in the right ventricle outflow tract (“double‐barrel endocarditis”). The patient's clinical presentation, echocardiogram findings, infectious agent, clinical management, surgical approach, and follow‐up assessment are described. Percutaneous pulmonary valve implantation has emerged as a viable therapy for conduit dysfunction in the right ventricular outflow tract. Although the percutaneous approach has several advantages, this strategy and the valves used are not complication‐free. IE after transcatheter valve deployment has evoked the growing concern, as there is a higher incidence in these patients compared with patients with surgically repaired pulmonary valves. As a result, this type of surgical treatment is especially important.     

Candida albicans “fungus ball” in bladder

With the use of antibacterial agents, the incidence of fungal infections has risen. The urinary tract is susceptible to these superinfections. We report, herein, a case of candidiasis of the bladder that demonstrates the classic radiographic findings of “fungus ball” in the bladder.     

“Repeat” High Ligation

This paper describes a method for the safe and expeditious exposure of the saphenofemoral junction when recurrent varicose veins in the groin are due to a previous incomplete “high ligation”.