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Localization-mapping of arteriolosclerotic ulcers of Martorell using two-dimensional computational rendering reveals a predominant location on the mid-lateral lower leg The arteriolosclerotic ulcer of Martorell (ASUM) represents an important differential diagnosis of leg ulcers. The overlay analysis revealed that ASUM ulcerations were mostly located on the lateral portion of the lower leg, with most ulcers extending into the segments "middle-ventrolateral" ("vL2") or "middle-dorsolateral" ("dL2"), with "dL2" being the most frequent one. [Extracted from the article]

Aim: Often, organ transplantation is the only option to improve the life expectancy and quality of life of patients with terminal organ failure. Despite improved donor and organ assessment, a residual risk remains for transmitting infection, tumor, or other disease from the donor to recipients. Analysis, reporting, and managing of donor-derived diseases through a vigilance and surveillance system (V&S) is mandatory in many countries. We report on suspected and proven/probable donor-derived infections (DDI) in Germany over a period of 8 years (2016-2023)., Methods: All incoming serious-adverse-event and serious-adverse-reaction (SAE/SAR) reports from 01.01.2016 to 31.12.2023 were evaluated for suspected DDI. Analysis of imputability followed the definition of the US Disease Transmission Advisory Committee (DTAC). Only probable and proven cases according to DTAC classification were defined as DDI., Results: During the study period, 9771 donors in Germany donated post-mortem organs to 27 919 recipients. In that period 612 SAE/SAR cases were reported, 377 (62%) involved infections. 41 cases were proven/probable DDI affecting 58 recipients (seven recipients died, 12%). Suspected infections were bacterial (182/377, 48%), fungal (135/377, 36%), viral (55/377, 15%), and parasitic (5/377, 1%). In case of bacterial DDI, no recipient died, but organ loss occurred in six recipients. In case of fungal or viral DDI, 19% (3/16) and 21% (3/14) of the recipients died, respectively., Conclusions: DDI are rare in solid organ transplantation (58/27 919, 0.21%), but when they occur, they are associated with high morbidity and mortality in affected recipients. Careful and detailed donor evaluation and a reliable V&S help improve recipient safety., (© 2024 Wiley Periodicals LLC.)

Background: Diagnostic work-up of leg ulcers is time- and cost-intensive. This study aimed at evaluating ulcer location as a diagnostic criterium and providing a diagnostic algorithm to facilitate differential diagnosis., Patients and Methods: The study consisted of 277 patients with lower leg ulcers. The following five groups were defined: Venous leg ulcer, arterial ulcers, mixed ulcer, arteriolosclerosis, and vasculitis. Using computational surface rendering, predilection sites of different ulcer types were evaluated. The results were integrated in a multinomial logistic regression model to calculate the likelihood of a specific diagnosis depending on location, age, bilateral involvement, and ulcer count. Additionally, neural network image analysis was performed., Results: The majority of venous ulcers extended to the medial malleolar region. Arterial ulcers were most frequently located on the dorsal aspect of the forefoot. Arteriolosclerotic ulcers were distinctly localized at the middle third of the lower leg. Vasculitic ulcers appeared to be randomly distributed and were markedly smaller, multilocular and bilateral. The multinomial logistic regression model showed an overall satisfactory performance with an estimated accuracy of 0.68 on unseen data., Conclusions: The presented algorithm based on ulcer location may serve as a basic tool to narrow down potential diagnoses and guide further diagnostic work-up., (© 2023 The Authors. Journal der Deutschen Dermatologischen Gesellschaft published by John Wiley & Sons Ltd on behalf of Deutsche Dermatologische Gesellschaft.)

The reporting of serious adverse events (SAE) and serious adverse reactions (SAR) is an essential part of an effective vigilance and surveillance system (V&S) in organ donation and transplantation. All SAE and SAR reported to the German organ procurement organization (DSO) between 2016 and 2022 were analyzed. In case of a possible transmission of a disease to one or more recipients, an assessment of imputability was done according to the grading system of the US Disease Transmission Advisory Committee (DTAC). 543 SAE and SAR cases were reported to the DSO and analyzed in detail. 53 of the 543 reports (9.8%) were proven or probable (P/P) transmissions of infectious diseases, malignancies or other diseases to 75 recipients. Infections were the most frequently reported P/P disease transmission occurrences (30/53, 57%). In case of disease transmission, the mortality of the recipients was high (17/75, 23%), especially when a malignant disease was transmitted (11/22, 50 %). Donor-Derived disease transmission is a rare event (53/8,519; 0.6 %), but when it occurs can lead to significant morbidity and mortality., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Böhler, Rahmel and Barreiros.)

Background: Endovenous procedures are commonly used for varicose vein treatment., Objectives: Types, functionality, and significance of endovenous devices., Methods: To describe the different endovenous devices, their mode of action, inherent risks and efficacy according to the literature., Results: Long-term data confirm that endovenous procedures are equally effective as open surgery. Postoperative pain is minimal and downtime shorter after catheter interventions., Conclusion: Catheter-based endovenous procedures increase the diversity of varicose vein treatment options. They are preferred by patients due to less pain and shorter downtime., (© 2023. The Author(s).)

The transplantation of organs from postmortem organ donors has been a lifesaving and quality-of-life-improving therapy for patients with irreversible organ failure for many years. In Germany, however, there has been an imbalance between the number of organs donated postmortem and the number of patients on the waiting list for years. The anesthesiological management of multiple organ harvesting (MOE) in postmortem organ donors is not an everyday challenge for various reasons: A lack of practical expertise due to the small number of MOE, even at university hospitals (usually < 20 per year), complex pathophysiological changes in the cardiovascular system and other organ functions of the postmortem organ donor and the lack of guidelines complicate anesthesiological management. This paper compiles the existing literature and reviews whether evidence-based recommendations can be derived for anesthesiologic management for MOE., Competing Interests: Die Autorinnen/Autoren geben an, dass kein Interessenkonflikt besteht., (Thieme. All rights reserved.)

Endovenous thermal and non-thermal therapeutic approaches have become standard of care for the treatment of venous insufficiency. However, comparative studies on its use in the population of venous leg ulcer patients are scarce. The present study aimed at a comparison of the efficacy of endovenous laser ablation (EVLA) and ultrasound-guided foam sclerotherapy (UGFS) for the treatment of venous leg ulcers (VUs). We retrospectively analyzed patient records of 68 patients with active VUs (C6 of the CEAP-classification), who underwent EVLA (n = 33) or UGFS (n = 35) between January 2001 and January 2021. In 68 patients, 97 venous segments (GSV: 43, SSV: 17, NSV: 37) were treated. Ulcer surface area at initial presentation did not differ significantly between both treatment groups (EVLA: 7.7 ± 10.7 vs. UGFS: 8.5 ± 16.3 cm 2 ; p = 0.73). No significant difference regarding patient characteristics was found, with the exception of age, as patients receiving UGFS treatment were significantly older (EVLA: 61 ± 17 vs. UGFS: 70 ± 14 years; p = 0.018). The rate of ulcer resolution was not significantly different between EVLA and UGFS groups (97.0% vs. 85.7%; p = 0.20). Also, the mean time to complete ulcer healing after endovenous intervention was comparable (EVLA: 59 ± 37 vs. UGFS: 63 ± 41 days; p = 0.68). However, the relapse rate was significantly higher for UGFS than for EVLA treated patients (31.4% vs. 3.0%; p = 0.002). Taken together, rates of ulcer resolution and ulcer healing time after endovenous intervention were comparable between both treatment modalities. Nevertheless, a significantly higher relapse rate was observed in UGFS treated patients., (© 2022 The Authors. Dermatologic Therapy published by Wiley Periodicals LLC.)

Background: Calciphylaxis and the arteriolosclerotic ulcer of Martorell (ASUM) represent two entities of cutaneous calcific arteriolopathies. Their differential diagnosis can be challenging, given similarities in their clinical and histological presentation. Calcification patterns have been proposed as a possible discriminative histological criterion, however, a systematic microstructural comparative analysis is lacking., Objectives: The study aimed at a systematic comparative microstructural analysis of the calcification patterns in calciphylaxis versus ASUM., Materials & Methods: Skin biopsies of patients with leg ulcers due to calciphylaxis (20) and ASUM (69) diagnosed at three European wound care centres (Vienna, Bern, Zurich) were included. The extent of calcification, arteriolar calcification pattern and presence of extra-arteriolar calcification were assessed., Results: All calciphylaxis and most ASUM patients (77%) presented with arteriolar calcification. Although the mean number of calcified vessels and the proportion of calcified area were significantly higher in calciphylaxis specimens (p = 0.003 and p = 0.0171), there was no significant difference in the pattern of arteriolar calcification (p = 0.177). Interestingly, extra-arteriolar calcification was detected in the majority of both calciphylaxis (93.3%) and ASUM samples (85.2%, p = 0.639). Notably, Alizarin Red S staining was superior to H&E for the detection of calcifications of both entities (p = 0.014 and p < 0.0001), and to von Kossa staining for ASUM samples (p = 0.0001). However, no differences could be observed between cases with uraemic and non-uraemic calciphylaxis or ulcerations located on the upper and lower leg., Conclusion: Our results indicate that extra-arteriolar calcification is not only present in calciphylaxis, but can also be detected in ASUM suggesting a lack of specificity for this finding. However, more specific calcification stains, such as Alizarin Red S, should be used in suspected cases, as calcifications may be overlooked using conventional H&E staining.

In recent years, our knowledge of congenital melanocytic nevi (CMN) has greatly expanded. This has led to a paradigm shift. The present article represents a commentary by an interdisciplinary group of physicians from German-speaking countries with extensive experience in long-term care and surgical treatment of children and adults with CMN (CMN surgery network, "Netzwerk Nävuschirurgie", NNC). The authors address aspects such as the indication for treatment as well as treatment planning and implementation under these new premises. Adequate counseling of parents on conservative and/or surgical management requires an interdisciplinary exchange among physicians and individualized planning of the intervention, which frequently involves a multi-stage procedure. Today, the long-term aesthetic outcome is at the center of any therapeutic endeavor, whereas melanoma prevention plays only a minor role. The premise of "removal at any cost" no longer holds. Potential treatment-related adverse effects (hospitalization, wound healing disorders, and others) must be carefully weighed against the prospects of a beneficial outcome. In this context, the use of dermabrasion in particular must be critically evaluated. At a meeting of the NNC in September 2018, its members agreed on a consensus-based position on dermabrasion, stating that the procedure frequently leads to impaired wound healing and cosmetically unfavorable or hypertrophic scarring. Moreover, dermabrasion is considered to be commonly associated with considerable repigmentation that usually occurs a number of years after the procedure. In addition, the NNC members saw no benefit in terms of melanoma prevention. In the future, physicians should therefore thoroughly caution about the potential risks and often limited cosmetic benefits of dermabrasion., (© 2019 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.)

Background: The intravenous anesthetic propofol is a gamma-aminobutyric acid A receptor agonist. Propofol promotes analgesia by depressing nociceptive transmission in peripheral neurons, antagonizing N-methyl-D-aspartate receptors, and activating gamma-aminobutyric acid A receptors in dorsal root ganglion receptor cells. Nevertheless, it remains unclear whether intraoperative propofol causes clinically meaningful postoperative analgesia. We therefore tested the hypothesis that patients anesthetized with sevoflurane require a greater quantity of postoperative opioids (from the end of surgery until the next postoperative morning) than those anesthetized with propofol., Methods: With Institutional Review Board and EudraCT Number approval (2009-011038-82) and patients' informed consent, ninety patients scheduled for open vein stripping were randomized to either sevoflurane or propofol anesthesia at the Medical University of Vienna General Hospital and the Danube Hospital, the largest regional hospital in Vienna. Pain was treated with bolus piritramide and patient-controlled morphine hydrochloride. The primary outcome was total opioid use from the end of surgery until the first postoperative morning. For the initial four postoperative hours and on the first postoperative morning, a blinded investigator recorded pain scores on an 11-point Likert verbal response scale., Results: The median [interquartile range] morphine sulfate equivalents were 9.8 [4-19] mg in the sevoflurane group and 10 [6-20] mg in the propofol group. Sevoflurane was not superior to propofol on postoperative opioid consumption, giving a ratio of means of 0.91 (95% interim-adjusted confidence interval [CI], 0.33 to 2.45; P = 0.74). Additionally, no difference in pain scores was found over time between the two groups, with a mean difference on an 11-point scale of 0.20 (95% interim-adjusted CI, -0.36 to 0.73; P = 0.31)., Conclusion: Intraoperative sevoflurane did not reduce postoperative analgesia. This finding is consistent with the results in most previous reports. This trial was registered at ClinicalTrials.gov: NCT00712517.

Background: The ascertainment of brain death (the irreversible, total loss of brain function) gives the physician the opportunity to limit or stop further treatment. Alternatively, if the brain-dead individual is an organ donor, the mode of treatment can be changed from patient-centered to donationcentered. Consensus-derived recommendations for the organ-protective treatment of brain-dead organ donors are not yet available in Germany., Methods: This review is based on pertinent publications retrieved by a selective search in PubMed, and on the authors' clinical experience., Results: Brain death causes major pathophysiological changes, including an increase in catecholamine levels and a sudden drop in the concentration of multiple hormones, among them antidiuretic hormone, cortisol, insulin, and triand tetraiodothyronine. These changes affect the function of all organ systems, as well as the hemodynamic state and the regulation of body temperature. The use of standardized donor management protocols might well increase the rate of transplanted organs per donor and improve the quality of the transplanted organs. In addition, the administration of methylprednisolone, desmopressin, and vasopressin could be a useful supplement to treatment in some cases. Randomized controlled trials have not yet demonstrated either improved organ function or prolonged survival of the transplant recipients., Conclusion: The evidence base for organ-protective intensive care is weak; most of the available evidence is on the level of expert opinion. There is good reason to believe, however, that the continuation of intensive care, in the sense of early donor management, can make organ transplantation more successful both by increasing the number of transplantable organs and by improving organ quality.

Venous disorders causing a permanent increase in venous pressure are by far the most frequent reason for ulcers of the lower extremity. With a prevalence of 1 % in the general population rising to 4 % in the elderly over 80 and its chronic character, 1 % of healthcare budgets of the western world are spent on treatment of venous ulcers. A thorough investigation of the underlying venous disorder is the prerequisite for a differenciated therapy. This should comprise elimination of venous reflux as well as local wound management. Chronic ulcers can successfully be treated by shave therapy and split skin grafting. Compression therapy is a basic measure not only in venous ulcer treatment but also in prevention of ulcer recurrence. Differential diagnosis which have to be considered are arterial ulcers, vasculitis and neoplasms.

The basis of surgery of great saphenous vein insufficiency is the concept of "privat circulation" coined by Trendelenburg in 1891. It was only logical that the dissection of the insuffcient vein or it's partial or complete resection could bring about healing. Over the years varicose vein stripping was modified to finally result in the highly effectiv concept of crossectomy and stripping. For decades this was the Goldstandard in surgery of varicose vein insufficiency. All the other minimally invasive therapeutic techniques which have been developed in the last decades had to compete with crossectomy and stripping. Thanks to progress in technical development the classic stripping procedure has been replaced by highly effectiv, minimally invasiv procedures, at least in the western industrialisied countries. For a minority of patients with specific anatomical pathologies as well as countries with limited health resources vein stripping remains a surgical standard procedure.

Background: Superficial reflux ablation and revascularization improve the long-term prognosis of venous and arterial leg ulcers but do not solve the problem of protracted healing of large chronic wounds. Skin grafting has been shown to successfully heal chronic leg ulcers., Objective: To identify risk factors for ulcer healing and recurrence after shave therapy and split-skin grafting in patients with large ulcers treated surgically for venous insufficiency., Methods: Single-center retrospective cohort study involving 72 chronic leg ulcers with a mean area of 77 ± 132 cm. Healing and recurrence rates were determined using life-table analysis. Clinical, demographic, and hemodynamic parameters were correlated with healing and recurrence using Cox regression analysis., Results: Sixty ulcers (83%) healed after a mean of 1.9 months and 15 ulcers (25%) recurred after a mean of 12.7 months. Healing was positively associated with compression treatment (hazard ratio [HR]: 2.02, 95% confidence interval [CI]: 1.14-3.59) and negatively associated with ulcer duration (HR: 0.99, 95% CI: 0.98-1.0). Male sex, ulcer duration, and deep venous reflux were identified as significant risk factors for ulcer recurrence (HR: 0.14, 95% CI: 0.03-0.73; HR: 1.02, 95% CI: 1.0-1.04; and HR: 5.4, 95% CI: 1.30-22.31)., Conclusion: Early surgical intervention improves healing and reduces the risk of ulcer recurrence.

In order to describe adequately the process of healing in the intermediate degrees, we investigated microcirculatory changes in the venous ulcers at well-defined stages of wound repair. We investigated dynamic changes in microcirculation during the healing process of venous ulcers. Ten venous ulcers were investigated in three consecutive clinical stages of wound healing: non granulation tissue (NGTA), GTA and scar. Subpapillary microcirculation was measured by laser Doppler perfusion (LDP) imaging and expressed using LDP values in arbitrary units. Nutritive perfusion by capillary microscopy and expressed as capillary density (CD) - the number of capillaries per square millimetre. Before the development of GTA the LDP was low (median 1·35; lower-upper quartiles 0·71-1·83) accompanied with zero CD in all but one patient who had a density of 1. With the first appearance of GTA in the same area, the LDP was improved (2·22; 1·12-2·33; P = 0·0024) when compared with NGTA, in combination with a significant increase in CD (1·75; 0-3; P = 0·0054). In scar, the LDP was similar to that in the NGTA (1·03; 0·77-1·83; P = 0·278), combined with the highest CD (5·75; 4·5-8) in comparison with the previous stages of the area (for both pairs, P < 0·0001). Venous ulcers are caused by poor nutritive and subpapillary perfusion. Subpapillary perfusion plays a major role in the formation of GTA. In a scar, the increased nutritive perfusion is sufficient to cover the blood supply and keep skin viable while subpapillary perfusion is low., (© 2012 The Authors. International Wound Journal © 2012 Blackwell Publishing Ltd and Medicalhelplines.com Inc.)

Background and Objective: One of the possible complications of endovenous laser ablation (EVLA) is thrombus progression into the common femoral vein or popliteal vein with the potential risk of pulmonary embolism or stroke. We set out to investigate the effect of laser energy applied under standardized treatment conditions on biomarkers of platelet and endothelial activation and on the hemostatic system., Methods: Twenty patients with incompetence of the great saphenous vein were included in this prospective study. Blood samples of the iliofemoral and anticubital veins were collected before, during, and after EVLA. Plasma levels of soluble (s) P-selectin, soluble thrombomodulin (sTM), prothrombin fragment F1+2 (F1+2), and d-dimer were measured. (s) P-selectin and sTM were analyzed as surrogate markers of endothelial and platelet activation. F1+2 and d-dimer were monitored to quantify the degree of surgical trauma., Results: Whereas there was no immediate rise of (s) P-selectin and sTM plasma concentrations in iliofemoral or anticubital blood, plasma levels of F1+2 and d-dimer increased significantly after EVLA., Conclusion: Pulsed mode laser ablation with an 810-nm fiber does not induce measurable platelet and endothelium activation in the iliofemoral or systemic blood. Furthermore, the immediate surgical trauma associated with EVLA appears to be modest. The authors have indicated no significant interest with commercial supporters., (© 2011 by the American Society for Dermatologic Surgery, Inc.)

We report a case of severe neuroleptic malignant syndrome developing in a 28-year-old female patient following deliberate self-poisoning with atypical antipsychotic drugs and serotonin reuptake inhibitors. Because of an increasing loss of consciousness she was rapidly transferred to an Intensive Care Unit. Following this, she became progressively febrile associated with rhabdomyolysis and life-threatening organ dysfunctions. Due to fast diagnosis and immediate therapy the patient was treated successfully. This article describes etiology, pathophysiology and symptoms of neuroleptic malignant syndrome. In addition therapeutic options are discussed., ((c) Georg Thieme Verlag Stuttgart-New York.)

According to one's subjective appraisal varicose veins will be perceived as more or less disfiguring. About 60% of the population suffer from only minor variants of varicose veins which bear no risk to health. A certain percentage will develop progressive disease with the venous ulcer representing the worst variant of chronic venous insufficiency. As long as there is no progressive disease, therapeutic modalities also account for a superior cosmetic appearance. Endoluminal procedures in particular meet with the claim for a superior treatment result with respect to cosmetic outcome without diminution of efficiency. In case of progressive venous insufficiency appearance is of inferior importance. About 70% of venous ulcers are due to primary varicose veins. Surgery of all accessible superficial refluxing veins is important to prevent recurrence. Compression treatment is highly effective in preventing chronic venous insufficiency and in venous ulcer treatment. About 60% of venous ulcers heal within a 24-week treatment period.

Background: Postoperative heparin prophylaxis after stripping of the long saphenous vein is a matter of controversial discussion, and practices vary by surgeon and country., Objective: The aim of this study was to assess the extent of hypercoagulability by continued monitoring of activation markers of coagulation and fibrinolysis for a period of 3 weeks after stripping of the long saphenous vein and concomitant phlebectomy., Methods: Including 21 patients, the following markers were measured preoperatively and on postoperative day 1, 2, 3, 7, 14, and 21: Activation products of coagulation: thrombin-antithrombin complex (TAT), thrombus precursor protein (TPP), and prothrombin-fragment F1+2 (F1+2), and markers of fibrinolysis: plasmin-alpha(2)-antiplasmin complexes (PAP), D-Dimer, tissue plasminogen activator (t-PA) antigen, and plasminogen activator inhibitor 1 (PAI-1) antigen., Results: TAT levels increased significantly until day 3 (p=.008) and normalized within 14 days. TPP levels increased significantly until day 7 (p=.02), decreasing to initial values within 21 days. PAP complexes increased significantly until day 2 (p=.02) reducing to baseline within the observation period. D-Dimer levels increased immediately after surgery (p<.001) until day 14 (p<.001) and returned to baseline until day 21., Conclusions: Significant hemostatic activation after varicose vein surgery was observed and persisted until 3 weeks postoperatively, indicating that heparin prophylaxis for 2 to 3 weeks is advisable for at-risk patients.

Paraneoplastic pemphigus (PNP) is an autoimmune mucocutaneous blistering disease associated with neoplasms, most frequently of the lymphoproliferative type. Rare PNP cases related to nonhematological solid tumors have been reported. The patient in this report presented with severe mucocutaneous involvement of PNP associated with hepatocellular carcinoma. Histopathology showed vacuolar interface dermatitis with keratinocyte necrosis and intraepidermal acantholysis. Direct immunofluorescence exhibited deposition of intercellular IgG and complement and granular complement at the dermoepidermal junction. Indirect immunofluorescence testing showed a typical intercellular staining on monkey esophagus and rat bladder epithelium. Immunoprecipitation showed characteristic target antigens of 250, 210, and 190 kDa molecular weights. This patient met all diagnostic criteria for paraneoplastic pemphigus and is, to our knowledge, the first report of a case associated with hepatocellular carcinoma.

Microcirculation of 15 ischemic and 15 venous ulcers, their scars, and intact surrounding skin were examined in order to demonstrate their similarities in the development and healing process. Subpapillary and nutritive perfusion of four areas were investigated by a laser Doppler perfusion imager (arbitrary units) and capillary microscopy (capillaries/mm2): one ulcer area without granulation tissue (no wound healing) and one with granulation tissue (ulcer healing); one skin area adjacent to the ulcer (1-8 mm) (scar developed from ulcer areas) and one distant (12-25 mm; intact skin). Areas without granulation tissue in ischemic and venous ulcers were similar, demonstrating a lack of capillaries (0.13 +/- 0.52; 0.93 +/- 2.09) and low laser Doppler flux (0.81 +/- 0.69; 1.47 +/- 1.17; P > 0.05 for each). In granulation tissue of both ulcers there was a tendency to a higher capillary density (0.67 +/- 1.40; 5.60 +/- 2.32; P < 0.0001 for venous ulcers) and a higher laser Doppler flux (1.15 +/- 0.67; 4.04 +/- 1.62; P < 0.0001 for venous ulcers) than in areas without granulation tissue. In scars of ischemic and venous ulcers capillary density (8.18 +/- 8.84; 13.60 +/- 5.45) and laser Doppler flux (1.72 +/- 1.00; 1.94 +/- 1.45) were similar (P > 0.05). In skin distant from ischemic ulcers very high capillary density (24.63 +/- 1.89) was associated with low laser Doppler flux (0.99 +/- 0.59); distant from venous ulcer capillary density was moderate (10.47 +/- 3.42) while laser Doppler flux was high (3.77 +/- 1.62; P < 0.0001 between both groups). The development and healing process of ischemic and venous ulcers is similar. Nutritive and subpapillary perfusion are involved in ulcer healing. In intact skin surrounding ischemic and venous ulcers, microcirculation is different due to the underlying pathophysiology., (Copyright 2001 Academic Press.)

Background/aims: The laser Doppler imager (LDI) is a device that maps the local distribution of the laser Doppler flux of tissues. To facilitate the interpretation of LDI measurements, we investigated their reproducibility., Methods: We measured 10 arterial ulcers, 10 venous ulcers and their adjacent skin by the use of a LDI. The means were calculated of individual coefficients of variation ± standard error of mean (meanCV ±SEM) of measurements on the same day, on 5 different days and at specific time points (0, 30, 60, 90 and 120 min) during the application of PGE, on 2 different days., Results: The meanCV ±SEM of measurements on the same day were 9.3±0.9% (ulcer), 9.8±0.9% (skin), and on 5 different days they were 21.9±1.9% (ulcer) and 28.6±2.4% (skin). Ulcer measurements on 5 different days were significantly more reproducible than skin measurements, if differences were calculated for all 20 patients or for the 10 patients with venous ulcers separately (P<0.05). During the application of PGE, for 120 min, meanCV ±SEM ranged from 19.2±4.0% to 26.9±5.0% (ulcer) and from 20.5±4.1% to 29.5+3.9% (skin). CV of skin measurements of all 20 patients at 0 min were significantly lower than those after 120 min of PGE(1) -application (P<0.05)., Conclusion: Our results show an excellent reproducibility of LDI measurements on a single day. The reproducibility of measurements on 5 different days or during the application of PGE1 over a period of 120 min was poorer. Because of the poorer reproducibility, more patients are needed to study long-term or drug effects.

Background: Elevation of activation markers of blood coagulation (thrombin-antithrombin complex [TAT], prothrombin fragment 1 + 2 [F1 + 2], D-Dimer] has not only been found in clinically overt thrombosis but also reflects a prethrombotic state., Objective: The purpose of our study was to evaluate whether varicose vein stripping, an operative procedure with an extremely low risk of postoperative thromboembolism, induces a prethrombotic state by activation of the hemostatic system., Methods: In a prospective, observational study we compared the baseline and postoperative values of TAT, F1 + 2, and D-Dimers in 15 patients undergoing varicose vein stripping and in 11 control patients undergoing surgical procedures associated with only minor soft tissue trauma., Results: A highly significant postoperative elevation of TAT (P < 0.001), F1 + 2 (P = 0.006), and D-Dimer (P < 0.001) was observed in the varicose vein stripping group. No significant postoperative change of the respective parameters was detected in the control group., Conclusion: We therefore conclude that varicose vein stripping induces a significant hemostatic system activation although postoperative thrombotic events are rare.

Isotretinoin (13-cis-retinoic acid) is commonly used for the treatment of acne vulgaris. We included 55 patients in this prospective study, and inspected them before, while and after therapy with isotretinoin regarding ocular side effects. Careful slit-lamp inspection, measurement of break-up-time and Schirmer-test and microbiological investigations of the conjunctival flora were performed. While staphylococcus aureus was cultured from the conjunctival sac before application of isotretinoin in 7.3%, this percentage increased to 61.8% during therapy. A pathological decrease of break-up-time was realized in 69.1% of the cases, the development of blepharitis in 40%. But in spite of the alteration of conjunctival flora, bacterial conjunctivitis developed in just 7.3% of the cases. However, only 34.5% of the patients showed symptoms of a conjunctivitis sicca, in spite of the impressive diminution of break-up-time in so many cases. All ocular side effects of isotretinoin were treatable and disappeared completely within 1 month after stopping therapy.

Insufficiency of epifascial veins promotes venous ulceration and increases thromboembolic risk in general surgery patients. Epifascial varicose vein stripping is therefore considered the most effective prophylactic procedure. Thromboembolic risk of patients undergoing this surgical procedure has not yet been prospectively evaluated but appears to be lower than in general surgery patients. The gold standard of preoperative assessment of varicose surgery patients is ascending pressure phlebography, but this technique is invasive, time consuming and costly. We prospectively investigated 100 consecutive varicose vein surgery patients for postoperative thrombosis. Ascending pressure phlebography (APP) and colour coded duplex sonography (CCDS) were performed before and 10 to 21 days after the stripping operation in 100 and 70 patients, respectively. APP revealed no postoperative deep vein thrombosis in all 100 limbs investigated (0 percent; 95 percent confidence interval: 0 to 2.95). With regard to epifascial vein reflux there was good agreement between APP and CCDS (quadratic weighted kappa: 0.76). In 67 out of 73 superficial veins investigated excellent agreement of diagnostic accuracy was found for both diagnostic procedures (91.78 percent; 95 percent confidence interval: 82.96 to 96.92). We conclude that thrombotic risk of varicose vein surgery is low in properly selected patients. CCDS provides a high degree of accuracy in diagnosis of reflux and regular vein morphology and should therefore replace APP; however, APP does remain essential in the preoperative workup of atypical anatomical variants.

Isotretinoin (13-cis-retinoic acid) is commonly used for the treatment of acne vulgaris. In the skin this substance causes an atrophy of sebaceous gland acini and a decrease in sebum production. Systemic treatment also alters meibomian gland function and structure. These alterations seem to be responsible for ocular complications (dryness of the eye, blepharitis, conjunctivitis) during therapy with isotretinoin. We inspected 30 patients before, during and after therapy with isotretinoin with regard to ocular side effects. Examination included careful slit-lamp inspection, measurement of break-up time (BUT) and the Schirmer test. Conjunctival smears were taken from every patient. The most frequently observed side-effects were decreased tear break up time and alterations of the lid margin. In addition, an enormous increase of Staphylococcus aureus in conjunctival flora was noticed. However, all ocular complications of systemic treatment with isotretinoin were reversible after cessation of therapy.

Objective: To evaluate the clinical efficacy and pharmacologic effects of dihydroergotamine and troxerutin on varicose veins., Methods: A double-blind, randomized, placebo-controlled parallel-group study was conducted in 53 patients with primary varicose veins. Patients received either a fixed combination of 3 mg dihydroergotamine and 300 mg troxerutin three times a day or placebo for 3 weeks. Symptomatic improvement was assessed by a self-assessment score, venocontracting effects on a varicose vein were quantified by the venous compliance technique (VCT), and changes in venous dysfunction were measured by digital photoplethysmography (DPPG)., Results: A significant reduction (p < 0.01) of subjective symptoms was observed in both groups. Results from VCT and DPPG after the therapy with dihydroergotamine and troxerutin or placebo were not significantly different (p > 0.05) from pretreatment values. Furthermore, no significant intergroup difference was observed when the before- and after-therapy differences of values of the self-assessment scores (VCT and DPPG) were compared., Conclusion: In our study, 3 weeks of treatment with a fixed drug combination of 3 mg dihydroergotamine plus 300 mg troxerutin three times a day had no measurable effect compared with placebo on any of the evaluated end points.

A prospective study was performed to compare the diagnostic potential of color-coded duplex sonography (CCDS) and that of ascending pressure phlebography (APP) in 61 patients before venous stripping. Varicosis of the long saphenous vein was correctly diagnosed and graded by CCDS in 87% of cases, and varicosis of the short saphenous vein in 97%. CCDS was inaccurate in 3 of 4 cases of recurrent varicosis of the long saphenous vein. Anterior femoral cutaneous varicosis (n = 3), mild postthrombotic syndrome (n = 1) and variant venous anatomy (n = 1) were not diagnosed on CCDS. One Baker cyst was diagnosed by CCDS. In the assessment of venous reflux CCDS seems to be superior to APP. Our results suggest that CCDS is a valuable diagnostic tool for routine imaging before venous stripping. However, patients with ambiguous or inconclusive CCDS results (eg. recurrent varicosis, venous variants) should be examined by APP.

Background: Various types of brushes are efficient for the removal of foreign material accidentally projected into the skin by explosive or abrasive trauma., Objective: To evaluate how different times between injury and treatment influenced esthetic results, we retrospectively evaluated 14 patients subjected to the brushing technique., Methods: Two groups were identified. Group I had been treated within 24 hours of injury. In group II debridement had been performed later., Results: Cosmetic results were strikingly better in group I., Conclusion: Our results demonstrate that debridement of traumatic tattoos should be carried out as soon as possible to achieve favorable cosmetic results.

Responsiveness of superficial hand veins to local infusions of noradrenaline was compared in patients with primary varicose veins and in healthy volunteers by use of the dorsal hand vein technique. Patients with varicose veins required significantly higher doses of noradrenaline for half-maximal venoconstriction than the dose required by control subjects (geometric mean, 11.6 ng/min in patients compared with 4.8 ng/min in control subjects; p = 0.006). Noradrenaline responsiveness in varicose veins was not significantly different from hand vein responsiveness in the same patients. Our findings indicate a constitutional decrease in venous alpha-adrenergic receptor responsiveness in patients with varicosities. Dilation of varicose veins does not further affect noradrenaline-induced venoconstriction.

We report a cutaneous infection by Aspergillus flavus in a tetraplegic but otherwise healthy young man. He presented with multiple erythematous to violaceous indurated papules and plaques which had progressed to central ulcers or black eschars. Lesional scrapings, biopsies and cultures demonstrated a fungus, Aspergillus flavus, as the aetiological agent. As the patient had to leave for his home country before diagnosis had been established, we cannot report on the results of therapy in this case.