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Dive into the research topics where Serena Bertozzi is active.

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Featured researches published by Serena Bertozzi.


International journal of hepatology | 2013

Surgical Treatment and Survival in Patients with Liver Metastases from Neuroendocrine Tumors: A Meta-Analysis of Observational Studies

Stefano Bacchetti; Serena Bertozzi; Ambrogio P. Londero; Alessandro Uzzau; Enrico Maria Pasqual

Introduction. The role of hepatic resection in patients with liver metastases from gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is still poorly defined. Therefore, we examined the results obtained with surgical resection and other locoregional or systemic therapies by reviewing the recent literature on this topic. We performed the meta-analysis for comparing surgical resection of hepatic metastases with other treatments. Materials and Methods. In this systematic review and meta-analysis of observational studies, the literature search was undertaken between 1990 and 2012 looking for studies evaluating the different survivals between patients treated with surgical resection of hepatic metastases and with other surgical or nonsurgical therapies. The studies were evaluated for quality, publication bias, and heterogeneity. Pooled hazard ratio (HR) estimates and 95% confidence intervals (CI.95) were calculated using fixed-effects model. Results. We selected six studies in the review, five of which were suitable for meta-analysis. We found a significant longer survival in patients treated with hepatic resection than embolisation HR 0.34 (CI.95 0.21–0.55) or all other nonsurgical treatments HR 0.45 (CI.95 0.34–0.60). Only one study compared surgical resection with liver transplantation and meta-analysis was not feasible. Conclusions. Our meta-analysis provides evidence supporting the hypothesis that hepatic resection increases overall survival in patients with liver metastases from GEP-NETs. Further randomized clinical trials are needed to confirm these findings and it would be desirable to identify new markers to properly select patients for surgical treatment.


Gynakologisch-geburtshilfliche Rundschau | 2009

Morbus Paget der Vulva: Remission durch Lokalbehandlung mit Imiquimod – Fallbericht und Literaturübersicht

Serena Bertozzi; Ambrogio P. Londero; Arrigo Fruscalzo; Diego Marchesoni; Ralph J. Lellé

Der Morbus Paget ist eine seltene Erkrankung der Vulva, welche weniger als 1% aller Neoplasien der Vulva ausmacht. Die übliche Therapie besteht in der lokalen chirurgischen Entfernung. Während die invasive Form des Morbus Paget selten ist, stellen die häufigen Lokalzrezidive, welche nicht mehr chirurgisch behandelt werden können, ein bedeutendes klinisches Problem dar. Bei einer 71-jährigen Patientin wurde ein solches Rezidiv erfolgreich mit Imiquimodsalbe behandelt. Die Juckreizsymptome bildeten sich nach kurzer Zeit zurück. Nach 4 Wochen waren die kolposkopisch sichtbaren Hauterscheinungen rückläufig. Innerhalb von 8 Wochen kam es zu einer kompletten klinischen Remission. Die Lokalbehandlung mit Imiquimod ist demnach nicht nur bei der vulvären intraepithelialen Neoplasie erfolgversprechend, sondern stellt auch bei ausgewählten Patientinnen mit rezidivierendem Morbus Paget der Vulva eine konservative Behandlungsalternative dar.


Gynecological Endocrinology | 2010

Menstrual abnormalities and predisposition to pregnancy-related hypertensive disorders: a retrospective study

Arrigo Fruscalzo; Serena Bertozzi; Ambrogio P. Londero; Anna Biasioli; Lorenza Driul; Ludwig Kiesel; Diego Marchesoni

Objective. Pregnancy-related hypertensive disorders (PRHDs) are a leading cause of maternal and perinatal morbidity and mortality in developed countries. This study investigated a possible association of PRHDs with menstrual abnormalities. Materials and Methods. We contacted all women with PRHDs who delivered in our clinic between 2004 and 2007 as well as a random control cohort without pregnancy complications and asked them about their menstrual cycle characteristics. Statistical analyses were performed using R, with significance set at p < 0.05. Results. We collected data for 237 women with normal pregnancies and 255 women with PRHDs, among whom 143 had gestational hypertension and 70 had mild and 41 severe preeclampsia. By monovariate analysis, PRHDs correlated with dysmenorrhoea, hypermenorrhoea and menstrual irregularity (p < 0.05). By multivariate analysis, the occurrence of PRHDs was influenced by dysmenorrhoea and menstrual irregularity (p < 0.05). Conclusions. PRHDs usually affect women with painful or irregular menstrual cycles, perhaps due to metabolic syndrome or molecular pathways involving vasoactive substances, with clear vascular implications.


Clinical Breast Cancer | 2014

Type of Breast Cancer Diagnosis, Screening, and Survival

Carla Cedolini; Serena Bertozzi; Ambrogio P. Londero; Sergio Bernardi; Luca Seriau; Serena Concina; Federico Cattin; Andrea Risaliti

INTRODUCTION Breast cancer screening is known to reduce mortality. In the present study, we analyzed the prevalence of breast cancers detected through screening, before and after introduction of an organized screening, and we evaluated the overall survival of these patients in comparison with women with an extrascreening imaging-detected breast cancer or those with palpable breast cancers. MATERIALS AND METHODS We collected data about all women who underwent a breast operation for cancer in our department between 2001 and 2008, focusing on type of tumor diagnosis, tumor characteristics, therapies administered, and patient outcome in terms of overall survival, and recurrences. Data was analyzed by R (version 2.15.2), and P < .05 was considered significant. RESULTS Among the 2070 cases of invasive breast cancer we considered, 157 were detected by regional mammographic screening (group A), 843 by extrascreening breast imaging (group B: 507 by mammography and 336 by ultrasound), and 1070 by extrascreening breast objective examination (group C). The 5-year overall survival in groups A, B, and C were, respectively, 99% (95% CI, 98%-100%), 98% (95% CI, 97%-99%), and 91% (95% CI, 90%-93%), with a significant difference between the first 2 groups and the third (P < .05) and a trend between groups A and B (P = .081). CONCLUSION The diagnosis of invasive breast cancer with screening in our population resulted in a survival gain at 5 years from the diagnosis, but a longer follow-up is necessary to confirm this data.


World Journal of Surgery | 2013

Incidence and risk factors of the intraoperative localization failure of nonpalpable breast lesions by radio-guided occult lesion localization: a retrospective analysis of 579 cases: reply.

Sergio Bernardi; Serena Bertozzi; Ambrogio P. Londero

Background The radio-guided occult lesion localization (ROLL) technique allows the identification of nonpalpable breast lesions by means of the preoperative, intratumoral injection of a radiotracer. Our study aimed to determine the incidence and risk factors of ROLL failure.


Journal of Maternal-fetal & Neonatal Medicine | 2014

New and old predictive factors for breech presentation: our experience in 14 433 singleton pregnancies and a literature review

Arrigo Fruscalzo; Ambrogio P. Londero; Stefania Salvador; Serena Bertozzi; Anna Biasioli; Monica Della Martina; Lorenza Driul; Diego Marchesoni

Abstract Objective: Breech presentation represents a common indication for primary cesarean section in women presenting for parturition. This study aims to investigate the presence of new and old risk factors for breech presentation and to provide a literature review. Method: In this population-based retrospective cohort study, we collected data from 14 433 consecutive singleton deliveries occurred in a 3rd level hospital setting of northeast Italy between January 2001 and July 2009. Related risk factors and trends in breech presentation prevalence were also considered. Results: Mean maternal age was 31.78 years (±5.17) and mean gestational age at delivery 38.67 weeks (±2.54). Breech presentation prevalence in nullipara and pluripara was respectively 5.36% (415/7743) and 3.53% (236/6689; p < 0.05), and was significantly lower among Sub-Saharan-African women 2.62% (14/535) versus 4.51% (651/14432; p < 0.05). Also advanced maternal age, early gestational age at delivery, neonatal female gender and low weight at delivery resulted associated with a higher prevalence of breech presentation. By multivariate logistic regression, the breech presentation resulted independently predicted by maternal age, ethnicity, parity, gestational age and neonatal weight MoMs at delivery, and neonatal gender. Conclusions: Advanced maternal age, early gestational age, low neonatal weight MoMs at delivery and female gender resulted to be risk factors for fetal breech presentation at delivery, while multiparity and Sub-Saharan-African ethnicity resulted to be protective.


Gynecological Endocrinology | 2013

High placental index and poor pregnancy outcomes: a retrospective study of 18,386 pregnancies.

Ambrogio P. Londero; Serena Bertozzi; Silvia Visentin; Arrigo Fruscalzo; Lorenza Driul; Diego Marchesoni

Abstract Introduction: Our aim was to state the correlation between placental index and pregnancy outcomes or in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) pregnancies. Materials and methods: We included in this retrospective study all singleton births in a third level clinic during the period 2001–2011 (n = 18 386). We divided placental index into quartiles and analyzed the differences between the groups in term of pregnancy outcomes. Then, we estimated crude and adjusted odds ratios (ORs) for placental index over the third centile of the distribution to correlate with pregnancy outcomes. We also analyzed the correlation between IVF/ICSI conceived pregnancies and placental index. Results: Poor pregnancy outcomes were overrepresented in the highest quartile of placental index distribution. Thus, placental index was higher in pregnancies characterized by pregnancy-related hypertensive disorders (PRHDs), small for gestational age infants, newborn needing cardiopulmonary resuscitation or hospitalization in neonatal intensive care unit. These findings were independent of maternal age, length of gestation at delivery, IVF/ICSI conception and ethnicity. For IVF/ICSI pregnancies, the OR for being over the third quartile of placental index distribution was 2.01 (CI.95 1.40–2.90) after adjustment for maternal age, length of gestation, ethnicity, birth weight, parity, fetal sex, alteration of glucose metabolism in pregnancy and PRHDs. Conclusions: We found a high placental index among pregnancies characterized by poor outcomes and conceived by IVF/ICSI.


BMC Women's Health | 2011

Impact of episiotomy on pelvic floor disorders and their influence on women's wellness after the sixth month postpartum: a retrospective study

Serena Bertozzi; Ambrogio P. Londero; Arrigo Fruscalzo; Lorenza Driul; Cristina Delneri; Angelo Calcagno; Paolo Di Benedetto; Diego Marchesoni

BackgroundThe role of episiotomy as a protective factor against pelvic floor disorders postpartum has been debated for many years, but its routine use has been hitherto discouraged in the literature. Comparisons between restrictive and routine use of episiotomy in existent literature, however, fail to include any consideration relating to quality of life. The aim of this study, therefore, is to state the role of episiotomy in preserving the perineum from damage, in order to prevent the influence of pelvic floor disorders on womens psycho-physical wellness after the sixth month postpartum.MethodsA follow-up telephone interview was performed among 377 primiparous and secondiparous Caucasian women who had a child by spontaneous or operative vaginal delivery in 2006 using a self-created questionnaire and Kings Health Questionnaire (KHQ).ResultsThe mean age at delivery was 35.26 (±4.68) years and episiotomy was performed in 59.2% of women. Multivariate linear regression shows episiotomy associated to higher quality of life after the sixth month postpartum by correlating with inferior values of Kings Health Questionnaire (p < 0.05).ConclusionsEpisiotomy appears to be a protective factor for womens wellness. Women who had episiotomy and who experienced perineal symptoms have a better psycho-physical health status in the 12.79 months (±3.3) follow-up.


Medicine | 2015

Surgery for Liver Metastases From Gastric Cancer: A Meta-Analysis of Observational Studies.

Luca Martella; Serena Bertozzi; Ambrogio P. Londero; Agostino Steffan; Paolo De Paoli; Giulio Bertola

Abstract The role of surgical therapy in patients with liver metastases from gastric cancer is still controversial. In this study, we investigated the results obtained with local treatment of hepatic metastases in patients with gastric cancer, by performing a systematic literature review and meta-analysis. We performed a systematic review and meta-analysis of observational studies published between 1990 and 2014. These works included multiple studies that evaluated the different survival rate among patients who underwent local treatment, such as hepatectomy or radiofrequency ablation, for hepatic metastases derived from primary gastric cancer. The collected studies were evaluated for heterogeneity, publication bias, and quality, and a pooled hazard ratio (HR) was calculated with a confidence interval estimated at 95% (95% CI). After conducting a thorough research among all published works, 2337 studies were found and after the review process 11 observational studies were included in the analysis. The total amount of patients considered in the survival analysis was 1010. An accurate analysis of all included studies reported a significantly higher survival rate in the group of patients who underwent the most aggressive local treatment for hepatic metastases (HR 0.54, 95% CI 0.46–0.95) as opposed to patients who underwent only palliation or systemic treatment. Furthermore, palliative local treatment of hepatic metastases had a higher survival rate if compared to surgical (without liver surgery) and systemic palliation (HR 0.50, 95% CI 0.26–0.96). Considering the only 3 studies where data from multivariate analyses was available, we found a higher survival rate in the local treatment groups, but the difference was not significant (HR 0.50, 95% CI 0.22–1.15). Curative and also palliative surgery of liver metastases from gastric cancer may improve patients’ survival. However, further trials are needed in order to better understand the role of surgery in this group of patients.


Gynecological Endocrinology | 2013

Retinol binding protein as early marker of fetal growth restriction in first trimester maternal serum.

Arrigo Fruscalzo; Anna Biasioli; Ambrogio P. Londero; Maria Ceraudo; Giuliana Stel; Serena Bertozzi; Diego Marchesoni; Lorenza Driul; Francesco Curcio

Abstract Background: Serum retinol binding protein (RBP4) is the binding protein for retinol, being delivered into the circulation through the carrier protein transthyretin (TTR) together with thyroxin (T4). RBP4 has also been recently indicated as a new adipokine implicated in insulin resistance and metabolism regulation. Objective: To investigate the role of RBP4 as early markers of fetal growth restriction (FGR) and preeclampsia (PE) in maternal serum during the first trimester of pregnancy. Materials and methods: Retrospective case control study in patients between the 12th and the 14th week of gestation. RBP4, TTR and T4 concentration was assessed in maternal serum of three groups of women: 15 and 14 patients later developing respectively FGR and PE were compared with 11 patients having a normal pregnancy. Results: All women were Caucasian and the mean maternal age was 33.62 years (±5.50). RBP4 resulted lower in the FGR than in the control group (11.00 versus 16.00 µg/ml, p < 0.05) and than in the PE group (15.00 µg/ml, p = 0.075), both in bivariate and multivariate analysis. No difference was observed in TTR and T4 concentration. Conclusions: RBP4 seems to play a role as early marker of FGR but not PE in first trimester maternal serum.

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