Early versus late tracheostomy for traumatic brain injury: a systematic review and meta-analysis.

INTRODUCTION: Tracheostomy is the most frequent bedside surgical procedure performed on patients with traumatic brain injury who require mechanical ventilation. To compare the effects of early tracheostomy vs. late tracheostomy on the duration of mechanical ventilation in patients with traumatic brain injury, we carried out a systematic review and meta-analysis. EVIDENCE ACQUISITION: MEDLINE, Scopus, Web of Science, and Cochrane were searched from inception to 17th October 2022. Eligible clinical trials and observational studies reporting early versus late tracheostomy in TBI were searched. Two reviewers extracted data and independently assessed the risk of bias. The duration of mechanical ventilation was the primary outcome. EVIDENCE SYNTHESIS: We pooled standardized mean differences and risk differences for random effects model. A total of 368 studies were retrieved and screened. Nineteen studies were selected, including 6253 patients. Mean time for early tracheostomy and late tracheostomy procedures was 6±2.9 days and 17±10.7 days, respectively. Early tracheostomy was associated with shorter mechanical ventilation duration (SMD=-1.79, 95% CI -2.71; -0.88) and fewer ventilator associated pneumonia (RD=-0.11, 95% CI -0.16; -0.06) when compared with late tracheostomy. Moreover, intensive care unit (ICU) (SMD=-1.64, 95% CI -2.44; -0.84) and hospital (SMD=-1.26, 95% CI -1.97; -0.56) length of stay were shorter when compared with late tracheostomy. CONCLUSIONS: The findings from this meta-analysis suggest that early tracheostomy in severe TBI patients contributes to a lower exposure to secondary insults and nosocomial adverse events, increasing the opportunity of patient's early rehabilitation and discharge.

Beneficial effects of levosimendan to wean patients from VA-ECMO: a systematic review and meta-analysis.

INTRODUCTION: Patients with refractory cardiogenic shock can benefit from veno-arterial extracorporeal membrane oxygenation (VA-ECMO). The use of levosimendan in VA-ECMO patients may facilitate weaning and enhance survival. EVIDENCE ACQUISITION: MEDLINE, Scopus, Web of Science, and Cochrane were searched from inception to October 10th, 2021. Eligible clinical trials and observational studies reporting the use of levosimendan in VA-ECMO were searched. Two reviewers extracted data and independently assessed the risk of bias. To integrate the data, a random-effect model was applied. The success of weaning from VA-ECMO was the primary outcome. EVIDENCE SYNTHESIS: Ten observational studies, including a total of 987 patients, were identified. Levosimendan was associated with successful weaning (362/448) compared with controls (328/539) (OR 2.37, 95% CI 1.71-3.28; P=0.01) and reduced mortality (144/433 vs. 258/507) (nine studies, OR 0.53, 95% CI 0.36-0.78; P=0.01) compared with control. CONCLUSIONS: Levosimendan was associated with successful weaning and increased survival in VA-ECMO patients. Randomized trials should confirm these findings.

Liver transplantation in Jehovah's witnesses: 13 consecutive cases at a single institution.

BACKGROUND: Jehovah's Witnesses represent a tremendous clinical challenge when indicated to liver transplantation because they refuse blood transfusion on religious grounds and the procedure is historically associated with potential massive peri-operative blood loss. We herein describe a peri-operative management pathway with strategies toward a transfusion-free environment with the aim not only of offering liver transplant to selected Jehovah's Witnesses patients but also, ultimately, of translating this practice to all general surgical procedures. METHODS: This is a retrospective review of prospective medical records of JW patients who underwent LT at our Institution. The peri-operative multimodal strategy to liver transplantation in Jehovah's Witnesses includes a pre-operative red cell mass optimization package and the intra-operative use of normovolemic haemodilution, veno-venous bypass and low central venous pressure. RESULTS: In a 9-year period, 13 Jehovah's Witness patients received liver transplantation at our centre representing the largest liver transplant program from deceased donors in Jehovah's Witnesses patients reported so far. No patient received blood bank products but 3 had fibrinogen concentrate and one tranexamic acid to correct ongoing hyper-fibrinolysis. There were 4 cases of acute kidney injury (one required extracorporeal renal replacement treatment) and one patient needed vasoactive medications to support blood pressure for the first 2 postoperative days. Two patients underwent re-laparotomy. Finally, of the 13 recipients, 12 were alive at the 1 year follow-up interview and 1 died due to septic complications. CONCLUSIONS: Our experience confirms that liver transplantation in selected Jehovah's Witnesses patients can be feasible and safe provided that it is carried out at a very experienced centre and according to a multidisciplinary approach.

Central Veno-Arterial Extracorporeal Membrane Oxygenation (C-VA-ECMO) After Cardiothoracic Surgery: A Single-Center Experience.

OBJECTIVES: Central veno-arterial extracorporeal membrane oxygenation (C-VA-ECMO) provides temporary cardiorespiratory support for patients in heart failure who cannot be weaned from cardiopulmonary bypass successfully. Outcomes are influenced by the reversibility of the initial insult and complications of the technique. METHODS: The authors reviewed their single-center experience over the last 8 years to inform future practice. The study included all patients supported with C-VA-ECMO after cardiothoracic surgery between January 2008 and July 2016. The authors identified mortality risk factors using logistic regression analysis and chi-square tests. RESULTS: One hundred and one patients were supported with C-VA-ECMO during the studied period. Weaning from ECMO was successful in 57.4% of patients, whereas 7.9% were bridged to veno-venous ECMO, 2% to peripheral veno-arterial ECMO, and 2% to biventricular ventricular assist devices. In-hospital and 1-year survival for all patients was 33.7% and 27.7%, respectively. Survival was considerably higher in transplantation patients (n = 11), at 63.6% and 54.5%, respectively. Risk factors linked to in-hospital mortality were age older than 70 years, lactate level greater than 4 mmol/L after 48 hours, and hepatic and kidney failure during ECMO support. CONCLUSIONS: Overall one-third of patients in the cohort who the authors believe would otherwise have died from postcardiotomy cardiogenic shock survived because C-VA-ECMO was commenced after cardiac surgery. Survival is greater in transplantation patients necessitating this form of support during or immediately after surgery.