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Perforating veins

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https://www.readbyqxmd.com/read/27921277/surgery-for-acute-exacerbation-of-chronic-mesenteric-ischemia-a-case-report
#1
Shinji Abe, Tomoji Yamakawa, Hideaki Kawashima, Makoto Yoshida, Setsuji Takanashi, Motoya Kashiyama, Masahiro Ishigooka, Yasushige Shingu, Yoshiro Matsui
BACKGROUND: Chronic mesenteric ischemia (CMI) is a rare disease; however, symptomatic CMI has a risk of acute exacerbation without timely revascularization. CASE PRESENTATION: A 54-year-old man who had had postprandial pain for 6 months was admitted to our hospital because of vomiting and diarrhea. Although the celiac and superior mesenteric arteries were occluded at the proximal portion, contrast enhancement of the bowel wall was good in contrast-enhanced computed tomography (CECT)...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27909548/microvasculature-of-the-esophagus-and-gastroesophageal-junction-lesson-learned-from-submucosal-endoscopy
#2
REVIEW
Roberta Maselli, Haruhiro Inoue, Haruo Ikeda, Manabu Onimaru, Akira Yoshida, Esperanza Grace Santi, Hiroki Sato, Bu'Hussain Hayee, Shin-Ei Kudo
Advanced therapeutic endoscopy, in particular endoscopic mucosal resection, endoscopic submucosal dissection, per-oral endoscopic myotomy, submucosal endoscopic tumor resection opened a new era where direct esophageal visualization is possible. Combining these information with advanced diagnostic endoscopy, the esophagus is organized, from the luminal side to outside, into five layers (epithelium, lamina propria with lamina muscularis mucosa, submucosa, muscle layer, adventitia). A specific vascular system belonging to each layer is thus visible: Mucosa with the intra papillary capillary loop in the epithelium and the sub-epithelial capillary network in the lamina propria and, at the lower esophageal sphincter (LES) level with the palisade vessels; submucosa with the drainage vessels and the spindle veins at LES level; muscle layer with the perforating vessels; peri-esophageal veins in adventitia...
November 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27909471/contact-force-and-atrial-fibrillation-ablation
#3
REVIEW
Ullah W, Schilling Rj, Wong T
Catheters able to measure the force and vector of contact between the catheter tip and myocardium are now available. Pre-clinical work has established that the degree of contact between the radiofrequency ablation catheter and myocardium correlates with the size of the delivered lesion. Excess contact is associated with steam pops and perforation. Catheter contact varies within the left atrium secondary to factors including respiration, location, atrial rhythm and the trans-septal catheter delivery technology used...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27894155/increased-lower-extremity-venous-stasis-may-contribute-to-deep-venous-thrombosis-formation-after-microsurgical-breast-reconstruction-an-ultrasonographic-study
#4
Arash Momeni, Michael G Tecce, Michael A Lanni, Shagun Aggarwal, Christopher Pannucci, Stephen J Kovach, Suhail K Kanchwala, Liza C Wu, Joseph M Serletti
Background Despite guideline-compliant prophylaxis, an increased rate of deep venous thrombosis (DVT) formation has been reported following autologous versus implant-based breast reconstruction. We hypothesized that tight abdominal fascia closure might decrease lower extremity venous return and promote venous stasis. Methods An observational crossover study of patients who underwent autologous breast reconstruction using transverse rectus abdominis musculocutaneous/deep inferior epigastric artery perforator flaps was conducted...
November 28, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27885675/intratissue-lymphovenous-communications-in-the-mechanism-of-action-of-vascularized-lymph-node-transfer
#5
María Miranda Garcés, Gemma Pons, Rosa Mirapeix, Jaume Masià
BACKGROUND AND OBJECTIVES: Vascularized lymph node transfer (VLNT) as a surgical treatment for cancer-related lymphedema has shown beneficial effects. The mechanism of action of this procedure involves lymphangiogenesis and lymphovenous communications (LVC) within the lymph nodes. We propose intratissue LVC as an additional element responsible for drainage of lymph to blood in the flap and examine this hypothesis in the current study. METHODS: This prospective study determined the passage of lymph to the venous system via intratissue LVC in 26 free flaps used for breast reconstruction...
November 25, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27879569/the-azygous-vein-is-at-potential-risk-of-injury-from-mal-positioning-of-left-thoracic-pedicle-screw-in-thoracic-adolescent-idiopathic-scoliosis-patients
#6
Jun Jiang, Bang-Ping Qian, Yong Qiu, Bin Wang, Yang Yu, Ze-Zhang Zhu
STUDY DESIGN: A computed tomography (CT) study OBJECTIVE.: To evaluate the changed position of azygous vein in thoracic adolescent idiopathic scoliosis (AIS) patients and to analyze the potential risk of injury of azygous vein from thoracic pedicle screw placement in these patients. SUMMARY OF BACKGROUND DATA: It has been widely recognized that the anatomic positions of structures adjacent to the vertebrae may change in AIS patients. To date, no study had evaluated such change of azygous vein in AIS patients...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27871596/confirmation-of-optimal-guidewire-length-for-central-venous-catheter-placement-using-transesophageal-echocardiography
#7
Manabu Yoshimura, Toshiyuki Nakanishi, Seishi Sakamoto, Takashi Toriumi
STUDY OBJECTIVE: Several authors have reported rare, but severe, complications associated with the length of the intravascular guidewire during central venous catheter placement, as the wire tip can cause cardiac arrhythmia or perforation or become trapped within the vessel. Although one report investigated the optimal guidewire length using fluoroscopy, few reports have precisely measured guidewire position using transesophageal echocardiography (TEE). Here, we investigated the appropriate intravascular length of a guidewire for right internal jugular vein approach using TEE during cardiac surgery...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27855353/challenging-the-limits-in-pancreatic-surgery-a-case-report
#8
Johannes Lemke, Stefan A Schmidt, Marko Kornmann, Karl-Heinz Orend, Doris Henne-Bruns
INTRODUCTION: Today, pancreatic surgery can be performed with low mortality and tolerable morbidity in specialized centers. Nevertheless, due to its anatomical localization and proximity to important vascular structures, surgical resection of the pancreas remains challenging in many cases. PRESENTATION OF CASE: Here, we present the case of a young woman who presented in our department with abdominal pain and a tumor mass located at the pancreatic head. She had undergone explorative laparotomy elsewhere before, in which the pancreatic tumor mass was reported to be unresectable due to infiltration of the mesenteric root...
November 14, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27846815/endomyocardial-biopsy-via-the-femoral-access-still-safe-and-valuable-diagnostic-tool
#9
Sylwia Sławek, Aleksander Araszkiewicz, Agnieszka Gaczkowska, Justyna Koszarska, Damian Celiński, Marek Grygier, Maciej Lesiak, Stefan Grajek
BACKGROUND: The endomyocardial biopsy has proven to be an integral diagnostic tool for surveillance of cardiac allograft rejection and identification of myocardial diseases. Nevertheless, this invasive procedure is not risk-free. This study focuses on the risk of complications and diagnostic performance of right ventricular endomyocardial biopsy (EMB). METHODS: In this single-center retrospective study, we analyzed 315 EMB procedures performed between July 2008 and May 2015 in 73 patients...
November 15, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27845962/anatomical-study-of-cutaneous-venous-flow-of-the-palm
#10
Baek-Kyu Kim, Heeyeon Kwon, Nobuaki Imanishi, Hak Chang
BACKGROUNDS: Various flaps elevated from the palm have been widely used for finger and hand reconstruction. Recently, perforator-based free flaps or venous free flaps have received popularity due to several advantages. The cutaneous venous system has been chosen as the circulatory outlet when designing and harvesting the flap from the palmer area due to the small size and thin nature of the flap. However, there have been few descriptions about the anatomy of the palmar cutaneous veins...
November 15, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27793561/detailed-vascular-anatomy-of-the-medial-femoral-condyle-and-the-significance-of-its-use-as-a-free-flap
#11
Laurenz Weitgasser, Sebastian Cotofana, Marion Winkler, Heinz Buerger, Daniel Jamnig, Friedrich Anderhuber, Alexander Gaggl
OBJECTIVE: The aim of this study is to provide detailed information on the arterial variations of the descending geniculate artery (DGA) for the harvest of a cortico-periostal flap from the medial femoral condyle and a fascio-cutaneous perforator flap with its respective pedicles. MATERIAL AND METHODS: A total of 50 lower limbs from embalmed cadavers were dissected. The distribution pattern, length, and diameter of the DGA, saphenous artery (SA), muscular, periostal, and articular branches, and their concomitant veins were measured and evaluated...
October 5, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27747129/delayed-diagnosis-of-iatrogenic-bladder-perforation-in-a-neonate
#12
Antoinette S Birs, Jose A Perez, Mark A Rich, Hubert S Swana
Iatrogenic bladder injuries have been reported in the neonate during umbilical artery/vein catheterization, voiding cystourethrogram, urinary catheterizations, and overwhelming hypoxic conditions. Patients with iatrogenic bladder perforations can present with acute abdomen indicating urinary peritonitis, septic-uremic shock, or subtle symptoms like abdominal distension, pain, hematuria, uremia, electrolyte imbalances, and/or difficulty urinating. The following neonatal case report of perforated bladder includes a review of the signs, symptoms, diagnostic tools, and management of bladder injury in neonates...
2016: Case Reports in Urology
https://www.readbyqxmd.com/read/27720430/the-role-of-splenectomy-before-liver-transplantation-in-biliary-atresia-patients
#13
Yoshiaki Takahashi, Toshiharu Matsuura, Yusuke Yanagi, Koichiro Yoshimaru, Tomoaki Taguchi
BACKGROUND/PURPOSE: There is currently no unified view regarding whether liver transplantation or splenectomy should be performed for hypersplenism before liver transplantation in biliary atresia (BA) patients. We herein describe the efficacy of splenectomy before liver transplantation. METHODS: Splenectomy was performed in ten patients with hypersplenism associated with BA. We retrospectively reviewed their perioperative and postoperative courses, the number of leukocytes and thrombocytes, and the MELD score...
September 26, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27666801/pulsatile-varicose-veins-secondary-to-severe-tricuspid-regurgitation-report-of-a-case-successfully-managed-by-endovenous-laser-treatment
#14
Shingo Chihara, Kentaro Sawada, Hiroshi Tomoeda, Shigeaki Aoyagi
We report a case of pulsatile varicose veins successfully managed by endovenous laser treatment (EVLT) of the great saphenous vein (GSV). A 77-year-old woman taking an anticoagulant was transferred to our hospital for pulsatile varicose veins complicated with repeated venous bleeding from an ulcer of her left lower leg. Doppler echocardiography showed severe tricuspid regurgitation, and duplex ultrasonography revealed an arterial-like pulsating flow in the saphenofemoral junction and along the GSV, but an arteriovenous fistula, obstruction of the deep veins, and the distal incompetent perforators were not detected...
September 22, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27622090/predictors-of-reoperations-in-deep-inferior-epigastric-perforator-flap-breast-reconstruction
#15
Dmytro Unukovych, Camilo Hernandez Gallego, Helena Aineskog, Andres Rodriguez-Lorenzo, Maria Mani
BACKGROUND: The deep inferior epigastric perforator (DIEP) procedure is regarded a safe option for autologous breast reconstruction. Reoperations, however, may occur, and there is no consensus in the literature regarding the risk factors. The aim of this study was to identify factors associated with reoperations in DIEP procedure. PATIENTS AND METHODS: A retrospective study of consecutive patients undergoing DIEP breast reconstruction 2007 to 2014 was performed and included a review of 433 medical charts...
August 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27616153/role-of-mdct-in-the-detection-of-early-abdominal-complications-after-orthotopic-liver-transplantation
#16
Piero Boraschi, Francescamaria Donati, Massimiliano Rossi, Davide Ghinolfi, Franco Filipponi, Fabio Falaschi
PURPOSE: This study aims to assess the role of multidetector computed tomography (MDCT) for detecting early abdominal complications after orthotopic liver transplantation. MATERIALS AND METHODS: We retrospectively enrolled 170 subjects with clinical laboratory and/or echo-color Doppler abnormalities who underwent MDCT within the first 90 days after transplantation. All images were reviewed by two radiologists in conference and imaging results were correlated with digital subtraction angiography, conventional cholangiography, surgery, clinical laboratory, and/or imaging follow-up...
August 26, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27592025/sensate-hypothenar-perforator-free-flap-for-resurfacing-large-volar-surface-defect-of-the-digit
#17
Bommie Florence Seo, Byung Yeun Kwon, Hyun Ho Han
In this report we present a case of large sized volar surface defect of a digit reconstructed by hypothenar perforator free flap coverage. A 57-year-old male patient presented with a 5 × 2 cm sized avulsive injury on his left little finger involving near total loss of the volar surface. The perforator arteries of the hypothenar area were identified around 5-15% on the x-axis and 25-50% on the y-axis (y-axis: a line from the pisiform base to the metacarpophalangeal joint, x-axis: a line perpendicular to the y-axis...
September 4, 2016: Microsurgery
https://www.readbyqxmd.com/read/27579238/basic-perforator-flap-hemodynamic-mathematical-model
#18
Youlun Tao, Maochao Ding, Aiguo Wang, Yuehong Zhuang, Shi-Min Chang, Jin Mei, Maolin Tang, Geoffrey G Hallock
BACKGROUND: A mathematical model to help explain the hemodynamic characteristics of perforator flaps based on blood flow resistance systems within the flap will serve as a theoretical guide for the future study and clinical applications of these flaps. METHODS: There are 3 major blood flow resistance network systems of a perforator flap. These were defined as the blood flow resistance of an anastomosis between artery and artery of adjacent perforasomes, between artery and vein within a perforasome, and then between vein and vein corresponding to the outflow of that perforasome...
May 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27577564/a-case-of-multiple-hepatic-lesions-associated-with-methotrexate-associated-lymphoproliferative-disorder
#19
Ruby Matsumoto, Kazushi Numata, Nobutaka Doba, Koji Hara, Makoto Chuma, Hiroyuki Fukuda, Akito Nozaki, Katsuaki Tanaka, Yoshimi Ishii, Shin Maeda
Patients receiving methotrexate (MTX) for the treatment of autoimmune disease are at a high risk of developing lymphoproliferative disorders (LPD), the so-called methotrexate-associated lymphoproliferative disorders (MTX-LPD). We recently performed abdominal ultrasonography (US) in a patient with rheumatoid arthritis (RA) who had developed hepatic dysfunction during the course of MTX therapy; the examination revealed multiple well-demarcated hepatic tumors with slightly irregular borders, the largest one measuring 9 cm in diameter...
October 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27545296/modification-of-facial-artery-myomucosal-flap-a-novel-perforator-flap-for-upper-aerodigestive-tract-reconstruction-after-head-and-neck-cancer-ablation
#20
C H Baek, B Y Kim, W R Park, G J Lee, S H Woo, J S Ryu, M K Chung
No abstract text is available yet for this article.
August 22, 2016: Clinical Otolaryngology
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