Ethical, legal and practical issues of establishing an adipose stem cell bank for research.

Access to human tissue is critical to medical research, however the laws and regulations surrounding gaining ethical and legal access to tissue are often poorly understood. Recently, there has been a huge increase in the interest surrounding the therapeutic application of adipose tissue, and adipose-derived stem cells. To facilitate our own research interests and possibly assist our local colleagues and collaborators, we established a Research Tissue Bank (RTB) to collect, store and distribute human adipose tissue derived cells with all the appropriate ethical approval for subsequent downstream research. Here we examine the legal, ethical and practical issues relating to the banking of adipose tissue for research in the UK, and discuss relevant international guidelines and policies. We also share our experiences of establishing an RTB including the necessary infrastructure and the submission of an application to a Research Ethics Committee (REC).

Soft tissue management of children's open tibial fractures--a review of seventy children over twenty years.

INTRODUCTION: The management of open tibial fractures in children represents a unique reconstructive challenge. The aim of the study was to evaluate the management of paediatric open tibial fractures with particular regard to soft tissue management. PATIENTS AND METHODS: A retrospective case-note analysis was performed for all children presenting with an open tibial fracture at a single institution over a 20-year period for 1985 to 2005. RESULTS: Seventy children were reviewed of whom 41 were males and 29 females. Overall, 91% (n = 64) of children suffered their injury as a result of a vehicle-related injury. The severity of the fracture with respect to the Gustilo classification was: Grade I, 42% (n = 29); Grade II, 24% (n = 17); Grade III, 34% (n = 24; 7 Grade 3a, 16 Grade 3b, 1 Grade 3c). The majority of children were treated with external fixation and conservative measures, with a mean hospital in-patient stay of 13.3 days. Soft tissue cover was provided by plastic surgeons in 31% of all cases. Four cases of superficial wound infection occurred (6%), one case of osteomyelitis and one case of flap failure. The limb salvage was greater than 98%. CONCLUSIONS: In this series, complications were associated with delayed involvement of plastic surgeons. Retrospective analysis has shown a decreased incidence of open tibial fractures which is reported in similar studies. Gustilo grade was found to correlate with length of hospital admission and plastic surgery intervention. We advocate, when feasible, the use of local fasciocutaneous flaps (such as distally based fasciocutaneous and adipofascial flaps), which showed a low complication rate in children.

The osmotic tissue expander: a 5-year experience.

Tissue expansion is a valuable technique in soft tissue reconstruction. Osmotic expanders are self-inflating and obviate the need for repeated injections. In doing so, they eliminate port site problems and may reduce the potential to introduce infection. The use of such expanders has become more common in recent years. We report on our experience with the Osmed™ osmotic expanders over the last 5-years.

Long-term results of posterior suturing with postauricular fascial flap otoplasty.

BACKGROUND: Posterior suturing with postauricular fascial flap otoplasty has previously been shown to be associated with a significantly reduced rate of complications and better aesthetic outcome when compared with the anterior scoring and posterior suturing techniques. This study evaluates the long-term results of this technique. MATERIAL AND METHODS: A retrospective casenote analysis of all paediatric patients who underwent otoplasty within a four-year period were retrieved. Sixty patients (112 ears) met the inclusion criteria (mean age 8.5 years; range 4 to 14). The perpendicular distance from the mastoid to the helical rim at the Frankfort line was recorded preoperatively and immediately postoperatively. Patients were invited to a follow up clinic where further measurements were taken by two observers. Photographs were evaluated by an independent blinded observer. RESULTS: The clinical recurrence rate was 4.5%. Thirty patients (57 ears) attended the follow-up clinic (mean 3.9 years since surgery). Mean loss of medialisation was 0.7 mm (6.2%), with loss of medialisation of > or =1 mm seen in 26 ears (46%), and improvement in medialisation of > or =1 mm in 15 ears (26%). Mean visual analogue scores for overall appearance and symmetry were higher at follow-up than at six weeks postoperatively. There was no relationship between measurements or visual analogue scores and duration since surgery. CONCLUSIONS: In conclusion posterior suturing with braided polyester permanent sutures covered with a postauricular fascial flap results in longevity of postoperative appearance and symmetry with low clinical recurrence rates and with excellent patient and parent satisfaction.

Remodelling of the pinna in myxoid degeneration of the ear.

Idiopathic deformation of the pinna is not widely reported in the current literature. We present a series of cases in which patients have required surgery for spontaneous thickening and deformation of the auricular cartilage, and a description of a technique for surgical correction. Four cases of idiopathic deformation of the pinna are reported. Our preferred technique of scaphoid rim incision and anterior carving of the cartilage is described, with intra-operative photographs. Each patient reported spontaneous swelling of the upper poles of the ears beginning in the second or third decade of life. In 3 cases the deformity was bilateral, although in each of these cases one side was more severely affected than the other. Histology for these cases was reported as myxoid degeneration of the ear. All of the reported patients were pleased with the aesthetic outcome of their auricular remodelling. Currently, there are no typical patient demographics for idiopathic myxoid degeneration of the ear. We have achieved good aesthetic results by hand carving the anterior aspect of the deformed cartilage via scaphoid rim incisions.

The influence of geography on uptake of plastic surgery services - analysis based on bilateral breast reduction data.

The hub-and-spoke model was introduced in the National Health Service (NHS) with the goal of providing equitable access to health care for all. This study uses bilateral breast reduction (BBR) surgery to assess the success of this model in delivering equity of access for plastic surgery within a publicly funded health-care system. This study also assessed the effect of socioeconomic deprivation on patients seeking BBR. The hospital records were used to identify all patients who underwent BBR at the St. John's Hospital between 1996 and 2005 (N=1081). Patients living outside the catchment area were excluded. Realistic travel distances and times to the hospital and clinics were calculated using patients' postcodes and geographic information systems (GIS) network analysis. Carstairs deprivation scores were obtained for the residential postcode of each patient. The main findings of this study are (1) accessibility to a plastic surgery clinic is an important factor in determining whether an eligible female patient undergoes BBR and (2) most deprived parts of the catchment area accounted for a significantly greater proportion of patients.

Decreased exercise blood pressure in older adults after exercise training: contributions of increased fitness and decreased fatness.

OBJECTIVE: To describe the contribution of changes in fitness and fatness resulting from exercise training on changes in submaximal exercise blood pressure (BP) during treadmill testing. DESIGN AND SETTING: Prospective, randomised, controlled trial. PARTICIPANTS: Sedentary older adults (n = 115) with untreated prehypertension or mild hypertension. INTERVENTION: Six-month supervised aerobic and strength training. MAIN OUTCOME MEASUREMENT: Systolic BP (SBP) was assessed at rest and during each stage of a maximal graded exercise test (GXT) that determined Vo(2)peak. General and regional fatness was assessed by anthropometry, dual-energy x-ray absorptiometry and MRI. BP changes were calculated for each GXT stage, and multivariate regression models were used to describe the association of changes in exercise BP with changes in fitness and fatness. RESULTS: After training, exercisers versus controls had significantly increased Vo(2)peak and significantly lower measures of general and regional fatness. Also, stage-specific SBP was significantly lower at stage 3 (-9.4 vs -1.6 mm Hg, p = 0.03) and stage 4 (-7.9 vs -1.2 mm Hg, p = 0.03). Pooled regression analysis across all stages showed that exercisers had a 7.1 mm Hg reduction in SBP, but this reduction fell short of statistical significance (p = 0.12) compared with controls. A 1.0 ml/kg/min increase in Vo(2)peak and a 1.0 cm decrease in waist circumference independently predicted a 1.0 mm Hg decrease in exercise SBP (p = 0.04 and p = 0.001, respectively). CONCLUSIONS: Decreased exercise SBP was independently associated with decreased waist circumference, a marker of abdominal obesity and increased fitness. These findings suggest that exercise training improves multiple factors that have an independent influence on SBP.

Plastic surgical options for HIV-associated lipodystrophy.

With the reported prevalence of HIV-associated lipodystrophy approaching 80%, this patient group presents an increasing challenge to plastic surgeons. Based on a literature search conducted using OVID Medline, this review shall describe the various treatment options employed by plastic surgeons to deal with the problems of fat distribution in patients suffering from HIV-lipodystrophy, and examine the evidence for each treatment.

Experience in the treatment of HIV-associated lipodystrophy.

AIM: To evaluate the outcome of patients with HIV-associated lipodystrophy treated within the Edinburgh unit to date. METHODS: Information was collected from the medical case notes on the clinical features, method of treatment, postoperative complications, and length of follow up for each patient. A questionnaire was devised to assess patient satisfaction and facial volume was evaluated using three-dimensional imaging. RESULTS: Forty-six patients with HIV-associated lipodystrophy were treated over a 3-year period. Twenty-six patients received Coleman fat injections, 10 patients were treated with Newfill, eight patients were treated with Bio-alcamid, 21 patients received liposuction, and three patients had a minimal access cranial suspension facelift. Follow up ranged from 1 to 14 months. Patient and surgeon satisfaction was high with autologous fat injections although fat resorption occurred in nine patients. Aesthetic improvement with Newfill was moderate and required up to seven treatment sessions. The results of treatment with Bio-alcamid were good immediately postoperatively, although two patients required further corrective procedures. Two patients who had liposuction to the dorso-cervical fat pad reported recurrence at 5 and 9 months, respectively. CONCLUSIONS: Based on our experience, a treatment algorithm has been devised to aid management decisions. We favour the use of autologous fat injections for facial lipoatrophy but have found fillers to be useful in patients with inadequate fat reserves.

Paraileostomy recontouring by collagen sealant injection: a novel approach to one aspect of ileostomy morbidity. Report of a case.

INTRODUCTION: Poorly fitting stoma appliances, resulting in stomal leakage and subsequent skin excoriation, remain a significant cause of ileostomy-related morbidity. One cause of ill-fitting stoma bags is the presence of parastomal dermal contour defects/irregularities. These may occur after surgical complications or change in patient weight and body habitus. METHODS: We report the case of a 29-year-old man who, after panproctocolectomy and formation of ileostomy for ulcerative colitis, experienced significant problems with stoma bag application because of dermal contour defects. As a result, he suffered from significant stomal leakage and skin excoriation. After a single treatment of cutaneous parastomal infiltration of porcine collagen (Permacol Injection), applied stoma bags achieved a watertight seal, and the patient experienced complete and sustained resolution of his symptoms. CONCLUSIONS: Porcine collagen is a safe, versatile, and relatively easy method of restoring irregular skin defects surrounding abdominal stomas, thus resolving the significant patient morbidity associated with ill-fitting stomal appliances. Such a technique avoids the need for surgical stoma refashioning, which may be associated with significant morbidity and unsatisfactory outcomes.

Development of a guarded liquid ionization chamber for clinical dosimetry.

Liquid ionization chambers are considered superior to air-filled chambers in terms of size, energy dependence and perturbation effects. We constructed and tested a liquid ionization chamber for clinical dosimetry, the GLIC-03, with a sensitive volume of approximately 2 mm3. We also examined two methods to correct for general ion recombination in pulsed photon beams: that of Johansson et al, which modifies Boag's theory for recombination in gases, and an empirical method relating recombination to dose per pulse. The second method can be used even in cases where the first method is not applicable. The response of the GLIC-03 showed a stable, linear and reproducible decrease of 1% over 10 h. The liquid-filled GLIC-03 had a 1.1 +/- 0.4% energy dependence while that of the air-filled GLIC-03 was 2.1 +/- 0.3% between the 6 and 18 MV beams from a Clinac 21EX. The two methods for recombination correction agreed within 0.2% for measurements at 18 MV, 700 V, 100 MU min(-1). Measurements with the GLIC-03 in Solid Water in the build-up region of an 18 MV beam agreed with extrapolation chamber measurements within 1.4%, indicating that the GLIC-03 causes minimal perturbation.

Complications of 278 consecutive abdominoplasties.

The case notes of 278 consecutive patients who underwent abdominoplasty, during a five-year period, in one institution under the care of four surgeons were reviewed. Patient details, early and late complications and revision procedures were noted. Seventy-five percent of patients had a 'full' abdominoplasty with undermining to costal cartilage and repositioning of the umbilicus and 23% had 'mini abdominoplasties', 2% were revision operations. Eighteen percent of patients suffered from early complications the most common of which were seroma (5%), haematoma (3%), infection (3%), skin or fat necrosis (2.5%) and delayed healing (2%). Twenty-five percent of patients had late complications which were often relatively minor. These included 'dog ears' (12%), localised fatty excess (10%) and unsatisfactory scars (8%). Twenty-four percent of patients underwent revision surgery. Most commonly further liposuction (12%), dog ear revision (10%) and scar revision (5%). Analysis failed to reveal significant risk factors. Despite an apparently high complication and revision rate the subjective impression is of a satisfied patient cohort.

Comparison of cartilage scoring and cartilage sparing otoplasty--A study of 203 cases.

UNLABELLED: The Edinburgh experience of different methods of otoplasty techniques in 203 patients (406 ears) over a five-year period is reviewed. MATERIALS AND METHODS: The patients were divided into three groups - Group A (anterior cartilage scoring), Group B (cartilage sparing in the fashion of posterior suturing) and Group C (posterior suturing refined with posterior fascial flap). Demographic details, operation technique, operation time, grade of the surgeon, suture materials, early and late complications, recurrence and revision rates, patients' and physicians' comments at the follow-up clinic were retrieved from the case notes. The pre- and the post-operative photographs were assessed by a blinded lay observer and a physician and scored on a visual analogue scale. Median follow-up was 11 months. RESULTS: The recurrence rate was 11.0%, 8.0% and 4.8% in Groups A, B and C, respectively (p = 0.0214). Complications were more common in Group A (8.8%) and Group B (7.9%) compared to Group C (1.2%) (p = 0.0208). The cosmetic result was judged best in Group C. In our experience, cartilage-sparing otoplasty refined with the post-auricular fascial flap results in significantly reduced complication rate and improved aesthetic outcome.

Exercise effects on cardiac size and left ventricular diastolic function: relationships to changes in fitness, fatness, blood pressure and insulin resistance.

OBJECTIVES: To determine exercise training effects on cardiac size and left ventricular (LV) diastolic function and relationships of exercise induced changes in physiological and body composition parameters with cardiac parameters. DESIGN: Prospective, randomised controlled trial. SUBJECTS: Men and women (63.6 (5.7) years, body mass index 29.5 (4.4) kg/m(2)) with untreated hypertension (systolic blood pressure (BP) 130-159 or diastolic BP 85-99 mm Hg). MAIN OUTCOME MEASURES: Cardiac size and LV diastolic function, peak oxygen uptake (Vo(2)), muscle strength, general and abdominal fatness, and insulin resistance. INTERVENTIONS: 6 months of exercise training versus usual care. RESULTS: When analysed by group at six months, cardiac size and LV diastolic function did not differ between exercisers (n = 51) and controls (n = 53), whereas exercisers had significantly higher peak Vo(2) (28 v 24 ml/kg/min) and strength (383 v 329 kg), and lower fatness (34% v 37%), diastolic BP (73 v 75 mm Hg) and insulin resistance (quantitative insulin sensitivity check index 0.35 v 0.34) versus controls (all p