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1.
J Cardiothorac Vasc Anesth ; 33(10): 2685-2694, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31064730

RESUMO

OBJECTIVE: Reducing mortality is a key target in critical care and perioperative medicine. The authors aimed to identify all nonsurgical interventions (drugs, techniques, strategies) shown by randomized trials to increase mortality in these clinical settings. DESIGN: A systematic review of the literature followed by a consensus-based voting process. SETTING: A web-based international consensus conference. PARTICIPANTS: Two hundred fifty-one physicians from 46 countries. INTERVENTIONS: The authors performed a systematic literature search and identified all randomized controlled trials (RCTs) showing a significant increase in unadjusted landmark mortality among surgical or critically ill patients. The authors reviewed such studies during a meeting by a core group of experts. Studies selected after such review advanced to web-based voting by clinicians in relation to agreement, clinical practice, and willingness to include each intervention in international guidelines. MEASUREMENTS AND MAIN RESULTS: The authors selected 12 RCTs dealing with 12 interventions increasing mortality: diaspirin-crosslinked hemoglobin (92% of agreement among web voters), overfeeding, nitric oxide synthase inhibitor in septic shock, human growth hormone, thyroxin in acute kidney injury, intravenous salbutamol in acute respiratory distress syndrome, plasma-derived protein C concentrate, aprotinin in high-risk cardiac surgery, cysteine prodrug, hypothermia in meningitis, methylprednisolone in traumatic brain injury, and albumin in traumatic brain injury (72% of agreement). Overall, a high consistency (ranging from 80% to 90%) between agreement and clinical practice was observed. CONCLUSION: The authors identified 12 clinical interventions showing increased mortality supported by randomized controlled trials with nonconflicting evidence, and wide agreement upon clinicians on a global scale.

2.
J Cardiothorac Vasc Anesth ; 33(5): 1430-1439, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30600204

RESUMO

The authors aimed to identify interventions documented by randomized controlled trials (RCTs) that reduce mortality in adult critically ill and perioperative patients, followed by a survey of clinicians' opinions and routine practices to understand the clinicians' response to such evidence. The authors performed a comprehensive literature review to identify all topics reported to reduce mortality in perioperative and critical care settings according to at least 2 RCTs or to a multicenter RCT or to a single-center RCT plus guidelines. The authors generated position statements that were voted on online by physicians worldwide for agreement, use, and willingness to include in international guidelines. From 262 RCT manuscripts reporting mortality differences in the perioperative and critically ill settings, the authors selected 27 drugs, techniques, and strategies (66 RCTs, most frequently published by the New England Journal of Medicine [13 papers], Lancet [7], and Journal of the American Medical Association [5]) with an agreement ≥67% from over 250 physicians (46 countries). Noninvasive ventilation was the intervention supported by the largest number of RCTs (n = 13). The concordance between agreement and use (a positive answer both to "do you agree" and "do you use") showed differences between Western and other countries and between anesthesiologists and intensive care unit physicians. The authors identified 27 clinical interventions with randomized evidence of survival benefit and strong clinician support in support of their potential life-saving properties in perioperative and critically ill patients with noninvasive ventilation having the highest level of support. However, clinician views appear affected by specialty and geographical location.


Assuntos
Cuidados Críticos/métodos , Estado Terminal/mortalidade , Internet , Médicos , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Inquéritos e Questionários , Cuidados Críticos/tendências , Estado Terminal/terapia , Humanos , Unidades de Terapia Intensiva/tendências , Internet/tendências , Mortalidade/tendências , Médicos/tendências
3.
J Cardiothorac Vasc Anesth ; 32(1): 225-235, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29122431

RESUMO

OBJECTIVE: A careful choice of perioperative care strategies is pivotal to improve survival in cardiac surgery. However, there is no general agreement or particular attention to which nonsurgical interventions can reduce mortality in this setting. The authors sought to address this issue with a consensus-based approach. DESIGN: A systematic review of the literature followed by a consensus-based voting process. SETTING: A web-based international consensus conference. PARTICIPANTS: More than 400 physicians from 52 countries participated in this web-based consensus conference. INTERVENTIONS: The authors identified all studies published in peer-reviewed journals that reported on interventions with a statistically significant effect on mortality in the setting of cardiac surgery through a systematic Medline/PubMed search and contacts with experts. These studies were discussed during a consensus meeting and those considered eligible for inclusion in this study were voted on by clinicians worldwide. MEASUREMENTS AND MAIN RESULTS: Eleven interventions finally were selected: 10 were shown to reduce mortality (aspirin, glycemic control, high-volume surgeons, prophylactic intra-aortic balloon pump, levosimendan, leuko-depleted red blood cells transfusion, noninvasive ventilation, tranexamic acid, vacuum-assisted closure, and volatile agents), whereas 1 (aprotinin) increased mortality. A significant difference in the percentages of agreement among different countries and a variable gap between agreement and clinical practice were found for most of the interventions. CONCLUSIONS: This updated consensus process identified 11 nonsurgical interventions with possible survival implications for patients undergoing cardiac surgery. This list of interventions may help cardiac anesthesiologists and intensivists worldwide in their daily clinical practice and can contribute to direct future research in the field.


Assuntos
Procedimentos Cirúrgicos Cardíacos/mortalidade , Procedimentos Cirúrgicos Cardíacos/tendências , Conferências de Consenso como Assunto , Assistência Perioperatória/métodos , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/prevenção & controle , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Congressos como Assunto/tendências , Consenso , Humanos , Internet/tendências , Mortalidade/tendências , Assistência Perioperatória/tendências , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos
4.
Curr Vasc Pharmacol ; 16(4): 336-343, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29032753

RESUMO

Halogenated anesthetic agents (desflurane, isoflurane and sevoflurane) may have cardioprotective properties at therapeutic doses against myocardial intraoperative ischemia-reperfusion injury. Cardioprotection mechanisms are related to mitochondrial and anti-apoptotic signaling pathways. Experimentals and human studies have proven that their use may reduce morbidity and mortality in the setting of cardiac surgery, including a reduction in myocardial infarct size and mechanical ventilation needs. In contrast, total intra-venous propofol based anesthesia may be detrimental. In the present review, we show the rationale for the perioperative use of halogenated anesthetics based on mechanisms of action, experimental research and human studies. Considerations and major concerns regarding their use, the present evidence for their use in other areas, such as major non-cardiac surgery and intensive care unit patients, and future perspectives are also discussed.

5.
J Cardiothorac Vasc Anesth ; 32(1): 225-235, 2018.
Artigo em Inglês | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: ses-37196

RESUMO

OBJECTIVE:A careful choice of perioperative care strategies is pivotal to improve survival in cardiac surgery. However, there is no general agreement or particular attention to which nonsurgical interventions can reduce mortality in this setting. The authors sought to address this issue with a consensus-based approach.DESIGN:A systematic review of the literature followed by a consensus-based voting process.SETTING:A web-based international consensus conference.PARTICIPANTS:More than 400 physicians from 52 countries participated in this web-based consensus conference.INTERVENTIONS:The authors identified all studies published in peer-reviewed journals that reported on interventions with a statistically significant effect on mortality in the setting of cardiac surgery through a systematic Medline/PubMed search and contacts with experts. These studies were discussed during a consensus meeting and those considered eligible for inclusion in this study were voted on by clinicians worldwide.MEASUREMENTS AND MAIN RESULTS:Eleven interventions finally were selected: 10 were shown to reduce mortality (aspirin, glycemic control, high-volume surgeons, prophylactic intra-aortic balloon pump, levosimendan, leuko-depleted red blood cells transfusion, noninvasive ventilation, tranexamic acid, vacuum-assisted closure, and volatile agents), whereas 1 (aprotinin) increased mortality. A significant difference in the percentages of agreement among different countries and a variable gap between agreement and clinical practice were found for most of the interventions.CONCLUSIONS:This updated consensus process identified 11 nonsurgical interventions with possible survival implications for patients undergoing cardiac surgery. This list of interventions may help cardiac anesthesiologists and intensivists worldwide in their daily clinical practice and can contribute to direct future research in the field.(AU)


Assuntos
Período Perioperatório/mortalidade , Período Perioperatório/métodos
6.
J Crit Care ; 41: 107-111, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28505485

RESUMO

PURPOSE: Confounders in randomized controlled trials (RCTs) reporting significant effects on mortality in critically ill patients using non-surgical techniques have not been systematically explored. We aimed to identify factors unrelated to the reported intervention that might have affected the findings and robustness of such trials. METHODS: We searched Pubmed/MEDLINE for all RCTs on any non-surgical interventions reporting an effect on unadjusted mortality in critically ill patients between 1/1/2000 and 1/12/2015. We assessed: the number needed to treat/harm (NNT or NNH), sample size, trial design (blinded/unblinded, single or multinational, single or multicenter (sRCT or mRCT)), intention to treat (ITT) analysis, and countries of origin. RESULTS: Almost half of RCTs were sRCTs. Median sample size was small, and 1/3 were not analyzed according to ITT principle. Lack of ITT analysis was associated with greater effect size (p=0.0028). Harm was more likely in mRCTs (p=0.002) and/or in blinded RCTs (p=0.003). Blinded RCTs had double sample size (p=0.007) and an increased NNT/NNH (p=0.002). Finally, mRCTs had higher NNT (p=0.005) and NNH (p=0.02), and harm was only detected in studies from Western countries (p=0.007). CONCLUSIONS: These observations imply that major systematic biases exist and affect trial findings irrespective of the intervention being studied.


Assuntos
Cuidados Críticos/métodos , Estado Terminal/mortalidade , Período Perioperatório/mortalidade , Viés , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
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