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1.
J Cardiovasc Imaging ; 32(1): 29, 2024 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-39238055

RESUMEN

BACKGROUND: Aortic regurgitation (AR) has an important impact on myocardial mechanics and recent studies have proved the value of global longitudinal strain (GLS) in the assessment of its severity and prognosis. Our purpose was to assess if the direct impact of the regurgitant jet on the myocardial wall could affect regional longitudinal strain. METHODS: Eighty patients with chronic moderate/severe AR were retrospectively studied. Patients were considered to have a jet-related longitudinal strain reduction when the myocardial segments directly impacted by the jet had their longitudinal strain reduced by at least 30% compared to nonaffected segments. AR severity, left ventricular (LV) size and function were compared according to the presence/absence of this regional pattern. For those who underwent surgery, postoperative regional and global LV function was also analyzed. RESULTS: A pattern of regional longitudinal strain impairment was identified in 43% of patients, with a regional reduction (in median) of 10 percentage points in absolute strain values in the segments impacted by the jet, compared to nonaffected segments. In the subgroup who underwent surgery, this pattern became attenuated after surgery. Patients with regional longitudinal strain impairment were less likely to improve GLS after surgery (10% vs. 38% improved GLS by at least 2.5%, P = 0.049). CONCLUSIONS: To our knowledge, this study identifies for the first time, a link between the location of the impact of the regurgitant jet in AR and regional longitudinal strain impairment. The presence of this regional pattern might be associated with worse postoperative LV recovery.

2.
Diagn Interv Imaging ; 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39271367

RESUMEN

PURPOSE: The purpose of this study was to evaluate the performance of four-dimensional (4D) flow cardiac MRI in quantifying aortic flow in patients with bicuspid aortic valve (BAV). MATERIALS AND METHODS: Patients with BAV who underwent transthoracic echocardiography (TTE) and 4D flow cardiac MRI were prospectively included. Aortic flow was quantified using two-dimensional phase contrast velocimetry at the sinotubular junction and in the ascending aorta and using 4D flow in the regurgitant jet, in the left ventricular outflow tract, at the aortic annulus, the sinotubular junction, and the ascending aorta, with or without anatomical tracking. Flow quantification was compared with ventricular volumes, pulmonary flow using Pearson correlation test, bias and limits of agreement (LOA) using Bland Altman method, and with multiparametric transthoracic echocardiography quantification using weighted kappa test. RESULTS: Eighty-eight patients (63 men, 25 women) with a mean age of 50.5 ± 14.8 (standard deviation) years (age range: 20.8-78.3) were included. Changes in flow with or without tracking were modest (< 5 mL). The best correlation was obtained at the aortic annulus for forward volume (r = 0.84; LOA [-28.4; 25.3] mL) and at the regurgitant jet and sinotubular junction for regurgitant volume (r = 0.68; LOA [-27.8; 33.8] and r = 0.69; LOA [-28.6; 24.2] mL). A combined approach for regurgitant fraction and net volume calculations using forward volume measured at ANN and regurgitant volume at sinotubular junction performed better than each level taken separately (r = 0.90; LOA [-20.7; 10.0] mL and r = 0.48, LOA [-33.8; 33.4] %). The agreement between transthoracic echocardiography and 4D flow cardiac MRI for aortic regurgitation grading was poor (kappa, 0.13 to 0.42). CONCLUSION: In patients with BAV, aortic flow quantification by 4D flow cardiac MRI is the most accurate at the annulus for the forward volume, and at the sinotubular junction or directly in the jet for the regurgitant volume.

3.
Heart ; 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39117383

RESUMEN

In an era of rapidly expanding use of transcatheter aortic valve implantation (TAVI), the management of patients with bicuspid aortic valve (BAV) disease is far less well established than in those with trileaflet anatomy. Results of isolated surgical aortic valve replacement are excellent in suitable patients, and surgery also allows treatment of concomitant pathology of the aortic root and ascending aorta that is frequently encountered in this cohort. Conversely, TAVI provides an excellent alternative in older patients who may be unsuitable for surgery, although outcomes in BAV disease have only been reported in relatively small non-randomised series. Here, we discuss the pertinent literature on this topic and outline contemporary interventional treatment options in this challenging setting.

4.
Cureus ; 16(6): e63107, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39070339

RESUMEN

Infective endocarditis (IE) is a serious cardiovascular condition with the potential to lead to severe valvular regurgitation. We present a case of a 65-year-old male who presented with a fever and was diagnosed with IE through point-of-care ultrasound (POCUS). The patient's condition subsequently led to severe aortic regurgitation. Timely diagnosis facilitated by POCUS played a crucial role in the management of this case. The patient underwent successful timely surgical intervention to prevent further infective embolism and heart failure due to severe acute aortic regurgitation. This case underscores the pivotal role of POCUS in the early diagnosis and multidisciplinary management of cardiology diseases, highlighting its importance in delivering optimal patient care.

5.
Cureus ; 16(6): e63415, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39077254

RESUMEN

Aortitis is a general term that describes inflammation of the aorta. In most cases, this inflammation is caused by an autoimmune etiology or an infectious etiology. In some instances, the underlying etiology may not be clear, and the diagnosis given is idiopathic aortitis. Cases of idiopathic aortitis are usually diagnosed based on histopathologic findings. Here, we present a case involving a 31-year-old female presenting with acutely worsening exertional shortness of breath and left-sided chest pain. An echocardiogram revealed a severely reduced ejection fraction with severe aortic regurgitation and diffusely increased aortic intima-media thickness. Bioprosthetic aortic valve replacement was performed with histology, showing findings consistent with aortitis, and the patient received the diagnosis of idiopathic aortitis. This case highlights the need to consider aortitis as a differential in young patients presenting with exertional chest pain and severe aortic insufficiency.

6.
Cureus ; 16(6): e63432, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39077287

RESUMEN

Prosthetic aortic valve dehiscence is a rare but potentially life-threatening complication that can occur after aortic valve replacement surgery. This condition occurs when the prosthetic valve becomes detached or dislodged from its original position leading to aortic valve regurgitation and congestive heart failure. The most common risk factors for prosthetic valve dehiscence include infective endocarditis, ascending aortic aneurysm, and severe calcification of the aortic valve. Ankylosing spondylitis, non-infectious aortitis, and accompanying vasculitis can also cause aortic valve dehiscence. Transthoracic echocardiography and transesophageal echocardiography usually reveal an unstable prosthesis with rocking motion and paravalvular regurgitation. Fluoroscopy and cardiac computed tomography (CT) are useful complementary tests, especially in patients with significant artifacts related to a valve prosthesis. Patients with prosthetic valve dehiscence and paravalvular regurgitation eventually develop heart failure and circulatory collapse. Timely diagnosis and early surgical intervention in these patients are crucial to achieve good long-term outcomes.

7.
Rev. Inst. Med. Trop ; 19(1)jun. 2024.
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1569564

RESUMEN

La endocarditis infecciosa (EI) es una enfermedad causada por microorganismos que se asientan principalmente en las válvulas cardiacas. Frecuentemente ocurren por laceraciones orales, gastrointestinales y urogenitales, además de procedimientos médicos que pueden causar bacteriemia la cual conlleva a adherencia bacteriana e inflamación local y éstas a destrucción valvular(1,2). Las bacterias grampositivas son mayoritariamente asociadas a EI, y en menor proporción, las del grupo HACEK, saprofitos de la orofaringe, que son responsables de menos del 5% de casos(2-4). Se presenta el caso de un varón de 23 años con cuadro de 1 mes de evolución de sensación febril, sudoración y astenia; al que posteriormente se agrega tos productiva. Se plantea foco probable cardiológico por antecedentes y hallazgos físicos, retornando aislamiento del germen Haemophilus aphrophilus, microorganismo poco habitual.


Infective endocarditis (IE) is a disease caused by microorganisms that settle mainly in the heart valves. They frequently occur due to oral, gastrointestinal and urogenital lacerations, in addition to medical procedures that can cause bacteremia which leads to bacterial adhesion and local inflammation and these to valve destruction(1,2).. Gram-positive bacteria are mostly associated with IE, and to a lesser extent, those of the HACEK group, saprophytes of the oropharynx, which are responsible for less than 5% of cases(2-4). We present the case of a 23-year-old man with a 1-month history of fever, sweating, and asthenia; to which a productive cough is later added. A probable cardiological focus is proposed due to history and physical findings, returning isolation of the Haemophilus aphrophilus germ, an unusual microorganism.

8.
J Yeungnam Med Sci ; 41(3): 213-219, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38863223

RESUMEN

BACKGROUND: Aortic valve replacement (AVR) has recently been performed at many centers using a minimally invasive approach to reduce postoperative mortality, morbidity, and pain. Most previous reports on minimally invasive AVR (MiAVR) have mainly focused on aortic stenosis, and those exclusively dealing with aortic regurgitation (AR) are few. The purpose of this study was to investigate early surgical results and review our experience with patients with chronic severe AR who underwent AVR via right anterior mini-thoracotomy (RAT). METHODS: Data were retrospectively collected in this single-center study. Eight patients who underwent RAT AVR between January 2020 and January 2024 were enrolled. Short-term outcomes, including the length of hospital stay, in-hospital mortality, postoperative complications, and echocardiographic data, were analyzed. RESULTS: No in-hospital mortalities were observed. Postoperative atrial fibrillation occurred temporarily in three patients (37.5%). However, none required permanent pacemaker implantation or renal replacement therapy. The median values of ventilator time, length of intensive care unit stay, and hospital stay were 17 hours, 34.5 hours, and 9 days, respectively. Preoperative and postoperative measurements of left ventricular ejection fraction were similar. However, the left ventricular end systolic and diastolic diameters significantly decreased postoperatively from 42 mm to 35.5 mm (p=0.018) and 63 mm to 51 mm (p=0.012), respectively. CONCLUSION: MiAVR via RAT is a safe and reproducible procedure with acceptable morbidity and complication rates in patients with chronic severe AR. Despite some limitations such as a narrow surgical field and demanding learning curve, MiAVR is a competent method for AR.

9.
Cureus ; 16(5): e60562, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38887341

RESUMEN

We present a unique clinical scenario of a 58-year-old male with a past medical history of hypertension who initially presented with chest pain and was ruled in for non-ST elevation myocardial infarction (NSTEMI) but rapidly developed respiratory failure secondary to aortic insufficiency complicated by cardiogenic shock (CS), attributed to aortic valve prolapse. Intriguingly, the patient had a normal ECG on presentation, underscoring the dynamic nature of valvular pathology. The development of CS highlights the importance of early recognition, prompt diagnosis, and interdisciplinary management in such complex cases.

10.
Circulation ; 149(25): 1938-1948, 2024 06 18.
Artículo en Inglés | MEDLINE | ID: mdl-38804148

RESUMEN

BACKGROUND: Ascending aorta dilation and aortic valve degeneration are common complications in patients with bicuspid aortic valve. Several retrospective studies have suggested the benefit of statins in reducing these complications. This study aimed to determine whether atorvastatin treatment is effective in reducing the growth of aortic diameters in bicuspid aortic valve and if it slows the progression of valve calcification. METHODS: In a randomized clinical trial, 220 patients with bicuspid aortic valve (43 women; 46±13 years of age) were included and treated with either 20 mg of atorvastatin per day or placebo for 3 years. Inclusion criteria were ≥18 years of age, nonsevere valvular dysfunction, nonsevere valve calcification, and ascending aorta diameter ≤50 mm. Computed tomography and echocardiography studies were performed at baseline and after 3 years of treatment. RESULTS: During follow-up, 28 patients (12.7%) discontinued medical treatment (15 on atorvastatin and 13 taking placebo). Thus, 192 patients completed the 36 months of treatment. Low-density lipoprotein cholesterol levels decreased significantly in the atorvastatin group (median [interquartile range], -30 mg/dL [-51.65 to -1.75 mg/dL] versus 6 mg/dL [-4, 22.5 mg/dL]; P<0.001). The maximum ascending aorta diameter increased with no differences between groups: 0.65 mm (95% CI, 0.45-0.85) in the atorvastatin group and 0.74 mm (95% CI, 0.45-1.04) in the placebo group (P=0.613). Similarly, no significant differences were found for the progression of the aortic valve calcium score (P=0.167) or valvular dysfunction. CONCLUSIONS: Among patients with bicuspid aortic valve without severe valvular dysfunction, atorvastatin treatment was not effective in reducing the progression of ascending aorta dilation and aortic valve calcification during 3 years of treatment despite a significant reduction in low-density lipoprotein cholesterol levels. REGISTRATION: URL: https://www.clinicaltrialsregister.eu; Unique identifier: 2015-001808-57. URL: https://www.clinicaltrials.gov; Unique identifier: NCT02679261.


Asunto(s)
Válvula Aórtica , Atorvastatina , Enfermedad de la Válvula Aórtica Bicúspide , Calcinosis , Progresión de la Enfermedad , Enfermedades de las Válvulas Cardíacas , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Humanos , Atorvastatina/uso terapéutico , Femenino , Masculino , Persona de Mediana Edad , Válvula Aórtica/diagnóstico por imagen , Válvula Aórtica/patología , Válvula Aórtica/anomalías , Válvula Aórtica/efectos de los fármacos , Calcinosis/tratamiento farmacológico , Calcinosis/diagnóstico por imagen , Calcinosis/patología , Enfermedad de la Válvula Aórtica Bicúspide/diagnóstico por imagen , Enfermedad de la Válvula Aórtica Bicúspide/tratamiento farmacológico , Enfermedades de las Válvulas Cardíacas/tratamiento farmacológico , Enfermedades de las Válvulas Cardíacas/diagnóstico por imagen , Enfermedades de las Válvulas Cardíacas/patología , Adulto , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Dilatación Patológica/tratamiento farmacológico , Estudios de Seguimiento , Método Doble Ciego , Resultado del Tratamiento , Aorta/diagnóstico por imagen , Aorta/patología , Aorta/efectos de los fármacos , Enfermedad de la Válvula Aórtica/tratamiento farmacológico , Estenosis de la Válvula Aórtica
11.
Cureus ; 16(3): e55341, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38559539

RESUMEN

Infective endocarditis (IE) refers to a microbial infection affecting either a heart valve or endocardium, resulting in tissue damage and the formation of vegetation. Native aortic valve endocarditis in children is rare and is associated with serious complications related to valvular insufficiency and systemic embolizations. As reports about community-acquired methicillin-resistant Staphylococcus aureus (MRSA) native aortic valve endocarditis in children are very scarce, we report this case along with a literature review about its complications and management. Here, we report the case of a seven-month-old infant who was previously healthy and presented with signs and symptoms of shock and systemic embolizations secondary to native aortic valve IE. His blood culture showed MRSA. He developed aortic valve insufficiency heart failure and multiorgan septic emboli that progressed to fatal refractory multiorgan failure. The management of complicated aortic valve endocarditis in children is challenging and needs a multidisciplinary team approach and prompt intervention.

12.
Tex Heart Inst J ; 51(1)2024 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-38686682

RESUMEN

Quadricuspid aortic valve is a rare congenital cardiac anomaly with an incidence of 0.008% to 0.043%. Its clinical course varies depending on cusp anatomy, function, and associated cardiac malformations. It frequently progresses to aortic valve regurgitation that may require surgical valve replacement. Detection has shifted from incidental discovery during autopsies or cardiac surgeries in the early 20th century to various cardiac imaging methods in recent decades. In addition to contributing to the literature, this report supports the use of transesophageal echocardiography more liberally to detect aortic valve abnormalities. The case presents a 48-year-old female patient with an incidentally discovered quadricuspid aortic valve.


Asunto(s)
Insuficiencia de la Válvula Aórtica , Válvula Aórtica , Ecocardiografía Transesofágica , Cardiopatías Congénitas , Hallazgos Incidentales , Humanos , Femenino , Válvula Aórtica/anomalías , Válvula Aórtica/diagnóstico por imagen , Válvula Aórtica/cirugía , Persona de Mediana Edad , Ecocardiografía Transesofágica/métodos , Insuficiencia de la Válvula Aórtica/cirugía , Insuficiencia de la Válvula Aórtica/diagnóstico , Insuficiencia de la Válvula Aórtica/etiología , Cardiopatías Congénitas/diagnóstico , Cardiopatías Congénitas/cirugía , Cardiopatías Congénitas/diagnóstico por imagen , Valor Predictivo de las Pruebas , Implantación de Prótesis de Válvulas Cardíacas , Ecocardiografía Doppler en Color
13.
Artículo en Inglés | MEDLINE | ID: mdl-38569878

RESUMEN

OBJECTIVES: Valve-sparing aortic root replacement requires expertise to predict repair results and prevent secondary aortic clamping for valve repair or replacement secondary to aortic valve insufficiency. Thus, intraoperative evaluation of the aortic valve using diastolic pressure at the aortic root may be helpful. The goal of this retrospective study was to compare the early and mid-term results of aortic valve repair with those of valve-sparing aortic root replacement using intraoperative endoscopic evaluation. METHODS: We included 158 patients who underwent aortic valve repair with valve-sparing aortic root replacement at our hospital between December 2003 and January 2022. The patients were divided into a non-endoscopic evaluation group (group NE, n = 97; mean age 55 years) and an endoscopic evaluation group (group E, n = 61; mean age 51 years). RESULTS: The incidence of a second aortic clamping for aortic valve insufficiency was significantly greater in group NE (17.5%) than in group E (1.6%; P = 0.002). The presence of none or trivial aortic valve insufficiency on transthoracic echocardiography at discharge in group E (87.6%) was significantly lower than in group NE (98.4%; P = 0.017). No significant difference in the cumulative incidence of recurrence of moderate AI (P = 0.47), hospitalization for heart failure (P = 0.84) and reoperation (P = 0.25) between groups NE and E. CONCLUSIONS: Intraoperative endoscopic evaluation during aortic valve repair with valve-sparing aortic root replacement correlated with a lower incidence of second aortic clamping because of aortic valve insufficiency and effective aortic valve insufficiency control.

14.
Inn Med (Heidelb) ; 65(5): 431-438, 2024 May.
Artículo en Alemán | MEDLINE | ID: mdl-38635087

RESUMEN

The pathophysiology of aortic valve diseases is of predominantly degenerative nature, characterized by calcific aortic valve stenosis, which is associated with a reduction in prognosis. The prevalence of aortic valve insufficiency also increases with advancing age. Timely causal treatment is crucial in the management of aortic valve diseases. Following the indication for intervention, the heart team plays a central role in evaluating the results and making therapeutic decisions that consider the patient's preferences. In the assessment of treatment options, considerations regarding the long-term perspective are particularly crucial, especially in younger patients. The most common therapeutic approach for aortic valve diseases is the introduction of a new valve prosthesis. In the majority of cases, this is now achieved through catheter-based implantation of a bioprosthetic heart valve, known as transcatheter aortic valve implantation (TAVI). Open surgical aortic valve replacement (AVR) is favored in younger patients with low surgical risk or in the case that TAVI is not feasible. In AVR, both biological and the longest-lasting mechanical prosthesis types are used. Surgical repair techniques are primarily applied in cases of aortic valve regurgitation. Notably, TAVI, as well as surgical procedures for the treatment of aortic valve diseases, have undergone significant advancements in recent years, including expanded indications for TAVI and, on the surgical side, in particular the development of minimally invasive surgical techniques.


Asunto(s)
Reemplazo de la Válvula Aórtica Transcatéter , Humanos , Reemplazo de la Válvula Aórtica Transcatéter/métodos , Válvula Aórtica/cirugía , Válvula Aórtica/patología , Prótesis Valvulares Cardíacas , Enfermedad de la Válvula Aórtica/cirugía , Implantación de Prótesis de Válvulas Cardíacas/métodos , Implantación de Prótesis de Válvulas Cardíacas/instrumentación , Estenosis de la Válvula Aórtica/cirugía , Insuficiencia de la Válvula Aórtica/cirugía , Insuficiencia de la Válvula Aórtica/fisiopatología , Bioprótesis
15.
Cureus ; 16(2): e53716, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38455816

RESUMEN

This is the case of a 31-year-old man with no significant past medical history who presented to the emergency department experiencing persistent fevers, chills, and malaise for the past 2-3 weeks. During this period, he had multiple urgent care visits for possible left-sided otitis media which was treated with short a course of Augmentin. While on antibiotics his symptoms would improve, but they would reappear once he had finished treatment. The patient also had significant dental carries with a chronic right molar infection. At the emergency department, blood cultures grew two out of two Gemella morbillorum. Transthoracic echocardiography showed a 1 cm x 0.5 cm mobile density on the left coronary cusp of the aortic valve with moderate-severe aortic insufficiency. The patient was started on empiric IV vancomycin. Further workup revealed that the source of infection was dental carries. While proceeding with a transesophageal echocardiogram, the patient went into flash pulmonary edema requiring ICU admission. Imaging revealed an elongated 1.7 cm x 0.6 cm vegetation attached to the base of the left coronary cusp on the left ventricular outflow tract side with severe aortic regurgitation and a small 0.8 cm x 0.8 cm vegetation on the atrial side of the anterior mitral leaflet at A2 associated with mitral leaflet perforation with severe mitral regurgitation. Oral surgery removed the infected teeth. Cardiothoracic surgery performed open heart valve replacement which revealed a completely destroyed aortic valve, droplet vegetation, and destruction of the mitral valve leading to mechanical valve replacement. The patient received a two-week course of gentamycin while in the ICU with meropenem. Once sensitivities were back, he was switched to IV penicillin therapy for a total of six weeks.

16.
Clin Res Cardiol ; 2024 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-38478089

RESUMEN

BACKGROUND: Aortic regurgitation (AR) is associated with increasing age, rheumatic heart disease, and a bicuspid aortic valve, but its association with other comorbidities and race is less known. The purpose of this study was to investigate any association between AR and comorbid conditions in older adults above 40. METHOD: The large Nationwide Inpatient Sample database was utilized for our study using uni- and multivariate analysis. Data were extracted from available ICD-10 codes for the years of 2016-2020. RESULTS: The NIS data included 112,982,565 patients. A total of 660,730 were found to have AR. AR was found to be associated with male gender (OR 1.15, CI 1.14-1.16, P < 0.001), smoking (OR 1.04, CI 1.02-1.05, P < 0.001), hypertension (OR 1.65, CI 1.62-1.68, P < 0.001), hyperlipidemia (OR 1.36, CI 1.34-1.37, P < 0.001), chronic kidney disease (OR 1.22, CI 1.21-1.24, P < 0.001), antiphospholipid antibody syndrome (OR 1.56, CI 1.33-1.83, P < 0.001), rheumatoid arthritis (OR 1.1, CI 1.06-1.14, P < 0.001), scleroderma (OR 1.49, CI 1.31-1.7, P < 0.001), systemic connective tissue disorders (OR 1.32, CI 1.25-1.4, P < 0.001), Raynaud's syndrome (OR 1.62, CI 1.47-1.77, P < 0.001), and systemic lupus erythematosus (OR 1.44, CI 1.34-1.54, P < 0.001) in add to known bicuspid aortic valve. CONCLUSION: Using a very large database, we found new associations between AR and many comorbid conditions, including many inflammatory and chronic degenerative diseases in addition to the known risk factors.

17.
Circ Cardiovasc Interv ; 17(5): e013898, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38533653

RESUMEN

BACKGROUND: Acute aortic regurgitation is life-threatening with few nonsurgical options for immediate stabilization. We propose Trans-Aortic Balloon to Ease Regurgitation Applying Counter-Pulsation (TABERNACL), a simple, on-table temporary valve using commercially available equipment to temporize acute severe aortic regurgitation. METHODS: We hypothesize that an appropriately sized commercial balloon dilatation catheter-straddling the aortic annulus and connected to a counterpulsation console-can serve as a temporizing valve to restore hemodynamic stability in acute aortic regurgitation. We performed benchtop testing of valvuloplasty, angioplasty, and sizing balloons as counterpulsation balloons. TABERNACL was assessed in vivo in a porcine model of acute aortic regurgitation (n=8). We also tested a static undersized, continuously inflated transvalvular balloon as a spacer intended physically to obstruct the regurgitant orifice. RESULTS: Benchtop testing identified that Tyshak II and PTS sizing (NuMed Braun) balloon catheters performed adequately as temporary valves (ie, complete inflation and deflation with each cycle) and resisted fatigue, in contrast to others. When TABERNACL was used in the acute severe regurgitation animals, there was immediate hemodynamic improvement, with a significant 35% increase in diastolic aortic pressure by 16 mm Hg ([95% CI, 7-25] P=0.0056), 34% reduction in left ventricular end-diastolic pressure by -7 mm Hg ([95% CI, -10 to -5] P=0.0006), improvement in the aortic diastolic index by 0.28 ([95% CI, 0.18-0.39] P=0.0009), and reversal of electrocardiographic myocardial ischemia. As an alternative, static balloon inflation across the aortic valve stabilized regurgitation hemodynamics at the expense of a new aortic gradient and caused excessive ectopy from balloon movement in the left ventricular outflow tract. CONCLUSIONS: TABERNACL improves hemodynamics and reduces coronary ischemia by electrocardiography in animals with acute severe aortic regurgitation. TABERNACL valves obstruct the diastolic regurgitant orifice without systolic obstruction. This may prove a lifesaving bridge to definitive valve replacement therapy.


Asunto(s)
Insuficiencia de la Válvula Aórtica , Valvuloplastia con Balón , Modelos Animales de Enfermedad , Hemodinámica , Animales , Hemodinámica/efectos de los fármacos , Insuficiencia de la Válvula Aórtica/fisiopatología , Insuficiencia de la Válvula Aórtica/etiología , Insuficiencia de la Válvula Aórtica/diagnóstico por imagen , Sus scrofa , Válvula Aórtica/fisiopatología , Válvula Aórtica/cirugía , Válvula Aórtica/diagnóstico por imagen , Diseño de Equipo , Recuperación de la Función , Enfermedad Aguda , Catéteres Cardíacos , Factores de Tiempo , Índice de Severidad de la Enfermedad , Función Ventricular Izquierda/efectos de los fármacos
18.
Inn Med (Heidelb) ; 65(5): 425-430, 2024 May.
Artículo en Alemán | MEDLINE | ID: mdl-38436690

RESUMEN

Currently, there is no specific medication approved for the treatment of valvular heart disease per se. Except for secondary mitral valve insufficiency and tricuspid valve insufficiency in pulmonary hypertension, drug therapy for higher-grade valvular heart disease is limited to diuretic therapy for symptom control. Conservative therapy for comorbidities and potential heart failure can be beneficial regardless of the specific valve lesion. In cases of aortic valve stenosis or insufficiency, controlling arterial hypertension is important. Patients with mitral valve stenosis benefit from rhythm and rate control. Diuretics can help reduce regurgitant volume in patients with primary mitral valve insufficiency and tricuspid valve insufficiency. In addition to drug therapy, maintaining functional capacity is crucial for the outcome of patients. Therefore, it is recommended to engage in active physical activity whenever possible, despite the presence of valvular heart disease.


Asunto(s)
Enfermedades de las Válvulas Cardíacas , Humanos , Enfermedades de las Válvulas Cardíacas/tratamiento farmacológico , Adulto , Tratamiento Conservador/métodos , Diuréticos/uso terapéutico
19.
Cureus ; 16(1): e52331, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38361693

RESUMEN

Baraitser-Winter syndrome (BRWS) is a rare genetic disorder caused by mutations in the ACTB and ACTG1 genes. It is characterized by intellectual disability, physical malformations, and dysmorphic craniofacial features. Additionally, cardiovascular abnormalities may also be present. We present a case of a 15-year-old boy with BRWS associated with congenital bicuspid aortic valve and severe aortic insufficiency which was managed successfully with Ross procedure.

20.
Cureus ; 16(1): e52488, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38371036

RESUMEN

Antibiotic prophylaxis prior to dental work in bicuspid aortic valve (BAV) patients is currently a matter of debate. The American Dental Association does not require those with native BAV to receive antibiotic prophylaxis prior to dental work as BAV is considered an "intermediate" risk for infective endocarditis (IE). We present the case of a 63-year-old male, with a medical history of BAV, who acquired Streptococcus sanguinis IE after a routine dental cleaning four months prior to initial onset of symptoms. He exhibited new-onset and severe aortic regurgitation at presentation, requiring urgent aortic valve replacement to restore valve function. BAV patients are at high risk of IE, emphasizing the need for prophylactic antibiotics in dental cleaning as well as invasive dental procedures in those with BAV.

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