Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI.

BACKGROUND: Coronary revascularization guided by fractional flow reserve (FFR) is associated with better patient outcomes after the procedure than revascularization guided by angiography alone. It is unknown whether the instantaneous wave-free ratio (iFR), an alternative measure that does not require the administration of adenosine, will offer benefits similar to those of FFR. METHODS: We randomly assigned 2492 patients with coronary artery disease, in a 1:1 ratio, to undergo either iFR-guided or FFR-guided coronary revascularization. The primary end point was the 1-year risk of major adverse cardiac events, which were a composite of death from any cause, nonfatal myocardial infarction, or unplanned revascularization. The trial was designed to show the noninferiority of iFR to FFR, with a margin of 3.4 percentage points for the difference in risk. RESULTS: At 1 year, the primary end point had occurred in 78 of 1148 patients (6.8%) in the iFR group and in 83 of 1182 patients (7.0%) in the FFR group (difference in risk, -0.2 percentage points; 95% confidence interval [CI], -2.3 to 1.8; P<0.001 for noninferiority; hazard ratio, 0.95; 95% CI, 0.68 to 1.33; P=0.78). The risk of each component of the primary end point and of death from cardiovascular or noncardiovascular causes did not differ significantly between the groups. The number of patients who had adverse procedural symptoms and clinical signs was significantly lower in the iFR group than in the FFR group (39 patients [3.1%] vs. 385 patients [30.8%], P<0.001), and the median procedural time was significantly shorter (40.5 minutes vs. 45.0 minutes, P=0.001). CONCLUSIONS: Coronary revascularization guided by iFR was noninferior to revascularization guided by FFR with respect to the risk of major adverse cardiac events at 1 year. The rate of adverse procedural signs and symptoms was lower and the procedural time was shorter with iFR than with FFR. (Funded by Philips Volcano; DEFINE-FLAIR ClinicalTrials.gov number, NCT02053038 .).

Improving Intraoperative Communication in Trauma: The Educational Effect of the Joint DSTC™-DATC™ Courses.

BACKGROUND: Operative management of severe trauma requires excellent communication among team members. The surgeon and anesthesiologist need to interact efficiently, exchanging vital information. The Definitive Surgical Trauma Care (DSTC) and Definitive Anesthesia Trauma Care (DATC) courses provide an excellent opportunity for teamwork training. Our goal was to study the impact of the joint DSTC-DATC courses in candidates' self-reported assessment in communication skills and techniques in a simulated intraoperative trauma scenario. METHODS: Study population consists of 93 candidates (67 surgeons and 26 anesthesiologists) participating in four consecutive joint DSTC-DATC courses in May and June 2019 in Brazil (3) and in Portugal (1). Median age was 30 years; 53 (60%) of subjects were male (46 senior residents and 47 specialists). All participants attended joint lectures, case discussions and surgical skills session, emphasizing intraoperative communication. Post-course survey on several aspects of perioperative communication (responses on a Likert scale) was conducted with participants being asked which aspects of intraoperative communication they valued the most. RESULTS: All participants responded to the survey. Results displayed an increase in the self-assessed importance of team briefing and intraoperative communication, particularly routine periodic communication, rather than only at critical moments. Postoperative team debriefing was also valued as highly relevant. Closed-loop and direct, by-name communication were highly rated. Self-reported communication skills improved significantly during the course. CONCLUSIONS: Joint training in the DSTC-DATC courses improved candidates' perception and skills on proficient intraoperative communication. Further studies should address both the durability of these changes and the potential impact on patient care.

Predictive factors of discordance between the instantaneous wave-free ratio and fractional flow reserve.

OBJECTIVES: To identify clinical, angiographic and hemodynamic predictors of discordance between instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR). BACKGROUND: The iFR was found to be non-inferior to the gold-standard FFR for guiding coronary revascularization, although it is discordant with FFR in 20% of cases. A better understanding of the causes of discordance may enhance application of these indices. METHODS: Both FFR and iFR were measured in the prospective multicenter CONTRAST study. Clinical, angiographic and hemodynamic variables were compared between patients with concordant values of FFR and iFR (cutoff ≤0.80 and ≤0.89, respectively). RESULTS: Out of the 587 patients included, in 466 patients (79.4%) FFR and iFR agreed: both negative, n = 244 (41.6%), or positive, n = 222 (37.8%). Compared with FFR, iFR was negative discordant (FFR+/iFR-) in 69 (11.8%) patients and positive discordant (FFR-/iFR+) in 52 (8.9%) patients. On multivariate regression, stenosis location (left main or proximal left anterior descending) (OR: 3.30[1.68;6.47]), more severe stenosis (OR: 1.77[1.35;2.30]), younger age (OR: 0.93[0.90;0.97]), and slower heart rate (OR: 0.59[0.42;0.75]) were predictors of a negative discordant iFR. Absence of a beta-blocker (OR: 0.41[0.22;0.78]), older age (OR: 1.04[1.00;1.07]), and less severe stenosis (OR: 0.69[0.53;0.89]) were predictors of a positive discordant iFR. CONCLUSIONS: During iFR acquisition, stenosis location, stenosis degree, heart rate, age and use of beta blockers influence concordance with FFR and should be taken into account when interpreting iFR.

Endothelial dysfunction evaluated by peripheral arterial tonometry is related with peak TnI values in patients with ST elevation myocardial infarction treated with primary angioplasty.

PURPOSE: The role of endothelial-dependent function in patients with acute ST elevation myocardial infarction (STEMI) is not clear. Endothelial dysfunction may contribute to the pathophysiological processes occurring after STEMI and influence the extension of myocardial necrosis. Endothelial-dependent dysfunction evaluated by peripheral arterial tonometry (PAT) has already showed to be correlated with microvascular coronary endothelial dysfunction. Our purpose was to evaluate the impact of endothelial dysfunction on peak Troponin I (TnI) values, as a surrogate for the extension of myocardial infarction, in patients with STEMI treated with primary angioplasty (P-PCI). METHODS: 58 patients with STEMI treated with P-PCI (mean age 59.0 ± 14.0 years, 46 males) were included. Endothelial function was assessed by reactive hyperaemia index (RHI) determined by PAT. Patients were divided in two groups according to the previously reported RHI threshold for high risk (1.67). The extension of myocardial necrosis was evaluated by peak TnI levels. RESULTS: RHI median value was 1.78 (IQR0.74);25 patients had endothelial dysfunction (RHI b 1.67). The two groups had no significant differences in age, gender, main risk factors and pain-to-balloon time. Patients with an RHI b 1.67 had significant larger infarcts: TnI 73.5 ng/mL (IQR 114.42 ng/mL) versus TnI 33.2 ng/mL (IQR 65.2 ng/mL); p = 0.028. On multivariate analysis, the presence of an RHI b 1.67 kept significant impact on TnI peak values (p=0.02). CONCLUSIONS: The presence of endothelial-dependent dysfunction, assessed by PAT, is related with higher peak TnI values in STEMI patients treated with P-PCI. These results strength the possibility that endothelial-dependent dysfunction may be a marker of poor prognosis and eventually a therapeutic target in patients with STEMI.

The Index of Microcirculatory Resistance as a Predictor of Echocardiographic Left Ventricular Performance Recovery in Patients With ST-Elevation Acute Myocardial Infarction Undergoing Successful Primary Angioplasty.

BACKGROUND: This study aims to evaluate the relationship between IMR (Index of Microcirculatory Resistance) and the echocardiographic evolution of left ventricular (LV) systolic and diastolic performance after ST-elevation acute myocardial infarction (STEMI), undergoing primary angioplasty (P-PCI). METHODS: IMR was evaluated immediately after P-PCI. Echocardiograms were performed within the first 24 hours (Echo1) and at 3 months (Echo2): LV volumes, ejection fraction (LVEF), wall motion score index (WMSI), E/é ratio, global longitudinal strain (GLS), and left atrial volume were measured. RESULTS: Forty STEMI patients were divided in 2 groups according to median IMR: Group 1 (IMR < 26), with less microvascular dysfunction, and Group 2 (IMR > = 26), with more microvascular dysfunction. In Echo1 GLS was significantly better in Group 1 (-14.9 vs. -12.9 in Group 2, P = 0.005). However, there were no significant differences between the two groups in LV systolic volume, LVEF and WMS. Between Echo1 and Echo2, there were significant improvements in LVEF (0.48 ± 0.06 vs. 0.55 ± 0.06, P < 0.0001), GLS (-14.9 ± 1.3 vs. -17.3 ± 7.6, P = 0.001), and E/é ratio (9.3 ± 3.4 vs. 8.2 ± 2.0, P = 0.037) in Group 1, but not in Group 2: LVEF (0.49 ± 0.06 vs. 0.50 ± 0.05, P = 0.47), GLS (-12.9 ± 2.4 vs. -14.4 ± 3.2, P = 0.052), and E/é ratio (8.8 ± 2.4 vs. 10.0 ± 4.7, P = 0.18). WMSI improved significantly more in Group 1 (reduction of -17.1% vs. -6.8% in Group 2, P = 0.015). CONCLUSION: Lower IMR was associated with better myocardial GLS acutely after STEMI, and with a significantly higher recovery of the LVEF, WMSI, E/E' ratio and GLS, suggesting that IMR is an early marker of cardiac recovery, after acute myocardial infarction.

Observational Study About the Impact of Simulation Training of Non-Technical Skills on Teamwork: Towards a Paradigm Shift in Undergraduate Medical Training.

INTRODUCTION: Recently, simulation as an educational method has gained increasing importance in Medicine. However, medical education has favored the acquisition of individual knowledge and skills, while overlooking the development of teamwork skills. Since most errors in clinical practice are due to human factors, i.e., non-technical skills, the aim of this study was to assess the impact that training in a simulation environment has on teamwork in an undergraduate setting. MATERIAL AND METHODS: This study took place in a simulation center, with a study population of 23 participants, fifth year undergraduate students, randomly divided into teams of four elements. Twenty simulated scenarios of teamwork in the initial assessment and resuscitation of critically ill trauma patients were recorded. Video recordings were made at three distinct learning moments (before training, end of the semester, and six months after the last training), and a blinded evaluation was performed by two independent observers, who applied the Trauma Team Performance Observation Tool (TPOT). Additionally, the Team STEPPS Teamwork Attitudes Questionnaire (T-TAQ) was applied to the study population before and after the training to assess any change in individual attitudes towards non-technical skills. A 5% (or 0.05) significance level was considered for statistical analysis. RESULTS: With a moderate level of inter-observer agreement (Kappa = 0.52, p = 0.002), there was a statistically significant improvement in the team's overall approach, evidenced by the TPOT scores (median of 4.23, 4.35 and 4.50, in the three time-points assessed, respectively, p = 0.003). In the T-TAQ, there was an improvement in non-technical skills, that was statistically significant for "Mutual Support" (median from 2.50 to 3.00, p = 0.010). CONCLUSION: In this study, incorporating non-technical skills education and training in undergraduate medical education was associated with sustained improvement in team performance in the approach to the simulated trauma patient. Consideration should be given to introducing non-technical skills training and teamwork in the emergency setting during undergraduate training.

PrOgnosis in Pulmonary Embolism (PoPE): 30-Day mortality risk score based on five admission parameters.

INTRODUCTION AND OBJECTIVE: Several scoring systems have been developed for risk stratification in patients with acute pulmonary embolism (PE). The Pulmonary Embolism Severity Index (PESI) and its simplified version (sPESI) are among the most used, however the high number of variables hinder its application. Our aim was to derive an easy-to-perform score based on simple parameters obtained at admission to predict 30-day mortality in acute PE patients. METHODS: Retrospective study in 1115 patients with acute PE from two institutions (derivation cohort n=835, validation cohort n=280). The primary endpoint was all-cause mortality at 30 days. Statistically and clinically relevant variables were selected for multivariable Cox regression analysis. We derived and validated a multivariable risk score model and compared to other established scores. RESULTS: The primary endpoint occurred in 207 patients (18.6%). Our model included five variables weighted as follows: modified shock index ≥1.1 (hazard ratio [HR] 2.57, 1.68-3.92, p<0.001), active cancer (HR 2.27, 1.45-3.56, p<0.001), altered mental state (HR 3.82, 2.50-5.83, p<0.001), serum lactate concentration ≥2.50 mmol/L (HR 5.01, 3.25-7.72, p<0.001), and age ≥80 years (HR 1.95, 1.26-3.03, p=0.003). The prognostic ability was superior to other scores (area under curve [AUC] 0.83 [0.79-0.87] vs 0.72 [0.67-0.79] in PESI and 0.70 [0.62-0.75] in sPESI, p<0.001) and its performance in the validation cohort was deemed good (73 events in 280 patients, 26.1%, AUC=0.76, 0.71-0.82, p<0.0001) and superior to other scores (p<0.05). CONCLUSIONS: The PoPE score (https://tinyurl.com/ybsnka8s) is an easy tool with superior performance to predict early mortality in patients admitted for PE with non-high-risk PE.

OPTImized coronary interventions eXplaIn the bEst cliNical outcomEs (OPTI-XIENCE) study. Rationale and study design.

INTRODUCTION: Clinical events may occur after percutaneous coronary intervention (PCI), particularly in complex lesions and complex patients. The optimization of PCI result, using pressure guidewire and intracoronary imaging techniques, may reduce the risk of these events. The hypothesis of the present study is that the clinical outcome of patients with indication of PCI and coronary stent implantation that are at high risk of events can be improved with an unrestricted use of intracoronary tools that allow PCI optimization. METHODS AND ANALYSIS: Observational prospective multicenter international study, with a follow-up of 12 months, including 1064 patients treated with a cobalt­chromium everolimus-eluting stent. Inclusion criteria include any of the following: Lesion length > 28 mm; Reference vessel diameter < 2.5 mm or > 4.25 mm; Chronic total occlusion; Bifurcation with side branch ≥2.0 mm;Ostial lesion; Left main lesion; In-stent restenosis; >2 lesions stented in the same vessel; Treatment of >2 vessels; Acute myocardial infarction; Renal insufficiency; Left ventricular ejection fraction <30 %; Staged procedure. The control group will be comprised by a similar number of matched patients included in the "extended risk" cohort of the XIENCE V USA study. The primary endpoint will be the 1-year rate of target lesion failure (TLF) (composite of ischemia-driven TLR, myocardial infarction (MI) related to the target vessel, or cardiac death related to the target vessel). Secondary endpoints will include overall mortality, cardiovascular mortality, acute myocardial infarction, TVR, TLR, target vessel failure, and definitive or probable stent thrombosis at 1 year. IMPLICATIONS: The ongoing OPTI-XIENCE study will contribute to the growing evidence supporting the use of intra-coronary imaging techniques for stent optimization in patients with complex coronary lesions.

Non-technical skills and teamwork in trauma: from the emergency department to the operating room.

Management of a trauma patient is a challenging process. Swift and accurate clinical assessment is required and time-sensitive decisions and life-saving procedures must be performed in an unstable patient. This requires a coordinated response by both the emergency room (ER) and operating room (OR) teams. However, a team of experts does not necessarily make an expert team. Root cause analysis of adverse events in surgery has shown that failures in coordination, planning, task management and particularly communication are the main causes for medical errors. While most research is focused on the ER trauma team, the trauma OR team also deserves attention. In fact, OR team dynamics may resemble more the ER team than the elective OR team. ER and OR trauma teams assemble on short notice, and their members, who are from different specialties and backgrounds, may not train regularly together or even know each other beforehand. And yet, they have to perform high-risk procedures and make high stake decisions, in a time-sensitive manner. The airline industry has long recognized the role of team training and non-technical skills (NTS) in reducing hazards. The implementation of the so called crew resource management or crisis resource management (CRM) has significantly made airline travel safer and the transposition to the medical context, with specific training in non-technical skills, has also brought great benefits. In fact, it is clear that adoption of non-technical skills (NTS) in healthcare has led to an increase in patient safety. In this narrative review we recapitulate some of the key non-technical skills and their relevance in trauma, with a focus on both the emergency department (ER) and the operating room (OR) teams, as well as on the transition of care from one to the other. Also, we explore the use of debriefing the team, as well as the roles of NTS training in both undergraduate and postgraduate settings. We review some of the existing trauma training courses and their roles in developing NTS. Finally, we briefly address the challenges posed by the development of trauma hybrid operating rooms.

Worldwide snapshot of trauma team structure and training: an international survey.

INTRODUCTION: Trauma teams (TTs) are a key tool in trauma care, as they bring a multidisciplinary approach to the trauma patient, improving outcomes. Excellent teamwork (TW) requires not only individual skills but also training at non-technical skills (NTS). Although there is evidence supporting TTs, there is little information regarding how they are organized and trained. With this study, we intend to assess the reality of TTs all over the world, focusing on how they are organized and trained. MATERIALS AND METHODS: We composed a 42-question sheet on Google Forms, in four different languages (English, Polish, Portuguese, and Spanish). The questions regarded the respondents' background, and their respective hospitals' trauma patient management, TT features and its training, NTS and TW. The survey was shared on social media, through the International Assessment Group of Online Surgical & Trauma Education community, and the European Society of Trauma and Emergency Surgery. Statistical analysis was performed on Statistical Package for the Social Sciences (SPSS®) version 27. RESULTS: We obtained 296 answers from 52 different countries, with 6 having at least 10 answers (Brazil, Portugal, Poland, Spain, Italy, and USA). While the majority of the respondents (97%) agreed that TTs can improve outcomes, only 61% have a TT in their hospital, with 69% of these being dedicated TTs. General surgery (76%), trauma surgery (68%), and anesthesia (66%) were the three most common specialties in the teams. Teams performed briefings and debriefings with a frequency of, at least, "often" in only 49% and 38%, respectively. Only 50% and 33% of the respondents stated that their hospital provided trauma management courses focusing on individual technical skills, and TT training courses, respectively. The Advanced Trauma Life Support (85%), the Definitive Surgical and Anesthetic Trauma Care (38%), and the European Trauma Course (31%) were the three trauma management courses of choice. Regarding TT training courses, the European Trauma Course (52%) and local/in-house (42%) courses were the most common ones. Most participants (93%) stated that NTS were highly important in trauma care. However, only 60% of the respondents had postgraduate training on NTS and TW, and only 24% had this type of training on an undergraduate level. CONCLUSION: The number of TTs worldwide does not match their relevance in trauma care. Institutions are not providing enough trauma courses, particularly TT training courses and NTS teaching. Implementing TT should include promotion of team courses, as well as team briefings and debriefings.

Global warming and heat wave risks for cardiovascular diseases: A position paper from the Portuguese Society of Cardiology.

Global warming is a result of the increased emission of greenhouse gases. The consequences of this climate change threaten society, biodiversity, food and resource availability. The consequences include an increased risk of cardiovascular (CV) disease and cardiovascular mortality. In this position paper, we summarize the data from the main studies that assess the risks of a temperature increase or heat waves in CV events (CV mortality, myocardial infarction, heart failure, stroke, and CV hospitalizations), as well as the data concerning air pollution as an enhancer of temperature-related CV risks. The data currently support global warming/heat waves (extreme temperatures) as cardiovascular threats. Achieving neutrality in emissions to prevent global warming is essential and it is likely to have an effect in the global health, including the cardiovascular health. Simultaneously, urgent steps are required to adapt the society and individuals to this new climatic context that is potentially harmful for cardiovascular health. Multidisciplinary teams should plan and intervene healthcare related to temperature changes and heat waves and advocate for a change in environmental health policy.

Functional coronary angiography for the assessment of the epicardial vessels and the microcirculation.

Over the last decade, steady progress has been made in the ability to assess coronary stenosis relevance by merging computerised analyses of angiograms with fluid dynamic modelling. The new field of functional coronary angiography (FCA) has attracted the attention of both clinical and interventional cardiologists as it anticipates a new era of facilitated physiological assessment of coronary artery disease, without the need for intracoronary instrumentation or vasodilator drug administration, and an increased adoption of ischaemia-driven revascularisation. This state-of-the-art review performs a deep dive into the foundations and rationale behind FCA indices derived from either invasive or computed angiograms. We discuss the currently available FCA systems, the evidence supporting their use, and the specific clinical scenarios in which FCA might facilitate patient management. Finally, the rapidly growing application of FCA to the diagnosis of coronary microvascular dysfunction is discussed. Overall, we aim to provide a state-of-the-art review not only to digest the achievements made so far in FCA, but also to enable the reader to follow the many publications and developments in this field that will likely take place in years to come.

Recurrent Kounis syndrome - a life-threatening event after COVID-19 vaccine administration.

Kounis syndrome is an acute coronary syndrome occurring in the setting of a hypersensitivity reaction. It occurs as a consequence of mast-cell activation and degranulation causing coronary artery spasm, atherosclerotic plaque erosion, or stent thrombosis. We report the case of a man who presented to the emergency department with typical angina that started 20 minutes after coronavirus disease 2019 (COVID-19) vaccine administration. Electrocardiogram showed inferior ST-elevation myocardial infarction, and coronary angiography confirmed right coronary artery stent thrombosis. Five months before, he had an acute coronary syndrome after influenza vaccine administration. Both vaccines share a common excipient, polysorbate 80. Considering the reproducibility of the reaction and the temporal association between vaccine administration and coronary events, a hypersensitivity reaction to polysorbate 80 was admitted and the patient was instructed to further avoid drugs containing it. To our knowledge, this constitutes the first reported case of type 3 Kounis syndrome after COVID-19 vaccine administration. Kounis syndrome is an uncommon disease, often undiagnosed. Its recognition and proper management are crucial to prevent future events. .

Contemporary prevalence of coronary artery disease in patients referred for heart valve surgery.

BACKGROUND: Patients undergoing heart valve surgery are routinely evaluated for the presence of coronary artery disease (CAD). Currently, concomitant valve intervention and surgical revascularization is recommended when there is obstructive CAD. The aim of our study was to evaluate the prevalence of CAD, its treatment strategies, and their prognostic implications in a contemporary population of patients with valvular heart disease (VHD) referred for valve surgery (HVS). METHODS: In a multicenter registry, consecutive patients with formal indication for HVS referred for a preoperative routine invasive coronary angiogram (ICA) were analyzed. Baseline characteristics, CAD prevalence and revascularization patterns, as well as their impact on short and mid-term all-cause mortality, were assessed. RESULTS: Overall, 1133 patients were included; most had aortic stenosis (69%) and obstructive CAD was present in 307 (27.1%). HVS was ultimately performed in 82.3%. In patients with CAD, 53.4% were revascularized. After a mean follow-up time of 29.06±18.46 months, all-cause mortality rate was 12.9%. In multivariate analysis, not having HVS (HR 6.845, 95% CI=4.281-10.947, P<0.001), obstructive CAD (HR 2.762, 95% CI=1.764-4.326, P<0.01), COPD (HR 2.043, 95% CI=1.014-4.197, P=0.022), and age (HR 1.030, 95% CI=1.009-1.063, P=0.047), were independent predictors of all-cause mortality. In patients with obstructive CAD who underwent HVS, revascularization was not significantly associated with survival (HR 2.127, 95% CI=0.0-4.494, P=0.048; log rank P=0.042). CONCLUSIONS: In a contemporary cohort of patients with VHD and surgical indication, overall obstructive CAD prevalence was 27%. CAD presence and severity were associated with higher mortality. However, revascularization was not associated with a survival benefit, except in patients with left anterior descending artery disease.

Air pollution and cardiovascular diseases: A position paper.

Air pollution is one of the main environmental risk factors for health and is linked to cardiovascular diseases, which are the leading cause of mortality worldwide. In this position paper, we discuss the main air pollutants and how they can promote the development of cardiovascular disease or cardiovascular events. We also summarise the main evidence supporting the association between air pollution and cardiovascular events, such as coronary events (acute coronary syndromes/myocardial infarction; chronic coronary syndromes), stroke, heart failure and mortality. Some recommendations are made based on these data and the European Society of Cardiology guidelines on cardiovascular disease prevention, acknowledging that it is important to increase awareness and literacy on this topic in Portugal.

International cooperation group of emergency surgery during the COVID-19 pandemic.

PURPOSE: The COVID-19 pandemic has changed working conditions for emergency surgical teams around the world. International surgical societies have issued clinical recommendations to optimize surgical management. This international study aimed to assess the degree of emergency surgical teams' adoption of recommendations during the pandemic. METHODS: Emergency surgical team members from over 30 countries were invited to answer an anonymous, prospective, online survey to assess team organization, PPE-related aspects, OR preparations, anesthesiologic considerations, and surgical management for emergency surgery during the pandemic. RESULTS: One-hundred-and-thirty-four questionnaires were returned (N = 134) from 26 countries, of which 88% were surgeons, 7% surgical trainees, 4% anesthetists. 81% of the respondents got involved with COVID-19 crisis management. Social media were used by 91% of the respondents to access the recommendations, and 66% used videoconference tools for team communication. 51% had not received PPE training before the pandemic, 73% reported equipment shortage, and 55% informed about re-use of N95/FPP2/3 respirators. Dedicated COVID operating areas were cited by 77% of the respondents, 44% had performed emergency surgical procedures on COVID-19 patients, and over half (52%), favored performing laparoscopic over open surgical procedures. CONCLUSION: Surgical team members have responded with leadership to the COVID-19 pandemic, with crisis management principles. Social media and videoconference have been used by the vast majority to access guidelines or to communicate during social distancing. The level of adoption of current recommendations is high for organizational aspects and surgical management, but not so for PPE training and availability, and anesthesiologic considerations.

Adoption and patterns of use of invasive physiological assessment of coronary artery disease in a large cohort of 40821 real-world procedures over a 12-year period.

INTRODUCTION AND OBJECTIVES: Use of invasive physiological assessment in patients with coronary artery disease varies widely and is perceived to be low. We aimed to examine adoption rates as well as patterns and determinants of use in an unselected population undergoing invasive coronary angiography over a long time frame. METHODS: We retrospectively determined the per-procedure prevalence of physiological assessment in 40821 coronary cases performed between 2007 and 2018 in two large-volume centers. Adoption was examined according to procedure type and patient- and operator-related variables. Its association with relevant scientific landmarks, such as the release of clinical trial results and practice guidelines, was also assessed. RESULTS: Overall adoption was low, ranging from 0.6% in patients undergoing invasive coronary angiography due to underlying valve disease, to 6% in the setting of stable coronary artery disease (CAD); it was 3.1% in patients sustaining an acute coronary syndrome. Of scientific landmarks, FAME 1, the long-term results of FAME 2 and the 2014 European myocardial revascularization guidelines were associated with changes in practice. Publication of instantaneous wave-free ratio (iFR) trials had no influence on adoption rates, except for a higher proportion of iFR use. In 42.9% of stable CAD patients undergoing percutaneous coronary intervention there was no objective non-invasive evidence of ischemia, nor was physiological assessment performed. Younger operator age (4.5% vs. 4.0% vs. 0.9% for ages <40, 40-55 and >55 years, respectively; p<0.001) and later time of procedure during the day (2.9% between 6 and 8 p.m. vs. 4.4% at other times) were independent correlates of use of invasive physiology. CONCLUSIONS: Our study confirms the low use of invasive physiology in routine practice. The availability of resting indices did not increase adoption. Strategies are warranted to promote guideline implementation and to improve patient care and clinical outcomes.

Adoption and patterns of use of invasive physiological assessment of coronary artery disease in a large cohort of 40821 real-world procedures over a 12-year period.

INTRODUCTION AND OBJECTIVES: Use of invasive physiological assessment in patients with coronary artery disease varies widely and is perceived to be low. We aimed to examine adoption rates as well as patterns and determinants of use in an unselected population undergoing invasive coronary angiography over a long time frame. METHODS: We retrospectively determined the per-procedure prevalence of physiological assessment in 40821 coronary cases performed between 2007 and 2018 in two large-volume centers. Adoption was examined according to procedure type and patient- and operator-related variables. Its association with relevant scientific landmarks, such as the release of clinical trial results and practice guidelines, was also assessed. RESULTS: Overall adoption was low, ranging from 0.6% in patients undergoing invasive coronary angiography due to underlying valve disease, to 6% in the setting of stable coronary artery disease (CAD); it was 3.1% in patients sustaining an acute coronary syndrome. Of scientific landmarks, FAME 1, the long-term results of FAME 2 and the 2014 European myocardial revascularization guidelines were associated with changes in practice. Publication of instantaneous wave-free ratio (iFR) trials had no influence on adoption rates, except for a higher proportion of iFR use. In 42.9% of stable CAD patients undergoing percutaneous coronary intervention there was no objective non-invasive evidence of ischemia, nor was physiological assessment performed. Younger operator age (4.5% vs. 4.0% vs. 0.9% for ages <40, 40-55 and >55 years, respectively; p<0.001) and later time of procedure during the day (2.9% between 6 and 8 p.m. vs. 4.4% at other times) were independent correlates of use of invasive physiology. CONCLUSIONS: Our study confirms the low use of invasive physiology in routine practice. The availability of resting indices did not increase adoption. Strategies are warranted to promote guideline implementation and to improve patient care and clinical outcomes.

Age and functional relevance of coronary stenosis: a post hoc analysis of the ADVISE II trial.

BACKGROUND: The influence of age-dependent changes on fractional flow reserve (FFR) or instantaneous wave-free ratio (iFR) and the response to pharmacological hyperaemia has not been investigated. AIMS: We investigated the impact of age on these indices. METHODS: This is a post hoc analysis of the ADVISE II trial, including a total of 690 pressure recordings (in 591 patients). Age-dependent correlations with FFR and iFR were calculated and adjusted for stenosis severity. Patients were stratified into three age terciles. The hyperaemic response to adenosine, calculated as the difference between resting and hyperaemic pressure ratios, and the prevalence of FFR-iFR discordance were assessed. RESULTS: Age correlated positively with FFR (r=0.08, 95% CI: 0.01 to 0.15, p=0.015), but not with iFR (r=-0.03, 95% CI: -0.11 to 0.04, p=0.411). The hyperaemic response to adenosine decreased with patient age (0.12±0.07, 0.11±0.06, 0.09±0.05, for the 1st [33-58 years], 2nd [59-69 years] and 3rd [70-94 years] age tertiles, respectively, p<0.001) and showed significant correlation with age (r=-0.14, 95% CI: -0.21 to -0.06, p<0.001). The proportion of patients with FFR ≤0.80+iFR >0.89 discordance doubled in the first age tercile (14.1% vs 7.1% vs 7.0%, p=0.005). CONCLUSIONS: The hyperaemic response of the microcirculation to adenosine administration is age dependent. FFR values increase with patient age, while iFR values remain constant across the age spectrum. These findings contribute to explaining differences observed in functional stenosis classification with hyperaemic and non-hyperaemic coronary indices.

Instantaneous wave-free ratio guided multivessel revascularisation during percutaneous coronary intervention for acute myocardial infarction: study protocol of the randomised controlled iMODERN trial.

INTRODUCTION: Recent randomised clinical trials showed benefit of non-culprit lesion revascularisation in ST-elevation myocardial infarction (STEMI) patients. However, it remains unclear whether revascularisation should be performed at the index procedure or at a later stage. METHODS AND ANALYSIS: The instantaneous wave-free ratio (iFR) Guided Multivessel Revascularisation During Percutaneous Coronary Intervention for Acute Myocardial Infarction trial is a multicentre, randomised controlled prospective open-label trial with blinded evaluation of endpoints. After successful primary percutaneous coronary intervention (PCI), eligible STEMI patients with residual non-culprit lesions are randomised, to instantaneous wave-free ratio guided treatment of non-culprit lesions during the index procedure versus deferred cardiac MR-guided management within 4 days to 6 weeks. The primary endpoint of the study is the combined occurrence of all-cause death, recurrent myocardial infarction and hospitalisation for heart failure at 12 months follow-up. Clinical follow-up includes questionnaires at 3 months and outpatient visits at 6 months and 12 months after primary PCI. Furthermore, a cost-effectiveness analysis will be performed. ETHICS AND DISSEMINATION: Permission to conduct this trial has been granted by the Medical Ethical Committee of the Amsterdam University Medical Centres (loc. VUmc, ID NL60107.029.16). The primary results of this trial will be shared in a main article and subgroup analyses or spin-off studies will be shared in secondary papers. TRIAL REGISTRATION NUMBER: NCT03298659.