Publications by authors named "Hennig F"

Background: Temporary mechanical circulatory support (tMCS) has become a standard treatment in cardiogenic shock but is associated with high complication rates. This study analyzes common complications associated with modern tMCS devices and their impact on mortality depending on the tMCS approach.

Methods: We conducted a retrospective single-center analysis of patients with all-cause cardiogenic shock treated with veno-arterial extracorporeal life support, microaxial flow pump, and a combination of both (ECMELLA).

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  • Penile amputation is a rare but serious urological emergency that can result from various factors, necessitating advanced microsurgical techniques for successful reattachment to restore function and appearance.
  • *Recent advancements in microsurgery have improved the outcomes of penile replantation by allowing precise reconnections of blood vessels and nerves, which are essential for maintaining erectile function and sensation.
  • *A review of 46 cases identified common complications like postoperative necrosis (56.5%) and emphasized the importance of quick vascular repairs, while also suggesting new treatments such as hyperbaric oxygen therapy and the need for standardized protocols to improve outcomes and patient quality of life.
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  • Scientists wanted to see if a new method called hypothermic oxygenated machine perfusion (HOPE) is better for keeping donor hearts alive before they are transplanted, compared to the traditional cold storage method.
  • They did a big study with 229 patients across 15 transplant centers in Europe to compare these two methods.
  • The main goal was to find out if using HOPE reduces serious problems after heart transplant surgery, like heart failure or rejection, within the first 30 days.
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Heart failure (HF) is a common disease associated with high morbidity and mortality rates despite advanced pharmacological therapies. Heart transplantation remains the gold standard therapy for end-stage heart failure; however, its application is curtailed by the persistent shortage of donor organs. Over the past two decades, mechanical circulatory support, notably Left Ventricular Assist Devices (LVADs), have been established as an option for patients waiting for a donor organ.

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  • The study aimed to compare the perceived readiness of urologic residents and fellows with the opinions of program directors (PDs) in the U.S. regarding their preparedness for urologic procedures.
  • A survey of 93 participants revealed that both trainees and PDs reported moderate comfort levels in performing common urologic procedures, although PDs recognized a higher level of underperformance in specific tasks.
  • The findings suggested that while many felt COVID-19 did not impact trainees’ procedural comfort, it did influence their decisions about pursuing fellowships versus becoming general urologists.
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Speckle-tracking echocardiography (STE) parameters are an integral part of the assessment of left ventricular (LV) function. We aimed to evaluate established and novel STE parameters of LV diastolic function and their prognostic role in patients with LV anteroapical aneurysm undergoing surgical ventricular repair (SVR). We retrospectively examined the data of 137 patients with anteroapical LV aneurysm who underwent SVR.

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Introduction: Our goal was to compare the perceived readiness of graduating urologic residents and fellows to program directors (PDs) in U.S.-based postgraduate training programs.

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Objective: Acute kidney injury (AKI) requiring renal-replacement therapy (RRT) after heart transplantation (OHT) is common and impairs outcomes. This study aimed to identify independent donor and recipient risk factors associated with RRT after OHT.

Design: A retrospective data analysis.

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Background And Objective: Transgender and gender diverse (TGD) individuals may seek gender-affirming phalloplasty with specific functional goals, including erectile function sufficient for penetrative sexual intercourse. Individuals seeking penile prosthesis placement must accept the potential risks to their phallic anatomy.

Methods: We review current practices at our center and narrative review of literature discussing techniques for penile prosthesis and testicular prosthesis placement after phalloplasty and scrotoplasty, as well as surgical outcomes, and quality of life outcomes where available.

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Mouse models are a critical tool for studying human diseases, particularly developmental disorders. However, conventional approaches for phenotyping may fail to detect subtle defects throughout the developing mouse. Here we set out to establish single-cell RNA sequencing of the whole embryo as a scalable platform for the systematic phenotyping of mouse genetic models.

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Article Synopsis
  • Machine perfusion (EVMP) is a new method used for preserving solid organs, particularly in organ transplants, that improves upon traditional cold preservation by allowing for better monitoring and reducing damage during preservation.
  • This technique has broadened the donor pool by including organs from expanded criteria donors, such as those from circulatory death cases, and shows potential for treating and modifying diseased organs.
  • The review discusses key differences in EVMP applications for various organs (kidney, liver, lung, heart) and explores both the benefits and limitations of this technique, highlighting the need for interdisciplinary approaches in its development.
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Transgender and nonbinary (TGNB) patients are a population with unique urologic needs that are often overlooked in urologic training. Most urology residents think that learning to take care of this population is important in their training; however, there is much variation in this educational content within urology residency programs. This review provides information on the current state of teaching regarding the unique needs of caring for TGNB patients as urologists and overviews some basic principles that every urologist should know.

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Pulmonary hypertension worsens outcome in left heart disease. Stiffening of the pulmonary artery may drive this pathology by increasing right ventricular dysfunction and lung vascular remodeling. Here we show increased stiffness of pulmonary arteries from patients with left heart disease that correlates with impaired pulmonary hemodynamics.

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Background: Diabetic retinopathy (DR) is a leading cause of blindness. Our objective was to evaluate the performance of an artificial intelligence (AI) system integrated into a handheld smartphone-based retinal camera for DR screening using a single retinal image per eye.

Methods: Images were obtained from individuals with diabetes during a mass screening program for DR in Blumenau, Southern Brazil, conducted by trained operators.

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Wilson's disease (WD, MIM#277900) is an autosomal recessive disorder resulting in copper excess caused by biallelic variants in the ATP7B gene (MIM#606882) encoding a copper transporting P-type ATPase. ATP7B variants of unknown significance (VUS) are detected frequently, sometimes impeding a clear diagnosis. Functional analyses can help to classify these variants as benign or pathogenic.

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Background: A point mutation in sickle cell disease (SCD) alters one amino acid in the β-globin subunit of hemoglobin, with resultant anemia and multiorgan damage that typically shortens lifespan by decades. Because SCD is caused by a single mutation, and hematopoietic stem cells (HSCs) can be harvested, manipulated, and returned to an individual, it is an attractive target for gene correction.

Results: An optimized Cas9 ribonucleoprotein (RNP) with an ssDNA oligonucleotide donor together generated correction of at least one β-globin allele in more than 30% of long-term engrafting human HSCs.

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Faced with a chronic donor shortage, clinicians and regulators both struggle to develop allocation systems which balance the challenges of waitlist mortality and donor availability. Most organ allocation systems across the globe have prioritized transplantation of patients supported on temporary mechanical circulatory support (tMCS) with regional variations. There are concerns that this approach might not produce optimal outcomes and is not without major drawbacks including lack of strict criteria for tMCS as bridge strategy, choice of optimal devices and wait time on tMCS.

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Background: Surgical ventricular restoration (SVR) leads to functional improvement by volume reduction and restoration of left ventricular (LV) geometry. Our purpose was to refine the planning for SVR using cardiac computed tomography (CCT).

Methods: The possibility to anticipate the postoperative residual LV volume was assessed using CCT in 205 patients undergoing SVR combined with coronary artery bypass grafting (77%), mitral valve repair/replacement (19%) and LV thrombectomy (19%).

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Objectives: Parameters of left ventricular (LV) mechanics, obtained from speckle-tracking echocardiography (STE), were found to be of prognostic value in patients with heart failure and those who underwent cardiac surgery. This study aimed to assess the value of STE in patients scheduled to undergo surgical ventricular restoration (SVR).

Methods: A total of 158 consecutive patients with baseline STE who underwent SVR due to an LV anteroapical aneurysm were included in the analysis.

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Background: Despite the risk for complications, allograft surveillance after orthotopic heart transplantation (OHT) is performed by cardiac catheterization and biopsies. We investigated the diagnostic and prognostic value of a TDI-derived systolic wall motion analysis of the posterobasal wall of the left ventricle (Sm) as a screening modality in OHT aftercare.

Methods: We examined data of 210 eligible patients who underwent OHT between 2010 and 2020.

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Purpose: Lymphovascular invasion (LV1) and presence of > 50% embryonal carcinoma (> 50% EC) represent risk factors for progression in patients with clinical stage 1 (CS1) nonseminomatous (NS) testicular germ cell tumours. As serum levels of microRNA-371a-3p (M371) are capable of detecting small amounts of GCT, we evaluated if LV1 and > 50% EC are associated with M371 levels.

Methods: M371 serum levels were measured postoperatively in 153 NS CS1 patients and both pre- and postoperatively in 131 patients.

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Multiple genes are known to be associated with osteogenesis imperfecta (OI), a phenotypically and genetically heterogenous bone disorder, marked predominantly by low bone mineral density and increased risk of fractures. Recently, mutations affecting MESD, which encodes for a chaperone required for trafficking of the low-density lipoprotein receptors LRP5 and LRP6 in the endoplasmic reticulum, were described to cause autosomal-recessive OI XX in homozygous children. In the present study, whole-exome sequencing of three stillbirths in one family was performed to evaluate the presence of a hereditary disorder.

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