Publications by authors named "Sergio Baptista"

Background: Age-related remodelling has the potential to affect the microvascular response to hyperemic stimuli. However, its precise effects on the vasodilatory response to adenosine and contrast medium, as well as its influence on fractional flow reserve (FFR) and contrast fractional flow reserve (cFFR), have not been previously investigated. We investigate the impact of age on these indices.

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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.

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Article Synopsis
  • Clinical events can occur after percutaneous coronary intervention (PCI), especially in complex cases, and using advanced intracoronary imaging and pressure guidewires may help reduce these risks.
  • The OPTI-XIENCE study is an international, multicenter prospective observational study involving 1,064 patients with specific high-risk characteristics undergoing stent implantation, monitoring them for 12 months.
  • The study aims to evaluate the effectiveness of using these intracoronary tools, with the primary focus on the rate of target lesion failure after one year, while also assessing additional cardiovascular outcomes.
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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.

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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.

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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.

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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).

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Article Synopsis
  • - Kounis syndrome is an acute coronary syndrome triggered by hypersensitivity reactions, leading to issues like coronary artery spasm and stent thrombosis due to mast-cell activation.
  • - A case is presented of a man who experienced a heart attack 20 minutes after receiving the COVID-19 vaccine, which was linked to previous reactions after an influenza vaccine, both containing polysorbate 80.
  • - This case highlights the importance of recognizing Kounis syndrome, especially as it can be life-threatening and often goes undiagnosed, emphasizing the need for proper diagnosis and future drug avoidance.
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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.

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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.

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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).

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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.

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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.

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Objective: To evaluate agreement between instantaneous wave free ratio (iFR) and fractional flow reserve (FFR) for the functional assessment of nonculprit coronary stenoses at staged follow-up after ST-segment elevation myocardial infarction (STEMI).

Results: We measured iFR and FFR at staged follow-up in 112 STEMI patients with 146 nonculprit stenoses. Median interval between STEMI and follow-up was 16 (interquartile range 5-32) days.

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Introduction And Objectives: Recent randomized controlled trials have evaluated the benefit of extended antithrombotic therapy in secondary prevention of acute coronary syndrome (ACS). However, the numerous and strict enrollment criteria may limit the validity and reproducibility of the published results in clinical practice. Our goal was to estimate the eligibility for participation in two randomized clinical trials in a group of patients followed for ACS.

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Background: Intracoronary physiology is increasingly used in nonculprit stenoses of patients with acute coronary syndromes (ACS). However, evidence regarding the safety of fractional flow reserve-based deferral in patients with ACS, compared with patients with stable angina pectoris (SAP), is scarce.

Objectives: The aim of this study was to evaluate the safety of revascularization deferral on the basis of fractional flow reserve interrogation of nonculprit lesions in patients with ACS.

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Nonculprit lesions are frequently observed in patients with ST-segment elevation myocardial infarction. Results from recent randomized clinical trials suggest that complete revascularization after ST-segment elevation myocardial infarction improves outcomes. In this state-of-the-art paper, the authors review these trials and consider how best to determine which nonculprit lesions require revascularization and when this should be performed.

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Article Synopsis
  • The study investigates different cutoff values for the instantaneous wave-free ratio (iFR) in assessing nonculprit stenoses in patients with ST-segment elevation myocardial infarction.
  • It found that an iFR cutoff value of <0.90 is most effective for determining hemodynamic significance, showing high negative predictive value, especially at higher iFR thresholds.
  • These results suggest that using iFR <0.90 provides the best classification agreement between acute and follow-up assessments of nonculprit stenoses in this patient population.
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  • Effective communication among surgeons and anesthesiologists is crucial in managing severe trauma, and the joint DSTC-DATC courses serve as important teamwork training opportunities.
  • A study involving 93 participants showed that after attending these courses, candidates reported a significant improvement in their communication skills, particularly valuing routine communication and team debriefs.
  • The training led to enhanced perceptions of intraoperative communication, indicating a potential positive impact on patient care, though further studies are needed to assess the long-term effects.
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Importance: Approximately one-third of patients considered for coronary revascularization have diabetes, which is a major determinant of clinical outcomes, often influencing the choice of the revascularization strategy. The usefulness of fractional flow reserve (FFR) to guide treatment in this population is understudied and has been questioned.

Objective: To evaluate the usefulness and rate of major adverse cardiovascular events (MACE) of integrating FFR in management decisions for patients with diabetes who undergo coronary angiography.

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Objectives: This study sought to evaluate sex differences in procedural characteristics and clinical outcomes of instantaneous wave-free ratio (iFR)- and fractional flow reserve (FFR)-guided revascularization strategies.

Background: An iFR-guided strategy has shown a lower revascularization rate than an FFR-guided strategy, without differences in clinical outcomes.

Methods: This is a post hoc analysis of the DEFINE-FLAIR (Functional Lesion Assessment of Intermediate stenosis to guide Revascularization) study, in which 601 women and 1,891 men were randomized to iFR- or FFR-guided strategy.

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Importance: Invasive physiologic indices such as fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are used in clinical practice. Nevertheless, comparative prognostic outcomes of iFR-guided and FFR-guided treatment in patients with type 2 diabetes have not yet been fully investigated.

Objective: To compare 1-year clinical outcomes of iFR-guided or FFR-guided treatment in patients with and without diabetes in the Functional Lesion Assessment of Intermediate Stenosis to Guide Revascularization (DEFINE-FLAIR) trial.

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Background: Physicians are not always comfortable deferring treatment of a stenosis in the left anterior descending (LAD) artery because of the perception that there is a high risk of major adverse cardiac events (MACE). The authors describe, using the DEFINE-FLAIR (Functional Lesion Assessment of Intermediate Stenosis to Guide Revascularisation) trial, MACE rates when LAD lesions are deferred, guided by physiological assessment using fractional flow reserve (FFR) or the instantaneous wave-free ratio (iFR).

Objectives: The purpose of this study was to establish the safety of deferring treatment in the LAD using FFR or iFR within the DEFINE-FLAIR trial.

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