27 research outputs found
Interfacility transfers in a non-trauma system setting: an assessment of the Greek reality
<p>Abstract</p> <p>Background</p> <p>Quality assessment of any trauma system involves the evaluation of the transferring patterns. This study aims to assess interfacility transfers in the absence of a formal trauma system setting and to estimate the benefits from implementing a more organized structure.</p> <p>Methods</p> <p>The 'Report of the Epidemiology and Management of Trauma in Greece' is a one year project of trauma patient reporting throughout the country. It provided data concerning the patterns of interfacility transfers. We compared the transferred patient group to the non transferred patient group. Information reviewed included patient and injury characteristics, need for an operation, Intensive Care Unit (ICU) admittance and mortality. Analysis employed descriptive statistics and Chi-square test. Interfacility transfers were then assessed according to each health care facility's availability of five requirements; Computed Tomography scanner, ICU, neurosurgeon, orthopedic and vascular surgeon.</p> <p>Results</p> <p>Data on 8,524 patients were analyzed; 86.3% were treated at the same facility, whereas 13.7% were transferred. Transferred patients tended to be younger, male, and more severely injured than non transferred patients. Moreover, they were admitted to ICU more often, had a higher mortality rate but were less operated on compared to non transferred patients. The 34.3% of transfers was from facilities with none of the five requirements, whereas the 12.4% was from those with one requirement. Low level facilities, with up to three requirements transferred 43.2% of their transfer volume to units of equal resources.</p> <p>Conclusion</p> <p>Trauma management in Greece results in a high number of transfers. Patients are frequently transferred between low level facilities. Better coordination could lead to improved outcomes and less cost.</p
Epidemiology, practice of ventilation and outcome for patients at increased risk of postoperative pulmonary complications: LAS VEGAS - An observational study in 29 countries
BACKGROUND Limited information exists about the epidemiology and outcome of surgical patients at increased risk of postoperative pulmonary complications (PPCs), and how intraoperative ventilation was managed in these patients. OBJECTIVES To determine the incidence of surgical patients at increased risk of PPCs, and to compare the intraoperative ventilation management and postoperative outcomes with patients at low risk of PPCs. DESIGN This was a prospective international 1-week observational study using the ‘Assess Respiratory Risk in Surgical Patients in Catalonia risk score’ (ARISCAT score) for PPC for risk stratification. PATIENTS AND SETTING Adult patients requiring intraoperative ventilation during general anaesthesia for surgery in 146 hospitals across 29 countries. MAIN OUTCOME MEASURES The primary outcome was the incidence of patients at increased risk of PPCs based on the ARISCAT score. Secondary outcomes included intraoperative ventilatory management and clinical outcomes. RESULTS A total of 9864 patients fulfilled the inclusion criteria. The incidence of patients at increased risk was 28.4%. The most frequently chosen tidal volume (V T) size was 500 ml, or 7 to 9 ml kg−1 predicted body weight, slightly lower in patients at increased risk of PPCs. Levels of positive end-expiratory pressure (PEEP) were slightly higher in patients at increased risk of PPCs, with 14.3% receiving more than 5 cmH2O PEEP compared with 7.6% in patients at low risk of PPCs (P ˂ 0.001). Patients with a predicted preoperative increased risk of PPCs developed PPCs more frequently: 19 versus 7%, relative risk (RR) 3.16 (95% confidence interval 2.76 to 3.61), P ˂ 0.001) and had longer hospital stays. The only ventilatory factor associated with the occurrence of PPCs was the peak pressure. CONCLUSION The incidence of patients with a predicted increased risk of PPCs is high. A large proportion of patients receive high V T and low PEEP levels. PPCs occur frequently in patients at increased risk, with worse clinical outcome.</p
31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two
Background
The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd.
Methods
We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background.
Results
First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001).
Conclusions
In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival
Effect of antinuclear antibodies on pharmacokinetics of anti-TNF therapy in patients with inflammatory bowel disease
Purpose The detection of antinuclear antibodies (ANA) in serum of
patients with inflammatory bowel disease (IBD) has been associated with
a worse response to anti-TNF therapy and the development of cutaneous or
arthritic manifestations. The aim of this study was to investigate a
possible association of serum ANA with infliximab (IFX) and adalimumab
(ADA) trough levels (TLs) and anti-drug antibodies in IBD patients
treated with IFX or ADA. Methods Consecutive IBD patients under
maintenance therapy with IFX or ADA in whom there was at least one
available measurement of anti-TNF TLs, antibodies to IFX or ADA, and ANA
in serum were included. The correlation of ANA positivity with
demographics, clinical characteristics, treatment, TLs and anti-drug
antibodies, of all patients was analyzed. Results One hundred two IBD
patients under maintenance therapy with IFX or ADA were enrolled. Of
these, 53 (52%) were ANA positive with 28 (27.5%) positive also to
anti-ds-DNA in serum. In the univariate analysis ANA positivity was
found to be correlated with age (P = 0.008), female gender (P = 0.03),
duration of treatment (P = 0.06), arthralgias (P = 0.04) and TLs (P =
0.005). However, in multivariate logistic regression analysis only age
and TLs remained significantly associated with the presence of ANA
positivity (P = 0.04 and P = = 0.006, respectively). No significant
association of ANA positivity with the development of cutaneous or
rheumatological manifestations was found. Conclusions In IBD patients
under maintenance therapy with anti-TNF ANA positivity is associated
with lower TLs. The clinical significance of this finding remains to be
defined in future larger prospective studies
Emergency room management of trauma patients in Greece: Preliminary report of a national study
Aim of the study: The aim of this study was to record and to evaluate
the epidemiology of trauma in Greece and to assess the quality of
management provided for trauma patients in the emergency department in
Greek hospitals.
Methods: The Hellenic Society of Trauma and Emergency Surgery invited
all the official representatives of the society throughout the country
to participate in the study. The representatives that responded
positively, met with the Board of the society in succeeding meetings to
establish the reporting form and the inclusion criteria. Inclusion
criteria were defined as trauma patients requiring admission, transfer
to a higher level center or arrived dead or died in the emergency
department of the reporting hospital. All reports were accumulated by
the Hellenic Trauma society, imported in an electronic data base and
analyzed. The design of the study was prospective and observational.
Results: In total 8862 patients were included in the study in 12 months
time. Of them 68.7% (n = 6084) were male, aged 41.8 +/- 20.6 (mean +/-
S.D.) and 31.3% were female (n = 2778), aged 52.7 +/- 24.1 (mean +/-
S.D.). The mean duration of treatment in the emergency room department
was I h and 28 min. Of the total number of patients, 2312 (26.1 %) were
initially assessed and managed by a specialist and 6249 (70.5%) were
initially assessed and managed by a resident.
Conclusions: Data from this study show that there is substantial room
for improvement in the patient care in the emergency department
following trauma. Further evaluation will be required to identify
particular management patterns that can be readily altered. (C) 2008
Elsevier Ireland Ltd. All rights reserved
The Implementation of a National Trauma Registry in Greece. Methodology and Preliminary Results
Background: Trauma is a leading cause of death worldwide and a major
health problem of the modem society. Trauma systems are considered the
gold standard of managing patients with trauma. An integral part of any
trauma system is a trauma registry. In Europe, and particularly in
Greece, trauma registries and systems are in an embryonic stage. In this
study, we present an attempt to record trauma in Greece.
Methods: The Hellenic Society of Trauma and Emergency Surgery invited
all the official representatives of the society throughout the country
to participate in the study. In succeeding meetings of the
representatives, the reporting form was developed and the inclusion
criteria were defined meticulously. Inclusion criteria were defined as
patients with trauma requiring admission, transfer to a higher level
center, or arrived dead or died in the emergency department of the
reporting hospital. All reports were accumulated by the Hellenic Trauma
society, imported in an electronic database, and analyzed.
Results: Thirty-two hospitals receiving patients with trauma
participated in the country, representing 40% of the country’s
healthcare facilities and serving 40% of the country’s population. In
12 months time, (October 2005 to September 2006), 8,862 patients were
included in the study. Of them, 66.9% were men and 31.3% were women.
The compilation rate of the reporting forms was surprisingly high,
considering that the final reporting form included 150 data points and
that there were no independent personnel in charge of filling the forms.
Conclusions: Trauma registries are feasible even in health care systems
where funding of medical research is sparse
Interfacility transfers in a non-trauma system setting: an assessment of the Greek reality
Background: Quality assessment of any trauma system involves the
evaluation of the transferring patterns. This study aims to assess
interfacility transfers in the absence of a formal trauma system setting
and to estimate the benefits from implementing a more organized
structure.
Methods: The ‘Report of the Epidemiology and Management of Trauma in
Greece’ is a one year project of trauma patient reporting throughout the
country. It provided data concerning the patterns of interfacility
transfers. We compared the transferred patient group to the non
transferred patient group. Information reviewed included patient and
injury characteristics, need for an operation, Intensive Care Unit (ICU)
admittance and mortality. Analysis employed descriptive statistics and
Chi-square test. Interfacility transfers were then assessed according to
each health care facility’s availability of five requirements; Computed
Tomography scanner, ICU, neurosurgeon, orthopedic and vascular surgeon.
Results: Data on 8,524 patients were analyzed; 86.3% were treated at
the same facility, whereas 13.7% were transferred. Transferred patients
tended to be younger, male, and more severely injured than non
transferred patients. Moreover, they were admitted to ICU more often,
had a higher mortality rate but were less operated on compared to non
transferred patients. The 34.3% of transfers was from facilities with
none of the five requirements, whereas the 12.4% was from those with
one requirement. Low level facilities, with up to three requirements
transferred 43.2% of their transfer volume to units of equal resources.
Conclusion: Trauma management in Greece results in a high number of
transfers. Patients are frequently transferred between low level
facilities. Better coordination could lead to improved outcomes and less
cost