Nihon Geka Gakkai zasshi
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Nihon Geka Gakkai zasshi · Dec 2004
[Perioperative lung injury: acute exacerbation of idiopathic pulmonary fibrosis and acute interstitial pneumonia after pulmonary resection].
The mortality rate after surgical resection for lung cancer has been reported to range between 1% and 3%, with 30% caused by acute exacerbation of idiopathic pulmonary fibrosis (IPF) or acute interstitial pneumonia (AIP). Approximately 20% of patients with IPF have lung cancer, while 2% to 4% of lung cancer patients have IPF. The incidence of postoperative acute exacerbation of IPF is about 20%. ⋯ There is no confirmed treatment or prophylaxis. Most patients who develop postoperative acute exacerbation or AIP are treated with methylpredonisolone (1,000 mg/day x 3 days), but the mortality rate is 50% or greater. We emphasize that more efforts should be made to develop strategies to prevent postoperative acute exacerbation of IPF and AIP.
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Nihon Geka Gakkai zasshi · Nov 2004
Review[Management of intravascular catheters for prevention of perioperative cross infections].
Bloodstream infection derived from an intravascular catheter occupies an important position among the various types of nosocomial infection. It is therefore necessary to establish a system for preventing catheter infection not only as measures for each separate infection, but also for the entire hospital. ⋯ In particular, there are problems with three-way stopcocks, management of hubs, frequency of transfusion line exchange, fat emulsion injection method, and blood preparation. It is most important to consider effective nutritional management methods that do not require the insertion of a central venous catheter.
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Nihon Geka Gakkai zasshi · Sep 2004
Review[Definitive chemoradiotherapy and salvage esophagectomy for squamous cell carcinoma of the esophagus].
Surgical resection has widely accepted as the first-choice treatment for esophageal carcinoma in Japan, and it has improved the survival of patients with esophageal carcinoma during the past decades. However, the survival rate remains relatively poor compared with that of other gastrointestinal carcinomas. Physical handicaps after esophagectomy also cannot be ignored. ⋯ In this case, selected patients with local failures can be salvaged by esophagectomy. In this paper we discuss recent improvements in definitive chemoradiotherapy and the definition of salvage esophagectomy. We also present our short-term results of a prospective phase II study of definitive chemoradiotherapy and salvage esophagectomy in patients with resectable squamous cell carcinoma of the esophagus.
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Regenerative medicine involves varying degrees of interaction among many research domains. Regenerative medical therapies based on research into organogenesis and the regeneration of injured or dysfunctional tissue using cell therapy are being developed rapidly. For the treatment of diabetes mellitus (DM), pancreatic transplantation and islet (pancreatic endocrine) cell transplantation are considered to be one form of regenerative medicine to overcome pancreatic tissue dysfunction. ⋯ However, unresolved problems remain, including a severe donor shortage and unexpected side effects with the longterm use of some immunosuppressive agents. With continuing advances and the clinical application of fundamental therapy for DM, a pancreatic islet cell transplantation or bioartificial pancreatic transplantation system, consisting of islet (pancreatic endocrine) cell purification, pancreatic cell proliferation techniques, immunoisolative membrane technology, and an appropriate transplantation procedure, will be effective. This paper focuses on applied research on human and/or porcine pancreatic cell purification, embryonic stem cell differentiation, and pancreatic stem cell differentiation into functional insulin-producing cells.
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Nihon Geka Gakkai zasshi · May 2004
[Evidence-based surgical therapy: the significance of randomized controlled trials].
Evidence-based medicine supplies the information to solve clinical questions but there are specific problems of randomized controlled trials in surgery. First, placebo-controlled trials are need to determine the placebo effects, but patients sometimes refuse the placebo surgery. Furthermore, it remains difficult to decide on standard surgical procedures because the participating surgeons vary in skill and experience. However, randomized controlled trials are essential for the further development of a high-quality surgical standard.