[Proposal of a human cadaveric model for bedside ultrasound-based pneumothorax detection.].

Introduction: In the last decade, the use of bedside ultrasound examination has become one of the defining elements of emergency and intensive-anesthesia care. Among the everyday applications, lung ultrasound examination, which received a huge boost in connection with the coronavirus pandemic, stands out in a profession-specific manner. The first step of the most frequently used protocols is the immediate diagnosis of life-threatening conditions (e.

Minimally invasive apical cannulation and cannula design for short-term mechanical circulatory support devices.

Background: Refractory cardiogenic shock is still a major clinical challenge with high mortality rates, although several devices can be used to conquer this event. These devices have different advantages and disadvantages originating from their insertion or cannulation method, therefore many complications can occur during their use. The aim of our study was to develop and create prototypes of a novel minimal invasively insertable, transapical cannula for surgical ventricular assist devices, which uniquely incorporates the inflow and outflow routes for the blood of the patient in itself, therefore it enables the use for only one cannula for patients in cardiogenic shock.

[Rare variation of hepatic blood supply with accessory right and left hepatic artery].

In recent decades, multiple studies have examined the various manifestations of the hepatic blood supply using anatomical preparation and imaging procedures (angiography, CT). Based on these observations, several classifications have emerged to determine blood supply types and their incidence rates. Our aim is to present a rare variation of the arterial blood supply of the liver through an anatomical preparation.

Human Cadaveric Artificial Lung Tumor-Mimic Training Model.

An important phase in surgical training is gaining experience in real human anatomical situations. When a cadaver is available it may complement the various artificial practice models. However, it is often necessary to supplement the characteristics of the cadavers with a simulation of a tumor.

Feasibility of the Far Lateral Suboccipital Approach to the Retroodontoid Region. How Much Bone Removal Is Truly Needed?

Objective: The posterolateral extradural suboccipital approach can be used to reach the anterior epidural space and the retro-odontoid regions. The extent of necessary bone removal of the atlas vertebra (C1) has not yet been defined. We studied the changes in the size of the horizontal and vertical surgical windows using stepwise bone removal of C1.

Real 3D Visualization of the Circumflex Artery Surrounding the Mitral Annulus.

Background:  The circumflex coronary artery is located close to the mitral annulus. Consequently, it is not immune to iatrogenic damage during mitral valve procedures. Our objective was to visualize the circumflex artery from a surgeon's point of view, emphasizing its proximity.

A different technique for sutureless coronary bypass grafting.

Introduction: Many coronary anastomotic devices have been designed to replace manual stitching in coronary surgery; however, interestingly, none of them became widespread. Our aim was to work out an easy and fast endoluminal vessel-to-vessel stent bridge distal anastomotic technique.

Materials And Methods: Ten coronary arteries of eight fresh human hearts were used in this study.

[New approach in the surgical treatment of mitral regurgitation: beating heart transapical neochord implantation].

Severe mitral regurgitation due to prolapse of the valve demands early surgical intervention. Recently artificial chord implantation is the prefered solution, which requires cardioplegia and application of cardiopulmonary bypass using the left atrial approach. Transoesophageal echocardiography guided transapical neochord implantation is an emerging new technique for the treatment of mitral regurgitation.

Minimally Invasive Cardiac Surgery Using a 3D High-Definition Endoscopic System.

We describe a minimally invasive heart surgery application of the EinsteinVision 2.0 3D high-definition endoscopic system (Aesculap AG, Tuttlingen, Germany) in an 81-year-old man with severe tricuspid valve insufficiency. Fourteen years ago, he underwent a Ross procedure followed by a DDD pacemaker implantation 4 years later for tachy-brady-syndrome.

Endoscopic Resection of a Giant Left Atrial Appendage.

A 23-year-old woman with a history of arterial hypertension presented to our institution complaining of dyspnea and chest pain. Her workup including echocardiography and magnetic resonance imaging revealed an aneurysm of the left atrial appendage. No thrombus was identified in the aneurysm or left atrial appendage, and the patient was in sinus rhythm.

Experimental transapical endoscopic ventricular visualization and mitral repair.

Background: An increasing number of experimental beating heart animal studies describe simple transapical mitral valve repairs based on the direct endoscopic visualization of the left ventricle. The aim of our human cadaveric study was to develop a method for more complex transapical endoscopic procedures by on-pump heart operations.

Materials And Methods: After preparation of 20 human fresh cadavers, a standard left anterolateral minithoracotomy was performed in the fifth intercostal space and the pericardium was entered.

Comparative endoscopic anatomic description of the mitral valvular complex: a cadaveric study.

Background: We compared the aortic, left atrial, and apical approaches to visualize the mitral valve with the goal to investigate the endoscopic anatomy and give exact step-by-step descriptions of these views.

Materials And Methods: The mitral valvular complex of human cadaveric fresh hearts was investigated from three approaches using 0, 30, and 70 degrees rigid endoscopic optics. In 30 cases after the removal of the hearts, the endoscopes were introduced directly into the aortic root through an aortotomy, left atrium through a standard atriotomy, and apex of the heart through a transmural incision.

Safeguards and pitfalls in minimally invasive mitral valve surgery.

Minimally invasive mitral valve surgery has been established in many institutions worldwide. Appropriate indications and patient selection for this procedure must be based on a thorough understanding of its limitations and specific pitfalls. Particular risks can be minimized with careful attention to detail when planning and performing the surgery.