The latest medical research on Cardiothoracic Intensive Care
The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about cardiothoracic intensive care gathered by our medical AI research bot.
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Request AccessAortic remodelling based on false lumen communications in patients undergoing acute type I dissection repair with AMDS hybrid prosthesis: a substudy of the DARTS trial.
Cardiothoracic SurgeryThe Dissected Aorta Repair Through Stent Implantation trial demonstrated positive proximal aortic remodelling following aortic dissection repair with the AMDS Hybrid Prosthesis. In this study, we look to identify predictors of aortic remodelling following aortic dissection repair with AMDS including whether communications between branch vessels and the false lumen predict aortic growth.
The Dissected Aorta Repair Through Stent Implantation trial included patients who underwent Acute DeBakey type I aortic dissection repair with the AMDS from March 2017-January 2019. Anatomic measurements were collected from original computerized tomography scans. Measurements were taken at zones 2, 3, 6, and 9. Patients were grouped based on the number of false lumen communications with the supra-aortic branch vessels or visceral branch vessels.
Forty-seven patients were included in the original Dissected Aorta Repair Through Stent Implantation trial. Patients with false lumen communications with the supra-aortic branch vessels tended to have significant growth at zone 3(p = 0.02-0.0018), while greater numbers of visceral false lumen communications tended to predict aortic growth at zones 3 (p = 0.003), 6(p = 0.017-0.0087), and 9(p = 0.0016-0.0003).
Aortic remodelling following Acute DeBakey type I aortic dissection repair using the AMDS may be predicted by local false lumen communications with branch vessels. Patients undergoing Acute DeBakey type I aortic dissection repair were more likely to experience significant aortic growth in zone 3 with more head vessel communications and in zones 3, 6, and 9 with more visceral false lumen communications. Predictors of aortic remodelling may help to guide initial surgical management for aortic dissection patients.
A big data scheme for heart disease classification in map reduce using jellyfish search flow regime optimization enabled Spinalnet.
Pacing Clin ElectrophysiolThe disease related to the heart is serious and can lead to death. Precise heart disease prediction is imperative for the effective treatment of cardiac patients. This can be attained by machine learning (ML) techniques using healthcare data. Several models on the basis of ML predict and identify disease in the heart, but this model cannot manage a huge database because of the deficiency of the smart model. This paper provides an optimized SpinalNet with a MapReduce model to categorize heart disease.
The objective is to design a big data approach for heart disease classification using the proposed Jellyfish Search Flow Regime Optimization (JSFRO)-based SpinalNet.
The JSFRO-based SpinalNet offered effectual performance with the finest accuracy of 90.8%, sensitivity of 95.2% and specificity of 93.6%.
Self-reported dyspnoea and shortness of breathing deterioration in long-term survivors after segmentectomy or lobectomy for early-stage lung cancer.
Cardiothoracic SurgeryTo assess the self-reported current dyspnoea and perioperative changes of dyspnoea in long term survivors after minimally invasive segmentectomy or lobectomy for early-stage lung cancer.
Cross-sectional telephonic survey of patients alive and disease-free as of March 2023, with pathologic stage IA1-2, non-small cell lung cancer, assessed 1 to 5 years after minimally invasive segmentectomy or lobectomy (performed from January 2018 to January 2022). Current dyspnoea level: Baseline Dyspnoea Index score < 10. Perioperative changes of dyspnoea were assessed using the Transition Dyspnoea Index. A negative Transition Dyspnoea Index focal score indicates perioperative deterioration in dyspnoea.Mixed effect models were used to examine demographic, medical, and health-related correlates of current dyspnoea and changes of dyspnoea level.
152 of 236 eligible patients consented or were available to respond to the telephonic interview(67% response rate):90 lobectomies and 62 segmentectomies.The Baseline Dyspnoea Index score was lower (greater dyspnoea) in lobectomy patients (median 7, IQR 6-10) compared to segmentectomy (median 9, IQR 6-11), p = 0.034. 70% of lobectomy patients declared to have a current dyspnoea vs 53% after segmentectomy, p = 0.035.82% of patients after lobectomy reported a perioperative deterioration in their dyspnoea compared to 57% after segmentectomy, p = 0.002.Mixed effect logistic regression analysis adjusting for patient related factors and time elapsed from operation showed that segmentectomy was associated with a reduced risk of perioperative dyspnoea deterioration (as opposed to lobectomy) (OR 0.31, p = 0.004).
Our findings may be valuable to inform the shared decision-making process by complementing objective data on perioperative changes of pulmonary function.
Antegrade cerebral perfusion via the right subclavian artery during open distal arch or proximal descending aortic repair from left thoracotomy.
Cardiothoracic SurgeryIn the current endovascular era, open surgery through left posterolateral thoracotomy (PLT) with moderate to deep hypothermic circulatory arrest (D...
Evaluation of T-wave memory after accessory pathway ablation in pediatric patients with Wolff-Parkinson-White syndrome.
Pacing Clin ElectrophysiolT-wave memory (TWM) is a rare cause of T-wave inversion (TWI). Alterations in ventricular activation due to abnormal depolarization may cause repolarization abnormalities on the ECG, even if myocardial conduction returns to normal. These repolarization changes are defined as TWM. In our study, we aimed to determine the frequency of TWM development and the predictors affecting it in the pediatric population who underwent accessory pathway (AP) ablation due to Wolff-Parkinson-White (WPW) syndrome.
The data of patients with manifest AP who underwent electrophysiological studies and ablation between 2015 and 2021 were retrospectively analyzed. The study included 180 patients who were under 21 years of age and had at least one year of follow-up after ablation. Patients with structural heart disease, intermittent WPWs, recurrent ablation, other arrhythmia substrates, and those with less than one-year follow-up were excluded from the study. The ECG data of the patients before the procedure, in the first 24 h after the procedure, three months, and in the first year were recorded. The standard ablation technique was used in all patients.
Postprocedure TWM was observed in 116 (64.4%) patients. Ninety-three patients (51.7%) had a right-sided AP, and 87 patients (48.3%) had a left-sided AP. The presence of posteroseptal AP was found to be significantly higher in the group that developed TWM. Of these patients, 107 (93.1%) patients showed improvement at the end of the first year. Preprocedural absolute QRS-T angle, postprocedural PR interval, and right posteroseptal pathway location were identified as predictors of TWM.
The development of TWM is particularly associated with the right-sided pathway location, especially the right posteroseptal pathway location. The predictors of TWM are the preprocedural QRS-T angle, the postprocedural PR interval, and the presence of the right posteroseptal AP.
Features and outcomes of focal intimal disruption in acute type B intramural hematoma.
Cardiothoracic SurgeryFocal intimal disruption is a risk factor for adverse aorta-related events in acute type B intramural haematoma patients. This study evaluated the impact of focal intimal disruption on overall survival with a selective intervention strategy for large or growing focal intimal disruptions. Additionally, this study evaluated the risk factors associated with the growth of focal intimal disruption.
This retrospective study included all consecutive patients admitted for acute type B intramural haematoma between November 2004 and April 2021. The primary outcome was overall survival. The secondary outcome was cumulative incidence of composite aortic events and the growth of focal intimal disruption. The latter was calculated on centerline-reconstructed computed tomography images.
A total of 105 patients were included. A total of 106 focal intimal disruptions were identified in 73 patients (73/105, 69.5%). The 1- and 5-year cumulative incidence rates of composite aortic events were 36.2% and 39.2%, respectively. The 1- and 5-year overall survival were 93.3% and 81.5%, respectively. Initial maximal aortic diameter and large focal intimal disruption during acute phase were significant risk factors for composite aortic event, but not risk factors for overall survival. Early appearance interval of focal intimal disruption was a significant risk factor for growth of focal intimal disruption.
With a selective intervention strategy for large or growing focal intimal disruptions, the presence of large focal intimal disruption during acute phase does not affect overall survival. Early appearance interval was associated with the growth of focal intimal disruption.
Same evidence different recommendations: a methodological assessment of transatlantic guidelines for the management of valvular heart disease.
Cardiothoracic SurgeryTo identify methodological variations leading to varied recommendations between the American College of Cardiology (ACC)/American Heart Association (AHA) and the European Society of Cardiology (ESC)/European Association for Cardio-Thoracic Surgery (EACTS) valvular heart disease (VHD) Guidelines, and to suggest foundational steps towards standardizing guideline development.
An in-depth analysis was conducted to evaluate the methodologies used in developing the Transatlantic Guidelines for managing VHD. The evaluation was benchmarked against the standards proposed by the Institute of Medicine.
Substantial discrepancies were noted in the methodologies utilized in development processes, including writing committee composition, evidence evaluation, conflict of interest management, and voting processes. Furthermore, despite their mutual differences, both methodologies also demonstrate notable deviations from the IOM standards in several essential areas, including literature review and evidence grading. These dual variances likely influenced divergent treatment recommendations. For example, the ESC/EACTS recommends transcatheter edge-to-edge repair (TEER) for patients ineligible for mitral valve surgery, while the ACC/AHA recommends TEER based on anatomy, regardless of surgical risk. ESC/EACTS guidelines recommend a mechanical aortic prosthesis for patients under 60, while ACC/AHA guidelines recommend it for patients under 50. Notably, the ACC/AHA and ESC/EACTS guidelines have differing age cut-offs for surgical over transcatheter aortic valve replacement (<65 and <75 years, respectively).
Variations in methodologies for developing CPGs have resulted in different treatment recommendations that may significantly impact global practice patterns. Standardization of essential processes is vital to increase the uniformity and credibility of CPGs, ultimately improving healthcare quality, reducing variability and enhancing trust in modern medicine.
Multicentric experience of antegrade thoracic endovascular aortic repair for the treatment of thoracic aortic diseases.
Cardiothoracic SurgeryAim of this multicentre retrospective cohort study is to evaluate technical success, early and late outcomes of thoracic endovascular repair (TEVAR) with grafts deployed upside-down through antegrade access, to treat thoracic aortic diseases.
Antegrade TEVAR performed between January 2010 and December 2021 have been collected and analyzed. Both elective and urgent procedures were included. Exclusion criteria were endografts deployed into previous or concomitant surgical or endovascular repairs.
Fourteen patients were enrolled; 13 males (94%) with mean age of 71 years (IQR 62; 78). Five patients underwent urgent procedures (2 ruptured aortas and 3 symptomatic patients). Indication to treatment were 8 (57%) aneurysms/pseudoaneurysms, 3 (21%) dissections and 3 (21%) penetrating aortic ulcers. Technical success was achieved in all procedures. Early mortality occurred in 4 (28%) cases, all urgent procedures. Median follow-up was 13 months (IQR 1; 44). Late death occurred in 2 (20%) patients, both operated in elective setting. The first died at 19 months due to aortic-related reintervention, the second died at 34 months for a not aortic-related cause. Two patients (14%) underwent aortic-related reintervention for late type I endoleak. Survival rate in elective procedures was 100%, 84% and 67% at 12, 24 and 36 months respectively. Freedom from reintervention was 92%, 56% and 56% at 12, 24 and 36 months respectively.
Antegrade TEVAR can seldomly be considered an alternative when traditional retrograde approach is not feasible. Despite good technical success and low access-site complications, this study demonstrates high rates of late type I endoleak and aortic-related reinterventions.
Radiofrequency ablation-Real-time visualization of lesions and their correlation with underlying parameters.
Pacing Clin ElectrophysiolLesion durability and transmurality are crucial for successful radiofrequency (RF) ablation. This study provides a model of real-time RF lesion visualization and insights into the role of underlying parameters, as local impedance (LI).
A force-sensing, LI-sensing catheter was used for lesion creation in an ex vivo model involving cross-sections of porcine cardiac preparations. During 60 s of RF application, one measurement per second was performed regarding lesion size and available ablation parameters. In total, 1847 measurements from n = 36 lesions were performed. Power (20-50 W) and contact force (1-5 g, 10-15 g, 20-25 g) were systematically alternated.
Lesion formation was most prominent in the first seconds of RF application during which nonlinear lesion growth was observed (max. 1.08 mm/s for lesion depth and 2.71 mm/s for lesion diameter). Power levels determined the extent of lesion formation in the early phase. After 20 s, lesion size growth velocity approaches 0.1 mm/s at all power levels. LI changes were also highest in the first seconds (up to - 12 Ω/s) and decreased to less than - 0.1Ω/s after prolonged application.
Lesion formation in irrigated RF ablation is a nonlinear process. Final lesion size resulting from an RF application is mainly influenced by high rates of lesion growth in the first seconds of ablation. LI seems to be a good surrogate for differentiating changes in lesion formation.
Patent ductus arteriosus management in very-low-birth-weight prematurity: a place for early surgery?
Cardiothoracic SurgeryTo evaluate neonatal outcomes based on treatment strategies and time points for haemodynamically significant patent ductus arteriosus (hsPDA) in very-low-birth-weight (VLBW) preterm infants, with a particular focus on surgical closure.
This retrospective study included VLBW infants born between 2014 and 2021, received active treatment for hsPDA. Neonatal outcomes were compared between: (1) primary surgical closure vs primary ibuprofen, (2) early (<14th post-natal day) vs late primary surgical closure (≥14th post-natal day), and (3) primary vs secondary surgical closure after ibuprofen failure. Further analysis using 1:1 propensity score matching was performed. Logistic regression was conducted to analyze the risk factors for post-ligation cardiac syndrome (PLCS) and/or acute kidney injury (AKI).
A total of 145 hsPDA infants underwent active treatment for closure. In-hospital death rate and severe bronchopulmonary dysplasia (BPD) were similar between the primary surgical closure group and primary ibuprofen group in 1:1 matched analysis. Severe BPD was significantly higher in late surgical closure group than in early primary surgical closure group with 1:1 propensity score matching (72.7% vs 40.9%, p=0.033). The secondary surgical closure group showed the mildest clinical condition, however, the probability of PLCS/AKI was highest (38.6%), compared to early (15.2%) or late primary surgical group (28.1%, p<0.001) especially in extremely premature infants (gestational age <28weeks).
Surgical PDA closure is not inferior to pharmacological treatment. Timely decision and efforts should be made considering the harmful effect of prolonged PDA shunt exposure to minimize the risk of severe BPD and PLCS/AKI after surgical closure.
Open, endovascular, or hybrid repair of aortic arch disease: narrative review of diverse strategies with diverse options.
Cardiothoracic SurgeryThe management of aortic arch disease is complex. Open surgical management continues to evolve, and the introduction of endovascular repair is revolutionizing aortic arch surgery. Although these innovative techniques have generated the opportunity for better outcomes in select patients, they have also introduced confusion and uncertainty regarding best practices. In New York, we have developed a collaborative group named the New York Aortic Consortium (NYAC) as a means of crosslinking knowledge and working together to better understand and treat aortic disease. In our meeting in May 2023, regional aortic experts and invited international experts discussed the contemporary management of aortic arch disease, differences in interpretation of the available literature, as well as the integration of endovascular technology into disease management. In this review article, we summarize the current state of aortic arch surgery.
Approaches to aortic arch repair have evolved substantially, whether it be methods to reduce cerebral ischaemia, improve hemostasis, simplify future operations, or expand options for high-risk patients with endovascular approaches. However, the transverse aortic arch remains challenging to repair. Amongst our collaborative group of cardiac/aortic surgeons, we discovered a wide disparity in our practice patterns and management strategies of patients with aortic arch disease.
It is important to build unique institutional expertise in the context of complex and evolving management of aortic arch disease with open surgery, endovascular repair, and hybrid approaches, tailored to the risk profiles and anatomical specifics of individual patients.
Return to work and activity after rib-fixation for acute chest trauma: first application of a validated patient-reported outcomes assessment tool.
Cardiothoracic SurgeryRib fractures present a heavy pain and functional burden in trauma. Our primary aim was to determine return to work in patients with acute rib fractures requiring surgical stabilisation of rib fractures. Our secondary outcomes were pain and quality of life. We also document the first application of the Work Productivity and Activity Impairment Instrument, a validated injury-specific patient-reported outcome measure, for chest wall injury in the literature.
A retrospective review was conducted of patients with rib fractures requiring surgical fixation in a single centre between 2008-2020. After applying inclusion and exclusion criteria to ensure relevance, all eligible patients were asked to complete patient reported outcome measure questionnaires.
Of 1841 trauma patients with rib fractures, 66 underwent surgical fixation. Thirty-nine patients were eligible and thirty-one completed the questionnaires. Pre-injury and post-injury answers were compared. The number of patients in employment decreased post-operatively from 22 to 16 (p = 0.006). For those that returned to work there was no difference in hours missed but reduced weekly hours and productivity scores. There were significantly more patients with pain and on pain relief. There was a lower quality of life score post-operatively.
Approximately 1-in-5 patients who require surgical fixation for rib fractures will not return to work. This is the first chest wall trauma study that uses the Work Productivity and Activity Impairment Instrument, a validated tool for work productivity outcomes. We recommend this instrument as a reliable tool for investigating return to work outcomes in trauma patients.
