• Title/Summary/Keyword: stent fixation

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Evaluation of a Double-Pigtail Ureteral Stent Fixation in Cats with Complete Ureteral Obstruction

  • Shin, Kyoung-in;Jeong, Soon-wuk
    • Journal of Veterinary Clinics
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    • v.37 no.3
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    • pp.115-122
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    • 2020
  • The aim of this study was to evaluate double-pigtail ureteral stent fixation in cats. Medical records of 19 cats (23 ureters) with complete ureteral obstruction that double-pigtail ureteral stent placement were carried out were retrospectively reviewed. The cats were randomly classified into two groups; 13 cats (16 ureters) with double-pigtail ureteral stent fixed to urinary bladder (SF group) and 6 cats (7 ureters) with not fixed to urinary bladder (SNF group). The average age and weight of the cats was 7.4 years and 3.73 kg, respectively. Postoperative complications included chronic renal failure (n = 11), lower urinary track diseases (cystitis, hematuria, pollakiuria) (n = 7), stent migration (n = 6), anemia (n = 5), ascites (n = 2), hyperthermia (n = 1), enteritis (n = 1), oliguria (n = 1), hypotension (n = 1), ureteritis (n = 1), and pyelonephritis (n = 1). Stent migration did not occur in the 16 ureters of the cats in SF group but did occur in 4 out of 7 ureters of the cats in SNF group. The prevention of stent migration by stent fixation was significant (P = 0.04). Among the 13 cats in SF group, only 2 cats developed lower urinary track diseases, while 4 of the 6 cats in SNF group showed symptoms of lower urinary track disease. Thus, the cats that underwent double-pigtail ureteral stent fixation to the urinary bladder developed significantly fewer lower urinary diseases (P = 0.046). In conclusion, double-pigtail ureteral stent fixation to the urinary bladder for treatment of complete ureteral obstruction in cats can effectively prevent stent migration, which is common complication of stent placement.

Aortic Arch Aneurysm Repair using a Prosthetic Graft with a Pre-mounted Distal Stent (Frozen Elephant Trunk) (원위부에 스텐트가 포함된 인조혈관 (Frozen Elephant Trunk)을 이용한 대동맥궁 동맥류 수술)

  • Chang, Hyoung-Woo;Chung, Eui-Suk;Choi, Jin-Ho;Lim, Cheong;Park, Kay-Hyun
    • Journal of Chest Surgery
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    • v.42 no.3
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    • pp.375-379
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    • 2009
  • Difficulty in exposing anastomotic sites is a frequently encountered problem during surgical repair of a distal aortic arch aneurysm via median sternotomy or lateral thoracotomy. Endovascular repair has th limitation that it usually requires surgical rerouting of some of the brachiocephalic branches in order to get sufficient length for proximal fixation of the stent-graft. To take advantage of each approach, we fixed the distal end of the prosthetic graft by means of a pre-mounted metallic stent instead of performing conventional surgical anastomosis during the repair of distal arch aneurysms with using median sternotomy and hypothermic circulatory arrest. We report here on our experience with such 3 patients.

THE FIBRIN-ADHESIVE SYSTEM IN MUCOSAL GRAFT VESTIBULOPLASTY (조직접착제를 이용한 점막이식 전정성형술)

  • Min, Seung-Ki
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.17 no.2
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    • pp.130-136
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    • 1995
  • Vestibuloplasty are following categories : Mucosal advancement(submucous), secondary epithlization(reepithelization) and grafting vestibuloplasty. Although certain procedures are indicated for alveolar bone loss and sulcus shortening, relapse can occur. Every efforts to minimize or compensate for it is controversy. O'Steen(1970) reported the mucous graft methods that none of vestibular shrinkage and graft contracture. 15patients in mucous graft vestibuloplasty with fibrin adhesive system(Beriplast) were taken in cases of alveolar bone resorption and mucosal shortening due to traumatized alveolar bone defects, senile atrophic alveolar bone, postoperative cyst or tumor resection, edentulous alveolar bone loss, and others. A technique in the use of small piece of palatal mucosa$(1{\times}20mm)$ from the lateral aspect of the palate with adhesive system provided to secure the skin grafts, avoid stent fixation, postoperative patient's comfort and less time-consuming than the standard technique, especially excellent bleeding control.

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Perforated Afferent Loop Syndrome in a Patient with Recurrent Gastric Cancer: Non-Surgical Treatment with Percutaneous Transhepatic Duodenal Drainage and Endoscopic Stent (재발된 위암 환자에서 발생한 천공성 수입각 증후군의 비수술적 치료)

  • Song Kyo Young;Son Chang Hee;Park Cho Hyun;Kim Seung Nam
    • Journal of Gastric Cancer
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    • v.4 no.3
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    • pp.176-179
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    • 2004
  • Surgical treatment for afferent loop syndrome (ALS) in patients with recurrent gastric cancer is usually not feasible because of the recurrent tumor mass at the anastomosis site and/or extensive carcinomatosis resulting in bowel loop fixation. Furthermore, ALS usually makes oral intake impossible, resulting in a rapid deterioration in general condition. In this situation, gastroscopic stenting at the anastomotic site and/or percutaneous external drainage may be a more feasible alternative for palliation. We herein report a recurrent gastric cancer whose ALS was successfully treated with internal and external drainage procedures.

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A Simple Surgical Guide for Horizontal Bone Graft: A Technical Note

  • Ahn, Kang-Min
    • Journal of International Society for Simulation Surgery
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    • v.3 no.2
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    • pp.90-92
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    • 2016
  • Horizontal bone defect in the anterior maxilla makes it difficult to place dental implant. The golden standard for bone augmentation is autogenous block bone graft. Tight contact with recipient site and rigid fixation are two key factors for successful block bone graft. Ramal bone graft has been the most reliable methods for dental implant field. However, the curvature of the alveolar ridge is different from ramal bone shape. Intraoperative trimming of ramal bone is cumbersome for surgeon. In this technical note, a simple way to design the ramal bone harvest using bone wax stent is reviewed.