Two cases of liver lobe torsion in a white-lipped tamarin (Saguinus labiatus) and an Alaotran gentle lemur (Hapalemur alaotrensis).

This paper describes liver lobe torsion in a white-lipped tamarin (Saguinus labiatus) and an Alaotran gentle lemur (Hapalemur alaotrensis). Both animals had a history of acute collapse, and diagnosis was made post-mortem. To the authors' knowledge, these are the first reported cases of this pathology in non-human primates.

Early or late fresh frozen plasma administration in newborns and small infants undergoing cardiac surgery: the APPEAR randomized trial.

BACKGROUND: In newborns and small infants undergoing cardiac surgery with cardiopulmonary bypass (CPB) and blood priming, it is unclear whether there is reduced blood loss if fresh frozen plasma (FFP) is added to the CPB priming volume. This single-centre, randomized trial tested the hypothesis that the administration of FFP after CPB (late FFP group) is superior to FFP priming (early FFP group) in terms of postoperative bleeding and overall red blood cell (RBC) transfusion. METHODS: Seventy-three infants weighing <10 kg were randomly allocated to receive FFP to supplement RBCs in the CPB priming solution ( n =36) or immediately after CPB ( n =37). The primary endpoint was a difference in postoperative blood loss; secondary endpoints included the amount of RBCs and FFP transfused through the first 48 postoperative hours. RESULTS: All patients were included in the analysis. Patients in the late FFP arm had greater postoperative mean blood loss than patients in the early FFP arm [33.1 ( sd 20.6) vs 24.1 (12.9) ml kg -1 ; P =0.028], but no differences in transfusions were found. The subgroup of cyanotic heart disease patients had comparable results, but with greater use of RBCs in the late FFP group. CONCLUSIONS: In infants undergoing cardiac surgery, FFP in the priming solution appears slightly superior to late administration in terms of postoperative bleeding. CLINICAL TRIAL REGISTRATION: www.ClinicalTrials.gov , NCT02738190.

The Effect of inotropes and vasopressors on mortality: a meta-analysis of randomized clinical trials.

BACKGROUND: Inotropes and vasopressors are frequently administered to critically ill patients in order to improve haemodynamic function and restore adequate organ perfusion. However, some studies have suggested a possible association between inotrope administration and increased mortality. We therefore performed a meta-analysis of randomized trials published in the last 20 yr to investigate the effect of these drugs on mortality. METHODS: BioMedCentral, PubMed, Embase and the Cochrane Central Register were searched (all updated April 8th, 2015). Inclusion criteria were: random allocation to treatment, at least one group receiving an inotropic or vasopressor drug compared with at least one group receiving a non-inotropic/vasopressor treatment, study published after 1st January 1994, and systemic drug administration. Exclusion criteria were overlapping populations, studies published as abstract only, crossover studies, paediatric studies and lack of data on mortality. RESULTS: A total of 28 280 patients from 177 trials were included. Overall, pooled estimates showed no difference in mortality between the group receiving inotropes/vasopressors and the control group [4255/14 036 (31.7%) vs. 4277/14 244 (31.8%), risk ratio=0.98 (0.96-1.01), P for effect=0.23, P for heterogeneity=0.30, I2=6%]. A reduction in mortality was associated with inotrope/vasopressor therapy use in settings of vasoplegic syndromes, sepsis and cardiac surgery. Levosimendan was the only drug associated with improvement in survival. Subgroup analysis did not identify any groups with increased mortality associated with inotrope/vasopressor therapy. CONCLUSIONS: Our systematic review found that inotrope/vasopressor therapy is not associated with differences in mortality in the overall population and in the majority of subsettings.

Protein C zymogen in adults with severe sepsis or septic shock

INTRODUCTION: Activated protein C is associated with a risk of bleeding and its effects on survival in septic shock patients are questionable. Protein C zymogen has no risk of bleeding and improves the outcome of patients with septic shock. We hereby describe the largest published case series of adult patients receiving protein C zymogen. Design, setting and participants: A prospective study on 23 adult patients with severe sepsisor septic shock, two or more organ failures and at high risk for bleeding, treated with protein C zymogen (50 IU/kg bolus followed by continuous infusion of 3 IU/kg/h for 72 h).RESULTS: The Z-test evidenced a significant reduction between the expected mortality (53%)and the observed mortality 30% (Z value = 1.99, p = 0.046) in our sample population. Protein Clevels increased from 34 ± 18% to 66 ± 22% at 6 h after PC bolus (p < 0.001), and kept on increasing during 72 h of administration (p < 0.001 to baseline). Sequential Organ Failure Assessment(SOFA), score of organ dysfunction, decreased from baseline to 7 days after administration of protein C from 14 ± 2 to 7 ± 4 (p < 0.001). No adverse event drug related was noted. CONCLUSION: Protein C zymogen administration is safe and its use in septic patients should be investigated through a randomized controlled trial

INTRODUCCIÓN: La proteína C activada se asocia a un elevado riesgo de hemorragia, y sus efectos sobre la supervivencia en los pacientes con choque séptico son cuestionables. El zimógeno de proteína C no presenta ningún riesgo de hemorragia, y mejora los resultados en los pacientes con choque séptico. Describimos la serie de casos más amplia publicada de pacientes adultos tratados con zimógeno de proteína C. Diseño, ámbito y participantes: Se ha llevado a cabo un estudio prospectivo en el que han articipado 23 adultos con sepsis grave o choque séptico, 2 o más fallos orgánicos, y un elevado riesgo de hemorragia, tratados con zimógeno de proteína C (dosis en bolo de 50 UI/kg seguida de una infusión continua de 3 UI/kg/h durante 72h). RESULTADOS: La prueba Z puso de manifiesto una disminución significativa entre la mortalidad prevista (53%), y la mortalidad observada 30% (valor Z = 1,99; p = 0,046) en nuestra serie. Las concentraciones de proteína C incrementaron de 34 ±18% a 66 ± 22% a las 6 h de la dosis en bolo (p < 0,001), y siguieron incrementando durante las 72 h siguientes a la administración (p < 0,001 respecto a la situación basal). La puntuación en la evaluación secuencial del fallo orgánico (SOFA) disminuyó entre la situación basal, y 7 días después de la administración de proteína C de 14 ± 2 a 7 ± 4 (p < 0,001). No se registraron reacciones farmacológicas adversas. CONCLUSIÓN: El zimógeno de proteína Z debería investigarse su utilización en los pacientes con sepsis mediante un estudio aleatorizado y controlado

Protein C zymogen in adults with severe sepsis or septic shock.

INTRODUCTION: Activated protein C is associated with a risk of bleeding and its effects on survival in septic shock patients are questionable. Protein C zymogen has no risk of bleeding and improves the outcome of patients with septic shock. We hereby describe the largest published case series of adult patients receiving protein C zymogen. DESIGN, SETTING AND PARTICIPANTS: A prospective study on 23 adult patients with severe sepsis or septic shock, two or more organ failures and at high risk for bleeding, treated with protein C zymogen (50IU/kg bolus followed by continuous infusion of 3IU/kg/h for 72h). RESULTS: The Z-test evidenced a significant reduction between the expected mortality (53%) and the observed mortality 30% (Z value=1.99, p=0.046) in our sample population. Protein C levels increased from 34±18% to 66±22% at 6h after PC bolus (p<0.001), and kept on increasing during 72h of administration (p<0.001 to baseline). Sequential Organ Failure Assessment (SOFA), score of organ dysfunction, decreased from baseline to 7 days after administration of protein C from 14±2 to 7±4 (p<0.001). No adverse event drug related was noted. CONCLUSION: Protein C zymogen administration is safe and its use in septic patients should be investigated through a randomized controlled trial.

Cesarean section in a patient with non-compaction cardiomyopathy managed with ECMO.

Isolated ventricular non-compaction is a rare cardiomyopathy associated with left heart failure, severe arrhythmias and thromboembolism. We report about our interdisciplinary strategy in a patient with severe isolated ventricular non-compaction cardiomyopathy scheduled for caesarean section in general anaesthesia. Monitoring included placement of an arterial line, a central venous catheter and a pulmonary artery catheter with pacing option. Small introducer gates were placed in the femoral artery and vein to facilitate quick percutaneous institution of extracorporeal life support via extracorporeal membrane oxygenation in case of acute cardiac failure refractory to medical treatment. Inotropic pharmacological therapy with 3 µg/kg/min dobutamine and 0.25 mg/kg/min milrinone was started before surgery. Induction of general anesthesia and rapid sequence intubation was performed with an analgesic dose of 0.5 mg/kg S ketamine, 0.25 mg/kg etomidate and 5 mg rocoronium followed by 1.5 mg/kg succinylcholine. This regimen provided completely stable hemodynamics in this critical period until delivery of the child and continuation of anaesthesia with continuous infusion of propofol and remifentanyl. The current strategies, particularly the preparation for femoro-femoral extracorporeal membrane oxygenation, may be considered in similar cases with a high risk of acute cardiac decompensation which may be refractory to medical treatment. Anaesthesiologist involved in performing caesarean section in women with complex cardiac disease, should encompass extracorporeal membrane oxygenation standby in management of the perioperative period.