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Biomedical subjects

Shung Lee

Publications and source records attributed to Shung Lee.

2 recordsLinked to original sources

Laparoscopic aortic reconstruction: early experience.

BACKGROUND: Laparoscopic reconstruction of the abdominal aorta has been described as early as 1993. The techniques used have varied but all have been labor intensive. With advances in laparoscopic technique and the available tools, the role in aortic reconstruction is expanding. The high cost of endovascular techniques as well as the morbidity of traditional open surgery has resulted in an increased focus on the laparoscopic approach. Our goal was to determine the feasibility of this technique. METHODS: Retrospective review of the charts of patients undergoing laparoscopic aortobifemoral bypass grafting for chronic lower-limb occlusive disease. RESULTS: Thirteen patients were selected for the procedure. Ten were completed successfully and form the basis of the report. The average length of stay was 6.7 days compared with a historic cohort of 12 days. The average operative time was 6.5 hours, more than twice as long as the open technique. There was a tendency to lower blood replacement and less abdominal pain. One patient suffered a stroke postoperatively; no deaths occurred. CONCLUSION: This procedure is technically challenging but can be performed safely and successfully with adherence to several key anatomic principles. More widespread adoption of this technique may lead to improvements in the instruments and other technologies. Our very early experience is encouraging. There appear to be benefits of reduced length of stay, but improved operative times will be required to make this technique truly valuable.

Aorta, Abdominal↗

Endovascular repair of a ruptured renal artery aneurysm.

PURPOSE: To describe the percutaneous treatment of a ruptured renal artery aneurysm (RAA) using a stent-graft. CASE REPORT: An 86-year-old woman had sudden onset of right-sided back pain and a swollen left leg. Computed tomography disclosed a right retroperitoneal mass involving the kidney; the inferior vena cava was compressed, with thrombus in the left common iliac artery. There was a suggestion of RAA associated with contrast extravasation. Angiography confirmed a saccular aneurysm of the distal right main renal artery immediately proximal to the first segmental branch. A Jostent peripheral stent-graft was implanted with complete exclusion of the lesion. At 6-month follow-up, the patient remained asymptomatic, but there was a suggestion of in-stent restenosis, which is being followed closely. CONCLUSIONS: In elderly patients who are hemodynamically stable and have aneurysm anatomy that is suitable for stent-graft placement, the endovascular approach may allow rapid and definitive treatment of the hemorrhage.

Aged↗