Utility of Machine Learning Models to Predict Lymph Node Metastasis of Japanese Localized Prostate Cancer.

Background/objectives: Extended pelvic lymph node dissection is a crucial surgical technique for managing intermediate to high-risk prostate cancer. Accurately predicting lymph node metastasis before surgery can minimize unnecessary lymph node dissections and their associated complications. This study assessed the efficacy of various machine learning models for predicting lymph node metastasis in a cohort of Japanese patients who underwent robot-assisted laparoscopic radical prostatectomy.

Impact of presurgical systemic therapy on perioperative outcomes of renal cell carcinoma with inferior vena cava tumor thrombus.

Background: Surgery for inferior vena cava tumor thrombus (IVC-TT) in patients with renal cell carcinoma (RCC) is highly invasive and is associated with perioperative mortality. This study aimed to assess the efficacy of presurgical systemic therapy (PT) on perioperative outcomes in RCC patients with IVC-TT.

Methods: A total of 68 patients with right-sided RCC and level ≥ II IVC-TT were included in this study.

Impact of CT-angiography derived plaque characteristics on cardiac events in patients with a negative invasive fractional flow reserve.

Background: Fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) for chronic coronary syndromes (CCS) improves outcomes compared with angiography-guided PCI, however cardiac events still occur during long-term follow-up of FFR-negative patients. In the PREVENT study preventive PCI reduced cardiac-events in lesions which were FFR-negative (FFR > 0.80) and had intracoronary imaging defined vulnerable plaque.

Functional Morphology of Myoepithelial Cells in the Rat Salivary Glands: a Review.

Background: The acini, the secretory endpieces of the salivary glands, are composed of serous and/or mucous acinar cells and surrounded by myoepithelial cells. Myoepithelial cells are multipolar, stellate cells with long processes encircling the acini and intercalated ducts. These cells contract to facilitate salivary secretion and transport.