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1.
J Plast Reconstr Aesthet Surg ; 87: 430-439, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37944453

RESUMEN

Current literature does not definitely demonstrate the superiority of any particular scaphoid reconstruction method. The primary goal of this retrospective single center study was to evaluate the influence of reconstruction techniques and other factors on the union rate after reconstruction of scaphoid nonunions. In the study, 370 patients with nonunions classified as stable (Mayo 1) or unstable (Mayo 2) depending on carpal alignment were included. Minimal radiological follow-up was 3 months. Bone healing after scaphoid reconstruction was evaluated using computer tomography scans in 294 and radiograms in 76 patients. Univariate and multivariate logistic regressions were applied in the analysis. Eight statistically significant factors that influenced the union rate were fixation method, type of previous operations, number of all operations, number of reconstructions, smoking, postoperative pathological lateral intrascaphoid angle (LISA>45°), avascular necrosis (AVN), and stability of nonunion. Smoking and postoperative LISA>45° significantly reduced the probability of bone fusion by approximately 4.4 and 9.5 times, respectively. Patients with reduced vascularity in the nonunion site had a 5.2 times lower chance of bone fusion. Our multivariate logistic regression model can explain 32% of failures after scaphoid reconstruction, including postoperative LISA>45°, patients' present record of smoking, and reduced vascularity in the nonunion site. However, bone graft type does not impact the union rate in general; however, in case of AVN, the tendency toward higher union rates was observed for medial femoral condyle free flaps when compared to other types of graft (non-vascularized and pedicled bone grafts considered as one group, p = 0.09).


Asunto(s)
Fracturas no Consolidadas , Osteonecrosis , Hueso Escafoides , Humanos , Estudios Retrospectivos , Fracturas no Consolidadas/diagnóstico por imagen , Fracturas no Consolidadas/etiología , Fracturas no Consolidadas/cirugía , Hueso Escafoides/diagnóstico por imagen , Hueso Escafoides/cirugía , Osteonecrosis/diagnóstico por imagen , Osteonecrosis/etiología , Osteonecrosis/cirugía , Trasplante Óseo/métodos , Fumar/efectos adversos
2.
Nervenarzt ; 94(12): 1106-1115, 2023 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-37857991

RESUMEN

BACKGROUND: Painful neuromas that often develop after peripheral nerve injury require adequate diagnosis and treatment because of the suffering they cause. The scientific basis for the development of painful neuromas has not yet been sufficiently investigated. In addition to conservative procedures, a larger number of surgical techniques are available for treatment of painful neuromas. OBJECTIVE: A review of the basic principles, diagnostic and treatment options for painful neuromas. MATERIAL AND METHODS: Presentation of the scientific basis regarding the development of painful neuromas. Illustration and discussion of the most common diagnostic and treatment procedures. RESULTS: The scientific basis regarding the development of painful neuromas after peripheral nerve injury has not yet been adequately developed. In order to be able to make a correct diagnosis, the use of standardized diagnostic criteria and adequate imaging techniques are recommended. In the sense of a paradigm shift, the use of the formerly neuroma-bearing nerve for reinnervation of target organs is to be preferred over mere burying in adjacent tissue. CONCLUSION: In addition to standardized diagnostics the management of painful neuromas often requires a surgical intervention after all conservative therapeutic measures have been exhausted. As an alternative to restoring the continuity of the injured nerve, targeted reinnervation of electively denervated target organs by the formerly neuroma-bearing nerve is preferable over other techniques.


Asunto(s)
Neuroma , Traumatismos de los Nervios Periféricos , Humanos , Traumatismos de los Nervios Periféricos/complicaciones , Dolor/etiología , Neuroma/diagnóstico , Neuroma/cirugía , Neuroma/etiología
3.
Cancers (Basel) ; 15(13)2023 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-37444455

RESUMEN

BACKGROUND: Extralevator abdominoperineal excision (ELAPE) is a relatively new surgical technique for low rectal cancers, enabling a more radical approach than conventional abdominoperineal excision (APE) with a potentially better oncological outcome. To date, no standard exists for reconstruction after extended or extralevator approaches of abdominoperineal (ELAPE) resection for lower gastrointestinal cancer or inflammatory tumors. In the recent literature, techniques with myocutaneous flaps, such as the VY gluteal flap, the pedicled gracilis flap, or the pedicled rectus abdominis flaps (VRAM) are primarily described. We propose a tailored concept with the use of bilateral adipo-fasciocutaneous inferior gluteal artery perforator (IGAP) advancement flaps in VY fashion after ELAPE surgery procedures. This retrospective cohort study analyzes the feasibility of this concept and is, to our knowledge, one of the largest published series of IGAP flaps in the context of primary closure after ELAPE procedures. METHODS: In a retrospective cohort analysis, we evaluated all the consecutive patients with rectal resections from Jan 2017 to Sep 2021. All the patients with abdominoperineal resection were included in the study evaluation. The primary endpoint of the study was the proportion of plastic reconstruction and inpatient discharge. RESULTS: Out of a total of 560 patients with rectal resections, 101 consecutive patients with ELAPE met the inclusion criteria and were included in the study evaluation. The primary direct defect closure was performed in 72 patients (71.3%). In 29 patients (28.7%), the defect was closed with primary unilateral or bilateral IGAP flaps in VY fashion. The patients' mean age was 59.4 years with a range of 25-85 years. In 84 patients, the indication of the operation was lower rectal cancer or anal cancer recurrence, and non-oncological resections were performed in 17 patients. Surgery was performed in a minimally invasive abdominal approach in combination with open perineal extralevatoric abdominoperineal resection (ELAPE) and immediate IGAP flap reconstruction. The rate of perineal early complications after plastic reconstruction was 19.0%, which needed local revision due to local infection. All these interventions were conducted under general anesthesia (Clavien-Dindo IIIb). The mean length of the hospital stay was 14.4 days after ELAPE, ranging from 3 to 53 days. CONCLUSIONS: Since radical resection with a broad margin is the standard choice in primary, sphincter-infiltrating rectal cancer and recurrent anal cancer surgery in combination with ELAPE, the choice technique for pelvic floor reconstruction is under debate and there is no consensus. Using IGAP flaps is a reliable, technical, easy, and safe option, especially in wider defects on the pelvic floor with minimal donor site morbidity and an acceptable complication (no flap necrosis) rate. The data for hernia incidence in the long term are not known.

4.
Handchir Mikrochir Plast Chir ; 55(2): 95-105, 2023 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-36780931

RESUMEN

BACKGROUND: Research is an integral part of academic medicine. In plastic surgery, it sets the course for innovations in the specialty. The purpose of this study is to present the research performance of plastic surgeons in Germany for the period 2021/2022 and to compare it with previous periods. MATERIALS AND METHODS: The directors of plastic surgical academic institutions reported all requested/approved and rejected research applications to public, non-public and industrial funding organizations. Data was gathered within an established online database. In addition, the DFG´s public database GEPRIS was screened for plastic surgical research grants. Data was also collected regarding research infrastructure and organization at the participating centers. RESULTS: 105 applications were reported to 54 different funding agencies from 20 plastic surgery centers. 37 funding applications were submitted to the major public funding agencies DFG, BMBF, BMWi, BMG, BMVg, G-BA and EU. Of these, 59,5% (22/37) were DFG, 13,5% (5/37) each BMBF and EU, 5,4% (2/37) BMWi, and 2,7% (1/37) each BMG, BMVg, and G-BA applications. The average funding volume of these proposals was 401,515 euros. Approved DFG proposals were most frequently assigned to the review board 205-27 Orthopedics, Trauma Surgery, Reconstructive Surgery (n=10/16, 62,5%). Over time, the research registry shows an increase in the number of proposals in general and those granted. 70,0% (14/20) of participating sites had their own experimental research laboratory, while only 40,0% (8/20) had their own clinical trial center. CONCLUSION: The 2021/2022 Research Funding Report once again highlights the impressive research accomplishments of the plastic surgery community.


Asunto(s)
Procedimientos de Cirugía Plástica , Cirujanos , Cirugía Plástica , Humanos , Sistema de Registros , Estética
5.
J Plast Reconstr Aesthet Surg ; 75(9): 3293-3303, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35725956

RESUMEN

Conventional X-ray imaging is usually the first diagnostic assessment after clinical examination in case of suspected scapholunate interosseous ligament (SLIL) injury. Nevertheless, there is no consensus on the norms of the scapholunate distance (SLD) or carpal angles. Therefore, we aimed to determine the utility of static and dynamic radiographs in the diagnostic of an SLIL injury in comparison with the reference standard arthroscopy. We retrospectively analyzed the preoperative X-ray series and surgical records of arthroscopies of 414 patients. Radiological assessment included conventional static X-rays in the posteroanterior (PA) projection, clenched fist views in ulnar and radial deviations, in which the SLD at the midportion of the scapholunate (SL) joint was measured. The scapholunate angle (SLA) and radiolunate angle (RLA) were measured on lateral wrist radiographs. Receiver operating characteristic (ROC) curves were created to determine possible cut-off points of the radiological indices for the diagnosis of SLIL injury. Further, a logistic regression with the parameters having the highest area under the curve (AUC) was calculated. We found that SLD in ulnar inclination (AUC= 0.774), SLD in PA projection (AUC = 0.748), and SLA (AUC = 0.737) had the highest diagnostic value. The AUC of the combination of these three parameters was 0.822 for all patients with any SLIL lesion and 0.850 for patients with SLIL lesions of 3-4 Geissler grade. Further investigation of SLIL pathology would be appropriate in the case of SLD in ulnar inclination of 2.7 mm, SLD in PA projection of 1.9 mm and SLA of 63°.


Asunto(s)
Hueso Semilunar , Hueso Escafoides , Traumatismos de la Muñeca , Artroscopía , Humanos , Ligamentos Articulares/diagnóstico por imagen , Hueso Semilunar/diagnóstico por imagen , Estudios Retrospectivos , Hueso Escafoides/diagnóstico por imagen , Traumatismos de la Muñeca/diagnóstico por imagen , Traumatismos de la Muñeca/cirugía , Articulación de la Muñeca/diagnóstico por imagen , Rayos X
6.
Hand Surg Rehabil ; 41(3): 384-390, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35288352

RESUMEN

Considering the rising prevalence of antimicrobial resistance and the lack of recommendations on antibiotic treatment, the present study evaluated the necessity of local and systemic antibiotic therapy in addition to surgical debridement in superficial hand infections. Superficial hand infections were defined as not involving tendons, joints or bone. Data were analyzed for 180 patients, assigned to three study groups according to postoperative antimicrobial treatment. Patients in group I were treated with both systemic and local antibiotics; in group II antimicrobial therapy was limited to local antibiotics in the form of subcutaneous gentamicin bead chains; group III did not receive any antibiotic treatment after surgical debridement. Patients were followed up at two weeks and at three months. Immobilization time and length of stay were longer in group I, but there were no significant differences between the groups in terms of revision rate or recovery of hand function assessed by measurement of finger mobility, grip strength and the Disabilities of the Arm, Shoulder and Hand score at follow-up. Antibiotic treatment of hand infections should be considered carefully and reserved for specific indications: e.g., severe infections and selected patients such as those with diabetes or immunocompromising diseases.


Asunto(s)
Antibacterianos , Gentamicinas , Desbridamiento , Gentamicinas/uso terapéutico , Mano/cirugía , Humanos , Estudios Retrospectivos
7.
Ann Burns Fire Disasters ; 35(4): 320-323, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38680628

RESUMEN

The danger of fire and electric current is underestimated by many people. The associated severe burn injuries are mainly treated in special burn centers because they are challenging and tend to have a strong impact on health-related quality of life. This case report describes a 20-year-old female severe burn victim who suffered second- to third-degree burns to approximately 80% of her total body surface. During in-patient care, we focused on inhalation trauma and anti-infective therapy, surgical management, physiotherapeutic and occupational therapy, in-patient rehabilitation measures, compression therapy and accompanying psychological co-treatment. This interdisciplinary treatment focused on restoring the best possible quality of life for burn victims.


Les dangers du feu et de l'électricité sont largement sous-estimés par la population. Les brûlures graves relèvent des centres spécialisés en raison de la complexité de leur prise en charge et de leur impact majeur sur la qualité de vie. Nous rapportons le cas d'une femme de 20 ans brûlée sur 80% de SCT (2ème et 3ème degrés). La prise en charge initiale a associé le traitement de l'inhalation de fumées, le traitement antiinfectieux, la chirurgie, la rééducation, la pressothérapie et l'accompagnement psychologique, dans le but d'optimiser la qualité de la vie à venir.

8.
Handchir Mikrochir Plast Chir ; 53(2): 110-118, 2021 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-32977347

RESUMEN

BACKGROUND: Since 2015/16 the DGPRÄC collects, evaluates and publishes the research activities of academic sections, departments and clinics for plastic surgery at university hospitals in Germany, in order to raise the awareness of plastic surgical research performance. MATERIALS AND METHODS: The directors of plastic surgical academic institutions were contacted via the DGPRÄC and asked to report any requested/approved and rejected research applications to public, non-public and industrial funding organizations. Data was collected in our previously established online database: https://docs.google.com/forms/d/e/1FAIpQLSe6F5xmTyw-k7VKJx_2jkPA4LBXsA0sgBGMrC3rx_4bHj6uzQ/viewform?usp=sf_link. In addition, applications were identified via the DFG's public database GEPRIS. RESULTS: A total of 41 funding applications to the public funding institutes DFG, BMBF, BMWi, BMG and EU were identified. 75.6 % (31/41) of the applications had already been approved at the time of data collection, of which 77.4 % (24/31) were DFG, 9.7 % (3/31) were BMWi, 6.5 % (2/31) were EU and 3.2 % (1/31) were BMBF or BMG applications. The average funding amounted to 358 301 Euro. In 50.0 % (12/24) of the cases, the approved DFG proposals were assigned to the subject review board 205-27 Orthopedics, Trauma Surgery, Reconstructive Surgery. CONCLUSION: The continuous publication of plastic surgical research funding reports submitted by the convention of university plastic surgeons of the DGPRÄC portraits the excellent, collaborative research activity in the field of plastic surgery.


Asunto(s)
Procedimientos de Cirugía Plástica , Cirujanos , Cirugía Plástica , Estética , Alemania , Humanos , Sistema de Registros
9.
Clin Hemorheol Microcirc ; 74(2): 155-166, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31322552

RESUMEN

BACKGROUND: Mechanism of remote ischemic conditioning (RIC) remain not fully understood yet. Thus, a clinical trial was performed to assess the neuronal influence on its signal induction. METHODS: RIC was conducted on 45 patients who were randomized into 3 groups. Group A and B underwent brachial plexus anesthesia while RIC was performed on the blocked (A) and non-blocked side (B), respectively. In group C, RIC was conducted before regional anesthesia, thus serving as control group. All measurements were taken contralateral to RIC. The relative increase of microcirculatory parameters compared to baseline was evaluated and compared between the groups. RESULTS: Superficial blood flow (sBF) significantly increased in group A and C but values were higher among group C. Compared to group A, group C showed a significant increase of sBF during the initial 5 minutes of reperfusion (1.75; CI 1.139 - 2.361 vs. 0.97, CI 0.864 - 1.076, p < 0.05). Deep blood flow, tissue oxygen saturation and relative hemoglobin content were marginally influenced by RIC irrespectively of the presence of regional anesthesia. CONCLUSION: Despite regional anesthesia a significant RIC stimulus can be induced although its microcirculatory response is attenuated compared to control. Hence, RIC induction does not merely depend on neuronal signaling.


Asunto(s)
Anestesia/métodos , Extremidades/patología , Precondicionamiento Isquémico/métodos , Microcirculación/fisiología , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
10.
Chirurg ; 90(3): 211-222, 2019 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-30074057

RESUMEN

BACKGROUND AND OBJECTIVES: Plastic surgery includes a broad range of activities; however, there are no studies available in Germany which evaluated the specific role plastic surgeons play in providing patient care. The aim of the project was thus to analyze the public and professional perception of plastic surgery in Germany and to what degree the range of activities is appropriately represented. MATERIAL AND METHODS: An anonymous survey inquiring about demographic data and specific knowledge regarding plastic surgery procedures was conducted in various regions in German. Furthermore, factors that potentially influence the state of knowledge and personal perception were collated. The questionnaire was distributed among healthcare professionals and patients in plastic surgery. The statistical evaluation was performed using SPSS software. RESULTS: A total of 2100 people participated in the nationwide survey. While classical aesthetic operations were mostly assigned to plastic surgery, there was no uniformity as to whether other indications, such as reconstructive interventions and hand surgery were assigned to this specialty or not. In this context various factors could be elucidated, such as the place of residence, education and age of the survey participants and the respective knowledge, which influence the perception. CONCLUSION: Plastic surgery in Germany classically consists of the four pillars of general reconstruction, hand surgery, burn management and aesthetic procedures; however, the results of this survey revealed that plastic surgery in Germany is predominantly understood as burn management and aesthetic surgery. As a multidisciplinary specialty, plastic surgery could apparently benefit from a more positive lobby and from a better portrayal of its scope in the media and general public.


Asunto(s)
Procedimientos de Cirugía Plástica , Opinión Pública , Cirugía Plástica , Estética , Alemania , Humanos , Encuestas y Cuestionarios
11.
Handchir Mikrochir Plast Chir ; 50(6): 414-421, 2018 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-30536256

RESUMEN

INTRODUCTION: This report serves to publicize the research of academic institutions for Plastic Surgery within our society DGPRÄC in 2017/2018 and sequels the funding report of 2015/2016. Applications to public, non-public, or industrial funding organizations were evaluated. At the same time, this paper analyses the number of approved DFG applications in Plastic, Thoracic and Vascular Surgery in the GEPRIS system. Contrary to these specialties, Plastic Surgery is not classified as an independent speciality in the subject structure of the DFG review board which results in a lack of transparency concerning Plastic Surgery research work. MATERIALS AND METHODS: Our previously established online database (https://docs.google.com/forms/d/1OaSnHyKTysawiI1ie7kfUxDf7nJP_RiTUJTsnb7Mq_E/edit) for reporting requested/ approved and rejected research applications to public, non-public and industrial funding organizations was continued and evaluated together with applications found in the DFG's public database GEPRIS. RESULTS: Compared to the previous year's report, the number of approved applications from public research organizations (DFG, BMBF, BMWi, EU) was increased from 23 to 27. We identified 19 approved DFG applications from Plastic Surgery, as compared to 9 and 8 applications by Thoracic and Vascular Surgery, respectively. SUMMARY: Taken together, this data emphasizes that our research is at least equal to that of other newly established surgical specialties within the framework of the DFG. Accordingly, we hope to provide further arguments for an adaptation of the DFG review boards subject structure to include Plastic Surgery as an independent specialty as it is for Vascular Surgery and Thoracic Surgery.


Asunto(s)
Procedimientos de Cirugía Plástica , Sistema de Registros , Cirujanos , Cirugía Plástica , Estética
12.
J Tissue Viability ; 27(4): 267-273, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30121158

RESUMEN

BACKGROUND: Negative Pressure Wound Therapy (NPWT) is widely used across different kinds of surgical disciplines. A controversial debate was raised by diverging results from studies that were conducted to examine the impact of NPWT on local perfusion. Thus, there is a lack of evidence for one important underlying factors that influences the physiology of wound healing under an applied NPWT-dressing. OBJECTIVE: To investigate the immediate local perfusion changes due to an applied intermittent NPWT protocol. MATERIAL AND METHODS: A NPWT dressing was applied to the antero-lateral thigh of seven healthy volunteers with two probes of both pressure and microcirculatory measuring devices. One of each probe was placed under the NPWT dressing, the other one in close proximity next to it. A protocol consisting of two cycles of 10 min of -125 mmHg pressure, followed by 10 min of 0 mmHg pressure was applied. Measurements of local pressure to the underlying tissue, as well as microcirculatory changes were performed continuously. RESULTS: Applied vacuum caused compressional forces (27.33 mmHg, p < 0.05) towards the underlying tissue. Blood Flow was increased after both suction periods (+52.5%, +108.7%; p < 0.05) and continued increasing until the end of measurements (+145.3%). This was accompanied by significant increase in Oxygen Saturation (+21.6%; p < 0.05) and Relative Hemoglobin Content (+16.7%). Red Blood Cell Velocity was found to be increased without statistical significance. Next to the dressing, changes were also significant but less pronounced. CONCLUSION: Intermittent NPWT improves local microcirculation with consecutive enhancement of oxygen supply.


Asunto(s)
Microcirculación/fisiología , Terapia de Presión Negativa para Heridas/normas , Flujo Sanguíneo Regional/fisiología , Factores de Tiempo , Adulto , Índice de Masa Corporal , Femenino , Voluntarios Sanos , Humanos , Masculino , Terapia de Presión Negativa para Heridas/instrumentación , Terapia de Presión Negativa para Heridas/métodos
13.
J Reconstr Microsurg ; 34(5): 376-382, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29625504

RESUMEN

BACKGROUND: The omental flap is a reliable flap for the coverage of sternal defects. However, little is known about the predictors of mortality and the long-term outcome in such patients. METHODS: We, therefore, performed a retrospective study from 2002 to 2013, including all patients who underwent sternal reconstruction with the omental flap. RESULTS: A total of 50 patients were identified and mean follow-up was 3.8 years. Patient data was collected from the charts and 14 patients were available for telephone interviews. The majority of patients suffered from deep sternal wound infections. There was no complete flap loss and an overall success rate was 96%. In-hospital mortality was 14% and overall survival over follow-up was 50%. Significant predictors of mortality were age > 65, American Society of Anesthesiologists' status, defect size, prolonged ventilation, and the need for tracheotomy. Postoperative quality of life was reduced compared with other cohorts, especially with regard to bodily function. Pain was also a major problem for most patients along with herniation. CONCLUSION: The omental flap is a safe option even in patients with severe comorbidities. However, based on the data in this study, we would recommend the omental flap as a reserve option rather than first-line treatment for sternal defects.


Asunto(s)
Epiplón/trasplante , Procedimientos de Cirugía Plástica/métodos , Calidad de Vida , Esternotomía/efectos adversos , Colgajos Quirúrgicos/trasplante , Infección de la Herida Quirúrgica/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Epiplón/cirugía , Reoperación/métodos , Estudios Retrospectivos , Medición de Riesgo , Esternotomía/métodos , Infección de la Herida Quirúrgica/mortalidad , Infección de la Herida Quirúrgica/fisiopatología , Tasa de Supervivencia , Resultado del Tratamiento
14.
Zentralbl Chir ; 143(1): 42-49, 2018 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-27135869

RESUMEN

Tissue perfusion is pivotal to wound healing and tissue regeneration after surgery. Ischemia and reperfusion lead to inflammatory reactions with consecutive tissue damage and necrosis. Multiple conditioning techniques have been described to protect tissue from those damaging mechanisms in the perioperative period. However, most of these fail to meet the requirements of a good therapeutic effect, time and cost efficiency, non-invasiveness and applicability without the need for additional devices or drugs. Remote ischemic conditioning (RIC) is a technique to provide endogenous tissue protection, which fully meets those requirements. Repeated, short cycles of ischemia/reperfusion applied to a circumscribed vascular territory lead to the activation of endogenous signal pathways resulting in increased tolerance to hypoperfusion and limiting the damage caused by reperfusion, even in tissues located far away from the conditioned area. The non-invasive application of the conditioning stimulus requires no more than a pressure cuff, which is placed on the upper arm and is repeatedly inflated to suprasystolic pressures. Different concepts of remote ischemic pre-, peri- and postconditioning enable the usage in both elective and emergency surgical interventions. Based on encouraging experimental studies, the application of RIC has increased in the clinical setting. In addition to studies addressing cardio-, nephro- or neuroprotection there are some initial findings supporting a potential beneficial application in reconstructive microsurgery. This article aims to give an overview of the development, concepts and mechanisms of RIC with a focus on its clinical application in the field of surgery.


Asunto(s)
Precondicionamiento Isquémico/métodos , Tratamientos Conservadores del Órgano/métodos , Órganos en Riesgo , Procedimientos Quirúrgicos Operativos/métodos , Animales , Determinación de la Presión Sanguínea/instrumentación , Humanos , Complicaciones Intraoperatorias/fisiopatología , Complicaciones Intraoperatorias/prevención & control , Isquemia/fisiopatología , Isquemia/prevención & control , Flujo Sanguíneo Regional/fisiología , Cicatrización de Heridas/fisiología
16.
Clin Hemorheol Microcirc ; 66(3): 239-248, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28482626

RESUMEN

BACKGROUND: Surgical flaps have become reliable tools in the microsurgical armamentarium, but are still faced with tissue loss due to impaired perfusion which can lead to complete flap failure. Remote Ischemic Conditioning (RIC) has been demonstrated to be an effective way to improve microcirculation in surgical flaps in humans. However, little is known about the optimal amount and length of RIC cycles. OBJECTIVE: Determination of a superior protocol for RIC of cutaneous microcirculation in humans. METHODS: 60 healthy volunteers were randomized into different groups and received a RIC protocol, consisting of three cycles of either 1 second, 1, 5, or 10 minutes of ischemia followed by ten minutes of reperfusion. RIC was applied with a inflatable tourniquet placed on the upper arm. Changes in microcirculation were assessed via combined laser doppler/spectroscopy (O2C device) at the anterior lateral thigh. Relative increase at the end of conditioning vs. baseline measurements was calculated and compared between groups. RESULTS: RIC caused significant changes in cutaneous microcirculation (p < 0.05) which were more pronounced in groups with longer ischemia intervals. The ten minutes group was significantly superior. CONCLUSION: A conditioning protocol containing three cycles of ten minutes of ischemia is superior to protocols with shorter ischemia intervals for RIC of cutaneous microcirculation.


Asunto(s)
Isquemia/terapia , Microcirculación/fisiología , Colgajos Quirúrgicos/irrigación sanguínea , Adulto , Femenino , Voluntarios Sanos , Humanos , Masculino , Factores de Tiempo , Adulto Joven
17.
J Wound Care ; 26(4): 184-187, 2017 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-28379100

RESUMEN

OBJECTIVE: The influence of proteins on the efficacy of antiseptic solutions has been rarely investigated even though exudate can contain high levels of protien. The aim of this study was to analyse the antibacterial efficacy of commonly used solutions in the presence of albumin protein. METHOD: Using Staphylococcus aureus in a standardised quantitative suspension assay, the antibacterial effects of poly (1-(2-oxo-1-pyrrolidinyl) ethylene)-iodine (PVP-I) and octenidin-dihydrochloride/phenoxyethanol (OCT/PE) were analysed in the presence of 0-3% bovine serum albumin (BSA). These were compared with previous results obtained with polyhexamethylene biguanide hydrochloride (PHMB). RESULTS: Presence of albumin caused a significant (p<0.001) decrease in antibacterial effect in the analysed solutions. The concentrations of albumin that provoked highly significant decreases in the bacterial reduction factors of the study agents were: 0.01875 % for PVP-I, followed by 0.75 % for OCT/PE. After addition of 3 % albumin, adequate antimicrobial effects were ensured for titrations to 5 % PVP-I and 8 % OCT/PE. As we could show before, it is not possible to titrate PHMB in order to assure adequate potency. CONCLUSION: This study demonstrates that albumin induces a significant decrease of the antibacterial potency of the analysed solutions.


Asunto(s)
Antiinfecciosos Locales/farmacología , Albúmina Sérica Bovina/farmacología , Staphylococcus aureus/efectos de los fármacos , Biguanidas/farmacología , Glicoles de Etileno/farmacología , Exudados y Transudados , Humanos , Iminas , Pruebas de Sensibilidad Microbiana , Povidona Yodada/farmacología , Piridinas/farmacología , Infecciones Estafilocócicas/tratamiento farmacológico , Infección de Heridas/tratamiento farmacológico
18.
Chirurg ; 88(4): 353-366, 2017 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-28289755

RESUMEN

Necrotizing fasciitis is a potentially fatal soft tissue infection that may affect the upper and lower extremities, scrotum, perineum and abdominal wall. Typically, the infection demonstrates rapid spreading along the fascial planes leading to sepsis with mortality rates of 15-46%. Without adequate treatment, the mortality rate increases to close to 100%. There are four groups of pathogens that can lead to necrotizing fasciitis, namely beta-hemolytic group A streptococci, mixed infections with obligate and facultative anaerobes, clostridium species and fungal infections. Clinical signs may include erythema, edema and pain out of proportion in the early stages and soft tissue necrosis with bullae during the subsequent course. In some cases, only a deterioration of the general condition is evident and the aforementioned clinical symptoms are initially missing. The decision for treatment is based on the clinical diagnosis and surgical debridement is the cornerstone of treatment, accompanied by broad spectrum i.v. antibiotic treatment, e. g. with penicillin, ciprofloxacin and clindamycin.


Asunto(s)
Brazo/cirugía , Fascitis Necrotizante/cirugía , Pierna/cirugía , Amputación Quirúrgica , Antibacterianos/uso terapéutico , Terapia Combinada , Desbridamiento , Diagnóstico Diferencial , Fascitis Necrotizante/diagnóstico , Fascitis Necrotizante/etiología , Fascitis Necrotizante/mortalidad , Humanos , Procedimientos de Cirugía Plástica , Reoperación , Trasplante de Piel/métodos , Tasa de Supervivencia
19.
Nutr Cancer ; 69(2): 340-351, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28045549

RESUMEN

BACKGROUND: The cytostatic effects of the polyphenol curcumin and Viscum album extract (VAE) were assessed in soft-tissue sarcoma (STS) cells. METHODS: Eight human STS cell lines were used: fibrosarcoma (HT1080), liposarcoma (SW872, T778, MLS-402), synovial sarcoma (SW982, SYO1, 1273), and malignant fibrous histiocytoma (U2197). Primary human fibroblasts served as control cells. Cell proliferation, viability, and cell index (CI) were analyzed by BrdU assay, MTT assay, and real-time cell analysis (RTCA). RESULTS: As indicated by BrdU and MTT, curcumin significantly decreased the cell proliferation of five cell lines (HT1080, SW872, SYO1, 1273, and U2197) and the viability of two cell lines (SW872 and SW982). VAE led to significant decreases of proliferation in eight cell lines (HT1080, SW872, T778, MLS-402, SW982, SYO1, 1293, and U2197) and reduced viability in seven STS lines (HT1080, SW872, T778, MLS-402, SW982, SYO1, and 1273). As indicated by RTCA for 160 h, curcumin decreased the CI of all synovial sarcoma cell lines as well as T778 and HT1080. VAE diminished the CI in most of the synovial sarcoma (SW982, SYO1) and liposarcoma (SW872, T778) cell lines as well as HT1080. Primary fibroblasts were not affected adversely by the two compounds in RTCA. CONCLUSION: Curcumin and VAE can inhibit the proliferation and viability of STS cells.


Asunto(s)
Curcumina/farmacología , Extractos Vegetales/farmacología , Sarcoma/tratamiento farmacológico , Viscum album/química , Antineoplásicos Fitogénicos/farmacología , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Colorimetría , Humanos
20.
Handchir Mikrochir Plast Chir ; 48(6): 340-345, 2016 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-28033624

RESUMEN

Introduction: At the consensus meeting on "Plastic Surgery in the Palliative Situation" at the 37th Annual Meeting of the DAM 2015 in Bochum, treatment options were discussed with oncologists and palliative care anesthesiologists and recommendations were given. Methods: The literature was reviewed and the results of the expert-meeting options and limits of therapy were illustrated. The role of plastic surgery for palliative care patients was pointed out and recommendations given for successful cooperative treatment. Results: A rational combination of chemotherapy and surgery as well as early integration into a palliative care concept prolongs survival and improves the quality of life of patients in the palliative situation. Discussion: Plastic surgeons should regularily attend tumour boards to spread the knowledge of the value of reconstructive procedures in multidisciplinary treatment, in order to enhance the quality of live of the palliative patient. Participation in the preparation of the next treatment guidelines for palliative care would be desirable. Whenever patients are considered in a palliative situation, palliative care anesthesiologists should be involved.


Asunto(s)
Microcirugia , Cirugía Plástica , Consenso , Humanos , Lenguaje , Cuidados Paliativos , Calidad de Vida
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