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Vascular reconstruction

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https://www.readbyqxmd.com/read/28651228/ante-situm-liver-resection-with-inferior-vena-cava-replacement-under-hypothermic-cardiopolmunary-bypass-for-hepatoblastoma-report-of-a-case-and-review-of-the-literature
#1
Roberta Angelico, Annalisa Passariello, Michele Pilato, Tommaso Cozzolino, Marcello Piazza, Roberto Miraglia, Paolo D'Angelo, Mariella Capasso, Maria Cristina Saffioti, Daniele Alberti, Marco Spada
INTRODUCTION: Hepatoblastoma with tumour thrombi extending into inferior-vena-cava and right atrium are often unresectable with an extremely poor prognosis. The surgical approach is technically challenging and might require major liver resection with vascular reconstruction and extracorporeal circulation. However, which is the best surgical technique is yet unclear. PRESENTATION OF CASE: A 11-months-old boy was referred for a right hepatic lobe mass(90×78mm) suspicious of hepatoblastoma with tumoral thrombi extending into the inferior-vena-cava and the right atrium, bilateral lung lesions and serum alpha-fetoprotein level of 50...
June 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28648958/use-of-a-three-dimensional-custom-made-porous-titanium-prosthesis-for-mandibular-body-reconstruction
#2
Q Qassemyar, N Assouly, S Temam, F Kolb
The progress made in recent years in the field of head and neck bone reconstruction is directly related to technological advancements made in computer-aided design and manufacturing (CAD/CAM) and three-dimensional printing in particular. Today these technologies are mainly used in mandibular reconstruction to manufacture aids for harvesting and shaping bone flaps. However problems remain when addressing patients with a contraindication to microsurgery who need extensive bone reconstruction. For these patients who cannot benefit from vascularized bone grafts, surgeons have to find alternative solutions aimed at maintaining best function and aesthetics...
June 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28648794/in-vitro-and-in-vivo-evaluation-of-a-coaxial-electrospun-small-caliber-vascular-graft-loaded-with-heparin-and-vegf
#3
Yuntao Hu, Xudong Pan, Jun Zheng, Weiguo Ma, Lizhong Sun
INTRODUCTION: To date, clinically available expanded polytetrafluoro- Ethylene (ePTFE) vascular grafts are suboptimal for reconstructing small Caliber (D<;6mm)arteries, owing to thrombosis in early and restenosis in; late stage. Our aim in this preliminary study was to fabricate a nano-fibrous vascular graft which was biofunctionalized with VEGF and hepa-rin. The short term performance was evaluated both in vitro and in vivo. METHOD: 4 mm caliber grafts were prepared by the coaxial-elctrospun technique, which consisted of poly (l-lactide-co-caprolactone) [P (LLA-CL)] collagen and elastin...
June 22, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28647799/a-case-of-atypical-type-a-thymoma-with-vascular-invasion-and-lung-metastasis
#4
Naoya Kawakita, Kazuya Kondo, Hiroaki Toba, Akiko Yoneda, Hiromitsu Takizawa, Akira Tangoku
We present a case of type A thymoma with invasion of the left brachiocephalic vein and lung metastases. An 84-year-old man underwent extended thymectomy combined with left brachiocephalic vein reconstruction and resection of a lung metastasis. Histological examination showed vascular invasion by the tumor. The lung metastasis had high mitotic activity and slight nuclear enlargement, the so-called "atypical" features, but the main part of the primary tumor did not. However, the intravascular portion of the tumor had "atypical" histological features like the lung metastasis...
June 24, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28647193/cryopreserved-venous-allograft-is-an-acceptable-conduit-in-patients-with-current-or-prior-angioaccess-graft-infection
#5
Michael P Harlander-Locke, Peter F Lawrence, Aamna Ali, Esther Bae, James Kohn, Christopher Abularrage, Michael Ricci, Gary W Lemmon, Sotero Peralta, Jeffrey Hsu
OBJECTIVE: The durability of cryopreserved allograft has been previously demonstrated in the setting of infection. The objective of this study was to examine the safety, efficacy, patency, and cost per day of graft patency associated with using cryopreserved allograft (vein and artery) for hemodialysis access in patients with no autogenous tissue for native fistula creation and with arteriovenous graft infection or in patients at high risk for infection. METHODS: Patients implanted with cryopreserved allograft for hemodialysis access between January 2004 and January 2014 were reviewed using a standardized, multi-institutional database that evaluated demographic, comorbidity, procedural, and outcomes data...
June 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646147/whole-organ-vascular-casting-and-microct-examination-of-the-human-placental-vascular-tree-reveals-novel-alterations-associated-with-pregnancy-disease
#6
Toluwalope O Junaid, Robert S Bradley, Rohan M Lewis, John D Aplin, Edward D Johnstone
Experimental methods that allow examination of the intact vascular network of large organs, such as the human placenta are limited, preventing adequate comparison of normal and abnormal vascular development in pregnancy disease. Our aims were (i) to devise an effective technique for three-dimensional analyses of human placental vessels; (ii) demonstrate the utility of the technique in the comparison of placental vessel networks in normal and fetal growth restriction (FGR) complicated pregnancies. Radiopaque plastic vessel networks of normal and FGR placentas (n = 12/group) were created by filling the vessels with resin and corroding the surrounding tissues...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645704/reconstruction-of-large-diaphyseal-bone-defect-by-simplified-bone-transport-over-nail-technique-a-7-case-series
#7
F Ferchaud, L Rony, F Ducellier, P Cronier, V Steiger, L Hubert
INTRODUCTION: Reconstruction of large diaphyseal bone defect is complex and the complications rate is high. This study aimed to assess a simplified technique of segmental bone transport by monorail external fixator over an intramedullary nail. MATERIAL AND METHOD: A prospective study included 7 patients:2 femoral and 5 tibial defects.Mean age was 31 years (range, 16-61 years). Mean follow-up was 62 months (range, 46-84 months). Defects were post-traumatic, with a mean length of 7...
June 20, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28634319/common-hepatic-artery-quadrifurcation-associated-with-right-hepatic-artery-from-superior-mesenteric-artery-during-laparoscopic-total-splenopancreasectomy
#8
Francesco Caruso, Giorgio Alessandri, Francesca Ciccarese, Giovanni Cesana, Matteo Uccelli, Giorgio Castello, Roberta Villa, Stefano Olmi
Hepatobiliopancreatic surgery is challenging becouse of the complexity of resections and reconstructions and variability of vascular anatomy. The arterial vascularization of the liver is susteined by the common hepatic artery (CHA) that originates from the celiac trunk (CT). The CHA bifurcates into the gastroduodenal artery (GDA) and proper hepatic artery (PHA) 0.5-1 cm medial to the common bile duct (CBD), and the PHA bifurcates into a right and a left branch at hepatic hilum. The most frequent variants are the right hepatic artery (RHA) from the superior mesenteric artery (SMA), the left hepatic artery (LHA) from the left gastric artery (LGA) or a combination of these two variants...
June 12, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28632515/p4-stump-approach-for-intraoperative-portal-vein-stenting-in-pediatric-living-donor-liver-transplantation-an-innovative-technique-for-a-challenging-problem
#9
Chao-Long Chen, Yu-Fan Cheng, Viola Huang, Ting-Lung Lin, Yi-Chia Chan, Hsin-You Ou, Chee-Chien Yong, Shih-Ho Wang, Chih-Che Lin
OBJECTIVE: The aim of this study was to evaluate the utility of the P4 stump stenting approach for treating portal vein (PV) complications in pediatric living donor liver transplantation (LDLT). BACKGROUND: PV complications cause significant morbidity and mortality in pediatric LDLT. Biliary atresia in the backdrop of pathological PV hypoplasia and sclerosis heightens the complexity of PV reconstruction. The authors developed a novel approach for intraoperative PV stenting via the graft segment 4 PV stump (P4 stump) to address this challenge...
June 19, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28632147/crossover-iliofemoral-bypass-graft-through-tension-free-abdominal-wall-repair-mesh
#10
Mircea Muresan, Ovidiu Jimborean, Gabriela Jimborean, Radu Neagoe, Serban Bancu, Muresan Simona, Cristian Borz
INTRODUCTION: In vascular surgery the crossover iliofemoral bypass grafting is a well-known surgical technique. In general surgery the repair of an abdominal defect using a Polypropylene mesh is also a standard procedure. A particular technique is defined by the performance of these 2 separate procedures inside a single operation in which the crossover arterial graft is directed from the retroperitoneal space toward the contra-lateral femoral bifurcation through a Polypropylene mesh which closes the musculoaponeurotic layers of the abdominal wall...
June 8, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28630754/nerve-injuries-of-the-upper-extremity-and-hand
#11
Lars B Dahlin, Mikael Wiberg
A nerve injury has a profound impact on the patient's daily life due to the impaired sensory and motor function, impaired dexterity, sensitivity to cold as well as eventual pain problems.To perform an appropriate treatment of nerve injuries, a correct diagnosis must be made, where the injury is properly classified, leading to an optimal surgical approach and technique, where timing of surgery is also important for the outcome.Knowledge about the nerve regeneration process, where delicate processes occur in neurons, non-neuronal cells (i...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28630724/labral-reconstruction-with-tendon-allograft-histological-findings-show-revascularization-at-8-weeks-from-implantation
#12
Esther Moya Gómez, Carlomagno Cardenas, Emmanuelle Astarita, Vittorio Bellotti, Francesc Tresserra, Luis Gerardo Natera, Manel Ribas
This description shows the histological findings of a peroneus brevis tendon allograft used for labral reconstruction, implanted 8 weeks before being retrieved due to a postoperative complication unrelated to the graft. As far as we have knowledge this is the first description about revascularization of an allograft used for hip labral reconstruction. The histological report of the removed peroneus brevis tendon allograft shows evidence of vascular ingrowth represented by small vessels with a thin muscular wall in all layers of the graft and cellular migration mainly represented by mature fibroblasts...
January 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28629642/splenic-vein-reconstruction-is-unnecessary-in-pancreatoduodenectomy-combined-with-resection-of-the-superior-mesenteric-vein-portal-vein-confluence-according-to-short-term-outcomes
#13
Haruyoshi Tanaka, Akimasa Nakao, Kenji Oshima, Kiyotsugu Iede, Yukiko Oshima, Hironobu Kobayashi, Yasunori Kimura
BACKGROUND: Superior mesenteric vein-portal vein confluence resection combined with pancreatoduodenectomy (SMPVrPD) is occasionally required for resection of pancreatic head tumors. It remains unclear whether such situations require splenic vein (SV) reconstruction for decompression of left-sided portal hypertension (LSPH). METHODS: The data from 93 of 104 patients who underwent pancreatoduodenectomy (PD) for pancreatic head malignancies were reviewed. Surgical outcomes in three groups-standard PD (control group), PD combined with vascular resection and SV preservation (SVp group), and SMPVrPD with SV resection (SVr group)-were compared...
June 16, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28629558/is-there-a-trend-in-ct-scanning-scaphoid-nonunions-for-deformity-assessment-a-systematic-review
#14
REVIEW
Paul W L Ten Berg, Marieke G A de Roo, Mario Maas, Simon D Strackee
PURPOSE: The effect of scaphoid nonunion deformity on wrist function is uncertain due to the lack of reliable imaging tools. Advanced three-dimensional (3-D) computed tomography (CT)-based imaging techniques may improve deformity assessment by using a mirrored image of the contralateral intact wrist as anatomic reference. The implementation of such techniques depends on the extent to which conventional CT is currently used in standard practice. The purpose of this systematic review of medical literature was to analyze the trend in CT scanning scaphoid nonunions, either unilaterally or bilaterally...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28628161/-detection-and-management-of-the-vascular-paths-in-the-lateral-sinus-wall-using-cone-beam-computed-tomography
#15
(no author information available yet)
OBJECTIVE: To detect the vascular paths in the lateral wall of maxillary sinus using cone beam computer tomography (CBCT), and to retrospect the surgical managements of avoiding bleeding complication during the lateral approach maxillary sinus elevation. METHODS: The documents of 71 consecutive patients with 81 sides maxillary sinus elevation surgery were collected. The vascular paths in the lateral wall of maxillary sinus were detected by the preoperative CBCT, and the messages about the vascular in surgical records were analyzed...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28627358/long-term-changes-in-bone-height-after-mandibular-reconstruction-using-a-free-fibula-graft-in-an-elderly-population
#16
Kosuke Ishikawa, Yuhei Yamamoto, Hiroshi Furukawa, Yoichi Ohiro, Akira Satoh, Toshihiko Hayashi
PURPOSE: This study evaluated short-term and long-term changes in bone height after mandibular reconstruction using an osteotomized fibula graft, with the aim of identifying factors associated with atrophy of the graft in an elderly population. PATIENTS AND METHODS: This retrospective study involved patients who underwent mandibular reconstruction using a free vascularized fibula graft from 2005 through 2015 and had at least 12 months of follow-up. Postoperative panoramic radiographs were used to measure bone height at standardized locations on each segment of the graft at 1 year postoperatively and at later follow-up...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28623684/chimeric-reverse-temporal-muscle-and-pericranial-flap-for-double-layer-closure-of-deep-facial-defects
#17
Said Algan, Onder Tan, Murat Kara, Akin Inaloz, Mehmet Akif Cakmak, Osman Enver Aydin
PURPOSE: Volumetric or multiplane defects of the upper and midface remain a challenge for reconstruction because of limited regional flap options. In this study, the authors harvested the reverse temporalis muscle flap and pericranial flap (RTMP flap) based on the same vascular pedicle, the superficial temporal artery, in a chimeric manner to obtain double-layer closure of deep facial defects. MATERIALS AND METHODS: This study was a prospective case series performed in the Department of Plastic Surgery of Ataturk University (Erzurum, Turkey)...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28618738/groin-and-thigh-reconstructions-with-pedicled-rectus-abdominis-myocutaneous-flaps
#18
Hakan Uzun, Ozan Bitik, Yahya Baltu, Mehmet Dadaci, Aycan Uğur Kayikçioğlu
BACKGROUND/AIM: Resection of tumors from the groin and thigh regions with safe margins often results in significant soft tissue defects, which preclude primary closure. This study presents a series of rectus abdominis myocutaneous flaps for irradiated thigh and groin wounds with the purpose of evaluating the efficacy and outcomes of these flaps in this population. MATERIALS AND METHODS: From 2008 to 2015, all patients who underwent resection of thigh or groin region tumors and reconstruction with an inferiorly based rectus abdominis myocutaneous flap were retrospectively identified...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28615830/pedicled-transverse-rectus-abdominis-myocutaneous-flap-a-method-for-tunnelling-with-dilson-luz-vascular-dilation-wands-for-breast-reconstruction
#19
Christopher Tam Song, Joshua Perrett, Terence Goh, Bien Keem Tan
No abstract text is available yet for this article.
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28615805/free-anteromedial-thigh-perforator-flap-complementing-and-completing-the-anterolateral-thigh-flap
#20
Dushyant Jaiswal, Amol Ghalme, Prabha Yadav, Vinaykant Shankhdhar, Akshay Deshpande
OBJECTIVE: Theobjective of this study was to determine the indications, utility, advantages and surgical approach for the anteromedial thigh (AMT) flap. MATERIALS AND METHODS: We reviewed the records of the patients in whom the AMT flap was used for head and neck reconstruction. We use an anterior approach to harvest the anterolateral thigh (ALT) flap with a non-committal straight line incision. This preserves both ALT and AMT flap territories intact, and further decision is based on the intraoperative anatomy of perforator and pedicle...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
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