Potential Impacts of Nutritional Deficiency of Postbariatric Patients on Body Contouring Surgery:

[Postbariatric plastic surgery for body reconstruction]

Massive weight loss following bariatric surgery is often accompanied by functional impairments due to the resulting excess skin and soft tissues. To achieve both functional reconstruction and restoration of the body silhouette, it is imperative to undergo body contouring surgery involving the strategic transposition of tissues. Several surgical techniques are available for the affected body regions and their application for treatment is determined by the unique circumstances specific to each patient. When conducted by skilled practitioners, postbariatric body reconstruction can be executed safely, leading to outcomes that are both functionally and esthetically satisfying, ultimately contributing to an enhanced quality of life for patients. This article provides the fundamental principles for patient selection, surgical preparation, treatment planning, surgical techniques and the postoperative care following bariatric surgery.

Preparing Patients for Body Contouring Surgery and Postoperative Surveillance for Deep Venous Thrombosis

This article highlights the importance of the preoperative evaluation and considerations necessary in preparing patients for body contouring surgery after massive weight loss (MWL). The importance of evaluating such factors as body mass index stabilization, medical comorbidities, nutritional optimization, social factors, deep venous thrombosis prophylaxis, and postoperative surveillance is critically important. Patients undergoing body contouring surgery after MWL are at increased risk of thromboembolic events, and prophylactic measures should be taken to minimize this risk. Overall, a thorough preoperative evaluation is essential to ensure patient safety, optimize surgical outcomes, and address the unique challenges presented by the MWL patient population.

Spiral Flap Breast Reshaping with Transverse Upper Body Lift or J Torsoplasty

This article presents our evolved surgical approach to upper body, breasts, and arms after massive weight loss, which frequently complements lower body oblique flankplasty with lipoabdominoplasty. Deflated breasts need to be lifted, augmented, and securely shaped. Surrounded by chest and back skin rolls, the breast footplate usually descends. From this neighboring epigastric and lateral thoracic excess skin, spiraled deepithelialized skin flaps reshape and raise the breasts. Except in cases of severe skin laxity, the transverse bra line approach has been replaced by J torsoplasty for improved esthetics.

Recurrent abdominal laparotomy wound infection and dehiscence in a patient with zinc and selenium deficiency associated with Roux-en-Y gastric bypass: Case report and literature review

We report a case of a 72-year-old woman who developed recurrent abdominal laparotomy wound dehiscence and infection following a hepatico-jejunostomy. Her surgical history included a Roux-en-Y gastric bypass (RYGB) that was carried out 11 years ago. Upon further assessment in the current admission, she was found to be deficient in both selenium and zinc. Daily multivitamin and mineral tablets and a nutritional supplement drink were prescribed to address her deficiencies. After 2 months of supplementation, the laparotomy wound had made significant healing progress and no further surgical input was required. This case illustrates the importance of assessing micronutrient levels in patients with a history of bariatric surgery who present with poor wound healing and infection. Bariatric patients should also be educated about the risks of nutritional deficiencies and encouraged to adhere to prescribed dietary and lifestyle changes. Importantly, family medicine and primary care physicians need to consider an adequate level of supplementation of micronutrients in all patients with RYGB surgery.

Complications Post Abdominoplasty After Surgical Versus Non-surgical Massive Weight Loss: a Comparative Study

PURPOSE

This study aims to investigate the rate of short- and long-term complications as well as the need for operative revisions after abdominoplasty for patients following surgical versus non-surgical weight loss methods.

METHODS

This is a retrospective chart review that enrolled consecutive patients undergoing abdominoplasty across a 5-year period, aged 18 years and above, opting for abdominoplasty after weight loss achieved through bariatric surgery or diet and exercise alone.

RESULTS

A total of 364 patients lost weight through bariatric surgery and 106 by diet and exercise alone. There were no significant differences in comorbidity status, but past body mass index (BMI) was higher for the surgical weight loss (SW) group (47.6 ± 10.2 and 40.4 ± 8.6, respectively; p value < 0.0001). Percent excess weight loss (EWL) was 68 ± 14.5 for the SW group and 55.7 ± 19.4 for the NSW group, p value < 0.0001. Pre- and postoperative blood hemoglobin levels were significantly lower in the SW group (p < 0.05). Neither short-term complications (thromboembolic events, wound complications, or infections) nor long-term complications (umbilical deformity, delayed wound healing, or infection) and operative revisions were significantly different across both groups (p > .05).

CONCLUSION

Bariatric surgery does not increase the risk of short- or long-term complications or the need for operative revision after abdominoplasty.

De-epithelialized Dermal Flap to Reduce Sacral Wound Healing Complications After Lower Body Lift Procedure

BACKGROUND

Lower or circumferential body lift procedures in the massive-weight-loss population have been associated with significant complication rates. Particularly, the sacral area is at risk of wound-healing problems due to high wound tension or shear forces.

OBJECTIVES

The authors introduced a de-epithelialized dermal flap to reinforce the sacral area.

METHODS

Within this retrospective study, outcomes of 40 consecutive patients who underwent lower body lift between 2017 and 2021 were analyzed. The patient population was divided into 2 study groups (sacral flap vs no flap) including 20 patients each. Demographic and surgical data as well as complications were evaluated and compared. Appropriate statistical analysis was performed.

RESULTS

Thirty-seven female and 3 male patients with a median age of 36.5 years (range, 23-54 years) and a mean weight loss of 46.3 ± 12 kg participated in the study. The most common complication was sacral wound dehiscence (n = 7, 17.5%), and its occurrence was statistically significantly lower in the sacral flap group (P = 0.037). The odd ratios for complications when executing the sacral flap procedure were reduced to 0.306 (95% confidence interval = 0.075 to 1.246) and 0.261 (95% confidence interval = 0.055 to 1.250) for the uncorrected and corrected logistic regressions, respectively. In addition, findings showed a significantly shorter hospital stay as well as statistical trends towards a lower occurrence of overall complications in the sacral flap group. Concerning the remaining data, no statistically significant differences between study groups were detected.

CONCLUSIONS

The presented de-epithelialized dermal flap leads to a significant reduction of sacral wound-healing complications and a shorter hospital stay for patients. This surgical technique is easily reproduceable, rapid, and effective; therefore, we would recommend it for each circumferential or lower body lift procedure.

LEVEL OF EVIDENCE: 4

Complications in post-bariatric body contouring surgery using a practical treatment regime to optimise the nutritional state

Background

Post-bariatric body contouring surgery (BCS) treats redundant skin after massive weight loss; however, the complication risk is relatively high (23-70%). Most complications are wound-related, which may be partly due to a poor nutritional status after bariatric surgery. The objective of this observational study was to optimise nutrition preoperatively and assess the prevalence of wound-related complications after BCS.

Methods

This prospective cohort study included 140 patients. Patients were treated according to the post-bariatric BCS guideline. Nutritional parameters were collected via pre- and peri-operative blood sampling; any deficiencies were treated. A protein-enriched diet was prescribed by a dietician 4 weeks preoperatively up until closure of all wounds. Complications were recorded using the Clavien-Dindo classification. Univariate and multivariate regression analyses were performed to identify variables associated with wound-related complications.

Results

The overall wound-related complication rate was 51%. Most complications were minor, with only 4.3% was considered major. No significant differences in patient characteristics were found between patients with and without complications. Variables indicating an optimised nutritional state were not significantly associated with a decreased risk of complications; the most influential factor was a sufficient post-operative protein intake (OR 0.27, 95% CI 0.07 – 1.02, p = 0.05).

Conclusion

The overall wound-related complication rate was in accordance with previous literature; however, major complications were few. This study showed a weak correlation between optimising nutritional state and better outcome after BCS, especially following a protein-enriched diet post-operatively. Therefore, we recommend continuing research on nutrition and wound-related complications, using homogeneous study populations and well-defined complications.

The Effect of Obesity, Bariatric Surgery, and Operative Time on Abdominal Body Contouring Outcomes

BACKGROUND

Abdominal body contouring procedures are associated with the highest rates of complications among all aesthetic procedures. Patient selection and optimization of surgical variables are crucial in reducing morbidity and complications.

OBJECTIVES

The purpose of this single-institution study was to assess complication rates, and to evaluate BMI, operative time, and history of bariatric surgery as individual risk factors in abdominal body contouring surgery.

METHODS

A retrospective chart review was performed of all patients who underwent abdominoplasty, circumferential lower body lift, fleur-de-lis panniculectomy (FDL), and circumferential FDL between August 2014 and February 2020. Endpoints were the incidence of venous thromboembolism, bleeding events, seroma, infection, wound complications, and reoperations. Univariate statistical analysis and multivariate logistic regressions were performed. Covariates in the multivariate logistic regression were BMI, procedure time, and history of bariatric surgery.

RESULTS

A total of 632 patients were included in the study. Univariate analysis revealed that longer procedure time was associated with infection (P = 0.0008), seroma (P = 0.002), necrosis/dehiscence (P = 0.01), and reoperation (P = 0.002). These associations persisted following multivariate analyses. There was a trend toward history of bariatric surgery being associated with minor reoperation (P = 0.054). No significant increase in the incidence of major reoperation was found in association with overweight or obese patient habitus, history of bariatric surgery, or prolonged procedure time. BMI was not found to be an individual risk factor for morbidity in this patient population.

CONCLUSIONS

In abdominal body contouring surgery, surgery lasting longer than 6 hours is associated with higher incidence of seroma and infectious complications, as well as higher rates of minor reoperation.

LEVEL OF EVIDENCE: 4

Nutritional Support for Bariatric Surgery Patients: The Skin beyond the Fat

Body contouring surgery after the massive weight loss due to bariatric surgery deals with different kinds of complications. The aim of this review is to analyze the role that some nutrients may play in tissue healing after surgery, thus helping plastic surgeons to improve the aesthetic and health outcomes in massive weight loss patients under a multidisciplinary approach. As a matter of fact, preoperative nutritional deficiencies have been shown for vitamins and minerals in a large percentage of post-bariatric patients. Preoperative deficiencies mainly concern iron, zinc, selenium, and vitamins (both fat-soluble and water-soluble), but also total protein. During the postoperative period, these problems may increase because of the patients' very low intake of vitamins and minerals after bariatric surgery (below 50% of the recommended dietary allowance) and the patients' low compliance with the suggested multivitamin supplementation (approximately 60%). In the postoperative period, more attention should be given to nutritional aspects in regard to the length of absorptive area and the percentage of weight loss.

Post-bariatric Abdominoplasty: Identification of Risk Factors for Complications

PURPOSE

The aim was to evaluate the complication rate after abdominoplasty procedures performed in a high volume post-bariatric center and to identify predictors of complications.

MATERIAL AND METHODS

A retrospective analysis was performed and included all abdominoplasty procedures performed between January 2011 and December 2019. Complications classified according to the Clavien-Dindo classification were documented and potential risk factors were statistically evaluated.

RESULTS

A total of 898 patients were included. Overall complication rate was 29.8%. Type I complications (minor wound problems) occurred in 15.8% (n = 140). Type II complications requiring medical intervention occurred in 10% (n = 90). Five patients had deep venous thrombosis or pulmonary embolism; others received antibiotic treatment for wound infections. In total 42 type III complications occurred in 36 patients, with re-intervention for wound problems (n = 16), seroma (n = 16), umbilical necrosis (n = 4), and bleeding (n = 6). The weight of tissue resected (p < 0.001), the interval between bariatric and body contouring surgery (p < 0.05), preoperative BMI (p < 0.05), male gender (p < 0.05), diabetes mellitus type 2 (p = 0.05), and smoking (p < 0.05) were important predictors for developing complications.

CONCLUSION

In this large retrospective post-bariatric abdominoplasty series, the overall complication rate is low compared to other published series as a consequence of our completely standardized approach and technique. Our analysis shows a significant linear correlation between the amount of skin tissue resected and postoperative complications. Moreover, the longer the interval between bariatric surgery and abdominoplasty, the higher the complication rate. High preoperative BMI, diabetes mellitus type 2, smoking, and male gender were identified as independent significant risk factors for complications.

Evidence-Based Perioperative Nutrition Recommendations: Optimizing Results and Minimizing Risks

Plastic surgery patients span the nutritional spectrum from generally healthy, nutritionally competent patients to inherently catabolic, nutritionally deficient, and chronic wound patients. Therefore, plastic and reconstructive surgery affords the opportunity to investigate the impact of nutrition across a heterogeneous patient population following a wide variety of procedures. Although patients may be nutritionally deficient in certain vitamins warranting perioperative repletion, other supplements have the potential to benefit all patients, regardless of nutritional status. Despite these putative benefits, there is a dearth of information regarding nutritional optimization, with the limited, available literature focusing mostly on herbal supplements and their potential side effects. A significant barrier to supplement use is the lack of education and available supporting information regarding the indications, contraindications, and physiology of these adjuncts. The goal of this article is to provide a comprehensive, evidence-based review of available nutritional supplements that can be considered for the plastic surgery patient in the perioperative period to optimize surgical outcomes while minimizing risk. Prospective, well-designed studies using validated, high-quality supplements will be critical in determining the significance that perioperative supplementation can have for surgical outcomes. Until well-done prospective studies are performed, the supplement, dose, and duration should be determined on an individual, patient-per-patient basis at the discretion of the operating surgeon.

Lower Body Lift After Bariatric Surgery: 323 Consecutive Cases Over 10-Year Experience

BACKGROUND

Lower body lift is a widespread procedure for massive weight loss patients aimed to improve the contour of the lower trunk, gluteal region and proximal lower extremity. The data about complications are confusing, and there is a lack of uniform studies for massive weight loss patients. A simple formula to carry out a reliable procedure in a short time with a low complication rate should be advocated.

METHODS

This retrospective study analyzed data of 323 patients undergoing lower body lift after bariatric surgery over a 10-year period. Selection criteria, careful preoperative marking, reliable intra- and postoperative care and a few surgical tips are discussed. All the complications (both major and minor) and the aesthetic satisfaction were evaluated. Risk factors assessed were patient age, tobacco consumption, current BMI, operative time and combined surgery.

RESULTS

The overall complication rate was 42%. We recorded a lower rate of major complications and skin dehiscence; no infection and no skin necrosis were observed. The most frequent complication was seroma (35%). A complication development was straight related to age (p = 0.0177) and tobacco use (p = 0.0336). Patients' satisfaction about overall aesthetic was high.

CONCLUSIONS

We present our case load and describe an easy recipe to perform a safe surgery without undermining and liposuction in short operative times. The reasonable overall complication rate and the surprisingly lower rate of dehiscence and skin necrosis combined with a pleasant aesthetic result make the lower body lift an easy and safe procedure, when applied to the appropriate patient population.

LEVEL OF EVIDENCE IV

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Rapid Bodyweight Reduction before Lumbar Fusion Surgery Increased Postoperative Complications

Study Design

Retrospective cohort study.

Purpose

To determine the effects of massive weight loss on perioperative complications after lumbar fusion surgery (LFS).

Overview of Literature

Patients who are obese are more likely to experience low back pain, which would require LFS. Nonetheless, they have a higher risk of perioperative complication development compared with individuals who are not obese.

Methods

Patients who underwent LFS at hospitals that participated in the National Surgical Quality Improvement Program database within the United States between 2005 and 2015. Outcomes included 30-day medical complications, surgical complications, and length of stay (LOS). We analyzed a total of 39,742 patients with the use of the International Classification of Disease, ninth revision codes. The patients were categorized in the following two groups: group 1, individuals with a history of massive weight loss within 6 months before LFS, and group 2, individuals without a history of massive weight loss before surgery. Massive weight loss was defined as loss of 10% of total body weight. Patients with a history of malignancy or chronic disease were excluded from the study. Patients in each group were randomly matched based on age, gender, sex, smoking status, and body mass index. Paired two-tailed Student t-tests were used to compare the outcomes.

Results

Of the 39,742 patients identified, 129 (0.32%) met the criteria for inclusion in the weight loss group (WL group) and were successfully matched to individuals in the non-weight loss group (non-WL group). Compared with the non-WL group, the WL group had a significantly longer LOS (9.7 vs. 4.0 days, p<0.05), higher surgical site infections (SSIs) (8.0 vs. 3.0, p<0.05), increased number of blood transfusions (40.0 vs. 20.0, p<0.05), and greater deep vein thrombosis (DVTs) (5.0 and 0.00, p<0.05).

Conclusions

On a nationwide scale, rapid weight loss before LFS is associated with a higher rate of postoperative complications, including SSI and DVTs, longer average LOS, and more frequent blood transfusions.

Getting the Most Out of Augmentation-Mastopexy

LEARNING OBJECTIVES

After reviewing the article, the participant should be able to: 1. Understand the tenets of proper patient selection. 2. Be familiar with the assessment of patients for augmentation-mastopexy. 3. Be able to plan an operative approach and execute the critical steps. 4. Be able to recognize common complications and have a basic understanding of their management. 5. Be aware of emerging adjunctive techniques and technologies with respect to augmentation-mastopexy.

SUMMARY

Despite being a multivariable and complex procedure, augmentation-mastopexy remains a central and pivotal component of the treatment algorithm for ptotic and deflated breasts among plastic surgeons. Careful preoperative planning, combined with proper selection of approach and implant, can lead to success. Physicians need to understand that there is a high frequency of reoperation cited in the literature with regard to this procedure, and discussions before the initial operation can help alleviate common misunderstandings and challenges inherent in this operation.

Fleur-de-lis Abdominoplasty and Neo-umbilicus

Body contouring for patients with massive weight loss may demand not only lifting but also some extent of central body tightening to achieve complete tissue readjustment. Although the fleur-de-lis procedure usually achieves nice contouring results, poor visible scars, including umbilical complications, have restricted the indications for the anterior vertical approach. The purpose of this article is to present the authors' experience with the inner scar umbilical reconstruction, enhancing overall results for vertical abdominoplasties. The inner scar umbilicus is a simple, safe, and reproducible technique, presenting low complication rates with sustainable and natural results.

Improving Abdominal Plastic Scars with a Dietary Supplement-A Comparative Study

Introduction:

Massive weight loss following bariatric surgery has a major functional and aesthetic impact on patients. Many patients are nonetheless reluctant to undergo plastic surgery in connection with their former obesity because they fear potentially large scars, even though such scars are not visible (ie, they are covered by undergarments).

Purpose:

The aim of this study was to evaluate the quality of wound healing in patients receiving Celergen supplementation following abdominoplasty, compared with a control group. The hypothesis was that supplementation would speed up wound healing and improve scar quality.

Materials and Methods:

We conducted a prospective, monocentric, controlled study of patients undergoing abdominoplasty. A group of patients received Celergen, a food supplement, for 3 months and were monitored for 1 year after their surgery.

Results:

Of 33 patients who underwent abdominoplasty, 25 received Celergen supplements. There was no significant difference between the 2 groups. The mean time to wound healing was significantly better in the group receiving supplementation compared with the control group [respectively, 24.6 ± 9.31 days and 34 ± 13.48 days (P = 0.03)]. The Patient and Observer Scar Assessment Scale (POSAS) observer score was significantly better at 1 year in the group receiving supplementation compared with the control group [12.68 ± 6.6 and 17.38 ± 5.24 (P = 0.01), respectively]. There was no significant difference in the total POSAS score at 1 year (P = 0.166).

Conclusion:

Celergen supplementation significantly improved the time to healing and the POSAS observer score at 1 year for patients undergoing abdominoplasty.

Quality of life and scar evolution after negative pressure or conventional therapy for wound dehiscence following post-bariatric abdominoplasty

No studies have examined scars and quality of life after different treatments of wound dehiscence in patients undergoing post-bariatric abdominoplasty. Scars and quality of life of patients with postoperative wound dehiscence managed with negative pressure wound therapy (group A) and conventional wound therapy (group B) were reviewed 6 months after wound healing. Of 38 patients undergoing treatment for wound dehiscence after 203 abdominoplasty, 35 (group A = 14 versus group B = 21) entered the study. Wound healing in group A was significantly faster than group B (P = 0·001). Patients (P = 0·0001) and observers (P = 0·0001) reported better overall opinions on a scar assessment scale for group A. Better overall quality of life and general health satisfaction were observed in group A (P < 0·05). A significant correlation was observed between the World Health Organization Quality of Life scores and Patient and Observer Scar Assessment Scale scores (r=-0·68, P < 0·0001) in all 35 patients. Negative pressure wound therapy is feasible and effective in patients with wound dehiscence following post-bariatric abdominoplasty. An adequate post-treatment outcome is achieved compared with conventional wound therapy in light of a strong association found between worse patient scar self-assessment and poor overall quality of life, regardless of the received treatment.

Circumferential Contouring of the Lower Trunk: Indications, Operative Techniques, and Outcomes-A Systematic Review

BACKGROUND

Increasing obesity prevalence and development of bariatric surgery have led to the development of skin re-draping techniques. Several contouring techniques have been described for treating the circumferential excess of the lower trunk.

MATERIALS AND METHODS

We performed a systematic review to summarize surgical indications, operative techniques, peri-operative management (nutritional supplementation, antibiotic prophylaxis, thrombo-prophylaxis), outcomes, complications, patient satisfaction, and impact on quality of life of circumferential contouring of the lower trunk procedures. A systematic review, based on the PRISMA criteria, was conducted using the Pubmed and Cochrane databases.

RESULTS

The review included 42 articles and 1748 operated patients. Two studies only were graded as level of evidence II; the others were graded as levels III to V. The most frequently reported indication was massive weight loss. All the described techniques derived either from belt lipectomy or lower bodylift. Belt lipectomy resulted in a posterior scar situated at the waistline and allowed a better correction of hip back rolls, whereas lower bodylift was more effective on buttock and lateral thigh ptosis. The most reported complication was wound dehiscence. Patient satisfaction and quality of life scores were high in all studies.

CONCLUSIONS

This review included a majority of low-level evidence studies that limit extrapolability of the results. Future randomized prospective studies may generate stronger evidence, with a standardization of surgical indications and operative techniques.

LEVEL OF EVIDENCE III

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

[Morbidity of bodylift. Evaluation of 111 patients over 5 years]

INTRODUCTION

The management of patients with weight loss sequelae, sometimes major, is increasingly well standardized. However, this surgery is not without risk. Complications of bodylift are more frequent than those of conventional abdominoplasties. The objective of this study was to evaluate the morbidity associated with this surgery through a retrospective, single-center study.

MATERIALS AND METHODS

One hundred and eleven circular abdominaloplasties were conducted between June 2011 and September 2015 in the plastic surgery department of the university hospital of Toulouse. Minor and major complications were identified and analyzed.

RESULTS

Frequency of postoperative complications was 44.1% in our series. Major complications have involved 15.3% of patients. Blood transfusions (9%) and hematoma requiring reoperation (7.2%) were the most frequent major complications. We found significantly more major complications in patients with important fat resection with a cut off at 3200 g (P=0.02). Men experienced significantly more major complications than women (P=0.005). The average delta-BMI (before and after weight loss) was significantly higher in the group of patients with the highest percentage of minor complications (P=0.045). Indeed, a high delta-BMI (greater than 19.5) was associated with an excess risk of minor complications in our population.

CONCLUSION

Democratization and progress in the field of bodylift should not obscure the fact that it is, in reality, a procedure at risk. While we manage increasingly better cosmetic results and thromboembolic complications, it still persists many complications.

Surgical Elimination of the Gastric Digestion by Roux-en-Y Gastric Bypass Impacts on Food Sensitisation-a Pilot Study

BACKGROUND

Impairment of gastric digestion due to pH elevation increases the risk for food allergy induction. As patients after Roux-en-Y gastric bypass (RYGB) surgery have lower gastric acidity and less gastric gland secretion, we aimed to analyse in a prospective study the effect of limiting gastric digestion capacity by surgical intervention on the immune response towards allergens.

METHODS

Nine patients undergoing RYGB surgery for morbid obesity and one control patient having undergone surgery for treatment of an incisional hernia were enrolled in the study. Before and 1, 3, 6, 9 and 12 months after surgery, blood was collected for analysis of specific IgE antibodies, and patients were subjected to skin prick testing with 16 food and 18 aeroallergens.

RESULTS

Skin prick test results revealed an increase of positive reactions indicating sensitisations towards the tested food and aeroallergens in 77.8 and 88.9 % of the patients, respectively, after surgical elimination of gastric digestion. These results were in line with elevated titers of food- and aeroallergen-specific IgE antibodies in 7 out of 9 (7/9) and 5/9 patients, respectively, after RYGB surgery. Serum cytokine levels revealed a mixed response for IFN-γ and were mostly beneath detection limit for IL-4.

CONCLUSION

A change of IgE reactivity pattern occurred after impairment of gastric digestion due to surgical elimination underlining the important gastric gatekeeping function during oral sensitisation. Even though this study indicates an increased allergy risk for gastric bypass patients, further studies are needed to investigate in-depth the immunological changes associated with RYGB surgery.

Lessons Learned After 15 Years of Circumferential Bodylift Surgery

Circumferential bodylift is a powerful procedure for achieving dramatic and natural body contouring changes in the massive weight loss patient. The care of these patients has raised our awareness of several important issues including safety, nutritional status, skin quality, recurrent laxity, surgical steps, and postoperative scars. Integration of this knowledge with various technical modifications over the last 15 years has improved our care for this cohort. We have not only seen a rise in the number of surgeries performed, but also the development of principles, techniques, and details that the authors feel necessary to share to achieve improved contour and more predictable outcomes. LEVEL OF EVIDENCE 4: Therapeutic.

The Impact of Protein Nutritional Supplementation for Massive Weight Loss Patients Undergoing Abdominoplasty

BACKGROUND

As more patients undergo bariatric surgery to assist with weight loss, the demand for post-bariatric body contouring surgery, to address both functional and aesthetic concerns, is increasing. However, high wound healing complication rates remain a significant problem for these patients. One theory is that chronic malnourishment and hypoproteinemia may contribute significantly to these wound healing complications.

OBJECTIVE

The purpose of this study was to determine the effect of pretreatment protein nutritional supplementation on wound healing in post-bariatric surgery massive weight loss patients undergoing abdominoplasty. Our hypothesis was that protein supplementation would decrease wound healing complications.

METHODS

A retrospective review was performed of 23 post-bariatric surgery patients undergoing abdominoplasty who received pretreatment protein nutritional supplementation. This group was compared with a historical control group of 23 post-bariatric surgery patients who underwent abdominoplasty in the period immediately before the implementation of the protein supplementation protocol. Patient demographics and procedural characteristics were similar for the two groups.

RESULTS

Forty-six patients were identified who had undergone abdominoplasty, half of whom were prescribed the protein supplementation protocol. Overall wound healing complication rates were significantly lower in the protein-supplemented group (0.0% vs. 21.8%, p = 0.04). There was no significant difference between the protein supplementation and historical control groups in regards to total complication rate.

CONCLUSIONS

Pretreatment protein supplementation is a simple intervention that can significantly decrease wound healing complications in post-bariatric surgery massive weight loss patients undergoing abdominoplasty. LEVEL OF EVIDENCE 4: Therapeutic.

Body Contouring After Bariatric Surgery

Individuals who undergo bariatric surgery generally experience rapid and dramatic weight loss. While the weight loss typically confers significant health benefits, an undesirable consequence is often excessive quantities of hanging, surplus skin. Some patients undergo body-contouring surgery (BCS) in order to improve health, mobility, appearance and psychological adjustment. While the majority of post-bariatric patients desire BCS in one or more body regions, a small percentage of patients receive such surgeries. Lack of knowledge about procedures, cost and (in the USA and several other countries) difficulty obtaining insurance reimbursement likely prevents many patients from undergoing BCS. Those who do undergo BCS appear to be at heightened risk for wound-healing complications. Despite these complications, the majority of patients report satisfactory BCS outcomes. The extant literature in this area provides a great deal of information about these issues; nevertheless, additional research is needed to further inform clinical management and improve patient outcomes.

Preoperative evaluation of the body contouring patient: the cornerstone of patient safety

The obesity pandemic has resulted in increasing cases of bariatric surgery and subsequent issues related to excess skin and laxity for patients. This patient population requires unique insight and consideration as part of the preoperative evaluation. Nutritional derangements are common, psychosocial issues are prevalent, and the sequelae of past and present medical conditions can all affect surgical planning and outcomes. This article familiarizes the plastic surgeon with the issues of the body contouring candidate and provides tools that may assist in surgical planning.

Long-term Quality-of-life Improvement in Gastric Banding Patients from Body-contouring Surgery

Following my prior study of long-term results after laparoscopic gastric banding concerning operative outcome and complications involving the gastric band itself, I now focus on long-term quality-of-life improvement in the same study group after body-contouring surgery. As determined from our electronic patient data system, 72 patients from the former study group subsequently sought body-contouring surgery at our hospital after successful weight loss. Patients were enrolled in a telephone interview and asked about their expectations and body image before and after postbariatric aesthetic surgery and how it altered their well-being in addition to the weight loss achieved with the gastric band. All patients undergoing postbariatric aesthetic surgery felt extremely uneasy with the hanging skin resulting from weight reduction. Patients cannot imagine the degree of dissatisfaction they will experience from the sagging skin that comes with weight loss. Hardly any patient expected fewer scars than he ultimately had after body-contouring surgery and reported an extreme improvement in body image. Gastric banding should not be performed without informing patients about the need for postbariatric body-contouring surgery, because most patients not forewarned suffer greatly from their body image after weight loss.

Postabdominoplasty Wound Dehiscence in Bariatric Patients: Biliopancreatic Diversion Versus Gastric Bypass: A Preliminary Study

BACKGROUND

Surgical procedures with an extended follow-up and therefore recognized as safe in literature are classified into 2 categories: procedures limiting the introduction of food mechanically (restrictive interventions such as adjustable gastric banding, vertical banded gastroplasty, and sleeve gastrectomy) or functionally (mini gastric bypass or gastric bypass) and procedures limiting absorption (mainly biliopancreatic diversion [BPD]).

MATERIALS AND METHODS

Seventy-nine patients who underwent postbariatric abdominoplasty to correct serious flaws resulting from weight loss surgery were included in this retrospective study. Dehiscence of the surgical wound was carefully investigated between the population previously submitted to BPD and gastric bypass. The data were analyzed by correlating the incidence of postoperative dehiscence by Fisher exact test, with a statistical significance level of P<0.05.

RESULTS

Among the 42 abdominoplasties after BPD, dehiscence rate was 33% (14 patients), whereas in the group of 37 patients who underwent gastric bypass, the occurrence of dehiscence was 8% (3 patients).The Fisher exact test highlighted previously performed BPD as statistically significant for the onset of postoperative dehiscence (P=0.012).

CONCLUSIONS

There is a great need to validate these data on large or multicentric studies. The previous bariatric surgery procedure may play a role similar to so many other widely investigated risk factors such as smoking and body mass index, and some categories of patients should require even more attention in the preoperative, intraoperative, and postoperative management.

Action of ascorbic acid on the healing of malnourished rats'skin wounds

Objective: To evaluate the action of ascorbic acid on the healing of malnourished rats' cutaneous wounds compared with normal weight rats. Methods: We used 92 adult, male Wistar rats divided into four groups: 24 normal weight rats given only water and chow; 24 normal weight rats given vitamin C by gavage (340 mg/kg 12/12 hours); 22 malnourished rats given only water and chow; and 22 malnourished rats given vitamin C by gavage (340 mg/kg 12/12 hours). Malnutrition was induced by feeding the animals half of their daily energy requirement for 30 days. Two incisions were made, one sutured (healing by primary intention) and one left unsutured (healing by secondary intention). The rats were euthanized on the third, seventh, and fourteenth days of the experiment. Results: The following parameters differed significantly between the groups (p>0.05): granulation of the wound edge in the primary and secondary intention; extent of injuries on day 7 for primary intention and on day 3 for secondary intention; reepithelialization on day 7 for primary intention; fibrin-leukocyte scab on day 14 for primary intention; amount of neovascularization and concentration of macrophages, fibroblasts, and collagen fibers for primary and secondary intention. Conclusion: The use of vitamin C in malnourished and normal weight rats increases fibroblast proliferation and collagen deposition in the tissue, which helps to improve healing both by primary and secondary intention.

The effect of massive weight loss status, amount of weight loss, and method of weight loss on body contouring outcomes

BACKGROUND

The impact of massive weight loss (MWL) on body contouring procedures and outcomes has not been firmly established in the literature.

OBJECTIVE

The authors investigate the correlations between MWL status, the method of achieving MWL, and the amount of weight lost with wound-healing complications after body contouring procedures.

METHODS

The charts of 450 patients (124 of whom had undergone MWL) who underwent body contouring procedures including abdominoplasty, brachioplasty, thighplasty, breast mastopexy/reduction, lower bodylift, bodylift, buttock lift, and liposuction were reviewed. MWL patients were classified as having achieved weight loss through diet and exercise, gastric banding or sleeving, or gastric bypass. Postoperative complication data were collected, including cases of infection, delayed wound healing, seroma, hematoma, dehiscence, and overall wound problems. Odds ratios (OR) were estimated using 4 multivariate logistic regression models.

RESULTS

MWL status was a significant predictor of wound problems (OR, 2.69; P < .001). Patients with 50 to 100 lbs of weight loss did not have a significantly increased risk of wound problems (OR, 1.93; P = .085), while patients with over 100 lbs of weight loss did (OR, 3.98; P < .001). Gastric bypass (OR, 3.01; P = <.001) had a higher risk correlation than did diet and exercise (OR, 2.72, P = .023) or restrictive bariatric surgery (OR, 2.31; P = .038) as a weight loss method. Patients who lost over 100 lbs demonstrated increased risk of complications if they had gastric bypass or restrictive procedures.

CONCLUSIONS

MWL was a significant risk factor for wound complications in the body contouring population. Method and amount of weight loss were also significant factors in predicting complications.

Obesity and surgical wound healing: a current review

Objective. The correlation between obesity and deficient wound healing has long been established. This review examines the current literature on the mechanisms involved in obesity-related perioperative morbidity. Methods. A literature search was performed using Medline, PubMed, Cochrane Library, and Internet searches. Keywords used include obesity, wound healing, adipose healing, and bariatric and surgical complications. Results. Substantial evidence exists demonstrating that obesity is associated with a number of postoperative complications. Specifically in relation to wound healing, explanations include inherent anatomic features of adipose tissue, vascular insufficiencies, cellular and composition modifications, oxidative stress, alterations in immune mediators, and nutritional deficiencies. Most recently, advances made in the field of gene array have allowed researchers to determine a few plausible alterations and deficiencies in obese individuals that contribute to their increased risk of morbidity and mortality, especially wound complications. Conclusion. While the literature discusses how obesity may negatively affect health on various of medical fronts, there is yet to be a comprehensive study detailing all the mechanisms involved in obesity-related morbidities in their entirety. Improved knowledge and understanding of obesity-induced physiological, cellular, molecular, and chemical changes will facilitate better assessments of surgical risks and outcomes and create efficient treatment protocols for improved patient care of the obese patient population.

[Complications and level of satisfaction after dermolipectomy and abdominoplasty post-bariatric surgery]

BACKGROUND

Body contouring surgery is in high demand following the increase in bariatric surgery. But these types of procedures are associated with high complication rates that cause long hospital stays and have a negative effect on patient satisfaction. The purpose of this study is to identify predictors of complications in order to optimize outcomes in these patients and find a relationship between complication rate and satisfaction.

MATERIAL AND METHODS

Out of a group of 175 post-bariatric patients, 72 patients underwent body contouring surgery following massive weight loss from 2003-2008. They were reviewed retrospectively for demographic data, pre- and postoperative weight status, co-morbidities and complications and reoperation rate. Patient satisfaction was evaluated.

RESULTS

a)

COMPLICATIONS

The overall complication rate was 45.8%. The most frequent were seromas (23.6%); infection (13.9%), bleeding (11.1%), hematoma (6.9%) (needing transfusions [6.9%]), skin necrosis (6.9%) and umbilical necrosis (4.2%). A total of 8 patients required reoperation (11.1%). b) Satisfaction rating: 1) very satisfied: 51.4%, 2) satisfied: 31.9%, 3) dissatisfied: 8.3%, 4) very dissatisfied: 8.3%. c) The presence of complications was significantly associated with patients' satisfaction, reoperation rate and longer hospital stays (P<.001).

CONCLUSIONS

Post operative complications were frequent. No predictors could be found to prevent these complications and optimize patient selection and appropriate timing of surgery. Patients with complications had a significantly higher reoperation rate, longer hospital stay and more dissatisfaction. The patients' satisfaction was negatively influenced by complication occurrence and not by the aesthetic results.

Quill barbed sutures in body contouring surgery: a 6-year comparison with running absorbable braided sutures

BACKGROUND

Body contouring operations are concluded with suture closure of long incisions under tension. While an expeditious and secure repair without complications is the objective, wound closure typically consumes a substantial percentage of the operative time and too often leads to delayed wound healing and other problems.

OBJECTIVES

The authors evaluate suture-line wound healing for body contouring operations with barbed suture wound closure compared with absorbable running suture closure.

METHODS

In this retrospective study, wound-healing complications for a 228 consecutive-patient cohort with barbed sutures over a period of 4 years were compared with those for a prior 132 consecutive-patient cohort with absorbable running sutures over a period of 2 years. Complications were classified according to severity: grade 1 (mild), grade 2 (moderate), and grade 3 (severe). The preferred suture techniques for the closure of either thick or thin subcutaneous tissue under tension are described. The authors' clinical impressions are also presented.

RESULTS

Patients whose wounds were closed with absorbable running sutures had a significantly greater incidence of complications at all severity grades of severity than did those with barbed suture closures, with the exception of grade 3 (severe) complications in thighplasty. Logistical regression was <1, and the confidence interval was also <1, in support of these results.

CONCLUSIONS

Proper barbed suture selection and 2-layer technique led to a statistically significant lower rate of wound-healing complications as compared with prior experience with traditional running braided absorbable sutures. Other benefits were more rapid speed of closure, adequate security of the wound closure, and increased surgeon satisfaction.

LEVEL OF EVIDENCE

3.

Hematological variables and iron status in abdominoplasty after bariatric surgery

BACKGROUND

Abdominoplasty, the treatment for abdominal wall deformity stemming from weight loss after bariatric surgery, can cause postoperative anemia. Moreover, bariatric surgery has been associated with iron deficiency, which by itself can compromise erythropoiesis. The objective of this research is to describe the development of anemia after postbariatric abdominoplasty.

METHODS

The study group consisted of 32 adult women who had received bariatric surgery. Treatment group included 20 patients who were undergoing postbariatric abdominoplasty. Control group included 12 patients waiting for abdominoplasty. Values of hemoglobin, reticulocytes, iron, ferritin, and the transferrin saturation were obtained on the evening before abdominoplasty and during the first, fourth, and eighth postoperative weeks. Hemoglobin was measured at 48 h.

RESULTS

Mean hemoglobin levels for treatment group decreased from 12.98 to 10.8 g/dL after 48 h, increased on day 7 to 11.53 g/dL, but did not increase further after day 7. The reticulocyte number increased in the first week. Serum iron and transferrin saturation index fell during the first week and remained low. Ferritin levels increased non-significantly from 29.77 to 37.24 ng/mL at week 1, then fell until they were decreased (16.44 ng/mL) by day 56.

CONCLUSIONS

As expected, hemoglobin fell after abdominoplasty. However, after a one-third recovery of hemoglobin concentrations by week 1 postoperative, they failed to return to preoperative levels by the eighth week. Additionally, by the eighth postoperative week, 45 % of abdominoplasty patients had developed an iron deficiency and hemoglobin deficit that was higher than that of patients who maintained normal iron stocks.

Lateral breast flap with superomedial pedicle breast lift

BACKGROUND

Single-stage, durable aesthetic contouring of the volume-depleted and ptotic breast remains a challenge for plastic and reconstructive surgeons. These challenges are often even more difficult in the patient who has undergone massive weight loss (MWL).

OBJECTIVES

The authors describe their technique of reshaping the breasts of MWL patients with laterally-based breast flaps during a superomedial pedicle breast lift.

METHODS

A total of 20 patients were treated in a private clinic by one of the authors between April 2006 and January 2010 were included in this study. Each patient underwent breast reshaping with mastopexy, lateral breast autoaugmentation, and implant insertion. A laterally-based breast flap was developed to augment the involuted and ptotic breast and was dissected in conjunction with the superomedial pedicle breast lift to maintain the implant position, prevent bottoming out, and provide tissue coverage between the skin and breast implant in the advent of wound breakdown.

RESULTS

Mean follow-up for this patient series was 19.5 months (range, two to 47). The average patient age was 41 years (range, 21 to 56), and the majority of patients had Grade 2 ptosis (14 out of 20). The average volume of the implants in this study was 350 cc (range, 275 to 600). There were no instances of seroma or wound infection. Five patients had minor instances of wound breakdown, but none required surgical revision. One patient developed early capsular contracture and required revision. That same patient developed a small hematoma. Patient self-evaluation revealed a high level of satisfaction; all 20 patients reported being happy with their results.

CONCLUSIONS

The laterally-based breast flap, in combination with the superomedial pedicle mastopexy, is a powerful tool for use in the postbariatric or postpartum patient in whom the majority of the breast parenchyma is needed to fill the skin envelope. This flap serves to improve overall breast shape by providing added tissue along the deficient inferior pole, relieving some of the unaesthetic lateral chest wall excess and providing an additional layer of support inferiorly along the fold.

Complications after body contouring surgery in post-bariatric patients: the importance of a stable weight close to normal

OBJECTIVE

Body contouring surgery is in high demand following the increase in bariatric surgery. Massive weight loss leads to an excess of lax, overstretched skin causing physical and psychosocial discomfort. Plastic surgical procedures can give rise to an improvement in quality of life, but the relative high complication rate could negatively affect these potential gains. The purpose of this study is to identify predictors of complications in order to optimize outcomes in this patient population.

METHODS

Out of a group of 465 post-bariatric patients, 61 patients underwent body contouring surgery following massive weight loss. A total of 43 respondents were reviewed retrospectively for demographic data, pre- and post-operative weight status and co-morbidities. Medical complications were categorized according to the modified Clavien classification. All cases were analyzed for risk factors.

RESULTS

A stable weight over a period of at least 3 months prior to body contouring surgery is associated with a significant lower complication rate (odds ratio 0.24; CI 0.07-0.79) and the percentage excess weight loss (odds ratio 0.96; 95% CI 0.92-1.00) was an independent predictor for the occurrence of complications. The overall complication rate was 27.9% with a major complication rate of 8.8%. Most frequent procedures were abdominoplasty (61%) and breast reduction/ mammapexy (25%).

CONCLUSION

This study emphasizes the importance to strive for a stable weight close to normal before surgery to minimize the risk of complications. The positive effects of the long-term results of bariatric surgery tolerate the relative high complications rate. Careful pre-operative planning and patient selection are essential to optimize the results of body contouring surgery of post-bariatric patients.

Enhanced recovery after body-contouring surgery: reducing surgical complication rates by optimizing nutrition

BACKGROUND

Currently, many body-contouring patients are overweight or obese or recently have sustained massive weight loss. Often these patients need multiple surgical procedures with extensive incisions. The need for optimal healing in all these patient populations is, however, hampered by their existing nutritional deficiencies.

METHODS

Based on the authors' previous work (Agha-Mohammadi and Hurwitz Plast Reconstr Surg 122:604-618, 2008; Agha-Mohammadi and Hurwitz Plast Reconstr Surg 122:1901-1914, 2008), three clinical studies were initiated. The first study examined the preoperative nutritional parameters of 90 body-contouring patients. Of the 48 postbariatric patients, 38% had low prealbumin (<20 mg/dl), 33% had vitamin A deficiency, 32.6% had low hemoglobin (<12 g/dl), 16.3% had iron deficiency, 9.5% had vitamin B12 deficiency, and 12% had hyperhomocystinemia. Among the 42 nonbariatric patients, only 10% had low prealbumin and 11.5% had vitamin A deficiency. Other deficiencies were less remarkable. The second study evaluated the effect of a surgical nutritional supplement on the prealbumin, vitamin A, vitamin B12, and folate levels of 13 decubitus ulcer patients. The data indicated an increase in all the measured parameters, particularly a prealbumin increase of about 0.8 mg/dl per day. The third study investigated complications experienced by 131 body-contouring patients. The patients were divided into postbariatric and nonbariatric groups, then stratified according to their body mass index (BMI). The rates of minor and major complications in obese nonbariatric and postbariatric patients (receiving the nutritional supplement) were comparable with those of normal-weight nonbariatric patients.

CONCLUSION

Obese nonbariatric and postbariatric patients are at nutritional risk for many primary ingredients of wound healing and immune system competency. Appropriate nutritional supplementation is an effective means for correcting these nutritional parameters and can significantly reduce surgical complications associated with obesity and bariatric surgery.

Prospective assessment of nutrition and exercise parameters before body contouring surgery: optimizing attainability in the massive weight loss population

BACKGROUND

A lower body mass index at the time of body contouring surgery can optimize surgical options and, ultimately, aesthetic results. With increased emphasis on preoperative evaluation of the massive weight loss patient, the interrelationships between nutrition and exercise on body mass indices have not been well defined.

METHODS

One hundred thirty-three consecutive massive weight loss patients presented for body contouring. Two-week food logs, weekly exercise regimens, and body mass indices were measured. Outcome variables were assessed by univariate and multivariate analysis.

RESULTS

One hundred fifteen women and 18 men presented, with a mean age of 46.5 +/- 11.0 years, a maximum body mass index of 52.8 +/- 10.6 kg/m2, current body mass index of 32.4 +/- 8.6, change in body mass index of 20.4 +/- 6.5, daily protein intake of 56.9 +/- 18.5 g, and mean exercise of 3.7 days/week. The mean change in body mass index for the bariatric surgery group was 20.9 +/- 6.4 versus 15.9 +/- 6.8 for the self-weight loss group (p = 0.01). Age correlated directly with current body mass index (p = 0.0031) and inversely with exercise (p = 0.0003). Change in body mass index was related to younger age (p = 0.0455), maximum body mass index (p < 0.0001), and bariatric surgery (p = 0.0016), but not protein intake. Exercise five or more times per week was associated with a larger change in body mass index and lower current body mass index (p < 0.0036) than exercising two or fewer times per week (p = 0.0292).

CONCLUSIONS

Frequent exercise optimizes body mass index at the time of presentation for body contouring surgery. Further evaluation of the elements of diet will be required to determine its role. Thus, comprehensive post-bariatric surgery or lifestyle programs that promote exercise may increase surgical options and optimize results in body contouring surgery.

Management of upper abdominal laxity after massive weight loss: reverse abdominoplasty and inframammary fold reconstruction

BACKGROUND

Central to body contouring after weight loss surgery is treatment of the abdominal region, often through a circumferential abdominoplasty. This procedure, however, neglects the laxity of the lower thoracic/upper abdominal region. A reverse abdominoplasty with reconstruction of a new inframammary fold (IMF) corrects this deformity through removal of excess skin along the IMF. Since 2002, we have performed 88 reverse abdominoplasty procedures within the context of a single or staged total-body lift (TBL).

METHODS

A retrospective chart review of 129 TBL cases indicated that 88 patients had a combined or staged reverse abdominoplasty and circumferential abdominoplasty. Complication rates were noted as localized or generalized.

RESULTS

Fifty-three of our patients had combined reverse abdominoplasty and circumferential abdominoplasty and 35 had the reverse abdominoplasty during a second stage. The complication rates for both groups were about 5% per patient per procedure with differences that were not statistically significant. Also, the revision rates for reverse abdominoplasty and circumferential abdominoplasty were similar for both groups, indicating patient satisfaction with the procedures.

CONCLUSION

In selected patients, effective treatment of the abdominal region demands correction of both the upper and lower abdominal laxity and contour. This can be performed safely, effectively, and reliably by a reverse abdominoplasty with IMF reconstruction independently or simultaneously with circumferential abdominoplasty.

Multiple procedures and staging in the massive weight loss population

BACKGROUND

Unlike traditional plastic surgery patients who present with a specific anatomical complaint, massive weight loss patients often have multiple regions of concern. No single procedure can address the whole-body deformities associated with massive weight loss. The authors sought to quantify their clinical experience to provide evidence-based analysis of procedural combination in body contouring.

METHODS

Patients were enrolled in an institutional review board-approved prospective clinical database over a 5-year period. Procedure categories included breast, medial thigh lift, buttock and lateral thigh lift, upper back lift, brachioplasty, and abdomen. Analysis of variance was used to analyze differences between procedure combinations.

RESULTS

Six hundred nine massive weight loss patients underwent 661 cases involving 1070 procedures. Length of hospital stay increased with the number of procedures performed (p < 0.001). Second-stage cases (n = 60) had similar complication rates and length of hospital stay. Seroma and dehiscence were strongly correlated with the number of procedures (p < 0.001), as were tissue necrosis and infection (p = 0.02), whereas hematoma was unrelated (p = 0.25). Major complications did not increase in multiple-procedure cases.

CONCLUSIONS

In a large experience at a high-volume center, concomitant procedures were performed safely in carefully selected patients with low major complication rates. Although aggregate minor complication rates were predictably higher than in single-procedure cases, there was no significant increase on a per-procedure basis. Multiple procedures can be combined safely in the body contouring patient, with surgical staging offering a viable alternative for patients who are unable to undergo combined procedures.

A comparative analysis and systematic review of the wound-healing milieu: implications for body contouring after massive weight loss

BACKGROUND

Wound-healing complications following body contouring for massive weight loss patients are significant, with rates exceeding 40 percent. To better understand aberrant healing in this population, the authors have performed a comparative analysis of the wound milieu literature for patient populations with similar complication rates.

METHODS

PubMed and Ovid databases were reviewed from January of 1985 to January of 2009 for key terms, including wound healing, obesity, cancer, burn, transplant, and body contouring. Serum and wound levels of multiple factors, including matrix metalloproteinases (MMPs) and cytokines, were assessed.

RESULTS

Complication rates in body contouring surgery range from 31 to 66 percent. Sixty-five studies were reviewed, and wound-healing complication rates were identified for cancer (45.8 percent), burn (30.4 percent), posttransplant (36 percent), and obese (43 percent) populations. In these groups, matrix metalloproteinases and tissue inhibitors of metalloproteinase (TIMPs) help regulate wound repair. Matrix metalloproteinase levels were elevated in cancer (4-fold increase in MMP-2), burn (20- to 30-fold increase in MMP-9), transplant (1.4-fold increase in MMP-2), and obese/chronic (79-fold increase) populations. TIMPs were increased in cancer (1.9-fold increase in TIMP-2) and burn (1.4-fold increase in TIMP-1) patients but decreased in chronic wound (55-fold decrease in TIMP-1) populations. Alterations to these regulatory proteins lead to prolonged matrix degradation, up-regulation of inflammatory mediators, and decreased growth factors, delaying the wound-healing process.

CONCLUSIONS

Complications after body contouring surgery are likely multifactorial; however, molecular imbalances to the massive weight loss wound milieu may contribute to poor surgical outcomes. Examining wound regulatory proteins including transforming growth factor-beta, vascular endothelial growth factor, and matrix metalloproteinases could aid in understanding the healing difficulties observed clinically.

Sciatic neuropathy after body contouring surgery in massive weight loss patients

To date, obesity affects a substantial population in industrialised countries. Due to the increased awareness of obesity-related morbidity, efficient dietary regimens and the recent successes with bariatric surgery, there is now a high demand for body contouring surgery to correct skin abundancies after massive weight loss. The known risks for this type of surgery are mainly wound-healing complications, and, more rarely, thromboembolic or respiratory complications. We present two female patients (23 and 39 years of age) who, in spite of standard positioning and precautions, developed sciatic neuropathy after combined body contouring procedures, including abdominoplasty and inner thigh lift. Complete functional loss of the sciatic nerve was found by clinical and electroneurographic examination on the left side in patient one and bilaterally in patient two. Full nerve conductance recovery was obtained after 6 months in both patients. Although the occurrence of spontaneous neuropathies after heavy weight loss is well documented, this is the first report describing the appearance of such a phenomenon following body contouring surgery. One theoretical explanation may be the compression of the nerve during the semirecumbent positioning combined with hip flexion and abduction, which was required for abdominal closure and simultaneous access to the inner thighs. We advise to avoid this positioning and to include the risk of sciatic neuropathy in the routine preoperative information of patients scheduled for body contouring surgery after heavy weight loss.