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1.
J Endovasc Ther ; : 15266028231185506, 2023 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-37434379

RESUMEN

BACKGROUND: Current techniques to evaluate computed tomography (CT) foot perfusion in patients with critical limb ischemia use high contrast doses and cannot be used during endovascular procedures. CT perfusion of the foot with intra-arterial contrast injection during endovascular treatment in a hybrid angiography CT suite might solve these problems. PURPOSE: The main objective of this study was to evaluate whether intra-arterial CT foot perfusion using a hybrid CT angiosystem is feasible during endovascular treatment for critical limb ischemia. MATERIAL AND METHODS: This prospective pilot study investigated intraprocedural, intra-arterial CT perfusion of the foot using a hybrid CT angiosystem in 12 patients before and after endovascular treatment for critical limb ischemia. Time to peak (TTP) and arterial blood flow were measured before and after treatment and compared using a paired t test. RESULTS: All 24 CT perfusion maps could be calculated adequately. The contrast volume used for one perfusion CT scan was 4.8 ml. The mean TTP before treatment was 12.8 seconds (standard deviation [SD] 2.8) and the mean TTP posttreatment was 8.4 seconds (SD 1.7), this difference being statistically significant (p=.001). Tendency toward increased blood flow after treatment, 340 ml/min/100 ml (SD 174) vs 514 ml/min/100 ml (SD 366) was noticed (p=.104). The mean effective radiation dose was 0.145 mSv per scan. CONCLUSION: Computed tomography perfusion of the foot with low contrast dose intra-arterial contrast injection during endovascular treatment in a hybrid angiography CT suite is a feasible technique. CLINICAL IMPACT: Intra-arterial CT foot perfusion using a hybrid CT-angiography system is a feasible new technique during endovascular therapy for critical limb ischemia to assess the results of the treament. Future research is necessary in defining endpoints of endovascular treatment and establishing its role in limb salvage prognostication.

2.
Obstet Gynecol ; 2024 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-38954828

RESUMEN

OBJECTIVE: To quantify the association between prophylactic radiologic interventions and perioperative blood loss during cesarean delivery in women with placenta accreta spectrum disorder through a systematic review and network meta-analysis. DATA SOURCES: On January 3, 2023, a literature search was conducted in PubMed, EMBASE, Cochrane Library, and Web of Science. We also checked ClinicalTrials.gov retrospectively. Prophylactic radiologic interventions to reduce bleeding during cesarean delivery involved preoperative placement of balloon catheters, distal (internal or common iliac arteries) or proximal (abdominal aorta), or sheaths (uterine arteries). The primary outcome was volume of blood loss; secondary outcomes were the number of red blood cell units transfused and adverse events. Studies including women who received an emergency cesarean delivery were excluded. METHODS OF STUDY SELECTION: Two authors independently screened citations for relevance, extracted data, and assessed the risk of bias of individual studies with the Cochrane Risk of Bias in Non-randomized Studies of Interventions tool. TABULTATION, INTEGRATION, AND RESULTS: From a total of 1,332 screened studies, 50 were included in the final analysis, comprising 5,962 women. These studies consisted of two randomized controlled trials and 48 observational studies. Thirty studies compared distal balloon occlusion with a control group, with a mean difference in blood loss of -406 mL (95% CI, -645 to -167). Fourteen studies compared proximal balloon occlusion with a control group, with a mean difference of -1,041 mL (95% CI, -1,371 to -710). Sensitivity analysis excluding studies with serious or critical risk of bias provided similar results. Five studies compared uterine artery embolization with a control group, all with serious or critical risk of bias; the mean difference was -936 mL (95% CI, -1,522 to -350). Reported information on adverse events was limited. CONCLUSION: Although the predominance of observational studies in the included literature warrants caution in interpreting the findings of this meta-analysis, our findings suggest that prophylactic placement of balloon catheters or sheaths before planned cesarean delivery in women with placenta accreta spectrum disorder may, in some cases, substantially reduce perioperative blood loss. Further study is required to quantify the efficacy according to various severities of placenta accreta spectrum disorder and the associated safety of these radiologic interventions. SYSTEMATIC REVIEW REGISTRATION: PROSPERO, CRD42022320922.

3.
Knee Surg Sports Traumatol Arthrosc ; 21(7): 1620-5, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22836229

RESUMEN

PURPOSE: The purpose of this study was to evaluate the clinical outcome of all-arthroscopic repair of degenerative subscapularis tendon tears and post-operative structural integrity using magnetic resonance imaging with a short-term follow-up. METHODS: Twenty-one patients were treated all-arthroscopically for a full-thickness degenerative subscapularis tendon tear. Median patient age was 55 years (range, 41-69). Median follow-up was 25 months (range, 15-44). Patients were evaluated prior to surgery and at follow-up: active range of motion, VAS pain, Simple Shoulder Test (SST), and the Disabilities of the Arm, Shoulder, and Hand score (DASH). At final follow-up, the Constant-Murley score was evaluated. RESULTS: Mean active range of motion showed significant post-operative improvement (p < 0.001). VAS pain improved from 8.3 (SD ± 1.3) pre-operatively to 2.7 (SD ± 1.8) post-operatively (<0.001); SST increased from 20 % (SD ± 26) pre-operatively to 83 % (SD ± 27) post-operatively (<0.001); DASH scores improved 67 (SD ± 19) to 18 (SD ± 21) post-operatively (<0.001). Post-operative Constant-Murley score was 79 (SD ± 12). Two patients had failure of the repair on post-operative MRI. Twelve cases (57 %) showed post-operative progression of fatty muscle infiltration. CONCLUSION: All-arthroscopic repair is an effective treatment modality for degenerative subscapularis tendon tears with an anterosuperior tear pattern with good clinical results and high patient satisfaction. Although there was a high tendon-to-bone healing rate, fatty muscle infiltration was progressive in more than half of the patients. LEVEL OF EVIDENCE: Therapeutic case series, Level IV.


Asunto(s)
Artroscopía/métodos , Articulación del Hombro/cirugía , Traumatismos de los Tendones/cirugía , Adulto , Anciano , Evaluación de la Discapacidad , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Rango del Movimiento Articular/fisiología , Rotación , Articulación del Hombro/fisiopatología , Traumatismos de los Tendones/diagnóstico , Traumatismos de los Tendones/fisiopatología , Resultado del Tratamiento
4.
J Matern Fetal Neonatal Med ; 36(2): 2251076, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37673791

RESUMEN

OBJECTIVE: To quantify the association between prophylactic radiologic interventions and perioperative blood loss in women with risk factors for placenta accreta spectrum disorder (PAS). METHODS: We conducted a retrospective nationwide cohort study of women with risk factors for placenta accreta spectrum disorder who underwent planned cesarean section in 69 Dutch hospitals between 2008 and 2013. All women had two risk factors for PAS: placenta previa/anterior low-lying placenta and a history of cesarean section(s). Women with and without ultrasonographic signs of PAS were studied as two separate groups. We compared the total blood loss of women with prophylactic radiologic interventions, defined as preoperative placement of balloon catheters or sheaths in the internal iliac or uterine arteries, with that of a control group consisting of women without prophylactic radiologic interventions using multivariable regression. We evaluated maternal morbidity by the number of red blood cell (RBC) units transfused within 24 h following childbirth (categories: 0, 1-3, >4), duration of hospital admission, and need for intensive care unit (ICU) admission. RESULTS: A total of 350 women with placenta previa/anterior low-lying placenta and history of cesarean section(s) were included: 289 with normal ultrasonography, of whom 21 received prophylactic radiologic intervention, and 61 had abnormal ultrasonography, of whom 22 received prophylactic intervention. Among women with normal ultrasonography without prophylactic intervention (n = 268), the median blood loss was 725 mL (interquartile range (IQR) 500-1500) vs. 1000 mL (IQR 550-1750) in women with intervention (n = 21); the adjusted difference in blood loss was 9 mL (95% confidence interval (CI) -315-513), p = .97). Among women with abnormal ultrasonography, those without prophylactic intervention (n = 39) had a median blood loss of 2500 mL (IQR 1200-5000) vs. 1750 mL (IQR 775-4000) in women with intervention (n = 22); the adjusted difference in blood loss was -1141 mL (95% CI -1694- -219, p = .02). Results of outcomes on maternal morbidity were comparable among women with and without prophylactic intervention. CONCLUSION: These findings suggest that prophylactic radiologic interventions prior to planned cesarean section may help to limit perioperative blood loss in women with clear signs of placenta accreta spectrum disorder on ultrasonography, but there was no evidence of a difference within the subgroup without such ultrasonographic signs. The use of these interventions should be discussed in a multidisciplinary shared decision-making process, including discussions of potential benefits and possible complications. TRIAL REGISTRATION: Netherlands Trial Registry, https://onderzoekmetmensen.nl/en/trial/28238, identifier NL4210 (NTR4363).


Asunto(s)
Placenta Accreta , Placenta Previa , Hemorragia Posparto , Embarazo , Femenino , Humanos , Hemorragia Posparto/etiología , Hemorragia Posparto/prevención & control , Cesárea/efectos adversos , Pérdida de Sangre Quirúrgica/prevención & control , Estudios de Cohortes , Placenta Accreta/diagnóstico por imagen , Placenta Accreta/prevención & control , Estudios Retrospectivos
6.
Arthroscopy ; 28(10): 1329-36, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22885159

RESUMEN

PURPOSE: To determine the intraobserver and interobserver agreement on the geometric classification and 2-dimensional measurements of rotator cuff tears based on magnetic resonance arthrography. METHODS: We retrospectively reviewed preoperative magnetic resonance arthrograms of 73 consecutive patients who were surgically treated for their full-thickness rotator cuff tears. The images were blinded and evaluated by 2 orthopaedic shoulder surgeons and 2 musculoskeletal radiologists using the geometric classification of rotator cuff tears (type 1, crescent-shaped tear; type 2, longitudinal U- or L-shaped tear; type 3a, massive tear measuring between 20 and 30 mm; and type 3b, massive contracted tear measuring >30 mm) and measuring the sagittal/coronal dimensions of the tear. Review was performed twice with an interval of at least 8 weeks. Agreement was calculated using the linear weighted κ coefficient and the intraclass correlation coefficient (ICC). RESULTS: The intraobserver agreement was excellent for both the geometric classification and the sagittal/coronal dimension measurement (κ, 0.81 to 0.92; ICC, 0.84 to 0.98). The ICC for the interobserver agreement was excellent for all sagittal and coronal dimension measurements (ICC, 0.95 to 0.97). The interobserver agreement for the geometric classification was good for the orthopaedic surgeons (κ, 0.75 for round 1 and 0.73 for round 2). The interobserver agreement for the radiologists was excellent in observation round 1 (κ, 0.82) and good in observation round 2 (κ, 0.71). The interobserver agreement between orthopaedic surgeons and radiologists was found to be moderate to good (κ, 0.52 to 0.66). The Fleiss κ was 0.66 for round 1 and 0.62 for round 2. CONCLUSIONS: The geometric classification and the 2-dimensional measurement of rotator cuff tears using magnetic resonance arthrography have good to excellent intraobserver agreement and moderate to good interobserver agreement among experienced observers. LEVEL OF EVIDENCE: Level III, diagnostic study of nonconsecutive patients without consistently applied gold standard.


Asunto(s)
Artrografía , Lesiones del Manguito de los Rotadores , Traumatismos de los Tendones/clasificación , Anciano , Femenino , Humanos , Angiografía por Resonancia Magnética , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Cuidados Preoperatorios , Estudios Retrospectivos , Manguito de los Rotadores/cirugía , Traumatismos de los Tendones/diagnóstico
7.
Cardiovasc Intervent Radiol ; 45(5): 646-653, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35059796

RESUMEN

PURPOSE: To study the safety and efficacy of cutting balloon angioplasty (CBA) followed by paclitaxel drug-coated balloon (PCB) angioplasty for recurrent venous lesions in arteriovenous fistulas (AVFs). MATERIALS AND METHODS: We conducted a prospective single-arm cohort study of CBA followed by PCB angioplasty for recurrent AVF stenoses between September 2017 and April 2019. In total, 44 participants were recruited. Target lesions were included if they had recurred within 12 months post-angioplasty, were > = 0.5 cm upstream from the arteriovenous anastomosis, and did not involve the central veins. Up to two non-target lesions per circuit/participant with the same definition were allowed. Lesions were considered separate when there was an intervening 2-cm segment of normal vessel. Technical success was defined as complete lesion effacement on angioplasty. End-points of target and circuit patency were evaluated clinically at 3, 6, and 12 months post-procedure. RESULT: Technical success was 96% (42/44): Two participants were excluded from analysis due to the need for high-pressure balloon angioplasty as the target lesions did not efface with CBA. The median follow-up duration was 337.5 days. Mean stenosis pre- and post-angioplasty was 69.0% (51.6-84.8) and 20.8% (0-44.8), respectively. The target lesion primary, primary assisted and circuit patency for the entire study population (n = 42) were 61.6 ± 7.8%, 92.7 ± 4.0%, and 54.7 ± 7.9%, respectively, at 12 months. For participants without non-target lesions (n = 22), the rates were 77.3 ± 8.9%, 90.9 ± 6.1%, and 60.7 ± 11.0%, respectively, at 12 months. CONCLUSION: CBA followed by PCB angioplasty appears safe and feasible for treatment of recurrent venous lesions in dysfunctional AVFs.


Asunto(s)
Angioplastia de Balón , Fístula Arteriovenosa , Derivación Arteriovenosa Quirúrgica , Angioplastia de Balón/métodos , Materiales Biocompatibles Revestidos , Estudios de Cohortes , Constricción Patológica/terapia , Humanos , Paclitaxel , Estudios Prospectivos , Diálisis Renal , Resultado del Tratamiento , Grado de Desobstrucción Vascular
8.
Cardiovasc Intervent Radiol ; 45(5): 606-612, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35233662

RESUMEN

PURPOSE: The primary objective is to determine the minimal ablation margin required to achieve a local recurrence rate of < 10% in patients with hepatocellular carcinoma undergoing thermal ablation. Secondary objectives are to analyze the correlation between ablation margins and local recurrence and to assess efficacy. MATERIALS AND METHODS: This study is a prospective, multicenter, non-experimental, non-comparative, open-label study. Patients > 18 years with Barcelona Clinic Liver Cancer stage 0/A hepatocellular carcinoma (or B with a maximum of two lesions < 5 cm each) are eligible. Patients will undergo dual-phase contrast-enhanced computed tomography directly before and after ablation. Ablation margins will be quantitatively assessed using co-registration software, blinding assessors (i.e. two experienced radiologists) for outcome. Presence and location of recurrence are evaluated independently on follow-up scans by two other experienced radiologists, blinded for the quantitative margin analysis. A sample size of 189 tumors (~ 145 patients) is required to show with 80% power that the risk of local recurrence is confidently below 10%. A two-sided binomial z-test will be used to test the null hypothesis that the local recurrence rate is ≥ 10% for patients with a minimal ablation margin ≥ 2 mm. Logistic regression will be used to find the relationship between minimal ablation margins and local recurrence. Kaplan-Meier estimates are used to assess local and overall recurrence, disease-free and overall survival. DISCUSSION: It is expected that this study will result in a clear understanding of the correlation between ablation margins and local recurrence. Using co-registration software in future patients undergoing ablation for hepatocellular carcinoma may improve intraprocedural evaluation of technical success. Trial registration The Netherlands Trial Register (NL9713), https://www.trialregister.nl/trial/9713 .


Asunto(s)
Carcinoma Hepatocelular , Ablación por Catéter , Neoplasias Hepáticas , Carcinoma Hepatocelular/diagnóstico por imagen , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/cirugía , Ablación por Catéter/efectos adversos , Ablación por Catéter/métodos , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/cirugía , Márgenes de Escisión , Estudios Multicéntricos como Asunto , Recurrencia Local de Neoplasia/cirugía , Estudios Prospectivos , Resultado del Tratamiento
10.
BMJ Case Rep ; 14(10)2021 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-34598956

RESUMEN

A 78-year-old female patient presented to the emergency department with syncope and dyspnoea. The left arm appeared to be cold and radial pulse was not palpable. A CT scan of the chest and left arm with intravenous contrast displayed bilateral central pulmonary embolisms in combination with a left subclavian artery embolism and an atrial septal aneurysm. Transthoracic echocardiography identified a patent foramen ovale with right-to-left shunting confirming the diagnosis of paradoxical embolism. The patient was treated with anticoagulants. In a patient presenting with a combination of a pulmonary embolism and a peripheral arterial embolism, the clinician should consider a right-to-left shunt with paradoxical embolism. In line with this, when diagnosing a peripheral arterial embolism, a central venous origin should be considered. Furthermore, when diagnosing a pulmonary embolism or other forms of venous thromboembolism, the clinician should be aware of signs of a peripheral arterial embolism.


Asunto(s)
Embolia Paradójica , Foramen Oval Permeable , Enfermedades Vasculares Periféricas , Embolia Pulmonar , Anciano , Embolia Paradójica/complicaciones , Embolia Paradójica/diagnóstico , Femenino , Foramen Oval Permeable/diagnóstico , Foramen Oval Permeable/diagnóstico por imagen , Humanos , Isquemia , Embolia Pulmonar/diagnóstico por imagen , Embolia Pulmonar/tratamiento farmacológico
11.
J Vasc Access ; 21(5): 615-622, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31865843

RESUMEN

INTRODUCTION: The aim of this study is to evaluate the maturation and patency rates after endovascular treatment of non-maturing arteriovenous fistulas with percutaneous transluminal angioplasty, embolization of competitive veins, or a combination of both in a series of consecutive patients. MATERIAL AND METHODS: Retrospective evaluation of patients with non-matured arteriovenous fistulas treated in our hospital was performed. Fistulography and ultrasonography was performed in all patients to evaluate the presence of stenosis and competitive veins. Significant stenoses (> 50%) were treated with balloon angioplasty and competitive veins (accessory and collateral veins) with coil embolization. RESULTS: A total of 78 fistulas were treated. Angioplasty and coil embolization were performed in 73 and 51 patients, respectively. No major complications occurred. In 65 out of 78 arteriovenous fistulas (83%), successful cannulation with two needles was possible after endovascular treatment. Sixty-three arteriovenous fistulas (81%) were used successfully for at least 3 months. Accessory veins were the only lesion present in 14% of the arteriovenous fistulas; coil embolization of these accessory veins resulted in 100% successful maturation. The estimated 3, 6, and 12 months postintervention assisted primary patency rates were, respectively, 73%, 55%, and 45%. The estimated 3, 6, and 12 months postintervention secondary patency rates were, respectively, 81%, 78%, and 73%. CONCLUSION AND DISCUSSION: Angioplasty and coil embolization are successful and safe procedures that can convert a non-mature fistula into a mature one in more than 80% of patients. Accessory vein embolization may be more important than collateral vein embolization in the presence of stenosis.


Asunto(s)
Angioplastia de Balón , Derivación Arteriovenosa Quirúrgica/efectos adversos , Embolización Terapéutica , Oclusión de Injerto Vascular/terapia , Diálisis Renal , Extremidad Superior/irrigación sanguínea , Venas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Angioplastia de Balón/efectos adversos , Angioplastia de Balón/instrumentación , Circulación Colateral , Embolización Terapéutica/efectos adversos , Embolización Terapéutica/instrumentación , Femenino , Oclusión de Injerto Vascular/diagnóstico por imagen , Oclusión de Injerto Vascular/etiología , Oclusión de Injerto Vascular/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Flujo Sanguíneo Regional , Estudios Retrospectivos , Stents , Resultado del Tratamiento , Grado de Desobstrucción Vascular , Venas/diagnóstico por imagen , Venas/fisiopatología
12.
Cardiovasc Intervent Radiol ; 43(3): 478-487, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31705243

RESUMEN

OBJECTIVES: To determine the rate of prophylactic embolization of extrahepatic vessels in patients undergoing yttrium-90 selective internal radiotherapy (90Y SIRT) for hepatocellular carcinoma (HCC) with the use of catheter-directed computed tomography hepatic angiography (CD-CTHA). MATERIALS AND METHODS: This retrospective study included 186 HCC patients who received 90Y SIRT from May 2010 to June 2015 in a single institution. All procedures were performed in a hybrid angiography-CT suite equipped with digital subtraction angiography (DSA) and CD-CTHA capabilities. CD-CTHA was performed during pre-treatment hepatic angiography. 90Y SIRT was administered approximately 2 weeks later. Selective prophylactic embolization of extrahepatic vessels was performed if extrahepatic enhancement was seen on CD-CTHA or if an extrahepatic vessel opacified on DSA/CD-CTHA despite the final microcatheter position for 90Y microsphere delivery being beyond the origin of this vessel. RESULTS: Thirty-five patients (18.8%) required selective embolization of extrahepatic vessels. Technical success of 90Y SIRT was 99.5%. Two patients (1.1%) developed radiation-induced gastrointestinal ulceration, and one (0.54%) developed radiation-induced pneumonitis. Extrahepatic uptake of 90Y microspheres was seen in the gallbladder of one patient without significant complications. CONCLUSION: The use of CD-CTHA in 90Y SIRT of HCC was associated with a low rate of prophylactic embolization of extrahepatic vessels while maintaining a high technical success rate of treatment and low rate of complications. LEVEL OF EVIDENCE: Level 4, case series.


Asunto(s)
Braquiterapia/métodos , Carcinoma Hepatocelular/radioterapia , Angiografía por Tomografía Computarizada/instrumentación , Angiografía por Tomografía Computarizada/métodos , Neoplasias Hepáticas/radioterapia , Radiografía Intervencional/métodos , Radioisótopos de Itrio , Carcinoma Hepatocelular/diagnóstico por imagen , Catéteres , Femenino , Arteria Hepática/diagnóstico por imagen , Humanos , Hígado/diagnóstico por imagen , Neoplasias Hepáticas/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Radiografía Intervencional/instrumentación , Estudios Retrospectivos
13.
EJVES Short Rep ; 43: 4-7, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31049422

RESUMEN

INTRODUCTION: Pseudoaneurysms of the renal artery are fairly uncommon and mostly asymptomatic. They develop mostly in the right renal artery and in female patients. REPORT: In this report, a female patient with an intraparenchymal renal artery pseudoaneurysm with one year follow up is described. She presented with non-specific abdominal pain. A computed tomography scan revealed hydronephrosis of the right kidney and a giant, intracapsular, contained rupture of a pseudoaneurysm of the right renal artery. The patient was admitted to hospital and underwent a successful selective embolisation of the pseudoaneurysm. Follow up at one year showed normal renal function and an excluded aneurysm. DISCUSSION: Although relatively uncommon, renal artery pseudoaneurysms should be considered in the work up of patients with colicky flank pain. As a treatment option, endovascular approaches are appealing because they are less invasive. Successful treatment can prevent resection of the affected kidney.

14.
CVIR Endovasc ; 1(1): 35, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30652166

RESUMEN

BACKGROUND: Acute limb ischemia is associated with significant mortality and amputation rate. Early restoration of flow can be obtained by various treatment methods that include catheter-directed thrombolysis (CDT) and percutaneous mechanical thrombectomy (PMT). These treatments have been shown to be effective but associated with various complications. There is lack of data comparing these two treatments. We aim to review our experience in the treatment of acute limb ischemia (ALI) and compare CDT with PMT. RESULTS: A total of 94 patients [mean age 65 years, 67% male (n = 63)] presented with ALI between 2006 and 2015 and were treated with either CDT or PMT. Outcomes were retrospectively reviewed. Primary outcomes were technical and clinical success; secondary outcomes were amputation rate at 30 days, duration of hospitalization and 30-day mortality. A total of 117 procedures were performed in 94 patients: 27 surgical bypass grafts, 31 previously stented arteries and 59 native vessels. Twenty eight procedures (24%) were performed with PMT, and 89 (76%) procedures were performed with CDT. Higher technical success was achieved in the PMT group (68%, 19/28) compared to the CDT group (47%, 42/89), p = 0.056. Clinical success was similar in both groups (75%, 21/28 in the PMT group and 73%, 65/89) in the CDT group (p = 0.837). There was no statistically significant difference in 30-day mortality between the PMT vs CDT groups (4% vs 8%, p = 0.425). The length of post-procedural hospital stay was shorter in patients with PMT (6.0 vs 12.6 days, p = 0.001). The absence of end-stage renal failure appears to be a predictor for clinical succes (HR 3.3, 95% CI 0.809-13.592). CONCLUSION: PMT is associated with higher technical success and significantly shorter length of stay compared to CDT; however, clinical success is similar across both treatment entities. The safety profile is comparable.

15.
J Vasc Access ; 18(2): 173-176, 2017 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-27886362

RESUMEN

INTRODUCTION: Maintaining vascular access by means of radiological intervention has become the mainstay of management of patients with central venous stenoses and occlusions (CVO), which can be challenging. We present a case of balloon-assisted percutaneous puncture of an occluded left subclavian vein, through a thrombosed arteriovenous graft, for a tunneled dialysis catheter insertion. METHODS: A thrombosed left arm arteriovenous graft was accessed, and the occluded left subclavian vein was traversed with 0.018 platform. An 8 mm 0.018 low platform balloon was inflated in the left subclavian vein as a target for percutaneous puncture to gain direct access into the occluded segment of the vein. This access was then used for routine placement of a tunneled left subclavian dialysis catheter. RESULTS: Successful placement of a tunneled dialysis catheter into an occluded left subclavian vein using a balloon- assisted puncture technique, through a thrombosed left-arm arteriovenous graft. CONCLUSIONS: Thrombosed arteriovenous grafts are potential access sites into the central veins. Balloon-assisted punctures allow vascular access salvage into otherwise occluded segments of a central vein; in our case, it allowed access into an occluded left subclavian vein for dialysis catheter placement.


Asunto(s)
Derivación Arteriovenosa Quirúrgica/efectos adversos , Implantación de Prótesis Vascular/efectos adversos , Procedimientos Endovasculares/instrumentación , Oclusión de Injerto Vascular/etiología , Enfermedades Renales/terapia , Diálisis Renal , Vena Subclavia , Extremidad Superior/irrigación sanguínea , Grado de Desobstrucción Vascular , Femenino , Oclusión de Injerto Vascular/diagnóstico por imagen , Oclusión de Injerto Vascular/fisiopatología , Humanos , Enfermedades Renales/complicaciones , Enfermedades Renales/diagnóstico , Persona de Mediana Edad , Obesidad/complicaciones , Flebografía , Punciones , Vena Subclavia/diagnóstico por imagen , Resultado del Tratamiento
17.
Cardiovasc Intervent Radiol ; 36(2): 479-83, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22610298

RESUMEN

PURPOSE: Percutaneous vertebroplasty with polymethylmethacrylate (PMMA) is used increasingly for pain relief in symptomatic neoplastic or osteoporotic compression fractures. However, restoration of the stiffness of the treated vertebrae might propagate secondary fracture of adjacent vertebrae. Elastoplasty might prevent these secondary fractures. We assessed retrospectively our experience with elastoplasty in 12 patients, focusing on silicone migration. METHODS: During the period from July 2011 to January 2012, all patients with an indication for vertebroplasty were treated with elastoplasty. The exclusion criterion was the presence of posterior wall defects. Chest computed tomography (CT) scans were performed to evaluate the presence of perivertebral leakage and pulmonary embolism. The prevalence of leakage was compared with the results obtained for vertebroplasty with PMMA reported in the literature. Other complications during the postprocedural period were recorded. RESULTS: Twenty-one vertebral bodies in 12 patients were treated with elastoplasty. Silicone pulmonary emboli were detected on the postprocedural chest CT in 60 % (6/10) of the patients. Leakage to the perivertebral venous plexus was seen in 67 % (14/21) of the treated vertebrae. One major complication occurred: severe, medication-resistant dyspnea developed in one patient with multiple peripheral silicone emboli. CONCLUSIONS: This preliminary evidence suggests that VK100 silicone cement should not be used in elastoplasty because of the increased risk of silicone pulmonary embolism, when compared with the use of PMMA, which occurs worldwide. The major technical disadvantage is that the time taken for the VK100 silicone material to achieve its final strength is too long for practical application.


Asunto(s)
Fracturas por Compresión/cirugía , Fracturas de la Columna Vertebral/cirugía , Vertebroplastia/métodos , Anciano , Anciano de 80 o más Años , Extravasación de Materiales Terapéuticos y Diagnósticos/diagnóstico por imagen , Femenino , Fluoroscopía , Fracturas por Compresión/diagnóstico por imagen , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Complicaciones Posoperatorias/diagnóstico por imagen , Radiografía Intervencional , Estudios Retrospectivos , Siliconas/administración & dosificación , Fracturas de la Columna Vertebral/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
18.
Ned Tijdschr Geneeskd ; 156(20): A4425, 2012.
Artículo en Holandés | MEDLINE | ID: mdl-22607841

RESUMEN

BACKGROUND: Spontaneous haemopneumothorax is a rare disorder and is defined as spontaneous pneumothorax associated with the accumulation of more than 400 ml of blood in the pleural cavity. CASE DESCRIPTION: A 32-year-old male presented at the emergency department following sudden onset of right-sided stinging chest pain and difficulty in breathing. The chest X-ray showed right-sided hydropneumothorax. A tube thoracostomy was performed, which immediately drained 1500 ml of sanguinolent fluid. The first CT-scan showed no active bleeding. Several hours later the patient became haemodynamically unstable and an additional CT-angiogram was performed. This revealed an extravasation in the area of the second posterior intercostal artery, which was successfully embolised subsequently. This resulted in a haemodynamically stable patient, allowing elective video-assisted thoracic surgery. CONCLUSION: Spontaneous haemopneumothorax is a life-threatening disorder. After initial drainage video-assisted thoracic surgery is to be preferred to conservative treatment or thoracotomy. However, it is necessary for the patient to be haemodynamically stable. In this case intervention radiology contributed to a minimally invasive approach. This therefore also merits consideration as a therapeutic option.


Asunto(s)
Embolización Terapéutica/métodos , Hemoneumotórax/terapia , Drenaje , Hemodinámica , Hemoneumotórax/cirugía , Humanos , Masculino , Cirugía Torácica Asistida por Video , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Adulto Joven
20.
Ned Tijdschr Geneeskd ; 155(27): A3571, 2011.
Artículo en Holandés | MEDLINE | ID: mdl-21771373

RESUMEN

A 42-year-old woman came to the emergency department with acute abdominal pain. CT-scan showed an isolated dissection of the A. mesenterica superior and signs of ischaemic colitis. The patient was treated with endovascular stent placement in the artery and partial small bowel resection.


Asunto(s)
Dolor Abdominal/etiología , Disección Aórtica/complicaciones , Colitis Isquémica/complicaciones , Arteria Mesentérica Superior , Dolor Abdominal/diagnóstico , Dolor Abdominal/diagnóstico por imagen , Adulto , Disección Aórtica/diagnóstico , Disección Aórtica/diagnóstico por imagen , Disección Aórtica/cirugía , Colitis Isquémica/diagnóstico , Colitis Isquémica/diagnóstico por imagen , Colitis Isquémica/cirugía , Femenino , Humanos , Stents , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
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