44 research outputs found
A case of uretero-aortic fistula
No full text骨盤内容除去術及び右下腹部での二連尿管皮膚造瘻術が行われた直腸癌の69歳男で, 尿管瘻狭窄の為にdouble J stentの二尿管内持続留置を必要とした.術後2年にdouble Jカテーテル交換中に大出血が起こった.閉塞性尿管造影上, 左尿管と大動脈との交差点で尿管大動脈瘻が認められた.大動脈瘻を縫合閉鎖し, 瘻の近位側で左尿管を結紮し, 左経皮的腎瘻術を造設した.4年余の現在, 再発なく健在であるWe report a case of uretero-aortic fistula. A 69-year-old man with rectal cancer underwent a pelvic exenteration and a double--barreled cutaneous ureterostomy in the right lower abdomen. Stomal stenosis necessitated continuous indwelling of double J stents in the two ureters. Two years postoperatively, massive bleeding occurred during exchange of double J catheters. Occlusive ureterogram demonstrated a uretero-aortic fistula at the crosspoint between the left ureter and the aorta. The surgical repair consisted of closure of the aortic fistula, ligation of the left ureter proximal to the fistula and percutaneous left nephrostomy
Endovascular stent graft for management of ureteroarterial fistula : a case report
No full text76歳男.浸潤性膀胱癌に対して膀胱全摘除術ならびに回腸導管造設術を施行され, 術後, 左尿管回腸吻合部縫合不全および創感染があり, 左尿管にシングルJ尿管カテーテルを留置し保存的に治療した.しかし, 突然にストマより血尿, 血塊の排出を認め, カテーテルを再留置し止血を行ったがその後も間歇的に動脈性出血が続き, 左腎盂腎炎を併発した.膀胱癌手術, 尿管カテーテル長期留置, 間歇的動脈性出血などから尿管動脈瘻の可能性が高いと判断し, 左経皮的腎瘻造設術を施行した.術後に出血量の増加を認め, 骨盤動脈造影検査および血管内ステントグラフト留置術による止血・瘻孔修復を行った.術後経過は良好であり, 10ヵ月経過の現在, 血管内ステントグラフト位置に変化なく, 疎通性は良好であり, 合併症は認めていないWe report a case of ureteral-iliac artery fistula and its minimally invasive management with endovascular stent grafting. A 76-year-old male was admitted with massive gross hematuria from an ilial conduit. He underwent a radical cystectomy with ileal loop urinary diversion for bladder cancer 7 months ago and had undergone placement of a 7 Fr single-J ureteral catheter for repair of a partial disruption of the left ureteroileal anastomosis. Although the fistula was not confirmed radiographically, a left ureteral-common iliac artery fistula was highly suspected. The patient was treated by percutaneous placement of an autoexpandable covered stent graft across the left common iliac and left external iliac artery. After successful endovascular management of the ureteroarterial fistula, the patient's hematuria resolved and he recovered fully. During 10 months of follow up, he has been free of hemorrhagic episodes. Because open surgical repair may be difficult and associated with significant risk for complications, endovascular intervention may provide a safety treatment alternative
Estudo da formação de rebarbas no processo de furação
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoInvestigação da formação de rebarbas na usinagem, mais precisamente na furação, com o objetivo de adequar o processo, visando a minimização das rebarbas. Estudo dos efeitos da velocidade de corte, do avanço e da geometria da broca sobre o tamanho e a forma das rebarbas produzidas. Experimentos realizados em chapas de alumínio 6063-O com 3 mm de espessura. Análise das rebarbas da saída do furo; por serem maiores, de mais difícil acesso, e conseqüentemente mais problemáticas em termos de facilidade de remoção. As brocas utilizadas nos experimentos são de aço rápido, com ângulos de ponta de 100º, 118º e 135º, e ângulos de hélice de 25º, 35º e 45º, todas com 10 mm de diâmetro. A avaliação das rebarbas é feita pela suas dimensões, pelo peso e pela forma que esta apresenta. Verifica-se a ocorrência de uma diminuição substancial no tamanho da rebarba quando são empregados avanços pequenos e quando se aumenta o ângulo de hélice da broca
Identification of steroid sulfate transport processes in the human mammary gland
No full textCirculating hormones and local biotransformation of steroid precursors are both sources of estrogen in human mammary tissue. Estrone-3-sulfate (E(1)S) is an important estrogenic form in premenopausal women, and dehydroepiandrosterone sulfate (DHEAS) constitutes a major adrenal precursor. Membrane transport systems that govern delivery of these anionic steroid conjugates to the mammary gland were investigated. RNA was screened by RT-PCR and Northern blotting for expression of organic anion transporting polypeptide (OATP) (solute carrier family 21A) and organic anion transporter (OAT) (solute carrier family 22A) gene families. OATP-B (SLC21A9) was the major carrier expressed; OATP-D (SLC21A11) and OATP-E (SLC21A12) were less abundant. In normal sections, OATP-B immunolocalized to the myoepithelium that surrounds the ductal epithelial cells. In invasive carcinoma, ductal epithelial cells were positive. OATP-B was characterized in stable transfected Chinese hamster ovary cells. E(1)S affinity constant (K(m)) [K(m) = 5 micro mol/liter, maximum velocity (V(max)) V(max) = 777 pmol/mg.min] and DHEAS (K(m) = 9 micro mol/liter, V(max) = 85 pmol/mg.min) were substrates. The prostaglandins (PG) A(1) and PGA(2) stimulated uptake of E(1)S and DHEAS by increasing V(max) 2-fold but not changing K(m). The effect of PGA was selectively blocked by the lipophilic thiol reagent N-ethylmaleimide but not by the hydrophilic acetamido-4'(iodoacetyl)aminostilbene-2,2'-disulfonic acid, suggesting an interaction between the electrophilic cyclopentenone ring and specific cysteine residues of OATP-B
Flexion-extension motion assistance using an upper limb motion-assist robot based on trajectory estimation of reaching movement
No full textTécnica de Wilson no tratamento do Hálux Valgus.
No full textTrabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Clínica Cirúrgica, Curso de Medicina, Florianópolis, 199
High glucose potentiates mitogenic responses of cultured ovine coronary smooth muscle cells to platelet derived growth factor and transforming growth factor-β1
No full text
