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1.
Vascular ; 31(4): 813-817, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35392735

RESUMO

OBJECTIVE: This study aims to report two cases of symptomatic extrinsic compression of the inferior vena cava and left iliac vein caused by vertebral osteophytes. METHODS: We present two case reports of extrinsic venous compression by vertebral osteophytes. Both cases were endovascularly treated, with a successful outcome. A review of the literature of this unusual condition is also presented. RESULTS: The first patient is an 80-year-old woman who presented to the vascular surgery clinic with bilateral lower extremity edema and pain. A computed-tomography angiography (CTA) revealed extrinsic compression of the inferior vena cava from enlarged osteophytes. Venography and intravascular ultrasound were performed, confirming the diagnosis. A self-expanding venous stent was successfully deployed in the inferior vena cava relieving the extrinsic compression. The edema resolved the following day and was discharged without complications. The second patient is a 61-year-old male that presented to the emergency department with a left iliofemoral deep venous thrombosis. CTA showed left iliac vein compression by a lumbar osteophyte. Percutaneous thrombectomy was successfully achieved and an expanding stent was deployed covering the entire lesion. One month after the procedure the patient died from COVID-19-associated respiratory failure. CONCLUSION: Osteophytes must be considered when dealing with extrinsic venous compression, especially in elderly people.


Assuntos
COVID-19 , Osteófito , Doenças Vasculares , Trombose Venosa , Masculino , Feminino , Humanos , Idoso , Idoso de 80 Anos ou mais , Pessoa de Meia-Idade , Trombose Venosa/terapia , Veia Ilíaca , Veia Cava Inferior , Stents
2.
Childs Nerv Syst ; 38(7): 1307-1312, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35419625

RESUMO

OBJECTIVES: Pediatric hemifacial spasm has been rarely reported in the literature, which contains only 44 cases. Although microvascular decompression (MVD) has been widely regarded as effective therapy for hemifacial spasm, the etiology and surgical treatment of pediatric patients are seldom reported. We report our experience with MVD for pediatric hemifacial spasm patients and review the literature with emphasis on the difference from adults. METHODS: This retrospective report included 4 pediatric HFS patients, who underwent MVD in our department between January 2014 and May 2021 and then reviewed all the pediatric hemifacial spasm literature on "pubmed" with emphasis on the clinical data. RESULTS: Our series included 1 boy and 3 girls with an average age of 15.6 ± 3.2 years old; their onset ages were from 7 to 16 years old (11.6 ± 4.3). Three patients achieved immediate excellent outcomes and 1 achieved poor immediately and became good 6 months later. During the operation, all the 4 patients were found compressed by anterior inferior cerebellar artery (AICA). The incidence of pediatric atypical hemifacial spasm patients is 12.5% among the 48 reported cases, which is much higher than adults. Among all the reported 48 cases including ours, the singular artery neurovascular conflictions account for 27/48(56%), the singular vein and combined artery/vein conflictions in 12/48(25%) and the cisternal conflictions in 5/48(10.4%) patients. CONCLUSIONS: The etiology of pediatric hemifacial spasm is still neurovascular conflict, of which combined artery/vein and singular venous compression patterns have a higher proportion, which might explain higher incidence of pediatric atypical hemifacial spasm and less favorable postoperative outcome. Sufficient arachnoid release, full exploration and decompression along the facial nerve are necessary, which would help to increase the excellent postoperative cure rate among pediatric patients.


Assuntos
Espasmo Hemifacial , Cirurgia de Descompressão Microvascular , Adolescente , Adulto , Criança , Nervo Facial/cirurgia , Feminino , Espasmo Hemifacial/etiologia , Espasmo Hemifacial/cirurgia , Humanos , Masculino , Estudos Retrospectivos , Resultado do Tratamento
3.
Acta Neurochir (Wien) ; 164(6): 1567-1573, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35274166

RESUMO

PURPOSE: Controversies regarding venous compression and trigeminal neuralgia (TN) still exist. The study demonstrates our experience for microvascular decompression (MVD) in TN caused by purely venous compression. The goal was to identify prognostic anatomical or surgical factors that may influence the outcome. METHODS: Between 2004 and 2020, 49 patients were operated with purely venous compression. Average age was 58.4 years. Mean history of TN was 7.8 years. Microsurgical procedures included transposition or separation of the vein, coagulation, and division. Several features have been analyzed with respect to BNI scores. RESULTS: Evaluation on discharge revealed a complete pain relief in 39 (80%), partial improvement in 7 (14%), and no benefit in 3 (6%) patients. Facial hypesthesia was reported by 14 (28.6%) patients. Mean follow-up (FU) was 42.1 months. BNI pain intensity score on FU revealed 71.4% excellent to very good scores (score 1: 32 (65.3%); 2: 3 (6.1%)). BNI facial numbness score 2 could be detected in 13 patients (26.5%) during FU. There was no statistical relationship between immediate pain improvement or BNI pain intensity score on FU with respect to surgical procedure, size of trigeminal cistern, type of venous compression, venous caliber, trigeminal nerve indentation, or neurovascular adherence. BNI facial numbness score was dependent on type of venous compression (p < 0.05). CONCLUSION: We did not find typical anatomical features that could either predict or influence the outcome regarding pain improvement or resolution in any form. Neither classic microvascular decompression (interposition/transposition) nor sacrificing the offending vein made any difference in outcome.


Assuntos
Cirurgia de Descompressão Microvascular , Neuralgia do Trigêmeo , Doenças Vasculares , Humanos , Hipestesia/etiologia , Cirurgia de Descompressão Microvascular/efeitos adversos , Pessoa de Meia-Idade , Dor/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Nervo Trigêmeo/cirurgia , Neuralgia do Trigêmeo/etiologia , Neuralgia do Trigêmeo/cirurgia , Doenças Vasculares/complicações
4.
Neuroophthalmology ; 46(1): 54-58, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35095137

RESUMO

Styloidogenic jugular venous compression syndrome has been recently described as a new cause of idiopathic intracranial hypertension. We present a 69-year-old patient, without other relevant medical history, presenting with 3 years of positional headache associated with decreased vision when reading and while turning her head to the right or left. She also reported pulsatile low-frequency tinnitus. Papilloedema was noted on the physical examination and, on imaging, an enlarged styloid process that induced jugular vein compression. The patient underwent styloidectomy with resolution of her symptoms and normalisation of her visual fields.

5.
Childs Nerv Syst ; 36(12): 3135-3139, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32346788

RESUMO

BACKGROUND: Styloidogenic jugular venous compression syndrome (SJVCS) has been shown to present with a similar symptomatology to idiopathic intracranial hypertension (IIH) and is caused by compression of the internal jugular vein (IJV) between the lateral tubercle of C1 and the styloid process. Treatments including venous stenting and styloidectomy have been reported with good outcomes; however, treatment of a pediatric patient with SJVCS with styloidectomy has not previously been reported in the literature. CASE REPORT: A 12-year-old male presented with refractory positional headaches, nausea, and vomiting, and after, workup including lumbar puncture (LP) and intracranial pressure (ICP) monitoring was found to have intracranial hypertension associated with contralateral neck turning. Computed tomography venogram (CTV) revealed severe bilateral compression of the IJV's between the styloid processes and C1 tubercle. The patient was successfully treated with unilateral right-sided styloidectomy with symptomatic relief. CONCLUSIONS: This is the first reported pediatric case of SJVCS treated successfully with styloidectomy to our knowledge and adds to the limited literature that styloidectomy is a durable treatment option for SJVCS.


Assuntos
Hipertensão Intracraniana , Pseudotumor Cerebral , Criança , Humanos , Veias Jugulares/diagnóstico por imagem , Veias Jugulares/cirurgia , Masculino , Flebografia , Stents
6.
Cardiol Young ; 30(10): 1496-1497, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32811581

RESUMO

Seroma formation is a relatively rare complication seen after a modified Blalock-Taussig shunt. Herein, we report a rare case of seroma formation on the posterior aspect of the left atrium without it touching the graft, and presenting with shock, due to pulmonary vein compression.


Assuntos
Procedimento de Blalock-Taussig , Veias Pulmonares , Procedimento de Blalock-Taussig/efeitos adversos , Humanos , Lactente , Artéria Pulmonar/cirurgia , Veias Pulmonares/diagnóstico por imagem , Veias Pulmonares/cirurgia , Seroma/diagnóstico , Seroma/etiologia
7.
J Magn Reson Imaging ; 50(1): 41-51, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30637853

RESUMO

Magnetic resonance imaging (MRI) is increasingly used in autosomal dominant polycystic kidney disease (ADPKD) for diagnosis, classification, assessment of disease progression and treatment response, and for identifying complications. Herein we review the role of MRI in the management of patients with ADPKD. We show how MRI-derived total kidney volume is a biomarker for assessing ADPKD severity and predicting decline in renal function. We also demonstrate the MR appearances of common complications. Level of Evidence: 3 Technical Efficacy Stage: 5 J. Magn. Reson. Imaging 2019;50:41-51.


Assuntos
Imageamento por Ressonância Magnética/métodos , Rim Policístico Autossômico Dominante/diagnóstico por imagem , Biomarcadores/análise , Progressão da Doença , Humanos , Rim Policístico Autossômico Dominante/complicações , Rim Policístico Autossômico Dominante/patologia , Valor Preditivo dos Testes
8.
Scand J Med Sci Sports ; 28(7): 1766-1774, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29575406

RESUMO

In healthy individuals during a non-exercised state, knee-high compression socks (CS) may reduce the magnitude of lower limb venous pooling during orthostasis but are not effective at minimizing the incidence of pre-syncopal symptoms. However, exaggerated reductions in cerebral blood flow velocity (CBV) and cardiac stroke volume (SV) occur during passive head-up tilt (HUT) testing following dynamic exercise. It is unknown if CS can minimize post-exercise HUT-induced decrements in CBV and SV in this population. To test the hypothesis that CS will attenuate the reductions in SV and CBV during 60° HUT following 60 minutes of moderate-intensity (60% VO2 peak) cycling exercise. Ten healthy volunteers (22.6 ± 2.1 years, 24.1 ± 2.5 kg/m2 ) completed pre- and post-exercise 15-minute HUT tests during randomized CS and Control (no CS) conditions. Changes in blood pressure (finger plethysmography), SV (Modelflow® method), and CBV (Transcranial Doppler) were measured during HUT and preceding supine rest periods. Pre-exercise HUT-induced similar (all, P > .47) reductions in SV (Control; -23.1 ± 11.5%, CS; -20.5 ± 10.9%) and CBV (Control; -18.1 ± 6.3%, CS; -15.3 ± 9.0%). However, larger post-exercise decreases in SV and CBV during HUT were observed in the Control versus CS condition. Specifically, CS attenuated the drop in SV (Control: -32.9 ± 5.6%, CS: -24.3 ± 11.6%; P = .01) and CBV (Control: -25.1 ± 5.8%, CS: -17.6 ± 7.8%; P = .02) during the post-exercise HUT test. These results indicate that CS attenuated HUT-induced reductions in SV and CBV following moderate-intensity cycling exercise and suggest that CS may be an effective countermeasure to reduce the incidence of post-exercise syncope in vulnerable populations.


Assuntos
Circulação Cerebrovascular , Exercício Físico/fisiologia , Meias de Compressão , Volume Sistólico , Síncope/prevenção & controle , Adulto , Pressão Sanguínea , Estudos Cross-Over , Feminino , Frequência Cardíaca , Humanos , Masculino , Consumo de Oxigênio , Teste da Mesa Inclinada , Adulto Jovem
9.
Pediatr Radiol ; 47(4): 450-457, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28102453

RESUMO

BACKGROUND: Intravascular ultrasound (IVUS) allows intraluminal imaging of blood vessels rather than the one-dimensional luminal outline depicted by digital subtraction angiography (DSA). Despite extensive literature in multiple adult vascular diseases, IVUS has not been directly compared to DSA in pediatric and adolescent vascular pathologies. OBJECTIVE: The purpose of this manuscript is to compare absolute luminal diameter measurements obtained via IVUS and DSA during a variety of pediatric endovascular procedures. MATERIALS AND METHODS: We conducted a retrospective review of all pediatric and adolescent endovascular procedures from October 2014 to March 2016 in which IVUS and DSA were used. We compared the vessel diameter measurements and analyzed them using SAS software with a paired t-test. RESULTS: There were 102 total measurements (DSA = 56; IVUS = 56; 22 procedures; 20 patients). On average, IVUS measured 0.6 ± 2.1 mm larger than DSA (95% confidence interval [CI] -0.01 to 1.12; P = 0.06; r = 0.90). When venous compression syndrome (May-Thurner, Nutcracker, superior vena cava syndrome) measurements were excluded, IVUS measured 0.7 ± 1.6 mm larger than DSA (95% CI 0.14 to 1.18; P = 0.01; r = 0.93). When venous compression syndrome measurements were evaluated separately, IVUS measured 0.3 ± 3.0 mm larger than DSA (95% CI -1.16 to 1.82; P = 0.65; r = 0.45). CONCLUSION: Overall, IVUS measurements were slightly larger than DSA measurements in all data subsets. Absolute vessel diameter measurements obtained with IVUS in the pediatric and adolescent population are statistically significantly larger than those obtained using DSA when excluding venous compression syndromes. In venous compression syndromes, IVUS might provide a more accurate representation of vessel compression and diameter than DSA.


Assuntos
Angiografia Digital/métodos , Vasos Sanguíneos/diagnóstico por imagem , Ultrassonografia de Intervenção/métodos , Doenças Vasculares/diagnóstico por imagem , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Estudos Retrospectivos
10.
Acta Neurochir (Wien) ; 159(2): 237-249, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27817008

RESUMO

BACKGROUND: Implication of veins as neurovascular conflict (NVC) in the genesis of trigeminal neuralgia (TN) remains a matter of debate. Few reports dealing with venous NVC have been published. The objective of this study is to describe the outcome in a historical cohort of consecutive patients with classical TN due to venous compression. METHODS: All patients with TN treated by microvascular decompression (MVD) from 2005 to 2013 were included if a marked venous compression was found at the surgery either alone or accompanied by an artery. Patients were evaluated for clinical presentation, operative findings and the long-term outcome. Outcome was considered favourable if patients were classed as BNI I or II (i.e. not requiring any medication). Kaplan-Meier analysis was used to determine probability of a favourable outcome at 10 years of follow-up. RESULTS: Out of the overall series of 313 patients having been treated by MVD and considered for the study, in 55 (17.5 %) a vein was the main compressive vessel; in 26 (8.3 %) it was the only compressive vessel. Probability of relief with no need for medication at 10 years was 70.6 %. The patients with focal arachnoiditis had a poor long-term outcome, i.e. BNI III-V, in 85.7 % compared with 20.8 % without arachnoiditis (p = 0.0037 Fisher's exact test). No differences in outcome were found between patients presenting with purely venous compression and patients with mixed compression. Outcome was similarly good for patients with atypical neuralgia when compared to patients with typical clinical presentation. CONCLUSIONS: Venous NVC as a cause of TN is far from rare. MVD with complete liberation of the entire root in cases with clear-cut venous compression on imaging studies gives a good probability of long-term pain relief, thus encouraging to propose surgery for such patients.


Assuntos
Cirurgia de Descompressão Microvascular/métodos , Neuralgia do Trigêmeo/cirurgia , Doenças Vasculares/complicações , Veias/patologia , Adulto , Feminino , Humanos , Masculino , Cirurgia de Descompressão Microvascular/efeitos adversos , Pessoa de Meia-Idade , Resultado do Tratamento , Neuralgia do Trigêmeo/etiologia
11.
Ann Ig ; 28(3): 227-32, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27297199

RESUMO

BACKGROUND: The working posture affects the peripheral venous circulation, although the current literature does not report any correlation between working posture and the abnormalities of the jugular veins flow. The purpose of this preliminary research is to study, in female workers, the prevalence of Venous Compressive Syndrome (VCS) caused by total block of the internal jugular veins flow, so-called "White Compression". Due to complete compression by postural, muscular, fascial, anatomical or bone anomalies, White Compression is not visible by EchoColorDoppler (ECD) and its flow can only be detected by the rotational movements of the head or by Valsalva's maneuver. METHODS: We studied a sample of female workers with ECD (n=128), in supine and upright position divided into subgroups according to the obliged posture maintained during working hours: group A, seated work (n = 61; 47.7%); group B, standing work (n = 41; 32.0%); group C, mixed (both standing and seated work) (n = 26; 20.3%). The total sample (n = 128) had the mean age of 46 ± 10 years (minimum 18 and maximum 67 years) and mean Body Mass Index (BMI) of 23 ± 4 kg/m2 (min 16 kg/m2 and a maximum of 42 kg/m2). RESULTS: Group A and group C did not show any White Compression in orthostatic and clinostatic position. The 9.75% (p = 0.0125) of Group B had a White Compression in orthostatic position: two female workers on the left side (4.9%) and two female workers on the right side (4.9%). CONCLUSIONS: We conclude that there is a risk of jugular compression blocks in female workers exposed to prolonged upright posture. Yet there is no longitudinal study that identifies the White Compressions as etiology of a chronic neurodegenerative disease. The authors hope that some wider studies can confirm the prevalence of these compressions in standing posture and their patho-physiological consequences.


Assuntos
Hemodinâmica , Veias Jugulares , Postura , Insuficiência Venosa , Mulheres Trabalhadoras , Adulto , Composição Corporal , Estatura , Índice de Massa Corporal , Peso Corporal , Impedância Elétrica , Feminino , Humanos , Itália/epidemiologia , Veias Jugulares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Síndrome , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/epidemiologia , Insuficiência Venosa/etiologia , Mulheres Trabalhadoras/estatística & dados numéricos
12.
Vasc Med ; 20(2): 162-7, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25425626

RESUMO

Deep vein thrombosis related to immobilization is a common and extensively studied disorder, particularly in hospitalized patients. However, the phenomenon of iatrogenic venous compression (IAVC) and related deep venous thrombosis (DVT) is under-recognized and under-reported. In the absence of relieving the compressive pathology, the recanalization rates are expected to be very low - thereby putting patients at a significant risk for the development of post-thrombotic syndrome (PTS). In this report, we describe two cases of DVT related to IAVC, and review similar cases that have been previously reported in the literature. With advancements in catheter-based technology, patients with IAVC (with or without DVT) may now be offered advanced endovascular treatment options such as catheter-directed pharmacomechanical thrombolysis (PMT) and percutaneous venoplasty and/or stenting. Hence, timely recognition and treatment is essential in the prevention of disabling PTS or life-threatening pulmonary embolism.


Assuntos
Veia Femoral/cirurgia , Fibrinolíticos/uso terapêutico , Doença Iatrogênica/prevenção & controle , Síndrome Pós-Trombótica/terapia , Terapia Trombolítica , Trombose Venosa/terapia , Adolescente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Síndrome Pós-Trombótica/diagnóstico , Trombose Venosa/diagnóstico
13.
Ann Dermatol Venereol ; 142(8-9): 469-75, 2015.
Artigo em Francês | MEDLINE | ID: mdl-26256652

RESUMO

Compression is a mandatory therapeutic measure in all stages of venous insufficiency. This treatment, recommended by the French Health Authority (HAS), is consistently included in the protocols of therapeutic studies involving venous ulcers. Given the great variety in materials available and in the approaches of individual doctors, it is essential to avoid a dogmatic approach and instead to adapt treatment to the therapeutic results based on the premise that well-controlled treatment should result in improvement in trophic disorders and in patient comfort, while poor treatment is badly tolerated, even potentially harmful, and rejected by patients. Manufacturers have made great progress in the design of compression hose and bandages; however, to assess this treatment using the evidence-based medical methods stipulated by learned societies, great rigour is demanded in clinical trials, and the active substances, mode of action and requisite "dosages" must be precisely defined.


Assuntos
Bandagens , Úlcera da Perna/terapia , Meias de Compressão , Insuficiência Venosa/terapia , Desenho de Equipamento , Humanos
14.
Clin Anat ; 27(1): 89-93, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23381734

RESUMO

The etiological basis of trigeminal neuralgia (TN) is unknown but vascular (arterial and venous) compression of the trigeminal nerve roots has emerged as the likely cause in most cases. Here we examine the evidence for the "brain sagging/arterial elongation hypothesis" with reference to the cerebral arteries and veins believed to cause the compression. Most often implicated are the superior cerebellar artery, the anterior and posterior inferior cerebellar arteries, and the superior petrosal vein including several of its tributaries. The reviewed data suggest that the theoretical support for a vascular compressive etiology of TN is weak, albeit the surgical outcome data are relatively convincing.


Assuntos
Cerebelo/irrigação sanguínea , Artérias Cerebrais , Veias Cerebrais , Síndromes de Compressão Nervosa/etiologia , Neuralgia do Trigêmeo/etiologia , Humanos , Síndromes de Compressão Nervosa/cirurgia , Neuralgia do Trigêmeo/cirurgia
15.
Radiol Case Rep ; 19(4): 1624-1628, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38333901

RESUMO

Hemimasticatory spasm is a very rare disorder of the trigeminal nerve characterized by paroxysmal involuntary contraction of the jaw-closing muscles. Although its cause is not fully known, vascular compression of the trigeminal nerve is thought to be involved. Magnetic resonance imaging (MRI) can indicate continuing vascular compression for hemimasticatory spasm. Here, we report a case of hemimasticatory spasm that was caused by single venous compression of the trigeminal nerve root on MRI and was confirmed by microvascular decompression surgery.

16.
J Neurol Surg B Skull Base ; 85(3): 287-294, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38721365

RESUMO

Background Arterial compression of the trigeminal nerve at the root entry zone has been the long-attributed cause of compressive trigeminal neuralgia despite numerous studies reporting distal and/or venous compression. The impact of compression type on patient outcomes has not been fully elucidated. Objective We categorized vascular compression (VC) based on vessel and location of compression to correlate pain outcomes based on compression type. Methods A retrospective video review of 217 patients undergoing endoscopic microvascular decompression for trigeminal neuralgia categorizing VC into five distinct types, proximal arterial compression (VC1), proximal venous compression (VC2), distal arterial compression (VC3), distal venous compression (VC4), and no VC (VC5). VC type was correlated with postoperative pain outcomes at 1 month ( n = 179) and last follow-up (mean = 42.9 mo, n = 134). Results At 1 month and longest follow-up, respectively, pain was rated as "much improved" or "very much improved" in 89 69% of patients with VC1, 86.6 and 62.5% of patients with VC2, 100 and 87.5% of patients with VC3, 83 and 62.5% of patients with VC4, and 100 and 100% of patients with VC5. Multivariate analysis demonstrated VC4 as a significant negative of predictor pain outcomes at 1 month, but not longest follow-up, and advanced age as a significant positive predictor. Conclusion The degree of clinical improvement in all types of VC was excellent, but at longest follow-up VC type was not a significant predictor out outcome. However distal venous compression was significantly associated with worse outcomes at 1 month.

17.
CVIR Endovasc ; 7(1): 33, 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38514484

RESUMO

BACKGROUND: Cancer patients with pelviabdominal masses can suffer from lower extremity symptoms due to venous compression. The effectiveness of venous stenting has been established in extrinsic venous compression in benign conditions like May-Thurner syndrome. In this retrospective study we evaluate the efficacy and safety of caval, iliocaval and iliofemoral venous stenting for cases of extrinsic venous compression caused by malignant masses in cancer patients. METHODS: IRB-approved retrospective review of patients who underwent iliofemoral venography with venoplasty and stenting between January 2018 and February 2022 was performed. Patients with extrinsic venous compression caused by malignant masses were included. Data on patient demographics, pre-procedure symptoms, procedural technique, stent characteristics, outcomes and follow-up were collected. Descriptive statistics were used to assess technical success, clinical success, primary stent patency and adverse events of the procedure. RESULTS: Thirty-seven patients (19 males, 18 females) who underwent 45 procedures were included. Deep venous thrombosis (DVT) was present in 21 (57%) patients. Twenty-nine patients (78%, 95% CI 62-90%) reported clinical improvement of the presenting symptoms. The median overall survival after the procedure was 4.7 months (95% CI 3.58-5.99). Eight (22%) patients were alive at last follow up with median follow up of 10.33 months (Range 2-25 months). Twenty-six patients had patent stents on their last follow up imaging (70%, 95% CI 61%-91%). Two patients had a small access site hematoma which resolved spontaneously. Two patients developed moderate, and 1 patient developed severe adverse events related to post procedure therapeutic anticoagulation. CONCLUSION: Venous stenting is a safe procedure and should be considered as part of the palliative care for patients with debilitating lower extremity symptoms related to iliocaval and iliofemoral venous compression.

18.
World Neurosurg ; 2024 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-39013499

RESUMO

OBJECTIVE: Trigeminal neuralgia (TN) due to venous compression is far less common than that due to arterial compression, and its pathogenesis is less clear. We investigated the clinical and imaging features of TN caused by solely venous compression by measuring the morphologies of the posterior cranial fossa (PCF) and the trigeminal nerve. METHODS: We retrospectively reviewed records of TN patients who underwent microvascular decompression at our institution and extracted cases with solely arterial or solely venous compression. Preoperative magnetic resonance imaging was used to find the length (Y), width (X), height (Z), and volume (V) of the PCF, the angle between the trigeminal nerve and pons (TPA), and the distance between Meckel's cave and the root entry zone (REZ) of the trigeminal nerve. RESULTS: Of 152 patients, 24 had TN caused solely by venous compression. The value of Y was significantly smaller in the venous group than the arterial group (P<0.01). The TPA was significantly smaller in the venous group (P<0.01). We hypothesized that TN patients with solely venous compression had a characteristic PCF morphology with a short anteroposterior diameter (Y), such that age-related changes in brain morphology could alter the course of the trigeminal nerve and cause compression by a vein. CONCLUSIONS: The morphological features of the PCF differed between patients with TN of venous and those with TN of arterial etiology. Age-related changes in brain morphology and changes of course of the trigeminal nerve may also add to the possibility of developing TN, especially of venous etiology.

19.
J Vasc Surg Venous Lymphat Disord ; 12(3): 101851, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38360403

RESUMO

OBJECTIVE: Pelvic venous reflux may be responsible for pelvic venous disorders and/or lower-limb (LL) varicose veins. Ultrasound investigation with Doppler allows a complete study of the entire infra-diaphragmatic venous reservoir. The aim of this study was to guide and standardize the investigation of the pelvic origin of venous reflux in female patients with LL varicose veins. METHODS: In this case-control study, we applied a comprehensive ultrasound investigation protocol, which involved four steps: (1) venous mapping of the lower limbs; (2) transperineal and vulvar approach; (3) transabdominal approach; and (4) transvaginal approach. RESULTS: Forty-four patients in group 1 (patients with LL varicose veins and pelvic escape points [PEPs]) and 35 patients in group 2 (patients with LL varicose veins without PEPs [control group]) were studied, matched by age. The median age was 43 years in both groups. The calculated body mass index was lower in group 1 (23.4 kg/m2) compared with the control group (25.4 kg/m2), and this difference reached statistical significance (P < .001). The presence of pelvic varicose veins (PVs) by transvaginal ultrasound was 86% in group 1 and 31% in group 2. Perineal PEPs were the most prevalent, being found in 35 patients (79.5%), more frequent on the right (57.14%) than on the left (42.85%) and associated with bilateral PVs 65.7% of the time. In group 1, 23 patients (52%) reported recurrent varicose veins vs eight patients (23%) in the control group (P = .008). Regarding the complaint of dyspareunia, a significant difference was identified between the groups (P = .019), being reported in 10 (23%) patients in group 1 vs one patient (2.9%) in the control group. The median diameters in the transabdominal approach of the left gonadal veins were 6.70 mm for group 1 and 4.60 mm for group 2 (P < .001). In patients with PVs in group 1, the median diameter of PEPs at the trans-perineal window was 4.05 mm. In the transvaginal examination, the mean diameter of the veins in the peri uterine region was 8.71 mm on the left and 7.04 mm on the right. CONCLUSIONS: The identification of PEPs by venous mapping demonstrates the pelvic origin of the reflux and its connections with the LL varicose veins. For a more adequate treatment plan, we suggest a complete investigation protocol based on the transabdominal and transvaginal study to rule out venous obstructions, thrombotic or not, and confirm the presence of varicose veins in the pelvic adnexal region.


Assuntos
Varizes , Insuficiência Venosa , Humanos , Feminino , Adulto , Insuficiência Venosa/terapia , Estudos de Casos e Controles , Ultrassonografia Doppler Dupla/métodos , Varizes/terapia , Extremidade Inferior/irrigação sanguínea
20.
Cureus ; 16(3): e56362, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38633923

RESUMO

Iatrogenic venous compression syndrome is defined by extrinsic vein compression due to medical hardware, particularly relevant after joint replacement surgeries. Inserting medical hardware can lead to immediate risks such as deep vein thrombosis and pulmonary embolisms due to local tissue inflammation. The long-term issues include venous insufficiency due to chronic vessel irritation, subsequently causing intimal proliferation and thickening. Despite the existing knowledge of venous compression syndromes, iatrogenic cases are severely underreported. Here, we present a unique case of bilateral common femoral vein compression in a patient with May-Thurner syndrome and prior bilateral hip arthroplasty. An 85-year-old man with a history of venous insufficiency and bilateral hip arthroplasty for osteoarthritis presented with bilateral leg edema. Unsuccessful sclerotherapy and radiofrequency ablation led to a referral to a vascular specialist for venous duplex scans, venograms, and intravascular ultrasound. May-Thurner syndrome was revealed in the left common iliac vein, prompting the deployment of an 18 mm × 16 mm stent. Subsequently, during a venogram, what initially appeared to be a vasospasm in the left common femoral vein was diagnosed as extrinsic iatrogenic venous compression due to acetabular hip screws. This was found after two IV injections of 400 mg nitrogen and one balloon angioplasty could not resolve the compression. After advancement over a 0.35" microwire and accurate positioning over the center of the left common femoral vein lesion, a 16 mm × 90 mm stent was deployed. The venogram and intravascular ultrasound also showed a similar compression in the right common femoral vein. Another 400 mg IV nitrogen did not expand the lesion, so it was concluded that there was similarly an iatrogenic venous compression of the right common femoral vein, also due to acetabular hip screws in the right femur. A follow-up was scheduled a couple of weeks later to address the issue in the right common femoral vein. The underreported issue of iatrogenic venous compression following joint replacements highlights the need for better recognition and management of vascular complications due to inflammation and intimal proliferation. This is especially the case in high-risk patients, such as those with May-Thurner syndrome.

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