Publications by authors named "Dirk F Richter"

Thermogenic brown adipose tissue (BAT) has emerged as an attractive target for combating obesity. However, pharmacological activation of energy expenditure by BAT and/or induction of browning of white adipose tissue (WAT) has been hampered by cardiovascular side effects. To address these concerns, we developed polylactide-co-glycolide acid (PLGA) microspheres loaded with mirabegron (MIR), a selective beta-3 adrenergic receptor (ADRB3) agonist, to achieve sustained local induction and activation of thermogenic adipocytes.

View Article and Find Full Text PDF

Background: Abdominoplasty is one of the most popular esthetic procedures. Seroma is the most frequent postoperative complication. Two decades of literature have described benefits of quilting sutures/progressive tension sutures (PTS) in reducing seroma rates and other complications in abdominoplasties.

View Article and Find Full Text PDF

Background: In many countries, the worldwide spread of COVID-19 has led to a near total stop of non-urgent, elective surgeries across all specialties during the first wave's peak of the pandemic. For providers of aesthetic surgery procedures or minimal invasive cosmetic treatments, this led to a huge socio-economic impact worldwide. In order to evaluate valid clinical management strategies for future pandemic events and to overcome the challenges imposed by the current pandemic, it is paramount to analyse the socio-economic effects caused by the COVID-19 crisis.

View Article and Find Full Text PDF

Background: Secondary breast reduction is complex and poses significant challenges to surgeons. Complication rates exceed those of primary reduction, commonly caused by impaired vascular supply of the nipple-areolar complex (NAC). Literature on the topic is scare and provides contradicting recommendations, especially with regard to pedicle choice in cases with unknown primary reduction technique.

View Article and Find Full Text PDF

Background: The aim of this review article was to study recent articles and summarise the guidelines, indications, risks and benefits of using VTE prophylaxis in patients undergoing abdominoplasty and liposuction.

Methods: A search of PubMed was performed using selected keywords related to the topic. Based on the inclusion and exclusion criteria, a total of 25 articles were included in the review.

View Article and Find Full Text PDF

Lipoedema is a painful, chronic progressive disorder of adipose tissue, characterised by symmetrical swelling of the lower and/or upper limbs. Due to a lack of awareness, lipoedema is frequently misdiagnosed. However, accurate diagnosis and treatment are essential since they determine the patient's prognosis.

View Article and Find Full Text PDF

Die vorliegende überarbeitete Leitlinie zum Lipödem wurde unter der Federführung der Deutschen Gesellschaft für Phlebologie (DGP) erstellt und finanziert. Die Inhalte beruhen auf einer systematischen Literaturrecherche und dem Konsens von acht medizinischen Fachgesellschaften und Berufsverbänden. Die Leitlinie beinhaltet Empfehlungen zu Diagnostik und Therapie des Lipödems.

View Article and Find Full Text PDF

The present, revised guidelines on lipedema were developed under the auspices of and funded by the German Society of Phlebology (DGP). The recommendations are based on a systematic literature search and the consensus of eight medical societies and working groups. The guidelines contain recommendations with respect to diagnosis and management of lipedema.

View Article and Find Full Text PDF

The treatment of prominent eyes is still a challenging task. As well as the surgery, proper preoperative diagnosis differentiating between patients with and without Graves ophthalmopathy plays an important role. In functionally asymptomatic patients with Graves disease suffering from the aesthetic impairment of prominent eyes, the transpalpebral decompression by intraorbital fat removal technique has been proved to be reliable, effective, safe, and easily performed by a trained and experienced oculoplastic surgeon.

View Article and Find Full Text PDF

A 2-position circumferential approach for body contouring of the lower trunk is presented. Mostly indicated in patients after massive weight loss, this approach allows the simultaneous skin resection and reshaping in the abdominal, flank, lateral thigh, back, and gluteal region in the same operation, with only one position change during surgery. Reconstruction of the abdominal wall and gluteal restoration allow volume and shape enhancement with autologous tissue transpositioning.

View Article and Find Full Text PDF

Male patients after massive weight loss often suffer from redundant skin and soft tissue in the anterior and lateral chest region, causing various deformities of pseudogynecomastia. Techniques with free or pedicled nipple-areola complex (NAC) transposition are widely accepted. The authors present their approach to male breast reduction with preservation of the NAC on a central dermoglandular pedicle and a wide elliptical tissue excision of breast and lateral thorax tissue in combination with liposuction.

View Article and Find Full Text PDF

Abdominoplasty and lower body lift procedures are the most common and sufficient procedures to correct abdominal tissue redundancy. Frequently, patients who undergo these procedures have lost a relevant amount of weight and additionally present tissue redundancy in the area of the medial thighs. Patients with mild to moderate skin surplus in the medial thigh region often refuse an additional scar in this specific region.

View Article and Find Full Text PDF

The purpose of this study was to determine the effect of transplanted human mesenchymal stem cells (hMSCs) on wound healing. In this model, full-thickness cutaneous wounds were created by incision in the skin of adult New Zealand white rabbits and treated by transplanted hMSCs into the wounds. Wound healing was evaluated by histological analysis and tensiometry over time.

View Article and Find Full Text PDF

Background: Panniculectomy surgery is performed to remove a massive pannus, or abdominal apron, which frequently contributes to a number of health concerns. The resection of such a massive abdominal panniculus is technically difficult due to the weight of the tissue and the difficulty in handling it during surgery.

Methods: We performed a retrospective review on 20 morbidly obese patients (14 male, six female) who underwent a panniculectomy with a resection weight of >6 kg between November 2003 and November 2007 at our department.

View Article and Find Full Text PDF

Multiple benign symmetric lipomatosis (MSL) is characterized by a rapid progression of multiple, symmetric nonencapsulated fat masses in the face, neck, and extremities. The lipomas are thought to be the result of defective brown adipose tissue (BAT). In up to 90% MSL is associated with chronic alcohol abuse.

View Article and Find Full Text PDF

Obesity and overweight in the general population have increased significantly over the last several years. Such increases have stimulated many approaches to treat this condition from a clinical perspective, with improved surgical and conservative measures that have become available for controlling overweight. The present article examines both established procedures for performing body lift procedures and innovative approaches that are now available, as well as their potential complications.

View Article and Find Full Text PDF

Background: Graves' ophthalmopathy is a chronic, multisystem disorder characterized by increased intraorbital fat tissue and hypertrophic extraocular muscles caused by an autoimmune process. Graves' ophthalmopathy represents the most frequent extrathyroidal manifestation of Graves' disease. Clinical findings are impaired ocular motility, diplopia, lid retraction, and impaired visual acuity up to optic neuropathy, with menacing blindness.

View Article and Find Full Text PDF

The correction of bony frontal deformities has been accomplished with a variety of autogenous and alloplastic materials. Of the various materials currently available, polymethylmethacrylate (PMMA), a valuable biomaterial, has proved to be effective in reconstructing deformities of the frontal bone. The authors present one case of acquired frontal bone deformity reconstructed by subperiostal application of PMMA through a minimally invasive coronal approach.

View Article and Find Full Text PDF