PPH术(procedure for prolapse and hemorrhoids)又称吻合器痔上黏膜环切术,通过环形切除、吻合痔上黏膜及黏膜下层组织治疗Ⅲ、Ⅳ期脱垂性内痔,具有创伤小、疼痛轻、住院时间短、并发症少、复发率低的优势[1]。本科自2013年3月开始对...PPH术(procedure for prolapse and hemorrhoids)又称吻合器痔上黏膜环切术,通过环形切除、吻合痔上黏膜及黏膜下层组织治疗Ⅲ、Ⅳ期脱垂性内痔,具有创伤小、疼痛轻、住院时间短、并发症少、复发率低的优势[1]。本科自2013年3月开始对PPH手术患者采用中医特色护理,取得了较好的疗效,现报告如下。展开更多
1998年Longo报道通过直肠下端黏膜及黏膜下层组织环形切除治疗Ⅲ、Ⅳ度脱垂内痔的新方法,又称吻合器痔上黏膜环切术(procedure for prolapse and hemorrhoid,PPH),取得满意疗效并在国内外迅速得到推广。但PPH器械价格昂贵,多数需...1998年Longo报道通过直肠下端黏膜及黏膜下层组织环形切除治疗Ⅲ、Ⅳ度脱垂内痔的新方法,又称吻合器痔上黏膜环切术(procedure for prolapse and hemorrhoid,PPH),取得满意疗效并在国内外迅速得到推广。但PPH器械价格昂贵,多数需要椎管内麻醉,且术后并发症不少,较大程度上限制了该技术的普及。上海市利群医院于2010年应用肛门周围局部浸润麻醉下实施PPH治疗脱垂性内痔,获得较好的临床效果,报道如下。展开更多
A 59-year-old woman was admitted to our hospital because of recurrent follicular lymphoma(FL).Colonoscopic examination revealed a rectal submucosal tumor(SMT)without any erosions and ulcers.In this patient,it was diff...A 59-year-old woman was admitted to our hospital because of recurrent follicular lymphoma(FL).Colonoscopic examination revealed a rectal submucosal tumor(SMT)without any erosions and ulcers.In this patient,it was difficult to distinguish non-Hodgkin's lymphoma(NHL)invasion from other disorders of the colon including carcinoid tumor merely based on endoscopic findings.Histopathologic and immunohistochemical studies on biopsy specimens showed an infiltration of atypical lymphocytes that were positive for CD20 and BCL2 but negative for UCHL-1.Fluorescence in situ hybridization on paraffin-embedded tissue sections (T-FISH)identified a translocation of BCL2 with IGHgene. Based on these findings,the tumor was defined as an invasion of FL.T-FISH method is useful for the detection of a monoclonality of atypical lymphocytes in an SMT of the gastrointestinal tract,and particularly for the detection of chromosomal translocations specific to lymphoma subtypes.展开更多
环形切除、吻合痔上直肠黏膜及黏膜下层组织治疗Ⅲ、Ⅳ期脱垂性内痔(Procedure for Prolapse and Hemorrhoids,PPH)在国内外得到普遍推广[1-2],成为治疗内痔的有效方法。做好PPH手术患者的术前术后护理对PPH手术顺利进行及取得良好...环形切除、吻合痔上直肠黏膜及黏膜下层组织治疗Ⅲ、Ⅳ期脱垂性内痔(Procedure for Prolapse and Hemorrhoids,PPH)在国内外得到普遍推广[1-2],成为治疗内痔的有效方法。做好PPH手术患者的术前术后护理对PPH手术顺利进行及取得良好效果有着重要作用。展开更多
The superplastic forming of Ti alloy welds has great application prospects in producing integrated components. However, the nugget zone(NZ) of the Ti alloy welds,produced by fusion welding or conventional friction s...The superplastic forming of Ti alloy welds has great application prospects in producing integrated components. However, the nugget zone(NZ) of the Ti alloy welds,produced by fusion welding or conventional friction stir welding(FSW), consists of lamellar micro structure, which exhibits either low superplasticity or high superplastic temperautre and low strain rate. As a result, the NZ plays a leading role in hindering the superplastic forming of the whole welds.In this study, submerged friction stir welding(SFSW) was conducted in Ti-6Al-4 V alloy for the first time, and a defectfree weld with the NZ consisting of a strip microstructure was obtained. The NZ exhibited a low-temperature superplasticity at 600℃, which was the lowest superplastic temperature ever reported in the Ti alloy welds. Besides, at 800℃, the NZ showed high strain rate(3×10^(-2) s^(-1)) superplasticity and a largest elongation of 615% at 1×10^(-3) s^(-1). Compared to conventional FSW joints, the NZ of SFSW joint exhibited a much lower flow stress and a decrease in optimal superplastic temperature by 100℃. This is mainly attributed to the easy globularization of the strip microstructure, enhancing the ability of grain/phase boundary sliding.展开更多
文摘PPH术(procedure for prolapse and hemorrhoids)又称吻合器痔上黏膜环切术,通过环形切除、吻合痔上黏膜及黏膜下层组织治疗Ⅲ、Ⅳ期脱垂性内痔,具有创伤小、疼痛轻、住院时间短、并发症少、复发率低的优势[1]。本科自2013年3月开始对PPH手术患者采用中医特色护理,取得了较好的疗效,现报告如下。
文摘1998年Longo报道通过直肠下端黏膜及黏膜下层组织环形切除治疗Ⅲ、Ⅳ度脱垂内痔的新方法,又称吻合器痔上黏膜环切术(procedure for prolapse and hemorrhoid,PPH),取得满意疗效并在国内外迅速得到推广。但PPH器械价格昂贵,多数需要椎管内麻醉,且术后并发症不少,较大程度上限制了该技术的普及。上海市利群医院于2010年应用肛门周围局部浸润麻醉下实施PPH治疗脱垂性内痔,获得较好的临床效果,报道如下。
文摘A 59-year-old woman was admitted to our hospital because of recurrent follicular lymphoma(FL).Colonoscopic examination revealed a rectal submucosal tumor(SMT)without any erosions and ulcers.In this patient,it was difficult to distinguish non-Hodgkin's lymphoma(NHL)invasion from other disorders of the colon including carcinoid tumor merely based on endoscopic findings.Histopathologic and immunohistochemical studies on biopsy specimens showed an infiltration of atypical lymphocytes that were positive for CD20 and BCL2 but negative for UCHL-1.Fluorescence in situ hybridization on paraffin-embedded tissue sections (T-FISH)identified a translocation of BCL2 with IGHgene. Based on these findings,the tumor was defined as an invasion of FL.T-FISH method is useful for the detection of a monoclonality of atypical lymphocytes in an SMT of the gastrointestinal tract,and particularly for the detection of chromosomal translocations specific to lymphoma subtypes.
基金supported by the National Natural Science Foundation of China under Grant(51471171,51601194,and 51331008)
文摘The superplastic forming of Ti alloy welds has great application prospects in producing integrated components. However, the nugget zone(NZ) of the Ti alloy welds,produced by fusion welding or conventional friction stir welding(FSW), consists of lamellar micro structure, which exhibits either low superplasticity or high superplastic temperautre and low strain rate. As a result, the NZ plays a leading role in hindering the superplastic forming of the whole welds.In this study, submerged friction stir welding(SFSW) was conducted in Ti-6Al-4 V alloy for the first time, and a defectfree weld with the NZ consisting of a strip microstructure was obtained. The NZ exhibited a low-temperature superplasticity at 600℃, which was the lowest superplastic temperature ever reported in the Ti alloy welds. Besides, at 800℃, the NZ showed high strain rate(3×10^(-2) s^(-1)) superplasticity and a largest elongation of 615% at 1×10^(-3) s^(-1). Compared to conventional FSW joints, the NZ of SFSW joint exhibited a much lower flow stress and a decrease in optimal superplastic temperature by 100℃. This is mainly attributed to the easy globularization of the strip microstructure, enhancing the ability of grain/phase boundary sliding.