The Aesthetic Items Scale: A Tool for the Evaluation of Aesthetic Outcome after Breast Reconstruction

Breast Reconstruction in Patients with Prior Breast Augmentation: Searching for the Optimal Reconstructive Option

Background and Objectives: Breast cancer in patients with prior breast augmentation poses unique challenges for detection, diagnosis, and management. Mastectomy rates are increasing, and patients with prior augmentation often have a lower body mass index, making autologous techniques unsuitable. This study aims to assess the best reconstructive option in patients with a history of subglandular or dual-plane breast augmentation. Materials and methods: A prospective analysis was conducted on patients who underwent breast reconstruction after mastectomy. Patients with subglandular or dual-plane breast augmentation were included. Patients were divided into submuscular breast reconstruction (Group 2) or prepectoral breast reconstruction (Group 1) groups. Demographic and surgical data were collected. Results: A total of 47 patients were included, with 23 in Group 1 and 24 in Group 2. Complications occurred in 11 patients (23.4%), with significant differences between groups. The most common complication was seroma formation. Implant loss occurred in 4.3% of cases in Group 1, while no implant loss was observed in Group 2. Patient-reported satisfaction scores were similar between groups at 12 months postoperatively. Conclusions: Subpectoral breast reconstruction with a tissue expander seems a safer and effective technique for patients with prior breast augmentation. It resulted in fewer complications. This approach should be considered as an option for breast reconstruction after mastectomy in this cohort of patients.

Clinical outcomes and patient-reported outcomes after oncoplastic breast surgery in breast cancer patients: A matched cohort study

BACKGROUND

Surgery is the recommended treatment for breast cancer, the most common cancer in women in Taiwan and the leading cause of cancer-related deaths. Although breast-conserving surgery (BCS) has good prognosis, in some cases, BCS may cause more significant deformities and interfere with the patient's psychosocial well-being. Oncoplastic breast surgery (OBS) is the treatment option in these cases. This study aimed to determine the outcomes of OBS and BCS regardless of clinical and patient-reported esthetic outcomes.

METHODS

Between 2015 and 2020, 50 patients who underwent OBS at our hospital after complete treatment were enrolled. With 1:2 matched ratios, 100 patients were enrolled in the BCS control group. Clinical outcomes were analyzed. The BREAST-Q questionnaire was then assessed 6 months after the completion of treatment for subjective patient-reported outcomes.

RESULTS

Due to the matching process, no difference was noted between the two groups in terms of demographic data such as age, comorbidities, or tumor characteristics. There were no significant differences in the local recurrence rate, disease-free survival, overall survival, positive margin rate, rewide excision rate, conversion to mastectomy rate, or complication rate (major or minor) between both groups. However, the OBS group showed higher satisfaction with breasts in the BREAST-Q questionnaire ( p < 0.001). The mean follow-up time was 38.77 ± 14.70 months in the BCS group and 29.59 ± 14.06 months in the OBS group.

CONCLUSION

OBS seems to be a safe and feasible surgery in breast cancer patients because clinical outcomes are compatible with BCS. Moreover, the OBS group had better patient-reported outcomes in terms of satisfaction.

Aesthetic and surgical outcomes of the modified matrix rotation technique for upper inner quadrant breast tumors: a case series

In patients with breast cancer, oncoplastic breast-conserving surgery can achieve a good aesthetic outcome without compromising oncological outcomes. However, tumors located in the upper inner quadrant (UIQ) are challenging for surgeons because treatment gives rise to visible scars, glandular deformities, and deviation of the nipple-areolar complex. The present study was performed to analyze a modification of the matrix rotation technique for UIQ tumors and address the main drawback of this technique, which is a visible scar on the commonly exposed part of the breast. A prospective database of seven patients who presented with UIQ tumors and underwent the new modification technique was utilized for the analysis. All patients preferred the modified technique over the standard technique because of the absence of a scar in the UIQ (visible breast line). The postoperative patient-reported outcomes regarding breast shape, breast symmetry, and scar location were also satisfactory. No surgical complications were reported. This modified surgical technique results in a scarless UIQ and is an aesthetically acceptable procedure that can be considered for UIQ tumors.

Fat-Augmented Latissimus Dorsi Flap for Secondary Breast Reconstruction in Small to Medium-Sized Irradiated Breasts

BACKGROUND

Secondary breast reconstruction (BR) is recognized as a challenging procedure, particularly when radiotherapy (RT) has previously been performed. The aim of this study was to compare operative data and aesthetic outcomes between secondary irradiated and immediate BR using the fat-augmented latissimus dorsi (FALD) flap.

METHODS

The authors conducted a prospective clinical study between September of 2020 and September of 2021. Patients were divided into two groups: group A included secondary BR using the FALD flap in previously irradiated breasts, and group B included immediate BR with the FALD flap. Demographics and surgical data were compared, and an aesthetic analysis was performed. Chi-square and t tests were performed for categorical and continuous variables, respectively.

RESULTS

Twenty cases of FALD flap-based BR for each group were included. The two groups were found to be homogeneous for the demographic variables. The difference in mean operative time (263.1 minutes versus 265.1 minutes; P = 0.467) and complications ( P = 0.633) between the two groups were not significant. There was statistically significant difference in term of immediate fat grafting volume in favor of group A (218.2 cc versus 133.0 cc; P < 0.0001). Regarding aesthetic outcomes, the mean global score evaluation showed no statistically significant differences between groups (17.86 versus 18.21; P = 0.209).

CONCLUSIONS

The authors' study states that the FALD flap can be considered a reliable procedure for secondary reconstruction in previously irradiated breasts, although it is not indicated for patients with larger breasts. This surgical technique allowed us to achieve a totally autologous BR with good aesthetic results and low complication rates, even in secondary irradiated cases.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, II.

Oncoplastic breast conserving surgery versus standard breast conserving surgery for early and locally advanced breast cancer: a retrospective analysis from Sri Lanka

BACKGROUND

Breast aesthetics is becoming increasingly important in breast cancer surgery due to changes in patient expectations and greater emphasis been placed on the psychosocial outcomes. Studies have shown no difference in local recurrence risk between mastectomy and breast conserving surgery (BCS) and also a higher overall survival rate after BCS. Breast preservation improves the quality of life substantially compared to mastectomy. Oncoplastic breast-conserving surgery (O-BCS) involves tumour excision whilst overcoming the limitations of standard breast conserving surgery (S-BCS) by allowing larger resection volumes, avoiding deformities with better aesthetic results. Our study aims to compare the oncosurgical and aesthetic outcomes of O-BCS versus S-BCS among women in Sri Lanka.

METHODS

We conducted a retrospective study over a 4-year period including patients who underwent breast conservation surgery for primary non-metastatic breast cancer in two tertiary care units. We assessed outcomes in terms of re-excision rates, resection margin, complications and aesthetic outcomes using a Likert scale questionnaire to grade specific outcomes such as symmetry, volume, nipple position, scar visibility. Non-parametric tests were used for statistical analyses.

RESULTS

Fifty-four and seventy-three patients underwent S-BCS and O-BCS respectively. The median specimen volume and the maximum tumour diameter were significantly higher in O-BCS [160(range:65-220); 4.2(range: 1.2-5.2)] compared to S-BCS [65(range:45-86); 2.4(range: 1.0-2.6)]. The median closest tumour margin was 16 mm (range:4-25 mm) in O-BCS while 6 mm (range:<1 - 12 mm) in S-BCS (p = 0.01). Close (< 1 mm) and positive margins needing re-excision were seen mostly in S-BCS. Superior aesthetic outcomes with statistical significant difference were reported in the O-BCS compared to S-BCS group with better symmetry, volume, nipple position and scar visibility. The re-excision rates were significantly lower in O-BCS group. There was no significant difference in the operative time and complications while the aesthetic outcomes were significantly superior in OBCS.

CONCLUSIONS

Overall, Level 2 perforator flap based reconstruction had superior aesthetic outcomes. O-BCS is safe and more aesthetically acceptable with no difference in oncological outcome and operative time. More consideration should be given to aesthetic parameters such as scar visibility, nipple position, breast volume and shape when considering the best surgical option for the patients.

The Ergonomic FALD Flap for One-stage Total Breast Reconstruction

Background

The fat-augmented latissimus dorsi (FALD) flap combines this pedicled flap with immediate intraoperative fat transfer. Very little is described concerning its inset at the mammary site. Our efforts have concentrated on seeking the best flap orientation and skin-adipose paddle shaping, to improve the aesthetic outcome and to obtain a complete breast reconstruction (BR) in one stage.

Methods

A prospective clinical study was performed in patients who underwent BR with FALD flaps, between December 2020 and March 2022. Patients were randomly enrolled into two groups: ergonomic inset of the FALD flap with vertical orientation of the skin-adipose paddle (group A) and FALD flap with traditional horizontal paddle orientation (group B). The study's endpoints were the evaluation of the aesthetic outcomes (from patients' and surgeon's perspectives) and complications.

Results

Thirty-two FALD flaps (23 patients) were performed for group A, and 31 FALD flaps (25 patients) for group B. The two groups were homogeneous in terms of demographic and surgical data (P > 0.05). The overall complication rate was homogeneous among the groups, without statistically significant differences (P = 1.00). The surgeon's assessments showed a statistically significant superior aesthetic outcome in group A regarding volume, symmetry, and shape (P < 0.05). Higher satisfaction was observed in group A patients, in terms of breast size (P < 0.00001), shape (P = 0.0049), and overall satisfaction (P = 0.00061).

Conclusions

The ergonomic vertical FALD flap technique enables surgeons to perform one-stage total BR, with excellent breast projection and upper pole fullness. These refinements in flap shaping and molding reduced the need for further autologous fat transfer, obtaining a brilliant totally autologous BR without the need for microsurgical experience.

How Does Reduction Mammaplasty Surgical Technique Impact Clinical, Aesthetic, and Patient-Reported Outcomes?: A Comparison of the Superomedial and Inferior Pedicle Techniques

BACKGROUND

A comprehensive comparison of surgical, aesthetic, and quality of life outcomes by reduction mammaplasty technique does not exist. We sought to ascertain the effect of technique on clinical, aesthetic, and patient-reported outcomes.

METHODS

Patients with symptomatic macromastia undergoing a superomedial or inferior pedicle reduction mammoplasty by a single surgeon were identified. BREAST-Q surveys were administered. Postoperative breast aesthetics were assessed in 50 matched-patients. Patient characteristics, complications, quality of life, and aesthetic scores were analyzed.

RESULTS

Overall, 101 patients underwent reductions; 60.3% had a superomedial pedicle. Superomedial pedicle patients were more likely to have grade 3 ptosis (P < 0.01) and had significantly shorter procedure time (P < 0.01). Only the inferior pedicle technique resulted in wound dehiscence (P = 0.03) and reoperations from complications (P < 0.01). Those who underwent an inferior pedicle reduction were 4.3 times more likely to experience a postoperative complication (P = 0.03). No differences in quality of life existed between cohorts (P > 0.05). Superomedial pedicle patients received significantly better scarring scores (P = 0.03).

CONCLUSIONS

The superomedial pedicle reduction mammoplasty technique provides clinical and aesthetic benefits compared with the inferior pedicle technique.

An updated systematic review of esthetic grading tools in postmastectomy breast reconstruction

BACKGROUND AND OBJECTIVES

We ascertained whether a validated esthetic grading tool for breast reconstruction had been developed and widely adopted since the last published systematic review on the topic from 2015.

METHODS

We performed a systematic review identifying all studies using a grading tool to assess breast reconstruction, using search terms associated with all types of breast surgery and outcomes research. Articles were assessed for patient number, validated scale use, assessor type and training, assessor blinding, assessment method, scoring system type, type and timing of reconstruction, and usage of corroborating scales.

RESULTS

Of 2809 articles screened, 148 met the criteria. Only 3 used a validated tool, the Esthetic Items Scale. Most used study-only tools (n = 111) or unvalidated tools (n = 28). The most used unvalidated tool was the Garbay/Lowery 5-subscale rubric. Unanchored Likert scales were the most common subjective tool; two-dimensional images were the most used medium. Surgeons, patients, and nurses were the most common assessors. Twenty percent of studies used corroborating scales.

CONCLUSIONS

In the absence of a validated esthetic grading tool for breast reconstruction, researchers continue to rely on unvalidated scales. The only validated scale available is used infrequently and only validated among physicians. A validated, reliable, simple grading tool with clinical and scholastic relevance is needed.

Sample size recommendations for studies on reliability and measurement error: an online application based on simulation studies

Simulation studies were performed to investigate for which conditions of sample size of patients (n) and number of repeated measurements (k) (e.g., raters) the optimal (i.e., balance between precise and efficient) estimations of intraclass correlation coefficients (ICCs) and standard error of measurements (SEMs) can be achieved. Subsequently, we developed an online application that shows the implications for decisions about sample sizes in reliability studies. We simulated scores for repeated measurements of patients, based on different conditions of n, k, the correlation between scores on repeated measurements (r), the variance between patients’ test scores (v), and the presence of systematic differences within k. The performance of the reliability parameters (based on one-way and two-way effects models) was determined by the calculation of bias, mean squared error (MSE), and coverage and width of the confidence intervals (CI). We showed that the gain in precision (i.e., largest change in MSE) of the ICC and SEM parameters diminishes at larger values of n or k. Next, we showed that the correlation and the presence of systematic differences have most influence on the MSE values, the coverage and the CI width. This influence differed between the models. As measurements can be expensive and burdensome for patients and professionals, we recommend to use an efficient design, in terms of the sample size and number of repeated measurements to come to precise ICC and SEM estimates. Utilizing the results, a user-friendly online application is developed to decide upon the optimal design, as ‘one size fits all’ doesn’t hold.

Correlation between acellular dermal matrix (ADM) volume and breast implant size selection among patients undergoing prepectoral direct-to-implant (DTI) breast reconstruction using complete ADM

BACKGROUND

In prepectoral direct-to-implant breast reconstruction using the acellular dermal matrix (ADM)-assisted technique, breast volume asymmetry can occur. We hypothesized that ADM size influences implant size selection in prepectoral breast reconstruction with implant coverage using an ADM. We investigated factors influencing implant size selection and provide guidelines for surgeons.

METHODS

A retrospective chart review was performed to identify all patients who underwent prepectoral direct-to-implant breast reconstruction between January 2017 and October 2020. We assessed patient characteristics, preoperative expected implant volume, ADM size, volume of implant used in surgery, and symmetry scale of aesthetic item scale (AIS) 6 months after surgery. We compared the symmetry score of AIS between a group in which the preoperative expected silicone implant size (ES) was used and a group in which a silicone implant of a smaller size than planned (SS) was used.

RESULTS

Patient characteristics, including age, body mass index (BMI), and excised breast volume, were similar between the groups (P > .05). ADM size had a significant effect on implant size selection (odds ratio = 1.760, P < .01). The symmetry score of AIS was higher in the SS group.

CONCLUSIONS

ADM size must be considered when selecting implant size in prepectoral direct-to-implant breast reconstruction using the ADM-assisted technique.

"Tear-Drop Appearance" Wrap: A Novel Implant Coverage Method for Creating Natural Contour in Prepectoral Prosthetic-Based Breast Reconstruction

Various implant wrapping methods with acellular dermal matrix (ADM) have been introduced, but most focus on random trimming and suturing aimed to maximize implant coverage. Here we present our clinical experience using a “tear-drop appearance” wrapping method to achieve natural contours through upper pole volume replacement. We retrospectively reviewed the data of 56 consecutive cases of prepectoral prosthetic-based breast reconstruction (PPBR) using this wrapping method following nipple-sparing mastectomy between March 2020 and June 2021. The “tear-drop appearance” wrapping design creates an anatomical tear-drop–shaped pocket to encourage lower pole fullness and create a natural contour through upper pole volume replacement by ADM. Patients’ baseline characteristics, operative data, and complications were analyzed. Aesthetic outcomes were measured using the BREAST-Q and Aesthetic Item Scale (AIS). A successful reconstruction was achieved without major complications and using a single ADM sheet. Four types and three sizes of ADMs were used. The mean resected breast tissue weight was 274.3 g, while the mean implant volume was 230.0 cc. The average BREAST-Q and AIS scores were 4.6 ± 0.8 and 4.5 ± 0.7, respectively. Owing to its simplicity, reproducibility, and effectivity, this method is an excellent implant coverage option that achieves a natural contour in PPBR.

The Use of Validated Visual Scales in Plastic Surgery: Where Are We Now?

BACKGROUND

The assessment of the human body, whether for aesthetic or reconstructive purposes, is an inherently visual endeavor. Ideally, reproducible, prompt, and cost-effective systems of visual evaluation would exist that can provide validated assessments of the aesthetic endpoints of treatment. One method to accomplish a standardization of the appreciation of visual endpoints is the use of visual scales. The goal of this systematic review is to summarize and evaluate the use of validated visual scales within aesthetic medicine, dermatology, and plastic and reconstructive surgery.

METHODS

A literature search was performed with a defined search strategy and extensive manual screening process. The Medical Outcomes Trust guidelines for visual scales in medicine were used, with special attention paid to each study's validation metrics. The review process identified 44 publications with validation data of sufficient quality from an initial survey of 27,745 articles. All rating scales based on imaging other than standardized clinical photographs were excluded.

RESULTS

The review demonstrates that validated visual assessment in plastic surgery is incomplete. Within specific subfields of aesthetic medicine and dermatology, many of the ( n = 20) facial aging scales were well-validated and demonstrated high reliability. Publications ( n = 8) focused on the evaluation of facial clefts demonstrated heterogeneity in the methods of validation and in overall reliability. Within the areas of breast surgery ( n = 9), body contouring ( n = 2), and scarring ( n = 5), the scales were variable in the methods used and the validation procedures were diverse. Scales using a visual guide tended to have better interrater (kappa = 0.75) and intrarater reliability (kappa = 0.78), regardless of the specific area of interest.

CONCLUSIONS

The fields of aesthetic medicine, and aesthetic and reconstructive plastic surgery require assessment of visual states over time and between many observers. For these reasons, the development of validated and reliable methods of visual assessment are critical. Until recently, the use of these tools has been limited by their time-consuming nature and cost.

A Novel Validated Breast Aesthetic Scale

BACKGROUND

Breast aesthetics impacts patients' quality of life after breast reconstruction, but patients and surgeons frequently disagree on the final aesthetic evaluation. The need for a comprehensive, validated tool to evaluate breast aesthetics independently from the patient motivated this study.

METHODS

The 13-item Validated Breast Aesthetic Scale was developed after several internal meetings, and worded to be understood by a nonspecialist. Three items are common for both breasts, with the remaining being side-specific. To test the internal consistency of the scale subitems, postoperative photographs after different breast reconstruction techniques were graded by a six-member panel. To test interrater and intrarater correlation across time, four physicians evaluated the results of abdominally based breast reconstructions following nipple-sparing mastectomies.

RESULTS

Graded aesthetic outcomes of 53 patients showed that the Cronbach alpha of the subitems of the scale was 0.926, with no single item that, if excluded, would increase it. Twenty-two patients underwent aesthetic outcomes grading at four different time points. The mean overall appearance was 3.71 ± 0.62. The mean grade for overall nipple appearance was 4.0 ± 0.57. The coefficient alpha of the panel overall aesthetic grade across different time points was 0.957; whereas intragrader reliability for graders 1 through 4 individually showed alpha coefficients of 0.894, 0.9, 0.898, and 0.688, respectively. Similar results were found for the other items of the scale.

CONCLUSIONS

The proposed aesthetic scale evaluates different aspects of the breast reconstruction aesthetic result with excellent internal consistency among its subitems. Grading by a gender-balanced, diverse four-member panel using postoperative photographs showed higher reliability and reproducibility compared to single graders.

Review of 107 Oncoplastic Surgeries Using an Acellular Dermal Matrix with the Round Block Technique

The round block technique (RBT) is an oncoplastic surgery method that uses volume displacement techniques after partial mastectomy. However, cosmetic problems occur after tissue rearrangement in patients with small breasts or those in whom a large amount of breast tissue is excised. Therefore, we used an acellular dermal matrix (ADM) when the volume was insufficient after tissue rearrangement. Patients who underwent breast reconstruction using the ADM with the RBT after breast-conserving surgery (BCS) were included. The ADM graft was performed in two layers. First, it was placed on the glandular flap, and the patient was then seated to ascertain the degree of deformity. If the volume was insufficient, a graft was also performed under the skin flap. Overall, 107 oncoplastic surgeries were performed. Tumors were most commonly located in the upper outer quadrant of the breast, and the mean resected breast tissue was 27.1 g. Seroma was the most common complication, but it improved with several aspirations. There were no major complications or cosmetic problems requiring reoperation. Therefore, if the ADM was used for defects that could not be reconstructed with the RBT alone, safe and cosmetically good results could be obtained.

The Effect of Biological Scaffold (Biodesign) in Postmastectomy Direct-to-Implant Breast Reconstruction: A 5-Year Single-Institution Experience

BACKGROUND

Direct-to-implant (DTI) breast reconstruction is one of the immediate implant-based breast reconstruction methods. If the amount of soft tissue (eg, muscle or fascia) is insufficient to completely cover the implant, biological scaffold or acellular dermal matrix can be safely used for implant coverage. In this study, we used an acellular porcine small intestinal submucosa (SIS) mesh (Biodesign; Cook Medical Inc, Bloomington, IN) for DTI reconstruction to explore the impact of its use on breast reconstruction results.

METHODS

We retrospectively assessed cases involving DTI reconstruction at Taipei Veterans General Hospital from 2015 to 2019. Women, 18 years or older, who underwent immediate DTI reconstruction after mastectomy were included in the study. Mastectomy may have been performed because of therapeutic or prophylactic reasons. Patients who did and did not use SIS mesh for reconstruction were studied separately, and the 2 groups were compared in terms of clinical outcomes and complications. The validated, self-administered BREAST-Q Reconstruction Module version 2.0 survey was used to evaluate health-related quality of life and satisfaction among patients who underwent breast reconstruction.

RESULTS

A total of 30 DTI breast reconstructions were enrolled. The mean age was 49.2 years, and the mean body mass index was 22.3 kg/m2. The mean postoperative follow-up duration was 17.1 months. Nipple-sparing mastectomy was performed for 26 cases (86.7%), and DTI breast reconstructions using SIS mesh for implant coverage were done in 14 cases (46.7%). The overall complication rate was 53.3% in 30 reconstructions, with nipple complications being the most common complication. The non-SIS and SIS-using groups had a similar overall complication rate postoperatively. As for the quality-of-life assessment, the SIS group obtained a higher score on BREAST-Q than those for whom SIS was not used.

CONCLUSIONS

Porcine SIS mesh might be a safe and effective alternative to biological scaffolds in immediate 1-stage implant-based breast reconstruction to improve the quality of life after surgery.

Comparison of a Novel Silicone Gel Wound Dressing vs Bacitracin After Follicular Unit Extraction Hair Transplantation

BACKGROUND

Follicular unit extraction (FUE) hair transplantation subjects are excellent candidates to assess wound dressings. The wound surface area is large and adequately delineated to allow randomization, while in-patient split scalp designs allow patients to serve as their own controls.

OBJECTIVES

This randomized, single-blinded, split-scalp comparison trial compares a novel, film-forming silicone gel-Stratamed (SM; Stratpharma AG, Basel, Switzerland)-to Bacitracin (Bac; McKesson Medical-Surgical Inc., Richmond, VA) in subjects undergoing FUE.

METHODS

Twenty subjects were randomized to receive SM and Bac on alternating sides of the scalp. Primary outcome measures included blinded clinician assessments of edema, erythema, crusting, healing response and outcome preference. Secondary measures included subject-reported assessments of pain and pruritis as well as FaceQ scores taken at post-FUE days two through six.

RESULTS

Twenty subjects were enrolled. Nineteen completed the trial. All subjects were non-smokers, and none had medical comorbidities expected to impact wound healing. An average of 1778 follicles per subject were harvested. No adverse events were reported, and all subjects healed by day 7. Healing response and outcome preference were significantly higher at day 1 in the SM group and by day 7, both groups were similar. There were no significant differences between groups for edema, erythema, or crusting. There were no significant differences between groups for subject-reported outcomes of pain, pruritis, or FACE-Q scores. When asked which product they preferred using, 44% of subjects preferred using SM versus 22% who preferred Bac.

CONCLUSIONS

The SM wound dressing was well-tolerated in patients undergoing FUE. SM may speed the healing response in the early phase of wound healing.

LEVEL OF EVIDENCE 2

Evaluation of the Surgical Outcomes of Breast Oncoplastic Techniques Carried Out by a General Surgical Oncologist

Background 

With recent advances in different breast cancer treatment modalities, breast conservation surgery (BCS) has gained popularity and has become the mainstay for the treatment of early breast cancer. The model of dedicated breast surgeons working in breast units is standard in some but not all countries. We have aimed to define surgical outcomes of oncoplastic breast surgery carried out by one general surgical oncologist.

Patients and methods

We have conducted a prospective non-randomised case series analysis to assess the oncologic and aesthetic outcome of tissue displacement oncoplastic breast techniques in managing unifocal early-stage breast cancer from January 2019 to January 2020.

One surgical oncologist with 23 years of surgical oncology experience carried out all operations.

Results

We have included 50 female patients treated with variant oncoplastic volume displacement techniques. We have used the round block technique in 20%, the batwing technique in 18%, lateral mammoplasty in 20%, and medial mammoplasty in 2%. We have also carried out wise pattern therapeutic mammoplasty with inferior pedicle in 20% (10 patients), and vertical mammoplasty with superior pedicle in 20% (10 patients).

While 8% of our patients had Clavien-Dindo system grade I Immediate complications, including the surgical site infection and postoperative seroma and haematoma, 2% of patients had grade II complications in the form of partial areola and nipple complex necrosis leading to delayed wound healing requiring secondary suturing. No delayed complications or mortalities were recorded.

Eight per cent of patients required re-excision to clear margins, 74% had excellent results, 24% had good results, and 2% had fair results. In addition, 64% were very satisfied with their results, 32% were satisfied, while 4% were not satisfied with aesthetic results.

Conclusion

Based on our limited number of patients, we have found that tissue displacement oncoplastic techniques carried out by a general surgical oncologist are safe and reliable in providing satisfactory oncological outcomes with a low risk of delaying adjuvant therapy and acceptable aesthetic outcomes.

The First Use of Human-Derived ADM in Prepectoral Direct-to-Implant Breast Reconstruction after Skin-Reducing Mastectomy

INTRODUCTION

Large and ptotic breasts always represented a great reconstructive challenge for plastic surgeons. In order to deal with these patients, we started performing Wise-pattern skin-reducing mastectomies (SRM) followed by direct-to-implant breast reconstructions (DTI-BR) in the prepectoral space where the implants were covered with the autologous adipo-dermal flap and a human acellular dermal matrix called MODA.

MATERIALS AND METHOD

We retrospectively reviewed all patients that underwent Wise-pattern SRM followed by MODA-assisted, prepectoral, DTI-BR between January 2017 and November 2019 at our Institution. Inclusion criteria were large ptotic breast and pinch test >2cm, while exclusion criteria were smoking >10 cigarettes/day, history of prior radiotherapy, patients supposedly requiring breast implants bigger than 550cc or post-mastectomy radiotherapy. Patients' data were collected through their electronic medical records. Both short- and long-term outcomes were reported.

RESULTS

Seventeen patients underwent Wise-pattern SRM followed by MODA-assisted, prepectoral, DTI-BR for a total of twenty-one breast reconstruction and fourteen matching procedures. Mean follow-up was 13.4 months (SD= ±3.67). No major complication was reported. Three (14.3%) reconstructed breasts had minor complications: 2 (9.5%) minimal (<1cm²) wound dehiscence and 1 (4.8%) de-epithelization of the skin at the T junction that were treated conservatively. Drainages gave mean output of 410.59 ml (SD= ±214.83) and were kept in place on average for 8.59 days (SD= ±3.45).

CONCLUSION

Few are the reports in the literature regarding DTI-BR following SRM and even fewer are those where BR was performed in the prepectoral space. Our work demonstrated the safety of prepectoral DTI-BR following SRM in selected patients in accordance with the "conservative reconstruction" principles. Furthermore, we confirmed the reliability of MODA in accordance with previously published works.

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 .

Use of Absorbable Dermal Stapler in Reduction Mammoplasty: Assessing Technical, Quality-of-Life, and Aesthetics Outcomes

Introduction:

Reduction mammaplasty is a mainstay in the treatment of symptomatic macromastia, with a well-described positive impact on patient quality-of-life (QoL). Absorbable dermal staplers have the potential to improve the efficiency of skin closure in reduction mammoplasties, but a more comprehensive assessment of its impact on key outcomes has not been fully elucidated.

Methods:

A retrospective review of patients undergoing reduction mammoplasty between November 2018 and December 2020 was conducted. Patients were included if they had undergone a wise-pattern reduction with a superomedial pedicle and completed 3 months of follow-up. Patient demographics, operative information, clinical and aesthetic outcomes, and QoL were compared between patients that had INSORB stapler-assisted and suture-only closures.

Results:

Seventy-five patients met the inclusion criteria, with 34 patients (45%) in the stapler cohort. Total procedure time was significantly reduced with the use of the dermal stapler (stapler: 154 vs. suture: 170 minutes; p = 0.003). The incidence of major complications was similar between cohorts (stapler: 8.8% vs. suture: 12%; p = 0.64), as was the incidence of minor complications (stapler: 44% vs. suture: 41%; p = 0.82). Regardless of closure technique, patients demonstrated significant increases in all QoL domains (p <0.001). Lastly, 10 independent raters found no difference in the cosmetic appearance of breasts from either cohort, when judging overall breast appearance, shape, scars, volume and the nipple-areolar complex (all p > 0.05).

Conclusions:

The dermal stapler improves efficiency of closure during reduction mammoplasty without increasing the incidence of wound healing complications. Additionally, cosmetic outcomes are not affected, and patients demonstrate similar post-operative satisfaction with the result regardless of closure technique.

Aesthetic Outcomes of Perineal Reconstruction with the Lotus Petal Flap

The lotus petal flap can be applied for reconstruction of extensive defects in the vulvoperineal area. Studies on aesthetic outcomes are lacking. This study aimed to fill this gap.

Methods

All patients who underwent lotus petal flap reconstruction between October 2011 and December 2015 were asked permission to have their photographs used. Two questionnaires were used: (1) the Strasser score to assess the overall aesthetic results (range 0-15) and (2) the Patient and Observer Scar Assessment Scale (POSAS; range 6-60). Six plastic surgeons and 6 laymen filled in the Strasser score and the Observer scale of the POSAS. Patients filled in the Strasser score, the Patient scale of the POSAS and scored their overall satisfaction with the aesthetic results on a Likert scale (0-10).

Results

The photographs of 11 patients were included. The median Strasser score of all observers of 11.9 (range 0.0-75.0) indicated a mediocre aesthetic result. The median total POSAS score of 15.6 (range 6.0-41.0) indicated an aesthetically acceptable scar. Strasser and POSAS scores of the plastic surgeons and laymen did not differ significantly from the patients' scores. The patient satisfaction score with the aesthetic result was a median of 6.0 of 10.

Conclusions

The findings indicate that, overall, patients were moderately satisfied with the aesthetic results of their lotus petal flap reconstructions, as were the plastic surgeons and laymen. For clinical practice, it is important that the plastic surgeon manages expectations carefully before surgery, as it is possible that patients might experience a rather low aesthetic outcome after perineal reconstruction.

"Bifidus pedicle", The Use of Bilobed Superomedial Pedicle for Breast Reshaping Following Upper Outer Quadrantectomy: A New Oncoplastic Breast Surgery Technique

INTRODUCTION

The aim of this work was to describe our technique, the "Bifidus pedicle", which is a modification of the superomedial pedicle, for managing large breast cancers (BCs) in the upper outer quadrant (UOQ) in patients with medium/large breasts and associated ptosis. Observed complications, cosmetic outcome and oncologic safety were also reported.

MATERIALS AND METHODS

Thirty patients underwent our modification of the superomedial pedicle combined with a Wise skin resection pattern for large BCs in the UOQ. All patients underwent contralateral Wise pattern breast reduction/mastopexy for symmetry.

RESULTS

The average weight of the quadrantectomy specimen was 235 grams (range: 36-400 grams). Mean free tumour margin was 19.4 mm (range: 16-30). Mean operative time was 165 minutes (range: 150-220). Eight (13.2%) breasts had minor complications: two partial NAC necrosis, and six minimal wound dehiscences. Mean follow-up was 22 months (range: 12-30). Overall satisfaction rate was 91%; patients reported to be satisfied the most with the shape (92%) of the breasts, the achieved symmetry (94%), and the volume (85%), focusing on the fullness in the UOQ.

CONCLUSIONS

Our Bifidus pedicle allowed to fill even wide defects in the UOQ, because we selectively employed it in patients with medium to large ptotic breasts where the lower pole had enough tissue to be displaced. Satisfactory cosmetic and oncologic outcomes were achieved with low complication rate.

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 .

Immediate Reconstruction of Large Ptotic Breasts following Vertical Reduction Pattern Nipple-Sparing Mastectomy

Purpose

Women with large and/or ptotic breasts are generally not considered candidates for nipple-sparing mastectomy because of concerns regarding the high incidence of postoperative complications including ischemic complications. Therefore, we adopted a vertical skin resection technique for nipple-sparing mastectomy, and obtained satisfactory results following immediate autologous breast reconstruction. In this study, we aimed to describe our operative technique and review its outcomes.

Methods

Between January 2010 and March 2017, immediate autologous breast reconstructions were performed in 28 patients with moderate or large ptotic breasts after nipple-sparing mastectomy using the vertical reduction pattern. Grade II ptosis was observed in 12 patients, and 16 patients were classified as having grade III ptosis.

Results

Of the 28 patients, 21 received abdominal free flap reconstruction. In the remaining 7 patients, extended latissimus dorsi flaps were used in conjunction with anatomic implants. The mean weight of the excised breast tissue in the 2 groups was 575 g and 482 g, respectively. Satisfactory esthetic outcomes without major complications were achieved in all patients. Similar vertical reductions or mastopexies in the contralateral breast allowed better postoperative adjustment for symmetry. There was only 1 case of complete nipple necrosis; however, the problem was solved with “skin banking.” No local recurrences or distant metastases were detected at follow-up (mean 18 months, range 4 months to 6 years).

Conclusion

To enhance cosmetic outcomes in patients with large and/or ptotic breasts, the vertical skin resection pattern for nipple-sparing mastectomy can be used to achieve better breast shape while preserving the nipple-areola complex. Moreover, it can improve the esthetic outcome without compromising oncologic safety.

The Hybrid Latissimus Dorsi Flap in Immediate Breast Reconstruction: A Comparative Study With the Abdominal-Based Flap

PURPOSE

The implant-enhanced latissimus dorsi (LD) flap, or a hybrid LD flap, is widely used in certain indications, even though abdominal-based flaps are now considered the gold standard of autologous breast reconstruction. However, few articles distinguish the hybrid LD flap from traditional LD flaps, and not many articles have compared the surgical outcomes, with the abdominal-based flap procedure, especially in the area of immediate breast reconstruction. In addition, it is often overlooked that the reported esthetic comparisons are based on different populations and contralateral balancing procedures (CBPs). Thus, this study aimed to review the reconstruction outcomes and to compare the variable-matched esthetic outcomes between 2 groups.

METHODS

A retrospective review of patients who underwent immediate breast reconstruction with either a hybrid LD flap or an abdominal-based free flap and had completed at least 2 years of follow-up visits was carried out. The patient demographics, oncologic data, breast parameters, and postoperative outcomes were compared across the entire patient group. The body mass index (BMI)- and CBP-matched cohort was randomly selected and assessed using the Aesthetic Outcome parameter of the Aesthetic Item Scale.

RESULT

Thirty-eight hybrid LD flap and 51 abdominal-based free flap procedures were included. The hybrid LD group showed a shorter operation time (330 ± 260 minutes vs 550 ± 480 minutes, respectively; P < 0.01), and fewer patients in the hybrid LD group underwent additional revision surgeries (7 [18.4%] vs 20 [39.2%], respectively; P < 0.01). Other complication rates were not significantly different between groups. A BMI- and CBP-matched esthetic analysis revealed that the hybrid LD group showed superior results in symmetry (Mann-Whitney U test, P = 0.047).

CONCLUSIONS

The LD flap in combination with an implant remains a viable option in immediate breast reconstruction and had a similar complication profile while having a shorter operative time compared with the abdominal-based autologous breast reconstruction procedure. If properly used in certain populations, hybrid LD flaps may offer superior results regarding symmetry over the abdominal-based flap procedure.

Crowdsourced Assessment of Aesthetic Outcomes after Breast Reconstruction

BACKGROUND

Evaluating the aesthetic success of breast reconstruction can be difficult. Patients, surgeons, and the general population may differ in what constitutes a successful outcome. Recently, crowdsourcing has emerged to accumulate and analyze data on a massive scale. The authors propose that crowdsourcing can be a useful tool to reliably rate aesthetic outcomes of breast reconstruction.

METHODS

One hundred one deidentified photographs of patients at various stages of breast reconstruction were gathered. Assessment tools included a five-point Likert scale and the transverse rectus abdominis myocutaneous (TRAM) visual assessment scale. Anonymous crowd workers and a group of expert reconstructive surgeons rated an identical set of photographs on the Likert scale. Crowd workers also rated the set of photographs on the TRAM scale.

RESULTS

The authors obtained 901 anonymous, layperson evaluations on both Likert and TRAM scales. Crowdsourced assessment data collection took 28.6 hours. Expert assessment took 15 months. Expert and crowdsourced scores were equivalent on the Likert scale (overall interrater reliability, κ = 0.99; 95 percent CI, 0.98 to 0.99). Intrarater reliability among each subcomponent was highly reproducible for the crowd (r = 0.98; 95 percent CI, 0.97 to 0.99) and experts (r = 0.82; 95 percent CI, 0.77 to 0.87). Breast contour and positioning were most predictive of overall aesthetic result. Skin patch and scar were least predictive of overall aesthetic appearance.

CONCLUSIONS

Aesthetic outcomes rated by crowds were reliable and correlated closely with those by expert surgeons. Crowdsourcing can be a rapid, reliable, and valid way to assess aesthetic outcomes in the breast reconstruction patient.

Development of an online research platform for use in a large-scale multicentre study

Background

Participation in research can be beneficial for patients and healthcare providers, but may prove demanding at patient, clinician and organizational levels. Patient representatives are supportive of online research to overcome these challenges. The aim of this pilot study was to develop an online recruitment platform and test its feasibility and acceptability while evaluating the accuracy of participant-reported data.

Methods

The online research platform was developed in a 1-day ‘hackathon’ with a digital design company. Women who underwent implant-based breast reconstruction in 2011–2016 were invited by letter containing the web address (URL) of the study site and their unique study number. Once online, participants learned about the study, consented, entered data on demographics, treatment received and patient-reported outcome measures (BREAST-Q™), and booked an appointment for a single hospital visit for three-dimensional surface imaging (3D-SI). Real-time process evaluation was performed. The primary endpoint was recruitment rate.

Results

The recruitment rate was 40 per cent. Of the 100 women, 50 logged on to the platform and 40 completed the process through to 3D-SI. The majority of discontinuations after logging on occurred between consenting and entering demographics (3 women, 6 per cent), and between completing the BREAST-Q and booking an appointment for 3D-SI using the online calendar (3 women, 6 per cent). All women completed the online BREAST-Q™ once started. Participants took a median of 23 minutes to complete the online process. Patient-reported clinical data were accurate in 12 of 13 domains compared with electronic records (95 per cent concordance). Process evaluation demonstrated acceptability.

Conclusion

The results of this pilot demonstrate the online platform to be acceptable, feasible, and accurate for this population from a single institution. The low-burden design may enable participation from centres with less research support and participants from hard-to-reach groups or dispersed geographical locations, but with online access.

Long-Term Dynamic Changes in Cosmetic Outcomes and Patient Satisfaction after Implant-Based Postmastectomy Breast Reconstruction and Contralateral Mastopexy with or without an Ultrapro Mesh Sling Used for the Inner Bra Technique. A Retrospective Correlational Study

Simple Summary

Immediate implant-based postmastectomy breast reconstruction (IPMBR) with contralateral symmetrization has mostly short-term limited evidence of cosmetic outcomes. Ageing after IPMBR and symmetrization may contribute to symmetry worsening. This non-interventional retrospective correlational study presents the clinical and aesthetic results of synthetic ULTRAPRO^® mesh inner bra sling symmetrization mastopexy with standard mastopexies. A total of 59 patients were enrolled in the mesh group (MG), and 58 patients were enrolled in the non-mesh group (NMG). There were no significant differences in surgical complications (p = 0.521; chi-square. The median sternal notch-to-nipple distance difference was 1 cm in the MG and 3.5 cm in the NMG from the last follow-up, and the median nipple-to-inferior mammary fold distance differences were 0.5 cm and 0.75 cm. ULTRAPRO^® mesh sling symmetrization can be successfully used to decrease pseudoptosis and nipple down-migration, offering a safe alternative for long-lasting symmetry and high patient satisfaction.

Abstract

Immediate implant-based postmastectomy breast reconstruction (IPMBR) with contralateral symmetrization has mostly short-term limited evidence of cosmetic outcomes. Because 84% of early-stage breast cancer patients have overall survival of more than 10 years, reconstructed breast symmetry should provide long-lasting results and acceptable patient satisfaction. Ageing, changes in body weight, and biomechanical changes after IPMBR and symmetrization may contribute to symmetry worsening. This non-interventional single-centre retrospective correlational study presents the clinical and aesthetic results of synthetic ULTRAPRO^® mesh inner bra sling symmetrization mastopexy with standard mastopexies. According to the results, a total of 59 patients were enrolled in the mesh group (MG), and 58 patients were enrolled in the non-mesh group (NMG). There were no significant differences in surgical complications (p = 0.521; chi-square). The median sternal notch-to-nipple distance difference was 1 cm in the MG and 3.5 cm in the NMG from the last follow-up, and the median nipple-to-inferior mammary fold distance differences were 0.5 cm and 0.75 cm. The mesh did not hinder the follow-up investigation. In conclusion, ULTRAPRO^® mesh sling symmetrization can be successfully used to decrease pseudoptosis and nipple down-migration, offering a safe alternative for long-lasting symmetry and high patient satisfaction.

The Nipple Split Sharing vs. Conventional Nipple Graft Technique in Chest Wall Masculinization Surgery: Can We Improve Patient Satisfaction and Aesthetic Outcomes?

BACKGROUND

Double incision mastectomy with free nipple grafts (DIFNG) offers more flexible nipple-areola complex (NAC) resizing and repositioning in transmale and gender non-conforming individuals. The cis-male NAC has a smaller diameter, oval shape and lateral position. If nipple grafts are performed without having these considerations, aesthetics can be dissatisfying. We aim to describe the nipple split sharing technique during chest wall masculinization surgery comparing surgical, patient-reported outcomes (PRO) and aesthetic results with the conventional technique.

METHODS

This was a retrospective review of transmale patients who underwent DIFNG from January 2017 to January 2019. The cohort was divided into two groups: conventional and the splitting technique. Demographics, intraoperative and postoperative outcomes were recorded. In addition, PRO using Body-Q scale and aesthetic results using a Likert-based scale were analyzed.

RESULTS

Thirty-four patients (68 breasts) underwent DIFNG. A total of 32 breasts underwent the split nipple reconstruction approach, whereas 36 underwent conventional technique. Median patient age and BMI in the nipple sharing and conventional technique groups were 27 years and 35.4 kg/m², and 24 years and 32.2 kg/m², respectively. Differences on postoperative complications were not statistically significant. Patient satisfaction on nipples' module was 90.7% vs. 58.1% in the nipple sharing vs. conventional technique, respectively (p < 0.05). The nipple's masculine aspect, size, contour, position and scars were aesthetically superior to the split approach (p < 0.05).

CONCLUSION

Double incision mastectomy with nipple split sharing technique has good aesthetic outcomes, a low complication rate and high patient satisfaction. It is a great surgical alternative to improve aesthetics in chest wall masculinization surgery.

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 . Breast Surgery.

Prepectoral Two-Stage Implant-Based Breast Reconstruction with and without Acellular Dermal Matrix: Do We See a Difference?

BACKGROUND

Prepectoral implant-based breast reconstruction has gained popularity because of advantages over the subpectoral technique. Acellular dermal matrix use with implant-based breast reconstruction has become common because of its perceived superior aesthetic outcome. Matrices are expensive, however, and recent evidence has pointed to several potential complications. This article reports a series of prepectoral implant-based breast reconstructions with and without acellular dermal matrix and compared their outcomes.

METHODS

This is a single-surgeon retrospective review of patients who underwent staged prepectoral implant-based breast reconstruction following nipple-sparing mastectomy over two periods. Patients with well-perfused mastectomy skin flaps with a homogeneous thickness underwent reconstruction with acellular dermal matrix initially. On evolution of the practice, it was not used. Patient demographics, operative data, and complications were analyzed. Aesthetic outcome was measured by the BREAST-Q survey and the Aesthetic Item Scale. A cost analysis was also performed.

RESULTS

Forty patients were included (acellular dermal matrix group, n = 19; non-acellular dermal matrix group, n = 21). The nonmatrix group had one case (5 percent) of seroma and one case (5 percent) with hematoma; there were none in the acellular dermal matrix group. Average BREAST-Q and Aesthetic Item Scale scores were 82.3 versus 81.6 (p = 0.954) and 20.98 versus 20.43 (p = 0.640) for the matrix and nonmatrix groups, respectively. The direct cost savings for the authors' institution over 1 year if matrix was not used in all cases of implant-based breast reconstruction would be estimated at $3,105,960 to $6,211,920 for unilateral and bilateral cases, respectively, for Medicare reimbursement.

CONCLUSIONS

With adequate patient selection, acellular dermal matrix is not always required during two-stage prepectoral implant-based breast reconstruction for good aesthetic outcomes. The economic burden on patients and the health care system could be lessened with selective matrix use.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, III.

European survey on criteria of aesthetics for periodontal evaluation: The ESCAPE study

OBJECTIVE

The ESCAPE multicentre survey was designed to (a) compare the agreement of three relevant aesthetic scoring systems among different centres, and (b) evaluate the reproducibility of each question of the questionnaires.

MATERIALS AND METHODS

EFP centres (n = 14) were involved in an e-survey. Forty-two participants (28 teachers, 14 postgraduate students) were asked to score the one-year aesthetic outcomes of photographs using the Before-After Scoring System (BASS), the Pink Esthetic Score (PES) and the Root coverage Esthetic Score (RES). Mean values of kappa statistics performed on each question were provided to resume global agreement of each method.

RESULTS

Between teachers, a difference of kappa ≥ 0.41 (p = .01) was found for BASS (75%) and PES (57%). Similarly, RES (84%) and PES (57%) were different (p < .001). No difference was found between BASS (75%) and RES (84%). No difference was found between students, whatever the scoring system. Questions of each scoring system showed differences in their reproducibility.

CONCLUSIONS

The outcomes of this study indicate that BASS and RES scoring systems are reproducible tools to evaluate aesthetic after root coverage therapies between different centres. Among the various variables, lack of scar, degree of root coverage, colour match and gingival margin that follows the CEJ show the best reliability.

Quality of life and patient satisfaction after one-stage implant-based breast reconstruction with an acellular dermal matrix versus two-stage breast reconstruction (BRIOS): primary outcome of a randomised, controlled trial

BACKGROUND

There is increasing interest in the use of acellular dermal matrices (ADMs) in implant-based breast reconstruction (IBBR). Suggested advantages are that ADMs facilitate one-stage IBBR and improve aesthetic outcomes. We compared immediate one-stage ADM-assisted IBBR with two-stage IBBR (current standard of care). Our previously reported secondary endpoint showed that one-stage ADM-assisted IBBR was associated with significantly more adverse outcomes. Here, we present the primary endpoint results aiming to assess whether one-stage IBBR with ADM provides higher patient-reported quality of life (QOL) compared with two-stage IBBR.

METHODS

This multicentre, open-label, randomised controlled trial (BRIOS study) was done in eight hospitals in the Netherlands. We recruited women aged older than 18 years with breast carcinoma or a genetic predisposition who intended to undergo skin-sparing mastectomy and immediate IBBR. Participants were randomly assigned to undergo one-stage IBBR with ADM (Strattice, LifeCell, Branchburg, NJ, USA) or two-stage IBBR. Randomisation was stratified by centre and indication for surgery (oncological or prophylactic) in blocks of ten participants. The primary endpoint was patient-reported QOL, as measured with the BREAST-Q (ie, health-related QOL scales and satisfaction scales), in the modified intention-to-treat population. The study follow-up is complete. This study is registered with the Netherlands Trial Register, number NTR5446.

FINDINGS

Between April 14, 2013, and May 29, 2015, we enrolled 142 women, of whom 69 were randomly assigned to receive one-stage ADM-assisted IBBR and 73 to receive two-stage IBBR. After exclusions, the modified intention-to-treat population comprised 60 patients in the one-stage group and 61 patients in the two-stage group. Of these, 48 women (mean follow-up 17·0 months [SD 7·8]) in the one-stage group and 44 women (17·2 months [SD 6·7]) in the two-stage group completed the BREAST-Q at least 1 year after implant placement. We found no significant differences in postoperative patient-reported QOL domains, including physical wellbeing (one-stage mean 78·0 [SD 14·1] vs two-stage 79·3 [12·2], p=0·60), psychosocial wellbeing (72·6 [17·3] vs 72·8 [19·6], p=0·95), and sexual wellbeing (58·0 [17·0] vs 57·1 [19·5], p=0·82), or in the patient-reported satisfaction domains: satisfaction with breasts (63·4 [15·8] vs 60·3 [15·4], p=0·35) and satisfaction with outcome (72·8 [19·1] vs 67·8 [16·3], p=0·19).

INTERPRETATION

Taken together with our previously published findings, one-stage IBBR with ADM does not yield superior results in terms of patient-reported QOL compared with two-stage IBBR. Risks for adverse outcomes were significantly higher in the one-stage ADM group. Use of ADM for one-stage IBBM should be considered on a case-by-case basis.

FUNDING

Pink Ribbon, Nuts-Ohra, and LifeCell.

Specific agreement on dichotomous outcomes can be calculated for more than two raters

OBJECTIVE

For assessing interrater agreement, the concepts of observed agreement and specific agreement have been proposed. The situation of two raters and dichotomous outcomes has been described, whereas often, multiple raters are involved. We aim to extend it for more than two raters and examine how to calculate agreement estimates and 95% confidence intervals (CIs).

STUDY DESIGN AND SETTING

As an illustration, we used a reliability study that includes the scores of four plastic surgeons classifying photographs of breasts of 50 women after breast reconstruction into "satisfied" or "not satisfied." In a simulation study, we checked the hypothesized sample size for calculation of 95% CIs.

RESULTS

For m raters, all pairwise tables [ie, m (m - 1)/2] were summed. Then, the discordant cells were averaged before observed and specific agreements were calculated. The total number (N) in the summed table is m (m - 1)/2 times larger than the number of subjects (n), in the example, N = 300 compared to n = 50 subjects times m = 4 raters. A correction of n√(m - 1) was appropriate to find 95% CIs comparable to bootstrapped CIs.

CONCLUSION

The concept of observed agreement and specific agreement can be extended to more than two raters with a valid estimation of the 95% CIs.