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Clinical Analysis of Diagnosis and Treatment of Acute Pancreatitis in Pregnancy

目的 探讨妊娠期并发急性胰腺炎(APIP)的病因、发病机理、临床特点及防治措施. 方法 对四川省宜宾市第二人民医院和四川大学华西医院1995年1月至2006年12月期间收治的72例APIP患者的临床资料进行回顾性分析. 结果 本组72例中,属轻型急性胰腺炎(MAP)者49例(68.06%),重症急性胰腺炎(SAP)者23例(31.94%); 有胆囊炎合并胆囊结石病史者43例(59.72%),伴高脂血症者21例(29.17%).采用非手术治疗56例,手术治疗16例,孕妇治愈66例(91.67%),死亡6例(8.33%),死因为多器官功能障碍综合征、急性呼吸窘迫综合征及严重复腔感染; 终止妊娠16例(均为32～38周妊娠),56例继续妊娠; 72例中双胎2例,胎儿死亡共15例(20.27%); 漏诊、误诊6例.结论 APIP的发生与胆结石和高脂血症有关,并于妊娠中晚期发病率高; 其临床表现复杂,易误诊,对孕妇及胎儿威胁极大; 把握该疾病的特点,提高对APIP的认识和警惕性,及时准确的诊断与"个体化"的治疗原则,适时终止妊娠,可以提高其治愈率,降低母婴死亡率.

Clinical Characteristics and Surgical Treatment of Thoracic Hemangioma

Abstract： Objective To investigate the clinicopathological characteristics, improve the accuracy of clinical diagnosis， and reduce postoperative complications of thoracic hemangioma. Methods Clinical records of 9 patients with thoracic hemangioma who underwent surgical resection in West China Hospital of Sichuan University from January 2006 to August 2012 were retrospectively analyzed. There were 2 males and 7 females with their average age of 47.9±19.3 （18-71）years. Six patients underwent thoracotomy， 1 patient underwent complete video-assisted thoracoscopic surgery （VATS）， 1 patient underwent video-assisted mini-thoracotomy， and 1 patient underwent staged operations which were performed by neurological surgeons and thoracic surgeons separately. Imaging characteristics, intraoperative gross tumor features, and pathological characteristics of resected hemangioma specimens were analyzed. Clinical outcomes of different surgical strategies for the treatment of hemangioma were compared. Results Nine patients with thoracic hemangioma were included in this study. Imaging studies showed the tumor as a round-shaped mass in 66.7% （6/9） of these patients and a lobulated mass in the remaining 33.3% （3/9） patients. Magnetic resonance imaging （MRI） assessment was helpful for preoperative diagnosis of hemangioma， with T2 weighted imaging tumor enhancement as the main MRI feature. Thoracic operation time was 106.3±60.1 （60-192） min， and intraoperative blood loss was 91.1±43.7 （30-150） ml. All the patients were followed up for 3-6 years except 1 patient who was followed up for 1 month. None of the patients had hemangioma-related death， recurrence or metastasis during follow-up. Conclusions Thoracic hemangiomas are usually benign entities and often locate in the mediastinum. Surgical strategies should be determined by the size and location of the tumor as well as the surgeon’s technique level. VATS has the advantages of being minimal invasive, causing less intraoperative blood loss and shorter length of hospital stay for the treatment of hemangioma. Resection of a dumbbell-type hemangioma may need cooperation between neurological and thoracic surgeons.

胸外科患者术后肺栓塞的诊断与治疗

目的　总结肺栓塞（pulmonary embolism，PE）患者的特点，提高胸外科患者术后并发症的诊断与治疗水平。　方法　回顾性分析上海交通大学附属胸科医院2007年6月至2008年10月收治术后肺栓塞患者22例的临床资料，其中中高危肺栓塞8例，男5例、女3例，平均年龄63.5 （55～76）岁，肺癌5例，食管癌1例，纵隔肿瘤1例，慢性炎性肉芽肿1例，均行溶栓治疗；低危肺栓塞14例，男 11例、女 3例，平均年龄61.7 （55～75）岁，肺癌9例，食管癌5例，均行抗凝治疗。　结果　中高危患者中7例症状在24 h内明显改善，均痊愈出院，随访3个月无复发；1例24 h内好转，48 h后出现严重的肺部感染，并于5 d后死亡。14例低危患者均于治疗3～5 d后氧合改善，随访3个月无复发。　结论　胸外科患者术后肺栓塞的诊断仍较为困难；溶栓治疗是中高危肺栓塞患者的首选治疗方案；深静脉血栓（deep vein thrombosis，DVT）形成是术后肺栓塞的高危因素，应高度重视。

急性创伤性膈肌破裂的早期诊断与治疗

目的　总结急性创伤性膈肌破裂的早期诊治经验。 方法　回顾性分析1996年8月至2012年8月内江市第一人民医院收治的37例急性创伤性膈肌破裂行外科手术治疗患者的临床资料，男30例，女7例；年龄15～43岁。左侧膈肌破裂26例，右侧膈肌破裂11例。直接暴力损伤16例，间接暴力损伤21例。交通伤17例，刀刺伤13例，高处坠落伤4例，枪弹伤2例，钢筋穿透伤1例。对其发病原因、合并伤、诊断及手术方式进行分析。 结果　术前确诊26例，术中探查确诊11例。 治愈33例，死亡4例，病死率10.81%。4例均合并有多器官损伤，死亡原因：失血性休克、多器官功能衰竭。随访25例，随访时间4个月至10年，患者生活质量良好。 结论　早期诊断和积极手术治疗是救治创伤性膈肌破裂的关键。动态观察伤员病情变化，及时行胸部X线片或CT检查是早期诊断膈肌破裂的主要措施，一旦确诊膈肌破裂均应行外科手术治疗。

纵隔间叶性软骨肉瘤自发性破裂出血一例

Risk Factor Analysis and Establishment of a Mathematical Prediction Model to Evaluate the Probability of　Malignancy in Patients with Small Pulmonary Nodules

Objective To analyze risk factors of malignancy in patients with small pulmonary nodules （diameter ≤2 cm） using univariate analysis and multivariate logistic regression，and establish a mathematical prediction model to estimatethe probability of malignancy. Methods Clinical data of 147 patients with small pulmonary nodules who underwentsurgical resection with definite postoperative pathological diagnosis from January 2005 to September 2012 in the 161st Central Hospital of PLA were retrospectively analyzed. There were 84 male and 63 female patients with their age of 31-78（56.2±10.1） years. Univariate analysis using Chi-square test or t test was performed to analyze risk factors including patientage，gender，symptoms，history and quantity of smoking，history of heavy drinking，history of tumor，tumor site，diameter，lobulation，spiculation，pleural indentation，ground-glass opacity，cavity，enlarged hilar and mediastinal lymph nodes.Independent predictors of malignancy were screened with multivariate logistic regression analysis. A mathematical predictionmodel was built to estimate the probability of malignancy and then examined. Results Univariate analysis showed that there was statistical difference in patient age（t=7.146，P＜0.001），heavy smoking history（χ2=6.169，P=0.013），nodule diameter（t=3.375，P=0.001），spiculation（χ2=5.609，P=0.018），lobulation（χ2=5.675，P=0.017），and pleural indentation（χ2=12.994，P＜0.001）between benign and malignant small pulmonary nodule groups. Multivariate logistic regression analysis showed that patient age （OR=1.110，P=0.000），nodule diameter （OR=2.050，P=0.029），lobulation （OR=1.672，P=0.045），spiculation（OR=2.054，P=0.032） and pleural indentation（OR=4.090，P=0.024）were independent predictors of malignancy in patients with small pulmonary nodules （P＜0.05） . The mathematical prediction model to estimate the probability of malignancy was：Logit （P） =ez/ （1 ＋ ez），Z=-6.657 ＋ （0.104×age） ＋ （0.718×diameter） ＋ （0.720×spiculation） ＋（0.514×lobulation） ＋ （1.409×pleural indentation），and e was natural logarithm. Both Hosmer-Lemeshow test （χ2=1.802，P=0.986） and maximum likelihood ratio test （Cox-Snell R2=0.310，Nagelkerke R2=0.443） showed satisfactory goodness of fit. The diagnostic accuracy was 85.71%，sensitivity was 87.50%，specificity was 81.40%，positive predictive value was 91.92%，and negative predictive value was 72.92% when the cut-off value was 0.58. Conclusions Patient age，nodule diameter，spiculation，lobulation and pleural indentation are independent predictors of malignancy in patients with small pulmonary nodules. The mathematical prediction model can accurately estimate the probability of malignancy for patients with small pulmonary nodules.

钝性主动脉损伤的治疗

Pulse Oximetry Screening for Congenital Heart Disease in Asymptomatic Children：A Systematic Review and Meta-Analysis

Objective To investigate the accuracy of pulse oximetry screening for congenital heart disease （CHD） in asymptomatic children. Methods We electronically searched VIP database，CNKI database，CBMdisc，Wanfandatabase，PubMed，Excerpta Medica Database （EMBASE） and the Cochrane Library from the time of database establishment to February 2013 to identify literatures regarding pulse oximetry screening for CHD in asymptomatic children. Data extraction was performed by two researchers independently. Quality of the included literatures was evaluated with qualityassessment for diagnostic accuracy studies （QUADAS）. Meta-analysis was performed using RevMan 5.1.1. ResultsTwelve studies were included in this study with a total of 137 582 newborns. Fourteen QUADAS criteria were fulfilled by all the 12 studies. Among the 12 studies，only the studies with positive test results received verification using a gold standardtest，and the execution of the gold standard test was described in sufficient detail only in 1 study. There were 10 studies in which the gold standard test results were interpreted with knowledge of the diagnostic test results. Meta-analysis showed that pooled sensitivity and specificity of pulse oximetry test for the diagnosis of CHD were 22% with 95% CI （19%，25%） and 99% （99%，99%） respectively. Pooled positive likelihood ratio （LR＋） and negative likelihood ratio （LR-） were 157.30 with 95% CI （11.80，2 096.95） and 0.61 with 95% CI （0.46，0.82） respectively. Pooled diagnostic odds ratio was 398.25 （34.5，4 596.81）. The area under summary receiver operating characteristic （SROC） curve was 0.809，and Q index was 0.744. Conclusion Pulse oximetry is a lowly sensitive and highly specific diagnostic method for children with CHD，and is helpful for early diagnosis of CHD.

Diagnosis and Management of Concealed Intrathoracic Anastomotic Leak of Esophagus

Abstract：　Objective　To investigate diagnosis and treatment of concealed intrathoracic anastomotic leak of the esophagus.　Methods　We retrospectively analyzed the clinical data of 32 patients who presented with unexplained sepsis （temperature＞38 ℃ and elevated white blood cell count） after esophagectomy and intrathoracic anastomosis for esophageal　carcinoma or gastric cardia carcinoma in Affiliated Hospital, Medical College of Qingdao University from January 2006 to December 2010. All the patients underwent oral water-soluble contrast esophagogram and oral water-soluble contrast computerized tomography of the chest. None of the patients had any sign of contrast leak in these diagnostic examinations, but their chest computerized tomography all showed peri-anastomotic bubble and encapsulated effusion. Fifteen patients were treated as concealed intrathoracic anastomotic leak of the esophagus, including fasting, broad spectrum antibiotic treatment, prolonged gastrointestinal decompression and enteral nutrition via naso-intestinal feeding tube. The other 17 patients were not treated as anastomotic leak of the esophagus and only received broad spectrum antibiotic treatment. Results None of the 15 patients who were treated as concealed intrathoracic anastomotic leak finally developed anastomotic leak proved by oral water-soluble contrast esophagogram and computerized tomography of the chest （0%, 0/15）. Among the 17 patients　who were not treated as anastomotic leak, fourteen patients developed anastomotic leak later （82.4%, 14/17）, 2 patients died of aorto-esophageal fistula and 3 patients died of multiple organ dysfunction syndrome.　Conclusion　Peri-anastomotic bubble and irregular encapsulated effusion in oral water-soluble contrast esophagogram and computerized tomography of the chest should be considered as specific signs of concealed intrathoracic anastomotic leak of esophagus after esophagectomy and intrathoracic anastomosis. Patients with such signs should be treated as anastomotic leak.

下行性坏死性纵隔炎的诊断与治疗

目的　探讨下行性坏死性纵隔炎（DNM）的诊断和治疗方法。　方法　回顾性分析1988年1月至2009年12月青岛大学医学院附属医院收治11例DNM患者的临床资料，其中男8例，女3例；年龄25～71 （55±3）岁。早期收治的患者外科治疗采用颈部清创、引流，或经颈部纵隔引流；后期收治的患者采用颈、胸部同期清创、引流及术后冲洗。　结果　行单纯颈部清创、引流及经颈部纵隔引流的7例患者中死亡4例，均死于严重纵隔感染导致多器官功能衰竭，3例生存患者均为感染尚未侵犯下纵隔和胸腔；行颈、胸部清创、引流和冲洗的4例患者全部治愈。随访7例，随访时间3个月，患者恢复良好。　结论　DNM病情凶险，一旦发病迅速进展为脓毒血症，甚至死亡。重视口咽部和颈部感染患者的胸部症状、体征变化，及时行胸部CT检查是尽早诊断DNM的关键。尽早进行颈、胸部彻底清创、充分引流及有效冲洗是治疗DNM成功的关键。