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1.
Clin. biomed. res ; 36(1): 47-49, 2016.
Article in English | LILACS | ID: lil-788742

ABSTRACT

Splenic artery aneurysm is a rare condition with a prevalence of less than 1% in the general population and is more common in women; however, it is the third most common cause of intra-abdominal aneurysms and the most common among visceral arterial aneurysms1. This condition was first described by Beussier in 1770; some of the risk factors often described are: fibrodysplasia, portal hypertension, splenomegaly, cirrhosis of the liver, liver transplant, pancreatitis, vasculitis, infectious mononucleosis, and pregnancy1-6.Pregnancy is considered the most important risk factor for the rupture of this aneurysm, but the true prevalence of this event is unknown2. Increased splanchnic and splenic circulation during pregnancy has been indicated as one of the main factors in the development of aneurysms. The modifications in circulation induced by estrogen and progesterone during pregnancy may also contribute to weakening blood vessel walls, especially at the bifurcations. It is speculated that the greater the woman’s parity the greater the risk of development and rupture of the aneurysm, due to the successive stresses to which the vessel wall is submitted3.The importance of an adequate diagnosis and management of this condition, despite its low prevalence, is supported by the high rates of maternal and fetal mortality, 75 and 95%, respectively3.


Subject(s)
Humans , Female , Pregnancy , Obstetric Labor Complications , Splenic Rupture
3.
Acta cir. bras ; 25(1): 34-36, jan.-fev. 2010. tab, ilus
Article in English | LILACS | ID: lil-537119

ABSTRACT

PURPOSE: To verify the frequency of postsurgical pelvic adhesion formation in an experimental animal model using videolaparoscopy. METHODS: Experimental study in a sample of 11 non-pregnant female rabbits, aged 5 to 7 months. After general anesthesia, access to the abdominal cavity was performed by an open puncture technique, with 10mm optics, placing two other 5 mm trochars under direct visualization, in the iliac fossae. Then a fragment of peritoneum was resected, followed by electrocauterization. In 21 days, the videolaparoscopy was repeated, and adhesion formation and score was looked at, with biopsies at the surgical site. RESULTS: 54 percent of adhesion formation was observed, and the median score of adhesions was 6 (minimum of 3 and maximum of 10), all of them found in the bladder and the anterior abdominal wall. CONCLUSION: The method used presents a high frequency of intra-abdominal adhesion formation.


OBJETIVO: Verificar a freqüência da formação de aderências pélvicas pós-cirúrgicas, em um modelo experimental animal, por videolaparoscopia. MÉTODOS: Estudo experimental, em uma amostra de 11 coelhas, não prenhas, com idade entre cinco e sete meses. Após anestesia geral, o acesso da cavidade abdominal foi efetuado por técnica de punção aberta, com óptica de 10 mm, colocando-se outros dois trocateres de 5 mm, sob visão direta, nas fossas ilíacas. Realizou-se, então, ressecção de fragmento de peritônio, seguida de cauterização com eletrocautério. Em 21 dias, foi repetida a videolaparoscopia, verificando-se a formação e escore de aderências e realizando-se biópsias do local da cirurgia. RESULTADOS: Observou-se 54,5 por cento de formação de aderências, sendo o escore total mediano de aderências seis (mínimo de três e máximo de 10), todas encontradas na bexiga e na parede abdominal anterior. CONCLUSÃO: O procedimento utilizado apresentou alta freqüência de formação de aderências intra-abdominais.


Subject(s)
Animals , Female , Rabbits , Laparoscopy/adverse effects , Peritoneal Diseases/pathology , Video-Assisted Surgery/adverse effects , Laparoscopy/methods , Models, Theoretical , Peritoneal Diseases/etiology , Tissue Adhesions/etiology , Tissue Adhesions/pathology
4.
Acta cir. bras ; 25(1): 121-125, jan.-fev. 2010. ilus, tab
Article in English | LILACS | ID: lil-537132

ABSTRACT

PURPOSE: To describe the anesthetic protocol and the intubation technique without visualizing the trachea in rabbits, in order to enable the videolaparoscopic surgical procedure. METHODS: The experiment was performed on 33 female rabbits (Oryctolagus cuniculus), aged from 5 to 7 months. It consisted of general anesthesia and endotracheal intubation by manual palpation of the trachea of the rabbits, without using the laryngoscope, orally, for later videolaparoscopic surgical access to the abdominal cavity. RESULTS: The mean values and standard deviation of vital parameters of the animals were 223.8±15.61 beats per minute for heart rate; 35±9 movements per minute for respiratory rate; 96.94±0.99 percent of oxymetry and 42.82±4.02 mmHg for capnometry; 16.7±4.3 minutes for pneumoperitoneum (duration of surgery) and 1 hour and 14±8.52 minutes for time of observation (from induction to recovery from anesthesia). All animals were intubated in at most three attempts. No animals were lost after the introduction of this anesthetic technique. CONCLUSION: This protocol proved adequate, safe and easy to perform, on rabbits submitted to videolaparoscopic surgery.


OBJETIVO: Descrever o protocolo anestésico e a técnica de intubação sem visualização da traqueia em coelhos, para viabilização de procedimento cirúrgico videolaparoscópico. MÉTODOS: O experimento foi realizado em 33 coelhas (Oryctolagus cuniculus), com idade entre 5 e 7 meses. Consistiu de anestesia geral e intubação endotraqueal por meio de palpação manual da traquéia das coelhas, sem o uso de laringoscópio, pela via oral, para posterior acesso cirúrgico videolaparoscópico da cavidade abdominal. RESULTADOS: Os valores médios e desvio padrão dos parâmetros vitais dos animais foram de 223,8±15,61 batimentos por minuto para freqüência cardíaca; 35±9 movimentos por minuto para frequência respiratória; 96,94±0,99 por cento de oximetria e 42,82±4,02 mmHg para capnometria; 16,7±4,3 minutos para o pneumoperitônio (tempo de cirurgia) e 1 hora e 14±8,52 minutos para o tempo de observação (desde a indução até a recuperação anestésica). Todos os animais foram intubados em, no máximo, três tentativas. Não houve perda de animais após a introdução dessa técnica anestésica. CONCLUSÃO: Este protocolo mostrou-se adequado, seguro e de fácil realização, para a aplicação em coelhos submetidos à cirurgia videolaparoscópica.


Subject(s)
Animals , Female , Rabbits , Anesthesia, General/methods , Clinical Protocols/standards , Intubation, Intratracheal/methods , Laparoscopy , Video-Assisted Surgery , Heart Rate/physiology , Respiratory Rate/physiology
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