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Frozen Section Doughnuts Obtained with a 5 mm Stapling Device Improve Outcomes in Laparoscopic Endorectal Pull-Throughs for Hirschsprung's Disease.
J Laparoendosc Adv Surg Tech A
January 2025
The Department of Paediatric Surgery, The Royal Hospital for Children Glasgow, Glasgow, United Kingdom.
A primary pull-through for Hirschsprung's disease (HD) requires confirmation of normal ganglionic bowel by intraoperative biopsies to determine the level of resection. Despite this, aganglionic bowel that is not fully resected (so-called "transition zone pull-throughs") is reported in 15%-19% of patients. We hypothesize that this may result from insufficient biopsies sent for intraoperative diagnosis.
View Article and Find Full Text PDFReduction of ischemic time using the pull-through technique for scapular free flap.
Oral Maxillofac Surg
January 2025
Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Purpose: Current scapular free flap (SFF) harvest in mandibular reconstruction often requires repositioning, hindering simultaneous harvest and resection and potentially increasing ischemic time. This study evaluated the efficacy of the pull-through technique (PTT) for SFF harvest, aiming to reduce ischemic time during mandibular segmental resection.
Methods: A retrospective analysis was conducted on 24 patients who underwent mandibular reconstruction using SFF at two maxillofacial surgery departments between January 2015 and May 2022.
Three-dimensional spiral-shaping method of microcatheter for paraclinoid aneurysms: assessment using silicone models.
Nagoya J Med Sci
November 2024
Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Selecting an appropriate microcatheter tip shape for paraclinoid aneurysms is difficult. Therefore, we devised an original simple and uniform three-dimensional (3D) spiral-shaping method of microcatheter and validated the characteristics and usefulness of this method for coil embolization of paraclinoid aneurysms using patient-specific silicone models. These silicone models were produced based on clinical data from four patients with four paraclinoid aneurysms that underwent endovascular treatment using the 3D spiral-shaping method.
View Article and Find Full Text PDFFully Integrated MEMS Micropump and Miniaturized Mass Flow Sensor as Basic Components for a Microdosing System.
Micromachines (Basel)
November 2024
Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, 80333 Munich, Germany.
Despite major advances in the field of actuator technology for microsystems, miniaturized microfluidic actuation systems for mobile devices are still not common in the market. We present a micropump concept and an associated mass flow sensor design, which, in combination, have the potential to form the basis for an integrated microfluidic development platform for microfluidic systems in general and microdosing systems in particular. The micropump combines the use of active valves with an electrostatic drive principle for the pump membrane and the valves, respectively.
View Article and Find Full Text PDFA retrospective cohort analysis of alignment parameters for spinal tumor patients with instrumentation at the cervicothoracic junction.
N Am Spine Soc J
December 2024
Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence, RI, United States.
Background: Previous research on spinal alignment and postoperative outcomes after cervical and upper thoracic fixation has suggested that clinical and patient-reported outcomes are improved when certain anatomical parameters are maintained. These parameters include the cervical sagittal vertical axis (cSVA), C2 and T1 slopes, and cervical lordosis (CL). For patients with primary and metastatic tumors involving the subaxial cervical and/or upper thoracic spine, there is minimal guidance on how to apply these parameters.
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