Prevalence of deep venous anomalies in congenital vascular malformations of venous predominance

Eifert, Sandra; Villavicencio, J. Leonel; Kao, Tzu‐Cheg; Taute, Bettina-Maria; Rich, Norman M.

doi:10.1067/mva.2000.101464

Cited by 203 publications

(59 citation statements)

References 34 publications

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“…The proportion of anatomic variations found in this study was greater than is described in the literature, 7,14,19,20 since two patients had duplication of the inferior vena cava in the infrarenal region (1% do total) and three patients (2% of the total) had a single renal vein feeding a single kidney.…”

Section: Discussioncontrasting

confidence: 52%

“…12 Although anatomic variations of the inferior vena cava are uncommon and are seen as incidental findings in examinations and endovascular procedures, it must not be forgotten that they can cause problems during such procedures. This variant has an estimated prevalence of 0.5% 13,14 and just 6% of the anomalies of the inferior vena cava involve the infrarenal segment. There were two cases with anatomic variations (1%) in the sample described here, which is a slightly higher proportion than that estimated in the literature.…”

Section: Discussionmentioning

confidence: 99%

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Tomographic anatomy of the vena cava and renal veins: features relevant to vena cava filter placement

et al. 2015

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BACKGROUND: There is a growing demand for invasive procedures involving the inferior vena cava, in particular for placement of vena cava filters. It is not always easy to identify the more distal renal vein with cavography, for safe release of filters. OBJECTIVES: To determine parameters for the relationships between the renal veins and the infrarenal vena cava and their corresponding vertebral bodies, their relationships with biotype and the occurrence of anatomic variations, the relationships between vertebral bodies and the bifurcation of the common iliac veins and the distance from this bifurcation to the outflow of the more distal renal vein, with reference to placement of vena cava filters. METHODS: A total of 150 abdominal computed tomography scans conducted from October to November 2011 were analyzed and classified according to the biotype exhibited (using Charpy's angle). Scans were performed at MEDIMAGEM and analyzed at the Integrated Vascular Surgery Service, both part of Hospital da Beneficência Portuguesa in São Paulo, Brazil. RESULTS: In 127 of the 150 scans analyzed (84.66%), the more distal renal vein emerged between the first lumbar intervertebral space (L1-L2) and the body of L2, irrespective of patient biotype. Just 23 patients (15.33%) exhibited a more distal renal vein with outflow below the body of L2, i.e. in the projection of the space between L2 and L3. CONCLUSIONS: The radiological correlation between the confluence of the more distal renal vein and vertebral bodies exhibits little variation, irrespective of the biotype of the patient.

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Section: Discussioncontrasting

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Tomographic anatomy of the vena cava and renal veins: features relevant to vena cava filter placement

et al. 2015

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“…Her physical examination was unremarkable except for conjunctival pallor. Her vital signs during admission were blood pressure 98/54 mmHg, pulse rate 64 beats/minute, respiratory rate 18 breaths/minute, temperature 37.0 o C, oxygen saturation 100% in room air, and she had a body mass index (BMI) of 20.5 kg/m 2 [2]. She underwent several blood work-ups which revealed normal findings except for a normocytic normochromic anemia: hemoglobin (Hb) 8.88 g/dL, mean corpuscular volume (MCV) 91.2 fL, mean corpuscular hemoglobin (MCH) 30.5 pg/cell, and red cell distribution width (RDW) 21.6%.…”

Section: Case Presentationmentioning

confidence: 99%

“…In the general population, the overall incidence of congenital vascular malformations is approximately 1.5% with a venous predominance of 2:1 [2]. In general, venous anomalies result from errors of embryological development in the venous fetal circulation and are exclusively present from birth.…”

Section: Introductionmentioning

confidence: 99%

Bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman: a case report

Pallangyo¹,

Lyimo

Nicholaus³

et al. 2016

J Med Case Reports

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BackgroundRenal vein anomalies are relatively infrequent and generally asymptomatic. Preoperative knowledge of such variants is, however, of paramount importance in several angiographic and surgical procedures including renal venography, renal vein sampling, spermatic embolization, and renal transplantation. Inadequate knowledge and failure to recognize such anatomic variations may lead to several operative hazards including hemorrhage, nephrectomy, and even death.Case presentationWe report a case of bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman of African descent from Tanzania who presented to us with a 12-year history of recurrent anemia. She had anemia, a positive sickling test, and hemoglobin electrophoresis revealed a sickle cell trait (AS). She underwent computed tomography angiography of her chest and abdomen to rule out the presence of arteriovenous malformations. Aortography findings were normal but venography results revealed features of tortuously dilated azygos and hemiazygos veins each receiving blood from its respective posterior division of renal vein.ConclusionsAlthough venous anomalies are relatively infrequent and generally lack a clinical significance, a thorough understanding of embryologic development and its associated errors is of immense importance in equipping angiographers and surgeons to select appropriate interventional/operative techniques, anticipate risks, and prevent intervention-related complications.

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“…Их частота также остается неиз вестной, обычно обсуждаются только цифры общей распространенности сосудистых мальформаций, которая составляет 1-1,5% [48].…”

Section: частота выявления варикозного расширения вен в различных иссunclassified

Epidemiology of Chronic Venous Disease

Селиверстов¹,

Avak’yants²,

Nikishkov³

et al. 2016

Flebol.

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Хронические заболевания венозной системы нижних конечностей представляют собой одну из самых обсуждаемых проблем в хирургии. Активное изучение различных аспектов этой патологии длится уже десятки лет и, на первый взгляд, многие вопросы уже решены или, по меньшей мере, близки к своему решению. Одним из таких вопросов, который редко вызывает дискуссии в профессиональной среде, слу Представлен анализ источников литературы по эпидемиологии хронических заболеваний вен (хЗВ), опубликованных в мировой литературе начиная с конца 50-х годов прошлого столетия. Выявленные различия распространенности варикоз-ной болезни среди взрослых очень высоки -от 2 до 56% среди мужчин и от 1 до 60% среди женщин. В Африке частота варикозного расширения вен составляет 5-6%, в Новой Гвинее, на некоторых островах тихого океана распространен-ность заболевания также низка, в арабских странах достигает 11,5%, в европе составляет десятки процентов от взрослого населения. Более высокая частота варикозного расширения вен обнаружена у женщин в европейских странах, СшА, Южной Америке. В ряде работ доля мужчин с варикозной болезнью оказалась такой же, как и у женщин. В Африке, тихоокеанском регионе частота варикозной болезни у мужчин выше, чем у женщин. данные о распространенности пост-тромботической болезни и функциональной венозной недостаточности (флебопатии) отсутствуют в связи с тем, что эти варианты не изучались в эпидемиологических исследованиях. В России данные о распространенности хЗВ отсутствуют. Было проведено два исследования, но их данные сложно экстраполировать на общую популяцию, поскольку выборки были получены не случайным образом. Аналогичный недостаток свойственен также большинству западных работ, которые про-ведены на искусственно отобранных субпопуляциях, т.е. у работников какой-либо промышленности, у лиц, обратившихся за медицинской помощью по любому из поводов, у лиц определенного пола или определенной возрастной группы. точные данные можно получить только в популяционных исследованиях. К настоящему времени было проведено 7 исследова-ний, которые можно называть эпидемиологическими, но дизайн и данные этих исследований также вызывают вопросы. Можно констатировать, что, несмотря на кажущуюся изученность проблемы, разнородность известных на сегодняшний день данных, многие из которых получены с использованием устаревших систем оценки наличия заболевания, не позво-ляет говорить о точных оценках эпидемиологии хЗВ на сегодняшний день. Ключевые слова: хронические заболевания вен, эпидемиология, варикозное расширение вен, посттромботическая болезнь, функциональная венозная недостаточность Epidemiology of Chronic Venous Diseasee.I. selIVerstoV, I.P. AVAK'yAnts, A.s. nIKIshKoV, I.A. ZolotuKhIn n.I. Pirogov russian national research Medical university, russian Ministry of health, Moscow, russia this paper shows the analysis of the literature sources on the epidemiology of chronic venous disease, published in world literature since the late 50s of the last century. the differences of the prevalence of varicose veins among the adult populat...

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Prevalence of deep venous anomalies in congenital vascular malformations of venous predominance

Cited by 203 publications

References 34 publications

Tomographic anatomy of the vena cava and renal veins: features relevant to vena cava filter placement

Tomographic anatomy of the vena cava and renal veins: features relevant to vena cava filter placement

Bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman: a case report

Epidemiology of Chronic Venous Disease

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