The quadricuspid pulmonary valve (QPV) is a rare congenital anomaly reported in the general population. There are less than 300 reported cases in the literature to date. It has been found in one in 400 to one in 2000 autopsies. We describe here the case of a 47-year-old patient who ...

Skin loss, need for vein grafts, and secondary surgeries are often encountered in avulsion injuries of the thumb. We report a case of successful salvage of an avulsion type of near total amputation of the thumb following a conveyor belt injury in which the first dorsal metacarpal artery adiposofascial flap ...

Pulmonary hypertension impacts negatively on right ventricular function; however, understanding pulmonary vasculature can be difficult. Data from invasive monitoring or traditional echocardiography may not represent the full extent of pulmonary arterial disease. An important element missing from invasive monitoring is the ability to take into account the effects of pulsatile ...

  Pulmonary artery (PA) stenosis due to Takayasu Arteritis (TA) is usually managed by angioplasty techniques. We present a patient with isolated PA stenosis with TA with in-stent stenosis. The surgical management and pathophysiology of this disease are reviewed. (J Card Surg 2012;**1-3).

Visceral artery pseudoaneurysms (PA) are a rare complication of abdominal surgery. Their natural history is generally unknown and unpredictable, so a repair is recommended. We report the case of a 77-year-old male with a huge PA of the hepatic artery diagnosed by computed tomography (CT) and treated successfully with percutaneous ...

Cardiac catheterization is the reference method for the hemodynamic study of the pulmonary circulation. However, cardiac catheterization is an expensive and invasive method. Echocardiography is a reliable noninvasive alternative method. The purpose of our study was to determine the correlation between echocardiographic and haemodynamic data obtained by cardiac catheterization in ...

Perforation of the atretic pulmonary valve with balloon dilation in infants with pulmonary atresia with intact ventricular septum (PA-IVS) is standard initial therapy for right-ventricular (RV) decompression. This procedure often results in adequate pulmonary blood flow, thus eliminating the need for neonatal surgery. Nonetheless, the incidence of RV outflow-tract complications ...

Whether to provide surgical intervention within 24 hours of intravenous recombinant tissue plasminogen activator (rt-PA) treatment is a subject of controversy. In this study, we report a case in which neurological deterioration was prevented by urgent bypass surgery performed shortly after rt-PA treatment.

A patient with unbalanced right ventricular dominant atrioventricular septal defect with ascending and transverse arch hypoplasia underwent hybrid stage 1 palliation. On postoperative day 7, he experienced irritability and acute cyanosis. Echocardiography demonstrated a thrombus occluding the right pulmonary artery band. Emergency cardiac catheterization confirmed thrombosis of the right pulmonary artery ...

Decellularized xenogenic or allogenic heart valves have been used as starter matrix for tissue-engineering of valve replacements with (pre-)clinical promising results. However, xenografts are associated with the risk of immunogenic reactions or disease transmission and availability of homografts is limited. Alternatively, biodegradable synthetic materials have been used to successfully create ...

Aortic valve disease develops in an escalating fashion in elderly patients. Current treatments including total valve replacement and valve repair techniques are still suboptimal. A thorough understanding of the animal and human valve tissue properties, particularly their differences, is crucial for the establishment of preclinical animal models and strategies for ...

Purpose: To assess the value of Multi-Detector Computed Tomography Venography (MDCTV) in the assessment of tunneled hemodialysis central vein catheters (CVCs) dysfunction. Methods: Twenty-five patients who had tunneled CVC dysfunction without abnormality found by x-ray and ultrasound were enrolled. Anti-platelet agents, anticoagulants, and thrombolytic therapy with urokinase failed to resume ...

Inelastic phenomena such as softening and unrecoverable inelastic strains induced by loading have been observed experimentally in soft tissues such as arteries. These phenomena need to be accounted for in constitutive models of arterial tissue so that computational models can accurately predict the outcomes of interventional procedures such as balloon ...

OBJECTIVE: Our aim was to assess acute hemodynamic changes with stent insertion, outcomes and factors associated with increased longevity of stented small diameter homograft conduits. BACKGROUND: Right ventricle-to-pulmonary artery (RV-PA) homograft conduits are commonly used to palliate RV outflow tract obstruction. Bare metal stenting (BMS) and transcatheter pulmonary valve (TPV) ...

Beneficial effect of recombinant tissue plasminogen activator (rtPA) in cerebral arterial dissection is controversial. We experienced a 45-year-old man with acute ischemic stroke due to middle cerebral artery dissection, who was treated with rtPA. Characteristic vascular findings indicating dissection became evident only in subsequent angiographic examinations. Our case indicates that serial angiographic examinations should ...

ABSTRACT: Generally, a true aneurysm is a dilatation of the vessel wall, whereas a pseudoaneurysm (PA) is a weakening or rent in a vessel wall, with contained rupture into the surrounding tissues. In the face, PAs of the facial artery are an extremely rare development after penetrating or blunt trauma. ...

We report the case of a patient with a pulmonary artery (PA) aneurysm secondary to a regurgitant quadricuspid pulmonary valve, in which both lesions were successfully repaired. The patient, a 16-year old boy, was known to have had pulmonary regurgitation and progressive dilation of the PA for years. He was ...

We aimed to explore the diagnostic accuracy of various mediastinal measurements in determining acute nontraumatic thoracic aortic dissection with respect to posteroanterior (PA) and anteroposterior (AP) chest radiographs, which had received little attention so far. We retrospectively reviewed 100 patients (50 PA and 50 AP chest radiographs) with confirmed acute ...

ObjectiveWall thickness is a poorly documented characteristic of cerebral aneurysms which may provide insight into adaptive aneurysmal growth, aneurysm rupture risk and response to endovascular treatment. The distribution of aneurysm wall thickness, as observed by intraoperative video microscopy, is described.Methods54 unruptured saccular cerebral aneurysms were selected based on the availability ...

Serious complications may occur after heart valve replacement, and many such patients will require reoperation. The study aim was to identify the pattern of tissue response around the sewing ring of those valves that have been explanted as a result of various valve-associated complications. A total of 51 mechanical heart ...

Pharmacomechanical thrombolysis is being used increasingly for the treatment of deep vein thrombosis (DVT) and aims to reduce the severity of post-thrombotic syndrome. We report the case of a 60-year-old woman with extensive lower limb DVT that was treated using pharmacomechanical thrombolysis leading to complete recovery of her deep venous ...

Recanalization rates with the administration of intravenous tissue plasminogen activator in acute ischemic stroke are low. Adjuvant endovascular techniques that achieve recanalization by direct intra-arterial (IA) delivery of thrombolytics, mechanical clot retrieval, clot aspiration, and stenting may complement intravenous pharmacotherapy. IA thrombolytics can be administered within 6 hours of symptom ...

OBJECTIVE: The purpose of this study was to evaluate the correlation between bolus-tracking parameters and heart rate (HR) with attenuation of the ascending aorta and create a linear regression model for predicting coronary attenuation in coronary computed tomography angiography (CCTA). METHODS: A total of 50 patients (31 men, 19 women; ...

Abstract  Fifty-year-old male developed an infected perigraft collection five years following wrapping of a Dacron tube with residual aneurysmal ascending aortic tissue. Treatment consisted of excision of the graft, debridement of the infected surrounding tissues, and replacement using a rifampin-soaked Hemashield tube graft. This case demonstrates the potential risk of ...

Aims: Pseudo-aneurysm (PA) of the femoral artery is the most frequent complication after diagnostic or therapeutic catheterisation. PA may manifest with large and painful haematoma or compression of the adjacent nerve and vein. Among several therapeutic approaches, compression by injection of saline around the neck is a recent and promising ...

The purpose of this study was to compare a dual-freeze protocol with a triple-freeze protocol for pulmonary cryoablation in a porcine lung model. Five dual- (10-5-10-5) and five triple-freeze (5-5-5-5-10-5) cryoablations were performed on an exposed operation field in normal porcine lung. Changes in the temperature of the cryoprobes and ...

Aggressive intravenous thrombolysis of pulmonary emboli after major thoracic surgery has rarely been reported and is controversial because of an assumed risk of fatal bleeding. We report a 62-year old female who underwent left upper lobectomy. Her postoperative course was complicated with symptomatic pulmonary embolism and on postoperative day 5 ...

OBJECTIVE: To assess causes, incidence and patterns of perfusion defects (PDs) on dual-energy perfusion CT angiography (DECTA) in clinically suspected acute pulmonary thromboembolisms (PTE). MATERIALS AND METHODS: Consecutive 537 patients who underwent DECTA for suspicion of PTE were retrospectively reviewed. After excluding patients with possible PTE or unsatisfactory perfusion map ...

An unusual case of central venous catheter (CVC)-related thrombosis during supine surgery in the prone position is presented. A 76-year-old woman was scheduled for elective surgery to repair a broken lumbar instrument. A single-lumen CVC was inserted via the right internal jugular vein. Surgery was performed in the prone position, ...

Cartilaginous metaplasia of superficial veins was found in a 64-year-old woman who underwent surgery for varicose veins. At operation, some varicose veins of the medial thigh were semi-rigid and fibroelastic to the touch. Histology revealed that half the lumen was occupied by chondroid tissue. The other half was obliterated by ...

INTRODUCTION: Treatment of massive pulmonary embolism leading to cardiac arrest is controversial but restitution of circulation within a shorter time is crucial. Cardiopulmonary support and therapeutic hypothermia is an option for cardiac arrest initially of unknown reason. However, hypothermia may influence the effect of the ongoing intrinsic fibrinolysis. OBJECTIVES: To ...

The influence of intraluminal thrombus (ILT) on the proteolytic environment within the wall of an abdominal aortic aneurysm (AAA) is unknown. This is the first study to examine the correlation between ILT thickness and the levels of matrix metalloproteinases (MMPs) and their natural inhibitors (tissue inhibitors of matrix metalloproteinases [TIMPs]) ...

PURPOSE: This study was designed to show the relationship between tricuspid annular plane systolic excursion (TAPSE) and stroke volume (SV) by thermodilution using three different methods and also to assess whether TAPSE can track hemodynamic changes associated with volume loading and ephedrine administration. METHODS: This was an observational study in ...

Despite the rarity of femoral aneurysm and the plethora of other causes of swelling in and around its anatomic location, the possibility of its existence must always be borne in mind. A rare case of metachronously bilateral femoral aneurysms mimicking soft tissue sarcoma in a young Nigerian man is presented. ...

The internal maxillary artery (IMAX) is a promising arterial pedicle to function as a donor vessel for extracranial-to-intracranial (EC-IC) bypass procedures. The access to the IMAX through the anterior portion of the middle cranial fossa floor allows a much shorter interposition graft to be used to create a bypass to ...

Polyvinyl alcohol (PVA) cryogel covered stents may reduce complications from thrombosis and restenosis by decreasing tissue prolapse. Finite element analysis was employed to evaluate the effects of PVA cryogel layers of varying thickness on tissue prolapse and artery wall stress for two common stent geometries and two vessel diameters. Additionally, ...

A full-term baby with double-outlet right ventricle and total anomalous pulmonary venous connection (TAPVC) complicated with left main pulmonary artery (PA) stenosis, presented with heart failure caused by increased pulmonary blood flow. Based on significant discrepancies in size and development between the left and right PAs, we performed right PA ...

BACKGROUND/INTRODUCTION: Diseases of the aorta can alter the local mechanical properties of the tissue, leading to aneurysms and plaque instability. Local tissue properties are best evaluated from surgical samples or autopsy tissue using mechanical testing ex vivo. We examined whether formalin-fixed tissues preserve regional and local variations in tissue properties ...

OBJECTIVESImplantation of stents into the ductus arteriosus is an alternative treatment to palliative or corrective cardiac surgery in newborns with duct-dependent pulmonary circulation, although the use of this technique for congenital heart disease is limited.METHODSBetween April 2010 and June 2011, 13 patients underwent patent ductus arteriosus stenting after full assessment ...

The creation of musculoskeletal tissue represents an alternative for the replacement of soft tissue in reconstructive surgery. However, most of the approaches of creating artificial tissue have their limitations in the size as the maximally obtainable dimension of bioartificial tissue (BAT) is limited due to the lack of supporting vessels ...

Objective: A less invasive method to assess internal thoracic artery (ITA) graft function after coronary artery bypass grafting (CABG) is desired. This study reports the novel method to estimate ITA graft function using CT angiography. Materials and Methods: Fifty ITA grafts were assessed. Hounsfield Unit transition of each graft on ...

Acute ischaemic stroke has significant attendant morbidity and is one of the top ten causes of childhood death. It requires prompt investigation and management, however little is known about the safety and efficacy of acute thrombolytic therapies in childhood arterial ischaemic stroke. The authors report a case of a 13-year-old ...

Background: Cerebral aneurysms carry a high risk of rupture and so present a major threat to the patient's life. Accurate criteria for predicting aneurysm rupture are important for therapeutic decision-making, and some clinical and morphological factors may help to predict the risk for rupture of unruptured aneurysms, such as sex, ...

Magnetic resonance angiography (MRA) provides a noninvasive means to detect the presence, location and severity of atherosclerosis throughout the vascular system. In such studies, and especially those in the coronary arteries, the vessel luminal area is typically measured at multiple cross-sectional locations along the course of the artery. The advent ...

The surgical treatment of an aortic coarctation requires a resection of the stenotic area and direct suture of the aorta. An extended mobilization allows an enlargement of a hypoplastic distal aortic arch. In ductal dependent circulation, the distal aortic arch can be enlarged with a patch before tackling the coarctation ...

Competitive flow from native coronary artery is considered as a major factor in the failure of the coronary artery bypass grafts. However, the physiological effects are not very clear. The aim is to research the impact of competitive flow caused by different left anterior descending (LAD) artery stenosis degrees on ...

Purpose: Aim of this study was to establish preliminary data on the variations of arterial supply of thyroid gland in Karnataka population. Methods: The anterior triangles in the neck of formalin fixed cadavers were dissected. The length, branching pattern, number and length of branches of superior thyroid artery (STA) were ...

Accurate segmentation of carotid artery plaque in MR images is not only a key part but also an essential step for in vivo plaque analysis. Due to the indistinct MR images, it is very difficult to implement the automatic segmentation. Two kinds of classification models, that is, Bayes clustering and ...

Purpose: To share our hybrid endovascular experiences using chimney or sandwich stent grafts for acute aortic arch pathologies. Methods: Hybrid procedures for a distal aortic arch aneurysm and an ascending anastomotic aortic aneurysm rupture were reported. Right to left common carotid and left axillar artery bypasses were located. Covered stents ...

Standard surgical methods for managing true aneurysms of the deep femoral artery have not been established because these aneurysms are rare. An 85-year-old man, who had a ruptured aneurysm of the deep femoral artery, underwent aneurysmectomy and distal reconstruction with a contralateral autologous vein graft. Three-dimensional computed tomography is a ...