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Morphologie ; 102(337): 78-82, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29625795


Venous punctures are among the most common procedures performed by healthcare professionals. In particular, the cubital fossa is the site where the venous accesses are frequently made due to the number of superficial veins and the numerous anastomoses in this region. The arrangement of these venous connections is of particular interest for clinical application in several areas, thus, the healthcare professional must possess knowledge about these vessels and their anatomical relationships. The present study aims to analyze the venous pattern of the cubital fossa among individuals from Brazil. This study was approved by a Research Ethics Committee. The sample had 100 healthy individuals (50 men and 50 women). The superficial veins of the cubital fossa were analyzed with the aid of a sphygmomanometer. When inflated, the pressure in the forearm increased and the veins became prominent. It was observed that in the selected sample the types with the highest prevalence were the Type I and Type VII, both with 22% in 200 limbs studied. The chi2 test showed a significant statistical difference between the anastomosis pattern and the sex of the studied sample. The anastomotic pattern of the superficial veins of the studies sample is similar to African, European and Asian populations. The study of these variations is necessary to provide scientific basis for the healthcare professional during a venipuncture in order to avoid iatrogenic errors and damages in cutaneous nerves or neighboring arteries.

Variação Anatômica , Cotovelo/irrigação sanguínea , Erros Médicos/prevenção & controle , Flebotomia/efeitos adversos , Veias/anatomia & histologia , Adolescente , Adulto , Artérias/anatomia & histologia , Brasil , Cotovelo/inervação , Feminino , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Flebotomia/métodos , Fatores Sexuais , Pele/irrigação sanguínea , Pele/inervação , Esfigmomanômetros , Adulto Jovem
Morphologie ; 101(333): 101-104, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28522228


The quadrangular space is a space in the axilla bounded by the inferior margin of the teres minor muscle, the superior margin of the teres major muscle, the lateral margin of the long head of the triceps brachii muscle and the surgical neck of the humerus, medially. The axillary nerve (C5-C6) and the posterior circumflex humeral artery and veins pass through this space in order to supply their territories. The subscapularis muscle is situated into the scapular fossa and inserts itself into the lesser tubercle of the humerus, thus helping stabilize the shoulder joint. A supernumerary muscle known as accessory subscapularis muscle originates from the anterior surface of the muscle and usually inserts itself into the shoulder joint. It is a rare variation with few reports of its existence and incidence. We present a case of the accessory subscapularis muscle in a male cadaver fixated with a 10% formalin solution. The muscle passed anteriorly to the axillary nerve, thus, predisposing an individual to quadrangular space compression syndrome. We perform a review of the literature and address its clinical, anthropological and anatomical significance.

Variação Anatômica , Plexo Braquial/anatomia & histologia , Músculo Esquelético/anormalidades , Síndromes de Compressão Nervosa/etiologia , Articulação do Ombro/anormalidades , Artéria Axilar/anatomia & histologia , Cadáver , Humanos , Masculino , Músculo Esquelético/irrigação sanguínea , Músculo Esquelético/inervação , Articulação do Ombro/irrigação sanguínea , Articulação do Ombro/inervação