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Dieser Titel aus dem De Gruyter-Verlagsarchiv ist digitalisiert worden, um ihn der wissenschaftlichen Forschung zugänglich zu machen. Da der Titel erstmals im Nationalsozialismus publiziert wurde, ...ist er in besonderem Maße in seinem historischen Kontext zu betrachten. Mehr erfahren Sie. >
For this study, the authors evaluated early psychosocial adjustments and health-related quality-of-life changes after breast reconstruction.
All consecutive patients who underwent breast ...reconstruction between June 2009 and November 2010 were asked to complete the BREAST-Q, Hospital Anxiety and Depression Scale (HADS), and Impact of Event Scale (IES) questionnaires before surgery and at 3 weeks and 3 months after surgery. A repeated-measures design was used to compare scores between baseline and postoperative time points.
Fifty-one of 55 women completed the questionnaires (response rate, 93%). BREAST-Q subscale scores (breast, sexual well being, and psychosocial well being) improved significantly (P < .05) postoperatively. The other subscale scores related to physical well being of the chest and abdomen dropped significantly 3 weeks after reconstruction; and, by 3 months after reconstruction, both scores improved significantly (P < .05). Large effect sizes for improvements in satisfaction, psychosocial well being, and sexual well being were observed (1.88, 1.2, and 1.31, respectively); whereas deterioration in the effect size for abdominal donor site was reported (-1.56). After adjusting for postoperative complications, there were statistically significant changes in BREAST-Q subscale scores. Changes observed on the HADS and IES provided external validation of the findings obtained on the BREAST-Q.
The current results suggested that the gains in breast satisfaction, psychosocial well being, and sexual well being after patients undergo either free muscle-sparing transverse rectus abdominis myocutaneous flap reconstruction or deep inferior epigastric artery flap reconstruction are statistically significant and clinically meaningful to the patient as early as 3 weeks after surgery. However, these gains are accompanied by significant deterioration in physical well being of the abdominal donor site.
Chronic postsurgical pain (CPSP), an often unanticipated result of necessary and even life-saving procedures, develops in 5-10% of patients one-year after major surgery. Substantial advances have ...been made in identifying patients at elevated risk of developing CPSP based on perioperative pain, opioid use, and negative affect, including depression, anxiety, pain catastrophizing, and posttraumatic stress disorder-like symptoms. The Transitional Pain Service (TPS) at Toronto General Hospital (TGH) is the first to comprehensively address the problem of CPSP at three stages: 1) preoperatively, 2) postoperatively in hospital, and 3) postoperatively in an outpatient setting for up to 6 months after surgery. Patients at high risk for CPSP are identified early and offered coordinated and comprehensive care by the multidisciplinary team consisting of pain physicians, advanced practice nurses, psychologists, and physiotherapists. Access to expert intervention through the Transitional Pain Service bypasses typically long wait times for surgical patients to be referred and seen in chronic pain clinics. This affords the opportunity to impact patients' pain trajectories, preventing the transition from acute to chronic pain, and reducing suffering, disability, and health care costs. In this report, we describe the workings of the Transitional Pain Service at Toronto General Hospital, including the clinical algorithm used to identify patients, and clinical services offered to patients as they transition through the stages of surgical recovery. We describe the role of the psychological treatment, which draws on innovations in Acceptance and Commitment Therapy that allow for brief and effective behavioral interventions to be applied transdiagnostically and preventatively. Finally, we describe our vision for future growth.
Background
Despite high success rates, flap failure remains an inherent risk in microvascular breast reconstruction. Identifying patients who are at high risk for flap failure would enable us to ...recommend alternative reconstructive techniques. However, as flap failure is a rare event, identification of risk factors is statistically challenging. Machine learning is a form of artificial intelligence that automates analytical model building. It has been proposed that machine learning can build superior prediction models when the outcome of interest is rare.
Methods
In this study we evaluate machine learning resampling and decision-tree classification models for the prediction of flap failure in a large retrospective cohort of microvascular breast reconstructions.
Results
A total of 1012 patients were included in the study. Twelve patients (1.1%) experienced flap failure. The ROSE informed oversampling technique and decision-tree classification resulted in a strong prediction model (AUC 0.95) with high sensitivity and specificity. In the testing cohort, the model maintained acceptable specificity and predictive power (AUC 0.67), but sensitivity was reduced. The model identified four high-risk patient groups. Obesity, comorbidities and smoking were found to contribute to flap loss. The flap failure rate in high-risk patients was 7.8% compared with 0.44% in the low-risk cohort (
p
= 0.001).
Conclusions
This machine-learning risk prediction model suggests that flap failure may not be a random event. The algorithm indicates that flap failure is multifactorial and identifies a number of potential contributing factors that warrant further investigation.
BACKGROUND:This is the first study to use generic distress, cancer-specific, and procedure-specific measures to prospectively evaluate psychological responses, body image, sexuality, and ...health-related quality of life in immediate compared with delayed breast reconstruction.
METHODS:Consecutive patients undergoing autologous immediate and delayed breast reconstruction (June of 2009 to December of 2010) completed the Hospital Anxiety and Depression Scale, Body Image Scale, Sexuality Scale, and BREAST-Q preoperatively and postoperatively (6, 12, and 18 months). Linear mixed-effects analyses between each outcome and time point were performed.
RESULTS:One hundred six women underwent mastectomy with immediate (n = 30) and delayed breast reconstruction (n = 76). Before reconstruction, 26 percent of patients had abnormal anxiety scores and 9 percent had abnormal depression scores, with no significant differences between groups. Patients awaiting delayed breast reconstruction had significantly impaired prereconstruction body image (p = 0.01) and sexuality (p = 0.01) and worse satisfaction with breast (p < 0.01), psychological (p < 0.01), and sexual well-being (p < 0.01). At 18 months after immediate and delayed breast reconstruction, there was significant improvement in anxiety, depression, body image, sexuality, and health-related quality of life.
CONCLUSIONS:This single-center study shows that mastectomy with immediate breast reconstruction may protect breast cancer patients from a period of psychosocial distress, poor body image, and diminished sexual well-being compared with those waiting for delayed breast reconstruction. In patients who are oncologically eligible and strongly interested in breast reconstruction, efforts should be made to provide immediate breast reconstruction to decrease the interval of psychosocial distress, poor body image, and impaired sexuality.
Currently, a large number of skin biopsies are taken for each true skin cancer case detected, creating a need for a rapid, high sensitivity, and specificity skin cancer detection tool to reduce the ...number of unnecessary biopsies taken from benign tissue. Picosecond infrared laser mass spectrometry (PIRL-MS) using a hand-held sampling probe is reported to detect and classify melanoma, squamous cell carcinoma, and normal skin with average sensitivity and specificity values of 86–95% and 91–98%, respectively (at a 95% confidence level) solely requiring 10 s or less of total data collection and analysis time. Classifications are not adversely affected by specimen’s quantity of melanin pigments and are mediated by a number of metabolic lipids, further identified herein as potential biomarkers for skin cancer-type differentiation, 19 of which were sufficient here (as a fully characterized metabolite array) to provide high specificity and sensitivity classification of skin cancer types. In situ detection was demonstrated in an intradermal melanoma mouse model wherein in vivo sampling did not cause significant discomfort. PIRL-MS sampling is further shown to be compatible with downstream gross histopathologic evaluations despite loss of tissue from the immediate laser sampling site(s) and can be configured using selective laser pulses to avoid thermal damage to normal skin. Therefore, PIRL-MS may be employed as a decision-support tool to reduce both the subjectivity of clinical diagnosis and the number of unnecessary biopsies currently required for skin cancer screening.
Introduction
Rates of bilateral mastectomy are rising in women with unilateral, nonhereditary breast cancer. We aim to characterize how psychosocial outcomes evolve after breast cancer surgery.
...Patients and Methods
We performed a prospective cohort study of women with unilateral, sporadic stage 0–III breast cancer at University Health Network in Toronto, Canada between 2014 and 2017. Women completed validated psychosocial questionnaires (BREAST-Q, Impact of Event Scale, Hospital Anxiety & Depression Scale) preoperatively, and at 6 and 12 months following surgery. Change in psychosocial scores was assessed between surgical groups using linear mixed models, controlling for age, stage, and adjuvant treatments.
P
< .05 were significant.
Results
A total of 475 women underwent unilateral lumpectomy (42.5%), unilateral mastectomy (38.3%), and bilateral mastectomy (19.2%). There was a significant interaction (
P
< .0001) between procedure and time for breast satisfaction, psychosocial and physical well-being. Women having unilateral lumpectomy had higher breast satisfaction and psychosocial well-being scores at 6 and 12 months after surgery compared with either unilateral or bilateral mastectomy, with no difference between the latter two groups. Physical well-being declined in all groups over time; scores were not better in women having bilateral mastectomy. While sexual well-being scores remained stable in the unilateral lumpectomy group, scores declined similarly in both unilateral and bilateral mastectomy groups over time. Cancer-related distress, anxiety, and depression scores declined significantly after surgery, regardless of surgical procedure (
P
< .001).
Conclusions
Psychosocial outcomes are not improved with contralateral prophylactic mastectomy in women with unilateral breast cancer. Our data may inform women considering contralateral prophylactic mastectomy.
Background
Resection of soft-tissue sarcomas from the adductor compartment is associated with significant complications. Free/pedicled flaps often are used for wound closure, but their effect on ...healing is unclear. We compared wound complications, oncologic, and functional outcomes for patients undergoing flap reconstruction or primary closure following resection of adductor sarcomas.
Methods
A total of 177 patients underwent resection of an adductor sarcoma with primary closure (PrC) or free/pedicled flap reconstruction (FR). Patient, tumor, and treatment characteristics were compared, as well as wound complications, oncologic, and functional outcomes (TESS/MSTS87/MSTS93). To examine the relative benefit of flap reconstruction, number needed to treat (NNT) was calculated.
Results
In total, 143 patients underwent PrC and 34 had FR, 68% of which were pedicled. There were few differences in demographic, tumor, or treatment characteristics. No significant difference was found in the rate of wound complications. Length of stay was significantly longer in FR (18 days vs. PrC 8 days;
p
< 0.01). Oncologic and functional outcomes were similar over 5 years follow-up. Uncomplicated wound healing occurred more often in FR compared with PrC for tumors with ≥15 cm (NNT = 8.4) or volumes ≥ 800 ml (NNT = 8.4). Tumors ≤ 336 ml do not benefit from a flap, whereas those > 600 ml are 1.5 times more likely to heal uneventfully after flap closure.
Conclusions
Although flap use prolonged hospitalization, it decreased wound healing complications for larger tumors, and in all sized tumors, it demonstrated similar functional and oncologic outcomes to primary closure. Our size-based treatment criteria can help to identify patients with large adductor sarcomas who could benefit from flap reconstruction.
Level of Evidence III
(Retrospective cohort study)
Advancements in imaging, surgical, and radiation techniques have made resection of larger and more extensive extremity soft tissue sarcomas (ESTS) possible but with the potential for high ...complication rates. This study summarizes complication and reoperation rates associated with resection of ESTS and reviews predictors for wound complications.
A systematic review of the literature on ESTS in adults was undertaken from the four databases MEDLINE, Embase, MEDLINE In-Process & Other Non-Indexed Citations, and the Cochrane Central Register of Controlled Trials (CCRCT). Meta-analyses of the complications, reoperations, and risk factors were performed.
In the twenty-one studies included, there was an overall wound complication rate of 30.2% (95% CI 26.56–33.47) and a reoperation rate of 13.37% (95% CI 10.21–16.52) in 5628 patients. Individual studies reported that older patient age, obesity, smoking, diabetes, large tumor size, tumor site, and preoperative radiotherapy were associated with adverse outcomes. Tumors of the lower limb, diabetes, smoking, obesity, and radiation were identified as independent predictors of wound complications in meta-analysis. A high level of heterogeneity between studies limited pooled analysis for many variables.
Despite advancements in the treatment of ESTS, postoperative complication rates remain high. Awareness of the risk factors for wound complications, especially those that may be modifiable, is essential to decrease postoperative morbidities in these patients to improve treatment outcomes and quality of life.
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