Sagittal plane analysis of the open and closed methods in children with displaced supracondylar fractures of the humerus (a radiological study)

OBJECTIVES: The aim of this study was to compare the radiological outcome of open and close reduction and osteosynthesis methods in the treatment of type II and III supracondylar humerus fractures in childhood with respect to the immediate post-operative reduction quality in sagittal plane. METHOD: One hundred and forty four-pediatric patients with type IIb and III supracondylar humerus fractures treated at two centers between 1995 and 2005 were evaluated radiologically within a retrospective study. Seventy-six patients (54 boys, 22 girls, mean age 7.6, range 2-12) were treated by closed reduction and cross percutaneous pinning while 68 (49 boys, 19 girls, mean age 7.3, range 2-13) were treated by open reduction. The reduction quality of the open and closed groups was compared on immediate post-operative lateral radiographs by measuring of lateral humerocapitellar angle, anterior humeral line and anterior coronoid line criteria. The reduction quality was classified excellent, good, fair and poor according to the achievement of three, two, one or none of the criteria, respectively. Reductions classified as excellent and good were introduced as acceptable results. RESULTS: At least one criterion was achieved in all the patients of both the groups. The mean humerocapitellar angle was 30.1 degrees in closed reduction group while the mean of it was 29.8 degrees in open reduced group. Radiograph of 48 (63.1%) patients with closed reduction were found to display the anterior humeral line intersecting the middle one-third of capitellum while this criteria was 45 (66%) in open reduction group. The anterior coronoid line was disturbed in three patients in each of both the groups. The reduction quality was evaluated to be excellent in 32 patients, good in 31, fair in 13 at the closed reduction group while these evaluations were 31, 20 and 17 in open reduction group, respectively. Successful reduction was achieved in 74.9% of the patients in closed reduction group and 75% of the patients in open reduction group. CONCLUSION: It is concluded that there was no significant difference between closed and open reductions of pediatric displaced supracondylar fractures with regard to the radiological criteria of reduction quality in sagittal plane.     

Comprehensive review of post–organ transplant hematologic cancers

A higher risk for a variety of cancers is among the major complications of posttransplantation immunosuppression. In this part of a continuing series on cancers posttransplantation, this review focuses on the hematologic cancers after solid organ transplantation. Posttransplantation lymphoproliferative disorders (PTLDs), which comprise the great majority of hematologic cancers, represent a spectrum of conditions that include, but are not limited to, the Hodgkin and non‐Hodgkin lymphomas. The oncogenic Epstein‐Barr virus is a key pathogenic driver in many PTLD cases, through known and unknown mechanisms. The other hematologic cancers include leukemias and plasma cell neoplasms (multiple myeloma and plasmacytoma). Clinical features vary across malignancies and location. Preventive screening strategies have been attempted mainly for PTLDs. Treatments include the chemotherapy regimens for the specific cancers, but also include reduction of immunosuppression, rituximab, and other therapies.     

Decreasing incidence of cancer after liver transplantation—A Nordic population‐based study over 3 decades

Cancer remains one of the most serious long‐term complications after liver transplantation (LT). Data for all adult LT patients between 1982 and 2013 were extracted from the Nordic Liver Transplant Registry. Through linkage with respective national cancer‐registry data, we calculated standardized incidence ratios (SIRs) based on country, sex, calendar time, and age‐specific incidence rates. Altogether 461 cancers were observed in 424 individuals of the 4246 LT patients during a mean 6.6‐year follow‐up. The overall SIR was 2.22 (95% confidence interval [CI], 2.02‐2.43). SIRs were especially increased for colorectal cancer in recipients with primary sclerosing cholangitis (4.04) and for lung cancer in recipients with alcoholic liver disease (4.96). A decrease in the SIR for cancers occurring within 10 years post‐LT was observed from the 1980s: 4.53 (95%CI, 2.47‐7.60), the 1990s: 3.17 (95%CI, 2.70‐3.71), to the 2000s: 1.76 (95%CI, 1.51‐2.05). This was observed across age‐ and indication‐groups. The sequential decrease for the SIR of non‐Hodgkin lymphoma was 25.0‐12.9‐7.53, and for nonmelanoma skin cancer 80.0‐29.7‐10.4. Cancer risk after LT was found to be decreasing over time, especially for those cancers that are strongly associated with immunosuppression. Whether immunosuppression minimization contributed to this decrease merits further study.     

Risk of lip cancer after solid organ transplantation in the United States

Solid organ transplant recipients have an increased risk of lip cancer, but the reasons are uncertain. Using data from the Transplant Cancer Match Study, we describe the epidemiology of lip cancer among 261 500 transplant recipients in the United States. Two hundred thirty‐one lip cancers were identified, corresponding to elevated risks for both invasive and in situ lip cancers (standardized incidence ratios of 15.3 and 26.2, respectively). Invasive lip cancer incidence was associated with male sex (adjusted incidence rate ratio [aIRR] 2.01, 95% CI 1.44‐2.82), transplanted organ (0.33, 0.20‐0.57, for liver transplants and 3.07, 1.96‐4.81, for lung transplants, compared with kidney transplants), and racial/ethnic groups other than non‐Hispanic whites (0.09, 0.04‐0.2). In addition, incidence increased with age and during the first 3 years following transplant, and was higher in recipients prescribed cyclosporine/azathioprine maintenance therapy (aIRR 1.79, 95% CI 1.09‐2.93, compared with use of tacrolimus/mycophenolate mofetil) and following a diagnosis of cutaneous squamous cell carcinoma (4.21, 2.69‐0.94). The elevation in lip cancer incidence is consistent with an effect of immunosuppression. Notably, the very strong associations with white race and history of prior skin cancer point to an important role for ultraviolet radiation exposure, and cyclosporine and azathioprine may contribute as photosensitizing or DNA damaging agents.     

梗阻性黄疸患者血浆可溶性P-选择素与内毒素、D-二聚体的关系及其意义

目的　研究梗阻性黄疸 (梗黄 )患者血浆可溶性P -选择素 (sP selectin ,sP s)与内毒素 (ET )及D -二聚体 (D d)的关系及其意义。方法　应用ELISA和鲎试剂比色法测定梗黄组、急性胆囊炎组和健康人组血浆sP s ,D d和ET含量。结果　健康人组血浆sP s含量为 (93 .43± 17.65 )ng/ml ,ET (0 .0 0 3 0± 0 .0 0 0 4)EU /ml ,D d(0 .3 9± 0 .2 1)mg/L ;急性胆囊炎组血浆sP s含量为 (2 3 3 .3 2± 82 .12 )ng/ml ,ET (0 .40 12± 0 .15 0 6)EU /ml ,D d(0 .76± 0 .2 7)mg/L ;梗黄组血浆sP s含量为 (3 5 1.90± 93 .83 )ng/ml ,ET(0 .3 814± 0 .14 3 0 )EU /ml ,D d(2 .14± 0 .3 7)mg/L。急性胆囊炎组和梗黄组sP s ,D d及ET均高于健康人组 (P <0 .0 1) ;梗黄组ET与急性胆囊组差异无显著性 ,但梗黄组sP s和D d较急性胆囊炎组高 (P <0 .0 1) ,梗黄组的以上二物质含量呈正相关性 (P <0 .0 1) ;急性胆囊炎组sP s与ET呈正相关性 (P <0 .0 1)。协方差分析表明 ,在相同ET含量时 ,梗黄组sP s高于急性胆囊炎组 (P <0 .0 1) ,且与D d有相关性 ,二者有相同变化趋势。结论　胆道梗阻是ET致血管内皮细胞损伤和血小板活化的敏感性因素 ,梗黄患者血液高凝状态与继发性纤溶反应处于动态平衡 ,提示动态监测血浆sP s和D d变化 ,     

胆囊炎患者胆汁中内皮素浓度的意义

目的探讨胆囊炎患者胆汁中内皮素浓度及其意义。方法采用放射免疫分析法测定了４０４例单纯型、４８例化脓型和２７例坏疽型结石性胆囊炎患者胆汁中内皮素浓度。结果三型胆囊炎患者胆汁内皮素浓度分别为２７４±８３ｐｇ／ｍｌ,４２３±１１１ｐｇ／ｍｌ和６７５±１３８ｐｇ／ｍｌ,与对照组测值１９４±４７ｐｇ／ｍｌ比较,具有显著性差异（Ｐ＜０．０５～０．０１）。结论胆汁中内皮素参与了胆囊炎的病理过程,其作用机制尚需深入研究。     

肾脏黏液样小管状和梭形细胞癌(附2例报道及文献复习)

目的 探讨肾脏黏液样小管状和梭形细胞癌(Mucinous tubular and spindle cell carcinoma,MTSCC)的临床及病理学特点.方法 对本院收治的2例肾脏黏液样小管状和梭形细胞癌患者临床及病理特点进行观察和讨论并结合相关文献复习.结果 2例患者术后诊断:肾脏黏液样小管状和梭形细胞癌.临床及病理特征符合相关文献对该型肾癌的报道,术后长期严密随访无复发.结论 MTSCC是罕见的肾癌分型,症状隐匿,具有独特的病理学特征,早期手术是最佳治疗方法,预后良好,罕见预后较差报道.     

Epidemiologic perspectives on immunosuppressed populations and the immunosurveillance and immunocontainment of cancer

The advent in the last several years of effective immunotherapy for cancer has renewed interest in the role of the immune system in controlling cancer. The idea that the immune system can help control cancer has a long history. Solid organ transplant recipients (SOTRs) as well as human immunodeficiency virus (HIV)–infected people are affected by cell‐mediated immune dysfunction. Epidemiologic studies of these populations reveal a pattern characterized by a strongly increased incidence of virus‐related cancers (eg, Kaposi sarcoma, non‐Hodgkin lymphoma, and anogenital cancers). In addition, recent epidemiologic studies have evaluated cancer‐specific mortality among SOTRs and HIV‐infected people following a cancer diagnosis. For a wider range of cancers—not limited to those caused by viruses, and including melanoma and cancers of the colorectum, lung, and breast— these immunosuppressed cancer patients have higher cancer‐specific mortality than other cancer patients. This latter group of cancers somewhat mirrors those for which immunotherapy with checkpoint inhibitors is approved. These epidemiologic observations suggest that there are 2 distinct immune selection processes in humans: immunosurveillance directed against premalignant cells before cancer diagnosis (most relevant for preventing virus‐related cancers), and “immunocontainment” directed against established cancers. These processes thus appear relevant for different groups of malignancies and may have different mechanisms.     

胃切除术后应用改良Braun术式重建胃肠道预防返流性胃炎

目的探讨预防胃十二指肠溃疡术后碱性返流性胃炎的发生和逆转原残胃粘膜的炎性病变的新手术治疗方法。方法采用胃部分切除术后改良Ｂｒａｕｎ术式对胃十二指肠球部溃疡病急性穿孔并弥漫性腹膜炎２３例病人进行治疗。术后１～２年随访２２例，其中１９例行胃镜复查及残胃液甘胆酸（ＣＧ）测定、幽门螺杆菌（ＨＰ）检查。９例钡餐透视观察残胃排空情况。结果所有病人术后恢复好，Ｖｉｓｉｃｋ分级优良率为９５７％；残胃炎消除率为７３７％；ＨＰ感染率由术前的５８％降至２１％；胃镜及钡餐检查无１例出现胆汁返流，仅１例残胃排空延迟钡餐检查为输出袢粘连。结论改良Ｂｒａｕｎ术式的应用可有效地减少残胃炎发生，对预防残胃炎及残胃癌发生有积极意义     

Light Chain Podocytopathy Mimicking Recurrent Focal Segmental Glomerulosclerosis

Kidney injury related to paraproteinemia is common and typically occurs after the fourth decade of life in association with an underlying plasma cell dyscrasia or other lymphoproliferative disease. Kidney transplantation in paraprotein‐related kidney disease can be successful in conjunction with treatment of the underlying hematopoietic process; however, when hematologic response to therapy is not achieved, recurrent kidney injury is frequently seen. We describe a young male patient who presented at the age of 23 years with end‐stage kidney disease thought to be secondary to focal segmental glomerulosclerosis; this patient ultimately received two kidney allografts. He experienced recurrent proteinuria in both kidneys, with a biopsy from his second allograft showing kappa‐restricted crystalline light chain podocytopathy, which was identified in both his native and first allograft kidneys upon retrospective review. Recurrent light chain podocytopathy has not been previously reported but poses a diagnostic challenge as it can mimic focal segmental glomerulosclerosis, particularly in young patients in whom paraprotein‐related kidney injury is usually not suspected.     

急性出血坏死性胰腺炎并发胃肠瘘的外科治疗

目的探讨急性出血坏死性胰腺炎（ＡＨＮＰ）并发胃肠瘘的手术治疗时机及其对转归的影响。方法对我院１９８３年８月～１９９８年７月收治的ＡＨＮＰ并发胃肠瘘３３例的临床资料进行回顾性分析。结果３３例中，男２１例，女１２例，年龄４４～６９（平均５６４）岁。病程３９ｄ～１３个月，平均３６个月。２７例痊愈，６例死亡。死亡原因主要是胃肠瘘导致难治性腹腔感染，继发败血症及多器官功能衰竭。结论ＡＨＮＰ并发胃肠瘘与继发感染，胃肠血管栓塞所致血运障碍，多次手术损伤和引流放置不当或时间过长有关。治疗的关键是早期诊断，并应根据病情的不同，选择适当的手术时间和手术方式，以提高治愈率。     

甲状腺髓样癌

目的探讨甲状腺髓样癌的诊断要点及临床治疗原则。方法对我院１９７６～１９９６年收治的８８例甲状腺髓样癌的临床资料进行回顾性分析。结果患者均以颈部肿块就诊,可伴发腹泻。病理证实淋巴结转移率７３２４％。散发型甲状腺髓样癌８６例,家族型甲状腺髓样癌２例。误诊率２３８６％（２１／８８）。治疗方法均以手术切除原发灶或合并颈淋巴结清除为主。术后随访局部广泛切除术的５,１０,１５年存活率分别为４５４５％,２５００％,１００％;合并行颈部淋巴清扫术的５,１０,１５年存活率分别为７２４１％,６３１６％,６６６７％。结论甲状腺髓样癌术前确诊困难,但有下列情况应考虑本病：不论甲状腺是否触及肿块,但有淋巴结肿大并伴有顽固性非炎性腹泻者;有家族史者;血清降钙素明显高于或低于正常者。作者主张不论是否触及肿大淋巴结,对甲状腺髓样癌均应行原发灶根治性切除加同侧颈部淋巴清扫术。     

Risk Factors for De Novo Malignancy Following Lung Transplantation

Risk factors for non–skin cancer de novo malignancy (DNM) after lung transplantation have yet to be identified. We queried the United Network for Organ Sharing database for all adult lung transplant patients between 1989 and 2012. Standardized incidence ratios (SIRs) were computed by comparing the data to Surveillance, Epidemiology, and End Results Program data after excluding skin squamous/basal cell carcinomas. We identified 18 093 adult lung transplant patients; median follow‐up time was 1086 days (interquartile range 436–2070). DNMs occurred in 1306 patients, with incidences of 1.4%, 4.6%, and 7.9% at 1, 3, and 5 years, respectively. The overall cancer incidence was elevated compared with that of the general US population (SIR 3.26, 95% confidence interval [CI]: 2.95–3.60). The most common cancer types were lung cancer (26.2% of all malignancies, SIR 6.49, 95% CI: 5.04–8.45) and lymphoproliferative disease (20.0%, SIR 14.14, 95% CI: 9.45–22.04). Predictors of DNM following lung transplantation were age (hazard ratio [HR] 1.03, 95% CI: 1.02–1.05, p < 0.001), male gender (HR 1.20, 95% CI: 1.02–1.42, p = 0.03), disease etiology (not cystic fibrosis, idiopathic pulmonary fibrosis or interstitial lung disease, HR 0.59, 95% CI 0.37–0.97, p = 0.04) and single‐lung transplantation (HR 1.64, 95% CI: 1.34–2.01, p < 0.001). Significant interactions between donor or recipient smoking and single‐lung transplantation were noted. On multivariable survival analysis, DNMs were associated with an increased risk of mortality (HR 1.44, 95% CI: 1.10–1.88, p = 0.009).     

Incidence and Predictors of Cancer Following Kidney Transplantation in Childhood

Cancer risk is increased substantially in adult kidney transplant recipients, but the long‐term risk of cancer in childhood recipients is unclear. Using the Australian and New Zealand Dialysis and Transplant Registry, the authors compared overall and site‐specific incidences of cancer after transplantation in childhood recipients with population‐based data by using standardized incidence ratios (SIRs). Among 1734 childhood recipients (median age 14 years, 57% male, 85% white), 289 (16.7%) developed cancer (196 nonmelanoma skin cancers, 143 nonskin cancers) over a median follow‐up of 13.4 years. The 25‐year cumulative incidences of any cancer were 27% (95% confidence intervals 24–30%), 20% (17–23%) for nonmelanoma skin cancer, and 14% (12–17%) for nonskin cancer (including melanoma). The SIR for nonskin cancer was 8.23 (95% CI 6.92–9.73), with the highest risk for posttransplant lymphoproliferative disease (SIR 45.80, 95% CI 32.71–62.44) and cervical cancer (29.4, 95% CI 17.5–46.5). Increasing age at transplantation (adjusted hazard ratio [aHR] per year 1.10, 95% CI 1.06–1.14), white race (aHR 3.36, 95% CI 1.61–6.79), and having a functioning transplant (aHR 2.27, 95% CI 1.47–3.71) were risk factors for cancer. Cancer risk, particularly for virus‐related cancers, is increased substantially after kidney transplantation during childhood.     

Donor Monoclonal Gammopathy May Cause Lymphoproliferative Disorders in Solid Organ Transplant Recipients

Prior research on donor monoclonal gammopathy of undetermined significance (MGUS) has been inadequate regarding the risk for lymphoproliferative disease in solid organ transplantation recipients. Seven organ recipients from two different donors developed lymphoproliferative disease. The origin of the malignancy was determined by use of microsatellite analysis, and the plasma of the two donors was analyzed with the use of electrophoresis. The clinical courses of the seven recipients were followed for 36–60 months. One donor transmitted lymphoplasmacytic lymphoma to two kidney recipients and MGUS to a liver recipient, all IgMκ. A second donor caused IgGλ myeloma in two kidney and one liver recipient, and IgGλ gammopathy in a heart recipient. Transplant nephrectomy was performed in three kidney recipients and remission was achieved. The fourth kidney recipient has kept the graft and the disease has progressed. The liver recipient died from myeloma. There were no clinical signs of lymphoproliferative disease in the donors, but retrospective serum analyses showed M‐components, IgMκ (37 g/L) and IgGλ (8 g/L). Donors with MGUS may cause donor‐transmitted malignancies via passenger lymphocytes/plasma cells in solid organ recipients. The results call for a large register study of the incidence of donor MGUS and lymphoproliferative disease in their recipients.     

十二指肠损伤的术式选择

目的探讨十二指肠损伤后手术方式的选择和手术效果。方法对本院１９８８～１９９８年１０年间手术治疗的３１例十二指肠损伤病人临床资料进行回顾性分析。结果①十二指肠损伤复合伤发生率高，合并其它脏器损伤者占７４％（２３例），其中合并胰损伤占２６％（８例）；②术前诊断率低，仅为１６％（５例）；剖腹探查中仍有３例（１０％）漏诊；③术式选择：单纯的十二指肠损伤以修补为主；十二指肠壁有缺损或合并有胰腺损伤，可采用浆膜覆盖术或十二指肠憩室化等其它手术；同时应有良好的十二指肠减压和腹腔引流；④术后并发症及死亡率发生率较高。本组死亡６例（１９％）；治愈２５例（８１％）。结论十二指肠损伤的修复应根据损伤的部位、损伤的严重程度、腹腔污染和合并伤的情况作综合考虑，选择合理的手术方式，尽可能地减少术后并发症发生率和死亡率     

肝脂质代谢异常在兔胆道不全梗阻并感染致胆囊胆红素钙结石过程中的作用

目的　探讨肝脏脂质代谢异常在胆道不全梗阻并感染致兔胆囊胆红素钙结石过程中的作用。方法　 49只兔随机分为 3组 :结石A组 ( n =15 )和结石B组 ( n =2 2 )及正常对照组 (C组 ,n= 12 ) ,通过胆道不全梗阻并感染构建兔胆囊胆红素钙结石模型。检测以下项目 :( 1)血浆甘油三酯(TG ) ,磷脂 (PL ) ,总胆固醇 (TCh ) ,游离胆固醇 (FCh) ,高密度脂蛋白及其亚组分胆固醇 (HDL Ch ,HDL2 Ch及HDL3 Ch)的浓度 ;( 2 )胆汁FCh和甘氨酸胆酸 (GCA )及甘氨酸脱氧胆酸 (GDCA )的浓度。结果　 ( 1)与C组比较 ,A组及B组的血浆PL均明显升高 (P <0 .0 5 ,P <0 .0 1) ,A组血浆TG明显升高 (P <0 .0 5 ) ;( 2 ) 3组间血浆TCh及FCh差异无显著性 (P >0 .0 5 ) ,B组的血浆HDL Ch ,A组及B组的血浆HDL2 Ch均显著低于C组 (P <0 .0 1) ,而A组及B组HDL3 Ch则显著高于C组 (P<0 .0 1,P <0 .0 5 ) ;( 3 )B组胆汁GCA及A组和B组胆汁GDCA显著低于C组 (P <0 .0 5 ,P <0 .0 5 ,P <0 .0 1) ,但 3组间GCA /GDCA比值差异无显著性 (P >0 .0 5 ) ;( 4 )A组及B组胆汁中的FCh较C组显著升高 (P <0 .0 5 )。结论　兔胆道不全梗阻并感染可引起肝脏HDL合成减少与成熟障碍 ,造成胆固醇的转运及代谢异常 ,从而导致胆汁酸分泌减少 ,胆汁中胆固醇浓度升高。提     

胰腺素腺瘤和囊腺癌的诊治

目的 探讨胰腺囊性肿瘤的诊断和治疗。方法 对1978-1998年收治的均经手术和病理检查证实为胰腺囊性肿瘤的11例临床资料进行回顾性分析。结果 胰腺囊性肿瘤好发于中青年女性,临床表现为病程较长的上腹部肿物和胀痛。钡餐、B超、CT及ER-CP能协助诊断,本组11例中行胰十二指肠切除2例,胰体尾加脾切除6例,肿瘤单纯切除2例,囊肿-空肠袢式吻合1例,手术切除率为90.9%,术后1例死于腹内感染并峰主血症术后存活的10例均获随访（100%）。1例胰腺囊腺瘤手术后3个月死于心肌梗死,1例胰腺囊腺癌术后4年3个月死于癌转移,其余均健在,结论 凡中青年女性,上腹或左上腹出现较大肿块,且病程较长。结合B超和CT检查可对本病的诊断,胰腺囊腺瘤或囊腺癌,癌体虽较大,均有完整的包膜,而易于分离切除,首选手术方式为包括部分胰腺组织的全肿瘤切除术,疗效满意。