Revista brasileira de cirurgia cardiovascular : órgão oficial da Sociedade Brasileira de Cirurgia Cardiovascular
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Rev Bras Cir Cardiovasc · Jul 2012
Proposal of an individual scientometric index with emphasis on ponderation of the effective contribution of the first author: h-fac índex.
In the individual assessment of a scientific performance, five scientometric indices have been used most: the h-index, the index g, the h-major index, the contemporary h-index and the normalized h-index. We propose an alternative index ("Index h-fac"), which considers positively the participation of the first author and that, by having a dynamic characteristic, continuously monitors his/her performance and is easily adaptable to particular or individual situations from different research groups. Results from the geometric mean between the original h-index as proposed by Hirsh and a correction factor ("fac", "first author commitment") and, in turn, this value is divided by the mean interval (in years) of all studies. ⋯ The new index also considers the total number of citations as first author and as co-author, the average number of coauthors per publication and the total number of papers published. Theoretical examples are presented, discussing the main advantages of application. Serial evaluations in real world situations should be instituted to confirm the diagnostic and prognostic utility of this new index.
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Rev Bras Cir Cardiovasc · Jan 2012
Review Meta AnalysisTranscutaneous electrical nerve stimulation after thoracic surgery: systematic review and meta-analysis of 11 randomized trials.
To evaluate the effects of transcutaneous electric nerve stimulation (TENS) on pain and pulmonary function during the postoperative period after thoracic surgery by performing a systematic review and meta-analysis of randomized trials. ⋯ TENS associated with pharmacological analgesia provides pain relief compared to the placebo TENS in postoperative thoracic surgery patients both approached by thoracotomy and sternotomy. In the sternotomy it also provides more effective pain relief compared to pharmacological analgesia alone, but has no significant effect on pulmonary function.
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Rev Bras Cir Cardiovasc · Jan 2012
Randomized Controlled TrialClinical and metabolic results of fasting abbreviation with carbohydrates in coronary artery bypass graft surgery.
Limited information is available about preoperative fasting abbreviation with administration of liquid enriched with carbohydrates (CHO) in cardiovascular surgeries. ⋯ Preoperative fasting abbreviation with the administration of CHO in the CABG was safe. The glycemic control improved in the ICU; there was less time in the use of dobutamine and length of hospital and ICU stay was reduced. However, neither IR nor morbimortality during hospital phase were influenced.
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Rev Bras Cir Cardiovasc · Oct 2011
Randomized Controlled TrialRetrograde autologous priming in cardiopulmonary bypass in adult patients: effects on blood transfusion and hemodilution.
Retrograde autologous priming (RAP) is a cardiopulmonary bypass (CPB) method, at low cost. Previous studies have shown that this method reduces hemodilution and blood transfusions needs through increased intra-operative hematocrit. ⋯ This investigation was designed to be a small-scale pilot study to evaluate the effects of RAP, which were demonstrated concerning the CPB hemodilution and blood transfusions.