Association between type of reconstruction after Mohs micrographic surgery and surgeon-, patient-, and tumor-specific features: a cross-sectional study.

BACKGROUND: There are few data to indicate whether the type of final wound defect is associated with the type of post-Mohs repair. OBJECTIVE: To determine the methods of reconstruction that Mohs surgeons typically select and, secondarily, to assess the association between the method and the number of stages, tumor type, anatomic location, and patient and surgeon characteristics. METHODS: Statistical analysis of procedure logs of 20 representative young to mid-career Mohs surgeons. RESULTS: The number of stages associated with various repairs were different (analysis of variance, p < .001.). Linear repairs, associated with the fewest stages (1.5), were used most commonly (43-55% of defects). Primary repairs were used for 20.2% to 35.3% of defects of the nose, eyelids, ears, and lips. Local flaps were performed typically after two stages of Mohs surgery (range 1.98-2.06). Referral for repair and skin grafts were associated with cases with more stages (2.16 and 2.17 stages, respectively). Experienced surgeons were nominally more likely perform flaps than grafts. Regression analyses did not indicate any association between patient sex and closure type (p = .99) or practice location and closure type (p = .99). CONCLUSIONS: Most post-Mohs closures are linear repairs, with more bilayered linear repairs more likely at certain anatomic sites and after a larger number of stages.

An update on super wide field microscopy in dermatologic surgery.

Microscopic interpretation represents the central tenet for diagnosis and eradication of cutaneous tumors. Standard microscopes are limited by relatively high-powered objectives and smaller viewable diameter. Newer equipment offers optional lower powered objectives including 1X and 2X objectives and can be combined with super widefield eyepieces to greatly enhance the viewable area during pathologic interpretation of slides. Mohs micrographic surgery represents one of the most useful areas in which the dermatologic surgeon gleans multiple efficiencies from these microscope systems. One such system that was recently trialed, the Nikon 80i microscope, proved to be incredibly easy to use and multiple efficiencies were quickly realized.

Association between number of stages in Mohs micrographic surgery and surgeon-, patient-, and tumor-specific features: a cross-sectional study of practice patterns of 20 early- and mid-career Mohs surgeons.

OBJECTIVE: To determine the number of Mohs micrographic surgery (MMS) stages per tumor taken by early- to mid-career Mohs surgeons and to assess other factors affecting number of stages. METHODS: Statistical analysis of MMS logs of 20 representative early- to mid-career surgeons. RESULTS: There was no difference in stages when surgeons were divided into two categories based on whether they had more than 500 cases per year or more than 5 years of experience. Similarly, when surgeons were categorized according to geographic location, there was no difference in number of stages. Anatomic location was associated with the number of stages (analysis of variance, p<.001), with the greatest number of stages for nose (2.01) and ear (2.06) lesions and the fewest for neck (1.47), back and shoulder (1.47), and lower extremity (1.33) lesions. Basal cell carcinomas required 1.92 stages (median 2.00), compared with 1.66 (median 1.00) for squamous cell carcinoma (p<.001). CONCLUSIONS: Early- and mid-career Mohs surgeons appear to remove tumors with similar numbers of stages regardless of their experience, case volume, or geographic location. Number of stages varies with anatomic location and tumor type. The authors have indicated no significant interest with commercial supporters.

Treatment of HIV lipoatrophy and lipoatrophy of aging with poly-L-lactic acid: a prospective 3-year follow-up study.

BACKGROUND: Poly-L-lactic acid (PLLA), marketed as Sculptra (Dermik Laboratories, Bridgewater, NJ), is used for subcutaneous volume restoration. Durability studies are ongoing and longevity data are not yet available. OBJECTIVE: We sought to evaluate the long-term efficacy and safety of PLLA during 3 years of follow-up. METHODS: We conducted a prospective cohort study. Primary outcome measures were facial lipoatrophy score, complications, and patient satisfaction. RESULTS: In all, 65 patients were initially treated with PLLA; 27 patients were HIV positive and 38 were HIV negative. Of those patients, 12 were lost to follow-up. Both HIV-positive and HIV-negative patients demonstrated statistically significant improvement in facial lipoatrophy score at the end of 3 years; HIV-positive patients had a net improvement of 2.50 points (P < .01) and HIV-negative patients had a net improvement of 1.11 points (P < .01) on the Facial Lipoatrophy Grading Scale. Subgroup analyses revealed no statistically significant difference in facial lipoatrophy score between years 2 and 3 among patients who did not receive treatment during the third year. Complications were rare and included subcutaneous papule formation, which improved spontaneously and partially responded to subcision in one patient. LIMITATIONS: Sample size was limited in this study. In addition, 12 of 65 patients (18%) were lost to follow-up between years 2 and 3. CONCLUSIONS: PLLA provides volumetric correction of HIV lipoatrophy and lipoatrophy of aging. Results appear to be long lasting and correction can be maintained for up to 3 years with additional treatment sessions. In a subset of patients, correction is maintained for at least 1 year after their last treatment session. Patient satisfaction with PLLA is high.

Eruptive disseminated Spitz nevi.

Eruptive disseminated Spitz nevi represent an extremely rare variant of Spitz nevi, with only 13 previous cases reported in the literature. We describe a unique case marked by the eruptive onset of numerous lesions posing considerable diagnostic difficulty.

The relationship between family medical history and childhood vitiligo.

BACKGROUND: The association between a family history of vitiligo and other autoimmune/endocrine diseases and increased incidence of childhood vitiligo has been described; however, the influence of family history on the clinical characteristics of childhood vitiligo has rarely been investigated. OBJECTIVE: We sought to examine the relationship between family history and the incidence, extent, and course of childhood vitiligo. METHODS: A retrospective chart review and telephone interviews were performed for 137 pediatric patients with vitiligo and 140 control patients (patients with acne, warts, or molluscum contagiosum matched in age, sex, and ethnicity to the study group). Information about the age, sex, ethnicity, age of onset and diagnosis, site of onset, distribution, treatment, course of disease, and family history was obtained. RESULTS: Patients with vitiligo and an extended family history of vitiligo were more likely to have an earlier age of onset of disease than those with a negative family history (odds ratio = 3.70, P = .024). There was no association between family history and site of onset, distribution, or course of disease. LIMITATIONS: A relatively small sample size, recall bias, disease misclassification, and confounding factors are potential limitations of this study. CONCLUSION: Earlier onset of pediatric vitiligo is linked to a family history of vitiligo. Awareness of this association can allow for closer monitoring, earlier detection, and earlier initiation of treatment.

Mail surveys can achieve high response rates in a dermatology patient population.

In order to understand the burden of skin disease on patient populations, researchers need to be able to measure exposures and outcomes of interest in a population-based study. One method of obtaining such information is mailed patient surveys. This method of obtaining information, however, raises concerns regarding possible low response rates, and to the best of our knowledge, this method has not been attempted in large dermatology patient populations with a high response rate. We sought to determine whether using a slightly modified version of the Dillman Total Design Method as a mailed survey protocol would result in a high response rate in a dermatology population. A mail survey was sent using a slightly modified version of Dillman's Total Design Method to 4894 patients seen in the Dermatology Department of the University of Pennsylvania, who were diagnosed with nonmelanoma skin cancer, dermatophytosis, acne rosacea, seborrheic keratosis, or warts; 74.1% of the subjects responded to the mailings; 69.8% (n=3203) of patients returned a completed survey. Response rates (both as overall response and as survey completers only) were high across a wide spectrum of dermatologic illnesses and did not vary significantly by entry diagnosis. Dillman's Total Design Method appears to be an effective tool for researchers studying the burden of skin disease in a large sample of dermatology patients.

Effect of antibiotics on the oropharyngeal flora in patients with acne.

OBJECTIVE: To estimate the prevalence and resistance patterns of Streptococcus pyogenes and Staphylococcus aureus in the oropharynx of individuals with acne who were using or not using antibiotic therapy. DESIGN: A cross-sectional study. SETTING: The Dermatology Department of the Hospital of the University of Pennsylvania, Philadelphia. PATIENTS: Patients with acne. MAIN OUTCOME MEASURES: Presence or absence of S pyogenes and S aureus in the oropharynx as determined by culture and their resistance patterns to tetracycline antibiotics as determined by agar disk diffusion. RESULTS: Of 105 patients who participated, 42 were using oral or topical antibiotics and 63 patients were not using antibiotics. Six (10%) of those 63 not using any antibiotics had positive S pyogenes cultures compared with 13 (33%) of those successfully evaluated using antibiotics (n = 39) (prevalence risk ratio, 3.5; 95% confidence interval, 1.4-8.6; P=.003). A total of 85% of S pyogenes cultures (11/13) from those using antibiotics were resistant to at least 1 tetracycline antibiotic compared with 20% (1/5) from those not using antibiotics (P=.01). Of those not using antibiotics, 29% (18/62) had positive S aureus cultures compared with 22% (9/41) of those using antibiotics (prevalence risk ratio, 0.76; 95% confidence interval, 0.38-1.5; P=.42). No significant differences in resistance patterns of S aureus were found. CONCLUSIONS: Streptococcus pyogenes colonization and resistance in the oropharynx are associated with antibiotic therapy in patients with acne. The clinical and long-term effects of this finding need to be studied further.

Validity of patient self-reported history of skin cancer.

OBJECTIVE: To determine the validity of patient self-report of skin cancer history. DESIGN: A cohort of patients was randomly selected from the case group in a prior case-control study involving skin cancer, and a second cohort was randomly selected from the controls of that study. Patient self-reported history (as determined by responses to a survey) was compared with the gold standard of chart documentation of a pathology report or a procedure note from Mohs micrographic surgery demonstrating skin cancer. SETTING: University-based outpatient dermatology clinic. PATIENTS: Three hundred patients were selected. MAIN OUTCOME MEASURES: Patients were considered to have correctly classified their skin cancer history if their self-reported history was consistent with chart documentation. RESULTS: We obtained chart information for 258 patients.Of those patients, 183 (70.9%) had chart documentation of nonmelanoma skin cancer, and 16 (6.2%) had chart documentation of a melanoma. Using chart documentation as the gold standard, we found that patients correctly identified their basal cell carcinoma status in 84.3% of cases; their squamous cell carcinoma status in 81.5% of cases; their overall nonmelanoma skin cancer status in 91.8% of cases; their melanoma status in 94.8% of cases; and their overall skin cancer status in 92.6% of cases. Patients' self-reported history of skin cancer of any type had a positive predictive value of 95.1% and a negative predictive value of 85.9%. CONCLUSIONS: Self-reported history of skin cancer had a high degree of sensitivity and specificity and a high positive and negative predictive value within the study population. Obtaining medical information by patient report appears to be a useful tool for determining medical history of skin cancer.

Mohs micrographic surgery: Facts and controversies.

The field of Mohs micrographic surgery has expanded in the last 70 years, as have the indications for the procedure and the techniques that have been used. As a result, differences in the practice of Mohs micrographic surgery have emerged. This contribution explores current controversies within Mohs micrographic surgery and critically appraises the available evidence on both sides of the issues.

Characteristics of dermatologists who read dermatopathology slides.

BACKGROUND: The characteristics and prevalence of dermatologists reading dermatopathology slides are not well understood. METHODS: We surveyed 1406 members of the American Academy of Dermatology (AAD), including all 497 who were also members of the American Society of Dermatopathology (ASDP) along with a random sample of the remaining AAD members who were not ASDP members. Seven hundred and thirty of 1406 (51.9%) responded with a usable survey. Logistic regression was used to analyze responses by ASDP member dermatologists, non-ASDP member dermatologists and in a weighted analysis for dermatologists as a whole. RESULTS: A total of 32.7% of dermatologists as a whole generated at least one final microscopic diagnosis in the preceding year. Multivariate analysis demonstrated that men were significantly more likely to read dermatopathology slides (odds ratio (OR) = 1.90; 95% confidence interval (CI) 1.16-3.12; p = 0.01). Additionally, there was significant variation by region (p < 0.001); compared with dermatologists in the Midwest, dermatologists in the Southeast (OR = 0.39; 95% CI 0.19-0.80) were significantly less likely to read slides, while those in the Mountain (OR = 3.09; 95% CI 1.10-8.72) and West (OR = 2.01; 95% CI 1.04-3.90) regions were significantly more likely. There were no significant associations found between reading slides and the year of residency completion, the number of patients seen per week or being primarily in academics. CONCLUSIONS: The practice of dermatologists reading dermatopathology slides is relatively common, with significant regional and sex differences.

So you want to be a dermasurgeon: how to get training or choose a fellowship.

BACKGROUND There are many routes to obtaining training in dermasurgery. OBJECTIVE The objective is to discuss some considerations that may guide selection of dermasurgery training. METHODS Current training options are reviewed. RESULTS Some considerations that may guide selection of type of dermasurgery training include: (1) individual temperament; (2) the subtype of dermasurgery in which training is desired (Mohs, cosmetic surgery, laser); (3) family and geographic factors; (4) preference for private practice versus academic career; and (5) proportion of future practice to be devoted to dermasurgery. CONCLUSIONS There are a growing number of training choices for budding dermasurgeons, with multiple options available for each set of particular circumstances.

Frequency of use of suturing and repair techniques preferred by dermatologic surgeons.

BACKGROUND: There are many closure techniques and suture types available to cutaneous surgeons. Evidence-based data are not available regarding the frequency of use of these techniques by experienced practitioners. OBJECTIVE: To quantify, by anatomic site, the frequency of use of common closure techniques and suture types by cutaneous surgeons. METHOD: A prospective survey of the members of the Association of Academic Dermatologic Surgeons that used length-calibrated visual-analog scales to elicit the frequency of use of specific suture techniques. RESULTS: A response rate of 60% (61/101) indicated reliability of the received data. Epidermal layers were closed most often, in descending order, by simple interrupted sutures (38-50%), simple running sutures (37-42%), and vertical mattress sutures (3-8%), with subcuticular sutures used more often on the trunk and extremities (28%). The most commonly used superficial sutures were nylon (51%) and polypropylene (44%), and the most common absorbable suture was polyglactin 910 (73%). Bilayered closures, undermining, and electrocoagulation were used, on average, in 90% or more sutured repairs. The median diameters (defined as longest extent along any axis) of most final wound defects were 1.1 to 2.0 cm (56%) or 2.1 to 3.0 cm (37%). Fifty-four percent of wounds were repaired by primary closure, 20% with local flaps, and 10% with skin grafting, with the remaining 15% left to heal by second intent (10%) or referred for repair (5%). Experience-related differences were detected in defect size and closure technique: defects less than 2 cm in diameter were seen by less experienced surgeons, and defects greater than 2 cm by more experienced surgeons (Wilcoxon's rank-sum test: p=.02). But more experienced surgeons were less likely to use bilayered closures (r=-0.28, p=.036) and undermining (r=-0.28, p=.035). CONCLUSIONS: There is widespread consensus among cutaneous surgeons regarding optimal suture selection and closure technique by anatomic location. More experienced surgeons tend to repair larger defects but, possibly because of their increased confidence and skill, rely on less complicated repairs.

Safety of radiofrequency treatment over human skin previously injected with medium-term injectable soft-tissue augmentation materials: a controlled pilot trial.

BACKGROUND AND OBJECTIVES: Several soft-tissue augmentation materials are now available for reduction of nasolabial fold creases and perioral rhytides. Nasolabial folds and perioral rhytides can also be improved by skin tightening delivered by non-ablative radiofrequency (RF) treatment. The purpose of this study was to assess the safety of RF treatment over skin areas recently injected with medium-term injectable soft-tissue augmentation materials. STUDY DESIGN/MATERIALS AND METHODS: Five subjects were assigned to the experimental arm (augmentation materials plus RF) and one to the control arm (augmentation materials alone). Each subject received injections of 0.3 mL of hyaluronic acid derivative (Restylane) and calcium hydroxylapatite (Radiesse) 3 cm apart on the upper inner arm. Two weeks later, two non-overlapping passes of RF (Thermage ThermaCool TC) were delivered at 63.5 setting with medium-fast 1.5 cm2 tip over injected sites in all of the experimental subjects. Punch skin biopsies were obtained 3 days later from each of the two injection sites on each subject. RESULTS: Light microscopy and digital photomicrographs obtained at low, medium, and high power showed no difference between filler materials in experimental and control subjects. In both cases filler was evident at the deep dermal-subcutaneous junction. Nodule formation, foreign body extravasation, or hemorrhage/clot was not observed grossly or histologically. Subjects and physicians did not report any difference in signs and symptoms between the experimental and control arms. Slightly increased transitory pain was noted when RF was delivered over filler versus over normal skin. CONCLUSION: Applying RF treatment over the same area 2 weeks after deep dermal injection with hyaluronic acid derivatives or calcium hydroxylapatite does not appear to cause gross morphological changes in the filler material or surrounding skin. Further studies with different parameters are necessary to confirm these findings.

The lack of a relationship between atopic dermatitis and nonmelanoma skin cancers.

BACKGROUND: Very little has been published on whether a relationship exists between atopic dermatitis (AD) and skin cancer. OBJECTIVE: The goal of this study was to investigate whether individuals with AD are more likely than other patients with dermatologic conditions to develop nonmelanoma skin cancer. METHODS: This was a case-control, mailed-survey study. RESULTS: Of those contacted, 69.8% (3207 of 4591) filled out the survey. Of the control patients, 18.4% (254) had a history of AD as defined by the United Kingdom Working Party diagnosis criteria and composed 13.7% (210) of the cases. The unadjusted odds ratio of AD to nonmelanoma skin cancer was 0.70 (95% confidence interval 0.57-0.85). After fully adjusting for age, sex, ethnicity, and topical steroid use the odds ratio was 0.78 (0.61, 0.98). Using different definitions of AD had little effect on this result. CONCLUSIONS: It does not appear that patients with a history of AD are more likely to develop nonmelanoma skin cancers than other patients with dermatologic conditions.

Variability in nomenclature used for nevi with architectural disorder and cytologic atypia (microscopically dysplastic nevi) by dermatologists and dermatopathologists.

BACKGROUND: Although a nevus with the microscopic features of a "dysplastic nevus" is commonly seen, the nomenclature used to describe such a lesion has been thought to be inconsistent. A 1992 National Institutes of Health (NIH) Consensus Conference sought to unify nomenclature and suggested that the term "nevus with architectural disorder" be used along with a comment on melanocytic atypia. METHODS: We performed a cross-sectional mail survey to determine preferred terminology as well as the level of adherence to the NIH-recommended nomenclature. All 856 active members of the American Society of Dermatopathology (ASDP) and 1100 (13.0%) of the 8471 active members of the American Academy of Dermatology (AAD) were surveyed. RESULTS: Five hundred and thirty-three ASDP members and 483 AAD members who fulfilled eligibility criteria completed the questionnaire. The term "dysplastic nevus" was favored by the largest number of responders (favored by 39.1% of ASDP members and 62.3% of AAD members), while the 1992 NIH Consensus Conference-recommended terminology was the second most popular term (25.3% of ASDP and 15.1% of AAD members). Dermatopathologists (OR = 1.9, p = 0.0001) and those who had dual training in dermatology and dermatopathology (OR = 1.6, p = 0.02 for ASDP members; OR = 2.3, p = 0.02 for AAD members) were more likely to adhere to the 1992 NIH Consensus Conference nomenclature. CONCLUSIONS: Despite attempts to unify nomenclature for microscopically dysplastic nevi through the NIH Consensus Conference, wide variation in terminology persists.