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Objective: To compare the effects of cartilage-perichondrium palisade complex and cartilage-perichondrium horseshoe complex in tympanoplasty for large tympanic membrane perforation.
Methods: Nineteen patients (19 ears) undergoing tympanoplasty with cartilage-perichondrium palisade complex and 20 patients (20 ears) with cartilage-perichondrium horseshoe complex were compared for postoperative hearing and closure rate of tympanic membrane perforation.
Results: The closure rates of the tympanic membrane were all 100% in both groups 3 months after the operation, while tympanoplasty with cartilage- perichondrium horseshoe complex resulted in significantly greater improvement of the postoperative air-bone gap in speech frequency.
Conclusion: Both of the two auricular cartilage-perichondrium complexes produced good effects for repair large tympanic membrane perforation, but cartilage-perichondrium horseshoe complex can achieve better results in speech frequency.
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Infect Dis Model
December 2025
Department of Mathematics and Statistics, York University, Toronto, ON, M3J 1P3, Canada.
We present an exploration of advanced stochastic simulation techniques for state-space models, with a specific focus on their applications in infectious disease modelling. Utilizing COVID-19 surveillance data from the province of Ontario, Canada, we employ Markov Chain Monte Carlo (MCMC) and Sequential Monte Carlo (SMC) methods to detect structural changes and pre-dict future trends in case counts. Our approach begins with the application of a Kalman smoothing technique, integrated with MCMC for state sampling within local level and seasonal models, alongside Bayesian inference for non-linear dynamic regression models.
View Article and Find Full Text PDFThe Spigelian hernia-cryptorchidism syndrome is a rare clinical entity observed in male neonates. It is characterized by a congenital defect in the Spigelian fascia, resulting in a hernia along the semilunar line, often associated with intestinal obstruction. A hallmark feature is the presence of an ectopic testis, typically located within or immediately adjacent to the hernia sac.
View Article and Find Full Text PDFUrol Case Rep
September 2025
Department of Urology, Division of Pediatric Urology, King Faisal Medical Complex (KFMC), Al Taif, Saudi Arabia.
Horseshoe kidney (HSK) is not an uncommon genitourinary anomaly, with incidence of about 1 in 400. Males are more commonly affected than females. HSK with a single ureter is extremely rare.
View Article and Find Full Text PDFEvol Dev
September 2025
Invertebrate Paleontology Division, Yale Peabody Museum, New Haven, Connecticut, USA.
Developmental changes in animals reflect important behavioral, biological, and ecological shifts. Allometric adjustments in arthropods, specifically, are associated with changes in sexual maturity or alterations in life mode. Examining post-embryological allometry of the American horseshoe crab-Limulus polyphemus-here evidences early shifts in prosomal development, later changes in thoracetronic size, and possible modularity across exoskeletal sections.
View Article and Find Full Text PDFInt Braz J Urol
August 2025
Department of Urology, Rush University Medical Center, Chicago, IL, USA.
Purpose: Xanthogranulomatous pyelonephritis (XGP) represents an uncommon and challenging clinical scenario (1). XGP in a horseshoe kidney poses additional surgical complexity due to the anatomical anomaly (2). Robot-assisted radical nephrectomy (RARN) for XGP has been rarely reported (3), and single-port (SP) RARN via a retroperitoneal lower anterior approach (LAA) represents a recent innovation in the field (4).
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