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BACKGROUND: The safety and efficacy of leadless pacemakers (LP) in transcatheter aortic valve implant (TAVI) patients is not well known due to paucity of data. Herein, we compared outcomes between leadless pacemakers to traditional dual chamber pacemakers (DCP) following TAVI. METHODS: A single-center retrospective study was conducted, including a total of 27 patients with LP and 33 patients with DCP after TAVI between November 2013 and May 2021. We compared baseline demographics, pacemaker indications, complication rates, percent pacing, and ejection fractions. RESULTS: Leading indications for pacemaker implant were complete heart block (74% LP, 73% DCP) and high degree atrioventricular block (26% LP, 21% DCP). Twenty-two (82%) LP patients had devices implanted in the right ventricular septal-apex. Three (9%) DCP patients required rehospitalization for pocket related complications. Zero pacemaker-related mortality was observed in both groups. Frequency of ventricular pacing and ejection fraction was similar between LP and DCP groups. CONCLUSION: From this single-center retrospective study, LP implant was feasible following TAVI and was found to have comparable performance to DCPs. LPs may be a reasonable alternative in TAVI patients where single ventricular pacing is indicated. Larger studies are required to validate these findings.
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Estenosis de la Válvula Aórtica , Bloqueo Atrioventricular , Marcapaso Artificial , Reemplazo de la Válvula Aórtica Transcatéter , Humanos , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Estudios Retrospectivos , Estimulación Cardíaca Artificial/efectos adversos , Resultado del Tratamiento , Marcapaso Artificial/efectos adversos , Válvula Aórtica/cirugía , Estenosis de la Válvula Aórtica/cirugíaRESUMEN
Valve-in-valve transcatheter aortic valve replacement for degenerated surgical bioprosthesis is becoming a more common therapeutic option. Rapid-deployment valves are novel, have distinct structural differences from standard surgical valves, and are increasingly used in minimal-access surgery. We report the case of a 61-year-old man who developed severe stenosis of an Edwards INTUITY Elite rapid-deployment valve and who subsequently underwent successful valve-in-valve placement of a self-expanding transcatheter valve. To our knowledge, this is the first description of the technical aspects of and considerations for using the self-expanding transcatheter platform in the Edwards INTUITY Elite valve.
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Estenosis de la Válvula Aórtica , Bioprótesis , Implantación de Prótesis de Válvulas Cardíacas , Prótesis Valvulares Cardíacas , Reemplazo de la Válvula Aórtica Transcatéter , Válvula Aórtica/cirugía , Estenosis de la Válvula Aórtica/cirugía , Humanos , Masculino , Persona de Mediana Edad , Diseño de Prótesis , Resultado del TratamientoRESUMEN
Over the last two decades, the medical community witnessed an outstanding and accelerated development on minimally invasive therapies. The definition of what constitutes large bore access is subject to discussion, however within the field it is generally accepted to reflect a catheter diameter exceeding 8-French. We sought in this review to explore the evolution, characteristics and vascular compatibility of the current commercially available devices, analyze the devices along with access site-specific complications rates and finally review the present methods for percutaneous vascular closure.
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Cateterismo Cardíaco/instrumentación , Cateterismo Cardíaco/métodos , Catéteres Cardíacos , Procedimientos Endovasculares/métodos , Corazón Auxiliar , Humanos , Contrapulsador Intraaórtico , Procedimientos Quirúrgicos Mínimamente Invasivos/instrumentación , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Reemplazo de la Válvula Aórtica Transcatéter/métodos , Dispositivos de Cierre VascularRESUMEN
Interrupted aortic arch (IAA) is defined as a discontinuity of the aortic lumen from the aortic arch to the descending aorta. The incidence of this congenital malformation is three per million live births. It represents about 1.5% of congenital cardiac abnormalities. The classification system for IAA is divided into three distinct categories-type A: interruption of the lumen distal to the left subclavian artery, occurring in 43% cases; type B: interruption between the left carotid and left subclavian arteries, occurring in 53% cases (the most common); and type C: interruption between the innominate and left carotid, occurring in 4% cases. We describe the case of a 47-year-old woman who had a symptomatic type A IAA. A single-stage extra-anatomic bypass was performed between the left subclavian and the descending thoracic aorta using a 14 mm Dacron graft. The use of this approach is an option to solve this challenging clinical problem.
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Aorta Torácica/cirugía , Coartación Aórtica/cirugía , Implantación de Prótesis Vascular/métodos , Arteria Subclavia/cirugía , Aorta Torácica/anomalías , Aorta Torácica/diagnóstico por imagen , Coartación Aórtica/diagnóstico , Angiografía por Tomografía Computarizada , Femenino , Humanos , Imagenología Tridimensional , Persona de Mediana Edad , Diseño de Prótesis , Arteria Subclavia/anomalías , Arteria Subclavia/diagnóstico por imagenRESUMEN
OBJECTIVE: Carotid body tumors (CBTs) are rare neoplasms. Complete surgical resection is the curative therapy and is considered the therapeutic gold standard. This study compared the retrocarotid dissection (RCD) technique with the standard caudocranial dissection (SCCD) technique in operative time, blood loss, vascular or nerve injuries, and hospital stay. METHODS: A retrospective review was conducted of patients with CBTs who underwent surgical treatment with the RCD technique at the National Institute of Medical Sciences and Nutrition "Salvador Zubirán" in Mexico City from July 2007 to January 2013. This cohort was compared with an historical cohort treated with standard SCCD from 1995 to 2007 at the same institution. RESULTS: A total of 68 procedures (41 SCCD, 27 RCD) were performed in 68 patients (91% women) with a mean age of 54 years (standard deviation [SD], 15 years). According to the Shamblin classification, 6 CBTs were type I (9%), 35 were type II (51%), and 27 were type III (40%). Comparative analysis identified mean blood loss of 480 mL (SD, 380 mL) in the RCD group and 690 mL (SD, 680 mL) for the SCCD cohort (P < .31). The mean procedural time was 172 minutes (SD, 60 minutes) for the RCD group and 260 minutes (SD, 100 minutes) for the SCCD group (P < .001). Hospital stay was significantly shorter for the RCD group with an average of 5 days (SD, 2 days) compared with 9 days (SD, 6 days) for the SCCD cohort (P < .0001). Cranial nerve deficit occurred in 17 patients, consisting of six transient nerve palsies in the RCD cohort and 11 in the SCCD group. Postoperative cerebrovascular accidents occurred in three patients in the SCCD cohort, with none observed in the RCD group. This translates into a rate of 22% of postoperative neurologic complications for the RCD cohort and 34% in the SCCD group (P < .08). Significant differences in intraoperative vascular injuries were not observed. CONCLUSIONS: The RCD technique is a safe and viable option for the surgical resection of CBTs. In our experience, this approach was associated with a significant decrease in procedural time and hospital stay.
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Tumor del Cuerpo Carotídeo/cirugía , Pérdida de Sangre Quirúrgica , Cuerpo Carotídeo , Femenino , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Tempo Operativo , Complicaciones Posoperatorias , Estudios Retrospectivos , Accidente Cerebrovascular/etiologíaRESUMEN
OBJECTIVE: Epigallocatechin-3-gallate (EGCG), a catechin gallate ester, is the major component of green tea and has been demonstrated to inhibit tumor growth as well as inhibit smooth muscle cell migration. We evaluated the effect of the phytochemicals resveratrol, allicin, sulforaphane (SFN), and EGCG on intimal hyperplasia in the carotid artery injury model. METHODS: Intimal hyperplasia was induced in carotid arteries of adult Sprague-Dawley rats with a wire injury. Experimental animals received intraperitoneal injections of one of the four phytochemicals daily beginning 1 day prior to surgery and continued for up to 4 weeks. Control animals were administered saline. Carotid specimens were harvested at 2 weeks and subjected to quantitative image analysis. In addition, EGCG specimens were analyzed for cell proliferation, immunohistochemistry, and Western blot analysis. RESULTS: Quantitative image analysis showed significant phytochemical suppression of intimal hyperplasia at 2 and 4 weeks postoperatively with EGCG (62% decrease in intimal area). Significant decreases were also noted at 2 weeks for SFN (56%) and resveratrol (44%), whereas the decrease with allicin (24%) was not significant. Quantification of intimal hyperplasia by intima:media ratio showed similar results. Cell proliferation assay of specimens demonstrated suppression by EGCG. Immunohistochemical staining of EGCG-treated specimens showed extracellular signal-regulated kinase (ERK) suppression but not of the c-jun N-terminal kinase or p38 pathways. Western blot analysis confirmed reduced ERK activation in arteries treated with EGCG. CONCLUSIONS: Intraperitoneal injection of the phytochemicals EGCG, SFN, resveratrol, and allicin have suppressive effects on the development of intimal hyperplasia in the carotid artery injury model, with maximal effect due to EGCG. The mechanism of EGCG action may be due to inhibition of ERK activation. EGCG may affect a common pathway underlying either neoplastic cellular growth or vascular smooth muscle cellular proliferation.
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Fármacos Cardiovasculares/farmacología , Traumatismos de las Arterias Carótidas/tratamiento farmacológico , Arteria Carótida Común/efectos de los fármacos , Catequina/análogos & derivados , Neointima , Animales , Fármacos Cardiovasculares/administración & dosificación , Traumatismos de las Arterias Carótidas/enzimología , Traumatismos de las Arterias Carótidas/patología , Arteria Carótida Común/enzimología , Arteria Carótida Común/patología , Grosor Intima-Media Carotídeo , Catequina/administración & dosificación , Catequina/farmacología , Proliferación Celular/efectos de los fármacos , Modelos Animales de Enfermedad , Disulfuros , Activación Enzimática , Quinasas MAP Reguladas por Señal Extracelular/antagonistas & inhibidores , Quinasas MAP Reguladas por Señal Extracelular/metabolismo , Hiperplasia , Inyecciones Intraperitoneales , Isotiocianatos/farmacología , Masculino , Inhibidores de Proteínas Quinasas/farmacología , Ratas , Ratas Sprague-Dawley , Resveratrol , Estilbenos/farmacología , Ácidos Sulfínicos/farmacología , Sulfóxidos , Factores de TiempoRESUMEN
The frozen elephant trunk (FET) technique for total aortic arch replacement extends repair into the proximal portion of the descending thoracic aorta. Several techniques and modifications of total arch replacement have been described in the literature, and many of these iterations are related to facilitating the distal anastomosis while preserving flow to the left subclavian artery (LSCA), as well as maintaining posterior circulation of the brain via the vertebral artery, by reducing the circulatory arrest time during reconstruction. Because of the LSCA's posterior and deep anatomic location in the chest, particularly in obese patients, this revascularization is often challenging; additional concerns regarding LSCA revascularization include patients with large aortic arch aneurysms, those with dissected or calcified arteries, and reoperation. A careful plan for reconstruction is necessary. Whether revascularization is performed preoperative, intraoperative, or postoperatively, every effort should be made to include the left subclavian artery as part of the operational approach. Revascularization techniques include reimplantation as part of the island patch or direct anastomosis, stenting, bypass, transposition or a hybrid approach. The importance of maintaining circulation of the LSCA cannot be overstated. Preserving flow to the spinal cord via collaterals minimizes the risk of cord injury during FET procedure. In patients with a patent left internal mammary artery bypass, left arm arteriovenous fistula for hemodialysis, dominant circulation, or direct aortic origin of the left vertebral artery, revascularization is necessary as well. In the case of initial sacrifice, arm claudication or steal syndrome usually dictates delayed extra-anatomic revascularization in the postoperative period.
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Thoracic endovascular aneurysm repair has been well described in the literature as a treatment for a wide range of thoracic aortic pathologies. As with any intervention, there remains a risk of an unfavorable outcome, including endoleak, a term used to describe unexpected blood flow between the stent-graft and the wall of the excluded aneurysm. Endoleaks cause pressurized enlargement of the aneurysmal sac and may lead to catastrophic outcomes such as rupture and death. Type 1b endoleak represents a distal landing zone that is compromised by retrograde blood flow. Moreover, there is a lack of data on type 1b endoleaks and its management options. With the increase in emerging endovascular techniques and technologies, endoleaks are more frequent. However, the management of endoleaks is not standardized among different centers. The purpose of this article is to provide an overview of type 1b endoleaks after thoracic endovascular aneurysm repair, current management options, and our experience.
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Aneurisma de la Aorta Abdominal , Implantación de Prótesis Vascular , Procedimientos Endovasculares , Humanos , Aneurisma de la Aorta Abdominal/cirugía , Prótesis Vascular/efectos adversos , Implantación de Prótesis Vascular/efectos adversos , Endofuga/diagnóstico por imagen , Endofuga/etiología , Endofuga/cirugía , Reparación Endovascular de Aneurismas , Procedimientos Endovasculares/efectos adversos , Factores de Riesgo , Stents/efectos adversos , Resultado del TratamientoRESUMEN
Transcatheter aortic valve replacement is a well-established procedure for older patients with symptomatic, severe aortic stenosis. However, data are lacking on its durability and long-term complications, particularly in young patients and patients treated for aortic valve regurgitation. This article describes the case of a 27-year-old woman with complex congenital cardiovascular disease who, after 4 previous aortic valve replacement procedures, presented with structural deterioration of her most recent replacement valve, which had been placed by transcatheter aortic valve replacement inside a failed aortic root homograft 6 years earlier. After the patient had undergone this transcatheter aortic valve replacement procedure to treat aortic valve regurgitation related to her degenerated aortic root homograft, she became pregnant and successfully carried her high-risk pregnancy to term. However, the replacement valve deteriorated during the late stages of pregnancy, resulting in substantial hemodynamic changes between the first trimester and the postpartum period. To avoid repeat sternotomy, a redo transcatheter valve-in-valve replacement procedure procedure was performed through the right carotid artery. Because the patient wanted to have more children and therefore avoid anticoagulation, a SAPIEN 3 transcatheter valve (Edwards Lifesciences) was placed as a bridge to a future, more-durable aortic root replacement. The result in this case suggests that in patients with complex adult congenital pathology, transcatheter aortic valve replacement can be used as a temporizing bridge to subsequent, definitive aortic valve repair.
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Insuficiencia de la Válvula Aórtica , Estenosis de la Válvula Aórtica , Implantación de Prótesis de Válvulas Cardíacas , Prótesis Valvulares Cardíacas , Reemplazo de la Válvula Aórtica Transcatéter , Niño , Adulto , Femenino , Humanos , Válvula Aórtica/diagnóstico por imagen , Válvula Aórtica/cirugía , Implantación de Prótesis de Válvulas Cardíacas/métodos , Aorta Torácica/cirugía , Estenosis de la Válvula Aórtica/diagnóstico , Estenosis de la Válvula Aórtica/cirugía , Resultado del Tratamiento , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Prótesis Valvulares Cardíacas/efectos adversos , Insuficiencia de la Válvula Aórtica/diagnóstico , Insuficiencia de la Válvula Aórtica/etiología , Insuficiencia de la Válvula Aórtica/cirugía , Aloinjertos/cirugía , Diseño de PrótesisRESUMEN
BACKGROUND: Without surgical repair, acute type A aortic dissection (TAAD) is usually fatal. However, some patients survive without an early operation and progress to the chronic phase. Contemporary outcomes of primary surgical repair of chronic TAAD are unclear, so we evaluated them at our single-practice service. METHODS: During 1990 to 2021, 205 patients underwent repair of TAAD in the chronic phase (>60 days after onset). The 2 relevant DeBakey classifications were nearly equally represented: type I, 52% (n = 107), and type II, 48% (n = 98). The median interval between dissection onset and repair was 7 months (interquartile range, 3-25 months). Kaplan-Meier and competing-risk analyses provided time-dependent outcomes. RESULTS: At the time of intervention, most patients (40%) had chronic symptoms. Type I patients were younger than type II patients; however, comorbidities were similar. Most patients (n = 183 [87%]) underwent hemiarch or total arch repair, although total arch replacement was more common in type I dissection (P < .001). There were 15 operative deaths (7%), and 7 strokes (3%) persisted to the time of death or discharge. No patient had persistent paraplegia. Median follow-up was 5 years (interquartile range, 2-11 years). The 5-year reoperation-free survival was 61% (95% CI, 54%-68%), and the incidence of reoperation was 3% (95% CI, 0.4%-5%). Patients with type I and type II dissection did not differ significantly in survival (P = .2). CONCLUSIONS: Durable repair can be achieved with reasonable operative risk. Treatment is individualized and is associated with low rates of persistent neurologic complications. Despite differing operative approaches by DeBakey type, early and late outcomes were similar.
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Aneurisma de la Aorta Torácica , Disección Aórtica , Implantación de Prótesis Vascular , Humanos , Aneurisma de la Aorta Torácica/diagnóstico , Implantación de Prótesis Vascular/efectos adversos , Resultado del Tratamiento , Estimación de Kaplan-Meier , Estudios Retrospectivos , Disección Aórtica/cirugía , Aorta Torácica/cirugía , Factores de Riesgo , Complicaciones Posoperatorias/etiologíaRESUMEN
Spinal cord deficit (SCD) is a feared complication after thoracoabdominal aortic aneurysm repair. Vigilant management throughout the perioperative period is necessary to reduce the risk of SCD. Measures for preventing SCD during the intraoperative period include preoperative optimization and recognizing patients at a higher risk of SCD. In this manuscript, we discuss intraoperative adjuncts including utilization of cerebrospinal fluid drainage, left heart bypass, mild hypothermia, selective reimplantation of intercostal and lumbar arteries, and renal and visceral vessel perfusion. From the operative to the postoperative period, careful attention to avoiding hypotension and anemia is important. If SCD is recognized early, therapeutic intervention may be implemented to mitigate injury.
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OBJECTIVE: We assessed associations between outcomes after open thoracoabdominal aortic aneurysm (TAAA) repair and preoperative airflow limitation stratified by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) spirometric classification of chronic obstructive pulmonary disease (COPD) severity. METHODS: Among 2368 open elective TAAA repairs in patients with spirometric data, 1735 patients had COPD and 633 did not. Those with COPD were stratified by preoperative respiratory dysfunction as GOLD 1 (forced expiratory volume in the first second of expiration [FEV1] ≥80% of predicted; n = 228), GOLD 2 (50% ≤ FEV1 < 80% of predicted; n = 1215), GOLD 3 (30% ≤ FEV1 < 50% of predicted; n = 260), or GOLD 4 (FEV1 < 30% of predicted; n = 32). Early outcomes included operative mortality and adverse events (operative death or persistent stroke, spinal cord deficit, or renal failure requiring dialysis); associations of outcomes were determined using logistic regression models. Kaplan-Meier analysis compared late survival by the log-rank test. RESULTS: Pulmonary complications occurred in 38.4% of patients with COPD versus 30.0% without COPD (P < .001). Operative mortality and adverse events were more frequent in patients with COPD than without COPD (7.9% vs 3.8% [P < .001] and 14.9% vs 9.8% [P = .001], respectively). Worsening GOLD severity was independently associated with operative death and adverse event. Survival was poorer in patients with COPD than in those without (61.9% ± 1.2% vs 73.6% ± 1.8% at 5 years; P < .001), particularly in patients with increasing GOLD severity (68.7% ± 3.2% vs 63.7% ± 1.4% vs 51.4% ± 3.2% vs 31.3% ± 8.2% at 5 years; P < .001). CONCLUSIONS: Patients with COPD are at elevated risk for operative death and adverse events. Staging by GOLD severity aids preoperative risk stratification. Patients with airflow limitations may benefit from optimization before TAAA repair.
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OBJECTIVE: Sarcopenia (core muscle loss) has been used as a surrogate marker of frailty. We investigated whether sarcopenia would adversely affect survival after thoracoabdominal aortic aneurysm repair. METHODS: We retrospectively reviewed prospectively collected data from patients aged 60 years or older who underwent thoracoabdominal aortic aneurysm repairs from 2006 to 2016. Imaging was reviewed by 2 radiologists blinded to clinical outcomes. The total psoas index was derived from total psoas muscle cross-sectional area (cm2) at the mid-L4 level, normalized for height (m2). Patients were divided by sex-specific total psoas index values into sarcopenia (lower third) and nonsarcopenia (upper two-thirds) groups. Multivariable modeling identified operative mortality and spinal cord injury predictors. Unadjusted and adjusted survival curves were analyzed. RESULTS: Of 392 patients identified, those with sarcopenia (n = 131) were older than nonsarcopenic patients (n = 261) (70.0 years vs 68.0 years; P = .02) and more frequently presented with aortic rupture or required urgent/emergency operations. Operative mortality was comparable (sarcopenia 13.7% vs nonsarcopenia 10.0%; P = .3); sarcopenia was not associated with operative mortality in the multivariable model (odds ratio, 1.40; 95% confidence interval, 0.73-2.77; P = .3). Sarcopenic patients experienced more frequent delayed (13.0% vs 4.6%; P = .005) and persistent (10.7% vs 3.4%; P = .008) paraplegia. Sarcopenia independently predicted delayed paraplegia (odds ratio, 3.17; 95% confidence interval, 1.42-7.08; P = .005) and persistent paraplegia (odds ratio, 3.29; 95% confidence interval, 1.33-8.13; P = .01) in the multivariable model. Adjusted for preoperative/operative covariates, midterm survival was similar for sarcopenic and nonsarcopenic patients (P = .3). CONCLUSIONS: Sarcopenia did not influence early mortality or midterm survival after thoracoabdominal aortic aneurysm repair but was associated with greater risk for delayed and persistent paraplegia.
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Aneurisma de la Aorta Abdominal , Aneurisma de la Aorta Torácica , Aneurisma de la Aorta Toracoabdominal , Implantación de Prótesis Vascular , Sarcopenia , Masculino , Femenino , Humanos , Persona de Mediana Edad , Resultado del Tratamiento , Factores de Riesgo , Estudios Retrospectivos , Sarcopenia/complicaciones , Sarcopenia/diagnóstico por imagen , Médula Espinal , Paraplejía , Aneurisma de la Aorta Torácica/complicaciones , Aneurisma de la Aorta Torácica/diagnóstico por imagen , Aneurisma de la Aorta Torácica/cirugía , Aneurisma de la Aorta Abdominal/cirugía , Medición de RiesgoRESUMEN
Surgical aortic repair has progressed from aneurysm ligation to homografts to Dacron grafts to totally endovascular interventions. These fields will continue to evolve, and new endovascular technology will be used in virtually every part of the aorta, eventually dominating this field of surgery. However, as surgeons, we must be cautious and not let go of our open-surgery skills, as they will always be the ultimate bailout solution.
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OBJECTIVE: Mycotic aortic aneurysm and its associated complications are often catastrophic. In this study, we examined the early and late outcomes of surgical repair of mycotic aortic aneurysm at our center over the last 3 decades. METHODS: We retrospectively reviewed our prospectively maintained aortic surgery database with supplemental adjudication of medical records. Aortic infection was confirmed through clinical, radiological, intraoperative, pathological, and treatment evidence. RESULTS: Seventy-five patients (median age, 68 years; interquartile range, 62-74) who underwent surgical repair of a mycotic aortic aneurysm between 1992 and 2021 were included. Almost all patients (n = 72; 96%) presented with symptoms, including 26 patients (35%) with rupture, and many underwent urgent or emergency repair (n = 64; 85%). Sixty-one patients underwent open repair, and 14 patients underwent hybrid or endovascular repair. Infection-specific adjunct techniques included rifampin-soaked grafts (n = 16), omental pedicle flaps (n = 21), and antibiotic irrigation catheters (n = 8). There were 15 early deaths (20%), including 10 of the 26 patients (38%) who presented with rupture; however, persistent stroke, paraplegia or paraparesis, and renal failure necessitating dialysis were uncommon (each <5%). Almost all early survivors (52/60; 87%) were discharged with long-term antibiotic therapy. Estimated survival at 2, 6, and 10 years was 55.7% ± 5.8%, 39.0% ± 5.7%, and 26.9% ± 5.5%, respectively. CONCLUSIONS: A substantial proportion of patients with mycotic aortic aneurysm present with rupture and generally require urgent or emergency repair. Operative mortality and complications are common, especially for patients who present with rupture, and late survival is poor.
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The treatment of complex aortic arch disease continues to be among the most demanding cardiovascular operations, with a considerable risk of death and stroke. Since January 1990, our single-practice service has performed over 3000 repairs of the aortic arch. Our aim was to describe the progression of our technical approach to open aortic arch repair. Our center's surgical technique has evolved considerably over the last three decades. When it comes to initial arterial cannulation, we have shifted away from femoral artery cannulation to innominate and axillary artery cannulation. During difficult repairs, this transition has made it easier to use antegrade cerebral perfusion rather than retrograde cerebral perfusion, which was commonly used in the early days. Brain protection tactics during open aortic arch procedures have evolved from profound (≤14 °C) hypothermia during circulatory arrest to moderate (22-24 °C) hypothermia. Aortic arch repair is performed through a median sternotomy and may treat acute aortic dissection, chronic aortic dissection, or degenerative aneurysm. Reoperative repair - that necessitating redo sternotomy - is common in patients undergoing aortic arch repair. The majority of repairs will include varying portions of the ascending aorta and may involve the aortic valve or the aortic root. In some patients, repair may extend into the proximal descending thoracic aorta; this includes elephant trunk, frozen elephant trunk, and antegrade hybrid approaches.
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Aneurisma de la Aorta Torácica , Enfermedades de la Aorta , Disección Aórtica , Implantación de Prótesis Vascular , Hipotermia , Disección Aórtica/cirugía , Aorta/cirugía , Aorta Torácica/diagnóstico por imagen , Aorta Torácica/cirugía , Aneurisma de la Aorta Torácica/diagnóstico por imagen , Aneurisma de la Aorta Torácica/cirugía , Enfermedades de la Aorta/diagnóstico por imagen , Enfermedades de la Aorta/cirugía , Implantación de Prótesis Vascular/efectos adversos , Implantación de Prótesis Vascular/métodos , Humanos , Hipotermia/cirugía , Perfusión/efectos adversos , Perfusión/métodos , Resultado del TratamientoRESUMEN
Most operations for dissection of the thoracoabdominal aorta take place in the chronic phase of the disease, because the acutely dissected distal aorta is almost always initially treated non-surgically with aggressive pharmacological anti-impulse therapy. Identifying patients who are no longer responding to medical treatment is the first step in preventing further disease progression and rupture. Symptomatic aneurysms should be promptly repaired. Asymptomatic patients are followed until significant aortic dilation occurs and reaches a threshold of intervention: current guidelines endorse repair once a diameter of 5.5 cm is reached. In patients with heritable thoracic aortic disease (such as Marfan Syndrome), the threshold of intervention is often lowered. Aortic replacement typically centers on the dilatated segment. For all extents of repair, we use passive mild hypothermia, sequential aortic cross-clamping, aggressive reimplantation of intercostal and lumbar arteries, and cold renal perfusion whenever possible. For Crawford extents I and II thoracoabdominal aneurysm repair, we routinely use cerebrospinal fluid drainage, left heart bypass, and selective visceral perfusion. A four-branched graft approach to thoracoabdominal aortic aneurysm repair is frequently used in patients with chronic aortic dissection; this approach facilitates visceral artery perfusion during repair, expedites the distal anastomosis, and prevents subsequent visceral patch aneurysms. Lifelong imaging surveillance is necessary, because the distal aorta often continues to expand; residual aortic dissection commonly remains after repair and may necessitate further repair.
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Disección Aórtica/cirugía , Guías de Práctica Clínica como Asunto , Procedimientos Quirúrgicos Vasculares/normas , Aneurisma de la Aorta Torácica/cirugía , HumanosRESUMEN
Open surgical repair persists as the gold-standard operation for thoracoabdominal aortic aneurysm; however, endovascular repair has become commonplace. Technical considerations in thoracoabdominal aortic aneurysm treatment are particularly complex, insofar as it involves critical branching arteries feeding the visceral organs. Newer, low-profile devices make total endovascular thoracoabdominal aortic aneurysm repair more feasible and, thus, appealing. For younger and low-risk patients, the choice between open and endovascular therapy remains controversial. Despite the advantages of a minimally invasive procedure, data suggest that endovascular aortic repair incurs a greater risk of spinal cord deficit, and the durability of endovascular aortic repair remains unclear. It is difficult to compare outcomes between endovascular and open thoracoabdominal aortic aneurysm repair, primarily because of the current investigational status of endovascular devices, the variety of approaches to endovascular repair, differing patient populations, lack of prospective randomized studies, and minimal medium- and long-tern follow-up data on endovascular repair. When deciding between open and endovascular approaches, one should consider which is more suitable for each patient. Older patients generally benefit from a less invasive approach. Open repair should be considered for young patients and those with heritable thoracic aortic disease. Infection and fistulae are best treated by open repair, although endovascular intervention as a lifesaving bridge to definitive repair has evolved to become a critical component of initial treatment. It is crucial to have technical expertise in both open and endovascular procedures to provide the best aortic repair for the patient. This may require dedicated aortic programs at tertiary institutions.
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Aneurisma de la Aorta Torácica , Implantación de Prótesis Vascular , Procedimientos Endovasculares , Aneurisma de la Aorta Torácica/diagnóstico por imagen , Aneurisma de la Aorta Torácica/cirugía , Prótesis Vascular , Implantación de Prótesis Vascular/efectos adversos , Procedimientos Endovasculares/efectos adversos , Humanos , Complicaciones Posoperatorias/cirugía , Estudios Retrospectivos , Stents , Resultado del TratamientoRESUMEN
Thoracic endovascular aortic repair (TEVAR) is a less invasive method for treating thoracic and some thoracoabdominal aortic aneurysms, dissections of the thoracic aorta and blunt traumatic aortic injury, compared with conventional open surgery. Maximizing the likelihood of a successful outcome requires diligent multidisciplinary (surgical, critical care, nursing, pharmacy, nutrition and physical therapy) perioperative care. In this article, we discuss fundamentals for managing patients after endovascular aortic aneurysm repair. These principles focus on the transition between the operating room and the intensive care unit, prevention and management of spinal cord deficits (SCD), and vital neurological, respiratory, cardiovascular, renal, gastrointestinal and hematological concerns. The better the care team understands the expected postoperative course, the earlier that deviations can be recognized and the more likely that successful rescue can be achieved to reduce the incidence and severity of adverse outcomes. Achieving optimal results after TEVAR requires attention to detail across the preoperative, intraoperative and postoperative phases of care.
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Thoracoabdominal aortic aneurysm repair is technically demanding for the surgeon and physiologically demanding on the patient. As such, it requires diligent multidisciplinary perioperative care to maximize the likelihood of a successful outcome. In this article, we discuss key principles for managing patients after open thoracoabdominal aortic aneurysm repair, which we have learned over the course of performing more than 3500 of such procedures. These principles address patient handoff between the operating room and Intensive Care Unit, resuscitation, prevention and management of spinal cord deficits, and important neurological, respiratory, cardiovascular, renal, gastrointestinal, and hematological considerations. Understanding the expected postoperative course allows for earlier recognition of deviations from that course and increases the likelihood of successful rescue of patients from adverse outcomes. Achieving positive outcomes after thoracoabdominal aortic aneurysm repair requires attention to detail across the perioperative, intraoperative, and postoperative phases of care.