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Septal reconstruction

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https://www.readbyqxmd.com/read/28205501/transseptal-access-with-crossing-multiple-incisions-for-improved-pedicle-control-and-septum-preservation-how-i-do-it
#1
K Omura, D Asaka, J Nayak, Y Tanaka
INTRODUCTION: Recently, the surgical management of nasal tumors has been greatly influenced by advanced endoscopic techniques. To achieve complete endoscopic resection of large obstructing nasal tumors, a sufficient corridor for adequate exposure is also required. In the Japanese language, TACMI means "master expert," and herein we describe an endoscopic technique with novel elements that we term transseptal access with crossing multiple incisions (TACMI). This approach enables a direct transseptal approach to the pedicle through tumor transposition while allowing complete septal reconstruction and stability...
February 15, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28151866/acute-arterial-embolism-of-left-lower-extremity-caused-by-paradoxical-embolism-in-ebstein-s-anomaly-a-case-report
#2
Jun-Sheng Li, Jie Ma, Zi-Xing Yan, Dong-Ming Cheng, Liang Chang, Hai-Chun Zhang, Jiang-Yan Liu
INTRODUCTION: Ebstein's anomaly is a benign and stable congenital heart disease for asymptomatic patients. Despite a low incidence of Ebstein's anomaly (EA), patients' quality of life can be badly affected by EA without positive surgical intervention. Especially EA is associated with other congenital heart disease, such as the atrial septal defect, patent foramen ovale, and arterial embolism exclude other reasons, it is often considered to be the consequence of paradoxical embolism, and surgical intervention must be conducted...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28150412/new-application-of-three-dimensional-printing-biomaterial-in-nasal-reconstruction
#3
Sun Hwa Park, Byeong Gon Yun, Joo Yun Won, Won Soo Yun, Jin Hyung Shim, Mi Hyun Lim, Do Hyun Kim, Sang A Baek, Yahya Dhafer Alahmari, Jun Ho Jeun, Se Hwan Hwang, Sung Won Kim
OBJECTIVES: Polycaprolactone (PCL) is an U.S. Food and Drug Administration-approved synthetic biodegradable polymer and is easily fabricated into three-dimensional (3D) structures. In this study, the 3D-printed PCL implant for nasal augmentation was further evaluated for its suitability for nasal surgeries such as septoplasty and rhinoplasty. METHODS: Ten New Zealand White rabbits were included and divided into study and sham groups (7 and 3, respectively). A lateral incision was made on the nasal dorsum and a pocket formed in the subperichondrial plane between the upper lateral cartilage and nasal septum...
February 1, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28130765/-123-i-fp-cit-enc-dat-normal-database-the-impact-of-the-reconstruction-and-quantification-methods
#4
Livia Tossici-Bolt, John C Dickson, Terez Sera, Jan Booij, Susanne Asenbaun-Nan, Maria C Bagnara, Thierry Vander Borght, Cathrine Jonsson, Robin de Nijs, Swen Hesse, Pierre M Koulibaly, Umit O Akdemir, Michel Koole, Klaus Tatsch, Andrea Varrone
BACKGROUND: [(123)I]FP-CIT is a well-established radiotracer for the diagnosis of dopaminergic degenerative disorders. The European Normal Control Database of DaTSCAN (ENC-DAT) of healthy controls has provided age and gender-specific reference values for the [(123)I]FP-CIT specific binding ratio (SBR) under optimised protocols for image acquisition and processing. Simpler reconstruction methods, however, are in use in many hospitals, often without implementation of attenuation and scatter corrections...
December 2017: EJNMMI Physics
https://www.readbyqxmd.com/read/28127522/topographic-separation-of-fornical-fibers-associated-with-the-anterior-and-posterior-hippocampus-in-the-human-brain-an-mri-diffusion-study
#5
Kat Christiansen, Claudia Metzler-Baddeley, Greg D Parker, Nils Muhlert, Derek K Jones, John P Aggleton, Seralynne D Vann
BACKGROUND AND OBJECTIVE: Evidence from rat and nonhuman primate studies indicates that axons comprising the fornix have a characteristic topographical organization: projections from the temporal/anterior hippocampus mainly occupy the lateral fornix, whereas the more medial fornix contains fibers from the septal/posterior hippocampus. The aim of this study was to investigate whether the same topographical organization exists in the human brain. METHODS: Using high angular resolution diffusion MRI-based tractography at 3T, subdivisions of the fornix were reconstructed in 40 healthy adults by selecting fiber pathways from either the anterior or the posterior hippocampus...
January 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28120177/the-impact-of-reconstruction-and-scanner-characterisation-on-the-diagnostic-capability-of-a-normal-database-for-123-i-fp-cit-spect-imaging
#6
John C Dickson, Livia Tossici-Bolt, Terez Sera, Jan Booij, Morten Ziebell, Silvia Morbelli, Susanne Assenbaum-Nan, Thierry Vander Borght, Marco Pagani, Ozlem L Kapucu, Swen Hesse, Koen Van Laere, Jacques Darcourt, Andrea Varrone, Klaus Tatsch
BACKGROUND: The use of a normal database for [(123)I]FP-CIT SPECT imaging has been found to be helpful for cases which are difficult to interpret by visual assessment alone, and to improve reproducibility in scan interpretation. The aim of this study was to assess whether the use of different tomographic reconstructions affects the performance of a normal [(123)I]FP-CIT SPECT database and also whether systems benefit from a system characterisation before a database is used. Seventy-seven [(123)I]FP-CIT SPECT studies from two sites and with 3-year clinical follow-up were assessed quantitatively for scan normality using the ENC-DAT normal database obtained in well-documented healthy subjects...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28116756/branch-pulmonary-artery-peel-operation-in-a-patient-without-a-native-intrapericardial-pulmonary-artery
#7
Hyungtae Kim, Si Chan Sung, Kwang Ho Choi, Hyoung Doo Lee, Gil Ho Ban, Geena Kim, Hee Young Kim
A patient with pulmonary atresia with ventricular septal defect and major aortopulmonary collateral arteries without an intrapericardial pulmonary artery (PA) underwent a one-stage total correction, including both branch PA reconstructions, with a bovine pericardial roll at the age of 42 months. She was readmitted 54 months after the operation because of extracardiac conduit bacterial endocarditis and pulmonary infarction. The bovine pericardial roll between the right and left PAs was enucleated, and the surrounding fibrotic tissue (peel) was used as a new branch PA vascular conduit...
January 23, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28066610/the-application-of-autologous-pulmonary-artery-in-surgical-correction-of-complicated-aortic-arch-anomaly
#8
Shusheng Wen, Jianzheng Cen, Jimei Chen, Gang Xu, Biaochuan He, Yun Teng, Jian Zhuang
BACKGROUND: In the patients with longer-segment aortic arch hypoplasia or interruption with ventricular septal defect, surgery with homograft vessel or autologous pericardial patch to augment descending aortic arch will not result in adverse reactions caused by end-to-end anastomosis. In this study, we retrospectively analyzed primary experience of surgical correction of complicated aortic arch anomaly with autologous main pulmonary artery. METHODS: From July 2010 to March 2016, the twenty-one cases of aortic arch complex anomalies were reconstructed with autologous main pulmonary artery...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28048785/su-f-j-08-quantitative-spect-imaging-of-ra-223-in-a-phantom
#9
J Yue, R Hobbs, G Sgouros, E Frey
PURPOSE: Ra-223 therapy of prostate cancer bone metastases is being used to treat patients routinely. However, the absorbed dose distribution at the macroscopic and microscopic scales remains elusive, due to the inability to image the small activities injected. Accurate activity quantification through imaging is essential to calculate the absorbed dose in organs and sub-units in radiopharmaceutical therapy, enabling personalized absorbed dose-based treatment planning methodologies and more effective and optimal treatments...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043462/right-ventricular-outflow-tract-reconstruction-with-a-polytetrafluoroethylene-monocusp-valve-a-20-year-experience
#10
Mohineesh Kumar, Mark W Turrentine, Mark D Rodefeld, Teresa Bell, John W Brown
In patients with tetralogy of Fallot (TOF), pulmonary atresia (PA), and other congenital right ventricular outflow tract (RVOT) malformations, polytetrafluoroethylene (PTFE) monocusp outflow tract patches (MOTP) relieve obstruction and provide pulmonary valve competence. The purpose of this study was to determine whether our PTFE-MOTP was an acceptable short- and mid-term remedy for patients with TOF or PA as assessed by freedom from severe pulmonary regurgitation and freedom from reoperation. From 1994-2014, 171 patients (mean age 1...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28034709/transcatheter-closure-of-perimembranous-ventricular-septal-defects-using-dual-wire-maintaining-technique
#11
Xu-Dong Xu, Li-Ming Gao, Yuan Bai, Zhi-Gang Zhang, Xiao-Hua You, Xian-Xian Zhao, Yong-Wen Qin
OBJECTIVE: The present study was designed to evaluate the safety and feasibility of transcatheter closure of perimembranous ventricular septal defects (PmVSDs) with dual wire-maintaining technique (DWMT). PATIENTS/METHODS: From January 2010 to December 2013, a total of 241 patients (men: 109, women: 132; mean age: 22.2±15.4 years) with congenital PmVSDs were randomised to either the conventional technique (CT) group (n=118) or the DWMT group (n=123). RESULTS: In the CT group, the track wire was withdrawn before occluder insertion...
December 7, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28033636/treatment-strategy-for-revision-rhinoplasty-in-asians
#12
Yong Ju Jang, Do-Youn Kim
Revision rhinoplasty in Asian patients is associated with problems related to the use of grafts or implant materials. Moreover, the septal cartilage of Asian individuals is generally weak and small, which makes it particularly vulnerable to injury or secondary deformity during primary surgery. Hence, there is an increased demand for major reconstruction of the septal cartilage framework during revision surgery in Asian patients. In revision rhinoplasty of the nose in Asian patients, appropriate management of the graft or implant is vital...
December 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28032913/correction-of-hysteretic-respiratory-motion-in-spect-myocardial-perfusion-imaging-simulation-and-patient-studies
#13
Paul K R Dasari, Arda Könik, P Hendrik Pretorius, Karen L Johnson, William P Segars, Mohammed S Shazeeb, Michael A King
PURPOSE: Amplitude based respiratory gating is known to capture the extent of respiratory motion (RM) accurately but results in residual motion in the presence of respiratory hysteresis. In our previous study, we proposed and developed a novel approach to account for respiratory hysteresis by applying the Bouc-Wen (BW) model of hysteresis to external surrogate signals of anterior / posterior motion of the abdomen and chest with respiration. In this work using simulated and clinical SPECT myocardial perfusion imaging (MPI) studies, we investigate the effects of respiratory hysteresis and evaluate the benefit of correcting it using the proposed BW model in comparison with the abdomen signal typically employed clinically...
December 29, 2016: Medical Physics
https://www.readbyqxmd.com/read/28017577/ebstein-s-anomaly-genetics-clinical-manifestations-and-management
#14
REVIEW
Shi-Min Yuan
Ebstein's anomaly is uncommon. Genetic bases of this congenital heart defect may be related to the mutations in myosin heavy chain 7 and NKX2.5, among others. Asymptomatic patients with Ebstein's anomaly can be conservatively treated and kept under close follow-up, whereas surgical operation is indicated for those patients with evidence of right heart dilation and progressively impaired ventricular systolic function. A biventricular repair consisting of the reconstruction of a competent monocuspid tricuspid valve, right ventriculorrhaphy, subtotal atrial septal defect closure, and aggressive reduction atrioplasty is suitable for most patients, and 1...
November 19, 2016: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28010875/achievements-and-limitations-of-a-strategy-of-rehabilitation-of-native-pulmonary-vessels-in-pulmonary-atresia-ventricular-septal-defect-and-major-aortopulmonary-collateral-arteries
#15
Jerome Soquet, Matthew Liava'a, Lucas Eastaugh, Igor E Konstantinov, Johann Brink, Christian P Brizard, Yves d'Udekem
BACKGROUND: A strategy of rehabilitation for pulmonary atresia, ventricular septal defect, and major aortopulmonary collateral arteries (PA/VSD/MAPCAs) comprises repetitive shunting and patching procedures of the central pulmonary arteries. We wanted to determine the feasibility and limitations of a strategy of rehabilitation. METHODS: The outcomes of 37 consecutive patients operated from June 2003 to December 2014 for PA/VSD/MAPCAs were reviewed. The patients were directed to a rehabilitation strategy, except when they presented in heart failure with very large collaterals...
December 20, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28005774/a-simple-closure-technic-for-tracheoesophageal-puncture-failures
#16
Ahmet Mutlu, Sinem Dasli, Murat Ozturk, Murat Topdag
Tracheosephageal puncture is the one of the most favorable methods, and widely used by physicians for voice reconstruction after total laryngectomy. Intractable leakages from the tracheosephageal punctures are the most common complication, and management of these fistulas is still troublesome for the patients and physicians. Local surgical sutures, rotational flaps, injections are reported previously, but in this report the authors aimed to mention on a very simple method with silicone septal button. Insertion of a temporary silicone septal button may be well tolerated by patients and can help to manage this complication easily on exact indications...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27932858/one-stage-bone-strip-reconstruction-technique-with-balloon-sinus-dilatation-surgery-for-chronic-maxillary-atelectasis
#17
Tomoyuki Kashima, Robert A Goldberg, Jocelyne C Kohn, Daniel B Rootman
PURPOSE: Chronic maxillary atelectasis is characterized by unilateral spontaneous enophthalmos and hypoglobus due to increased orbital volume secondary to maxillary sinus inward deformation. Reformation of the sinus architecture and reconstruction of the orbit are key to a successful outcome. Here, we introduce a one-staged surgery that addresses both these goals. PATIENTS AND METHODS: We retrospectively reviewed 11 patients treated with one-stage orbital and sinus surgery...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27906082/secondary-correction-of-nasal-deformities-in-cleft-lip-and-palate-patients-surgical-technique-and-outcome-evaluation
#18
Gabor Vass, Gabor Mohos, Zsofia Bere, Laszlo Ivan, Janos Varga, Jozsef Piffko, Laszlo Rovo
BACKGROUND: Nasal deformity associated with cleft lip and palate is a highly challenging reconstructive problem in rhinoplasty. In the literature, several operative solutions and evaluation methods have been described, however these do not offer a standard procedure for the surgeon. Our aim was to standardize our surgical technique-as much as the uniqueness of each case allowed it-based on the most frequent deformities we had faced; and to evaluate our results via a postoperative patient satisfaction questionnaire...
December 1, 2016: Head & Face Medicine
https://www.readbyqxmd.com/read/27904843/cardiac-surgery-in-africa-a-thirty-five-year-experience-on-open-heart-surgery-in-cote-d-ivoire
#19
Koffi Herve Yangni-Angate, Christophe Meneas, Florent Diby, Manga Diomande, Anicet Adoubi, Yves Tanauh
BACKGROUND: Few centers for open heart surgery (OHS) are in Sub-Saharan Africa. Lack of OHS results is also noted. By reporting our African experience on OHS, the aim of this study was to fill the gap. METHODS: It is a retrospective study on 2,612 patients who were subject to an OHS between 1978 and 2013. Data were collected from demographical, clinical, investigative studies, surgical and outcomes parameters. RESULTS: There were 1,475 cases of rheumatic heart diseases (RHD), 126 endomyocardial fibrosis (EMF), 741 congenital heart diseases (CHDs) and 270 various affections...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27885998/bi-ventricular-finite-element-model-of-right-ventricle-overload-in-the-healthy-rat-heart
#20
Fulufhelo Masithulela
BACKGROUND: The recognition of RV overpressure is critical to human life, as this may signify morbidity and mortality. Right ventricle (RV) dysfunction is understood to have an impact on the performance of the left ventricle (LV), but the mechanisms remain poorly understood. It is understood that ventricular compliance has the ability to affect cardiac performance. In this study, a bi-ventricular model of the rat heart was used in preference to other, single-ventricle models. Finite element analysis (FEA) of the bi-ventricular model provides important information on the function of the healthy heart...
November 25, 2016: Bio-medical Materials and Engineering
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