Abstract P3-04-09: 3-dimensional intraoperative analysis of screen-detected breast cancers reduce re-excision rates

Introduction: Breast conserving therapy, has generally been accepted as treatment of choice for early invasive breast cancer. However adequate local control depends on obtaining negative margins and receipt of radiation In 20-30 % of patients with breast conserving surgery a second re-excision procedure is due to tumor-positive margins at histopathology. Margins re-excision rate are variable across the countries. Mean re-excision rate of 17.2% across units in UK. Intraoperative specimen radiography,used to evaluate partial mastectomy specimens ensure that the lesion is adequately removed.

Objective: to determine whether 3D-intraoperative imaging better predicts margin status and reduces the re-excision rate than conventional 2D imaging.

Methods: Retrospective study comparing two cohorts of patients 360 screen-detected breast cancer (2D cohort). April 2015 to March 2018

300 screen-detected breast cancer (3D cohort) April 2018 to March 2021

Royal Cornwall Hospital (RCHT) introduced a 3D intraoperative system for all cases in April 2018

Prior to the introduction of 3D intraoperative imaging at RCHT the re-excision rate was stable at approximately 15%.

All patient had undergone preoperative digital mammogram and ultrasound.

All patients had core biopsy diagnosis

All malignancies were localised with ROLL (Radio-guided occult lesion localization) techniques.

All wide local excision were performed by 5 fully trained oncoplastic breast surgeons (similar distribution within the two cohort)

Specimen radiograph was performed intraoperatively using:

2D x-ray device (Faxitron system; Trident Hologic, Marlborough, MA) or

3D tomosynthesis (Mozart system; Kubtec Medical imaging, Stratford,CT).

For both methods of assessment,specimen was placed in the device and auto exposed without any compression of tissue.

All specimens were marked with orienting sutures and clips according to local protocol.

All specimens were painted in theatre by the operating surgeon.

All specimens were examined by the same pathologists.

No change in margin protocol for 12 years(already compliant to ABS guidelines)

• A clear margin for invasive cancer was defined as tumour found within 1mm of

margin. For ductal carcinoma in situ (DCIS), a margin was classified as positive if ink

on tumour, was classified as close ink is found in under 2 mm from tumour and as

negative if more or equal to 2 mm, in accordance with NICE guidelines. (22)

Statistical Analysis:

• The study compares patient demographics, histology, and re-excision rates between 2D and 3D

• Descriptive and comparative statistics are be calculated for all collected data TABLE 1:

3D/2D RR 0.59 (P:0.01), CI 0,3369-09068, Z -2.3473, P 0.0189

Conclusions: The use of intraoperative 3D specimen X-ray reduced the relative risk of re-excision rate by 41% (P=0.01) without any negative impact on other parameters.

Table 1: Results 3D intraoperative imaging versus 2D intraoperative imaging

Citation Format: Jo Mondani, Hamza Arabiyat, Stavroula Kastora, Mona Sulieman, Imran Abbas, Polly King, Rachel English, Iain Brown, Miklos Barta, Nicola Jackson, Philip Drew. 3-dimensional intraoperative analysis of screen-detected breast cancers reduce re-excision rates [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P3-04-09.

Mindfulness training for borderline personality disorder: A systematic review of contemporary literature

Mindfulness is a component of several psychotherapies. Nonetheless, its effectiveness in borderline personality disorder (BPD) management remains obscure. This systematic review examined the effect of mindfulness training in BPD patients. Cochrane Central Register of Controlled Trials, CAB Abstracts, Embase, MEDLINE and APA PsycInfo were searched until 30 June 2021. Five trials with 294 participants were included. Improvements were reported in participants' levels of impulsivity, in their emotion dysregulation patterns, in their attention skills and in their mindfulness-related capacities including decentering and nonjudging. The findings suggest that mindfulness training may be an effective tool for alleviating certain aspects of BPD symptomatology. More research is needed before definitive conclusions can be reached about the effectiveness of mindfulness training in the treatment of BPD patients, and this remains to be elucidated in larger structured clinical trials, with longer follow-ups.

Impact of diabetes on COVID-19 mortality and hospital outcomes from a global perspective: An umbrella systematic review and meta-analysis

INTRODUCTION

To date, COVID-19 has claimed 4.9 million lives. Diabetes has been identified as an independent risk factor of serious outcomes in people with COVID-19 infection. Whether that holds true across world regions uniformly has not been previously assessed.

METHODS

This study offers the first umbrella systematic review and meta-analysis to analyse the collective and geographically stratified mortality, ICU admission, ventilation requirement, illness severity and discharge rate amongst patients with diabetes. Five databases (EMBASE, MEDLINE, CAB Abstracts, PsychInfo and Web of Science) and 3 additional sources (SSRN's eLibrary, Research Square and MedRxiv) were searched from inception to 30 August 2021. Prospective and retrospective cohort studies, reporting the association between diabetes and one or more COVID-19 hospitalization outcomes, were included. This meta-analysis was registered on PROSPERO, CRD42021278579. Abbreviated MeSH terms used for search were as follows: (Diabetes) AND (2019 Novel Coronavirus Disease), adapted per database requirements. Exclusion criteria exclusion criteria were as follows: (1) none of the primary or secondary outcomes of meta-analysis reported, (2) no confirmed COVID-19 infection (laboratory or clinical) and (3) no unexposed population (solely patients with diabetes included). Quality of the included studies were assessed using the Newcastle-Ottawa Scale (NOS) whilst quality of evidence by the GRADE framework. Studies that were clinically homogeneous were pooled. Summative data and heterogeneity were generated by the Cochrane platform RevMan (V. 5.4).

RESULTS

Overall, 158 observational studies were included, with a total of 270,212 of participants, median age 59 [53-65 IQR] of who 56.5% were male. A total of 22 studies originated from EU, 90 from Far East, 16 from Middle East and 30 from America. Data were synthesized with mixed heterogeneity across outcomes. Pooled results highlighted those patients with diabetes were at a higher risk of COVID-19-related mortality, OR 1.87 [95%CI 1.61, 2.17]. ICU admissions increased across all studies for patients with diabetes, OR 1.59 [95%CI 1.15, 2.18], a result that was mainly skewed by Far East-originating studies, OR 1.94 [95%CI 1.51, 2.49]. Ventilation requirements were also increased amongst patients with diabetes worldwide, OR 1.44 [95%CI 1.20, 1.73] as well as their presentation with severe or critical condition, OR 2.88 [95%CI 2.29, 3.63]. HbA1C levels under <70 mmol and metformin use constituted protective factors in view of COVID-19 mortality, whilst the inverse was true for concurrent insulin use.

CONCLUSIONS

Whilst diabetes constitutes a poor prognosticator for various COVID-19 infection outcomes, variability across world regions is significant and may skew overall trends.

A systematic review of therapies for aortobronchial fistulae

OBJECTIVE

The aim of the study was to summarize epidemiologic data about aortobronchial fistulas and compare outcomes (mortality, recurrence, re-operation) of open, staged, and endovascular repair of aortobronchial fistula.

METHODS

A systematic literature review was conducted to identify eligible studies published between January of 1999 and December of 2019. The Cochrane Library, PubMed and Scopus databases were used as search engines. Eligible studies included articles reporting postoperative outcomes (death/follow-up). Literature review revealed only case reports and small case series and thus, only descriptive data with data heterogeneity was available. The corresponding authors were contacted to provide additional information or outcome updates (recurrence/reoperation/death).

RESULTS

Overall, 214 patients (90 studies) underwent 271 procedures (including re-do procedures and staged procedures). Most of the patients were treated by endovascular means (72.42%). Open surgical repair was performed in 21.96% and staged procedures in 5.6%. Aortobronchial fistulae located most often in the descending thoracic aorta (Zone 3,4) (64,6%) and in Zone 2 (23,8%). Fourteen percent of aortobronchial fistulae developed after thoracic endovascular aneurysm repair. Recurrence or infection occurred in 20% (43 patients). Recurrences were at some extend associated with the presence of endoleak. Long-term antibiotic administration (>1 month) was instituted in 63 patients (29.4%), whilst 90 patients (42%) did not receive antibiotics beyond hospitalization. From the remaining 61, 3 received life-long antibiotics and for 58 patients data were not available. Considering outcomes, mean follow-up was 25.1 months (0-188 months) and not significantly different among treatments.

LIMITATIONS

Literature review has revealed only case reports and small case series and thus, only descriptive data were available. Randomized controlled trials are not available due to the rarity of the disease which significantly decreases the power of the present study. Also, this study reflects significant data heterogeneity due to the nature of the analyzed manuscripts and would benefit from large patient cohort studies which till today have not been conducted.

CONCLUSION

Aortobronchial fistula is a complex disease. Endoleaks may be involved in the development and in recurrence process and they should not be disregarded. Considering major outcomes (length of follow-up), the available treating strategies are equal and thus, surgeons should feel confident to apply the treatment of their choice, taking in mind their experience, patient's age, and clinical condition.

Obstetric anal sphincter injury events prior and after Episcissors-60 implementation: A systematic review and meta-analysis

OBJECTIVE

To assess the effect of Episcissors-60 upon obstetric anal sphincter injuries (OASIS) reduction in nulliparous women.

STUDY DESIGN

Independent literature search for relevant studies was performed up to 30th May 2021 on five databases: Embase (OVID), MEDLINE (R) (OVID), CAB Abstracts (OVID), ClinicalTrials.gov, and Google Scholar. The primary outcome was to assess OASIS events prior and after Epi-60 implementation in clinical practice in natural births (NB), whilst secondary outcomes included overall operative vaginal delivery (OVD) %/spontaneous vaginal deliveries (SVD) % deliveries, episiotomy rates and operator satisfaction. All included studies (retrospective, prospective and time-series) examined the effect of Episcissors-60 implementation upon observed OASIS %.

RESULTS

A total of 14,027 nulliparous females were included in the meta-analysis. Overall, study heterogeneity was high at I²: 79% with collectively fair quality of studies, as assessed by the Newcastle-Ottawa scale. Overall, this analysis highlights significant differences of OASIS events that might suggest their implementation as standard practice [RD -0.02, 95% CI -0.03 to 0.00; P = 0.03].

CONCLUSION

The present analysis highlights significant differences of OASIS events pre- and post- Epi-60, that may suggest Episcissors-60 implementation as standard practice. Nonetheless, to ensure data integrity, well reported observational studies and robust randomized controlled trials (RCTs) are required prior to introduction of Epi-60 as standard episiotomy technique in clinical practice.

Clinical frailty scale as a point of care prognostic indicator of mortality in COVID-19: a systematic review and meta-analysis

BACKGROUND

COVID-19 has resulted in the largest pandemic experienced since 1918, accounting for over 2 million deaths globally. Frail and older people are at the highest risk of mortality. The main objective of the present research was to quantify the impact of clinical frailty scale (CFS) by increasing severity of frailty and to identify other personal prognostic factors associated with increased mortality from COVID-19.

METHODS

This study offers a contemporary systematic review and meta-analysis to analyse the stratified mortality risk by increasing CFS sub-categories (1-3, 4-5 and 6-9). Databases searched included EMBASE, MEDLINE, CAB Abstracts, PsychInfo, and Web of Science with end-search restriction the 18th December 2020. Publications identified via MedRevix were followed up on the 23rd March 2021 in peer-reviewed database search, and citations were updated as published. Prospective and retrospective cohort studies which reported the association between CFS and COVID-19 mortality were included. Thirty-four studies were eligible for systematic review and seventeen for meta-analysis, with 81-87% (I2) heterogeneity.

FINDINGS

All studies [N: 34] included patients from a hospital setting, comprising a total of 18,042 patients with mean age 72.8 (Min: 56; Max: 86). The CFS 4-5 patient group had significantly increased mortality when compared to patients with CFS 1-3 [(RE) OR 1.95 (1.32 (95% CI), 2.87 (95% CI)); I2 81%; p = 0.0008]. Furthermore, CFS 6-9 patient group displayed an even more noticeable mortality increase when compared to patients with CFS 1-3 [(RE) OR 3.09 (2.03, 4.71); I2 87%; p<0.0001]. Generic inverse variance analysis of adjusted hazard ratio among included studies highlighted that CFS (p = 0.0001), male gender (p = 0.0009), National Early Warning Score (p = 0.0001), Ischaemic Heart Disease (IHD) (p = 0.07), Hypertension (HT) (p<0.0001), and Chronic Kidney Disease (CKD) (p = 0.0009) were associated with increased COVID-19 mortality.

INTERPRETATION

Our findings suggest a differential stratification of CFS scores in the context of COVID-19 infection, in which CFS 1-3 patients may be considered at lower risk, CFS 4-5 at moderate risk, and CFS 6-9 at high risk of mortality regardless of age. Overall, our study not only aims to alert clinicians of the value of CFS scores, but also highlight the multiple dimensions to consider such as age, gender and co-morbidities, even among moderately frail patients in relation to COVID-19 mortality.

FUNDING

None.

Delineation of an unknown significance FANCA genetic variant in a recurrent breast cancer patient

Fanconi anaemia is a heterogeneous condition associated with mutations in the Fanconi anaemia complementation group (FANC). The FANC group has also been extensively associated with tumourigenesis due to its intricate association with the cellular repair mechanism. In this case report, we are drawing initial associations between a previously unreported FANC-A gene point mutation (P1222L) and familial breast cancer, by examining the presentation and management of a 65-year-old female patient with history of bilateral breast cancer of two different histological categories (ductal and in situ lobular). Here, we present a further genetic analysis beyond the common clinical practice to understand the patient's genetic predisposition and improve their long-term management.

Subinvolution of the placental site as the cause of hysterectomy in young woman

Subinvolution of placental sites (SPSs) is a rare but severe cause of secondary postpartum haemorrhage (PPH). SPS is characterised by the abnormal persistence of large, dilated, superficially modified spiral arteries in the absence of retained products of conception. It is an important cause of morbidity and mortality of young women. In this study, we present a case of secondary PPH in a young woman after uncomplicated caesarean delivery who was deemed clinically unstable, and finally, underwent emergent total abdominal hysterectomy. We reviewed the literature with an emphasis on the pathophysiology of this situation. Treatment of patients with SPS includes conservative medical therapy, hysterectomy and fertility-sparing percutaneous embolotherapy.

Decoding infraorbital dark circles with lasers and fillers

BACKGROUND

The degree and severity of dark circles varies according to the skin type, age, and lifestyle.

OBJECTIVES

To evaluate different non-surgical treatment options for dark circles.

METHODS

In a private practice setting in the UK and India, 34 patients with dark circles with different Fitzpatrick skin types were treated with fillers (Group 1), lasers (Group 2), and fillers and lasers combined (Group 3). Pre and post treatment photos were taken and subjective and objective outcomes in appearance were reported.

RESULTS

All treatment options were effective in all three groups with minimal side effects reported. No statistically significant difference was found between the three treatment groups. Patients who had tear troughs and/or hollow eyes responded well to fillers, patients with loose and wrinkled skin to CO₂ laser, patients with tear troughs and hyperpigmentation to fillers, Q switched Nd:YAG and topical agents and patients with tear troughs and veins to fillers and long pulsed Nd:YAG lasers. Most patients (82%) rated the improvement in their appearance as excellent.

CONCLUSIONS

All 3 treatment modalities were effective in the reduction of periorbital dark circles depending on underlying cause. Non-surgical treatments are capable of correcting and improving dark circles with minimum complications and downtime.

The addition of clomiphene citrate to ovarian stimulation protocols for poor responders

Poor ovarian response (POR) is one of the most challenging problems in assisted reproduction. Several strategies have been used to improve pregnancy rates. The use of Clomiphene Citrate (CC) has been shown to improve ovarian stimulation outcomes and decrease gonadotropin requirements in women of advanced reproductive age. However, the combination of CC and gonadotropins to improve pregnancy rates after in IVF in poor responders is still unexplored due to the small number of trials with few participants. This is a prospective cohort trial involving 12 patients diagnosed with poor ovarian response who underwent ovarian stimulation during the period between June 2015 and September of 2017. All patients were treated with the maximum dose of gonadotropins (hMG, 300 IU/day, hMG group) according to a short gonadotropin/GnRH antagonist protocol. In a subsequent cycle those patients underwent the same stimulation protocol with the addition of 100 mg of CC from day 3 to day 7 (CC-hMG group). Supplementation with 100 mg of CC resulted in a statistically significant increase in estradiol levels, number of follicles and number of oocytes retrieved, as well as an increase in the number of total embryos available for transfer. Furthermore, a significant reduction was observed in cancellation rates in the CC-hMG group. Two clinical pregnancies, which resulted in two live births and 3 biochemical pregnancies were achieved in the CC/hMG group. Furthermore, by employing open-source, biological data we identified a common gene (Estrogen Receptor 1, ESR1) between genetic targets of clomiphene treatment and POR which could explain the benefits of clomiphene in this group of patients. In conclusion, the addition of CC 100 mg to the stimulation regimen in women diagnosed with POR and previous failed IVF cycles could improve stimulation results, but this study could not demonstrate any benefit in terms of clinical pregnancies and live births. The effectiveness of this treatment requires further investigation.

Stress adaptation in a pathogenic fungus

Candida albicans is a major fungal pathogen of humans. This yeast is carried by many individuals as a harmless commensal, but when immune defences are perturbed it causes mucosal infections (thrush). Additionally, when the immune system becomes severely compromised, C. albicans often causes life-threatening systemic infections. A battery of virulence factors and fitness attributes promote the pathogenicity of C. albicans. Fitness attributes include robust responses to local environmental stresses, the inactivation of which attenuates virulence. Stress signalling pathways in C. albicans include evolutionarily conserved modules. However, there has been rewiring of some stress regulatory circuitry such that the roles of a number of regulators in C. albicans have diverged relative to the benign model yeasts Saccharomyces cerevisiae and Schizosaccharomyces pombe. This reflects the specific evolution of C. albicans as an opportunistic pathogen obligately associated with warm-blooded animals, compared with other yeasts that are found across diverse environmental niches. Our understanding of C. albicans stress signalling is based primarily on the in vitro responses of glucose-grown cells to individual stresses. However, in vivo this pathogen occupies complex and dynamic host niches characterised by alternative carbon sources and simultaneous exposure to combinations of stresses (rather than individual stresses). It has become apparent that changes in carbon source strongly influence stress resistance, and that some combinatorial stresses exert non-additive effects upon C. albicans. These effects, which are relevant to fungus–host interactions during disease progression, are mediated by multiple mechanisms that include signalling and chemical crosstalk, stress pathway interference and a biological transistor.