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1.
Int J Sports Med ; 41(1): 3-11, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31791089

RESUMO

This study evaluated the morphological changes of the lower limb and associated hemodynamic responses to different lower-body compression pressures (COMPs) in physically active, healthy individuals at rest. Each of the 32 participants underwent three trials with three different degrees of lower-body compression applied: "Low" (2.2±1.4 mmHg), "Medium" (12.9±3.9 mmHg), and "High" (28.8±8.3 mmHg). In each COMP, a cross-sectional area of leg muscles (CSAmuscle), subcutaneous fat (CSAfat), superficial vessels (SupV), deep arteries (DA), and deep veins (DV) at the calf, knee, and thigh levels were measured using magnetic resonance imaging (MRI). Additionally, blood pressure (BP), heart rate (HR), cardiac output (CO), stroke volume (SV), and systemic vascular resistance (SVR) were measured using Doppler ultrasound (USCOM®). With High COMP, calf CSAmuscle and SupV were smaller (p<0.01), whereas DA and DV were larger (p<0.05). Calf CSAfat, however, was similar among all COMPs. There were no major changes in CSAmuscle and CSAfat at knee and thigh levels. CO (3.2±0.9 L/min) and SV (51.9±16.4 mL) were higher (p<0.05) only with High COMP, but other hemodynamic variables showed no significant changes across different COMPs. The High COMP at the lower limb induces leg morphological changes and increases associated hemodynamic responses of physically active healthy individuals at rest.


Assuntos
Hemodinâmica/fisiologia , Extremidade Inferior/fisiologia , Meias de Compressão , Artérias/diagnóstico por imagem , Artérias/fisiologia , Pressão Sanguínea/fisiologia , Estudos Cross-Over , Feminino , Frequência Cardíaca/fisiologia , Humanos , Extremidade Inferior/irrigação sanguínea , Extremidade Inferior/diagnóstico por imagem , Imagem por Ressonância Magnética , Masculino , Músculo Esquelético/irrigação sanguínea , Músculo Esquelético/diagnóstico por imagem , Músculo Esquelético/fisiologia , Volume Sistólico/fisiologia , Gordura Subcutânea/irrigação sanguínea , Gordura Subcutânea/diagnóstico por imagem , Gordura Subcutânea/fisiologia , Ultrassonografia Doppler , Resistência Vascular/fisiologia , Veias/diagnóstico por imagem , Veias/fisiologia , Adulto Jovem
2.
Urology ; 135: 136-138, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31568794

RESUMO

Neonatal testicular torsion is an uncommon event that rarely results in testicular salvage. We present 2 cases in the neonatal intensive care unit of extremely premature males (<28 weeks gestation) with witnessed testicular torsion, prompt diagnosis, surgical detorsion, and good short-term outcomes. Although an uncommon scenario, we present the feasibility of surgery in the extremely premature infant and potential for testicular salvage.


Assuntos
Lactente Extremamente Prematuro , Doenças do Prematuro/cirurgia , Terapia de Salvação/métodos , Torção do Cordão Espermático/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Estudos de Viabilidade , Humanos , Recém-Nascido , Doenças do Prematuro/diagnóstico , Unidades de Terapia Intensiva Neonatal , Masculino , Torção do Cordão Espermático/diagnóstico , Testículo/diagnóstico por imagem , Testículo/cirurgia , Resultado do Tratamento , Ultrassonografia Doppler
3.
Lancet Haematol ; 7(1): e61-e72, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31818728

RESUMO

Sinusoidal obstructive syndrome, also known as hepatic veno-occlusive disease, is a potentially life-threatening complication that occurs in children undergoing haemopoietic stem-cell transplantation (HSCT). Differences in the incidence of genetic predisposition and clinical presentation of sinusoidal obstructive syndrome between children and adults have rendered the historical Baltimore and Seattle diagnostic criteria insufficient for children. In 2017, the European Society for Blood and Marrow Transplantation (EBMT) proposed the first paediatric diagnostic and severity grading guidelines for sinusoidal obstructive syndrome, intended for implementation across European centres. However, universally accepted paediatric criteria are needed to ensure prompt diagnosis, definitive treatment, and improved outcomes for children, adolescents, and young adults with sinusoidal obstructive syndrome, and to facilitate international clinical research collaboration. We convened an international panel of multidisciplinary experts including physicians with expertise in HSCT, paediatric intensive care, nephrology, hepatology, radiology, pathology, and transfusion medicine; HSCT advanced-practice providers and medical trainees; pharmacists; and translational and basic science researchers from the Pediatric Acute Lung Injury and Sepsis Investigators Network, the EBMT, the Pediatric Blood and Marrow Transplant Consortia, and several other institutions with extensive experience in sinusoidal obstructive syndrome. Panellists convened at The University of Texas, MD Anderson Cancer Center (Houston, TX, USA) in February, 2019, to evaluate the available evidence. In this expert position statement paper, we provide consensus recommendations for the international implementation of guidelines for the diagnosis, severity grading, and treatment of sinusoidal obstructive syndrome among children, adolescents, and young adults. We endorse universal adoption of paediatric diagnostic guidelines for sinusoidal obstruction syndrome as proposed by the EBMT, and provide implementation guidance for standardisation across centres; we have further proposed adjunctive use of age-appropriate organ-specific toxicity criteria for severity grading and provided prophylaxis and treatment considerations among children and adolescent and young adult patients. Key recommendations include: (1) liver biopsy, portal venous wedge pressure, and reversal of portal venous flow on Doppler ultrasonography should not be used for the routine diagnosis of sinusoidal obstructive syndrome in children, adolescents, and young adults; (2) platelet refractoriness can be defined as a corrected count increment of less than 5000-7500 following at least two sequential ABO-compatible fresh platelet transfusions; (3) hepatomegaly is best defined as an absolute increase of at least 1 cm in liver length at the midclavicular line; and if a baseline measurement is not available, hepatomegaly can be defined as greater than 2 SDs above normal for age; and (4) the presence and volume of ascites can be categorised as mild (minimal fluid by liver, spleen, or pelvis), moderate (<1 cm fluid), or severe (fluid in all three regions with >1 cm fluid in at least two regions).


Assuntos
Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Hepatopatia Veno-Oclusiva , Adolescente , Bilirrubina/análise , Biomarcadores/análise , Criança , Colagogos e Coleréticos/uso terapêutico , Feminino , Fibrinolíticos/uso terapêutico , Hepatopatia Veno-Oclusiva/diagnóstico , Hepatopatia Veno-Oclusiva/terapia , Humanos , Masculino , Polidesoxirribonucleotídeos/uso terapêutico , Fatores de Risco , Índice de Gravidade de Doença , Ultrassonografia Doppler , Ácido Ursodesoxicólico , Adulto Jovem
4.
Int Braz J Urol ; 46(1): 92-100, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31851465

RESUMO

PURPOSE: To evaluate the role of contrast-enhanced ultrasound (CEUS) in differentiating bland thrombus from tumor thrombus of the inferior vena cava (IVC) in patients with renal cell carcinoma (RCC). MATERIALS AND METHODS: We retrospectively investigated 30 consecutive patients who underwent robot-assisted radical nephrectomy with IVC thrombectomy and had pathologically confirmed RCC. All patients underwent US and CEUS examination. Two offline readers observed and recorded thrombus imaging information and enhancement patterns. Sensitivity, specificity, accuracy, positive predictive value and negative predictive value for bland thrombus were assessed. RESULTS: Of the 30 patients, no adverse events occurred during administration of the contrast agent. Early enhancement of the mass within the IVC lumen on CEUS was na indicator of tumor thrombus. Bland thrombus showed no intraluminal flow on CEUS. There were eight (26.7%) patients with bland thrombus, including three level II, two level III, and three level IV. There were three cases with cephalic bland thrombus and five cases with caudal bland thrombus. Three caudal bland thrombi extended to the iliac vein and underwent surgical IVC interruption. Based on no intraluminal flow, for bland thrombus, CEUS had 87.5% sensitivity, 100% specificity, 96.7% accuracy, 100% positive predictive value and 95.6% negative predictive value. CONCLUSION: Our study demonstrates the potential of CEUS in the differentiation of bland and tumor thrombus of the IVC in patients with RCC. Since CEUS is an effective, inexpensive, and non-invasive method, it could be a reliable tool in the evaluation of IVC thrombus in patients with RCC.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Neoplasias Renais/diagnóstico por imagem , Ultrassonografia Doppler/métodos , Veia Cava Inferior/diagnóstico por imagem , Trombose Venosa/diagnóstico por imagem , Idoso , Carcinoma de Células Renais/patologia , Carcinoma de Células Renais/cirurgia , Meios de Contraste , Feminino , Humanos , Neoplasias Renais/patologia , Neoplasias Renais/cirurgia , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Reprodutibilidade dos Testes , Estudos Retrospectivos , Trombectomia/métodos , Carga Tumoral , Veia Cava Inferior/patologia , Veia Cava Inferior/cirurgia , Trombose Venosa/patologia , Trombose Venosa/cirurgia
5.
Medicine (Baltimore) ; 98(50): e18249, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31852092

RESUMO

RATIONALE: Cancer and chemotherapy individually confer hypercoagulability and increased risks of thrombosis. Most thromboembolic complication after breast cancer chemotherapy was venous thrombosis after multiagent chemotherapy. Arterial thrombosis is extremely rare in early breast cancer patients receiving adjuvant chemotherapy. PRESENTING CONCERNS: A 55-year-old woman with right breast cancer presented to the emergency department with sudden pain, numbness, and swelling in her left hand. She underwent breast conserving surgery and sentinel lymph node biopsy 2 months before the visit. She received the second cycle of adjuvant Adriamycin-cyclophosphamide chemotherapy 5 days before. INTERVENTIONS: Computed tomography angiography revealed acute arterial thrombosis in the left brachial, radial, and ulnar arteries. Unfractionated heparin was initiated immediately, followed by brachial and radial-ulnar thrombectomy, restoring perfusion to the extremity. The postoperative course was uncomplicated; she was discharged on warfarin at a daily dose of 4 mg. OUTCOMES: Chemotherapy was discontinued. Anticoagulation with warfarin was continued. She subsequently received adjuvant endocrine therapy with an aromatase inhibitor and adjuvant radiotherapy. MAIN LESSONS: Despite the low risks of arterial thrombosis in breast cancer, it is a devastating complication with significant morbidity and mortality. Thromboprophylaxis should be considered in those at risk. Immediate anticoagulant therapy and surgical intervention should be considered in affected cases.


Assuntos
Artéria Braquial , Neoplasias da Mama/tratamento farmacológico , Ciclofosfamida/efeitos adversos , Doxorrubicina/efeitos adversos , Artéria Radial , Trombose/induzido quimicamente , Artéria Ulnar , Doença Aguda , Neoplasias da Mama/diagnóstico , Quimioterapia Adjuvante/efeitos adversos , Angiografia por Tomografia Computadorizada , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico , Quimioterapia Combinada/efeitos adversos , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Trombectomia/métodos , Trombose/diagnóstico , Trombose/cirurgia , Ultrassonografia Doppler
6.
J. Transcatheter Interv ; 27: 1-5, dez., 2019. tab.
Artigo em Inglês | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1047709

RESUMO

BACKGROUND: The radial approach has been increasingly used worldwide for diagnostic and therapeutic cardiac catheterization. The radial artery caliber is one of the limitations of its use. The objective of this study was to describe the anatomy of the radial and ulnar arteries, as well as to develop a radial artery diameter prediction score using clinical and anthropometric criteria. METHODS: Using vascular ultrasound with bilateral radial and ulnar artery measurements, 1,180 patients who underwent cardiac catheterization or angioplasty procedures were prospectively evaluated. Using the patients' variables, a radial artery diameter prediction score was developed in a cross-sectional fashion, using half of the sample. The score was validated with the half not used for deriving the model. RESULTS: A total of 1,180 patients were evaluated. The mean internal diameter of the right and left radial arteries was 2.69±0.69mm and 2.53±0.64mm (p<0.01), and the mean internal diameter of the right and left ulnar arteries was 2.09±0.59mm and 2.10±0.60mm (p=0.76), respectively. The factors that positively correlated with arterial size were male sex, previous catheterization, height, weight, and body surface area. The risk score developed using clinical and anthropometric variables had unsatisfactory discriminatory capacity (c-statistics 0.64). CONCLUSION: The right radial artery is the largest forearm artery in most cases. Men and patients who had previously undergone catheterization have a larger mean radial artery diameter. The artery diameter prediction score has modest accuracy for clinical use. (AU)


Assuntos
Cateterismo Cardíaco , Artéria Radial/diagnóstico por imagem , Ultrassonografia Doppler , Anatomia
7.
Vasc Health Risk Manag ; 15: 449-461, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31695400

RESUMO

Splanchnic vein thrombosis (SVT) including portal, mesenteric, splenic vein thrombosis and the Budd-Chiari syndrome, is a manifestation of unusual site venous thromboembolism. SVT presents with a lower incidence than deep vein thrombosis of the lower limbs and pulmonary embolism, with portal vein thrombosis and Budd-Chiari syndrome being respectively the most and the least common presentations of SVT. SVT is classified as provoked if secondary to a local or systemic risk factor, or unprovoked if the causative trigger cannot be identified. Diagnostic evaluation is often affected by the lack of specificity of clinical manifestations: the presence of one or more risk factors in a patient with a high clinical suspicion may suggest the execution of diagnostic tests. Doppler ultrasonography represents the first line diagnostic tool because of its accuracy and wide availability. Further investigations, such as computed tomography and magnetic resonance angiography, should be executed in case of suspected thrombosis of the mesenteric veins, suspicion of SVT-related complications, or to complete information after Doppler ultrasonography. Once SVT diagnosis is established, a careful patient evaluation should be performed in order to assess the risks and benefits of the anticoagulant therapy and to drive the optimal treatment intensity. Due to the low quality and large heterogeneity of published data, guidance documents and expert opinion could direct therapeutic decision, suggesting which patients to treat, which anticoagulant to use and the duration of treatment.


Assuntos
Veias Mesentéricas , Veia Porta , Veia Esplênica , Trombose Venosa , Anticoagulantes/uso terapêutico , Humanos , Veias Mesentéricas/diagnóstico por imagem , Veias Mesentéricas/fisiopatologia , Veia Porta/diagnóstico por imagem , Veia Porta/fisiopatologia , Valor Preditivo dos Testes , Fatores de Risco , Circulação Esplâncnica , Veia Esplênica/diagnóstico por imagem , Veia Esplênica/fisiopatologia , Resultado do Tratamento , Ultrassonografia Doppler , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/tratamento farmacológico , Trombose Venosa/epidemiologia , Trombose Venosa/fisiopatologia
8.
Medicine (Baltimore) ; 98(46): e17965, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31725659

RESUMO

To investigate the value of transvaginal three-dimensional (3D) power Doppler ultrasound in the diagnosis of benign and malignant endometrial diseases.A total of 144 patients with endometrial thickness ≥4 mm were enrolled. Endometrial thickness was measured by transvaginal 3D B-mode ultrasound, while blood signals were detected by 3D power Doppler ultrasound. Endometrial volume (EV), vascularization index (VI), blood flow index (FI), and vascularization flow index (VFI) were calculated. All histopathological diagnoses of endometrium were obtained.There were 86 benign and 58 malignant cases. There were statistically significant differences between two groups in endometrial thickness [1.50 (1.30, 1.80) vs 2.30 (1.80, 3.20), P < .001], EV [10.62 (7.14, 17.36) vs 28.94 (9.59, 67.96), P < .001], VI [6.07 (3.61, 10.33) vs 12.01 (7.50, 19.87), P = .001], FI [27.42 (24.45, 31.33) vs 32.98 (30.22, 35.40), P < .001], and VFI [1.58 (0.92, 3.32) vs 4.28 (2.24, 6.41), P < 0.001]. Sensitivity and specificity of endometrial thickness were relatively high [endometrial thickness (86.2%, 76.1%), EV (48.3%, 97.7%), VI (72.4%, 69.8%), FI (72.4%, 74.4%), and VFI (72.4%, 74.4%)]. There was no significant difference in any parameters of the endometrium between different stages (Ia, Ib, II, and above) or phases (G1, G2, and G3) of Ia phase of endometrial cancer (all P > .05).Transvaginal 3D power Doppler ultrasound is valuable in the differentiating benign and malignant endometrial lesions.


Assuntos
Ultrassonografia Doppler/métodos , Doenças Uterinas/diagnóstico , Doenças Uterinas/patologia , Adulto , Idoso , Endométrio/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Sensibilidade e Especificidade , Doenças Uterinas/diagnóstico por imagem
9.
Medicine (Baltimore) ; 98(45): e17877, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31702657

RESUMO

RATIONALE: Budd-Chiari syndrome (BCS), which causes congestive hepatopathy and aggravates cirrhosis, is typically treated by interventional angioplasty to ameliorate blood flow. X-ray venography is useful for the evaluation of inferior vena cava (IVC) stenosis and determination of treatment timing, but it is invasive and thus unsuitable for repeated examinations. The development of a simple method for the prediction of IVC stenosis would reduce the burden on patients with BCS. PATIENT CONCERNS: We report here our experience of 2 patients with BCS who underwent percutaneous transluminal angioplasty (PTA). The first patient was a 39-year-old male who underwent PTA to expand his stenotic IVC. The second patient was a 19-year-old male who underwent PTA 3 times due to restenosis of his IVC. DIAGNOSES: Both patients were diagnosed with BCS with severe obstruction of the IVC. INTERVENTIONS: We evaluated the hepatic vein (HV) waveform by Doppler ultrasonography and measured liver stiffness (LS) using transient elastography (TE) before and after PTA. OUTCOMES: In case 1, the phasic oscillation of the HV waveform recovered and the LS value decreased after PTA. Both improvements were maintained for ∼3 years, reflecting the long-term patency of the IVC. In case 2, the HV waveform and the LS value improved temporarily after PTA, but then deteriorated gradually. Monitoring of the HV waveform and LS value allowed retreatment prior to total occlusion of the IVC and abrogated the risk of intravascular needle puncture. LESSONS: Monitoring of the HV waveform and the LS value enables safe management of patients with BCS who may require PTA.


Assuntos
Síndrome de Budd-Chiari/diagnóstico por imagem , Constrição Patológica/diagnóstico por imagem , Técnicas de Imagem por Elasticidade/métodos , Veias Hepáticas/diagnóstico por imagem , Adulto , Angioplastia com Balão , Síndrome de Budd-Chiari/complicações , Síndrome de Budd-Chiari/cirurgia , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Veias Hepáticas/cirurgia , Humanos , Masculino , Ultrassonografia Doppler , Adulto Jovem
10.
Mymensingh Med J ; 28(4): 727-733, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31599233

RESUMO

Cirrhotic patients have hepatic vein waveform abnormalities (HVWA). Both Doppler ultrasonography of hepatic venous wave form (HVWF) and portal Doppler flowmetry (PDF) can non invasively recognize hepatic vein wave form abnormalities and determine severity of esophageal varices. Here we applied cross sectional study and found out the relation between HVWF and PDF and duration of the study from July 2016 to June 2017 in a tertiary Medical College Hospital, Bangladesh. 49 purposively taken diagnosed, hospital admitted, cirrhotic patients were included. Face to face interview and reviewing of records were the source of data and it was analyzed by SPSS windows version-12 software programs. At first, local ethical committee approved the study protocol, p<0.05 was statistically significant and 95% was confidence interval. Esophagogastroduodenoscopy is the gold standard for the diagnosis of esophageal varices. Alternative diagnostic investigations would be either HVWF or PDF. HVWF were normal triphasic. Abnormal biphasic and monophasic PDF consisted of the maximum values of portal flow velocity, portal vein flow volume, diameter of the portal vein, and congestion index. Small and large varices were the easiest form of endoscopic grading of esophageal varices. No clinical or echocardiographic feature of right sided heart failure had found in any patient. Both HVWF and PDF can certainly demonstrate the presence of varices but only HVWF detected severity of esophageal varices - monophasic wave (60.47%) in Doppler USG which signified (<0.05) large varices (67.44%) in endoscopy and in biphasic wave (31.53%) in Doppler USG which signified small varices (32.66%) in endoscopy. Patients who developed varices had portal vein diameter (PVD) and congestion index (CI) were higher (p<0.02) and portal vein velocity (PVV) was lower (p<0.05) than whom did not develop varices, but severity of varices could not be detected. Portal vein flow volume (PVFV) did not signify the presence or severity of varices. Moderately positive correlation (correlation co-efficient was 0.0064) was found between Doppler USG of HVWF and esophagogastroduodenoscopic in severity detection varices. In determination of severity of esophageal varices in patients with liver cirrhosis Hepatic venous Doppler sonography plays more vital role than PDF.


Assuntos
Varizes Esofágicas e Gástricas/diagnóstico por imagem , Cirrose Hepática , Reologia , Ultrassonografia Doppler , Bangladesh , Estudos Transversais , Humanos , Veia Porta
12.
Niger Postgrad Med J ; 26(4): 223-229, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31621662

RESUMO

Context: Pre-eclampsia (PrE), a clinical syndrome characterised by elevated blood pressure arising after 20 weeks of gestation, is a leading cause of maternal death worldwide. We evaluated the role of uterine artery Doppler (UtAD) in screening for PrE among unselected, pregnant women. Methodology: This was a prospective cohort study of 170 healthy gravid women between 18 and 26 weeks of gestation recruited consecutively from the Antenatal Clinic of Braithwaite Memorial Specialist Hospital, Port-Harcourt, Nigeria, between July 2016 and June 2017. All had UtAD scans with an abnormal result defined as pulsatility index (PI), resistance index or systolic/diastolic (S/D) ratio >95th centile for gestational age or proto-diastolic notching. Outcome was obtained from antenatal records. Data were analysed using Statistical Package for Social Sciences, version 20 at statistical significance level of P < 0.05. Results: The prevalence of PrE was 7.6%. There was significant association between an abnormal PI (χ2 = 16.29, P = 0.00), S/D ratio (χ2 = 8.55, P = 0.00) and the combined result (χ2 = 11.5, P = 0.007) with subsequent PrE. The highest sensitivity (53.8%) was obtained for the combined result with specificity, negative predictive value (NPV) and positive predictive value of 86.6%, 95.8% and 25%, respectively, area under the curve (AUC) of 0.71 (95% confidence interval [CI]: 0.534-0.871). A normal result had a very high NPV for all indices. The accuracy for the prediction of severe PrE was greater for all indices being highest for the combined result AUC of 0.830 (95% CI: 0.624-1.000; P = 0.01). Conclusion: Abnormal UtAD indices were associated with PrE and may be used in PrE screening.


Assuntos
Pré-Eclâmpsia/diagnóstico por imagem , Ultrassonografia Doppler/métodos , Artéria Uterina/diagnóstico por imagem , Útero/irrigação sanguínea , Adolescente , Adulto , Feminino , Idade Gestacional , Voluntários Saudáveis , Humanos , Nigéria , Valor Preditivo dos Testes , Gravidez , Primeiro Trimestre da Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Fluxo Pulsátil/fisiologia , Curva ROC , Ultrassonografia Pré-Natal , Adulto Jovem
13.
Plast Reconstr Surg ; 144(4): 812-819, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31568281

RESUMO

BACKGROUND: Preoperative vascular mapping has emerged as an excellent adjunct to perforator flap surgery, improving operative time while aiding the surgeon in the selection of the ideal perforator. This study evaluated the effect of preoperative vascular mapping by magnetic resonance imaging to identify tissue for a superior gluteal artery perforator (SGAP) flap on total operative time and compared radiologic mapping by magnetic resonance imaging with Doppler ultrasonography for perforator localization. The authors also investigated whether drawing the flap according to magnetic resonance imaging perforator localization or tissue availability affected the outcome of the donor site. METHODS: A prospective study was performed on patients undergoing SGAP flap breast reconstruction. Patients were randomized into two groups. One group received preoperative magnetic resonance imaging for flap tissue planning based on localization of the perforator. The other group received flap planning based on tissue availability and then underwent external Doppler ultrasonography to identify the dominant perforator. An ad hoc outcome scale was created to evaluate outcomes of the donor sites. RESULTS: Preoperative vascular mapping by magnetic resonance imaging or external Doppler ultrasonography was performed the day of surgery on 35 and 27 patients, respectively. The mean flap elevation times of the imaging patients versus the ultrasonography patients were 252 and 228 minutes, respectively. The differences between flap elevation times and cosmetic outcomes for the two patient groups were not significant. CONCLUSION: The authors' findings indicate that the use of magnetic resonance imaging for SGAP flap planning did not reduce operative time, and that donor-site outcomes were not affected by the modality used for preoperative perforator mapping. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II.


Assuntos
Imagem por Ressonância Magnética , Mamoplastia/métodos , Retalho Perfurante/irrigação sanguínea , Ultrassonografia Doppler , Adulto , Idoso , Nádegas/irrigação sanguínea , Nádegas/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Período Pré-Operatório , Estudos Prospectivos , Procedimentos Cirúrgicos Vasculares/métodos
16.
Molecules ; 24(18)2019 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-31547271

RESUMO

Diosmin is a natural compound with a wide range of biological activity, e.g., it improves lymphatic drainage, supports microcirculation, and increases venous tone, and venous elasticity, hence, it is applied in the pharmacotherapy of chronic venous disorders (CVD). The aim of this study was to assess the correlation between diosmin administration (2 × 600 mg daily) in patients suffering from CVD and the levels of selected factors influencing angiogenesis, which are involved in CVD pathophysiology. Thirty-five CVD patients were examined. Levels of plasma tumor necrosis factor alpha (TNF alpha), vascular endothelial growth factor (VEGF-A and VEGF-C); angiostatin, interleukin 6 (IL-6), fibroblast growth factor 2 (FGF2); and plasminogen (PLG) were measured with an Elisa assay before and after three months of diosmin administration. The clinical symptoms of CVD were monitored using ultrasound images, echo Doppler assay, visual analogue scale (VAS), and measurement of the leg circumference. The average content of TNF alpha, VEGF-C, VEGF-A IL-6, and FGF2 decreased after the therapy with diosmin in a significant manner; with p < 0.001, p < 0.05, p < 0.05, p < 0.01, and p < 0.01, respectively, and a significant (p < 0.05) increase in the plasma angiostatin level after the three-month treatment was found. A significant (p < 0.05) decrease in edema and the average leg circumference of the patients was observed after the therapy. Diosmin influences the angiogenic and inflammatory mechanisms involved in the pathophysiology of edema presented in patients with a different class of CVD.


Assuntos
Diosmina/farmacologia , Neovascularização Fisiológica/efeitos dos fármacos , Doenças Vasculares/tratamento farmacológico , Adulto , Angiostatinas/sangue , Doença Crônica , Feminino , Fator 2 de Crescimento de Fibroblastos/sangue , Humanos , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Neovascularização Fisiológica/fisiologia , Resultado do Tratamento , Fator de Necrose Tumoral alfa/sangue , Ultrassonografia Doppler , Varizes/diagnóstico por imagem , Varizes/tratamento farmacológico , Varizes/fisiopatologia , Doenças Vasculares/sangue , Doenças Vasculares/diagnóstico por imagem , Fator A de Crescimento do Endotélio Vascular/sangue , Fator C de Crescimento do Endotélio Vascular/sangue , Veias/diagnóstico por imagem , Veias/fisiopatologia
17.
Nepal J Ophthalmol ; 11(21): 86-90, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31523073

RESUMO

BACKGROUND: Ocular ischemic syndrome is not a common condition so most of these cases are often misdiagnosed or treated as a different entity. Therefore, it is very important for the ophthalmologists to have this condition in mind as a differential so that the patients can be diagnosed and treated as early as possible. A 42 years female presented with painless, progressive diminution of vision in right eye over the period of 1 month. She doesn't give any history of redness of eyes, fever or trauma. There is no history of diabetes mellitus or hypertension as well. On examination, vision in right and left eyes was 1.78 and 0.30 Log Mar Units respectively. On anterior segment examination, revascularization of iris (1o 4 'o'clock hrs) in right eye was noted. On dilated fund us copy, revascularization of disc (1/3rd) was present in right eye. Cotton wool spots blot hemorrhages and micro aneurysms were also noted in right eye. Likewise, attenuation of arteries were noted on both sides. Fund us fluorescent angiography revealed delayed artery covetous and venous phase. Carotid Doppler was done which showed complete occlusion of right common carotid and bilateral internal carotid artery. These findings lead to the diagnosis as ocular ischemic syndrome so she was then referred to the cardiologist who further confirmed that no active intervention was required at present. The patient was planned for right eye pan retinal photocoagulation (PRP) and was completed in 2 sittings and was asked to follow up regularly. CONCLUSION: Early diagnosis and management is very important for uncommon conditions such as ocular ischemic syndrome to prevent further complications.


Assuntos
Artéria Carótida Primitiva , Estenose das Carótidas/complicações , Oftalmopatias/diagnóstico , Olho/irrigação sanguínea , Isquemia/diagnóstico , Retina/diagnóstico por imagem , Adulto , Estenose das Carótidas/diagnóstico , Oftalmopatias/etiologia , Oftalmopatias/cirurgia , Feminino , Angiofluoresceinografia , Fundo de Olho , Humanos , Isquemia/etiologia , Isquemia/cirurgia , Fotocoagulação/métodos , Retina/cirurgia , Síndrome , Ultrassonografia Doppler
19.
Curr Opin Ophthalmol ; 30(6): 407-411, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31503077

RESUMO

PURPOSE OF REVIEW: To summarize recent advances in the diagnosis of giant cell arteritis (GCA). RECENT FINDINGS: Less common manifestations of GCA include corneal edema, proptosis from lacrimal gland ischemia and sensorineuronal hearing loss. Histology studies have suggested that temporal artery biopsies (TAB) with fixed specimen lengths of 15 mm may be adequate to prevent false negative biopsies. In centers with appropriate radiologic expertise, a European rheumatology consensus guideline has proposed Doppler ultrasound as a first-line confirmatory test for GCA in lieu of temporal artery biopsy. Finding extracranial large vessel disease can help to diagnose GCA. Statistical prediction rules can help risk stratify patients with suspected GCA. Age and platelet level when maintained as continuous variables are the strongest predictors for GCA. SUMMARY: GCA can present with diverse ophthalmic and systemic presentations and expedient recognition of same can avoid diagnostic delay and possible vision loss, among other complications. TAB remains the conventional diagnostic standard test for GCA. The use of statistical prediction models and increased expertise in noninvasive imaging techniques such as ultrasound may decrease reliance on TAB, especially in patients determined to be at low risk for GCA.


Assuntos
Arterite de Células Gigantes/diagnóstico , Artérias Temporais/patologia , Biópsia , Diagnóstico Precoce , Humanos , Estudos Retrospectivos , Ultrassonografia Doppler
20.
Rev Med Liege ; 74(9): 484-487, 2019 Sep.
Artigo em Francês | MEDLINE | ID: mdl-31486320

RESUMO

There are few hospitals performing kidney transplantation. Thereby the residency in radiodiagnostics does not allow to master the essential skills of follow up kidney transplantation except in the case of staying in such a transplantation center. Furthermore, in the last 20 years the scientific publications related to kidney transplantation were of 31.001 all medical disciplines combined, from which only 1730 (5,6x%) focused on medical imaging. In the same period in medical journals focused on radiology, there was 216.661 articles from which 642 (0,3x%) about kidney transplantation. Even the development of new medical imaging techniques did not contribute to clinical practice in a meaningful way. Here we will make a reminder of medical imaging techniques and their indications in the follow-up after transplantation, emphasizing the contribution of standard ultrasound and doppler.


Assuntos
Transplante de Rim , Ultrassonografia Doppler , Seguimentos , Humanos , Rim , Ultrassonografia
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