Should the Vasoactive Inotropic Score be a Determinant for Early Initiation of VA ECMO in Postcardiotomy Cardiogenic Shock?

OBJECTIVES: The authors investigated the role of early venoarterial extracorporeal membrane oxygenation (VA ECMO) implantation in patients with postcardiotomy cardiogenic shock (PCS) on mortality and morbidity when integrating vasoactive-inotropic score (VIS) and type of catecholamine support. DESIGN: A retrospective, multicenter, observational study with propensity-weight matching. SETTING: Four university-affiliated intensive care units. PARTICIPANTS: Patients with PCS in the operating room. INTERVENTIONS: Early VA ECMO support. MEASUREMENTS AND MAIN RESULTS: Of 2,742 patients screened during the study period, 424 (16%) patients were treated with inotropic drugs, and 75 (3%) patients were supported by VA ECMO in the operating room. Patients supported by VA ECMO had a higher use of vasopressor and inotropic drugs, with a higher VIS score. After propensity matching (integrating VIS and catecholamines type), mortality (56% v 20%, p < 0.001) and morbidity (cardiac, renal, transfusion) were higher in patients supported by VA ECMO than in a matched control group. CONCLUSIONS: When matching integrated the pre-ECMO VIS and the type of catecholamines, VA ECMO remained associated with high mortality and morbidity, suggesting that VIS alone should not be used as a main determinant of VA ECMO implantation.

Evaluation of autoantibody profile in healthy subjects after mRNA vaccination against COVID-19.

BACKGROUND: SARS-CoV-2 severe acute respiratory syndrome has rapidly spread worldwide since 2019. All scientific and technological forces have concentrated towards the formulation of vaccines to contain the disease. In less than one year (December 2020) a first messenger RNA vaccine (Comirnaty, BioNTech/Pfizer) was authorized. However, the research community has wondered about possible side effects on the immune system, given the vaccines administration in phase 4. AIM: This study aims to evaluate the mRNA vaccine impact on the development of possible positive autoantibody profile in healthcare workers without any previous underlying pathology, after first, second and booster dose of Pfizer vaccine, by determining: circulating immune complexes concentrations (CIC); anti-myeloperoxidase (MPO) and anti-proteinase 3 (PR3) autoantibodies, the presence of antinuclear antibodies (ANA) and subsequent second level tests (extractable nuclear antigen (ENA) screen, double-strand DNA, extractable nuclear antigen (ANA) profile). METHODS: The subjects were divided according to anti-SARS-CoV-2 IgG RBD antibodies increasing concentrations in: Group I < 10 BAU/ml (N = 114); Group II > 1000 BAU/ml (N = 112); Group III > 2500 BAU/ml (N = 78). RESULTS: Our data show no autoreactive response changes over time in healthy subjects after vaccination. In fact, evaluation of ANA, CIC, anti-MPO, anti-PR3 and the detection of specific autoantigens, did not display significant variations. CONCLUSIONS: The results suggest the exclusion of a correlation between the administration of the vaccine and the possible onset of autoimmune disorders. Nevertheless, further investigations will be needed to test for any long-term side effects on an ever-growing population.

Doppler study of portal vein and renal venous velocity predict the appropriate fluid response to diuretic in ICU: a prospective observational echocardiographic evaluation.

BACKGROUND: Fluid overload and venous congestion are associated with morbi-mortality in the ICU (intensive care unit). Administration of diuretics to correct the fluid balance is common, although there is no strong relationship between the consequent fluid loss and clinical improvement. The aim of the study was to evaluate the ability of the portal pulsatility index, the renal venous impedance index, and the VEXUS score (venous ultrasound congestion score) to predict appropriate diuretic-induced fluid depletion. METHODS: The study had a prospective, observational, single-center observational design and was conducted in a university-affiliated medico-surgical ICU. Adult patients for whom the clinician decided to introduce loop diuretic treatment were included. Hemodynamic and ultrasound measurements (including the portal pulsatility index, renal venous impedance index and VEXUS score) were performed at inclusion and 2 hours after the initiation of the diuretics. The patients' characteristics were noted at inclusion, 24 h later, and at ICU discharge. The appropriate diuretic-induced fluid depletion was defined by a congestive score lower than 3 after diuretic fluid depletion. The congestive score included clinical and biological parameters of congestion. RESULTS: Eighty-one patients were included, and 43 (53%) patients presented with clinically significant congestion score at inclusion. Thirty-four patients (42%) had an appropriate response to diuretic-induced fluid depletion. None of the left- and right-sided echocardiographic parameters differed between the two groups. The baseline portal pulsatility index was the best predictor of appropriate response to diuretic-induced fluid depletion (AUC = 0.80, CI95%:0.70-0.92, p = 0.001), followed by the renal venous impedance index (AUC = 0.72, CI95% 0.61-0.84, p = 0.001). The baseline VEXUS score (AUC of 0.66 CI95% 0.53-0.79, p = 0.012) was poorly predictive of appropriate response to diuretic-induced fluid depletion. CONCLUSION: The portal pulsatility index and the renal venous impedance index were predictive of the appropriate response to diuretic-induced fluid depletion in ICU patients. The portal pulsatility index should be evaluated in future randomized studies.

Role of Electromechanical Dyssynchrony Assessment During Acute Circulatory Failure and Its Relation to Ventriculo-Arterial Coupling.

Introduction: Two parallel paradigms of cardiovascular efficiency and haemodynamic optimisation coexist in haemodynamic research. Targeting ventriculo-arterial (VA) coupling [i.e., the ratio between arterial and ventricular elastance (EV)] and electromechanical coupling are two promising approaches in acute circulatory failure. However, validation of the parameters of electromechanical coupling in critically ill patients is ongoing. Furthermore, a unifying link between VA and electromechanical coupling may exist, as EV is correlated with different times of the cardiac cycle. Materials and Methods: This study was a retrospective analysis of a prospectively collected observational database from one tertiary center ICU. We analyzed the relationship between electromechanical dyssynchrony and acute circulatory failure hemodynamics before and after treatment (i.e., fluid expansion, dobutamine, or norepinephrine infusion). The relationship between electromechanical coupling and VA coupling was also investigated. Adult patients with haemodynamic instability were included. Haemodynamic parameters, including arterial pressure, cardiac index, VA coupling, stroke work index/pressure-volume area (SWI/PVA), t-IVT, and Tei's index, were collected before and after treatment. A t-IVT of >12 s/min was classified as intraventricular dyssynchrony. Results: We included 54 patients; 39 (72.2%) were classified as having intraventricular dyssynchrony at baseline. These patients with baseline dyssynchrony showed a statistically significant amelioration of t-IVT (from 18 ± 4 s to 14 ± 6 s, p = 0.001), left ventricular EV [from 1.1 (0.72-1.52) to 1.33 (0.84-1.67) mmHg mL-1, p = 0.001], VA coupling [from 2 (1.67-2.59) to 1.80 (1.40-2.21), p = 0.001], and SWI/PVA [from 0.58 (0.49-0.65) to 0.64 (0.51-0.68), p = 0.007]. Patients without baseline dyssynchrony showed no statistically significant results. The improvement in VA coupling was mediated by an amelioration of EV. All patients improved their arterial pressure and cardiac index with treatment. The haemodynamic treatment group exhibited no effect on changing t-IVT. Conclusion: Acute circulatory failure is associated with electromechanical dyssynchrony. Cardiac electromechanical coupling was improved by haemodynamic treatment only if altered at baseline. The improvement of cardiac electromechanical coupling was associated with the improvement of markers of cardiocirculatory efficacy and efficiency (i.e., SWI/PVA and VA coupling). This study was the first to demonstrate a possible link between cardiac electromechanical coupling and VA coupling in patients with acute circulatory failure.

Treatment of Hyperlactatemia in Acute Circulatory Failure Based on CO2-O2-Derived Indices: Study Protocol for a Prospective, Multicentric, Single, Blind, Randomized, Superiority Study (The LACTEL Study).

Background: Hyperlactatemia is a biological marker of tissue hypoperfusion with well-known diagnostic, prognostic, and therapeutic implications in shock states. In daily clinical practice, it is difficult to find out the exact mechanism underlying hyperlactatemia. Central venous to arterial CO2 difference (pCO2 gap) is a better parameter of tissue hypoperfusion than the usual ones (clinical examination and mixed venous saturation). Furthermore, the ratio between the pCO2 gap and p(v-a)CO2/C(a-v)O2 may be a promising indicator of anaerobic metabolism, allowing for the identification of different causes of tissue hypoxia and hyperlactatemia. The main aim of the study is to demonstrate that initial hemodynamic resuscitation based on an algorithm integrating the pCO2 gap and p(v-a)CO2/C(a-v)O2 ratio vs. usual clinical practice in acute circulatory failure improves lactate clearance. Methods: LACTEL is a randomized, prospective, multicentric, controlled study. It compares the treatment of hyperlactatemia using an algorithm based on the pCO2 gap and P(v-a)CO2/C(a-v)O2 ratio vs. usual clinical practice in acute circulatory failure. A total of 90 patients were enrolled in each treatment group. The primary endpoint is the number of patients with a lactate clearance of more than 10% 2 h after inclusion. Lactate levels were monitored during the first 48 h of treatment as hemodynamic parameters, biological markers of organ failure, and 28-day mortality. Discussion: pCO2 derivate indices may be of better interest than routine clinical indices to differentiate causes of hyperlactatemia and diagnose anaerobiosis. LACTEL results will provide clinical insights into the role of these indices in the early hemodynamic management of acute circulatory failure in the ICU. Clinical Trial Registration: www.clinicaltrials.gov; identifier: NCT05032521.

Longitudinal Assessment of Adult Cases Performed by Graduating Urology Residents in the United States: 2010-2018.

INTRODUCTION: This study analyzed longitudinal growth trends, intra-resident variability and adult case volume performed at the completion of urology residency training. METHODS: National case logs of urology residents graduating from 2010 to 2018 were analyzed (1,072 residents). Compound annual growth rates were calculated for case volumes in adult case categories. Intra-resident variability was calculated as the percent difference between the 90th and 10th percentiles. Mean reported case volumes were compared with minimum requirements with the Student's t-test. RESULTS: Cases were performed in the role of surgeon (range 83% to 89%), assistant surgeon (range 8% to 13%) and teaching surgeon (range 2% to 4%), and total annual cases increased during the study period (compound annual growth rate 0.9%). The breakdown of cases performed by major case category was general urology (range 30% to 33%), endourology/stone disease (range 21% to 24%), oncology (range 19% to 21%), reconstructive surgery (range 13% to 14%) and laparoscopic surgery (range 10% to 13%). Urology residents consistently reported more cases than the minimum requirement (p <0.001) by severalfold (percent difference range of 170% to 550%). Mean intra-resident variability ranged from 198% for general urology to 333% for laparoscopic surgery among major case categories, with decreasing compound annual growth rates for intra-resident variability during the study period. In 2018, 2 residents did not report minimum case requirements (1.6%). CONCLUSIONS: Reported case volume in adult urology is increasing and exceeds minimum requirements by severalfold. Future studies are needed to understand the impact of higher resident case volumes on clinical competency.

The long-term impact of an interprofessional humanistic faculty development programme: A qualitative investigation.

RATIONALE, AIMS, AND OBJECTIVES: While it has long been supported that faculty development programmes serve as a means to improving practical knowledge, professional skills, and identity formation for faculty, significantly less research is focused on how learning that occurs in faculty development programmes is actually employed in the workplace and ingrained in day-to-day activities. The present study qualitatively explored the long-term impact of the Mentoring and Professionalism in Training (MAP-IT) programme, a longitudinal, interprofessional faculty development curriculum designed to enhance clinicians' humanistic mentoring skills, specifically nurses and physicians. METHOD: Participants included 21 former high-potential mentors and facilitator leaders who had graduated from the MAP-IT programme from 2014 to 2016. Semi-structured focus groups and interviews were conducted between August and September of 2017 to collect participant experiences of the impact of MAP-IT skills on their professional roles (with colleagues and patients) in their clinical environments. Qualitative data were analysed using content analysis methodology. RESULTS: Qualitative analyses using an editing analysis style resulted in nine major themes, including incorporation into clinical practice, self-care, team building and conflict resolution, mindfulness, mentorship, professionalism, interprofessional collaboration, humanism, and appreciative inquiry. CONCLUSION: The personal and professional development instilled through the MAP-IT programme was found to remain important over time, years after participation in the programme had concluded, supporting its "durability." Implications are also discussed.

The Impact of Training Pathway on Breast Surgery Cases Performed during Plastic Surgery Residency.

BACKGROUND: Operative volume is a critical component of surgical resident education. This study compares reported breast surgery case volume between resident training pathways in plastic surgery. METHODS: This retrospective cohort study reviewed case logs of plastic surgery residents in the independent/combined and integrated training pathways. Breast surgery case volume was compared via t tests across two major categories: reconstructive and aesthetic. Differences in intra-pathway variability were compared with F tests. Five consecutive cohorts of plastic surgery residents (n = 818): independent/combined (n = 526, 64%) and integrated (n = 292, 36%) at Accreditation Council for Graduate Medical Education (ACGME) accredited residency programs, were included (2011-2015). RESULTS: Independent/combined residents reported significantly more aesthetic cases than integrated residents, but similar reconstructive cases. Independent/combined residents reported more breast augmentations, mastopexy, cosmetic breast fat grafting, and other cosmetic breast cases. Within the reconstructive category, independent residents reported more breast reconstruction fat grafting cases while integrated residents reported more breast reconstruction with pedicle flap, other breast reconstruction, and breast reduction cases. Independent residents had greater intra-pathway variability in five case subcategories, while integrated residents had greater variability in one case subcategory. CONCLUSIONS: Disparities in breast surgery case volume exist by plastic surgery residency training pathway. Given the importance of case volume to residents and faculty, these disparities may warrant greater attention. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.