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BackgroundTeamwork across medical specialties improves patient outcomes. However, it also places an additional strain on team leaders, who must mediate between the medical specialties while at the same time belonging to one of them. We examine whether a cross-training incorporating communication and leadership skills can enhance multispecialty teamwork in Heart Teams and enable Heart Team leaders.MethodIn a prospective observational study, the authors surveyed physicians working in multispecialty Heart Teams worldwide, who participated in a cross-training course. Survey responses were collected at the beginning of the course and 6 months later, after course completion. Furthermore, for a subsample of participants, external assessments of course participants’ communication and presentation skills at the beginning and at the end of the training were elicited. The authors conducted mean comparison tests and difference-in-difference analysis.ResultsSixty-four physicians were surveyed. A total of 547 external assessments were collected. The cross-training significantly improved participant-rated teamwork across medical specialties, and communication and presentation skills as rated by participants and external assessors who were blind to the time structure or training context.ConclusionThe study highlights how a cross-training can enable leaders of multispecialty teams in their leadership role by raising awareness of other specialties’ skills and knowledge. Cross-training combined with communication skills training is an effective measure to improve collaboration in Heart Teams.

The microbiology, epidemiology, diagnostics, and treatment of infective endocarditis (IE) have changed significantly since the Duke Criteria were published in 1994 and modified in 2000. The International Society for Cardiovascular Infectious Diseases (ISCVID) convened a multidisciplinary Working Group to update the diagnostic criteria for IE. The resulting 2023 Duke-ISCVID IE Criteria propose significant changes, including new microbiology diagnostics (enzyme immunoassay for Bartonella species, PCR, amplicon/metagenomic sequencing, in situ hybridization), imaging ([18F]FDG PET/CT, Cardiac Computed Tomography), and inclusion of intraoperative inspection as a new Major Clinical Criterion. The list of “typical” microorganisms causing IE was expanded and includes pathogens to be considered as typical only in the presence of intracardiac prostheses. The requirements for timing and separate venipunctures for blood cultures were removed. Last, additional predisposing conditions (transcatheter valve implants, endovascular cardiac implantable electronic devices, prior IE) were clarified. These diagnostic criteria should be updated periodically by making the ISCVID-Duke Criteria available online as a “Living Document”.

Homograft heart valves may have significant advantages and are preferred for the repair of congenital valve malformations, especially in young women of childbearing age, athletes and in patients with active endocarditis. A growing problem, however, is the mismatch between tissue donation and the increasing demand. The aim of this paper is to describe the initiation process of a homograft procurement program to attenuate the shortage of organs. A comprehensive description of the infrastructure and procedural steps required to initiate a cardiac and vascular tissue donation program combined with a prospective follow-up of all homografts explanted at our institution. Between January 2020 and May 2022, 28 hearts and 12 pulmonary bifurcations were harvested at our institution and delivered to the European homograft bank. Twenty-seven valves (19 pulmonary valves, 8 aortic valves) were processed and allocated for implantation. The reasons for discarding a graft were either contamination (n = 14), or morphology (n = 13) or leaflet damage (n = 2). Five homografts (3 PV, 2 AV) have been cryopreserved and stored while awaiting allocation. One pulmonary homograft with a leaflet cut was retrieved by bicuspidization technique and awaits allocation, as a highly requested small diameter graft. The implementation of a tissue donation program in cooperation with a homograft bank can be achieved with reasonable additional efforts at a transplant center with an in-house cardiac surgery department. Challenging situations with a potential risk of tissue injury during procurement include re-operation, harvesting by a non-specialist surgeon and prior central cannulation for mechanical circulatory support.

There is a lack of information about cardiac surgery training and professional practice in Latin American (LATAM) countries. This study is the first comparative analysis of cardiac surgical training and professional practice across LATAM and provides the fundamentals for future academic projects of the Latin American Association of Cardiac and Endovascular Surgery (LACES).International survey-based comparative analysis of the training and professional practice of cardiac surgeons across LATAM. Trainees (residents/fellows) and staf (graduated) surgeons from LATAM countries were included.A total of 289 respondents (staf surgeons N=221 [76.5%]; residents/fellows N=68 [23.5%]) from 18 different countries participated in the survey. Most surgeons (N=92 [45.3%]) reported being unsatisfied with their salaries. Most respondents (N=181 [62.6%]) stated that it was difficult to obtain a leadership position, and 149 (73.8%) stated that it was difficult to find a job after completing training. Only half of the trainee respondents (N=32 [47.1%]) reported that their program had all resident spots occupied. Only 22.1% (N=15) of residents/fellows were satisfied with their training programs. The majority (N=205 [70.9%]) of respondents would choose cardiac surgery as their specialty again. Most surgeons (N=129 [63.9%]) and residents/fellows (N=52 [76.5%]) indicated that the establishment of a LATAM cardiac surgery board examination would be beneficial.Modernization and standardization of training, as well as greater access to opportunities, may be required in LATAM to increase professional satisfaction of cardiac surgeons and to reduce disparities in the specialty. Such changes may enhance the regional response to the dynamic challenges in the feld.

International audience; BackgroundFor infective endocarditis (IE) with extensive perivalvular lesions or end-stage cardiac failure, heart transplantation (HT) may be the last resort.MethodsWe retrospectively collected all cases of HT for IE within the International Collaboration on Endocarditis (ICE) network.ResultsBetween 1991 and 2021, 20 patients (5 women, 15 men), median age 50 years [interquartile range, 29-61], underwent HT for IE in Spain (n = 9), France (n = 6), Switzerland (n = 2), Colombia, Croatia, and USA (n = 1). IE affected prosthetic (n = 10), and native valves (n = 10), primarily aortic (n = 11) and mitral (n = 6). The main pathogens were oral streptococci (n = 8), Staphylococcus aureus (n = 5), and Enterococcus faecalis (n = 2). The major complications included heart failure (n = 18), peri-annular abscess (n = 10), and prosthetic valve dehiscence (n = 4). Eighteen patients had previous cardiac surgery for this episode of IE, and four were on circulatory support before HT (left ventricular assist-device and extra-corporeal membrane oxygenation, 2 patients each). The median time interval between first symptoms of IE and HT was 44.5 days [22-91.5]. The main post-HT complication was acute rejection (n = 6). Seven patients died (35%), four during the first month post-HT. Thirteen (81%) of the 16 patients discharged from the hospital survived with a median follow-up of 35.5 months [4-96.5] after HT, and no relapse of IE.ConclusionsIE is not an absolute contraindication for HT: Our case series and the literature review support that HT may be considered as a salvage treatment in highly-selected patients with intractable IE.

Background Acute type A aortic dissection (AAAD) is a life-threatening condition with high mortality within 24 hours. We hypothesized if there is a correlation between seasonal weather changes and the occurrence of AAAD. The aim of the present study was to identify seasonal specific weather and patient characteristics predicting the occurrence of AAAD. Methods This is a retrospective analysis of all consecutive patients of our department with AAAD between January 1st 2006 and December 31st 2016. The national meteorological department provided the data of temperature, humidity and air pressure during the study period. The occurrence of AAAD, preoperative neurological impairment and mortality were analyzed in correlation with the obtained daily weather data within the entire cohort and in patients with and without hypertension separately. Results A total of 517 patients were included. Mean age was 63.4±13 years, 69.4% were male and 68.8% had documented hypertension. In-hospital mortality was 17.7%. In the whole cohort, the occurrence of AAAD was significantly increased in March, October, December (P=0.016). In hypertensive patients, the occurrence was increased 34% with rising temperature (0.1-9.6 °C, OR1.34, 95% CI: 1.06-1.69, P=0.015). There was no correlation between weather variables and preoperative neurological impairment or mortality. Conclusions Our data suggests a relation between an increasing number of events of AAAD and certain months within our catchment area and a significantly increased occurrence with rising temperatures (independent from absolute temperature at time of the event) in hypertensive patients.

The 7-year long-term survival after Aspergillus fumigatus mediastinitis after heart transplantation, an uncommonly described condition, is herein reported. A 66-year-old male developed an infection with A. fumigatus covering the entire thoracic cavity with a fungal turf after orthotopic heart transplantation. Repeated surgical removal of infectious and necrotic tissue together with innovative topical treatment using voriconazole and chlorhexidine combined with systemic antifungal treatment, helped in controlling the infection. Definitive wound closure was achieved by standard sternal refixation and latissimus dorsi muscle flap plasty. Survival after A. fumigatus mediastinitis after heart transplantation was achieved with sequential debridement in combination with topical application of antifungal agents.

International audience; Background - Infective endocarditis (IE) is a common and serious complication in patients receiving chronic hemodialysis (HD). Objectives - This study sought to investigate whether there are significant differences in complications, cardiac surgery, relapses, and mortality between IE cases in HD and non-HD patients. Methods - Prospective cohort study (International Collaboration on Endocarditis databases, encompassing 7,715 IE episodes from 2000 to 2006 and from 2008 to 2012). Descriptive analysis of baseline characteristics, epidemiological and etiological features, complications and outcomes, and their comparison between HD and non-HD patients was performed. Risk factors for major embolic events, cardiac surgery, relapses, and in-hospital and 6-month mortality were investigated in HD-patients using multivariable logistic regression. Results - A total of 6,691 patients were included and 553 (8.3%) received HD. North America had a higher HD-IE proportion than the other regions. The predominant microorganism was Staphylococcus aureus (47.8%), followed by enterococci (15.4%). Both in-hospital and 6-month mortality were significantly higher in HD versus non-HD-IE patients (30.4% vs. 17% and 39.8% vs. 20.7%, respectively; p

Fungal osteomyelitis is an uncommon complication after cardiac surgery and associated with high mortality. A case of Candida albicans and Staphylococcus epidermidis osteomyelitis with device infection after implantation of a left ventricular assist device in a 60-year-old male patient is presented here. After clinical identification and confirmation with microbiological examinations and fluorodeoxyglucose positron emission tomography (FDG-PET) scan, debridement was performed. Surgical specimens grew C. albicans and S. epidermidis. Fluconazole, daptomycin, and negative pressure wound therapy were initiated, but failed to achieve healing. Total sternectomy and pectoralis flap reconstruction were performed. There was no recurrent infection for C. albicans on a prolonged antifungal regime. The combination of antifungal therapy and aggressive surgical debridement may be useful to control fungal osteomyelitis.

Prosthetic vascular graft infections of the thoracic aorta are rare but can be fatal. Our comparison of collagen- and gelatin-coated grafts showed that collagen-coated grafts were associated with increased biofilm formation and bacterial adherence in vitro and with higher rates of perioperative vascular graft infections in vivo.

BACKGROUND AND AIM Acute type A aortic dissection (AAAD) is a life-threatening condition. The emergency operation usually results in 20% perioperative mortality. If preoperative cardiopulmonary resuscitation (CPR) is necessary, there is an increase in the rate of mortality. The aim of the present study was to report the outcomes of AAAD surgery in patients requiring preoperative CPR in a high-volume center. METHODS A retrospective analysis of preoperative, intraoperative, postoperative, and follow-up data in patients requiring preoperative CPR in the setting of AAAD surgery was performed. RESULTS Between January 2006 and December 2018, 637 patients underwent emergency surgery for AAAD. In total, 26 (4%) patients received CPR; the mean age was 63 ± 13 years; and 18 were male (69%). The reason for CPR was acute tamponade (N = 14, 54%), pulseless electrical activity (N = 5, 19%), asystole or ventricular fibrillation (N = 7, 27%), and four (15%) patients were not operated due to prolonged CPR and severe initial neurological impairment. There was no intraoperative mortality. The in-hospital mortality rate was 50% (N = 11), due to severe cerebral damage confirmed by computed tomography, and six patients (55%) were older than 70 years. The median follow-up was 35 months (7-149), which was 100% complete; two patients had permanent hemiplegia, one had anterior spinal syndrome, and other two died during the follow-up. The overall survival rate was 41% (n = 9). CONCLUSION Surgery outcomes were still reasonable in AAAD patients requiring preoperative CPR in a high-volume center.

To evaluate the diagnostic accuracy and specific imaging characteristics of positron emission tomography/computed tomography with 18F-fluorodeoxyglucose (PET/CT), contrast enhanced CT (CE-CT), and a combined imaging approach (CE-PET/CT) in patients with infectious/mycotic (MAA), inflammatory (IAA), and non-infected, non-inflammatory abdominal aortic aneurysm (AAA).In this single-center retrospective cohort study, all imaging data sets of 29 consecutive patients with clinically suspected MAA or IAA were anonymised with different, reshuffled identification numbers and retrospectively and independently analysed by two experienced readers, blinded to all clinical patient data. Readers determined the presence or absence and MAA, IAA and AAA and of predefined imaging characteristics (e.g. fluid collection), and measured metabolic activity and wall thickness of all aneurysms. A multidisciplinary team of specialists served as standard of reference and re-evaluated every clinical case, considering all clinical, laboratory, microbiological, histopathological and imaging results, including all follow-up examinations.Diagnostic accuracy was higher in PET/CT as compared to CE-CT in differentiating AAA from MAA and IAA: area under the receiver operating characteristic curve (AUC-ROC) 0.81 (95% confidence intervals 0.69-0.92) and 0.63 (0.52-0.74) (P = 0.027). Specific imaging characteristics were significantly associated with different types of aneurysms (P0.05), i.e. very high metabolic activity and dorsal sparing of metabolic activity in PET/CT and wall thickening in CE-CT were indicative for IAA; fat stranding and fluid collections in CE-CT were associated with MAA; while low metabolic acitivity and absence of wall thickening in PET/CT, and less fat stranding and absence of wall thickening in CE-CT were indicative for non-infected, non-inflammatory AAA.Specific imaging characteristics of PET/CT and CE-CT may be helpful in differentiating between MAA, IAA, and non-infected, non-inflammatory AAA.

The positional statement of the Asian Cardiovascular and Thoracic Annals is presented.

Surgical implantation of a complete or incomplete ring to reduce the valve annulus and improve leaflet coaptation is the mainstay of mitral valve surgery. The Cardioband® system (Edwards Lifesciences, Irvine, CA, USA) was designed to address the pathophysiological mechanism of annular dilatation through a catheter-based approach. We present the histopathological workup of a Cardioband® device, which had been implanted 21 months earlier in a 34-year-old male with ischemic cardiomyopathy. Device examination demonstrate a well-positioned and securely anchored device. The described tissue reactions may have an impact on choice of device and timing in case of re-do surgery.

This is a consensus document of the Spanish Society of Cardiovascular Infections (SEICAV), the Spanish Society of Thoracic and Cardiovascular Surgery (SECTCV) and the Biomedical Research Centre Network for Respiratory Diseases (CIBERES). These three entities have brought together a multidisciplinary group of experts that includes anaesthesiologists, cardiac and cardiothoracic surgeons, clinical microbiologists, infectious diseases and intensive care specialists, internal medicine doctors and radiologists. Despite the clinical and economic consequences of sternal wound infections, to date, there are no specific guidelines for the prevention, diagnosis and management of mediastinitis based on a multidisciplinary consensus. The purpose of the present document is to provide evidence-based guidance on the most effective diagnosis and management of patients who have experienced or are at risk of developing a post-surgical mediastinitis infection in order to optimise patient outcomes and the process of care. The intended users of the document are health care providers who help patients make decisions regarding their treatment, aiming to optimise the benefits and minimise any harm as well as the workload.

Primary cardiac neoplasms are uncommon and often present with nonspecific cardiac symptoms. Proper treatment can only be initiated after histological analysis of a surgical specimen. Two cases of primary cardiac lymphoma with various clinical presentations and different growth patterns are presented here.

Infective endocarditis is an uncommon disease but still carries high morbidity and mortality. The management of the patient with infective endocarditis changed over the last years with improvement of diagnostic tools and early aggressive medical and surgical treatment. The multidisciplinary approach is an accepted standard of practice and approximately 40-50% of patients discussed in endocarditis teams undergoes surgery. Timing of surgery remains a debated issue, while complexity of surgery remains a characteristic of this pathology. Although isolated native valve endocarditis remains associated with acceptable morbidity and mortality, the same still high in the setting of multiple valve surgery and prosthetic infections.

A patient with chronic pulmonary artery hypertension and acute dissection of a main and right pulmonary aneurysm (82 mm) presented with acute myocardial infarction and cardiogenic shock secondary to compression of the left main coronary artery. She required emergency pulmonary artery replacement. She ultimately died due to multiorgan failure and sepsis. (Level of Difficulty: Intermediate.), Central Illustration, A patient with chronic pulmonary artery hypertension and acute dissection of a main and right pulmonary aneurysm (82 mm) presented with acute…

Resumen: La cirugía cardiovascular es la especialidad médica que se ocupa de la prevención, diagnóstico y tratamiento quirúrgico de los trastornos y enfermedades del sistema cardiocirculatorio. Los continuos y rápidos avances en el diagnóstico y tratamiento de las enfermedades cardiovasculares justifican la necesidad de llevar a cabo una actualización de los principales aspectos definitorios y organizativos de la especialidad, relacionados con la profesión (de la práctica, calidad asistencial), con el programa docente de la especialidad, la formación continuada de los cirujanos, los procesos de acreditación desde la Sociedad Española de Cirugía Torácica-Cardiovascular, entre otros.Este documento, elaborado por expertos de la cirugía cardiovascular, representa la opinión de la Sociedad Española de Cirugía Torácica-Cardiovascular y actualiza los principales aspectos de la especialidad en nuestro país. Abstract: Cardiovascular surgery is the medical specialty that deals with the prevention, diagnosis, and surgical treatment of disorders and diseases of the circulatory system. The continuous and rapid advances in the diagnosis and treatment of cardiovascular diseases justify the need to update the main, defining, and organisational aspects of the specialty, related to the profession (its practice, quality care), aspects on the teaching program of the specialty, the continuing education program of the surgeons, the processes of accreditation from the Spanish Society of Thoracic-Cardiovascular Surgery, etc.This document, prepared by experts in cardiovascular surgery, represents the opinion of the Spanish Society of Thoracic-Cardiovascular surgery and updates the main aspects of the specialty in our country. Palabras clave: Cirugía cardiovascular, Cirugía cardíaca, Cirugía torácica, Cirugía vascular, Recomendaciones, Keywords: Cardiovascular surgery, Cardiac surgery, Thoracic surgery, Vascular surgery, Recommendations

OBJECTIVE The timely management of vascular graft/endograft infection (VGEI) is crucial to a favourable outcome, yet can be challenging as there is no validated gold standard diagnostic test. Recently, a new case definition has been proposed by the Management of Aortic Graft Infection Collaboration (MAGIC) to close the diagnostic gap. The aim of this study was to validate the MAGIC criteria as a suggested diagnostic standard for the diagnosis of suspected VGEI in the prospective Vascular Graft Cohort study (VASGRA). METHODS VASGRA is an open, prospective, observational cohort study. Prospective participants in VASGRA between 2013 and 2019 were included (257 patients; 137 with VGEI). The accuracy of the MAGIC criteria for a diagnosis of VGEI was evaluated retrospectively by calculating the sensitivity and specificity vs. the consensually adjudicated VASGRA infection status. RESULTS The VASGRA cohort categorised 137 (53.3%) patients as "diseased" and 120 patients as "not diseased"; using the MAGIC criteria, 183/257 (71.2%) patients were considered to be "diseased". Thus, for the MAGIC criteria, a sensitivity of 99% (95% confidence interval [CI] 96-100) and a specificity of 61% (95% CI 52-70) were calculated. Considering suspected VGEI according to the MAGIC criteria as "not diseased" achieved congruent assessments of the VASGRA team and the MAGIC criteria, with a sensitivity of 93% and a specificity of 93%. The accuracy of the MAGIC criteria for the different graft locations were also compared. If the suspected VGEIs were assigned to the "not diseased" group, VGEIs of the thoracic aorta seemed to have a poorer sensitivity (86%; 95% CI 73-95) than the other graft locations. CONCLUSION The current MAGIC criteria offer good sensitivity and specificity in the context of true infections but a reduced specificity for a possible VGEI.

SummaryBackgroundDifficult-to-treat infections caused by antibiotic susceptible strains have been linked with the occurrence of persisters. Persisters are a subpopulation of dormant bacteria that tolerate antibiotic exposure despite lacking genetic resistance. They can be identified phenotypically upon plating on nutrient agar because of their altered growth dynamics, resulting in colony size heterogeneity. The occurrence of within-patient bacterial phenotypic heterogeneity in various infections and clinical determinants of persister formation remain unknown.MethodsWe plated bacteria derived from 132 patient-samples of difficult-to-treat infections directly on nutrient-rich agar and monitored colony growth by time-lapse imaging. Of these, we retained 36 Staphylococcus aureus mono-cultures for further analysis. We investigated clinical factors potentially associated with increased colony growth-delay with regression analyses. Additionally, we corroborated the clinical findings using in vitro grown static biofilms, exposed to distinct antibiotics.ResultsThe extent of phenotypic heterogeneity of patient-derived S. aureus varied substantially between patients. Increased heterogeneity coincided with increased median growth-delay. Multivariable regression showed that rifampicin treatment was significantly associated with increased median growth-delay. S. aureus grown in biofilms and exposed to high concentrations of rifampicin or a combination of rifampicin with either clindamycin or levofloxacin exhibited prolonged growth-delay, correlating with a strain-dependent increase in antibiotic tolerance.ConclusionsUpon direct cultivation on nutrient-rich agar, S. aureus from difficult-to-treat infections commonly exhibited colony size heterogeneity. This was due to heterogeneous delays in growth resumption, with delays larger than two days in the most extreme cases. Since bacteria in a dormant state are tolerant to antibiotics, the observation of large growth-delays might have direct clinical implications. Future studies are needed to assess the potential of bacterial phenotypic heterogeneity quantification for staphylococcal infections prognosis.

OBJECTIVES Technical skills are an essential component of cardiac surgery, and the operating room is becoming an even more challenging environment for trainees who want to acquire such skills. Simulation, which partially overcomes this limitation, represents a valid adjunct to surgical education. We describe an original simulator and provide results in terms of trainees’ evaluations and ratings. METHODS We used a humanoid that is a silicone replica of the chest of an adult human that provides a complete anatomical platform for hands-on skin-to-skin practice of surgical techniques in arrested heart coronary artery bypass graft (CABG) surgery cases. Learners were residents in cardiac surgery. The teaching sessions included 2 full three-vessel CABG procedures using both mammary arteries and a hydrogel vein. Five board-certified cardiovascular surgeons scored the surgical activity of all trainees. The trainees were asked to complete an exit questionnaire to evaluate their course. RESULTS Overall, 16 residents participated in the simulation, including 5 women and 11 men, with a mean age of 30 ± 4 years, all of whom had at least 2 years of cardiac surgery training. All participants completed the 2 CABG operations. Three mammary arteries (4.6%) were seriously damaged during harvesting. In 1 case (3.1%), an aortic tear occurred during aortic cannulation. Each trainee performed overall 6 distal and 2 proximal coronary anastomoses. All participants agreed that the ‘humanoid reproduces real-life situations, the feeling is realistic, and they are now more confident in performing coronary anastomosis’. CONCLUSIONS Trainees involved in this simulation curriculum acquired and refined technical skills that could be applied directly to human patients. In addition, we were able to foster a higher level of teamwork within the operating room team., Technical skills are an essential component of cardiac surgery.

Elias Bodendoerfer, 1 Nicolas Personnic, 1 Carlos A Mestres, 2 Markus J Wilhelm, 2 Lilly Meyer, 3 Barbara Hasse 3 1University of Zurich, Institute of Medical Microbiology, Zurich, Switzerland; 2University Hospital Zurich, Clinic for Cardiac Surgery, Zurich, Switzerland; 3University Hospital Zurich, Department of Infectious Diseases and Hospital Epidemiology, Zurich, SwitzerlandCorrespondence: Elias BodendoerferInstitute of Medical Microbiology, University of Zurich, Gloriastrasse 28/30, Zürich, CH-8006, SwitzerlandTel +41 44 634 26 18Email ebodendoerfer@imm.uzh.chAbstract: Bacteremia by Pandoraea spp. has rarely been described before. We report the first case of a P. pnomenusa possible prosthetic valve endocarditis, according to the modified Duke criteria, in a 37-year old male injecting drug user suffering from recurrent endocarditis. Furthermore, we demonstrate biofilm formation by the P. pnomenusa isolates of this patient and investigate antibiotic resistance.Keywords: prosthetic valve endocarditis, central venous catheter, bacteremia, Pandoraea pnomenusa, biofilm formation, antibiotic resistance

La endocarditis infecciosa, la infeccion cardiovascular en general, es una enfermedad medico-quirurgica compleja que requiere un tratamiento multidisciplinario precoz, especifico y agresivo. A pesar de los avances medicos, esta sigue siendo una enfermedad con una morbi-mortalidad elevada, por lo que el tratamiento antibiotico se complementa en un 40-50% de los pacientes mediante intervencion quirurgica. Por lo tanto, es necesario conocer las opciones que pueden llegar a ser utilizadas para extirpar el tejido infectado. El objetivo de este trabajo es discutir aspectos de interes en la cirugia de la endocarditis infecciosa. Palabras clave: Endocarditis infecciosa; Infeccion cardiovascular; Valvula nativa; Valvula protesica; Dispositivo intracardiaco; Protesis vascular; Endocarditis Team = Infective endocarditis (IE) is a complex disease that requires a multidisciplinary approach and early and aggressive treatment. Despite medical and surgical advances, this disease still has high morbidity and mortality. The antibiotic treatment is complemented in 40-50% of the cases with surgical intervention. Thus, it is useful to be aware of the possibilities that might be contemplated in order to excise the infected tissues. The aim of this work is to discuss current surgical aspects of interest in the surgery IE. Key words: Infective endocarditis; Cardiovascular Infection; Native valve; Prosthetic valve; Intracardiac device,Vascular graft; Endocarditis Team

Coronary Artery Bypass Grafting (CABG) is sometimes necessary in acute Type A Aortic Dissection (AAAD) repair. The aim of this study is to analyze the incidence, indications and influence in-hospital outcomes of AAAD repair requiring concomitant CABG in a high-volume single-center experience. Retrospective study of all consecutive AAAD patients. Those who underwent concomitant CABG were identified. Preoperative, intraoperative, postoperative and follow-up data were collected and analyzed. Between January 1, 2010 and December 31, 2016, 382 patients underwent emergency surgery for AAAD. Forty-one (10.7%) underwent concomitant CABG. In this group, mean age was 64 ± 14 years, 32 were male (78%). Indication for CABG was coronary dissection in 28 patients (68.3%), post-cardiopulmonary bypass (CPB) right heart failure in 7 (17.1%), post CPB left heart failure in (7.3%) and native coronary pathology in 3 (7.3%). In 33 (80.5%) one graft was needed, in 7 (17%) two were performed and in 1 patient (2.4%) 3 were necessary. The right coronary artery (RCA) was the only revascularized vessel in 26 cases (63.4%), the left coronary artery (LCA) alone in 11 (26.8%), and both coronary systems in 4 (9.8%). In-hospital mortality was 51.2% (N = 21); eight (19.5%) patients had postoperative myocardial infarction (MI) and 11 (26.8%) had a major neurological event. Multivariable logistic regression identified concomitant CABG as a predictor of in-hospital mortality (Odds Ratio (OR) = 3.8115, 95% CI= 0.514–2.138, p = 0.001). In our study, concomitant CABG was performed in 10.7% of AAAD repair surgery and it was associated with high in-hospital mortality.

Objective Infected aortic aneurysms are highly lethal, and management is very demanding, requiring an early diagnosis. The aim of this study was to evaluate the diagnostic accuracy of positron emission tomography/computed tomography with 18F-fluorodeoxyglucose (PET/CT) and contrast enhanced CT (CE-CT) in patients with suspected infected aortic aneurysms. Methods PET/CT was performed in patients with clinically suspected infected aortic aneurysms, and additional CE-CT was performed if feasible. Diagnostic accuracy was assessed by two independent readers using a four point grading score for both imaging modalities. Maximum standardised uptake values (SUVmax) were calculated for quantitative measurements of metabolic activity in PET/CT. The reference standard was a combination of clinical presentation, laboratory findings, and imaging. Results Ten patients were included prospectively in the study, 24 retrospectively; 16 patients (47%) prior to the start of antimicrobial treatment and all 34 patients prior to any vascular intervention. Thirteen of the 34 patients had an infected aortic aneurysm (38%). Proven infected aortic aneurysms were all metabolically active on PET/CT with a median SUVmax of 6.6 (interquartile range 4.7–21.8). Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of PET/CT for the diagnosis of infected aortic aneurysm was 100%, 71%, 68%, 100%, and 82%, for reader 1 and 85%, 71%, 65%, 88%, and 77%, for reader 2. Respective values for CE-CT, performed in 20 patients (59%), were 63%, 75%, 63%, 75%, and 70%, for reader 1 and 88%, 50%, 54%, 86%, and 65%, for reader 2. Conclusion The diagnostic accuracy of PET/CT in the detection of infected aortic aneurysms (n = 13) is high, and higher than CE-CT. While PET/CT demonstrates an excellent sensitivity, its specificity is hampered because of false positive findings.

OBJECTIVES Extracorporeal membrane oxygenation (ECMO) is a resource-intensive, highly specialized and expensive therapy that is often reserved for high-volume centres. In recent years, we established an inter-hospital ECMO transfer programme that enables ECMO implants in peripheral hospitals. During the pandemic, the programme was expanded to include ECMO support in selected critically ill patients with coronavirus disease 2019 (COVID-19). METHODS This retrospective single-centre study reports the technical details and challenges encountered during our initial experience with ECMO implants in peripheral hospitals for patients with COVID-19. RESULTS During March and April 2020, our team at the University Hospital of Zurich performed 3 out-of-centre ECMO implants at different peripheral hospitals. The implants were performed without any complications. The patients were transported by ambulance or helicopter. Good preparation and selection of the required supplies are the keys to success. The implant should be performed by a well-trained, seasoned ECMO team, because options are limited in most peripheral hospitals. CONCLUSIONS Out-of-centre ECMO implants in well-selected patients with COVID-19 is feasible and safe if a well-established organization is available and if the implantation is done by an experienced and regularly trained team., Per the current World Health Organization (WHO) figures of 17 April 2000, the new severe acute respiratory syndrome coronavirus 2 has infected >2 million people worldwide with, to date, 139 378 deaths.

Hemoadsorption was used in a 59-year-old patient with an acute type A aortic dissection, who was on rivaroxaban and dual antiplatelet therapy with clopidogrel and acetylsalicylic acid. Our aim was to expeditiously remove rivaroxaban preoperatively. After 8 h of hemoadsorption, the rivaroxaban blood plasma concentration (RBPC) did not decrease below 42.1 μg/l. Intraoperatively, hemoadsorption was repeated during extracorporeal circulation. Sixteen hours after surgery and a total of 13 h of hemoadsorption, the RBPC was 40.1 μg/l. Thereafter, the RBPC spontaneously decreased to 24.7 μg/l within 14 h. In our patient, hemoadsorption may have enhanced rivaroxaban removal at higher RBPC (cutoff value 40–50 μg/l). At lower RBPC, the removal of rivaroxaban may depend solely on the natural drug elimination process. The evolution of the RBPC under hemoadsorption in vivo warrants a thorough investigation. Further clinical studies are required to assess the effectiveness and limitations of hemoadsorption to preclude a fatal bleeding event in patients with rivaroxaban in need of major emergency surgery.

BACKGROUND: The current coronavirus disease 2019 (COVID-19) pandemic has a huge impact on society and the economy and represents one of the biggest challenges for healthcare systems all over the world. Reports from healthcare institutions in different countries show a variety of crisis exit strategies. METHODS: The following is a review and update of the situation and crisis management in Zurich and Switzerland with a special focus on the impact on the cardiac surgery program and extracorporeal membrane oxygenation (ECMO)-therapy in COVID-19. RESULTS: Regional and national measures had avoided the collapse of the health system in Switzerland. There was a reduction of over 50% of the surgical and transcatheter caseload during the first wave of the pandemic. Twenty-three ECMO devices, 150 oxygenators, and more than 300 different cannulas were at our disposal. Between March and May 2020, nine COVID-19 patients were treated by us with ECMO-therapy. Three patients were transported by us from distant institutions. Median age at ECMO implantation was 59 years. Two patients died on support. CONCLUSIONS: Measures to prevent a collapse of the healthcare system were effective. Our local ECMO-Program on the ongoing COVID-19 pandemic has proven to be a useful tool to control mortality and organ failure in critically ill patients.

The current COVID-19 pandemic has a huge impact on society and economy and represents one of the biggest challenges for healthcare systems all over the world. Reports from health-care-institutions in different countries show a variety of crisis exit strategies. Although experiences in handling of the pandemic have accumulated over the last 7 months, it is clear that measures to prevent a collapse of the health-care-systems have to be adapted to local political and socioeconomic structures. The aim of this review is to give insight in crisis exit strategies in Switzerland, highlighting the role and impact of COVID-19 in the field of cardiac surgery.

COVID-19 hit hard worldwide. There has been an impact on global activity of cardiac surgery. Spain has been one of the hardest hit countries with one of the highest per population incidences and death. Cardiac surgical activity has suffered a negative impact all over the country. The following is an overview of the epidemiology and impact on resources, the caseload and surgical societal implemented recommendations, the description of the ECMO activity and nosocomial transmission among healthcare workers.

BACKGROUND: COVID-19 hit hard worldwide. There has been an impact on global activity of cardiac surgery. Spain has been one of the hardest hit countries with one of the highest per population incidences and death. METHODS: The following is an overview of the epidemiology and impact on resources, the caseload and surgical societal implemented recommendations, the description of the ECMO activity and nosocomial transmission among healthcare workers. RESULTS: There was a reduction of 5-6 times of the regular caseload. As of July 17, 160 ECMO implants were performed. In a 13-center survey, at least 1 staff surgeon had SARS-COV-19 infection. CONCLUSION: Cardiac surgical activity has suffered a negative impact all over the country.

Fungal osteomyelitis is uncommon after cardiac surgery. A case of Candida albicans and S. epidermidis osteomyelitis with device infection after implantation of a left ventricular assist device in a male patient is presented. After confirmation with microbiological and radiological examinations, debridement was performed. Surgical specimens grew C. albicans and S. epidermidis. Fluconazole, daptomycin and negative pressure wound therapy failed to achieve healing. Total sternectomy and pectoralis muscle flap reconstruction were performed. There was no recurrent infection for C. albicans on a prolonged antifungal regime. The combination of antifungal therapy and aggressive surgical debridement may be useful to control fungal osteomyelitis.