Publications by authors named "Obermair A"

Background: Use of long-acting, reversible contraceptives has increased over the past 20 years, but an understanding of how they could influence cancer risk is limited.

Methods: We conducted a nested case-control study among a national cohort of Australian women (n = 176 601 diagnosed with cancer between 2004 and 2013; 882 999 matched control individuals) to investigate the associations between the levonorgestrel intrauterine system, etonogestrel implants, depot-medroxyprogesterone acetate and cancer risk and compared these results with the oral contraceptive pill. We used conditional logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI).

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Objectives: To describe lower-limb symptoms pre- through to 2-years post-surgery following newly diagnosed gynecological cancer; to explore relationships between lower-limb symptoms, lower-limb lymphedema, body image, quality of life, anxiety and depression; and to determine whether lower-limb symptoms predict lower-limb lymphedema.

Methods: Fourteen lower-limb symptoms, lymphedema, body image, anxiety, depression, and quality of life were prospectively collected in 408 women with gynecological cancer pre-surgery, and at 6-, 12-, and 24-months post-surgery. Point prevalence and cumulative incidence were calculated for symptoms.

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Article Synopsis
  • People with T1a cervical cancer usually do well, but there's still a chance their cancer might come back, and doctors need better guidance on how to manage this.
  • A study looked at over 900 patients from different hospitals to find out more about the chances of cancer returning after surgery.
  • The study found that only 4.1% of patients had their cancer return, and it happened more often in certain groups, showing that certain things like lymphovascular space invasion (LVSI) can change the risk.
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Objective: Imaging for staging ovarian cancer is important to determine the extent of disease. The primary objective of this study was to compare gated 18F-fluorodeoxyglucose positron emission tomography coupled with computed tomography (FDG PET/CT) and standard CT scan with intravenous contrast to diagnose thoracic involvement in patients with advanced ovarian cancer prior to treatment. The secondary objective was to estimate changes in the International Federation of Gynecology and Obstetrics (FIGO) stage and clinical management resulting from gated PET/CT.

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Menopausal hormone therapy (MHT) use before ovarian cancer diagnosis has been associated with improved survival but whether the association varies by type and duration of use is inconclusive; data on MHT use after treatment, particularly the effect on health-related quality of life (HRQOL), are scarce. We investigated survival in women with ovarian cancer according to MHT use before and after diagnosis, and post-treatment MHT use and its association with HRQOL in a prospective nationwide cohort in Australia. We used Cox proportional hazards regression to estimate hazard ratios (HR) and 95% confidence intervals (CI) and propensity scores to reduce confounding by indication.

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  • Obstetrics and gynecology surgery is increasing in complexity due to an aging population, leading to more complications that affect both patients and surgeons, who may experience distress as "second victims."
  • The objective of the study was to quantify the impact of surgical complications on these surgeons and identify factors related to this impact.
  • A survey of 727 surgeons revealed that complications mainly caused stress related to poor patient outcomes and surgeon errors, significantly affecting their well-being and sleep, with many surgeons reporting lower complication rates compared to peers.
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Cancer outcomes are largely measured in terms of disease-free survival or overall survival, which is highly dependent on timely diagnosis and access to treatment methods available within the country's existing health care system. Although cancer survival rates have markedly led in the past few decades, any improvement in the 5-year survival of gynecologic cancers has been modest, as in the case of ovarian and cervical cancers, or has declined, as in the case of endometrial cancer. The lack of effective screening options contributes to many women presenting with advanced-stage disease and the need for radical approaches to treatment.

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JCO The aim of this study was to compare overall survival between open and minimally invasive radical hysterectomy with participants followed for 4.5 years. The primary objective was to evaluate whether minimally invasive surgery was noninferior in disease-free survival (DFS) to abdominal radical hysterectomy.

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  • This study reviews uterine preservation, gonadal function, surgical outcomes, and pregnancy rates in patients who underwent uterine transposition.
  • A total of 18 cases were analyzed, primarily involving young patients with cancers such as rectal and cervical squamous cell carcinoma.
  • The results indicate that uterine transposition is a safe procedure, with some patients achieving successful pregnancies, despite a significant complication rate, particularly cervical ischemia.
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  • The study aimed to determine if the status of mismatch repair (MMR) affects how different surgical methods impact outcomes for early-stage endometrial cancer.
  • Researchers analyzed data from a large population study, comparing laparoscopic surgery and laparotomy while considering MMR status in relation to recurrence and survival.
  • Results showed no significant differences in recurrence-free survival or overall survival between the two surgical approaches, regardless of MMR status, indicating that the type of surgery does not impact these outcomes in this patient group.
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  • The study aimed to create a consensus on the surgical technique for sentinel lymph node dissection in cervical cancer by surveying expert gynecological oncology surgeons.
  • A two-step modified Delphi method was employed, involving initial surveys and follow-up interviews, with a 70% agreement threshold for consensus.
  • Findings indicated that experts reached consensus on 15 recommended practices, including the use of indocyanine green as a tracer and specific injection techniques, while recommending against certain procedures such as injecting directly into tumors.
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Introduction: The benefits of exercise in reducing treatment-related morbidity and improving quality of life following a primary diagnosis of cancer have been well documented and have led to exercise being recommended by oncology societies for all people with a cancer diagnosis. However, these recommendations are derived from research typically involving cohorts with more common cancers and relatively good prognosis, such as breast and prostate. Evidence from these cancers may not apply to women with recurrent ovarian cancer.

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Background: Advanced surgical techniques, such as total laparoscopic hysterectomy, are often challenging to acquire beyond fellowship training programs for practicing obstetrician-gynecologists. A lack of formative data currently exist for continuing medical education programs, limiting our understanding of how improvement in surgical skills and training programs occur.

Objective: This study aimed to investigate how practicing obstetrician-gynecologists acting as trainees experience a program that aims to teach them total laparoscopic hysterectomy, and to assess whether their surgical skills improve according to data from formative assessment tools and qualitative data from open-ended survey questions and in-depth interviews.

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Background: It is widely accepted total laparoscopic hysterectomy (TLH) and vaginal hysterectomy are less invasive procedures compared to total abdominal hysterectomy (TAH). However, rates of TAH remain unreasonably high.

Aim: To pilot-test a model of training for practising obstetricians and gynaecologists (O&Gs) in TLH.

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Purpose: To systematically synthesise evidence of exercise intervention efficacy for physical/psychosocial outcomes that matter to women during/following treatment for gynaecological cancer.

Methods: Five databases were searched (PubMed, EMBASE, CINAHL, PsychInfo, Scopus). Exercise-only intervention studies that included women during/ following treatment for any gynaecological cancer, with/ without control comparison, on any physical or psychosocial outcome(s), were included and qualitatively appraised using the Revised Cochrane Risk of Bias tool and a modified Newcastle-Ottawa Scale.

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Introduction: Epidemiological evidence supports an association between higher levels of physical activity and improved cancer survival. Trial evidence is now needed to demonstrate the effect of exercise in a clinical setting. The xercise during emotherapy for varian cancer (ECHO) trial is a phase III, randomised controlled trial, designed to determine the effect of exercise on progression-free survival and physical well-being for patients receiving first-line chemotherapy for ovarian cancer.

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Introduction: Most patients diagnosed with endometrial hyperplasia or cancer are obese. Obesity, along with polycystic ovarian syndrome (PCOS) and type-2 diabetes mellitus (T2DM), may act synergistically to increase risk of malignant endometrial pathology. Incidence of malignant endometrial pathology is increasing, particularly in reproductive aged women.

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A pilot study was conducted to determine whether 3-monthly groin ultrasonography could eliminate groin dissection after a negative bilateral groin ultrasound in three groups of patients: (i) Those with a unifocal stage 1B squamous cell carcinoma of up to 20 mm in diameter. (ii) Those with an ipsilateral squamous cell carcinoma of any size which extended to within 1 cm either side of the midline. These patients underwent ipsilateral inguinofemoral lymphadenectomy and ultrasonic surveillance of the contralateral groin.

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Background: Most women with ovarian cancer (OC) are diagnosed with advanced disease. They often experience recurrence after primary treatment, and their subsequent prognosis is poor. Our goal was to evaluate the association between use of nonsteroidal antiinflammatory drugs (NSAIDs), including regular and low-dose aspirin, and 5-year cancer-specific survival after an OC diagnosis.

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Objective: The "intermediate-risk" (IR) group of early-stage cervical cancer patients is characterized by negative pelvic lymph nodes and a combination of tumor-related prognostic risk factors such as tumor size ≥2 cm, lymphovascular space invasion (LVSI), and deep stromal invasion. However, the role of adjuvant treatment in these patients remains controversial. We investigated whether adjuvant (chemo)radiation is associated with a survival benefit after radical surgery in patients with IR cervical cancer.

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