Purpose: Percutaneous nephrolithotomy (PCNL) as an established procedure for treatment of large kidney stones, can trigger life threatening complications. Postoperative hemorrhaging is one of the main complications of PCNL. This study investigates the effectiveness of balloon nephrostomy in reducing hemorrhage in the postoperative phase of PCNL.
View Article and Find Full Text PDFRadio-frequency orbital angular momentum (RF-OAM) mode multiplexing has received increasing attention in next-generation (6G) wireless communication as a new spatial multiplexing dimension to further extend data capacity. In particular, the circular antenna array (CAA) based RF-OAM generation using photonic methods is a promising approach due to its flexible reconfigurability, low propagation loss, high operating bandwidth, and high pattern quality. However, most current reports focus either on the bulk optics-based implementations or on band-limited delay line-based approaches.
View Article and Find Full Text PDFThis study aimed to determine the potential effect of genetic factors and positive family history on the familial aggregation of urolithiasis in Iran. Of the total 44,186 participants in the Iran National Stone Survey (INSS) database, 34,953 individuals who were members of 8629 nuclear families were included in this study. The mean prevalence of urolithiasis was 5.
View Article and Find Full Text PDFObjective: This study aimed to evaluate the potential risk factors of lifetime urolithiasis occurrence on a nationwide scale in Iran.
Methods: All data regarding urinary stone events were extracted from the cross-sectional Iran National Stone Survey (INSS) study, and the possible determinants of urolithiasis incidence were evaluated.
Results: Our multivariable logistic regression suggested that while older age at presentation, male sex, and a positive family history of urolithiasis in either of the patient's parents or siblings were all significantly associated with an increased odds of lifetime urolithiasis occurrence (all P < .