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result(s) for
"Pieri, A"
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Emergency surgery during the COVID-19 pandemic: what you need to know for practice
by
Chouillard, E
,
Coccolini, F
,
Ansaloni, L
in
Abdomen
,
Abdomen, Acute - complications
,
Abdomen, Acute - surgery
2020
Several articles have been published about the reorganisation of surgical activity during the COVID-19 pandemic but few, if any, have focused on the impact that this has had on emergency and trauma surgery. Our aim was to review the most current data on COVID-19 to provide essential suggestions on how to manage the acute abdomen during the pandemic.
A systematic review was conducted of the most relevant English language articles on COVID-19 and surgery published between 15 December 2019 and 30 March 2020.
Access to the operating theatre is almost exclusively restricted to emergencies and oncological procedures. The use of laparoscopy in COVID-19 positive patients should be cautiously considered. The main risk lies in the presence of the virus in the pneumoperitoneum: the aerosol released in the operating theatre could contaminate both staff and the environment.
During the COVID-19 pandemic, all efforts should be deployed in order to evaluate the feasibility of postponing surgery until the patient is no longer considered potentially infectious or at risk of perioperative complications. If surgery is deemed necessary, the emergency surgeon must minimise the risk of exposure to the virus by involving a minimal number of healthcare staff and shortening the occupation of the operating theatre. In case of a lack of security measures to enable safe laparoscopy, open surgery should be considered.
Journal Article
Graft-versus-host disease: a case report of a rare but reversible cause of constrictive pericarditis
by
Gribben, John
,
Manisty, Charlotte
,
Pieri, Christopher A
in
Case Report
,
Chemotherapy
,
Etiology
2020
Abstract
Background
Constrictive pericarditis (CP), although an uncommon cause of heart failure, requires specialist multidisciplinary input and multi-modality imaging to identify the underlying aetiology and treat potentially reversible causes.
Case summary
We report the case of a 74-year-old gentleman referred for assessment of progressive exertional dyspnoea and peripheral oedema, 30 months following treatment of acute myeloid leukaemia with high-dose chemotherapy and allogeneic stem cell transplantation. Clinical examination and cardiac imaging revealed a small pericardial effusion and pericardial thickening with constrictive physiology; however, no aetiology was identified despite diagnostic pericardiocentesis. The patient required recurrent hospital admissions for intravenous diuresis, therefore, following multidisciplinary discussions, surgical partial pericardectomy was performed. Histology suggested graft-vs.-host disease (GvHD) and post-operatively, the patient improved clinically. Following immunomodulatory therapy with ruxolitinib for both pericardial and pulmonary GvHD, his functional status improved further with no subsequent hospital admissions.
Discussion
Although pericardial disease in cancer patients is common, CP is unusual. Determining the underlying aetiology is important for subsequent management, and here, we describe the use of multi-modality imaging to diagnose a rare cause, GvHD, which responded to surgical treatment and immunomodulatory therapy.
Journal Article
Genetic factors regulating inflammation and DNA methylation associated with prostate cancer
2013
Background:
Prostate cancer (PCa) displays a strong familiarity component and genetic factors; genes regulating inflammation may have a pivotal role in the disease. Epigenetic changes control chromosomal integrity, gene functions and ultimately carcinogenesis. The enzyme glycine-
N
-methyltransferase (
GNMT
) contributes to S-adenosylmethionine level regulation and, by affecting DNA methylation, influences gene expression. The genotype and allele distribution of single-nucleotide polymorphisms (SNPs) in the promoter regions of vascular endothelial growth factor (
VEGF
), interleukin (
IL
)
-10
,
IL-1
β, alpha-1-antichymotrypsin (
ACT
) and
GNMT
genes, the level of global DNA methylation and the influence of
GNMT
SNP upon DNA methylation in a PCa case–control study have been investigated.
Methods:
SNPs of
VEGF
(rs699947),
ACT
(rs1884082),
IL-1
β (rs16944),
IL-10
(rs1800896) and
GNMT
(rs9462856) genes were assessed by PCR or by real-time PCR methods. DNA methylation was assessed by an ELISA assay.
Results:
Frequencies of the
VEGF
AA genotype, the
IL-10
A allele and
GNMT
T allele were higher in PCa. The concomitant presence of the AA genotype of
VEGF
, the A allele of
IL-10
and T allele of
GNMT
increased the risk of PCa. Total DNA methylation was decreased in PCa; control
GNMT
T carriers (T+) showed the highest level of DNA methylation.
Conclusions:
SNPs in
VEGF
,
IL-10
and
GNMT
genes might have a synergistic role in the development of PCa. The
GNMT
T allele may influence PCa risk by affecting DNA methylation and prostate gene expression. Our observations might help implement the screening of unaffected subjects with an increased susceptibility to develop PCa.
Journal Article
Widespread Expression of BORIS/CTCFL in Normal and Cancer Cells
2011
BORIS (CTCFL) is the paralog of CTCF (CCCTC-binding factor; NM_006565), a ubiquitously expressed DNA-binding protein with diverse roles in gene expression and chromatin organisation. BORIS and CTCF have virtually identical zinc finger domains, yet display major differences in their respective C- and N-terminal regions. Unlike CTCF, BORIS expression has been reported only in the testis and certain malignancies, leading to its classification as a \"cancer-testis\" antigen. However, the expression pattern of BORIS is both a significant and unresolved question in the field of DNA binding proteins. Here, we identify BORIS in the cytoplasm and nucleus of a wide range of normal and cancer cells. We compare the localization of CTCF and BORIS in the nucleus and demonstrate enrichment of BORIS within the nucleolus, inside the nucleolin core structure and adjacent to fibrillarin in the dense fibrillar component. In contrast, CTCF is not enriched in the nucleolus. Live imaging of cells transiently transfected with GFP tagged BORIS confirmed the nucleolar accumulation of BORIS. While BORIS transcript levels are low compared to CTCF, its protein levels are readily detectable. These findings show that BORIS expression is more widespread than previously believed, and suggest a role for BORIS in nucleolar function.
Journal Article
Primary prevention of deep venous thrombosis and pulmonary embolism in acute spinal cord injured patients
by
Aito, S
,
D'Andrea, M
,
Cominelli, E
in
Acute Disease
,
Bandages
,
Biological and medical sciences
2002
Prospective clinical trial.
To evaluate the efficacy of a specific protocol for prevention of thrombo-embolic disease occurring during the acute stage of spinal cord lesions, based on the simultaneous use of pharmacological plus mechanical procedures.
Regional Spinal Unit of Florence, Italy.
Deep venous thrombosis (DVT) is a dangerous pathology whose first clinical sign can be represented by unexpected pulmonary embolism (PE). Its incidence in acute spinal cord injured (SCI) patients is reported to range between 9% and 90%. Its prevention represents one of the major challenges for the clinicians involved in the care of such patients.
Two hundred and seventy-five SCI patients consecutively admitted to our Centre were investigated by colour doppler ultrasonography of lower limbs and pelvis on admission, after 30-45 days and whenever clinically requested. Subcutaneous Nadroparine, a low molecular weight heparin (LMWH), plus early mobilisation, permanently dressed gradient elastic stockings (PGES), and external sequential pneumatic compression (ESPC) of the lower limbs, applied during the first 30 days after injury, were given to all of them. Colour doppler ultrasonography (CDUS) complete investigations of the lower limbs and pelvis were performed on admission, after 30-45 days and whenever clinically requested. The patients were divided into two groups according to their time interval from injury to the admission to our Centre.
The incidence of detected DVT was 2% in those patients (99) admitted early to our centre (within 72 h from the trauma), who immediately received our prophylactic protocol. No PE was reported. The other group of patients (176), all admitted between 8 and 28 days (mean 12 days) developed DVT in 26% of cases. None of these patients received ESPC before being admitted to our Centre. No patient had been admitted between 3 and 8 days interval time post injury.
Early application of pharmacological plus mechanical treatment for DVT prevention produces a marked reduction in such complications. It also reduces the risks of morbidity and mortality in our patients, and, not least, reduces the hospitalization costs during the early period of rehabilitation.
Journal Article
Estimating the surface and volume of laboratory-scale wildfire fuel using computer vision
2012
This work deals with fire spreading on inclined tables. The method is based on a stereovision framework based on the use of two synchronised stereovision systems. At each acquisition time, a three-dimensional shape of the fire front is reconstructed and from it the surface and the volume of the fire front are estimated. It is the first framework that is able to obtain this information from complex spreading fires. The accuracy of the system was evaluated using a physical model of a fire front and a specific shape of fuel with known position, thickness and width. The experimental results show that the obtained accuracy is within 4% using a physical model of fire. [PUBLICATION ABSTRACT]
Journal Article
Adherence and virulence genes of Escherichia coli from children diarrhoea in the Brazilian Amazon
by
Benevides-Matos, Najla
,
Orlandi, Patrícia P.
,
Pieri, Fabio A.
in
Bacterial Adhesion
,
Brazil
,
Child
2015
The bacterial pathogen most commonly associated with endemic forms of childhood diarrhoea is Escherichia coli . Studies of epidemiological characteristics of HEp-2 cell-adherent E. coli in diarrhoeal disease are required, particularly in developing countries. The aim of this study was evaluate the presence and significance of adherent Escherichia coli from diarrhoeal disease in children. The prevalence of LA, AA, and DA adherence patterns were determined in HEp-2 cells, the presence of virulence genes and the presence of the O serogroups in samples obtained from 470 children with acute diarrhoea and 407 controls in Porto Velho, Rondônia, Brazil. E. coli isolates were identified by PCR specific for groups of adherent E. coli . Out of 1,156 isolates obtained, 128 (11.0%) were positive for eae genes corresponding to EPEC, however only 38 (29.6%) of these amplified bfpA gene . EAEC were isolated from 164 (14.1%) samples; of those 41(25%), 32 (19%) and 16 (9.7%) amplified eagg , aggA or aafA genes, respectively and aggA was significantly associated with diarrhoea ( P = 0.00006). DAEC identified by their adhesion pattern and there were few isolates. In conclusion, EAEC was the main cause of diarrhoea in children, especially when the aggA gene was present, followed by EPEC and with a negligible presence of DAEC.
Journal Article
Pharmacological treatment of mechanical edema: a randomized controlled trial about the effects of mesoglycan
2009
Mechanical edema (MO) is frequently found in a lot of the lower extremities' orthopedic diseases. In absence of deep vein thrombosis, MO is caused by the change in the dynamics of calf muscle pump with venous hypertension and by the change in capillary permeability which offsets the extra-vascular fluid balance resulting in edema formation. The correct treatment includes specific training for musculo-skeletal and gait recovery, together with medical treatment focused on venous endothelium. Little information is available about pharmacological treatment of this condition. Some studies suggest the efficacy of mesoglycan in venous pathology. Aim of this study was to evaluate the clinical efficacy of the pharmacological treatment (mesoglycan 50 mg p.o., twice a day) in patients affected by MO.
Forty-four patients with MO, aged 20-89 years, were randomized in two treatment groups: specific physiotherapy (Fkt) alone or physiotherapy plus mesoglycan 50 mg twice a day, per os. The patients were evaluated before treatment (t0), and after 1 month of treatment (t1), measuring ankle joint range of motion (degrees), calf circumference and malleolar circumference (cm), pain Borg CR10 Scale and adapted lymphedema Weiss Scale. Statistical analysis was performed by the Pearson's c2 test and the Mann-Whitney-Wilcoxon test.
At the final evaluation of the objective and subjective parameters, the mesoglycan effect combined to the Fkt provided statistical differences on nearly all the parameters in comparison with the patients randomised to Fkt alone.
The present study suggest that mesoglycan treatment (50 mg p.o., twice a day) can improve the recovery of MO, and it is well tolerated by the patients. Specific physiotherapy remains the first treatment for the recovery of both muscular pump and correct walking, but the optimal treatment of MO seems to be a synergic approach, including both pharmacological and mobilization programs.
Journal Article
OC34 Durability of long acting cabotegravir and rilpivirine in a multicenter real-life cohort of people with HIV
by
Piacentini, D
,
Puzzolante, C
,
Lattuada, E
in
Cohort analysis
,
Human immunodeficiency virus
,
Morbidity
2025
BackgroundWe herein present a prospective multicenter experience on injectable cabotegravir and rilpivirine from 11 different HIV clinics in Northern Italy (Padova, Bologna, Belluno, Modena, Verona, Trento, Bolzano, Santorso, Rovigo, Treviso, Vicenza), focusing on the regimen durability, safety and tolerability in a real-life setting.Materials and MethodsFrom August 2022, we included all individuals who received at least one dose of injectable cabotegravir and rilpivirine across the 11 participating centers. We recorded demographic data and laboratory results, and assessed factors associated with treatment discontinuation (TD) for any cause and virological failure (VF), defined as two confirmed consecutive values of HIV RNA > 50 copies/ml or one single measurement of HIV RNA > 200 copies/ml. Kaplan-Meier curves were used to assess TD probability and logistic regression to identify significant predictors of TD and VF.Results483 PWH were included, mostly males (81.6%) and Caucasian (91.1%), with a median age of 49 (40–58) years, living with HIV for a median time of 12 (IQR:7–21) years, and a median CD4+ T cell count of 708 cell/mm3 (529–929). 45.5% and 7.5% had multimorbidity and polypharmacy, respectively. For 224 (43.6%) people HIV subtype was not available, 215 (44.5%) and 6 (1.2%) had a B and A subtype, respectively. 45.8% and 12.8% of participants had no genotype resistance test for INI and NNRTI at baseline, respectively, while participants before switching received a median number of 3 (IQR: 2–4) cART lines. 74.1% started LA according to their wish, and 51.8% coming from a dual oral cART (either dolutegravir/lamivudine or dolutegravir/rilpivirine).During a median time of 22 (IQR: 13–26) months of follow-up, 54 (11.1%) people had TD (incidence of TD was 6.24 person-months of follow-up). Figure 1 shows KM curve for TD. Most people discontinued to side effects (31, 6.4%), while 7 (1.4%) due to virological failure. Among these 71.4% reported major resistance mutations both to INI and NNRTI and were switched darunavir/cobicistat/tenofovir alafenamide/emtricitabine. The remaining 28.6% came back to the previous oral regimen. When multivariable analysis was performed, age, years living with HIV, CD4/CD8 ratio, and BMI were significantly associated with TD. Also, we detected that numbers of previous antiretroviral regimens and black-African ethnicity were significantly associated with VF.Abstract OC34 Figure 1ConclusionWhile the regimen demonstrated overall effectiveness, TD was observed in a specific subset of individuals, primarily due to side effects, with a smaller proportion experiencing VF. Factors we detected as associated with both TD and VF underscore the importance of personalized people selection and close monitoring to optimize long-acting ART outcomes. Further studies are warranted to refine strategies for mitigating treatment failure and improving regimen persistence.
Journal Article