Purpose
The number of breast cancer survivors continues to grow. Due to refinements in operating techniques, autologous breast reconstruction has become part of standard care. Impaired sensation ...remains a debilitating side effect with a significant impact on the quality of life. Microsurgical nerve coaptation of a sensory nerve has the potential to improve sensation of the reconstructed breast. This study investigates the effect of improved sensation of the reconstructed breast on the quality of life in breast cancer survivors.
Methods
A retrospective cohort study was performed in the Maastricht University Medical Center. Patients undergoing a DIEP flap breast reconstruction between January 2015 and January 2016 were included. The primary outcome was quality of life (BREAST-Q domain ‘physical well-being of the chest’). The Semmes–Weinstein monofilaments were used for objective sensation measurement of the reconstructed breast(s).
Results
Eighteen patients with and 14 patients without nerve coaptation responded. Nipple reconstruction was the only characteristic that differed statistically significant between both groups (
p
= 0.04). The BREAST-Q score for the domain physical well-being of the chest was 77.89 ± 18.89 on average in patients with nerve coaptation and 66.21 ± 18.26 in patients without nerve coaptation (
p
= 0.09). Linear regression showed a statistically significant relation between objectively measured sensation and BREAST-Q score for the domain physical well-being of the chest with a regression coefficient of − 13.17 ± 3.61 (
p
< 0.01).
Conclusions
Improved sensation in the autologous reconstructed breast, with the addition of microsurgical nerve coaptation, has a statistical significant positive impact on the quality of life in breast cancer survivors according to the BREAST-Q.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Advancements in reconstructive microsurgery have evolved into supermicrosurgery; connecting vessels with diameter between 0.3 and 0.8 mm for reconstruction of lymphatic flow and vascularized tissue ...transplantation. Supermicrosurgery is limited by the precision and dexterity of the surgeon's hands. Robot assistance can help overcome these human limitations, thereby enabling a breakthrough in supermicrosurgery. We report the first-in-human study of robot-assisted supermicrosurgery using a dedicated microsurgical robotic platform. A prospective randomized pilot study is conducted comparing robot-assisted and manual supermicrosurgical lymphatico-venous anastomosis (LVA) in treating breast cancer-related lymphedema. We evaluate patient outcome at 1 and 3 months post surgery, duration of the surgery, and quality of the anastomosis. At 3 months, patient outcome improves. Furthermore, a steep decline in duration of time required to complete the anastomosis is observed in the robot-assisted group (33-16 min). Here, we report the feasibility of robot-assisted supermicrosurgical anastomosis in LVA, indicating promising results for the future of reconstructive supermicrosurgery.
BACKGROUND:The sensory recovery of the breast remains an undervalued aspect of autologous breast reconstruction. The aim of this study was to evaluate the effect of nerve coaptation on the sensory ...recovery of the breast following DIEP flap breast reconstruction and to assess the associations of length of follow-up and timing of the reconstruction.
METHODS:A prospective comparative study was conducted of all patients who underwent either innervated or noninnervated DIEP flap breast reconstruction and returned for follow-up between September of 2015 and July of 2017. Nerve coaptation was performed to the anterior cutaneous branch of the third intercostal nerve. Semmes-Weinstein monofilaments were used for sensory testing of the native skin and flap skin.
RESULTS:A total of 48 innervated DIEP flaps in 36 patients and 61 noninnervated DIEP flaps in 45 patients were tested at different follow-up time points. Nerve coaptation was significantly associated with lower monofilament values in all areas of the reconstructed breast (adjusted difference, −1.2; p < 0.001), which indicated that sensory recovery of the breast was significantly better in innervated compared with noninnervated DIEP flaps. For every month of follow-up, the mean monofilament value decreased by 0.083 in innervated flaps (p < 0.001) and 0.012 in noninnervated flaps (p < 0.001). Nerve coaptation significantly improved sensation in both immediate and delayed reconstructions.
CONCLUSIONS:This study demonstrated that nerve coaptation in DIEP flap breast reconstruction is associated with a significantly better sensory recovery in all areas of the reconstructed breast compared with noninnervated flaps. The length of follow-up was significantly associated with the sensory recovery.
Purpose
Lymphedema is a debilitating condition that significantly affects patient’s quality of life (QoL). The aim of this study was to assess the long-term outcomes after lymphaticovenous ...anastomosis (LVA) for extremity lymphedema.
Methods
A single-center prospective study on upper and lower extremity lymphedema patients was performed. All LVA procedures were preceded by outpatient Indocyanine Green (ICG) lymphography. Quality of life measured by the Lymph-ICF was the primary outcome. Limb circumference, use of compression garments, and frequency of cellulitis episodes and manual lymphatic drainage (MLD) sessions were secondary outcomes.
Results
One hundred consecutive patients, predominantly experiencing upper extremity lymphedema following breast cancer (
n
= 85), underwent a total of 132 LVAs. During a mean follow-up of 25 months, mean Lymph-ICF score significantly decreased from 43.9 preoperative to 30.6 postoperative, representing significant QoL improvement. Decrease in upper and lower limb circumference was observed in 52% of patients with a mean decrease of 6%. Overall mean circumference was not significantly different. Percentage of patients that could reduce compression garments in the upper and lower extremity group was 65% and 40%, respectively. Number of cellulitis episodes per year and MLD sessions per week showed a mean decrease of respectively 0.6 and 0.8 in the upper extremity and 0.4 and 1.0 in the lower extremity group.
Conclusions
LVA resulted in significant QoL improvement in upper and lower extremity lymphedema patients. Limb circumference did not significantly improve but good results concerning compression garments, cellulitis episodes, and MLD sessions were obtained. Additionally, a simple and patient-friendly method for outpatient ICG lymphography is presented.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Purpose
Lymphedema is a chronic and disabling sequel of breast cancer treatment that can be treated by lymphatico-venous anastomosis (LVA). Artificial connections between the venous and lymphatic ...system are performed supermicrosurgically. This prospective study analyses the effect of LVA on quality of life.
Methods
A prospective study was performed between November 2015 and July 2016 on consecutive patients in the Maastricht University Medical Centre. Quality of life was considered as the primary outcome, and the Lymphedema International Classification of Functioning (Lymph-ICF) questionnaire was used. Discontinuation of compressive stockings and arm volume, using the Upper Extremity Lymphedema index (UEL-index), were the secondary outcomes.
Results
Twenty women with early-stage breast cancer-related lymphedema (BCRL) were included. The mean age was 55.9 ± 4 years and the median BMI was 25.1 21–30 kg/m
2
. The mean follow-up was 7.8 ± 1.5 months. Statistically significant improvement in quality of life was achieved in the total score and for all the quality of life domains after one year of follow-up (
p
< 0.05). The discontinuation rate in compressive stockings use was 85%. The difference in mean relative volume did not show a statistically significant decrease.
Conclusions
LVA for early-stage BCRL resulted in a significant improvement in quality of life and a high rate in stocking discontinuation.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
This multicenter, randomized trial of hypoglycemia treatment in otherwise healthy newborns at risk for hypoglycemia compared cognitive and motor outcome scores at 18 months for a traditional ...treatment threshold (glucose concentration of <47 mg per deciliter) and a lower threshold (glucose concentration of <36 mg per deciliter). The lower threshold was noninferior to the traditional threshold.
IMPORTANCE: There is a need for a new, less invasive breast reconstruction option for patients who undergo mastectomy in their breast cancer treatment. OBJECTIVE: To investigate quality of life (QoL) ...among patients undergoing a new breast reconstruction technique, autologous fat transfer (AFT), compared with that among patients undergoing implant-based reconstruction (IBR). DESIGN, SETTING, AND PARTICIPANTS: The BREAST trial was a randomized clinical trial conducted between November 2, 2015, and October 31, 2021, performed in 7 hospitals across the Netherlands. Follow-up was 12 months. Referrals could be obtained from general practitioners and all departments from participating or nonparticipating hospitals. The patients with breast cancer who had undergone mastectomy and were seeking breast reconstruction were screened for eligibility (radiotherapy history and physique) by participating plastic surgeons. Patients receiving postmastectomy radiotherapy were excluded. INTERVENTIONS: Breast reconstruction with AFT plus expansion or 2-phased IBR. Randomization was done in a 1:1 ratio. MAIN OUTCOMES AND MEASURES: The statistical analysis was performed per protocol. The predefined primary outcome was QoL at 12 months after final surgery. This was measured by the BREAST-Q questionnaire, a validated breast reconstruction surgery questionnaire. Questions on the BREAST-Q questionnaire are scored from 0 to 100, with a higher score indicating greater satisfaction or better QoL (depending on the scale). Secondary outcomes were breast volume and the safety and efficacy of the techniques. RESULTS: A total of 193 female patients (mean SD age, 49.2 10.6 years) 18 years or older who desired breast reconstruction were included, of whom 91 patients in the AFT group (mean SD age, 49.3 10.3 years) and 80 in the IBR group (mean age, 49.1 11.0 years) received the allocated intervention. In total, 64 women in the AFT group and 68 women in the IBR group completed follow-up. In the IBR group, 18 patients dropped out mainly due to their aversion to implant use while in the AFT group 6 patients ended their treatment prematurely because of the burden (that is, the treatment being too heavy or tiring). The BREAST-Q scores were higher in the AFT group in all 5 domains and significantly higher in 3: satisfaction with breasts (difference, 9.9; P = .002), physical well-being: chest (difference; 7.6; P = .007), and satisfaction with outcome (difference, 7.6; P = .04). Linear mixed-effects regression analysis showed that QoL change over time was dependent on the treatment group in favor of AFT. The mean (SD) breast volume achieved differed between the groups (AFT: 300.3 111.4 mL; IBR: 384.1 86.6 mL). No differences in oncological serious adverse events were found. CONCLUSIONS AND RELEVANCE: This randomized clinical trial found higher QoL and an increase in QoL scores over time in the AFT group compared with the IBR group. No evidence was found that AFT was unsafe. This is encouraging news since it provides a third, less invasive reconstruction option for patients with breast cancer. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02339779
ABSTRACT We present a study of the vertical structure of the gaseous and stellar disks in a sample of edge-on galaxies (NGC 4157, 4565, and 5907) using BIMA/CARMA , VLA Hi, and Spitzer 3.6 m data. In ...order to take into account projection effects when we measure the disk thickness as a function of radius, we first obtain the inclination by modeling the radio data. Using the measurement of the disk thicknesses and the derived radial profiles of gas and stars, we estimate the corresponding volume densities and vertical velocity dispersions. Both stellar and gas disks have smoothly varying scale heights and velocity dispersions, contrary to assumptions of previous studies. Using the velocity dispersions, we find that the gravitational instability parameter Q follows a fairly uniform profile with radius and is across the star-forming disk. The star formation law has a slope that is significantly different from those found in more face-on galaxy studies, both in deprojected and pixel-by-pixel plots. Midplane gas pressure based on the varying scale heights and velocity dispersions appears to roughly hold a power-law correlation with the midplane volume density ratio.
Purpose
The COVID pandemic significantly influenced reconstructive breast surgery regimens. Many surgeries were cancelled or postponed. COVID entails not only respiratory, but also coagulative ...symptoms. It, therefore, potentially increases the risk of postoperative complications. The incidence of perioperative COVID infection and its influence on postoperative recovery after reconstructive breast surgery is still unknown.
Methods
This dual center retrospective cohort study included patients that underwent reconstructive breast surgery between March 2020 and July 2021. Post-mastectomy autologous or implant-based breast reconstruction (ABR; IBR), as well as post-lumpectomy oncoplastic partial breast reconstruction (PBR) were eligible. Patient data were extracted from electronic medical records. Data regarding COVID-19 infection was collected through a questionnaire. The primary outcome was complication rate.
Results
The ABR, IBR and PBR groups consisted of 113 (12 COVID-positive), 41 (2 COVID-positive) and 113 (10 COVID-positive) patients. In the ABR and PBR groups, postoperative complications occurred significantly more often in patients with perioperative COVID-infection. Especially impaired wound healing occurred significantly more often in the ABR and PBR breasts, but also at the donor site of ABR patients with perioperative COVID.
Conclusion
Perioperative COVID-infection increases susceptibility to complicated wound healing after reconstructive breast surgery. A possible explanation lies in the dysregulation of haemostasis by the virus, and its direct effects on microvasculature. A hypercoagulable state results. We recommend to postpone elective breast surgery for 4–6 weeks after COVID-19 infection. Also, precautionary measures remain important to minimize the risk of perioperative COVID-19 infection.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Background
Breast cancer will affect one in eight women during their lifetime. The opportunity to restore the removed tissue and cosmetic appearance is provided by reconstructive breast surgery ...following skin‐sparing mastectomy (SSM). Mastectomy skin flap necrosis (MSFN) is a common complication following SSM breast reconstruction. This postoperative complication can be prevented by intraoperative assessment of mastectomy skin flap viability and intervention when tissue perfusion is compromised. Indocyanine green fluorescence angiography is presumed to be a better predictor of MSFN compared to clinical evaluation alone.
Objectives
To assess the effects of indocyanine green fluorescence angiography (ICGA) for preventing mastectomy skin flap necrosis in women undergoing immediate breast reconstruction following skin‐sparing mastectomy.
To summarise the different ICGA protocols available for assessment of mastectomy skin flap perfusion in women undergoing immediate breast reconstructions following skin‐sparing mastectomy.
Search methods
We searched the Cochrane Breast Cancer Specialised Register, Cochrane Central Register of Controlled Trials (CENTRAL; Issue 3, 2019), MEDLINE, Embase, the World Health Organization's International Clinical Trials Registry Platform (ICTRP) and Clinicaltrials.gov in April 2019. In addition, we searched reference lists of published studies.
Selection criteria
We included studies that compared the use of ICGA to clinical evaluation to assess mastectomy skin vascularisation and recruited women undergoing immediate autologous or prosthetic reconstructive surgery following SSM for confirmed breast malignancy or high risk of developing breast cancer.
Data collection and analysis
Two review authors independently assessed the risk of bias of the included nonrandomised studies and extracted data on postoperative outcomes, including postoperative MSFN, reoperation, autologous flap necrosis, dehiscence, infection, haematoma and seroma, and patient‐related outcomes. The quality of the evidence was assessed using the GRADE approach and we constructed two 'Summary of finding's tables: one for the comparison of ICGA to clinical evaluation on a per patient basis and one on a per breast basis.
Main results
Nine nonrandomised cohort studies met the inclusion criteria and involved a total of 1589 women with 2199 breast reconstructions. We included seven retrospective and two prospective cohort studies. Six studies reported the number of MSFN on a per breast basis for a total of 1435 breasts and three studies reported the number of MSFN on a per patient basis for a total of 573 women. Five studies reported the number of other complications on a per breast basis for a total of 1370 breasts and four studies reported the number on a per patient basis for a total of 613 patients. Therefore, we decided to pool data separately.
Risk of bias for each included nonrandomised study was assessed using the Newcastle‐Ottawa Scale for cohort studies. There was serious concern with risk of bias due to the nonrandomised study design of all included studies and the low comparability of cohorts in most studies. The quality of the evidence was found to be very low, after downgrading the quality of evidence twice for imprecision based on the small sample sizes and low number of events in the included studies.
Postoperative complications on a per patient basis
We are uncertain about the effect of ICGA on MSFN (RR 0.79, 95% CI 0.40 to 1.56; three studies, 573 participants: very low quality of evidence), infection rates (RR 0.91, 95% CI 0.60 to 1.40; four studies, 613 participants: very low quality of evidence), haematoma rates (RR 0.87, 95% CI 0.30 to 2.53; two studies, 459 participants: very low quality of evidence) and seroma rates (RR 1.68, 95% CI 0.41 to 6.80; two studies, 408 participants: very low quality of evidence) compared to the clinical group. We found evidence that ICGA may reduce reoperation rates (RR 0.50, 95% CI 0.35 to 0.72; four studies, 613 participants: very low quality of evidence). One study considered dehiscence as an outcome. In this single study, dehiscence was observed in 2.2% of participants (4/184) in the ICGA group compared to 0.5% of participants (1/184) in the clinical group (P = 0.372). The RR was 4.00 (95% CI 0.45 to 35.45; one study; 368 participants; very low quality of evidence).
Postoperative complications on a per breast basis
We found evidence that ICGA may reduce MSFN (RR 0.62, 95% CI 0.48 to 0.82; six studies, 1435 breasts: very low quality of evidence), may reduce reoperation rates (RR 0.65, 95% CI 0.47 to 0.92; five studies, 1370 breasts: very low quality of evidence) and may reduce infection rates (RR 0.65, 95% CI 0.44 to 0.97; five studies, 1370 breasts: very low quality of evidence) compared to the clinical group. We are uncertain about the effect of ICGA on haematoma rates (RR 1.53, CI 95% 0.47 to 4.95; four studies, 1042 breasts: very low quality of evidence) and seroma rates (RR 0.71, 95% CI 0.37 to 1.35; two studies, 528 breasts: very low quality of evidence).
None of the studies reported patient‐related outcomes.
ICGA protocols: eight studies used the SPY System and one study used the Photodynamic Eye imaging system (PDE) to assess MSFN. ICGA protocols in the included studies were not extensively described in most studies.
Authors' conclusions
Although mastectomy skin flap perfusion is performed more frequently using ICGA as a helpful tool, there is a lack of high‐quality evidence in the context of randomised controlled trials. The quality of evidence in this review is very low, since only nonrandomised cohort studies have been included. With the results from this review, no conclusions can be drawn about what method of assessment is best to use during breast reconstructive surgery. High‐quality randomised controlled studies that compare the use of ICGA to assess MSFN compared to clinical evaluation are needed.
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