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https://www.readbyqxmd.com/read/29306251/evaluation-of-renal-anomalies-inferior-vena-cava-variations-and-left-renalvein-variations-by-lumbar-magnetic-resonance-imaging-in-3000-patients
#1
Alper Dilli, Fatma Sevin Coşar Ayaz, Keziban Karacan, Kürşad Zengin, Ümit Yaşar Ayaz, Osman Raif Karabacak, Baki Hekimoğlu
Background/aim: The variations and anomalies of the kidneys besides the variations of the inferior vena cava (IVC) and left renal vein (LRV) are mostly asymptomatic, but they carry potential risks particularly during retroperitoneal surgery and radiological interventions. Our aim was to find the frequencies, types, and sex distribution of renal anomalies and variations of the IVC and LRV utilizing magnetic resonance imaging (MRI). Materials and methods: Between November 2010 and April 2011, a retrospective study was conducted including lumbar spinal MRI of 3000 consecutive patients (1869 females and 1131 males) with a median age of 54 years (range: 9-78 years)...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29287820/health-related-quality-of-life-scores-underestimate-the-impact-of-major-complications-in-lumbar-degenerative-scoliosis-surgery
#2
Steven D Glassman, Keith H Bridwell, Christopher I Shaffrey, Charles C Edwards, Jon D Lurie, Christine R Baldus, Leah Y Carreon
STUDY DESIGN: Retrospective cohort. OBJECTIVE: To examine Charlson Comorbidity Index (CCMI) as a marker for deterioration in health status not reflected in standard Health Related Quality of Life (HRQOL) measures. SUMMARY OF BACKGROUND DATA: HRQOL has become a primary metric for assessing outcomes following spinal deformity surgery. However, studies have reported limited impact of complications on postoperative HRQOL outcomes. METHODS: We examined serial CCMI, complications, and HRQOL outcomes for 138 adult lumbar deformity patients treated surgically with a minimum two-year follow-up that included 126 females (91%) with a mean age of 59...
January 2018: Spine Deformity
https://www.readbyqxmd.com/read/29284846/comparison-of-the-intravenous-and-epidural-administration-of-tumor-necrosis-factor-alpha-antagonists-in-an-experimental-rat-pain-model
#3
Serbülent Gökhan Beyaz, Mustafa Erkan İnanmaz, Tolga Ergönenç, Onur Palabıyık, Yakup Tomak, Ayça Taş Tuna
Introduction: Inflammatory cytokines secreted from the nucleus pulposus are thought to lead to lumbar nerve root compression-like symptoms. Tumor necrosis factor-alpha (TNF-α), an inflammatory cytokine, likely plays an important role in lumbar disc hernia-related leg pain. In this experimental study, we compared the effectiveness of TNF-α antagonists administered through the intravenous or epidural route in lumbar spine pathologies. Materials and Methods: After ethics committee approval had been obtained, 24 Sprague Dawley male rats aged 70-90 days and weighing 250-300 g each were allocated to four groups...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284601/clinical-and-radiologic-characteristics-of-deep-lumbosacral-dural-arteriovenous-fistulas
#4
F Jablawi, O Nikoubashman, G A Schubert, M Dafotakis, F-J Hans, M Mull
BACKGROUND AND PURPOSE: Spinal dural arteriovenous fistulas located in the deep lumbosacral region are rare and the most difficult to diagnose among spinal dural arteriovenous fistulas located elsewhere in the spinal dura. Specific clinical and radiologic features of these fistulas are still inadequately reported and are the subject of this study. MATERIALS AND METHODS: We retrospectively evaluated all data of patients with spinal dural arteriovenous fistulas treated and/or diagnosed in our institution between 1990 and 2017...
December 28, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29248773/spine-surgery-complicated-by-an-engorged-lumbar-epidural-venous-plexus-from-cerebral-spinal-fluid-over-shunting-a-case-report-and-review-of-the-literature
#5
Vance L Fredrickson, Arati Patel, Martin H Pham, Ben A Strickland, Ifije Ohiorhenuan, Thomas Chen
BACKGROUND: Over-shunting of cerebral spinal fluid may lead to intracranial hypotension and dilation of spinal epidural veins. Radiculopathy may rarely occur secondary to these engorged spinal epidural veins. In addition, the etiology of the radiculopathy may be obscured by concomitant spinal degenerative changes. CASE DESCRIPTION: We present a case of a 29-year-old female with positional headaches from intracranial hypotension in the setting of cerebral spinal fluid over-shunting...
December 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29159805/the-anatomy-of-the-infrarenal-lumbar-splanchnic-nerves-in-human-cadavers-implications-for-retroperitoneal-nerve-sparing-surgery
#6
Tyler S Beveridge, Dale E Fournier, Adam M R Groh, Marjorie Johnson, Nicholas E Power, Brian L Allman
Injury to the nerves of the aortic- and superior hypogastric plexuses during retroperitoneal surgery often results in significant post-operative complications, including retrograde ejaculation and/or loss of seminal emission in males. Although previous characterizations of these plexuses have done well to provide a basis for understanding the typical anatomy, additional research into the common variations of these plexuses could further optimize nerve-sparing techniques for retroperitoneal surgery. To achieve this, the present study aimed to document the prevalence and positional variability of the infrarenal lumbar splanchnic nerves (LSNs) through gross dissection of 26 human cadavers...
November 21, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29121960/non-invasive-quantification-of-age-related-changes-in-the-vertebral-endplate-in-rats-using-in-vivo-dce-mri
#7
Hui Li, Jia-Zhi Yan, Yong-Jie Chen, Wei-Bo Kang, Jia-Xi Huang
BACKGROUND: Small animal models that can mimic degenerative disc disease (DDD) are commonly used to examine DDD progression. However, assessments such as histological studies and macroscopic measurements do not allow for longitudinal studies because they can only be completed after the animal is sacrificed. Dynamic contrast-enhanced MRI (DCE-MRI) may provide a reliable, non-invasive in vivo method for detecting the progression. METHODS: The present study investigated the progression of changes in lumbar discs and the effect of endplate conditions on diffusion into the lumbar discs of aging sand rats after intravenous administration of gadolinium-containing contrast medium through the tail vein...
November 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29118021/venous-collapse-regulates-intracranial-pressure-in-upright-body-positions
#8
Petter Holmlund, Anders Eklund, Lars-Owe D Koskinen, Elias Johansson, Nina Sundström, Jan Malm, Sara Qvarlander
Recent interest in intracranial pressure (ICP) in the upright posture has revealed that the mechanisms regulating postural changes in ICP are not fully understood. We have suggested an explanatory model where the postural changes in ICP depend on well-established hydrostatic effects in the venous system and where these effects are interrupted by collapse of the internal jugular veins (IJVs) in more upright positions. The aim of this study was to investigate this relationship by simultaneous invasive measurements of ICP, venous pressure and IJV collapse in healthy volunteers...
November 8, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29114089/angiographic-and-clinical-characteristics-of-thoracolumbar-spinal-epidural-and-dural-arteriovenous-fistulas
#9
Hiro Kiyosue, Yuji Matsumaru, Yasunari Niimi, Keisuke Takai, Tomoya Ishiguro, Masafumi Hiramatsu, Kotaro Tatebayashi, Toshinori Takagi, Shinichi Yoshimura
BACKGROUND AND PURPOSE: The purpose of this study is to compare the angiographic and clinical characteristics of spinal epidural arteriovenous fistulas (SEAVFs) and spinal dural arteriovenous fistulas (SDAVFs) of the thoracolumbar spine. METHODS: A total of 168 cases diagnosed as spinal dural or extradural arteriovenous fistulas of the thoracolumbar spine were collected from 31 centers. Angiography and clinical findings, including symptoms, sex, and history of spinal surgery/trauma, were retrospectively reviewed...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29099564/outcomes-of-anterior-exposure-for-spinal-surgery-at-an-independent-academic-medical-center
#10
Travis J Smith, Amelia T Bauer, Kara J Kallies, Mohammed Al-Hamadani, Sigurd B Gundersen
INTRODUCTION: Anterior exposure for spinal surgery has expanded and is used for common spinal procedures, including anterior lumbar interbody fusion, disc replacement, and vertebral corpectomy. With this approach, vascular injuries have been reported ranging from 1% to 25%. The impact of resident participation on intraoperative and postoperative outcomes within an independent academic medical center has not been widely reported. The objective of this study was to determine the incidence of complications during anterior exposure spinal surgery at an independent academic medical center...
February 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29097650/leiomyosarcoma-of-the-inferior-vena-cava-in-an-hiv-positive-adult-patient-a-case-report-and-review-of-the-literature
#11
Jing Xu, Arash Velayati, Barbara J Berger, Ming Liu, Naga K Sucharita Cheedella, Vladimir Gotlieb
BACKGROUND Leiomyosarcoma is the most common primary malignancy of the inferior vena cava (IVC), and represents approximately 10% of primary retroperitoneal sarcomas. Leiomyosarcoma presents with non-specific symptoms, including abdominal pain or back pain. There is an increased incidence in immunosuppressed individuals. CASE REPORT An unusual presentation of IVC leiomyosarcoma is reported in a 46-year-old female patient infected with human immunodeficiency virus (HIV) who was on highly active antiretroviral therapy (HAART) and who had a normal CD4 count of 934, who presented with back pain...
November 3, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29092965/penile-mondor-s-disease-after-anterolateral-retroperitoneal-approach-for-lumbar-fracture
#12
Mauro Dobran, Roberta Benigni, Davide Nasi, Daniele Cantoro
This is a rare case of thrombosis of the dorsal vein of the penis (Mondor's disease) occurred after an anterior-lateral retroperitoneal approach for a vertebral stabilisation in thoracolumbar vertebral fracture. Potential causes are traumatism, neoplasms, excessive sexual activity or abstinence. Although penile Mondor's disease is a clinical diagnosis, ultrasound imaging is the gold standard to confirm it. In the reported case, 1 week after neurosurgical retroperitoneal procedure of vertebral stabilisation, the patient complained of a painful cord-like mass midshaft of penis...
November 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29073499/management-of-major-vascular-injury-during-pedicle-screw-instrumentation-of-thoracolumbar-spine
#13
Aleem K Mirza, Mohammed Ali Alvi, Ryan M Naylor, Panagiotis Kerezoudis, William E Krauss, Michelle J Clarke, Daniel L Shepherd, Ahmad Nassr, Randall R DeMartino, Mohamad Bydon
OBJECTIVES: Vascular injury is a rare complication of spinal instrumentation. Presentation can vary from immediate hemorrhage to pseudoaneurysm formation. In the literature, surgical approach to repair has varied based on anatomy, acuity of diagnosis, infection, and available technology. In this manuscript, we aim to describe our institutional experience with vascular injuries in thoraco-lumbar spine surgery. PATIENTS AND METHODS: We report our institutional experience of three cases of vascular injury secondary to pedicle screw misplacement and their management, as well as a review of the literature...
October 16, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29057342/effect-of-body-mass-index-on-patient-outcomes-of-surgical-intervention-for-the-lumbar-spine
#14
Michael Flippin, Jessica Harris, Elizabeth W Paxton, Heather A Prentice, Donald C Fithian, Samuel R Ward, Sara P Gombatto
BACKGROUND: Conflicting findings exist on the effect of obesity on outcomes of lumbar spine surgery; results depend on the diagnosis studied, procedure evaluated, definition of obesity, and specific outcomes measured. The purpose of this retrospective cohort study is to examine the effect of increasing body mass index (BMI) on surgical-related, health-related, and long-term outcomes of lumbar spine surgery in a single representative patient sample. METHODS: Using a surgical registry from an integrated health care system, 8,049 instrumented lumbar spine cases were identified between 1/1/2009 and 09/30/2013...
September 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29052799/treatment-and-outcome-of-subdural-hematoma-in-patients-with-spontaneous-intracranial-hypotension-a-report-of-35-cases
#15
Enrico Ferrante, Fabio Rubino, Federica Beretta, Caroline Regna-Gladin, M Mirko Ferrante
Spontaneous intracranial hypotension (SIH) is characterized by orthostatic headache, low CSF pressure and diffuse pachymeningeal enhancement on brain MRI. SIH results from spontaneous CSF leakage leading to brain sag. Sometimes, tearing of bridging veins may produce subdural hematomas (SDHs). Patients with SDH were identified retrospectively from 212 consecutive SIH patients. Data were collected on demographics, clinical courses, neuroimaging findings, treatment and outcome of SDH. Thirty-five patients (16%), (6 women, 29 men; aged 33-68; mean, 50 years) with SDH were recruited...
October 20, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29050000/spinal-cord-injury-following-antegrade-scrotal-sclerotherapy-for-varcicocele-a-case-report
#16
Maxime Rossi, Daniel Jacobs, Eric Wespes, Thierry Roumeguère, Pierre Raynal
Varicocele is one of the causes of male infertility. Treatment aims to improve the chance of conception despite lasting controversies about benefits of varicocele repair on fertility. Many techniques have been described for varicocele management including the antegrade scrotal sclerotherapy (ASS). Interestingly, ASS is often presented as a safe, easy, and cost-effective procedure with low recurrence and complication rates. However, we report the first case of spinal cord paralysis following ASS probably due to embolization of venous anastomoses between left spermatic and ascending lumbar veins, which were undetected at preoperative phlebography...
October 19, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29045971/-technical-improvement-in-retroperitoneal-laparoscopic-living-donor-nephrectomy-report-of-193-cases
#17
L Zhao, L L Ma, H X Zhang, X F Hou, L Liu, Y Fu, Y G Kou, Y M Song
OBJECTIVE: To summarize our experience of retroperitoneal laparoscopic living donor nephrectomy, our continuous technical improvements and refinement of this skill and standardization of each procedure of this operation. METHODS: Having approved by hospital ethical committee and local government administration, a total of 193 living donors underwent retroperitoneal laparoscopic living donor nephrectomy from Dec.2003 to Feb. 2016 in our department. Under general anaesthesia, the operation was performed through 3 lumbar ports...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28981738/factors-influencing-the-operating-time-for-single-port-laparoscopic-radical-nephrectomy-focus-on-the-anatomy-and-distribution-of-the-renal-artery-and-vein
#18
Kazuhiro Matsumoto, Akira Miyajima, Keishiro Fukumoto, Akari Komatsuda, Naoya Niwa, Seiya Hattori, Toshikazu Takeda, Eiji Kikuchi, Hiroshi Asanuma, Mototsugu Oya
Objective: It is considered that laparoscopic single-site surgery should be performed by specially trained surgeons because of the technical difficulty in using special instruments through limited access. We investigated suitable patients for single-port laparoscopic radical nephrectomy, focusing on the anatomy and distribution of the renal artery and vein. Methods: This retrospective study was conducted in 52 consecutive patients who underwent single-port radical nephrectomy by the transperitoneal approach...
October 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28973289/early-postoperative-complications-for-elderly-patients-undergoing-single-level-decompression-for-lumbar-disc-herniation-ligamentous-hypertrophy-or-neuroforaminal-stenosis
#19
Arpan V Prabhu, Bryan A Lieber, Jenson K Henry, Nitin Agarwal, Monir Tabbosha, David O Okonkwo
BACKGROUND: Lumbar decompression for disc herniation is frequently performed on elderly patients, and this trend will continue as the population ages. Clinical reports on the complications of lumbar discectomy show good results and cost effectiveness in young or middle-aged patients. OBJECTIVE: To assess and compare the morbidity of single-level lumbar disc surgery for radicular pain in a cohort of patients greater than 80 yr of age to that of a middle-aged cohort...
July 18, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28960686/quantifying-response-to-intracranial-pressure-normalization-in-idiopathic-intracranial-hypertension-via-dynamic-neuroimaging
#20
Svetlana Lublinsky, Anat Kesler, Alon Friedman, Anat Horev, Ilan Shelef
BACKGROUND: Idiopathic intracranial hypertension (IIH) is characterized by elevated intracranial pressure without a clear cause. PURPOSE: To investigate dynamic imaging findings in IIH and their relation to mechanisms underlying intracranial pressure normalization. STUDY TYPE: Prospective. POPULATION: Eighteen IIH patients and 30 healthy controls. FIELD STRENGTH/SEQUENCE: T1 -weighted, venography, fluid attenuation inversion recovery, and apparent diffusion coefficients were acquired on 1...
September 27, 2017: Journal of Magnetic Resonance Imaging: JMRI
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