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Percutaneous biopsy

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https://www.readbyqxmd.com/read/28078376/ipsilateral-dual-site-same-sitting-percutaneous-lung-biopsy-a-feasibility-study
#1
Joseph Barnett, Aniket N Tavare, Sajid Khan, Ashish Saini, Dean D Creer, Samanjit S Hare
PURPOSE: Patients with thoracic malignancies often have more than one site of pulmonary, nodal or pleural disease within one hemithorax. In addition, large heterogeneous lesions may comprise distinct, mixed pathological entities. Histological analysis of these lesions can alter tumour staging and treatment options. We investigated the feasibility, safety and benefit of performing image-guided percutaneous lung biopsy (PLB) of two lesions in the same hemithorax at a single sitting. MATERIALS AND METHODS: Ten consecutive outpatients with two or more potential disease foci within the same hemithorax were analysed over a 15-month period...
January 11, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28076721/effect-of-tumor-complexity-and-technique-on-efficacy-and-complications-after-percutaneous-microwave-ablation-of-stage-t1a-renal-cell-carcinoma-a-single-center-retrospective-study
#2
Marki E Klapperich, E Jason Abel, Timothy J Ziemlewicz, Sara Best, Meghan G Lubner, Stephen Y Nakada, J Louis Hinshaw, Christopher L Brace, Fred T Lee, Shane A Wells
Purpose To evaluate the effects of tumor complexity and technique on early and midterm oncologic efficacy and rate of complications for 100 consecutive biopsy-proved stage T1a renal cell carcinomas (RCCs) treated with percutaneous microwave ablation. Materials and Methods This HIPAA-compliant, single-center retrospective study was approved by the institutional review board. The requirement to obtain informed consent was waived. Ninety-six consecutive patients (68 men, 28 women; mean age, 66 years ± 9.4) with 100 stage T1a N0M0 biopsy-proved RCCs (median diameter, 2...
January 11, 2017: Radiology
https://www.readbyqxmd.com/read/28076626/development-of-a-multifunctional-needle-for-percutaneous-heart-biopsy-and-cell-therapy-a-technical-note
#3
Nathan Valle Soubihe, Agnes Afrodite S Albuquerque, Livia Arcêncio, José Antonio Thomazini, Andre Schmidt, Paulo Roberto B Evora
Validation of transendocardial injection as a method for delivering therapeutic agents to the diseased heart is increasing. Puncture heart biopsies should re-emerge as a possible alternative method to allow access to the myocardium and implantable biomaterial for cell therapy. Therefore, this work aims to present a percutaneous puncture device for biopsy and intramyocardial biomaterial injection, standardize the technique and attest to the safety of the method. The adaptation consists of creating myocardial microlesions that allow for better fixation of stem cells...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28074540/complications-of-percutaneous-liver-biopsy-with-klatskin-needles-a-36-year-single-centre-experience
#4
V Takyar, O Etzion, T Heller, D E Kleiner, Y Rotman, M G Ghany, N Fryzek, V H Williams, E Rivera, S Auh, T J Liang, J H Hoofnagle, C Koh
BACKGROUND: Liver biopsy is the gold standard in evaluating liver diseases but is susceptible to complications. Safety data on aspiration needle biopsies remain limited. AIM: To evaluate the safety of percutaneous liver biopsy performed with Klatskin needle. METHODS: Clinical and biochemical data were retrospectively retrieved from sequential subjects who underwent liver biopsy with Klatskin needle from 1978 to 2015. Subjects with complications underwent thorough chart reviews for hospital course...
January 10, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28072757/organ-procurement-organization-survey-of-practices-and-beliefs-regarding-prerecovery-percutaneous-liver-biopsy-in-donation-after-neurologic-determination-of-death
#5
Joseph Benton Oliver, Andrea Fleisch Marcus, Mark Paster, Joseph Nespral, Advaith Bongu, George Dikdan, Lloyd Brown, Nikole Neidlinger, Baburao Koneru
BACKGROUND: Prerecovery liver biopsy (PLB) allows histological evaluation of the organ prior to procurement. The opinions and what factors might influence PLB use within Organ Procurement Organizations (OPOs) are unknown. METHODS: A survey instrument was distributed by the Association of OPOs to the clinical directors of all 58 OPOs. Descriptive statistics were calculated. Results were also stratified based on OPO characteristics. RESULTS: 84...
January 9, 2017: Transplantation
https://www.readbyqxmd.com/read/28072685/nephrotic-syndrome-associated-with-metastatic-thymoma-treated-with-chemotherapy
#6
Shin Hye Yoo, Hyean-Ji Kim, Jeong-Han Kim, Gyeong-Won Lee, Jeong Hee Lee, Se Hyun Kim, Ji-Won Kim, Jin Won Kim, Jeong-Ok Lee, Yu Jung Kim, Keun-Wook Lee, Jee Hyun Kim, Soo-Mee Bang, Jong Seok Lee
RATIONALE: Nephropathy with concurrent invasive thymoma is a type of paraneoplastic syndrome. PATIENT CONCERNS AND DIAGNOSES: We report a 32-year-old female with nephrotic syndrome that was first diagnosed along with invasive thymoma and treated by means of cisplatin-based chemotherapy for the thymoma. The patient initially presented with dyspnea and generalized edema. Chest radiography and computed tomography scans revealed right pleural effusion and a mass in the right middle lung field, which were confirmed by a percutaneous lung biopsy as metastatic invasive thymoma...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28061018/bronchopulmonary-pharmacokinetics-of-r-salbutamol-and-s-salbutamol-enantiomers-in-pulmonary-epithelial-lining-fluid-and-lung-tissue-of-horses
#7
Glenn A Jacobson, Sharanne Raidal, Kate Robson, Christian K Narkowicz, David S Nichols, E Haydn Walters
AIMS: Salbutamol is usually administered as a racemic mixture but little is known about the enantioselectivity of salbutamol pharmacokinetics in the lung. This study was designed to investigate enantiomer concentrations in lung tissue after inhaled dosing. METHODS: Horses (n = 12) received racemic (rac-) salbutamol 1000 microgram via inhalation. Enantioselective UPLC-MS/MS was used to determine salbutamol concentrations in pulmonary epithelial lining fluid (PELF) sampled 2, 5, 10 and 15 min after administration, in central lung (endoscopic bronchial biopsy) and peripheral lung (percutaneous pulmonary biopsy) tissues (at 20 and 25 minutes respectively), and in plasma samples...
January 6, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28056627/needle-like-instruments-for-steering-through-solid-organs-a-review-of-the-scientific-and-patent-literature
#8
Marta Scali, Tim P Pusch, Paul Breedveld, Dimitra Dodou
High accuracy and precision in reaching target locations inside the human body is necessary for the success of percutaneous procedures, such as tissue sample removal (biopsy), brachytherapy, and localized drug delivery. Flexible steerable needles may allow the surgeon to reach targets deep inside solid organs while avoiding sensitive structures (e.g. blood vessels). This article provides a systematic classification of possible mechanical solutions for three-dimensional steering through solid organs. A scientific and patent literature search of steerable instrument designs was conducted using Scopus and Web of Science Derwent Innovations Index patent database, respectively...
December 1, 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28051047/evaluation-of-the-use-of-laparoscopic-guided-cholecystocholangiography-and-liver-biopsy-in-definitive-diagnosis-of-neonatal-cholestatic-jaundice
#9
Khalid Shreef, Abdullah Alhelal
BACKGROUND: Once it is established that a jaundiced infant has direct hyperbilirubinemia, the principal diagnostic concern is to differentiate hepatocellular from obstructive cholestasis. Traditional tests such as ultrasonography, percutaneous liver biopsy and technetium 99 m hepatobiliary iminodiacetic acid (HIDA) scan are often not sufficiently discriminating. Definitive exclusion of biliary atresia (BA) in the infant with cholestatic jaundice usually requires mini-laparotomy and intra-operative cholangiography...
October 2016: African Journal of Paediatric Surgery: AJPS
https://www.readbyqxmd.com/read/28050696/ct-guided-core-needle-biopsy-of-mediastinal-nodes-through-a-transpulmonary-approach-retrospective-analysis-of-the-procedures-conducted-over-six-years
#10
Zhongyuan Yin, Zhiwen Liang, Pengcheng Li, Qiong Wang
PURPOSE: To retrospectively evaluate the diagnostic performance and complications of a CT-guided core needle cutting biopsy of mediastinal nodes through a transpulmonary approach. MATERIALS AND METHODS: From January 2009 to December 2014, we used a coaxial positioning system and an 18G cutting-type biopsy device to perform CT-guided percutaneous transpulmonary needle biopsies of mediastinal nodes for 127 patients. The diagnostic performance, complication rate, influencing factors, distribution of mediastinal nodes and pathological diagnoses were investigated...
January 3, 2017: European Radiology
https://www.readbyqxmd.com/read/28049374/needle-track-seeding-after-percutaneous-radiofrequency-ablation-of-hepatocellular-carcinoma-14-year-experience-at-a-single-center
#11
Zhong-Yi Zhang, Wei Yang, Kun Yan, Ying Dai, Wei Wu, Jung-Chieh Lee, Min-Hua Chen
PURPOSE: To determine the incidence, risk factors and prognosis associated with needle track seeding after percutaneous radiofrequency ablations(RFA) for hepatocellular carcinoma(HCC) with a long-term follow-up. MATERIALS AND METHODS: 741 HCC patients undergoing percutaneous RFA were retrospectively analyzed. Mean follow-up interval was 34.3±26.8 months. All seeding neoplasms were diagnosed by imaging modalities with or without pathological evaluation. Risk factors, including Child-Pugh grading, tumor size, number, location, serum AFP level, track number, biopsy before RFA and electrode type were performed by univariate analysis...
January 3, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28039877/noninvasive-assessment-of-liver-fibrosis-stage-using-ultrasound-based-shear-wave-velocity-measurements-and-serum-algorithms-in-patients-with-viral-hepatitis-b-a-retrospective-cohort-study
#12
Jianxue Liu, Junzhi Zhao, Yaoren Zhang, Yonghao Ji, Shumei Lin, Guoliang Dun, Sujuan Guo
OBJECTIVES: Liver biopsy remains the reference standard for the assessment of liver fibrosis, but this procedure is invasive and can lead to complications. Thus, studies to determine the optimal noninvasive test are warranted. This study compared several noninvasive tests and their combinations for evaluating liver fibrosis stages in patients with chronic hepatitis B. METHODS: The shear wave velocity (SWV) and laboratory indicators were collected from 174 patients with chronic hepatitis B...
December 31, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28039349/primary-embryonal-rhabdomyosarcoma-of-the-liver
#13
Aditi Arora, Ritika Jaiswal, Nidhi Anand, Nuzhat Husain
Rhabdomyosarcomas are malignant neoplasms with striated muscle differentiation. This is the most common type of soft-tissue sarcoma in children, but occurs rarely in adults. Its occurrence in liver is infrequent. We report a case of primary hepatic embryonal rhabdomyosarcoma in a 67-year-old man. The tumour was occupying the left lobe of the liver with large component of lesion seen bulging in left subhepatic space indenting over the stomach, compressing the pancreas and gall bladder. A percutaneous biopsy was performed which revealed embryonal rhabdomyosarcoma...
December 30, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/28035948/fiber-optic-fabry-p%C3%A3-rot-interferometers-for-axial-force-sensing-on-the-tip-of-a-needle
#14
Steven Beekmans, Thomas Lembrechts, John van den Dobbelsteen, Dennis van Gerwen
A range of complex percutaneous procedures, such as biopsy or regional anesthesia, rely heavily on accurate needle insertion. Small variations in the mechanical properties of the pierced tissue can however cause deviations from the projected needle path and can thus result in inaccurate placement of the needle. Navigation of a rigid needle towards the target tissue is traditionally based on the surgeons capacity to interpret small variations in the needle insertion force. A more accurate measurement of these small force variations enables improvement in needle targeting, can potentially aid in enhancing force feedback in robotic needle placement and can provide valuable information on tissue-tool interaction...
December 26, 2016: Sensors
https://www.readbyqxmd.com/read/28035579/extra-pleuric-coaxial-system-for-ct-guided-percutaneous-fine-needle-aspiration-biopsy-fnab-of-small-%C3%A2-20%C3%A2-mm-lung-nodules-a-novel-technique-using-multiplanar-reconstruction-mpr-images
#15
Raffaella Capasso, Rita Nizzoli, Marcello Tiseo, Giuseppe Pedrazzi, Luca Brunese, Antonio Rotondo, Massimo De Filippo
The aim of the study is to present the diagnostic feasibility, usefulness, and safety of a novel technique for coaxial CT-guided fine-needle aspiration biopsy of small (≤20 mm in diameter) lung nodules. A 18-gauge (G) (1.2 × 40 mm) needle is inserted through the skin in the depth of the thoracic wall tissues remaining outside the pleura. Its positioning is planned and adjusted using multiplanar reconstruction (MPR) images along the 18-G guide needle axis tracing a reference outline extended from the needle tip to the target nodule...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28035284/transcaval-biopsy-of-a-mediastinal-mass-compressing-the-superior-vena-cava
#16
Anthony Logaraj, Philip Edwards
Imaging-guided percutaneous chest biopsy is a commonly performed procedure and considered the minimally invasive gold standard for histopathological investigation of thoracic masses. Recognized complications include pneumothorax, air embolism, and seeding of the biopsy tract. We describe a novel approach to diagnostic sampling of a mediastinal mass in a critically unwell patient using a transjugular hepatic biopsy needle. Transcaval mediastinal biopsy may represent a safer alternative to percutaneous biopsy of mediastinal masses in critically unwell patients...
March 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28031085/percutaneous-removal-of-benign-breast-lesions-with-an-ultrasound-guided-vacuum-assisted-system-influence-factors-in-the-hematoma-formation
#17
Hui-Ping Huo, Wen-Bo Wan, Zhi-Li Wang, Hong-Fei Li, Jun-Lai Li
Objective To explore the influence factors in hematoma formation after removing benign breast lesions with an ultrasound-guided vacuum-assisted system.Methods A total of 232 females with 312 benign breast masses received excisional biopsy with ultrasound- guided vacuum-assisted system. The pathology of patients, Results of hematoma development and outcome, influence factors for hematoma occurrence (nodule size, nodule location, number of nodule, breast shape, menstrual period, efficacy time of bandage, and application of hemostatic agents during the procedure) were recorded...
March 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28027567/elastographic-evaluation-of-indeterminate-breast-masses-on-ultrasound
#18
Luciana Graziano, Almir Galvão Vieira Bitencourt, Marcela Pecora Cohen, Camila Souza Guatelli, Miriam Rosalina Brites Poli, Juliana Alves Souza, Elvira Ferreira Marques
Objective To evaluate the diagnostic accuracy of elastography for breast cancer identification in patients with indeterminate lesions on ultrasound. Methods This prospective, descriptive study included patients with indeterminate breast lesions in the ultrasound and with indication for percutaneous or surgical biopsy. The elastography was evaluated by qualitative analysis and by two methods for the semi quantitative analysis. Results We evaluated 125 female patients with 159 lesions, with a mean age of 47 years, and a range of 20-85 years...
December 27, 2016: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28024966/office-based-ultrasound-guided-renal-core-biopsy-is-safe-and-efficacious-in-the-management-of-small-renal-masses
#19
Chirag N Dave, Brian Seifman, Avinash Chennamsetty, Rene Frontera, Kassem Faraj, Ryan Nelson, Colleen Lucido, Edward W Schervish
OBJECTIVE: To evaluate the safety and efficacy of ultrasound (US)-guided percutaneous renal mass biopsy (RMB) performed in the office setting by urologists. MATERIALS AND METHODS: This is a retrospective study involving patients who underwent office-based US-guided percutaneous RMB between April 2010 and October 2015. Baseline vital signs and US were performed prior to the procedure. Patients were then observed for 1 hour after the procedure and repeat vital signs and US were performed...
December 23, 2016: Urology
https://www.readbyqxmd.com/read/28008340/fractional-excretion-of-sodium-in-hepatorenal-syndrome-clinical-and-pathological-correlation
#20
Ali A Alsaad, Hani M Wadei
AIM: To determine the accuracy of fractional excretion of sodium (FeNa) in the diagnosis of hepatorenal syndrome (HRS). METHODS: Eighty-eight liver transplantation candidates with renal dysfunction and/or proteinuria were included in the study sample. The baseline characteristics of the patients were obtained. All the 88 patients underwent iothalamate glomerular filtration rate testing, 24-h urine collection for urinary sodium and protein excretions, random urine for sodium and creatinine testing, and percutaneous kidney biopsy...
December 8, 2016: World Journal of Hepatology
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