Publications by authors named "H Johannes"

In this work, we report on the application of the polarization modulated spectroscopic ellipsometry-based surface plasmon resonance method for sensitive detection of microorganisms in Kretschmann configuration. So far, rotating analyzer and single wavelength polarization modulation methods have widely been investigated for phase sensitive surface plasmon resonance measurement. In this study, a much simpler optical setup relying on fast electro-optic phase modulator crystals is introduced for bacteria detection.

View Article and Find Full Text PDF

Objective: Cancer patients are often overwhelmed when being informed about clinical trials. However, there is a lack of evidence-based strategies to improve physician-patient communication in this area. This study assessed the experiences and needs of cancer patients and their support persons (SPs) during the informed consent (IC) process prior to participation in clinical trials.

View Article and Find Full Text PDF
Article Synopsis
  • A study aimed to investigate long-term outcomes of minimally invasive mitral valve surgery (MVS) for elderly patients (≥70 years) with secondary mitral valve regurgitation (MR), especially those with heart failure and co-morbidities.
  • The research analyzed a group of 67 patients who underwent MVS through different surgical approaches, focusing on survival rates, operational success, and safety outcomes.
  • Results showed promising medium-term effects of MVS, but the study highlighted the need for more data on long-term effectiveness to determine the best therapy for these high-risk patients.
View Article and Find Full Text PDF

Backgrounds/aims: Liver diseases may affect the liver heterogeneously, especially in autoimmune hepatitis (AIH). Hence, the aim of this study was to assess the added benefit of double biopsy of both liver lobes during minilaparoscopy in guiding treatment decisions in patients with AIH.

Methods: We identified all patients with AIH or variant syndromes (AIH/PBC and AIH/PSC) at our center, who underwent a double biopsy of both liver lobes via minilaparoscopy between 01/2016 and 12/2020.

View Article and Find Full Text PDF