Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 859
Filter
1.
Rev. chil. cardiol ; 39(2): 159-164, ago. 2020. graf
Article in Spanish | LILACS | ID: biblio-1138529

ABSTRACT

Abstract A 68-year-old man previously subjected to radiotherapy had a prior aortic valve replacement due de radiation induced calcification of the aortic valve. Presently the patient developed severe calcification of the mitral valve ring leading to critical mitral valve stenosis. A supra annular implantation of an On X Conform valve was successfully achieved. The clinical course was uneventful, and the echocardiographic evaluation demonstrated a normal function of the valve. Different alternatives for the surgical management of this complication are discussed.


Subject(s)
Humans , Male , Aged , Calcinosis/complications , Heart Valve Prosthesis , Heart Valve Prosthesis Implantation , Mitral Valve Stenosis/surgery , Mitral Valve Stenosis/complications , Calcinosis/surgery , Calcinosis/diagnostic imaging , Echocardiography , Fluoroscopy , Mitral Valve Annuloplasty , Mitral Valve Stenosis/diagnostic imaging
2.
Coluna/Columna ; 19(3): 189-193, July-Sept. 2020. tab, graf
Article in English | LILACS | ID: biblio-1133571

ABSTRACT

ABSTRACT Objective To compare the use of a dynamic surgical guide (PediGuard®) and pilot hole preparation, with the use of a probe and the aid of fluoroscopy in osteoporotic or osteopenic patients undergoing pedicular fixation of the thoracic or lumbar spine. Methods One hundred and eight patients were randomized. A pilot hole was prepared with the dynamic surgical guide (PediGuard®), or with a probe with the aid of fluoroscopy. A total of 657 vertebral pedicles (120 thoracic and 180 lumbar) were included in the study. The parameters used for the comparison were: accuracy of the pedicular screw, number of fluoroscopic shots, and change in intraoperative trajectory of the perforation after detecting pedicle wall rupture. Results In the group with use of the dynamic surgical guide, malpositioning of the pedicle screws was observed in 8 (2.6%) patients and intraoperative change of perforation trajectory in 12 (4%) patients, and there were 52 fluoroscopic shots. In the group without use of the dynamic surgical guide (PediGuard®), misplacement of the pedicle screws was observed in 33 (11%) patients and intraoperative change of perforation trajectory in 47 (13.2%) patients, and there were 136 fluoroscopic shots. Conclusion The use of the dynamic surgical guide (PediGuard®) in patients with osteoporosis or osteopenia enabled more accurate placement of pedicular screws, with less change in the intraoperative course of the perforation and less intraoperative radiation. Level of Evidence II; Randomized clinical trial of lesser quality.


RESUMO Objetivo Comparar o uso de um guia cirúrgico dinâmico (PediGuard®) e o preparo de orifício piloto com uma sonda e o auxílio de fluoroscopia em pacientes com osteopenia ou osteoporose submetidos à fixação pedicular da coluna torácica ou lombar. Métodos Cento e oito pacientes foram randomizados. Um orifício piloto foi preparado com o guia cirúrgico dinâmico (PediGuard®) ou com uma sonda com auxílio de fluoroscopia. Foram incluídos no estudo 657 pedículos vertebrais (120 torácicos e 180 lombares). Os parâmetros usados para a comparação foram: acurácia da colocação do parafuso pedicular, número de disparos fluoroscópicos e mudança da trajetória intraoperatória da perfuração depois da detecção de ruptura da parede do pedículo. Resultados No grupo de pacientes em que se usou o guia cirúrgico dinâmico, observou-se mau posicionamento dos parafusos pediculares em oito (2,6%) pacientes e alteração da trajetória intraoperatória da perfuração em 12 (4%) pacientes, com 52 disparos fluoroscópicos. No grupo de pacientes em que o guia cirúrgico dinâmico (PediGuard®) não foi usado o mau posicionamento dos parafusos pediculares foi observado em 33 (11%) pacientes, a mudança intraoperatória da trajetória da perfuração foi vista em 47 (13,2%) pacientes, com 136 disparos fluoroscópicos. Conclusão O uso do guia cirúrgico dinâmico (PediGuard®) em pacientes com osteoporose ou osteopenia permitiu a colocação de parafusos pediculares com maior acurácia, com menor alteração da trajetória intraoperatória da perfuração e menor dose de radiação intraoperatória. Nível de Evidência II; Estudo clínico randomizado de menor qualidade.


RESUMEN Objetivo Comparar el uso de una guía quirúrgica dinámica (PediGuard®) y la preparación del orificio piloto con una sonda y la ayuda de fluoroscopia en pacientes con osteopenia u osteoporosis sometidos a fijación pedicular de la columna torácica o lumbar. Métodos Ciento ocho pacientes fueron asignados aleatoriamente. Se preparó un orificio piloto preparado con la guía quirúrgica dinámica (PediGuard®) o con una sonda con ayuda de fluoroscopia. Se incluyeron en el estudio 657 pedículos vertebrales (120 torácicos y 180 lumbares). Los parámetros utilizados para la comparación fueron: precisión de la colocación del tornillo pedicular, número de disparos del dispositivo de fluoroscopia y cambio en la trayectoria intraoperatoria de la perforación después de la detección de ruptura de la pared del pedículo. Resultados En el grupo de pacientes en el que se utilizó la guía quirúrgica dinámica, se observó mal posicionamiento de los tornillos pediculares en 8 (2,6%) pacientes y cambios de la trayectoria intraoperatoria de la perforación en 12 (4%) pacientes, con 52 disparos del aparato de fluoroscopia. En el grupo de pacientes en los que no se utilizó la guía quirúrgica dinámica (PediGuard®), se observó un mal posicionamiento de los tornillos pediculares en 33 (11%) pacientes, el cambio intraoperatorio de la trayectoria de perforación se observó en 47 (13,2%) pacientes, con 136 disparos fluoroscópicos. Conclusión El uso de la guía quirúrgica dinámica (PediGuard®) en pacientes con osteoporosis u osteopenia permitió la colocación de tornillos pediculares con mayor precisión, menos cambios en la trayectoria intraoperatoria de la perforación y dosis más baja de radiación intraoperatoria. Nivel de Evidencia II; Ensayo clínico aleatorizado de menor calidad.


Subject(s)
Humans , Orifice Valves , Bone Diseases, Metabolic , Bone Screws , Fluoroscopy
3.
Rev. méd. Chile ; 148(4): 548-552, abr. 2020. graf
Article in Spanish | LILACS | ID: biblio-1127095

ABSTRACT

Transcatheter aortic valve implantation (TAVI) has a lower perioperative risk than traditional surgery mostly when the transfemoral access is used. Some patients have anatomical conditions that contraindicate the use of this route. Lithoplasty is a novel technique that fractures calcium in coronary and peripheral arteries using pulsatile waves transmitted through an angioplasty balloon. We report an 83 year-old male with an aortic stenosis requiring TAVI, with severe calcification of his femoral and aortic arteries. A balloon lithoplasty of the right iliac-femoral tract was carried out, which allowed the use of the transfemoral route to install the aortic prosthesis. The patient had a good subsequent evolution.


Subject(s)
Humans , Aortic Valve Stenosis , Heart Valve Prosthesis , Transcatheter Aortic Valve Replacement , Fluoroscopy , Cardiac Catheterization , Treatment Outcome
4.
Arch. argent. pediatr ; 118(1): 56-60, 2020-02-00. tab, ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1095592

ABSTRACT

La fístula traqueoesofágica congénita sin atresia esofágica asociada, conocida como tipo H, es una anomalía infrecuente. Se manifiesta con episodios de tos, ahogo y cianosis durante la alimentación y/o neumonía recurrente.Si bien los síntomas están usualmente presentes desde el nacimiento, el diagnóstico es difícil. La rareza de esta patología, los síntomas no específicos y las limitaciones en la demostración radiológica y endoscópica de la fístula contribuyen, a menudo, a la demora entre la presentación y la confirmación del diagnóstico.Se describen las manifestaciones clínicas, los métodos de evaluación y el tratamiento de 3 neonatos con esta patología, y se presentan recomendaciones para el diagnóstico a fin de evitar demoras innecesarias en el manejo de las fístulas en H.


Congenital tracheoesophageal fistula not associated with esophageal atresia, known as H-type fistula, is an uncommon anomaly. It presents with cough, choking, and cyanosis during feeding and/or recurrent pneumonia. Although symptoms are usually present from birth, diagnosis is difficult. The rarity of this disease, non-specific symptoms, and the limitations of radiological and endoscopic confirmation of the fistula often result in a delay between presentation and diagnosis confirmation. Here we describe the clinical manifestations, assessment methods, and management of 3 newborn infants with H-type tracheoesophageal fistula, together with diagnosis recommendations to prevent unnecessary delays in the management of this condition.


Subject(s)
Humans , Male , Infant, Newborn , Tracheoesophageal Fistula/surgery , Tracheoesophageal Fistula/congenital , Tracheoesophageal Fistula/diagnostic imaging , Thoracoscopy , Bronchoscopy , Fluoroscopy
5.
Article in Chinese | WPRIM | ID: wpr-828234

ABSTRACT

OBJECTIVE@#To evaluate accuracy and safety of individualized 3D printing guided template for thoracolumbar pedicle screw placement in patients with ankylosing spondylitis.@*METHODS@#From January 2016 to September 2019, thoracolumbar spine three-dimensional CT data of 8 patients with ankylosing spondylitis were included, Mimics 17.0 and ideaMaker computer software were applied to design thoracolumbar pedicle screw guided template of patients with AS, physical model of all patients (T-L)were printed by 3D printer, 2 parts in each patient, and divided into guide-plate-assisted screw group (experimental group) and free-hand nail group (control group). Thoracolumbar pedicle screws of both groups were placed by the same spinal surgeon. The accuracy of pedicle screw placement between two groups were evaluated according to results of postoperative CT, the accuracy of the fixation of thoracolumbar pedicle screw was divided into 4 grades, grade 0 and 1 screws were acceptable nails, grade 2 and 3 screws were unacceptable nails. The diameter and length of pedicle screws, the distance between entry point and posterior median line designed by preoperative 3D printing were compared with actual use in operation.@*RESULTS@#Twenty three blocks of thoracolumbar 3D printing screw of ankylosing spondylitis guided templates were designed and printed in guide-plate-assisted screw group, 46 screws were inserted and 44 screws were accepted. The time of implanting a screw into thoracolumbar pedicle was (4.20±1.15) min, the frequency of X-ray was (5.00±1.25) times and the average adjustment times of screw and Kirschner needle during screw placement was (1.76±1.32) times. In the control group, 46 nails were placed by traditional surgical method and 30 screws were accepted. The time of implanting a screw into thoracolumbar pedicle was (14.67±2.23) min, the frequency of X-ray fluoroscopy was (14.46±2.21) times and the average times of Kirschner needle adjustment was (4.76±3.39) times. The success rates between experimental group and control group were 95.65%(44 / 46) and 56.22%(30 / 46) respectively, and had statistical difference (χ=13.538, 0.05). The operation time of inserting a single screw, the times of X-ray fluoroscopy, and the average times of adjustment screw and Kirschner needle in experimental group were significant less than those in control group(<0.01).@*CONCLUSION@#The personalized guide template assisted the thoracolumbar fixation designed by 3D printing could significantly improve safety, accuracy and efficiency of surgery, especially suitable for thoracolumbar vertebral bodies requiring posterior pedicle screw fixation for fracture or dislocation with AS.


Subject(s)
Fluoroscopy , Humans , Pedicle Screws , Printing, Three-Dimensional , Spinal Fusion , Spondylitis, Ankylosing , Surgery, Computer-Assisted
6.
CoDAS ; 32(2): e20180248, 2020. tab
Article in Portuguese | LILACS | ID: biblio-1089611

ABSTRACT

RESUMO Objetivo O objetivo deste estudo foi descrever o tempo de trânsito oral total (TTOT) da deglutição em diferentes consistências de alimento na criança com acometimento neurológico (CAN) e com indicação de gastrostomia. Método Estudo clínico transversal incluiu 15 indivíduos com CAN e indicação de gastrostomia, sendo 10 do sexo masculino e cinco do sexo feminino, 13 com alimentação via oral exclusiva e dois com sonda nasogástrica, faixa etária de um a 14 anos, média de 5,7 anos, acompanhados no Grupo Multidisciplinar de Gastroenterologia Pediátrica da Universidade de Marília-UNIMAR. A deglutição foi analisada por estudo videofluoroscópico da deglutição. Foram mensuradas 19 imagens do tempo de trânsito oral total (TTOT) da deglutição, por software específico, utilizando alimento pastoso (13 imagens) e alimento líquido (seis imagens). O TTOT foi categorizado em curto ou longo baseado em definições já evidenciadas na literatura. Resultados A média e o desvio padrão para o TTOT foram, respectivamente, 10,75s e 11,76s para o pastoso e 4,22s e 1,54s para o líquido. Conclusão O tempo de trânsito oral total é longo nas consistências pastosa e líquida em crianças com acometimento neurológico e com indicação de gastrostomia.


ABSTRACT Purpose The objective of the present study was to describe the total oral transit time (TOTT) of children with neurological impairment (CNI) and with an indication of gastrostomy. Method A cross-sectional clinical study was conducted on 15 children (10 male and 5 female ranging in age from 1 to 14 years; mean 5.7 years) with CNI and gastrostomy indication. The patients were monitored by a Multidisciplinary Group of Pediatric Gastroenterology of Universidade de Marília - UNIMAR, which 13 of them with previous exclusive oral feeding and 2 fed by a nasogastric tube. Swallowing was analyzed by videofluoroscopy swallowing study and 19 images of TOTT were obtained using specific software, with analysis of pureed food (13 images) and liquid (six images). TTOT was categorized as short or long based on definitions already evidenced in the literature. Results The mean and standard deviation of TOTT values was 10.75 s and 11.76 s for pureed food and 4.22 s and 1.54 s for liquid food. Conclusion The total oral transit time of pureed or liquid consistency was long in children with neurological involvement and with an indication of gastrostomy.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Gastrostomy , Deglutition Disorders/etiology , Deglutition , Nervous System Diseases , Fluoroscopy/methods , Deglutition Disorders/surgery , Deglutition Disorders/diagnostic imaging , Cross-Sectional Studies , Enteral Nutrition/methods
7.
Article in English | WPRIM | ID: wpr-810984

ABSTRACT

OBJECTIVE: To evaluate the technical feasibility of intranodal lymphangiography and thoracic duct (TD) access in a canine model.MATERIALS AND METHODS: Five male mongrel dogs were studied. The dog was placed in the supine position, and the most prominent lymph node in the groin was accessed using a 26-gauge spinal needle under ultrasonography (US) guidance. If the cisterna chyli (CC) was not opacified by bilateral lymphangiography, the medial iliac lymph nodes were directly punctured and Lipiodol was injected. After opacification, the CC was directly punctured with a 22-gauge needle. A 0.018-in microguidewire was advanced through the CC and TD. A 4-Fr introducer and dilator were then advanced over the wire. The microguidewire was changed to a 0.035-in guidewire, and this was advanced into the left subclavian vein through the terminal valve of the TD. Retrograde TD access was performed using a snare kit.RESULTS: US-guided lymphangiography (including intranodal injection of Lipiodol [Guerbet]) was successful in all five dogs. However, in three of the five dogs (60%), the medial iliac lymph nodes were not fully opacified due to overt Lipiodol extravasation at the initial injection site. In these dogs, contralateral superficial inguinal intranodal injection was performed. However, two of these three dogs subsequently underwent direct medial iliac lymph node puncture under fluoroscopy guidance to deliver additional Lipiodol into the lymphatic system. Transabdominal CC puncture and cannulation with a 4-Fr introducer was successful in all five dogs. Transvenous retrograde catheterization of the TD (performed using a snare kit) was also successful in all five dogs.CONCLUSION: A canine model may be appropriate for intranodal lymphangiography and TD access. Most lymphatic intervention techniques can be performed in a canine using the same instruments that are employed in a clinical setting.


Subject(s)
Animals , Catheterization , Catheters , Dogs , Ethiodized Oil , Fluoroscopy , Groin , Humans , Lymph Nodes , Lymphatic System , Lymphography , Male , Needles , Punctures , SNARE Proteins , Subclavian Vein , Supine Position , Thoracic Duct , Ultrasonography
9.
Arq. bras. cardiol ; 113(5): 960-968, Nov. 2019. tab, graf
Article in English | LILACS | ID: biblio-1055049

ABSTRACT

Abstract Background: Coronary angiography with two catheters is the traditional strategy for diagnostic coronary procedures. TIG I catheter permits to cannulate both coronary arteries, avoiding exchanging catheters during coronary angiography by transradial access. Objective: The aim of this study is to evaluate the impact of one-catheter strategy, by avoiding catheter exchange, on coronary catheterization performance and economic costs. Methods: Transradial coronary diagnostic procedures conducted from January 2013 to June 2017 were collected. One-catheter strategy (TIG I catheter) and two-catheter strategy (left and right Judkins catheters) were compared. The volume of iodinated contrast administered was the primary endpoint. Secondary endpoints included radial spasm, procedural duration (fluoroscopy time) and exposure to ionizing radiation (dose-area product and air kerma). Direct economic costs were also evaluated. For statistical analyses, two-tailed p-values < 0.05 were considered statistically significant. Results: From a total of 1,953 procedures in 1,829 patients, 252 procedures were assigned to one-catheter strategy and 1,701 procedures to two-catheter strategy. There were no differences in baseline characteristics between the groups. One-catheter strategy required less iodinated contrast [primary endpoint; (60-105)-mL vs. 92 (64-120)-mL; p < 0.001] than the two-catheter strategy. Also, the one-catheter group presented less radial spasm (5.2% vs. 9.3%, p = 0.022) and shorter fluoroscopy time [3.9 (2.2-8.0)-min vs. 4.8 (2.9-8.3)-min, p = 0.001] and saved costs [149 (140-160)-€/procedure vs. 171 (160-183)-€/procedure; p < 0.001]. No differences in dose-area product and air kerma were detected between the groups. Conclusions: One-catheter strategy, with TIG I catheter, improves coronary catheterization performance and reduces economic costs compared to traditional two-catheter strategy in patients referred for coronary angiography.


Resumo Fundamento: A cineangiocoronariografia com dois cateteres é a estratégia tradicional para procedimentos coronarianos de diagnóstico. O cateter TIG I permite canular ambas as artérias coronárias, evitando a troca de cateteres durante a cineangiocoronariografia por acesso transradial. Objetivo: O objetivo deste estudo é avaliar o impacto da estratégia de um cateter, evitando a troca de cateter, no desempenho da coronariografia por cateterismo e nos seus custos econômicos. Métodos: Foram coletados os procedimentos diagnósticos coronarianos transradiais realizados entre janeiro de 2013 e junho de 2017. A estratégia de um cateter (cateter TIG I) e a estratégia de dois cateteres (cateteres coronários direito e esquerdo de Judkins) foram comparadas. O volume de contraste iodado administrado foi o endpoint primário. Os endpoints secundários eram espasmo radial, duração do procedimento (tempo de fluoroscopia) e exposição a radiações ionizantes (produto dose-área e kerma no ar). Os custos econômicos diretos também foram avaliados. Para as análises estatísticas, valores de p < 0,05 bicaudais foram considerados estatisticamente significativos. Resultados: De um total de 1.953 procedimentos em 1.829 pacientes, 252 procedimentos foram atribuídos à estratégia de um cateter e 1.701 procedimentos à estratégia de dois cateteres. Não houve diferenças nas características basais entre os grupos. A estratégia de um cateter exigiu menos contraste iodado [endpoint primário; (60-105) -mL vs. 92 (64-120) -mL; p < 0,001] em comparação com a estratégia de dois cateteres. Além disso, o grupo da estratégia de um cateter apresentou menos espasmo radial (5,2% vs. 9,3%, p = 0,022) e menor tempo de fluoroscopia [3,9 (2,2-8,0) -min vs. 4,8 (2,9-8,3) -min, p = 0,001] e economia de custos [149 (140-160)-€/procedimento vs. 171 (160-183) -€/procedimento; p < 0,001]. Não foram detectadas diferenças no produto dose-área e kerma no ar entre os grupos. Conclusões: A estratégia de um cateter, com cateter TIG I, melhora o desempenho da coronariografia por cateterismo e reduz os custos econômicos em comparação com a estratégia tradicional de dois cateteres em pacientes encaminhados para cineangiocoronariografia.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Coronary Angiography/methods , Cardiac Catheters/economics , Radiation Dosage , Radiation, Ionizing , Spasm , Time Factors , Fluoroscopy , Cardiac Catheterization/economics , Cardiac Catheterization/instrumentation , Cardiac Catheterization/methods , Retrospective Studies , Cost Savings/economics , Coronary Angiography/economics , Coronary Angiography/instrumentation , Radial Artery/diagnostic imaging , Myocardial Ischemia/diagnostic imaging , Contrast Media
10.
Int. braz. j. urol ; 45(6): 1281-1282, Nov.-Dec. 2019.
Article in English | LILACS | ID: biblio-1056347

ABSTRACT

ABSTRACT Introduction and Objectives: We aim to present the use of 3D digital and physical renal model (1-5) to guide the percutaneous access during percutaneous nephrolithotripsy (PNL). Materials and Methods: We present the clinical case of a 30 years old man with left renal stone (25x15 mm). A virtual 3D reconstruction of the anatomical model including the stone, the renal parenchyma, the urinary collecting system (UCS) and the skeletal landmarks (lumbar spine and ribs) was elaborated. Finally, a physical 3D model was created with a 3D printer including the renal parenchyma, UCS and the stone. The surgeon evaluated the 3D virtual reconstruction and manipulated the printed model before surgery to improve the anatomical knowledge and to facilitate the percutaneous access. In prone position, combining ultrasound and fluoroscopy implemented by the preoperative anatomical planning based on the 3D virtual and printed model, an easy and safe access of the inferior calyx was achieved. Then, the patient underwent PNL using a 30 Fr Amplatz sheet with semi-rigid nephroscope and ultrasound energy to achieve a complete lithotripsy of the pelvic stone. Results: The procedure was safely completed with 1 single percutaneous puncture (time of puncture 2 minutes). Overall surgical time was 90 min. No intra and postoperative complications were reported. The CT scan performed before discharge confirmed a complete stone free state. Conclusion: The 3D-guided approach to PNL facilitates the preoperative planning of the puncture with better knowledge of the renal anatomy and may be helpful to reduce operative time and improve the learning curve.


Subject(s)
Humans , Male , Adult , Lithotripsy/methods , Kidney Calculi/surgery , Printing, Three-Dimensional , Models, Anatomic , Fluoroscopy/methods , Reproducibility of Results , Treatment Outcome , Ultrasonography, Interventional/methods , Operative Time , Kidney
11.
Int. braz. j. urol ; 45(6): 1153-1160, Nov.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1056326

ABSTRACT

ABSTRACT Purpose: To identify the factors increased fluoroscopy time during percutaneous nephrolithotomy and investigate the relationship between the 3D segmentation volume ratio of stone to renal collecting system and fluoroscopy time. Materials and Methods: Data from 102 patients who underwent percutaneous nephrolithotomy were analyzed retrospectively. Volume segmentation of both the renal collecting system and stones were obtained from 3D segmentation software with the images on CT data. Analyzed stone volume (ASV), renal collecting system volume (RCSV) measured and the ASV-to-RCSV ratio was calculated. Several parameters were evaluated for their predictive ability with regard to fluoroscopy time. Results: The stone-free rate was 55.9% after the percutaneous nephrolithotomy. Complications occurred in 31(30.4%) patients. The mean fluoroscopy time was 199.4±151.1 seconds. The fluoroscopy time was significantly associated with the ASV-to-RCSV ratio (p<0.001, r=0.614). The single tract was used in 77 (75.5%) cases while multiple tracts were used in 25 (24.5%) cases. Fluoroscopy time was significantly associated with multiple access (p<0.001, r=0.689). On univariate linear regression analysis, longer fluoroscopy time was related with increased stone size, increased stone volume, increased number of access, increased calyx number with stone, increased ASV-to-RCSV, increased operative time and decreased stone essence. On multivariate linear regression analysis, the number of access and the ASV-to-RCSV were independent predictors of fluoroscopy time during percutaneous nephrolithotomy. Conclusions: The distribution of the stone burden volume in the pelvicalyceal system is a significant predictor for prolonged fluoroscopy time during percutaneous nephrolithotomy. Measures to decrease FT could be beneficial in patients with a high ASV-to-RCSV ratio for precise preoperative planning.


Subject(s)
Humans , Male , Female , Adult , Fluoroscopy/methods , Kidney Calculi/surgery , Kidney Calculi/pathology , Nephrolithotomy, Percutaneous/methods , Time Factors , Body Mass Index , Linear Models , Retrospective Studies , Risk Factors , Treatment Outcome , Statistics, Nonparametric , Disease-Free Survival , Radiation Exposure , Middle Aged
12.
Int. arch. otorhinolaryngol. (Impr.) ; 23(3): 343-353, July-Sept. 2019. tab, graf
Article in English | LILACS | ID: biblio-1040022

ABSTRACT

Abstract Introduction Dysphagia, when left untreated, can result in an increase in morbidity and mortality rates, especially among infants with history of life-threatening neonatal diseases. The videofluoroscopy swallowing study (VFSS) is considered the gold standard for the diagnosis of dysphagia. There are few imaging studies of infant swallowing based on videofluoroscopy, none of which were performed during breast-feeding. Objective To analyze the similarities and differences in infant swallowing function -regarding the feeding method - breast or bottle - and the impact on videofluoroscopy findings. Methods A retrospective study of 25 VFSSs of breastfeeding and bottle-feeding infants was performed. The studied variables were: oral capture and control; tongue versus mandible movement coordination; sucking pattern; mandible excursion; liquid flow; bolus retention; laryngeal penetration; tracheal aspiration; clearing of material collected in the pharynx; and gastroesophageal reflux (GER). Results The study showed a statistically significant association between nipple/areole capture; oral control; sucking pattern; mandibular excursion; liquid flow and feeding method. The velar sealing deficit, the place that trigger the pharyngeal swallow, food retention in the pharyngeal recesses, laryngeal penetration and GER were also factors associated with the feeding method. Conclusion The analysis of the swallowing characteristics of both feeding methods revealed significant differences between them, with an impact on the diagnosis in the VFSSs, especially regarding velar function.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Bottle Feeding , Breast Feeding , Deglutition Disorders/diagnosis , Deglutition/physiology , Fluoroscopy/methods , Gastroesophageal Reflux , Retrospective Studies
13.
Int. braz. j. urol ; 45(5): 956-964, Sept.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1040071

ABSTRACT

ABSTRACT Purpose We aimed to compare the outcomes of supine and prone miniaturized percutaneous nephrolithotomy (m-PNL) in the treatment of lower pole, middle pole and renal pelvic stones. Materials and Methods 54 patients who performed supine m-PNL between January 2017 and March 2018 and 498 patients who performed prone m-PNL between April 2015 and January 2018 were included in the study. Of the 498 patients, 108 matching 1: 2 in terms of age, gender, body mass index, American Association of Anesthesiology score, stone size, stone localization and hydronephrosis according to the supine m-PNL group were selected as prone m-PNL group. The patients with solitary kidney, upper pole stone, urinary system anomaly or skeletal malformation and pediatric patients (<18 years old) were excluded from the study. The success was defined as 'complete stone clearance' and was determined according to the 1st month computed tomography. Results The operation time and fluoroscopy time in supine m-PNL was significantly shorter than prone m-PNL group (58.1±45.9 vs. 80.1±40.0 min and 3.0±1.7 min vs. 4.9±4.5 min, p=0.025 and p=0.01, respectively). When post-operative complications were compared according to the modified Clavien-Dindo classification, overall and subgroup complication rates were comparable between groups. There was no significant difference between the groups in terms of the success rates (supine m-PNL; 72.2%, prone m-PNL; 71.3%, p=0.902). Conclusions Supine m-PNL procedure is more advantageous in terms of operation time and fluoroscopy time in the treatment of lower pole, middle pole and renal pelvic stones.


Subject(s)
Humans , Male , Female , Adult , Kidney Calculi/surgery , Supine Position , Prone Position , Patient Positioning/methods , Nephrolithotomy, Percutaneous/methods , Fluoroscopy/methods , Kidney Calculi/pathology , Reproducibility of Results , Treatment Outcome , Matched-Pair Analysis , Statistics, Nonparametric , Operative Time , Kidney Pelvis/surgery , Middle Aged
14.
Rehabil. integral (Impr.) ; 14(1): 8-15, jul. 2019. tab
Article in Spanish | LILACS | ID: biblio-1015950

ABSTRACT

Introducción: Los trastornos de la alimentación y deglución (TAD) acompañan frecuentemente a la parálisis cerebral (PC). Su diagnóstico oportuno previene numerosas complicaciones. La evaluación clínica es el primer acercamiento a los TAD, pero resulta insuficiente para identificar situaciones de riesgo (penetración laríngea o aspiración). Para ello, es necesaria una evaluación instrumental como la videofluoroscopía (VFC). Objetivo: Describir y cuantificar los hallazgos de VFC en un grupo de niños con PC, entre 3 años y 6 años 11 meses, GMFCS I-V. Pacientes y Métodos: Se practicó una VFC a 50 pacientes con PC, previa determinación del nivel Gross Motor Functional Classification System (GMFCS) e inexistencia de contraindicaciones para dicho examen. Además, se determinaron signos de incompetencia e inseguridad deglutoria, consistencias toleradas y requerimientos de posicionamiento, para facilitar el procedimiento. Resultados: Población predominantemente masculina, edad promedio de 5 años, 78% GMFCS III-V. Hasta el 94% tuvo una o más alteraciones videofluoroscópicas en alguna etapa del examen. El 28% no presentó capacidad de masticación, siendo todos GMFCS V. En eficacia deglutoria la alteración más frecuente fue el residuo vallecular (86%). En seguridad deglutoria fue el derrame posterior en la fase oral (68%). El 26% tuvo aspiración traqueal silente. En la fase esofágica, el 30% presentó tránsito esofágico lento y el 8% reflujo gastroesofágico. Conclusión: La VFC identificó alteraciones potencialmente riesgosas en todos los niveles GMFCS en niños portadores de PC, algunas de ellas silentes, incluso en casos de compromiso motor leve.


Introduction: Cerebral palsy (CP) is frequently accompanied by feeding and swallowing disorders (FSD). An early diagnosis of FSD prevents numerous complications. Clinical assessment stands as the first approach to FSD, although it is insufficient to identify risk factors (laryngeal penetration and aspiration). For this purpose, a videofluoroscopic (VFC) evaluation is required. Objective: To describe and quantify VFC findings in a group of children with CP, aged 3 to 6 years, GMFCS I to V. Patients and Methods: 50 patients underwent a VFC after their Gross Motor Functional Classification System (GMFCS) level was determined and no contraindications for the exam were identified. In addition, the researchers conducted an assessment to establish the presence of signs of unsafe and incompetent swallowing, food consistency tolerance, and mealtime positioning requirements, in order to allow a more comfortable VFC procedure. Results: There was male predominance, average age of 5 years, 78% GMFCS III-V. Up to 94% had one or more VFC alterations at some point of the exam. 28% had no chewing ability, being all the cases GMFCS V. Considering the deglutition efficacy, the commonest alteration was residue in the vallecula (86%), while the most frequent for swallowing safety was posterior spillage in the oral phase (68%). 26% presented silent tracheal aspiration. In the esophageal phase the findings were poor esophageal transit (30%) and gastroesophageal reflux (8%). Conclusions: VFC identified potentially risks in every GMFCS level of children with CP. Some of the VFC alterations are silent, even in mild motor impairment cases.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Fluoroscopy/methods , Deglutition Disorders/diagnosis , Deglutition Disorders/etiology , Cerebral Palsy/complications , Video Recording , Severity of Illness Index , Cerebral Palsy/physiopathology
15.
Distúrb. comun ; 31(2): 270-275, jun. 2019. tab
Article in Portuguese | LILACS | ID: biblio-1008222

ABSTRACT

Introdução: A deglutição se dá através de uma sequência de movimentos sincrônicos, sendo os da fase faríngea a elevação e a anteriorização da laringe. Objetivo: Analisar os movimentos da laringe durante a deglutição e verificar o seu impacto na proteção das vias aéreas. Métodos: Estudo retrospectivo descritivo aprovado por comitês éticos em pesquisa através dos protocolos números 2013/008 e 362,826, por análise de um banco de dados de imagem. Foram analisadas 52 deglutições através de exame de videofluoroscopia da deglutição, sendo 26 desses de sujeitos do gênero masculino e 26 do feminino, com idade média de 76 anos. Os exames foram realizados ao longo de um ano em um serviço de radiologia e imagem em um centro de saúde primário, onde dois avaliadores independentes avaliaram movimentos de laringe durante deglutição, presença de disfagia, e qualidade de proteção das vias aéreas para com as consistências líquida e pastosa. Resultados: os avaliadores concordaram em todas as análises executadas. Entre os movimentos de laringe estatisticamente significativos tem-se a elevação inadequada da laringe e a sua anteriorização, ou seja, a falta de anteriorização, a elevação reduzida e a elevação incompleta e repetida da laringe foram os mais nocivos para a proteção das vias aéreas. Conclusão: o impacto da falta ou da elevação inadequada da laringe e dos movimentos de anteriorização afetam o processo deglutição e promovem a penetração da laringe e a aspiração traqueal, o que caracteriza a disfagia.


Introduction: Swallowing is given through a sequence of synchronous movements, being those of the pharyngeal phase the elevation and anteriorization of the larynx. Aim: Analyzing the laryngeal movements during deglutition and to verifying its impact on airway protection. Methods: Retrospective descriptive studies approved by Ethical Committees in Research through the protocols numbers 2013/008 and 362.826, by analyzing the image database. Fifty-two video fluoroscopic swallowing studies were analyzed, 26 from males and 26 from females with average age of 76 years. The exams were carried out over one year at a Radiology and Imaging Service in a Primary Health Center, where two independent assessors evaluated laryngeal movements during deglutition, presence of dysphagia, and airway protection quality with liquid and pasty consistencies. Results: The assessors agreed in all analyzes performed. Among the statistically significant laryngeal movements, inappropriate laryngeal elevation and anteriorization, i.e., lack of anteriorization, reduced elevation, and incomplete and repeated laryngeal elevation were the most harmful for airway protection. Conclusion: The impact of the lack of or inappropriate laryngeal elevation and anteriorization movements affect the deglutition process and promote laryngeal penetration and tracheal aspiration, which leads to dysphagia.


Introducción: La Deglutición se da través de una secuencia de movimientos sincrónicos, siendo los de la fase faríngea, la elevación y anteriorización de la laringe. Objetivo: Analizar los movimientos de la laringe durante la deglución y verificar su impacto en la protección de las vías respiratorias. Métodos: Estudio descriptivo retrospectivo aprobado por Comités Éticos en Investigación través de los protocolos números 2013/008 y 362,826, por analise de base de datos de imágenes. Han sido analizados 52 degluticiones por examen de videofluoroscopia de la deglutición, siendo 26 del género masculino y 26 del femenino, con una edad promedio de 76 años. Los exámenes se realizaron durante un año en un servicio de radiología e imágenes en un centro de salud primario, donde dos evaluadores independientes evaluaron los movimientos de laringe durante la deglución, la presencia de disfagia y la calidad de la protección de las vías respiratorias. para con las consistencias liquidas y pastosa. Resultados: Los evaluadores acordaron todos los análisis realizados. Entre los movimientos de la laringe estadísticamente significativos, la elevación laríngea inadecuada y la anteriorización, es decir, la carencia de la anteriorización, la elevación reducida, y la elevación laríngea incompleta y repetida eran las más dañosas para la protección de la vía aérea. Conclusión: El impacto de la falta o elevación inadecuada de la laringe y los movimientos de la anteriorización afectan el proceso de deglución y promueven la penetración de la laringe y la aspiración traqueal, que caracteriza la disfagia.


Subject(s)
Humans , Male , Female , Aged , Aged , Fluoroscopy , Deglutition Disorders , Deglutition , Larynx
16.
Rev. cir. (Impr.) ; 71(2): 145-151, abr. 2019. tab, ilus
Article in Spanish | LILACS | ID: biblio-1058247

ABSTRACT

INTRODUCCIÓN: La laringectomía total es el tratamiento de elección del cáncer de laringe avanzado, requiriendo en ocasiones asociar una resección parcial o total de la faringe para su manejo. El defecto faríngeo, puede repararse con colgajos libres o pediculados, teniendo estos últimos la ventaja de ser simples, confiables y resistentes a la radioterapia. OBJETIVO: Presentar los resultados funcionales de una serie de pacientes tratados con faringolaringectomía y reconstrucción faríngea con colgajo pediculado. MATERIAL Y MÉTODO: Se revisaron registros de pacientes con laringectomía total más faringectomía parcial y reconstrucción con colgajo pediculado en el Hospital Regional de Talca entre 2009 y 2017, encontrando 6 casos de los cuales 4 se encontraron vivos al momento de iniciar el estudio. Se realizó videofluoroscopía para evaluar deglución, presencia de estenosis y/o fístulas, además, de evaluación nutricional y encuesta de calidad de vida. RESULTADOS: En el estudio de la deglución por fluoroscopía, todos los pacientes presentaron escasa retención del material de contraste en la hipofaringe y esófago cervical, lo cual está en relación con cambios morfológicos posquirúrgicos, sin afectar significativamente el mecanismo deglutorio. Todos los pacientes se encontraron eutróficos en su evaluación nutricional y sin evidencias de alteración de su calidad de vida secundaria a la deglución. CONCLUSIONES: La reconstrucción faríngea parcial con colgajo pediculado en pacientes con laringectomías totales asociadas a faringectomía parcial permite una deglución adecuada y sin disfagia, con un estado nutricional eutrófico.


INTRODUCTION: Total laryngectomy is the treatment of choice for advanced laryngeal cancer and after radiotherapy failure. In patients with pharyngeal invasion, it is associated with total or partial pharyngectomy, wich defect can be repaired with free or pedicle flaps. AIM: To present a brief series of pedicle flap reconstruction approach after pharyngolaryngectomy in laryngeal carcinoma patients and functional outcomes MATERIALS AND METHOD: We looked at laryngeal cancer patient records who were treated with total laryngectomy with partial pharyngectomy and pharyngeal reconstruction with pedicle flap at "Hospital Regional de Talca" between the years 2009 and 2017, finding 6 cases, 4 of which were alive at the beginning of the study. We analized videoflourocopy swallow studies to assess mechanisms of deglutition, and presence of stenosis or fistulas. We also performed a nutritional state assessment and a quality of life questionnaire. RESULTS: During videodeglutition study, the 4 patients showed minimal contrast swallow delay at hypopharynx and cervical esophagus. All the patients were found eutrophic in their nutritional assessment and with no significant evidence of quality of life disturbances secondary to deglutition state. CONCLUSIONS: Partial pharyngeal reconstruction using pedicle flaps in patients who underwent total laryngectomy with partial pharyngectomy allows to maintain an adequate deglutition without dysphagia, as well as a good nutritional state.


Subject(s)
Humans , Male , Middle Aged , Aged , Pharyngectomy/methods , Surgical Flaps , Pharyngeal Neoplasms/surgery , Laryngeal Neoplasms/surgery , Laryngectomy/methods , Quality of Life , Fluoroscopy/methods , Nutritional Status , Retrospective Studies , Recovery of Function , Deglutition/physiology , Length of Stay
17.
J. bras. nefrol ; 41(1): 89-94, Jan.-Mar. 2019. tab, graf
Article in English | LILACS | ID: biblio-1002420

ABSTRACT

Abstract Introduction: Vascular access (VA) in hemodialysis (HD) is essential to end-stage renal disease (ESRD) patients survival. Unfortunately, after some years in HD program, a significant number of patients may develop VA failure for many reasons. In this situation, arterial venous fistula (AVF) confection or catheters placement in traditional vascular sites (jugular, femoral or subclavian) are not feasible. In this scenario, translumbar tunneled dialysis catheter (TLDC) may be a salvage option. Objectives: To describe placement technic, complications, and patency of 12 TLDC. Methods: A retrospective study was performed to analyze 12 TLDC placement in an angiography suite using fluoroscopic guidance at the University Hospital of the Rio Grande do Norte Federal University from January 2016 to October 2017. The data collected of the total procedures performed consisted of demographic characteristics, success rates, observed complications, patient survival, and catheter patency. Results: All 12 TLDC were placed with success; there were only 2 significant periprocedure complications (major bleeding and extubation failure); 41.6% of patients presented a catheter-related first infection after 98 ± 72.1 (6-201) days, but catheter withdrawal was not necessary, mean total access patency was 315.5 (range 65 - 631) catheter-days, and catheter patency at 3, 6 and 12 months was 91 %, 75%, and 45%. Conclusion: TLDC is an option for patients with VA failure, improving survival and acting as a bridge for renal transplantation.


Resumo Introdução: O acesso vascular (AV) para hemodiálise (HD) é crucial para os pacientes portadores de doença renal crônica (DRC) estágio V. Infelizmente, com o passar dos anos, um percentual não desprezível desses enfermos evolui para falência de AV por diversos motivos, o que impossibilita a confecção de novas fístulas arteriovenosas (FAV) ou o implante de cateteres venosos centrais nos sítios de punções tradicionais. Nesse cenário, o implante de cateteres translombares para hemodiálise (CTLHD) em veia cava inferior ganha destaque como medida salvadora. Objetivos: Relatar uma série de 12 casos de implante de CTLHD, sua técnica de implante, patência e complicações. Métodos: Estudo retrospectivo que analisou 12 implantes de CTLHD por radiologista intervencionista no setor de hemodinâmica do Hospital Universitário da Universidade Federal do Rio Grande do Norte (UFRN), no período de janeiro/2016 a outubro/2017. Os dados coletados consistiram em: características demográficas da população estudada, taxa de sucesso, complicações observadas, sobrevida dos pacientes, patência do cateter e desfechos clínicos. Resultados: Todos os 12 CTLHD foram implantados e utilizados com sucesso; ocorreram apenas 2 complicações associadas ao procedimento (sangramento e falha na extubação); 41,6% dos pacientes apresentaram infecção relacionada ao cateter após 98 ± 72,1 dias (6-201 dias), mas não houve necessidade de remoção; e a patência foi de 315,5 cateteres-dia (65-631 dias). Conclusão: O CTLHD é uma opção para pacientes com falência de acesso vascular, prolongando a sobrevida dos pacientes e atuando como ponte para o transplante renal.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Vascular Diseases/etiology , Vena Cava, Inferior/surgery , Catheterization, Central Venous/methods , Catheters, Indwelling/adverse effects , Renal Dialysis , Central Venous Catheters/adverse effects , Kidney Failure, Chronic/therapy , Lumbosacral Region/blood supply , Fluoroscopy , Feasibility Studies , Retrospective Studies , Arteriovenous Fistula/complications , Kidney Transplantation , Treatment Outcome , Hemorrhage/etiology
18.
Rev. bras. cir. cardiovasc ; 34(1): 48-56, Jan.-Feb. 2019. tab, graf
Article in English | LILACS | ID: biblio-985235

ABSTRACT

Abstract Objective: Over the past 10 years, the rate of patients who have undergone coronary artery bypass graft (CABG) surgery has increased twofold in cases of coronary angiography. Today, transradial access is the first choice for coronary angiography. We aimed to compare the efficacy and reliability of radial versus femoral access for coronary angiography in post-CABG surgery in this study. Methods: Data from 442 patients who underwent post-CABG surgery between 2012-2017 were retrospectively compared. The right radial route was used in 120 cases, the left radial route in 148, and femoral route in 174. These three pathways were compared in terms of procedure time and fluoroscopy time, efficacy, and complication development. Comparisons among the three groups were performed with Bonferroni test for continuous variables and chi-square or Fisher's exact test for nominal variables as a binary. Results: Comparison results indicate that femoral access was better than left radial access and the left radial access was better than right radial access in terms of fluoroscopy time (10.71±1.65, 10.94±1.25, 16.12±5.28 min, P<0.001) and total procedure time (17.28±1.68, 17.68±2.34, 23.04±5.84 min, P<0.001). The left radial pathway was the most effective way of viewing left internal mammary artery (LIMA). No statistically significant differences were found among the three groups in other graft visualizations, all minor complications, total procedure and fluoroscopy time "Except LIMA imaging". Mortality due to processing was not observed in all three groups. Conclusion: The left radial route is preferred over right radial access for post-CABG angiography because the left radial pathway is close to the LIMA and is similar to the femoral pathway. In LIMA graft imaging, right radial access is a reliable route, even though it is not as effective as other pathways. We hope that the right radial pathway will improve with physician experience and innovations.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Coronary Artery Bypass/methods , Coronary Angiography/methods , Radial Artery/surgery , Femoral Artery/surgery , Mammary Arteries/surgery , Aorta/diagnostic imaging , Time Factors , Fluoroscopy/methods , Cardiac Catheterization/methods , Reproducibility of Results , Retrospective Studies , Analysis of Variance , Treatment Outcome , Radial Artery/diagnostic imaging , Femoral Artery/diagnostic imaging , Operative Time , Mammary Arteries/diagnostic imaging
19.
J. health med. sci. (Print) ; 5(1): 61-66, Ene-Mar. 2019. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1151902

ABSTRACT

La reducción cerrada y la fijación percutánea ha sido el gold standard para las fracturas supracondíleas de Gartland tipo II y III. La técnica de enclavado percutáneo transfocal endomedular (TEPTE) ha surgido como alternativa quirúrgica con los beneficios de no lesionar nervios importantes en la región del codo. El objetivo del presente estudio fue comparar los resultados funcionales y estéticos de niños con diagnóstico de fracturas supracondíleas de húmero Gartland tipo II y III, tratados con la TEPTE y la técnica de fijación cruzada (TFC). Se realizó un estudio retrospectivo, observacional, transversal, durante los meses de enero de 2017 a mayo de 2018 de niños con fracturas supracondíleas, tratados con el TEPTE (grupo uno) y TFC (grupo dos). Evaluamos la funcionalidad y la deformación mediante la escala de Flynn. Para el análisis estadístico, se utilizó el test Mann-Whitney para muestras independientes en el programa SPSS. Fue considerado como significativo valores de como p ≤ 0,05. Los resultados demostraron un valor de 4,500 con un p = 0,000, evidenciando diferencias significativas entre los resultados de ambas técnicas respecto a la perdida de movilidad y el ángulo de transporte, a favor de la TFC.


Closed reduction and percutaneous fixation has been the gold standard for Gartland supracondylar fractures type II and III. Percutaneous transfocal intramedullary nailing (TEPTE) has emerged as a surgical alternative with the benefits of not damaging important nerves. The aim of the present study is to compare the functional and aesthetic results of children diagnosed with Gartland humerus supracondylar fractures type II and III, treated with TEPTE and crossed fixation. A retrospective, observational, transverse cohort study was conducted during the months of January 2017 to May 2018 of children with supracondylar fractures, treated with TEPTE (group 1) and cross-fixation (group 2). We evaluate functionality and deformation using the Flynn Scale. For statistical analysis, the Mann-Whitney test was used for independent samples in the SPSS program. Values of p ≤ 0.05 were considered significant. The results showed a value of 4,500 with a p = 0.000, as p≤0.05, it indicates that there are significant differences between the results of both techniques, for the loss of mobility and the transport angle, in favor of the crossed technique, so that we conclude not TEPTE about crosslinking.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Fracture Fixation, Internal/instrumentation , Humeral Fractures/surgery , Fluoroscopy/methods , Cross-Sectional Studies , Retrospective Studies , Follow-Up Studies , Ecuador , Fracture Fixation, Internal/methods , Humeral Fractures/diagnostic imaging , Humerus
20.
Clinical Pain ; (2): 59-64, 2019.
Article in English | WPRIM | ID: wpr-811494

ABSTRACT

OBJECTIVE: This study evaluated the feasibility of ultrasound-guided lumbar nerve root block (LNRB) and S1 nerve root block by identifying spread patterns via fluoroscopy in cadavers.METHOD: A total of 48 ultrasound-guided injections were performed in 4 fresh cadavers from L1 to S1 roots. The target point of LNRB was the midpoint between the lower border of the transverse process and the facet joint at each level. The target point of S1 nerve root block was the S1 foramen, which can be visualized between the median sacral crest and the posterior superior iliac spine, below the L5-S1 facet joint. The injection was performed via an in-plane approach under real-time axial view ultrasound guidance. Fluoroscopic validation was performed after the injection of 2 cc of contrast agent.RESULTS: The needle placements were correct in all injections. Fluoroscopy confirmed an intra-foraminal contrast spreading pattern following 41 of the 48 injections (85.4%). The other 7 injections (14.6%) yielded typical neurograms, but also resulted in extra-foraminal patterns that occurred evenly in each nerve root, including S1.CONCLUSION: Ultrasound-guided injection may be an option for the delivery of injectate into the S1 nerve root, as well as lumbar nerve root area.


Subject(s)
Cadaver , Fluoroscopy , Injections, Spinal , Lumbosacral Region , Methods , Needles , Spinal Nerve Roots , Spine , Ultrasonography , Zygapophyseal Joint
SELECTION OF CITATIONS
SEARCH DETAIL