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Vascular reconstruction

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https://www.readbyqxmd.com/read/29352588/pulmonary-reinterventions-after-complete-unifocalization-and-repair-in-infants-and-young-children-with-tetralogy-of-fallot-with-major-aortopulmonary-collaterals
#1
Holly Bauser-Heaton, Alejandro Borquez, Ritu Asija, Lisa Wise-Faberowski, Yulin Zhang, Laura Downey, Stanton B Perry, Andrew Koth, Lynn F Peng, Claudia A Algaze, Frank L Hanley, Doff B McElhinney
BACKGROUND: Our institutional approach to tetralogy of Fallot (TOF) with major aortopulmonary collaterals (MAPCAs) emphasizes unifocalization and augmentation of the reconstructed pulmonary arterial (PA) circulation and complete intracardiac repair in infancy, usually in a single procedure. This approach yields a high rate of complete repair with excellent survival and low right ventricular (RV) pressure. However, little is known about remodeling of the unifocalized and reconstructed pulmonary circulation or about reinterventions on the reconstructed PAs or the RV outflow tract conduit...
December 13, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29352347/autologous-cell-based-therapy-for-treatment-of-large-bone-defects-from-bench-to-bedside
#2
REVIEW
R Verboket, M Leiblein, C Seebach, C Nau, M Janko, M Bellen, H Bönig, D Henrich, I Marzi
OBJECTIVES: Reconstruction of long segmental bone defects is demanding for patients and surgeons, and associated with long-term treatment periods and substantial complication rates in addition to high costs. While defects up to 4-5 cm length might be filled up with autologous bone graft, heterologous bone from cadavers, or artificial bone graft substitutes, current options to reconstruct bone defects greater than 5 cm consist of either vascularized free bone transfers, the Masquelet technique or the Ilizarov distraction osteogenesis...
January 19, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29352303/perfusion-decellularization-of-a-human-limb-a-novel-platform-for-composite-tissue-engineering-and-reconstructive-surgery
#3
Mattia Francesco Maria Gerli, Jacques Paul Guyette, Daniele Evangelista-Leite, Brian Burns Ghoshhajra, Harald Christian Ott
Muscle and fasciocutaneous flaps taken from autologous donor sites are currently the most utilized approach for trauma repair, accounting annually for 4.5 million procedures in the US alone. However, the donor tissue size is limited and the complications related to these surgical techniques lead to morbidities, often involving the donor sites. Alternatively, recent reports indicated that extracellular matrix (ECM) scaffolds boost the regenerative potential of the injured site, as shown in a small cohort of volumetric muscle loss patients...
2018: PloS One
https://www.readbyqxmd.com/read/29351682/radial-artery-fascial-flow-through-free-flap-for-combined-revascularization-in-moyamoya-disease
#4
Jonathan Russin, Joseph Carey
BACKGROUND: Free flaps are commonly used by other surgical subspecialties for soft tissue reconstruction and revascularization. Cranial applications of these flaps have been limited to only a single case report. OBJECTIVE: To present a new technique for combined revascularization in moyamoya disease using a flow-through free flap. METHODS: Data were obtained from an Institutional Review Board-approved, prospectively maintained database with informed consent from the patient...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29350189/detection-of-thoracic-vascular-structures-by-electrical-impedance-tomography-a-systematic-assessment-of-prominence-peak-analysis-of-impedance-changes
#5
Karin Henriette Wodack, Sarah Buehler, Sarah A Nishimoto, Michael F Graessler, Christoph R Behem, Andreas Daniel Waldmann, Beat Mueller, Stephan H Böhm, Eugenijus Kaniusas, Florian Thürk, Alexander Maerz, Constantin J C Trepte, Daniel A Reuter
Electrical impedance tomography (EIT) is a noninvasive and radiation free bedside monitoring technology, primarily used to monitor lung function. First experimental data shows that the descending aorta can be detected at different thoracic heights and might allow the assessment of central hemodynamics, i.e. stroke volume and pulse transit time. Approach: First, the feasibility of localizing small non-conductive objects within a saline phantom model was evaluated. Second, this result was utilized for the detection of the aorta by EIT in ten anesthetized pigs in with comparison to thoracic computer tomography (CT)...
January 19, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29349542/laparoscopic-pancreaticoduodenectomy-with-reconstruction-of-the-mesentericoportal-vein-with-the-parietal-peritoneum-and-the-falciform-ligament
#6
Safi Dokmak, Béatrice Aussilhou, Mélanie Calmels, Houcine Maghrebi, Fadhel Samir Ftériche, Olivier Soubrane, Alain Sauvanet
BACKGROUND: With the improvement of the surgical technique of Laparoscopic pancreaticoduodenectomy (LPD), indications will be extended to patients with vascular invasion. With LPD, vascular grafts for reconstruction are more frequently needed because adequate mobilization is not always done and vascular grafts can safely facilitate reconstruction. We describe our experience of reconstruction with the falciform ligament. METHODS: Venous reconstruction is performed after removal of the specimen...
January 18, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29349400/single-session-total-endovascular-iliocaval-reconstruction-with-stent-grafting-for-the-treatment-of-inferior-vena-cava-agenesis-and-concurrent-iliac-venous-aneurysm-rupture
#7
Jeffrey Forris Beecham Chick, Minhaj S Khaja, Steven Han, Kyle J Cooper, J Matthew Meadows, David M Williams
Iliac venous aneurysms are rare vascular abnormalities that may be manifested by abdominal masses, pelvic tenderness, or hypovolemia and may lead to rupture, thrombosis, pulmonary embolism, paradoxical embolism, or death. Inferior vena cava agenesis, like venous aneurysm, is an uncommon condition that may present with deep venous thrombosis. This report describes a patient with inferior vena cava agenesis and iliac venous aneurysm rupture treated with emergent iliocaval reconstruction and endovascular stent graft placement...
September 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349375/the-use-of-bovine-pericardial-patch-for-vascular-reconstruction%C3%A2-in-infected-fields-for-transplant-recipients
#8
Sandra Garcia Aroz, Mario Spaggiari, Hoonbae Jeon, Jose Oberholzer, Enrico Benedetti, Ivo Tzvetanov
Infectious vascular complications affecting transplant recipients may lead to severe morbidity and graft loss. This is a retrospective review of vascular repair with bovine pericardial patch (BPP) in infected fields for immunosuppressed patients. BPP was used as either a patch or an interposition graft. Five cases of arterial reconstruction in infected fields using BPP were performed. There were no complications related to bleeding, thrombosis, or recurrent infection. In our limited experience, the use of BPP as a vascular patch is successful, and it represents an alternative when vascular reconstruction is needed in the context of infected fields...
March 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349048/versatility-of-modified-nasolabial-flap-in-oral-and-maxillofacial-surgery
#9
Geeti Vajdi Mitra, Sarwpriya Sharma Bajaj, Sushmitha Rajmohan, Tejas Motiwale
Background: To evaluate the versatility and reach of modified nasolabial flap used in reconstruction of defects created in and around the oral cavity. Methods: A total number of 20 cases were selected. Out of which 13 were males and 7 females. The age of these patients ranged from 24-63 years. 29 modified nasolabial flaps were raised in twenty patients. Based on clinical and histopathological examination, out of 20 patients, 14 patients were diagnosed with oral submucous fibrosis, 3 with verrucous carcinoma, 1 with squamous papilloma, 1 with oro-antral fistula and 1 with traumatic loss of lower lip...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29347992/anatomical-relation-between-s1-sacroiliac-screws-entrance-points-and-superior-gluteal-artery
#10
Yong Zhao, Libo You, Wei Lian, Dexin Zou, Shengjie Dong, Tao Sun, Shudong Zhang, Dan Wang, Jingning Li, Wenliang Li, Yuchi Zhao
BACKGROUND: To conduct radiologic anatomical study on the relation between S1 sacroiliac screws' entry points and the route of the pelvic outer superior gluteal artery branches with the aim to provide the anatomical basis and technical reference for the avoidance of damage to the superior gluteal artery during the horizontal sacroiliac screw placement. METHODS: Superior gluteal artery CTA (CT angiography) vascular imaging of 74 healthy adults (37 women and 37 men) was done with 128-slice spiral CT (computed tomography)...
January 18, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29346011/minimally-invasive-management-of-severe-aortoiliac-occlusive-disease
#11
Luigi Pascarella, Maen Aboul Hosn
BACKGROUND: Peripheral arterial disease (PAD) is a complex and highly prevalent pathology. It has been estimated that ∼8.5 million people in the United States are affected by PAD, of which 12%-20% are older than age 60. The TransAtlantic Inter-Society Consensus (TASC) guidelines classified aortoiliac atherosclerotic disease based on morphology and level of lesions. TASC II guidelines recommend bilateral surgical bypass to the femoral arteries for TASC II C and D lesions. The aortobifemoral bypass (ABF) has been considered the gold standard in the treatment of aortoiliac occlusive disease (AIOD)...
January 18, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29343893/assessment-of-perfusion-of-free-flaps-used-in-head-and-neck-reconstruction-using-pulsatility-index
#12
Akshay Kapoor, Malay Karmakar, Collin Roy, Kaushal Priya Anand
Objective: To detect venous or arterial obstruction in the pedicle of a free flap we can monitor resistance in the flap bed which is reflected in Pulsatility Index (PI) Therefore if we detect change in the values of the PI in these flaps then we can detect complications in flap due to vascular insufficiency early. Materials and Methods: Seven patients of Free Fibular Flap Reconstruction and ten patients of Free Radial Forearm Flap reconstruction were evaluated over a period of 18 months...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29341375/transparency-enhancing-technology-allows-three-dimensional-assessment-of-gastrointestinal-mucosa-a-porcine-model
#13
Hiroya Mizutani, Satoshi Ono, Tetsuo Ushiku, Yotaro Kudo, Masako Ikemura, Natsuko Kageyama, Nobutake Yamamichi, Mitsuhiro Fujishiro, Takao Someya, Masashi Fukayama, Kazuhiko Koike, Hiroshi Onodera
Although high-resolution three-dimensional imaging of endoscopically resected gastrointestinal specimens can help elucidating morphological features of gastrointestinal mucosa or tumor, there are no established methods to achieve this without breaking specimens apart. We evaluated the utility of transparency-enhancing technology for three-dimensional assessment of gastrointestinal mucosa in porcine models. Esophagus, stomach, and colon mucosa samples obtained from a sacrificed swine were formalin-fixed and paraffin-embedded, and subsequently deparaffinized for analysis...
January 17, 2018: Pathology International
https://www.readbyqxmd.com/read/29339717/complex-reconstruction-with-flaps-after-abdominoperineal-resection-and-groin-dissection-for-anal-squamous-cell-carcinoma-a-difficult-case-involving-many-specialities
#14
Claudia Reali, Richard Guy, Christopher R Darby, Lucy Cogswell, Roel Hompes
BACKGROUND Anal squamous cell carcinoma accounts for about 2-4% of all lower gastrointestinal malignancies, with a distant disease reported in less than 5%. Although surgical treatment is rarely necessary, this often involve large dissections and difficult reconstructive procedures. CASE REPORT We present a complex but successful case of double-flap reconstruction after abdominoperineal resection and groin dissection for anal squamous cell carcinoma (cT3N3M0) with metastatic right inguinal lymph nodes and ipsilateral threatening of femoral vessels...
January 17, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29339213/nrp-2-in-tumor-lymphangiogenesis-and-lymphatic-metastasis
#15
Jingwen Wang, Yuhong Huang, Jun Zhang, Boyi Xing, Wei Xuan, Honghai Wang, He Huang, Jiayu Yang, Jianwu Tang
Neuropilin-2 (NRP-2) not only functions as a receptor for semaphorins, a family of neural axon guidance factors, but also interacts with VEGFs, a family of vascular endothelial growth factors. As an independent receptor or a co-receptor, NRP-2 binds to ligands VEGF-C/D, activates the VEGF-C/D-NRP-2 signaling axis, and further regulates lymphangiogenesis-associated factors in both lymphatic endothelial cells (LECs) and some tumor cells during tumor progression. Via VEGF-C/D-NRP-2 axis, NRP-2 induces LEC proliferation, reconstruction and lymphangiogenesis and subsequently promotes tumor cell migration, invasion and lymphatic metastasis...
January 12, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29336902/surgical-management-of-pulsatile-tinnitus-secondary-to-jugular-bulb-or-sigmoid-sinus-diverticulum-with-review-of-literature
#16
W X Yeo, S H Xu, T Y Tan, Y M Low, H W Yuen
INTRODUCTION: Jugular bulb and sigmoid sinus anomalies are well-known causes of vascular pulsatile tinnitus. Common anomalies reported in the literature include high-riding and/or dehiscent jugular bulb, and sigmoid sinus dehiscence. However, cases of pulsatile tinnitus due to diverticulosis of the jugular bulb or sigmoid sinus are less commonly encountered, with the best management option yet to be established. In particular, reports on surgical management of pulsatile tinnitus caused by jugular bulb diverticulum have been lacking in the literature...
December 29, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29334788/latissimus-dorsi-flap-in-breast-reconstruction-recent-innovations-in-the-workhorse-flap
#17
Rachita Sood, Jeena M Easow, Geoffrey Konopka, Zubin J Panthaki
BACKGROUND: Surgeons employ the latissimus dorsi flap (LDF) for reconstruction of a large variety of breast cancer surgery defects, including quadrantectomy, lumpectomy, modified radical mastectomy, and others. The LDF may be used in delayed or immediate reconstruction, in combination with tissue expanders for a staged reconstruction, with implant-based immediate reconstruction, or alone as an autogenous flap. METHODS: The authors discuss the historical uses and more recent developments in the LDF...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29333783/-application-of-preoperative-vascular-localization-techniques-for-perforator-flaps
#18
Wu Lianjun, Wang Huiming
With the development of microvascular technology, perforator flaps have gradually become a good alternative for reconstruction of tissue defects. However, the major limitations of perforator flaps include uncertainty in predicting anatomical location of perforators and high variability in perforator size and course, which require preoperative localization techniques. Recently, as one of the preoperative localization techniques, computed tomography angiography was used to determine the number, size, course, and exact emerging point of perforator flaps...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29328516/ultrasonographic-demonstration-of-intraneural-neovascularization-after-penetrating-nerve-injury
#19
Zsuzsanna Arányi, Anita Csillik, Katalin Dévay, Maja Rosero
INTRODUCTION: Hypervascularization of nerves has been shown to be a pathological sign in some peripheral nerve disorders, but has not been investigated in nerve trauma. METHODS: An observational cohort study was performed of the intraneural blood flow of 30 patients (34 nerves) with penetrating nerve injuries, before or after nerve reconstruction. All patients underwent electrophysiological assessment, and B-mode and color Doppler ultrasonography. RESULTS: Intraneural hypervascularization proximal to the site of injury was found in all nerves, which was typically marked and had a longitudinal extension of several centimeters...
January 12, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29325356/-the-role-and-significance-of-digital-reconstruction-technique-in-liver-segments-based-on-portal-vein-structure
#20
X J Zhou, Q Dong, C Z Zhu, X Chen, B Wei, Y H Duan, J Zhao, X W Hao, H Zhang, P Nie, B Hu, W J Xu, R W Shen, Z H Chen, K R Dong, Y Z Bai, Q Shu, W J Luo, F Gao, N Xia, Q Y Yu
Objective: To study the segment of liver according to the large amount of three-dimensional(3D) reconstructive images of normal human livers and the vascular system, and to recognize the basic functional liver unit based on the anatomic features of the intrahepatic portal veins. Methods: The enhanced CT primitive DICOM files of 1 260 normal human livers from different age groups who treated from October 2013 to February 2017 provided by 16 hospitals were analyzed using the computer-aided surgery system.The 3D liver and liver vascular system were reconstructed, and the digital liver 3D model was established...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
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