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Abstract Background To investigate the diagnostic reliability of selective microdochectomy after direct ductoscopic wire marking of suspect lesions in patients with pathological nipple discharge. Methods Selective microdochectomy due to pathological discharge was performed in 33 patients with mean age of 51.7 years. Ductoscopes of 0.9 and 1.1 mm in diameter with a channel for wire marking were used. Only patients without sonographic or mammographic correlation for the discharge were included. The pathologic mammary duct was wire marked and extirpated under direct visual guidance via the ductoscope. The histological results were compared with cytology, galactography and ductoscopy. Results In 24 out of 33 cases (72%) an intraductal, epithelial proliferation was found histologically. The following sensitivities for intraductal, epithelial proliferations could be determined: cytology 4%, galactography 74%, and ductoscopy 78%. Conclusion The method allows selective microdochectomy of the pathological duct and the intraductal proliferation under visual guidance. The resection volume can be reduced in contrast to the unselective ductectomy after injection of methylene blue.

Abstract Background In most patients with ovarian cancer, diagnosis occurs after the tumour has disseminated beyond the ovaries. In these cases, post-surgical taxane/platinum combination chemotherapy is the "gold standard". However, most of the patients experience disease relapse and eventually die due to the emergence of chemotherapy resistance. Histone deacetylase inhibitors are novel anticancer agents that hold promise to improve patient outcome. Methods We compared a prototypic histone deacetylase inhibitor, suberoylanilide hydroxamic acid (SAHA), and paclitaxel for their treatment efficacy in ovarian cancer cell lines and in primary patient-derived ovarian cancer cells. The primary cancer cells were isolated from malignant ascites collected from five patients with stage III ovarian carcinomas. Cytotoxic activities were evaluated by Alamar Blue assay and by caspase-3 activation. The ability of SAHA to kill drug-resistant 2780AD cells was also assessed. Results By employing the cell lines OVCAR-3, SK-OV-3, and A2780, we established SAHA at concentrations of 1 to 20 μM to be as efficient in inducing cell death as paclitaxel at concentrations of 3 to 300 nM. Consequently, we treated the patient-derived cancer cells with these doses of the drugs. All five isolates were sensitive to SAHA, with cell killing ranging from 21% to 63% after a 72-h exposure to 20 μM SAHA, while four of them were resistant to paclitaxel (i.e., Conclusion These ex vivo findings raise the possibility that SAHA may prove effective in the treatment of paclitaxel-resistant ovarian cancer in vivo.

Aim: This research compares postoperative complication rates with Strattice™, SERAGYN ® BR, and TiLOOP ® Bra interposition devices for subpectoral implant placement after skin or nipple sparing mastectomy., Patients and Methods: 188 breast reconstructions in 157 patients after primary (n=96), secondary (n=71), or prophylactic (n=21) surgery were analyzed regarding major and minor complications., Results: With acellular dermal matrix (ADM) Strattice™, 27.5% major and 27.5% minor complications occurred. Implant loss rates were 27.3% in primary and 30.8% in secondary reconstructions. With SERAGYN ® BR, 11.1% major and 13,0% minor complications occurred. Implant losses (6.1%) occurred exclusively in primary reconstructions. With TiLOOP ® Bra, 14.9% major and 9.6% minor complications occurred. Implant loss rates were 7.7% in primary and 7.1% in secondary reconstructions., Conclusion: ADM was associated with high complication rates in primary and secondary reconstructions. Low complication rates were seen with mesh interposition devices in primary, secondary, and prophylactic reconstructions., (Copyright © 2021 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

Aim: Quality of life and patient satisfaction after subpectoral breast reconstruction with meshes or acellular dermal matrices (ADM) and implants were assessed using the BreastQ questionnaire to investigate a potential influence of the materials on these parameters., Patients and Methods: The BreastQ questionnaire was completed by 121 patients, who had received material-assisted, heterologous, subpectoral breast reconstruction between 2010 and 2018., Results: Answers were similar independent of the reconstruction materials used. After prophylactic mastectomy, the physical wellbeing (chest) improved significantly with all materials (p=0.04). Postoperative radiotherapy significantly reduced satisfaction with outcome (p=0.005). Patients under 50 years old had significantly better postoperative sexual wellbeing than older patients (p=0.03)., Conclusion: No influence was detected of the materials on the postoperative quality of life and patient satisfaction. An overall better quality of life was reported by younger and normal-weight patients with prophylactic or nipple-sparing mastectomy without radiotherapy., (Copyright © 2021 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

Background/aim: Synthetic meshes (SMs) and acellular dermal matrices (ADMs) are used in reconstructive breast surgery. In the absence of prospective comparative studies, the identification of differences relies on retrospective analyses., Patients and Methods: Our analysis focused on the impact of pre- and postoperative radiotherapy (RTX) and material-related differences. The analysis included 281 breast cancer patients (362 breasts) after nipple- and skin-sparing mastectomy with subpectoral implant insertion., Results: Overall, the implant loss rate was 23.1% using porcine ADM, 7% using partially resorbable SM (prSM), and 5.6% using non-resorbable SM (nrSM). After RTX, the implant loss rate was 56.3% with ADM, 13% with prSM and 13.2% with nrSM. The ADM group showed a significant effect of RTX on the postoperative seroma rate, wound infections, and implant loss rate. When prSM was used, RTX showed no significant effect. When using the nrSM, RTX significantly influenced complication rates regarding wound infections and implant loss., Conclusion: In material-assisted breast reconstructions with pre- or post-operative RTX, there is a significantly higher implant loss rate when using porcine ADM compared to SM., (Copyright © 2021 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

Background/aim: This trial intended to identify patient- and therapy-specific risk factors influencing the genesis of seroma and the extent of its formation., Patients and Methods: Within a prospective randomized controlled trial, 70 patients (n=35 TissuGlu ® ; n=35 drain) underwent a mastectomy with or without sentinel lymphonodectomy. Specific seroma-associated risk factors were recorded. Regular outpatient aftercare was performed during a 90-day postoperative follow-up., Results: A statistically significant increase in the postoperative seroma rate was demonstrated for those with pre-adiposity compared to normal body weight (p=0.016), as well as for the state of health evaluated by the score of American Society of Anesthesiologists (ASA) (ASA III compared to I; p=0.046), the presence of diabetes mellitus (p<0.001) and the reduction of the length of the surgical procedure (p=0.044)., Conclusion: A high body mass index, a poor state of health (ASA score), and diabetes mellitus, as well as a shorter duration of surgery, favor the incidence of postoperative seroma., (Copyright © 2021 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

Background/aim: The influence of a polyurethane-based tissue adhesive (TissuGlu®) on common complications following breast surgery was investigated., Patients and Methods: Within a Randomized-Controlled-Trial 70 women (n=35 TissuGlu®, n=35 drain) underwent a mastectomy with or without sentinel lymph node excision (SLNE), followed by a 90-day postoperative follow-up., Results: Postoperative interventions: Non-inferiority of the application of TissuGlu® was seen. Pain-Level/ Hospitalization: A statistically significant pain reduction from day four onwards (p<0.001) and a shorter hospitalization period (p<0.001) was observed. In contrast, the TissuGlu® group showed increased mean puncture incidence (p=0.013), and increased puncture volume (p=0.021)., Conclusion: Application of the polyurethane-based tissue adhesive TissuGlu® after mastectomy, with or without SLNE, showed potential for improvement of the clinical outcome. In contrast, high intervention rates and increased puncture volume, caused by recurring seromas following application of the surgical adhesive TissuGlu®, have a negative impact on the patient-specific convalescence., (Copyright© 2020, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

Background/aim: The study aimed at investigating the correlation between ductoscopic and histopathological findings and clarify whether the former allow for accurate prediction of malignancy., Patients and Methods: The prospective national multi-center study covered a sample of 224 patients with pathologic nipple discharge. A total of 214 patients underwent ductoscopy with subsequent extirpation of the mammary duct. The ductoscopic findings were categorized according to shape, number, color and surface structure of lesions and vascularity and compared to the histological results and analyses., Results: Ductoscopy revealed lesions in 134 of 214 patients (62.2%). The criteria "multiple versus solitary lesion" differed significantly between malignant and benign lesions. All other criteria were not statistically significant. Malignant tumors were more frequently presented as multiple lesions, benign lesions or masses as solitary lesions (80% vs. 24.8%; p=0.018)., Conclusion: The ductoscopic criterion "solitary vs. multiple lesion" appears to have a low diagnostic prediction of malignancy or benignity., (Copyright© 2020, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)

This year's annual AWOgyn meeting focused on studies of reconstructive breast surgery. As the majority of breast reconstructions are implant-based, most studies also focused on implant-based reconstruction. Since 2011, the guidelines have recommended using interposed mesh materials as support. The basic idea behind every type of material is to provide coverage and stabilization for the implant by constructing an "internal bra" which will create the appropriate implant shape and maintain the position, stability and flexibility of the implant. The Working Group for Reconstructive Surgery in Oncology-Gynecology (AWOgyn) has undertaken to analyze different materials with regard to indications, success rates and side effects as documented in registers, clinical assessments and study protocols. This has increased application safety and is expected to improve it even further in future. Prospective studies are being carried out to investigate issues such as the optimal material, optimal implant site and best cosmetic results. The first results for porcine and human acellular matrices and for partially resorbable titanium-coated synthetic polypropylene meshes are now available. In 2019, the AWOgyn working group will be launching further studies to evaluate a perforated acellular dermal matrix (Fortiva ® ), a titanium-coated implant pocket (TiLOOP ® Bra Pocket) and a fully resorbable synthetic mesh (TIGR ® mesh).

With improvements in breast imaging, mammography, ultrasound and minimally invasive interventions, the detection of early breast cancer, non-invasive cancers, lesions of uncertain malignant potential, and benign lesions has increased. However, with the improved diagnostic capabilities comes a substantial risk of false-positive benign lesions and vice versa false-negative malignant lesions. A statement is provided on the manifestation, imaging, and diagnostic verification of isolated benign breast tumours that have a frequent manifestation, in addition to general therapy management recommendations. Histological evaluation of benign breast tumours is the most reliable diagnostic method. According to the S3 guideline and information gained from analysis of the literature, preference is to be given to core biopsy for each type of tumour as the preferred diagnostic method. An indication for open biopsy is also to be established should the tumour increase in size in the follow-up interval, after recurring discrepancies in the vacuum biopsy results, or at the request of the patient. As an alternative, minimally invasive procedures such as therapeutic vacuum biopsy, cryoablation or high-intensity focused ultrasound are also becoming possible alternatives in definitive surgical management. The newer minimally invasive methods show an adequate degree of accuracy and hardly any restrictions in terms of post-interventional cosmetics so that current requirements of extensive breast imaging can be thoroughly met.

Objective: Synthetic meshes and acellular dermal matrices are increasingly used in implant-based breast reconstruction. The objective of this study was to determine the incidence and severity of complications following the implantation of the partially absorbable bi-component soft mesh SERAGYN® BR and assess risk factors for adverse operative outcomes., Methods: A retrospective clinical study was performed: The SERAGYN® BR soft mesh was utilized in 148 operations (skin-sparing mastectomy, nipple-sparing mastectomy, breast-conserving surgery, and secondary reconstruction after mastectomy) in four different institutions in Germany from June 2012 to February 2014. We analyzed whether the results were affected by tumor morphology (e.g., grading), patient characteristics and comorbidities, previous surgery or therapies, and use of alloplastic materials., Results: The SERAGYN® BR soft mesh was successfully implanted in 131 of 148 operations. The rate of reconstructive failure was 11.5%. The most common complication was seroma (25.7%), followed by hematoma and skin infection (each 14.2%). Wound-healing issues were detected in 13.5% cases, secondary wound infections in 10.8%. 83.8% of operations had no severe complications. Independent predictors for reconstructive failure were wound-healing issues, nipple- or skin necrosis, wound- or skin infections, a high volume of excised tissue, hematomas, seromas, and sentinel lymph node excisions. A higher body mass index was correlated with a higher rate of infection., Conclusion: SERAGYN® BR mesh can be used successfully in breast reconstructive surgery. Rates of major complications or reconstructive failure are comparable to the use of other synthetic or biological meshes.