• 제목/요약/키워드: Metallic stent

검색결과 43건 처리시간 0.019초

Percutaneous Placement of Self-expandable Metallic Biliary Stents in Malignant Extrahepatic Strictures: Indications of Transpapillary and Suprapapillary Methods

  • Deok Hee Lee;Jeong-Sik Yu;Jae Cheol Hwang;Ki Hwang Kim
    • Korean Journal of Radiology
    • /
    • 제1권2호
    • /
    • pp.65-72
    • /
    • 2000
  • Objective: To compare the efficacy of suprapapillary and transpapillary methods of transhepatic biliary metallic stent placement in malignant biliary strictures and to specify the indications of each method applied. Materials and Methods: Stents were placed in 59 patients. Strictures were categorized as type A (within 3 cm of the ampulla, n = 27), type B (over 3 cm from ampulla, n = 7), type C (within 3 cm of the bending portion, n = 9), or type D (over 3 cm above the bending portion, n=16). The stenting method was suprapapillary in 34 cases and transpapillary in 25. The rates of initial and long-term patency and of early recurrence were compared. Results: Initial patency rates for the suprapapillary and transpapillary methods were 1/7 (14.3%) and 20/20 (100%) respectively for type A (p < 0.0001), 4/5 (80.0%) and 2/2 for type B, 3/7 (42.9%) and 2/2 for type C, and 15/16 (93.8%) and 0/0 for type D. Early recurrence rates were 7/30 (23.3%) using the suprapapillary method and 4/29 (13.8%) using the transpapillary method (p = 0.51). The long-term patency rate did not differ significantly according to either type (p = 0.37) or method (p = 0.62). Conclusion: For good initial patency, the transpapillary method is recommended for strictures of the distal extrahepatic duct near the ampulla and just above the bending portion. Long-term patency is not influenced by the stenting method employed.

  • PDF

Risk Factors for Post-ERCP Cholangitis in Patients with Pancreatic Cancer from a Single Referral Center in Iran

  • Salehimarzijarani, Babak;Dadvar, Zohreh;Mousavi, Mirhadi;Mirsattari, Dariush;Zali, Mohammad Reza;Alizadeh, Amir Houshang Mohammad
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제13권4호
    • /
    • pp.1539-1541
    • /
    • 2012
  • Cholangitis is relatively uncommon but associated mortality is high due to the predisposition in people with underlying disease. For this recognition of contributing risk factors is necessary. Therefore, the present descriptive-analytical cross-sectional survey was designed to determine contributing risk factors for post-ERCP cholangitis in patients with pancreatic cancer. From 2005 to 2010, 110 consecutive cases of pancreatic cancer attending to a tertiary referral centre (Taleghani Hospital), Tehran, Iran were recruited. The patients all underwent stenting via endoscopic retrograde cholangiopancreatography (ERCP). On univariate analysis, a metallic stent type (95% confidence interval (CI) 1.025-11.34, P=0.037), having no jaundice (1.44-2.22, P=0.009), having no pain (1.32-1.91, P=0.026), a history of prior ERCP (1.16-10.37, P=0.020), and having a proximal biliary stone (1.002-5.93, P=0.046) were related to cholangitis. However on multivariate analysis, none of these factors were found to be contributing risk factors. Cholangitis is avoidable with adequate biliary drainage. Because success rates are higher and complication rates lower for endoscopists performing large volumes of ERCP, performance of the procedure should be concentrated as much as possible in institutions with endoscopists having adequate experience. Patients with a high risk for complications may be best served by referral to an advanced center.

기관 및 기관지결핵에 의한 반흔성 기도협착에 대한 기관지경적 Nd-YAG 레이저 치료의 효과 (Effects of Bronchoscopic Nd-YAG Laser Therapy in Tuberclous Tracheobronchial Fibrostenosis)

  • 박재용;정태훈
    • Tuberculosis and Respiratory Diseases
    • /
    • 제41권5호
    • /
    • pp.494-503
    • /
    • 1994
  • 연구배경: 기관 및 기관지결핵으로 인한 반흔성 기도협착으로 호흡곤란을 호소하는 환자들을 대상으로 Nd-YAG 레이저치료를 시행하고 그 효과를 조사하였다. 방법: 기관 및 기관지결핵으로 기도내경이 1~4mm로 심한 반흔성 기도협착이 있는 환자들을 대상으로 하였으며, 기도협착을 내시경소견에 따라 횡경막형, 허탈형 및 복합형으로 분류하고 허탈형의 기도협착은 치료대상에서 제외하고 횡경막형과 복합형의 기도협착이 있는 10명의 환자들을 대상으로 굴곡성기관지경을 통해 Nd- YAG 레이저 치료를 시행하였다. 치료효과는 치료 후 1개월에 주관적인 증상의 호전과 객관적인 검사성적의 호전 유무를 조사하여 평가하였다. 결과: 1) 기도협착의 형태는 횡경막형 1예, 복합형이 9예로 대부분 복합형이었다. 2) 기도협착 부위는 기관 2예, 좌주기관지 6예 등이었고 증상발현 기간은 12.7개월이었다. 3) 레이저치료 횟수는 평균 3.3회였고 총조사량은 평균 865 joule이었다. 4) 기도내경은 치료전 평균 1.8mm에서 치료 후 5.5mm로 유의하게 증가되었다(p<0.05). 5) 10예 가운데 8예에서 측정한 노력성폐활량(FVC)은 치료 전 평균 2.62L에서 치료 후 3.04L로 유의하게 증가되었고, 노력성폐활량 1초치도 평균 1.81L에서 치료 후 2.22L로 유의하게 증가되었다(p<0.05). 6) 10예 가운데 8예는 치료 후 호전되었으나 성대 직하방에서 용골까지 심한 기도협착이 광범위하게 있었던 1예와 기관지의 굴곡변형이 심했던 1예는 호전이 없었다. 7) 출혈 및 천공과 같은 레이저치료에 따르는 합병증은 없었으며 치료 후 호전되었던 8예는 평균 31.9개월 간의 추적기간 동안 이러한 호전이 지속되었다. 결론: 이상의 결과로 기관 및 기관지결핵으로 인한 반흔성 기도협착이 있는 환자에서 기관지경적적 Nd-YAG 레이저치료는 기도협착의 개선에 도움이 되는 것으로 생각된다.

  • PDF