中医外治技术联合快速康复外科理念对肝胆外科术后患者的临床疗效

目的:探讨中医外治技术联合快速康复外科(ERAS)理念促进肝胆外科患者康复的临床疗效。方法:选择于2018 年8 月—2020 年10 月在我科行腹腔镜手术的患者308 例,随机分为外治组156 例,对照组152 例。对照组行腹腔镜手术+ERAS 理念,外治组在前者基础上加用中医外治技术,比较两组患者在术后肠鸣音恢复、肛门首次排气及排便时间、疼痛评分、住院天数、相关并发症等方面的差异。结果:外治组术后肠鸣音恢复、肛门首次排气排便时间均短于对照组(P <0.05),术后疼痛评分低于对照组(P <0.05),行肝脏手术及胰腺手术患者的住院时间均短于对照组(P <0.05)。但两组相关并发症发生率差异无统计学意义(P <0.05)。结论:中医外治技术联合ERAS 理念在肝胆外科围手术期的应用能减轻术后患者的疼痛,促进胃肠道功能的恢复,缩短住院时间,值得临床推广应用。     

先天性胆总管囊肿术后十二指肠胃返流的动态观察

目的：利用不同的二种动态检测方法研究不同术式的先天性胆总管囊肿术后病儿十二指肠胃返流的特点。方法：采用２４ｈ胃食管双ｐＨ动态检测结合持续性核素静脉注射肝胆闪烁显像技术,检测２０例不同术式的先天性胆总管囊肿术后病儿及１７名正常儿十二指肠胃返流（ｄｕｏｄｅｎｏｇａｓｔｒｉｃ ｒｅｆｌｕｘ,ＤＧＲ）出现情况。结果：二种术式中囊肿切除,肝总管十二指肠吻合组（Ｈ－Ｄ吻合组）ＤＧＲ发生率高于囊肿切除,肝总管空     

New hepatocellular diffusion model for analysis of hepatobiliary transport processes of drugs

A new hepatocellular diffusion model was developed to kinetically evaluate the hepatobiliary transport processes of drugs in the perfusion system, based on the physiological structure of the liver. Since the equations describing the hepatocellular diffusion phenomena were derived as image forms in the Laplace domain, the fast inverse Laplace transform (FILT) was adopted to manipulate the image equations. Cefixime and cefpiramide were selected as model drugs. The concentrations in the perfusate and the excreted amounts into the bile were simultaneously measured at appropriate intervals after the rapid administration of each drug into the portal vein. The hepatocellular diffusion model was fitted to the biliary excretion profiles from rat livers, by means of a nonlinear least squares program, MULTI(FILT). According to this model, the hepatobiliary transport process of drug is kinetically separated into three steps, that is, the diffusion into and through the hepatocytes, the transfer from the hepatocytes into the bile canaliculi, and the movement through the bile canaliculi to the outlet of bile duct. These steps are characterized by the diffusion rate constant through hepatocytes (k_dif), the permeability rate constant into the bile canaliculi (k_bmc) and the transit time through the bile canaliculi to the outlet of bile duct ( ), respectively. It was demonstrated that k_dif of cefixime (0.023min¹) was significantly smaller than that of cefpiramide (0.044 min¹), while the differences in k_bmc and were not obvious between cefixime and cefpiramide. k_bmc and of both drugs were about 1.2 min¹ and about 1.0 min, respectively. These parameters were correlated to the excretion ratio into the bile (F_bile) and the mean transit time from the sinusoid through the hepatocytes to the outlet of bile duct ( ).     

Evaluation of esophageal bile reflux after total gastrectomy by gastrointestinal and hepatobiliary dual scintigraphy

Conducting the qualitative evaluation of reconstruction methods is difficult because of their complexity. The aim of the present study was to compare esophageal bile and food reflux by performing gastrointestinal and hepatobiliary dual scintigraphy (GHDS) after various methods of reconstruction following total gastrectomy. Of 17 patients studied, 4 had undergone Roux-en-Y anastomoses (R-Y); 6, jejunal pouch-Y anastomoses (P-Y); and 7, jejunal pouch interposition (P-I). GHDS was performed 1 year after surgery using¹¹¹In-diethylene triamine pentaacetic acid administered orally, and^99mTc-pyridoxyl-5-methyl tryptophan administered intravenously. Imaging data from a gamma camera were stored in and processed by a data analyzer. Three patients who had undergone R-Y and one who had undergone P-I complained of heartburn, while one who had undergone R-Y, two who had undergone P-Y, and three who had undergone P-I complained of a feeling of fullness. Esophageal bile reflux was confirmed by GHDS in four of the patients who had undergone R-Y, one who had undergone P-Y, and four who had undergone P-I. Moreover, GHDS demonstrated food retention in two patients who had undergone R-Y, five who had undergone P-Y, and four who had undergone P-I. Weight loss was closely related to the esophageal reflux of bile or food which can be accurately detected by GHDS. Despite the absence of heartburn, patients diagnosed as having bile reflux by GHDS showed poor recovery of body weight.     

A case of recurrent cholangitis after bile duct injury during laparoscopic cholecystectomy: Value of scintigraphy with Tc-99m GSA and hepatobiliary scintigraphy for indication of lobectomy

A 39-year-old woman with acute cholecystitis and gallstones underwent laparoscopic cholecystectomy. She suffered from recurrent episodes of cholangitis due to injury of the major bile ducts during laparoscopic cholecystectomy. Hepatobiliary scintigraphy with Tc-99m Sn-N-pyridoxyl-5-methyltryptophan was performed. Although normal bile excretion was found from the left hepatic duct to the percutaneous transhepatic biliary drainage (PTBD) tube, excretion from the right hepatic lobe was prolonged. Scintigraphy with Tc-99m diethylenetriaminepentaacetic acid-galactosyl human serum albumin demonstrated atrophy of the right hepatic lobe and enlargement of the left hepatic lobe. Cholangiography via the PTBD tube revealed complete obstruction of the left hepatico-jejunal anastomosis and could not enhance the right intrahepatic bile duct. A right hepatic lobectomy was performed because of the atrophy, glissonitis and the absence of an appropriate bile duct for reconstruction. Postoperatively she was active and exhibited no evidence of recurrent cholangitis.     

急诊Ⅰ期手术和控制性手术治疗肝胆外科损伤的临床效果比较

目的比较急诊Ⅰ期手术和控制性手术治疗肝胆外科损伤的临床效果。方法以2017年5月至2018年5月我院接收的68例肝胆外科损伤患者作为研究对象,根据治疗方法的不同将其分为参照组和控制性手术组,各34例。参照组采用常规急诊Ⅰ期手术治疗,控制性手术组采用控制性手术治疗。观察两组治疗前及治疗1周后的pH值、体温、血浆凝血酶原时间(PT)、手术时间、住院时间、治疗1周后的并发症发生情况及治疗2周后的死亡率。结果治疗1周后,两组pH值、体温明显高于治疗前,PT明显短于治疗前,且控制性手术组优于参照组(P<0.05)。控制性手术组的手术时间明显短于参照组,住院时间明显长于参照组(P<0.05)。治疗1周后,控制性手术组的并发症总发生率明显低于参照组(P<0.05)。治疗2周后,控制性手术组的死亡率明显低于参照组(P<0.05)。结论相比于常规急诊Ⅰ期手术,肝胆外科损伤患者通过控制性手术治疗的临床价值显著,值得在临床上推广应用。     

Concentrations of Gd–BOPTA in cholestatic fatty rat livers: role of transport functions through membrane proteins

Gd–BOPTA (gadobenate dimeglumine) is a magnetic resonance (MR) contrast agent that, after i.v. administration, distributes within the extracellular space, enters rat hepatocytes through the sinusoidal transporters organic anion transporting peptides (Oatps) and is excreted unchanged into bile through the multidrug resistance‐associated protein 2 (Mrp2). It is unclear how the hepatobiliary contrast agent would accumulate in cholestatic fatty livers from obese rats with bile flow impairment. Indeed, the expression of both Oatps and Mrp2 transporters is decreased in cholestatic hepatocytes. To assess this question, we measured on‐line the hepatic concentrations of ¹⁵³Gd–BOPTA with a gamma probe placed over perfused rat livers. During the perfusion of ¹⁵³Gd–BOPTA, we obtained a similar maximal hepatic concentration in normal and fatty livers despite the decreased expression and function of membrane transporters in fatty livers. By pharmacokinetic modeling and mathematical simulations, we show how changes of transport into and out of hepatocytes modify the concentrations of ¹⁵³Gd–BOPTA within hepatocytes. Mathematical simulations help to understand how each parameter (entry into hepatocytes, bile excretion, or efflux back to sinusoids) interferes with the hepatic concentrations. The hepatic concentrations of ¹⁵³Gd–BOPTA within hepatocytes rely on the entry into hepatocytes through the sinusoidal membrane and on two paths of exit, the efflux back to sinusoids and the elimination into bile. Understanding how ¹⁵³Gd–BOPTA accumulates in hepatocytes is then complex. However, such understanding is important to analyze liver imaging with hepatobiliary contrast agents in cholestatic fatty livers. Copyright © 2012 John Wiley & Sons, Ltd.     

Malignant liver tumours

The liver is commonly affected by both primary and metastatic malignancy. The surgical management of liver tumours must be carefully considered to ensure good oncological outcomes and to avoid serious complications of liver surgery. Primary tumours of the liver include hepatocellular carcinoma and cholangiocarcinoma. The resectability of primary liver tumours is dependent on thorough preoperative staging. Primary liver tumours pose a major global health burden, particularly in Asia and in countries affected by epidemic viral hepatitis. Metastatic disease commonly affects the liver and often hepatic resection in such circumstances provides the best chance of prolonging life and disease free survival. This review discusses recent advances, in addition to the epidemiology, diagnosis and management of both primary and secondary liver tumours.