Prognosis and serum creatinine levels in acute renal failure at the time of nephrology consultation: an observational cohort study

The aim of this study is to evaluate the association between acute serum creatinine changes in acute renal failure (ARF), before specialized treatment begins, and in-hospital mortality, recovery of renal function, and overall mortality at 6 months, on an equal degree of ARF severity, using the RIFLE criteria, and comorbid illnesses. METHODS: Prospective cohort study of 1008 consecutive patients who had been diagnosed as having ARF, and had been admitted in an university-affiliated hospital over 10 years. Demographic, clinical information and outcomes were measured. After that, 646 patients who had presented enough increment in serum creatinine to qualify for the RIFLE criteria were included for subsequent analysis. The population was divided into two groups using the median serum creatinine change (101%) as the cut-off value. Multivariate non-conditional logistic and linear regression models were used. RESULTS: A >or= 101% increment of creatinine respect to its baseline before nephrology consultation was associated with significant increase of in-hospital mortality (35.6% vs. 22.6%, p < 0.001), with an adjusted odds ratio of 1.81 (95% CI: 1.08-3.03). Patients who required continuous renal replacement therapy in the >or= 101% increment group presented a higher increase of in-hospital mortality (62.7% vs 46.4%, p = 0.048), with an adjusted odds ratio of 2.66 (95% CI: 1.00-7.21). Patients in the >or= 101% increment group had a higher mean serum creatinine level with respect to their baseline level (114.72% vs. 37.96%) at hospital discharge. This was an adjusted 48.92% (95% CI: 13.05-84.79) more serum creatinine than in the < 101% increment group. CONCLUSION: In this cohort, patients who had presented an increment in serum level of creatinine of >or= 101% with respect to basal values, at the time of nephrology consultation, had increased mortality rates and were discharged from hospital with a more deteriorated renal function than those with similar Liano scoring and the same RIFLE classes, but with a < 101% increment. This finding may provide more information about the factors involved in the prognosis of ARF. Furthermore, the calculation of relative serum creatinine increase could be used as a practical tool to identify those patients at risk, and that would benefit from an intensive therapy

understanding the mechanisms of glutamine action in critically ill patients

Glutamine (Gln) is an important energy source and has been used as a supplementary energy substrate. Furthermore, Gln is an essential component for numerous metabolic functions, including acid-base homeostasis, gluconeogenesis, nitrogen transport and synthesis of proteins and nucleic acids. Therefore, glutamine plays a significant role in cell homeostasis and organ metabolism. This article aims to review the mechanisms of glutamine action during severe illnesses. In critically ill patients, the increase in mortality was associated with a decreased plasma Gln concentration. During catabolic stress, Gln consumption rate exceeds the supply, and both plasma and skeletal muscle pools of free Gln are severely reduced. The dose and route of Gln administration clearly influence its effectiveness: high-dose parenteral appears to be more beneficial than low-dose enteral administration. Experimental studies reported that Gln may protect cells, tissues, and whole organisms from stress and injury through the following mechanisms: attenuation of NF (nuclear factor)-kB activation, a balance between pro- and anti-inflammatory cytokines, reduction in neutrophil accumulation, improvement in intestinal integrity and immune cell function, and enhanced of heat shock protein expression. In conclusion, high-doses of parenteral Gln (>0.50 g/kg/day) demonstrate a greater potential to benefit in critically ill patients, although Gln pathophysiological mechanisms requires elucidation

What is the role of the placebo effect for pain relief in neurorehabilitation? Clinical implications from the Italian Consensus Conference on Pain in Neurorehabilitation

Background: It is increasingly acknowledged that the outcomes of medical treatments are influenced by the context of the clinical encounter through the mechanisms of the placebo effect. The phenomenon of placebo analgesia might be exploited to maximize the efficacy of neurorehabilitation treatments. Since its intensity varies across neurological disorders, the Italian Consensus Conference on Pain in Neurorehabilitation (ICCP) summarized the studies on this field to provide guidance on its use. Methods: A review of the existing reviews and meta-analyses was performed to assess the magnitude of the placebo effect in disorders that may undergo neurorehabilitation treatment. The search was performed on Pubmed using placebo, pain, and the names of neurological disorders as keywords. Methodological quality was assessed using a pre-existing checklist. Data about the magnitude of the placebo effect were extracted from the included reviews and were commented in a narrative form. Results: 11 articles were included in this review. Placebo treatments showed weak effects in central neuropathic pain (pain reduction from 0.44 to 0.66 on a 0-10 scale) and moderate effects in postherpetic neuralgia (1.16), in diabetic peripheral neuropathy (1.45), and in pain associated to HIV (1.82). Moderate effects were also found on pain due to fibromyalgia and migraine; only weak short-term effects were found in complex regional pain syndrome. Confounding variables might have influenced these results. Clinical implications: These estimates should be interpreted with caution, but underscore that the placebo effect can be exploited in neurorehabilitation programs. It is not necessary to conceal its use from the patient. Knowledge of placebo mechanisms can be used to shape the doctor-patient relationship, to reduce the use of analgesic drugs and to train the patient to become an active agent of the therapy

Psychological considerations in the assessment and treatment of pain in neurorehabilitation and psychological factors predictive of therapeutic response: Evidence and recommendations from the Italian consensus conference on pain in neurorehabilitation

In order to provide effective care to patients suffering from chronic pain secondary to neurological diseases, health professionals must appraise the role of the psychosocial factors in the genesis and maintenance of this condition whilst considering how emotions and cognitions influence the course of treatment. Furthermore, it is important not only to recognize the psychological reactions to pain that are common to the various conditions, but also to evaluate how these syndromes differ with regards to the psychological factors that may be involved. As an extensive evaluation of these factors is still lacking, the Italian Consensus Conference on Pain in Neurorehabilitation (ICCPN) aimed to collate the evidence available across these topics

Time for a consensus conference on pain in neurorehabilitation

Time for a Consensus Conference on pain in neurorehabilitation

Time for a consensus conference on pain in neurorehabilitation

O uso do enxerto autólogo de gordura ou lipoenxertia (termo em inglês - “lipofilling”) na reconstrução imediata da cirurgia conservadora de mama vem sendo aplicada a fim de atingir resultado estético satisfatório na primeira cirurgia para o câncer de mama em pacientes com relação tumor/mama desfavorável ou em localização de difícil reparo. A segurança oncológica da técnica ainda é discutida devido ao pouco número de pacientes em seguimento. Objetivo: determinar se há diferença nas taxas de recidiva local e sobrevida livre de doença em relação à realização ou não de lipoenxertia imediata na cirurgia conservadora. Metodologia: Foram selecionados retrospectivamente os pacientes submetidos à cirurgia conservadora com ou sem lipoenxertia entre 2004 e 2016. Os grupos foram pareados por idade, estadiamento, grau e perfil imuno-histoquímico do tumor. Os pacientes foram acompanhados por uma média de 60 meses e as taxas de recorrência e sobrevida livre de doença foram avaliadas. Resultados: 320 pacientes acompanhadas, casos pareados com controles na proporção de 1:4. Não foram observadas diferenças significativas na recorrência loco-regional (LRR) das pacientes que foram submetidas à lipoenxertia simultaneamente à cirurgia conservadora em comparação com os controles, LRR 0,86% ao ano x 0,70% ao ano, p => 0,05, respectivamente. Não houve diferenças na sobrevida livre de doença entre os grupos. Conclusão: Após 60 meses de seguimento, não houve diferença significativa nas taxas de recorrência loco-regional entre o grupo de lipoenxertia imediata e o grupo controle. Esses achados sugerem a segurança oncológica da reconstrução imediata com a lipoenxertia, propondo a técnica como eficaz, segura e com ótimo resultado estético para o câncer de mama.Importance: Autologous fat grafting (AFG), or lipofilling, has been used for immediate reconstruction at the time of breast-conserving surgery in order to achieve a satisfactory cosmetic outcome in patients with breast cancer and an unfavorable tumor-to-breast volume ratio or unfavorable tumor location. However, the oncologic safety of this technique is still unclear. Objective: To determine whether AFG performed simultaneously with breast-conserving surgery is associated with differences in local relapse rates and disease-free survival. Design: Matched retrospective cohort study. Setting: Tertiary referral center. Participants: Patients undergoing breast-conserving surgery with or without AFG between 2004 and 2016 were retrospectively enrolled and matched for age, staging, grade, tumor histology, and tumor immunohistochemical profile. Main Outcome(s) And Measure(s): The cumulative incidence of locoregional recurrence (LRR) and disease-free survival were the primary end points, while distant recurrence and overall survival were the secondary end points. Results: A total of 320 patients were followed. Cases were matched with controls at a 1:4 ratio. There was no difference in LRR or distant recurrence of breast cancer between the two groups. The annual LRR rate was 0.86% in patients who received immediate AFG vs. 0.7% in patients undergoing breast-conserving surgery alone (P≥0.05). Number of lymph nodes was the sole independent risk factor for local recurrence (p=0.045). No significant differences in disease-free survival rates were found between the groups. Conclusions and Relevance: At a mean follow-up of 5 years, no significant differences in locoregional recurrence rates were found between patients who received immediate AFG and those who underwent breast-conserving surgery alone. These findings corroborate previous research demonstrating the oncological safety of immediate AFG reconstruction, further suggesting that this technique as a safe, effective way to achieve optimal cosmetic outcomes in primary breast cancer surgery without jeopardizing oncologic outcomes

Time for a Consensus Conference on pain in neurorehabilitation.

Pain represents a common problem in the setting of neurorehabilitation, in that it is a common outcome measure but may also have a negative effect on motor and cognitive outcomes. Guidelines, expert opinions or consensus statements on pain in neurorehabilitation are largely lacking. The Italian Consensus Conference on Pain in Neurorehabilitation (ICCPN) was promoted to answer some questions on this topic, and its recommendations may offer practical and useful information and represent the basis for future studies on pain in neurorehabilitation

Time for a Consensus Conference on pain in neurorehabilitation

Time for a Consensus Conference on pain in neurorehabilitation