Monday, April 15, 2013
still recruiting: Acute Normovolemic Hemodilution in Patients Undergoing Cytoreductive Surgery for Advanced Ovarian Cancer - clinical trial
clinical trial - full text
The purpose of this study is to help us learn how to lower the risk of a blood transfusion during surgery to remove ovarian cancer. Acute normovolemic hemodilution (ANH) is a technique performed in the operating room before the procedure begins that may reduce the risk of needing a transfusion during ovarian cancer surgery......
Fungal Infections Associated with Contaminated Methylprednisolone Injections — Preliminary Report — NEJM
open access
"There has been no systematic surveillance in the United States for adverse events that occur after glucocorticoid injections for the treatment of chronic musculoskeletal pain, but infection is a known, although probably rare, risk documented in the medical literature.1-6 Infections that develop after a procedure are usually bacterial2,7-10; fungal infections are extremely rare.11-14 We present preliminary data on a multistate outbreak of fungal meningitis and other infections associated with injections of preservative-free methylprednisolone acetate that was purchased from a single compounding pharmacy and describe the initial public health response to the outbreak.....
Modest benefit of total parenteral nutrition and chemotherapy after venting gastrostomy tube placement
Abstract
Highlights
►
Median survival was 5.6 weeks following venting gastrostomy tube
placement.
► Chemotherapy and TPN were associated with a modest survival benefit measured in weeks.
► More than half of women required gastrostomy tube revision due to complications.
► Chemotherapy and TPN were associated with a modest survival benefit measured in weeks.
► More than half of women required gastrostomy tube revision due to complications.
paywalled: Summary of the 44th Annual Meeting on Women's Cancers
Abstract
Conference Report
Summary of the 44th Annual Meeting on Women's Cancers
Figures and tables from this article:
Hypercalcemia in a child with juvenile granulosa cell tumor of ovary: Report of an unusual paraneoplastic syndrome and review of the literature
open access - case reports
Highlights
►
Hypercalcemia is an extremely rare paraneoplastic syndrome in children.
► Small cell carcinoma is the commonest ovarian tumor associated with hypercalcemia.
► Small cell carcinoma must be ruled out because of poor prognosis.
► We report the only third case of JGCT associated with paraneoplastic hypercalcemia.
► Small cell carcinoma is the commonest ovarian tumor associated with hypercalcemia.
► Small cell carcinoma must be ruled out because of poor prognosis.
► We report the only third case of JGCT associated with paraneoplastic hypercalcemia.
Low-molecular-weight or Unfractionated Heparin in Venous Thromboembolism: The Influence of Renal Function
Abstract
Conclusions
In comparison with
low-molecular-weight heparin, initial therapy with unfractionated
heparin was associated with a higher mortality and higher rate of fatal
pulmonary embolism in patients with creatinine clearance levels >60
mL/min or <30 mL/min, but not in those with levels between 30 and 60
mL/min.
As Court (U.S.) Considers Gene Patents, Case May Overlook Relevant Issues - NYTimes.com
media
"The Supreme Court is poised to take up the highly charged question of whether human genes can be patented. But another question could trump it: Has the field of genetics moved so far so fast that whatever the court decides, it has come too late to the issue?
The case, which will come before the court on Monday, involves patents held by Myriad Genetics
on two human genes, which, when mutated, give a woman a high risk of
getting breast or ovarian cancer. The patents give Myriad a monopoly on
testing for these mutations, a highly lucrative business......
"....But while the debate continues, some experts say patents on human genes are actually fading in importance.
“Events on the ground have overtaken the law,” said Dr. James P. Evans, a
professor of genetics and medicine at the University of North Carolina.
He said the impact of the Supreme Court’s decision “will be much more
ideological than it will be practical.” For one thing, the Myriad patents at issue are due to expire over the next two years."....
Reviews on Cancer - Human height genes and cancer
Blogger's Note: past research has implicated height/risk of ovarian cancer eg. "normal, body-plan master genes" but obviously it is not the only criteria for risk-based analyses
Abstract
Body
development requires the ability to control cell proliferation and
metabolism, together with selective ‘invasive’ cell migration for
organogenesis. These requirements are shared with cancer. Human
height-associated loci have been recently identified by genome-wide
SNP-association studies. Strikingly, most of the more than 100 genes
found associated to height appear linked to neoplastic growth, and
impose a higher risk for cancer. Height-associated genes drive the
HH/PTCH and BMP/TGFβ pathways, with p53, c-Myc, ERα, HNF4A and SMADs as
central network nodes. Genetic analysis of body-size-affecting diseases
and evidence from genetically-modified animals support this model. The
finding that cancer is deeply linked to normal, body-plan master genes
may profoundly affect current paradigms on tumor development.
Sunday, April 14, 2013
Patterns of chemotherapy treatment for women with invasive epithelial ovarian cancer – A population-based study
Abstract
Highlights
►
Medical records of all Australian women with ovarian cancer in 2005
were abstracted.
► Older women, those with high-grade/low-stage or mucinous cancers had less chemotherapy.
► Only 32% completed 6 cycles of carboplatin/paclitaxel without dose reduction/delay.
► Older women, those with high-grade/low-stage or mucinous cancers had less chemotherapy.
► Only 32% completed 6 cycles of carboplatin/paclitaxel without dose reduction/delay.
Objective
Ovarian
cancer five-year survival is poor at < 40%. In the absence of
effective screening or new treatments, ensuring all women receive
optimal treatment is one avenue to improve survival. There is little
population-based information regarding the primary chemotherapy
treatment that women with epithelial ovarian cancer receive. This
information is essential to identify potential gaps in care.
Methods
Cancer
registries identified all women diagnosed with invasive epithelial
ovarian cancer in Australia in 2005 (n = 1192). Histopathology,
chemotherapy and comorbidity information was abstracted from medical
records. Multivariable logistic regression was used to identify factors
associated with chemotherapy commencement, regimen, and completion.
Results
Women
> 70 years (p < 0.0001), those with high-grade, stage IA/IB
cancers (vs. stages IC–IV, p = 0.003) and those with mucinous cancers
(p = 0.0002) were less likely to start chemotherapy. Most treated women
received platinum-based drugs (97%), but only 68% received combination
carboplatin–paclitaxel and only half completed six cycles without
treatment modification/delay. Approximately 19% received single-agent
carboplatin: mostly those aged > 70 (p < 0.0001) and/or with
co-morbidities (p < 0.0001). Age was the strongest predictor of
completing six cycles of combination therapy.
Conclusions
For
specific patient groups, particularly older women, there is notable
variation from standard treatment. Understanding how treatment
variations affect survival and determining optimal regimens for these
groups are research priorities.
Analysis of secondary cytoreduction for recurrent ovarian cancer by robotics, laparoscopy and laparotomy
Abstract
Highlights
►
Minimally invasive surgery should be considered for secondary
cytoreduction in selected patients with recurrent ovarian cancer.
► Perioperative and survival outcomes are similar for laparoscopy and robotics.
► Blood loss and hospital stay are improved as compared to laparotomy.
► Perioperative and survival outcomes are similar for laparoscopy and robotics.
► Blood loss and hospital stay are improved as compared to laparotomy.
Objective
Analysis
of perioperative outcomes and survival of patients with recurrent
ovarian cancer undergoing secondary cytoreduction by robotics,
laparoscopy, or laparotomy.
Methods
Retrospective
analysis of 52 selected patients with recurrent ovarian cancer
undergoing secondary cytoreduction by laparoscopy (9), laparotomy (33)
or robotics (10) between January 2006 and December 2010. Comparison was
made by a total of 21 factors including age, BMI, number of previous
surgeries, tumor type and grade, number of procedures, and 15 types of
procedures performed at secondary cytoreduction.
Results
For
all patients, the mean operating time was 213.8 min, mean blood loss
657.4 ml; and mean hospital stay 7.5 days. Complete debulking was
achieved in 75% of patients. Postoperative complications were noted in
36.5% of patients. Overall and progression-free survival at 3-years were
58.8% and 34.1%, respectively. Laparoscopy and robotics had reduced
blood loss and hospital stay, while no differences were observed among
the three groups for operating time, complications, complete debulking,
and survival.
Conclusion
Selected
patients with recurrent ovarian cancer benefit from a laparoscopic or
robotic secondary cytoreduction without compromising survival. Robotics
and laparoscopy provide similar perioperative outcomes, and reduced
blood loss and shorter hospital stay as compared to laparotomy.
Laparotomy seems preferable for patients with widespread peritoneal
implants, multiple sites of recurrence, and/or extensive adhesions.
Prevalence and incidence of comorbidities in elderly women with ovarian cancer
Abstract
Highlights
►
Comorbidities were common among elderly U.S. women with or without
ovarian cancer.
► The incidence of most comorbidities was higher in cancer than cancer-free patients.
► The incidence of most comorbidities was higher in cancer than cancer-free patients.
Objective
Studies
suggest comorbidity plays an important role in ovarian cancer. We
characterized the epidemiology of comorbid conditions in elderly U.S.
women with ovarian cancer.
Methods
Women
with ovarian cancer age ≥ 66 years, and matched cancer-free women, were
identified using the National Cancer Institute's Surveillance,
Epidemiology, and End Results registry linked to Medicare claims.
Prevalence before diagnosis/index date and 3- and 12-month incidence
rates (per 1000 person-years) after diagnosis/index date were estimated
for 34 chronic and acute conditions across a broad range of diagnostic
categories.
Results
There were
5087 each of women with ovarian cancer and cancer-free women. The
prevalence of most conditions was similar between cancer and cancer-free
patients, but exceptions included hypertension (51.8% and 43.5%,
respectively), osteoarthritis (13.4% and 17.3%, respectively), and
cerebrovascular disease (8.0% and 9.8%, respectively). In contrast, 3-
and 12-month incidence rates (per 1000 person years) of most conditions
were significantly higher in cancer than in cancer-free patients:
hypertension (177.3 and 47.4, respectively); thromboembolic event (145.3
and 5.5, respectively); congestive heart failure (113.3 and 28.6,
respectively); infection (664.4 and 55.2, respectively); and anemia
(408.3 and 33.1, respectively) at 12 months.
Conclusions
Comorbidities
were common among elderly women. After cancer diagnosis, women with
ovarian cancer had a much higher incidence of comorbidities than
cancer-free women. The high incidence of some of these comorbidities may
be related to the cancer or its treatment, but others may have been
prevalent but undiagnosed until the cancer diagnosis. The presence of
comorbidities may affect treatment decisions.
Obesity-associated adipokines correlate with survival in epithelial ovarian cancer
Abstract
Highlights
►
We predict that the leptin to adiponectin (L:A) ratio correlates with
survival in ovarian cancer.
► We retrospectively evaluated the association between serum L:A ratio and survival.
► A high L:A ratio correlated with poor clinical outcome, but did not independently predict survival.
► We retrospectively evaluated the association between serum L:A ratio and survival.
► A high L:A ratio correlated with poor clinical outcome, but did not independently predict survival.
Objectives
Obesity
impacts outcome in women with epithelial ovarian cancer (EOC), although
its exact role and the molecular mechanisms remain poorly defined.
Adipocytes secrete leptin and adiponectin, and the leptin to adiponectin
(L:A) ratio is correlated with poor survival in other malignancies. We
hypothesized that the L:A ratio is associated with survival in women
with EOC.
Methods
We queried the
institutional tumor registry for patients with advanced stage EOC and
identified a cohort of 161 women with banked fasting prediagnostic serum
samples. Patients underwent cytoredutive surgery followed by
platinum-based chemotherapy. Sera were assayed for leptin and
adiponectin, and clinico-pathologic data were abstracted. Standard
statistical tests were performed.
HOXB8 expression in ovarian serous carcinoma effusions is associated with shorter survival
Abstract
Highlights
►
HOXB5 and HOXB8 are differentially expressed at various anatomic sites
in serous ovarian carcinoma.
► HOXB5 expression is higher in post-chemotherapy disease recurrence effusions compared to pre-chemotherapy primary diagnosis effusions.
► Higher HOXB8 expression in effusions is associated with shorter overall and progression-free survival in serous ovarian carcinoma.
► HOXB5 expression is higher in post-chemotherapy disease recurrence effusions compared to pre-chemotherapy primary diagnosis effusions.
► Higher HOXB8 expression in effusions is associated with shorter overall and progression-free survival in serous ovarian carcinoma.
Objective
HOX
proteins are key transcription factors in embryogenesis. HOXB5 and
HOXB8 were previously shown to be overexpressed in ovarian/primary
peritoneal serous carcinoma compared to breast carcinoma using gene
expression arrays. The present study investigated the clinical role of
HOXB5 and HOXB8 in advanced-stage (FIGO III–IV) ovarian serous
carcinoma.
In vitro fertilization is associated with an increased risk of borderline ovarian tumours
Abstract
Highlights
►
We examined the risk of borderline ovarian tumours in a cohort of women
undergoing infertility treatment.
► Women having IVF had 2.5 times the risk of borderline tumours compared with women having infertility treatment but not IVF.
► In contrast to invasive epithelial ovarian cancer, neither birth nor hysterectomy nor sterilization appeared protective.
► Women having IVF had 2.5 times the risk of borderline tumours compared with women having infertility treatment but not IVF.
► In contrast to invasive epithelial ovarian cancer, neither birth nor hysterectomy nor sterilization appeared protective.
Objectives
To
compare the risk of borderline ovarian tumours in women having in vitro
fertilization (IVF) with women diagnosed with infertility but not
having IVF.
Methods
This was a
whole-population cohort study of women aged 20–44 years seeking hospital
infertility treatment or investigation in Western Australia in
1982–2002. Using Cox regression, we examined the effects of IVF
treatment and potential confounders on the rate of borderline ovarian
tumours. Potential confounders included parity, age, calendar year,
socio-economic status, infertility diagnoses including pelvic
inflammatory disorders and endometriosis and surgical procedures
including hysterectomy and tubal ligation.
Results
Women
undergoing IVF had an increased rate of borderline ovarian tumours with
a hazard ratio (HR) of 2.46 (95% confidence interval [CI] 1.20–5.04).
Unlike invasive epithelial ovarian cancer, neither birth (HR 0.89; 95%
CI 0.43–1.88) nor hysterectomy (1.02; 0.24–4.37) nor sterilization
(1.48; 0.63–3.48) appeared protective and the rate was not increased in
women with a diagnosis of endometriosis (HR 0.31; 95% CI 0.04–2.29).
Conclusions
Women
undergoing IVF treatment are at increased risk of being diagnosed with
borderline ovarian tumours. Risk factors for borderline ovarian tumours
appear different from those for invasive ovarian cancer.
A comparison between an ultrasound based prediction model (LR2) and the Risk of Ovarian Malignancy Algorithm (ROMA) to assess the risk of malignancy in women with an adnexal mass
Abstract
Highlights
►
Improved preoperative discrimination of adnexal masses of LR2 over ROMA
► ROMA showed less utility to detect cancer in premenopausal patients compared to LR2.
► LR2 missed fewer borderline tumors and early stage invasive cancers than ROMA.
► ROMA showed less utility to detect cancer in premenopausal patients compared to LR2.
► LR2 missed fewer borderline tumors and early stage invasive cancers than ROMA.
Objective
The
identification of novel biomarkers led to the development of the ROMA
algorithm incorporating both HE4 and CA125 to predict malignancy in
women with a pelvic mass. An ultrasound based prediction model (LR2)
developed by the International Ovarian Tumor Analysis (IOTA) study
offers better diagnostic performance than CA125 alone. In this study we
compared the diagnostic accuracy between LR2 and ROMA.
Methods
This
study included women with a pelvic mass scheduled for surgery and
enrolled in a previous prospective diagnostic accuracy study.
Experienced ultrasound examiners, general gynecologists and trainees
supervised by one of the experts performed the preoperative transvaginal
ultrasound examinations. Serum biomarkers were taken prior to surgery.
Accuracy of LR2 and ROMA was estimated at completion of this study and
did not form part of the decision making process. Final outcome was
histology of removed tissues and surgical stage if relevant.
Results
In
total 360 women were evaluated. 216 women had benign disease and 144 a
malignancy. Overall test performance of LR2 (AUC 0.952) with 94%
sensitivity and 82% specificity was significantly better than ROMA (AUC
0.893) with 84% sensitivity and 80% specificity. Difference in AUC was
0.059 (95% CI: 0.026–0.091; P-value 0.0004). Similar results were
obtained when stratified for menopausal status.
Conclusion
LR2
shows a better diagnostic performance than ROMA for the
characterization of a pelvic mass in both pre- and postmenopausal women.
These findings suggest that HE4 and CA125 may not play an important
role in the diagnosis of ovarian cancer if good quality ultrasonography
is available.
Preclinical evaluation of statins as a treatment for ovarian cancer
Abstract
Highlights
►
Continuous and prolonged exposure to simvastatin is required for
ovarian cancer cell cytotoxicity.
► Exposure of cells to simvastatin prior to carboplatin is profoundly antagonistic.
► Statins exert conflicting effects on the autophagy pathway.
► Exposure of cells to simvastatin prior to carboplatin is profoundly antagonistic.
► Statins exert conflicting effects on the autophagy pathway.
Objective
To evaluate the potential for statins to treat ovarian cancer.
Methods
The
sensitivity of 7 ovarian cancer cell lines to either statins or statins
combined with either carboplatin or paclitaxel was assessed using
monolayer cultures. Sensitivity to simvastatin was also evaluated in
ovarian cancer spheroids. The kinetics of cell death induced by
simvastatin was evaluated by measuring Trypan Blue exclusion. Autophagy
induced by simvastatin was assessed by measuring LC3-II, p62 or Rab7 by
immunoblotting or immunocytochemistry.
Results
All statins except pravastatin demonstrated single agent activity against monolayers (IC50 = 1–35 μM) and spheroids (IC50 = 1–13 μM).
This was mediated by HMG-CoAR inhibition, because either mevalonate or
geranylgeraniol prevented the cytotoxic effects of simvastatin.
Continuous exposure for 4 days was necessary to cause cell death.
Simvastatin caused accumulation of p62 but loss of Rab7, suggesting
inhibition of autophagosome trafficking. Accumulation of LC3-II was also
observed, even in the presence of bafilomycin, suggesting additional
stimulation of an earlier step in autophagy. Knockdown of the key
autophagy regulator Atg5 caused a modest increase in the sensitivity of
Ovcar-8 cells to simvastatin. Finally, additive or mild antagonist
effects were observed when simvastatin was combined simultaneously with
either carboplatin or paclitaxel, but when cells were exposed to
simvastatin prior to carboplatin, profound antagonism was observed.
Conclusions
These
observations suggest that clinical trials of statins in ovarian cancer
should evaluate high doses and schedules that ensure continual
inhibition of HMG-CoAR. Simvastatin has conflicting effects on the
autophagy pathway and this may contribute to its cytotoxic activity.
A Randomized Phase II Trial of Maintenance Therapy with Sorafenib in Front-line Ovarian Carcinoma
Abstract
Highlights
- •
- Results are presented for a phase II study of maintenance therapy with sorafenib in the treatment of OC.
- •
- Median PFS was not significantly superior for sorafenib compared with placebo.
- •
- Discontinuations due to AEs were more frequent with sorafenib which likely impacted assessment of efficacy.
Background
Sorafenib,
an oral multikinase inhibitor of the VEGFR/PDGFR/ Raf/MEK/ERK pathway,
has shown potential activity in patients with recurrent ovarian cancer
(OC). One strategy to prolong disease control and survival in patients
with OC is maintenance therapy after achieving a complete response. A
double-blind, randomized, placebo-controlled, phase II study to assess
the efficacy and safety of maintenance therapy with sorafenib in the
treatment of OC is presented.
Methods
Patients
with epithelial OC or primary peritoneal cancer in complete remission
were randomized to sorafenib 400 mg BID or matching placebo. The primary
endpoint was progression-free survival (PFS).
Timing of end-of-life care discussion with performance on end-of-life quality indicators in ovarian cancer
Abstract
- •
- Discussion of end-of-life care occurred late in the disease process and during hospital admissions in ovarian cancer patients.
- •
- Earlier end-of-life discussions are associated with better quality of cancer care.
Objectives
(1)
To describe the prevalence, timing and setting of documented
end-of-life (EOL) discussions in patients with advanced ovarian cancer;
and (2) To assess the impact of timing and setting of documented
end-of-life discussions on EOL quality care measures.
Primary invasive mucinous ovarian carcinoma of the intestinal type: Importance of the expansile versus infiltrative type in predicting recurrence and lymph node metastases
Abstract
Aims
Investigate
the role of expansile versus infiltrative type of primary invasive
intestinal type mucinous epithelial ovarian carcinoma (mEOC) in
predicting recurrence and lymph node metastases.
Class III β-Tubulin Overexpression in Ovarian Clear Cell and Serous Carcinoma as a Marker for Poor Overall Survival after Platinum/Taxane Chemotherapy and Sensitivity to Patupilone
Abstract
Objectives
Clear
cell carcinoma of the ovary (OCCC) is a distinct subtype of epithelial
cancer associated with chemoresistance and poor outcome compared to
serous papillary carcinomas (OSPC). Resistance to paclitaxel has been
linked to overexpression of class III β-tubulin in several human cancers
but inadequately characterized among OCCC. Chemoresistance has also
been variably linked to the drug efflux pump p-glycoprotein. Epothilones
are microtubule-stabilizing agents with putative activity in
paclitaxel-resistant malignancies. In this study, we clarify the
relationship between class III β-tubulin and p-glycoprotein expression
in OCCC, clinical outcome, and in vitro responsiveness to patupilone and paclitaxel.
Bereaved relatives’ perspectives of the patient’s oral intake towards the end of life A qualitative study
Abstract
Background: Patients approaching death often have a decreasing oral intake, which can be distressing for relatives. Little is known about
the relatives’ experiences with and perceptions of oral intake at the end of life.
Aim: This study aims to contribute to a more thorough understanding of relatives’ concerns regarding decreased oral intake of
the patient at the end of life.
(ovarian cancer) Signs of post-traumatic stress disorder in caregivers following an expected death: A qualitative study
Abstract
Background: Complications
of grief are an important area of investigation with potential to
improve the well-being of palliative care caregivers. There has been
little study of the prevalence or significance of post-traumatic stress
disorder for those bereaved after an expected death.
Aim:
To identify evidence suggestive of post-traumatic stress disorder symptoms in a population of bereaved caregivers of patients who have died of ovarian cancer.
Aim:
To identify evidence suggestive of post-traumatic stress disorder symptoms in a population of bereaved caregivers of patients who have died of ovarian cancer.
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