70 research outputs found
Interactive Assembly and Animation of 3D Digital Garments
We present a novel real-time tool for sewing together 2D patterns, enabling quick assembly of visually plausible, interactively animated garments for virtual characters. The process is assisted by ad-hoc visual hints and allows designers to import 2D patterns from any CAD-tool, connect them using seams around a 3D character with any body type, and assess the overall quality during the character animation. The cloth is numerically simulated including robust modeling of contact of the cloth with itself and with the character\u27s body. Overall, our tool allows for fast prototyping of virtual garments, achieving immediate feedback on their behaviour and visual quality on an animated character, in effect speeding up the content production pipeline for visual effects applications involving clothed characters
A right colonic volvulus requiring extensive colectomy in an infant with trisomy 13
AbstractColonic volvulus is a rare surgical emergency condition in children. Only approximately 40 children with cecal volvulus have been reported in English literature in the past 50 years. Among these, a right colonic volvulus involving the long segment from the ileal end to the transverse colon, as in our case, is limited to a few reports. Neurodevelopmental delay and a history of chronic constipation have been reported as common associated disorders. This is the first report about a case of right colonic volvulus in an infant with trisomy 13 who required extensive colectomy during an emergency laparotomy
Ubiquitous organic molecule-based free-standing nanowires with ultra-high aspect ratios
ごくありふれた有機分子からナノ細線をつくり立たせて埋めつくす --立体電子回路や超高感度センサーへ--. 京都大学プレスリリース. 2021-06-30.The critical dimension of semiconductor devices is approaching the single-nm regime, and a variety of practical devices of this scale are targeted for production. Planar structures of nano-devices are still the center of fabrication techniques, which limit further integration of devices into a chip. Extension into 3D space is a promising strategy for future; however, the surface interaction in 3D nanospace make it hard to integrate nanostructures with ultrahigh aspect ratios. Here we report a unique technique using high-energy charged particles to produce free-standing 1D organic nanostructures with high aspect ratios over 100 and controlled number density. Along the straight trajectory of particles penetrating the films of various sublimable organic molecules, 1D nanowires were formed with approximately 10~15 nm thickness and controlled length. An all-dry process was developed to isolate the nanowires, and planar or coaxial heterojunction structures were built into the nanowires. Electrical and structural functions of the developed standing nanowire arrays were investigated, demonstrating the potential of the present ultrathin organic nanowire systems
Sequential therapies after atezolizumab plus bevacizumab or lenvatinib first-line treatments in hepatocellular carcinoma patients
Introduction: The aim of this retrospective proof-of-concept study was to compare different second-line treatments for patients with hepatocellular carcinoma and progressive disease (PD) after first-line lenvatinib or atezolizumab plus bevacizumab.Materials and methods: A total of 1381 patients had PD at first-line therapy. 917 patients received lenvatinib as first-line treatment, and 464 patients atezolizumab plus bevacizumab as first-line.Results: 49.6% of PD patients received a second-line therapy without any statistical difference in overall survival (OS) between lenvatinib (20.6 months) and atezolizumab plus bev-acizumab first-line (15.7 months; p = 0.12; hazard ratio [HR] = 0.80). After lenvatinib first-line, there wasn't any statistical difference between second-line therapy subgroups (p = 0.27; sorafenib HR: 1; immunotherapy HR: 0.69; other therapies HR: 0.85). Patients who under-went trans-arterial chemo-embolization (TACE) had a significative longer OS than patients who received sorafenib (24.7 versus 15.8 months, p < 0.01; HR = 0.64). After atezolizumab plus bevacizumab first-line, there was a statistical difference between second-line therapy subgroups (p < 0.01; sorafenib HR: 1; lenvatinib HR: 0.50; cabozantinib HR: 1.29; other therapies HR: 0.54). Patients who received lenvatinib (17.0 months) and those who under-went TACE (15.9 months) had a significative longer OS than patients treated with sorafenib (14.2 months; respectively, p = 0.01; HR = 0.45, and p < 0.05; HR = 0.46).Conclusion: Approximately half of patients receiving first-line lenvatinib or atezolizumab plus bevacizumab access second-line treatment. Our data suggest that in patients progressed to atezolizumab plus bevacizumab, the systemic therapy able to achieve the longest survival is lenvatinib, while in patients progressed to lenvatinib, the systemic therapy able to achieve the longest survival is immunotherapy
Adverse Events as Potential Predictive Factors of Activity in Patients with Advanced HCC Treated with Atezolizumab Plus Bevacizumab
Background In the context of patients with hepatocellular carcinoma (HCC) treated with systemic therapy, the correlation between the appearance of adverse events (AEs) and reported efficacy outcomes is well-known and widely investigated. From other pathological settings, we are aware of the prognostic and predictive value of the occurrence of immune-related AEs in patients treated with immune-checkpoint inhibitors. Objective This retrospective multicenter real-world study aims to investigate the potential prognostic value of AEs in patients with HCC treated with atezolizumab plus bevacizumab in the first-line setting. Patients and methods The study population consisted of 823 patients from five countries (Italy, Germany, Portugal, Japan, and the Republic of Korea). Results Of the patients, 73.3% presented at least one AE during the study period. The most common AEs were proteinuria (29.6%), arterial hypertension (27.2%), and fatigue (26.0%). In all, 17.3% of the AEs were grade (G) 3. One death due to bleeding was reported. The multivariate analysis confirmed the appearance of decreased appetite G < 2 [versus G >= 2; hazard ratio (HR) 0.60; 95% confidence interval (CI) 0.13-0.90; p < 0.01] and immunotoxicity G < 2 (versus G >= 2; HR: 0.70; 95% CI 0.24-0.99; p = 0.04) as independent prognostic factors for overall survival, and the appearance of decreased appetite G < 2 (versus G >= 2; HR: 0.73; 95% CI 0.43-0.95; p = 0.01), diarrhea (yes versus no; HR: 0.57, 95% CI 0.38-0.85; p = 0.01), fatigue (yes versus no; HR: 0.82, 95% CI 0.65-0.95; p < 0.01), arterial hypertension G < 2 (versus G >= 2; HR: 0.68, 95% CI 0.52-0.87; p < 0.01), and proteinuria (yes versus no; HR: 0.79, 95% CI 0.64-0.98; p = 0.03) as independent prognostic factors for progression-free survival. Conclusions As demonstrated for other therapies, there is also a correlation between the occurrence of AEs and outcomes for patients with HCC for the combination of atezolizumab plus bevacizumab
A rare case of a toddler with unilateral cryptorchidism‐related cranial suspensory ligament remnant
Key clinical message Several animal experiment studies have shown that insufficient testicular descent to the scrotum can be caused by persistence of cranial suspensory ligament (CSL). We report a case of right cryptorchidism in a male toddler surgically treated with an orchidopexy possibly associated with CSL persistence based on intraoperative and pathological findings. This case would be a precious source to further investigate the etiopathogenesis of cryptorchidism. Abstract The CSL anchors embryonic gonads to the dorsal abdominal wall during antenatal mammalian development. Although its persistence appears to cause cryptorchidism in animal models, it has never been proven in humans. A 1‐year‐old boy with right cryptorchidism underwent right orchidopexy. Intraoperatively, a band‐like structure running from the right testis into the retroperitoneum and up to the right side of the liver was noticed and resected. The pathological findings of the specimen showed fibrous connective tissues, smooth muscles, and blood vessels but no tissues suggestive of a testis, a spermatic cord, an epididymis, or liver. Immunohistochemical analysis for an androgen receptor antibody did not detect any signal in the specimen. The right cryptorchidism in this case was possibly caused by CSL persistence, which is the first such human case, to our knowledge
Deterioration of autoimmune condition associated with repeated injection of dextranomer/hyaluronic acid copolymer: A case report
A 6-year-old girl underwent ureterocystoneostomy (UCN) because of left flank pain due to delayed onset of ureteral stenosis one and a half years after endoscopic dextranomer/hyaluronic acid copolymer (Deflux) injection for the treatment of vesicoureteral reflux (VUR). Histopathological examination indicated chronic inflammation with abundant eosinophils characteristic of a reaction to Deflux. Several autoimmune diseases developed during the treatment for ureteral stenosis. First, 2 weeks prior to the onset of left flank pain, she was diagnosed as having systemic lupus erythematosus. Finally, she died of pulmonary hemorrhage due to thrombotic thrombocytopenic purpura 4 months after UCN. The fatal outcome in this case was suspected to be caused by autoimmune syndrome induced by adjuvants, which in this case was the hyaluronic acid polymer injected into the ureteric orifice for the treatment of VUR
Laryngo fiberscopy-guided suspension procedure for an ectopic lingual thyroid obstructing airway
Abstract Background Currently, there is no consensus regarding the optimal therapeutic strategy for the management of an ectopic lingual thyroid. A surgical approach is suggested when airway obstructive symptoms cannot be tolerated at all, or when bleeding or malignancy occurs. However, for patients in whom ectopic thyroid is the only functioning thyroid tissue, complete surgical excision needs to be followed by lifelong hormone replacement therapy. We report the case of an infant with ectopic lingual thyroid obstructing the airway that was treated using our novel surgical procedure. Case presentation A 10-day-old male infant presented with symptoms of airway obstruction and subclinical hypothyroidism. Imaging tests revealed an ectopic lingual thyroid and the absence of a normal pretracheal thyroid gland. We administered oral levothyroxine to lower his thyroid stimulating hormone (TSH) level and reduce the volume of the lingual mass; however, his airway symptoms did not improve. Subsequently, we performed a surgical intervention when he was 2 months old. We split the hyoid bone, and then suspended the lingual thyroid by suturing it to the hyoid bone to elevate the epiglottis. We confirmed the degree of suspension using intraoperative laryngo fiberscopy. After the surgery, the symptoms of airway obstruction were resolved and the patient was clinically euthyroid on low-dose oral levothyroxine. Conclusions Our laryngo fiberscopy-guided suspension procedure can be an effective surgical procedure for the treatment of ectopic thyroid. This relatively simple surgical procedure could completely preserve the patient’s thyroid tissue and resolve airway obstruction
Thoracoscopic resection of an unusually hypervascular extra-lobar pulmonary sequestration that resembled an arteriovenous malformation in a 2-year-old boy
There is a risk for high-output congestive heart failure to be associated with an extra-lobar pulmonary sequestration (ELS) when there is left-to-left shunting caused by a large systemic arterial supply to a sequestration and venous drainage via the pulmonary veins into the left atrium. We present a 2-year-old boy who underwent thoracoscopic resection of an unusually hypervascular right ELS with a high output left-to-left shunt between the aorta and the left atrium via a pulmonary vein. This case is of particular interest because computed tomographic angiography identified a hypervascular nidus with indistinct borders between arterial and venous vessels suggestive of an arteriovenous malformation
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