腹腔镜胆囊切除术并发症相关因素分析

目的 探讨导致腹腔镜胆囊切除术(lapawscopic cholecystectomy，LC)并发症发生的危险因素。方法 回顾分析我院自。1991年3月—2003年6月间11974例腹腔镜胆囊切除术患中发生并发症的临床资料，采用x^2检验和Logistic回归方法对可能导致腹腔镜胆囊切除术并发症发生的15个临床病理相关因素，进行多因素回归分析。结果 本组资料LC术后并发症的发生率为1．896％(227／11974)，中转手术率为2．386％(286/11974)，其中因发生并发症而中转开腹65例，占22．727％(65／286)。Logistic回归分析显示，按作用强度，Calot三角粘连、病期、手术经验、胆囊壁厚度(B超)、胆囊与周围粘连依次为导致腹腔镜胆囊切除术并发症发生的主要危险因素。结论 加强医师的腹腔镜技术培训，正确掌握LC相关危险因素是提高LC手术成功率的关键，正确掌握中转开腹的时机及开腹后处理方法，是降低LC手术严重并发症发生和死亡的有效措施。     

腹腔镜胆囊切除术并发症相关因素分析

目的 探讨导致腹腔镜胆囊切除术(laparoscopic cholecystectomy,LC)并发症发生的危险因素。方法 回顾分析我院自1991年3月-2003年6月间11974例腹腔镜胆囊切除术患者中发生并发症的临床资料,采用X~2检验和Logistic回归方法对可能导致腹腔镜胆囊切除术并发症发生的15个临床病理相关因素,进行多因素回归分析。结果 本组资料LC术后并发症的发生率为1.896％(227/11 974),中转手术率为2.386％(286/11 974),其中因发生并发症而中转开腹65例,占22.727％(65/286)。Logistic回归分析显示,按作用强度,Calot三角粘连、病期、手术经验、胆囊壁厚度(B超)、胆囊与周围粘连依次为导致腹腔镜胆囊切除术并发症发生的主要危险因素。结论 加强医师的腹腔镜技术培训,正确掌握LC相关危险因素是提高LC手术成功率的关键,正确掌握中转开腹的时机及开腹后处理方法,是降低LC手术严重并发症发生和死亡的有效措施。     

腹腔镜胆囊切除术致严重并发症的分布及危险因素分析—单中心71238例临床资料总结

目的探讨腹腔镜胆囊切除术(LC)导致严重并发症的分布及相关危险因素。方法回顾性分析1992年10月～2011年07月71238例腹腔镜胆囊切除术并发症的临床资料,采用χ2检验和Logistic回归方法对可能导致LC并发症的16个临床相关因素进行统计学分析。结果 LC术后严重并发症的发生率为0.37%(262/71238),其中因发生并发症而中转开腹173例,占66.1%(173/262)。Logistic回归分析显示:Calot三角粘连、解剖变异、病期、胆囊壁厚度、胆囊萎缩为导致LC并发症发生的主要危险因素。结论加强医师的腹腔镜技术培训,严格掌握LC适应证,正确掌握中转开腹的时机是降低LC手术严重并发症发生的有效措施。     

The risk factors of distribution and serious complications induced by laparoscopic cholecystectomy in a single center: an analysis of 71238 cases

目的 探讨腹腔镜胆囊切除术(LC)导致严重并发症的分布及相关危险因素.方法 回顾性分析1992年10月-2011年07月71238例腹腔镜胆囊切除术并发症的临床资料,采用x2检验和Logistic回归方法对可能导致LC并发症的16个临床相关因素进行统计学分析.结果 LC术后严重并发症的发生率为0.37％( 262/71238),其中因发生并发症而中转开腹173例,占66.1％(173/262).Logistic回归分析显示:Calot三角粘连、解剖变异、病期、胆囊壁厚度、胆囊萎缩为导致LC并发症发生的主要危险因素.结论 加强医师的腹腔镜技术培训,严格掌握LC适应证,正确掌握中转开腹的时机是降低LC手术严重并发症发生的有效措施.     

腹腔镜胆囊切除术中转开腹危险因素的分析

目的分析腹腔镜胆囊切除术(LC)中转开腹的危险因素,为在保证安全前提下,降低中转开腹率提供参考。方法回顾分析328例LC患者的临床资料,采用Logistic回归分析方法,分析LC中转开腹的危险因素。结果 328例LC患者中转开腹26例,占7.93%,主要原因是Calot三角解剖不清(12/26,46.12%),腹腔粘连(9/26,34.62%)。墨菲氏征阳性、胆囊壁厚≥3mm、近6个月发作频数≥2次和黄疸为中转开腹的危险因素。结论对存在危险因素的患者,应术前做好中转开腹和适时选择开腹手术的准备。     

36例腹腔镜胆囊切除术中转开腹原因分析

分析腹腔镜胆囊切除术(LC)中转开腹的原因。回顾性分析2011年10月—2015年1月1128例急症LC术和中转开腹36例患者临床资料,对中转开腹的因素进行单因素和Logistic多因素回归分析。结果显示,年龄、胆囊炎发作时间、上腹部手术史、合并糖尿病、BMI、胆囊壁厚度、手术出血量、手术时间、急性发病次数、并发症、术前白细胞计数、总胆红素水平、谷丙转氨酶水平均为LC术中转开腹的危险因素,Logistic回归分析年龄、胆囊壁厚度、合并糖尿病、胆囊炎发作时间为中转开腹的独立危险因素。结果表明,导致腹腔镜胆囊切除术中转开腹的危险因素包括年龄、胆囊壁厚度、胆囊炎发作时间、合并糖尿病等。     

腹腔镜胆囊切除术中转开腹的的危险因素分析及防范

目的：分析腹腔镜胆囊切除术中转开腹手术的潜在危险因素并探讨其防范措施。
方法：回顾性分析收治的786例行LC患者的临床资料,并进行Logistic回归分析。
结果：786例LC手术中转开腹50例,中转率为6.4%。体质量、上腹部手术史、急性胆囊炎次数（＞5次）、胆囊壁厚度是中转开腹的独立高危因素。
结论：LC中转开腹手术的潜在危险因素较多,评估其危险因素有利于适时中转开腹。

     

腹腔镜胆囊切除术中转开腹的危险因素分析

目的:分析腹腔镜胆囊切除术中转开腹的原因及相关危险因素,为外科医生的临床决策提供参考。方法:回顾分析3 476例腹腔镜胆囊切除术患者的临床资料,采用单因素分析及多因素logistic回归分析,探讨影响中转开腹的危险因素,并用SPSS 13.0绘制历年中转开腹率趋势图。结果:3 476例患者中,163例中转开腹,中转开腹率为4.7%;中转开腹组与腹腔镜组手术时间、术中出血量、术后住院时间、术后排气时间差异有统计学意义(P<0.05);胆囊粘连严重、胆囊三角处理困难是中转开腹的主要原因,占所有因素的57.1%;单因素分析结果显示:肥胖、手术经验、腹部手术史、胆囊炎反复发作史、胆囊壁厚度、WBC计数与腹腔镜胆囊切除术中转开腹相关(P<0.05);多因素分析结果显示:腹部手术史、肥胖、胆囊炎反复发作史、手术经验、胆囊壁厚度是影响腹腔镜胆囊切除手术中转开腹的独立危险因素(P<0.05)。结论:术前正确评估腹腔镜胆囊切除术中转开腹的相关危险因素,可为外科医生术中决策提供一定的参考,并可减少手术并发症。     

急性胆囊炎术前超声征象与腹腔镜胆囊切除术转开腹的关系

目的：探讨急性胆囊炎术前腹部超声检查征象与腹腔镜胆囊切除术（laparoscopic cholecystectomy, LC）中转开腹的关系。
方法：对226例急性胆囊炎LC患者术前行腹部超声检查,记录胆囊容积,胆囊壁厚度,胆囊窝有无积液,胆囊颈管是否有结石嵌顿,胆囊与周围粘连,胆囊三角粘连情况。分析超声显像与LC转开腹的关系。
结果：208例成功完成LC,18例中转开腹。单因素分析显示超声检查胆囊容积增大,胆囊壁增厚,胆囊颈管结石嵌顿,胆囊颈粘连是中转开腹的危险因素（P＜0.05）。多因素回归分析显示胆囊壁增厚和胆囊颈粘连是影响腹腔镜中转开腹率的独立危险因素。
结论：术前超声检查预测急性胆囊炎LC转开腹简便易行,对急性胆囊炎行腹腔镜手术适应证的选择有重要指导意义。

     

腹腔镜胆囊切除术立即中转开腹37例分析

20 0 2年10月～2 0 0 3年11月,我院共行腹腔镜胆囊切除术(LC)手术114 6例,术中立即中转开腹3 7例,现总结如下。临床资料本组中转病例3 7例,中转率3 .2 % (3 7/114 6)。男2 3例,女14例,年龄3 0～82岁。其中因急性炎症导致三角区粘连,解剖不清中转2 2例,术中B超发现胆总管结石9例(误诊1例)。术中出血2例(胆囊动脉出血1例,胆囊床撕裂出血1例) ,慢性胆囊炎、胆囊与横结肠粘连1例,怀疑胆囊癌1例。术中胆漏2例。所有病例因及时中转开腹处理,均无严重并发症发生。术中胆漏2例,其中1例开腹后发现胆囊壶腹与胆管粘连,LC分离胆囊壶腹时致胆管撕裂漏…     

Is the recovery profile of mivacurium independent of the rate of decay of its plasma concentration in patients with normal plasma cholinesterase activity?

Background: The duration of action of muscle relaxants is poorly correlated to the rate of decay of their plasma concentration. The plasma concentration of mivacurium may rapidly decrease below its active concentration because of the extensive hydrolysis of mivacurium. By inflating a tourniquet on one upper limb for 3 min after the administration of atracurium, mivacurium or vecuronium, we studied the influence of the initial decline of their plasma concentration on their effect. Methods: In 50 patients anaesthetised with thiopental, isoflurane and fentanyl, the effect of bolus doses of 0.15 or 0.25 mg . kg^?1 mivacurium (MIV 15, MIV 25), 0.3 or 0.5 mg . kg^?1 atracurium (ATR 30, ATR 50) and 0.06 or 0.1 mg . kg^?1 vecuronium (VEC 06, VEC 10) were measured on both arms (evoked response of the adductor pollicis to train-of-four stimulation every 12 s), a tourniquet being applied on one arm just before and during 3 min after the muscle relaxant bolus. Results: Tourniquet inflation of 3 min almost abolished the neuromuscular effect of mivacurium. In the vecuronium groups and in the ATR 50 group, tourniquet inflation did not modify the maximum degree of depression of the twitch response. Also, the duration of action of vecuronium was unaffected by the tourniquet. In the ATR 30 group, times to return of the twitch response to 25% (duration 25%) and 75% (duration 75%) of control response were significantly shorter in the cuffed arm, 23 min vs 27 min, and 41 min vs 45 min, respectively. In the ATR 50 group, only duration 25% was significantly shorter in the cuffed arm (41 min vs 45 min). Conclusion: The results suggest that the rate of decline of the plasma concentration of mivacurium is so rapid, that a very low and almost clinically ineffective concentration is present as soon as 3 min after its administration. The results also indicate that the recovery from a mivacurium-induced neuromuscular blockade is not influenced by the rate of decay of its plasma concentration in patients with genotypically normal plasma cholinesterase.     

Membranes in Artificial Organs

Abstract: Membrane processes play a pivotal and enabling role in modern replacement therapy for acute and chronic organ failure and in the management of immunologic diseases. In fact, virtually all contemporary extracorporeal blood purification methods employ membrane devices, and the next generation of artificial organs and tissue engineering therapies are almost certain to be similarly grounded in membrane technology. In this short essay, we comment on the similarities and differences among synthetic membranes and their natural counterparts and also provide a critical overview of the demographics and technology of hemodialysis, hemofiltration, apheresis, oxygenation, and emerging membrane technologies and applications.     

Dilemma of Membrane Biocompatibility and Reuse

Abstract: Numerous articles have been published on the multiple use of dialyzers and on the effect of different reprocessing chemicals and techniques on the dialyzer biocompatibility and performance. The results often appear contradictory, especially those comparing standard biocompatibility parameters. Despite this confusion, a discerning review of the published works allows certain limited conclusions to be drawn. Reprocessing of used hemodialyzers changes the biocompatibility profile of a dialyzer as defined by the parameters complement activation. leukopenia, and cytokine release. The effect of reprocessing depends on the chemicals and reprocessing technique applied and also on the type of membrane polymer being subjected to the reprocessing procedure. Reports of pyrogenic reactions indicate that the flux of the membrane also influences how suitable it is for safe reuse. An increased risk of allergic and pyrogenic reactions appears to be associated with dialyzer reuse. Furthermore, there has been a lack of investigations into the immunologic effect of the layer of adsorbed and chemically altered proteins that remains on the inner surface of reprocessed dialyzers. We conclude that the clinical benefit of dialyzer reuse cannot be generally accepted from a biocompatibility point of view.     

The analgesic effect of racemic ketamine in patients with chronic ischemic pain due to lower extremity arteriosclerosis obliterans

Background : Ketamine in sub-dissociative doses has been shown to have analgesic and phantom-Limb pain, where conventional treatment has often failed. Chronic ischemic pain due to lower extremity arteriosclerosis obliterans often responds poorly to analgesics, and the pain-generating mechanisms are not well understood.
Methods : Eight patients with rest pain in the lower extremity due to arteriosclerosis obliterans were given sub-dissociative doses of 0.15, 0.30, or 0.45 mg/kg racemic ketamine and morphine 10 mg as a 5-min infusion on four separate days in a cross-over, double-blind, randomised protocol. Plasma levels of (S)- and (R)-ketamine and their nor-metabolites were analysed with an enantioselective high-performance liquid chromatography (HPLC) method. Pain levels were evaluated with a visual analogue scale (VAS).
Results : Individual pain levels were highly variable during and after all the infusions but the pooled pain levels showed a dose-dependent analgesic effect of ketamine with a transient but complete pain relief in all patients at the highest dose (0.45 mg/ kg). Side-effects, mainly disturbed cognition and perception, were pronounced and dose-dependent. Morphine 10 mg had an analgesic peak at 20 min and 5/8 patients had complete pain relief. The remaining 3 patients also had high baseline pain scores, indicating a higher analgesic potency for the 0.30 and 0.45 mg/ kg ketamine doses than for morphine 10 mg.
Conclusion : We have demonstrated a potent dose-dependent analgesic effect of racemic ketamine in clinical ischemic pain. Due to a narrow therapeutic window, this analgesic effect is probably best utilised in combination with other analgesics.     

Intravenous endotoxin does not increase tissue extravasation of albumin in rats

Background : It is unclear whether activation of the inducible nitric oxide synthase (iNOS) increases or decreases the extravasation of plasma.
Methods : Chloralose anaesthetised male Wistar rats received E. coli lipopolysacharide (LPS), 3 mg kg^-1 i.v., or the corresponding volume of saline, 3 or 5 h before the end of the experiment. Mean arterial pressure (MAP) and heart rate (HR) were recorded. Tissue clearance of radio-labelled albumin, during the last 2 h of each experiment, was determined by a double-isotope method. In separate animals, the serum concentration of nitrite and nitrate was determined, 5 h after LPS or the solvent.
Main Results : LPS initially decreased MAP and lastingly increased HR. In the 3-h LPS animals (n=8), tissue plasma clearance was lower in the heart and calf muscle and increased only in diaphragm, compared to corresponding control animals (n=8). In the 5-h LPS rats, clearance was lowered (n=8) in the entire gastrointestinal tract and in testes, compared to controls (n=8). The serum nitrite/nitrate concentration was higher in animals given LPS (n=6) than in controls (n=6).
Conclusion : After LPS, tissue clearance of albumin was not increased in any major tissue, in spite of increased serum levels of NO end products. Apparently, after activation of iNOS, the augmented release of NO is not necessarily associated with increased albumin extravasation.     

Adrenaline markedly improves thoracic epidural analgesia produced by a low-dose infusion of bupivacaine, fentanyl and adrenaline after major surgery: A randomised, double-blind, cross-over study with and without adrenaline

Background: Basic pharmacological research indicates that there are synergistic antinociceptive effects at the spinal cord level between adrenaline, fentanyl and bupivacaine. Our clinical experience with such a mixture in a thoracic epidural infusion after major surgery confirms this. The objectives of the present study were to evaluate the effects on postoperative pain intensity, pain relief and side effects when removing adrenaline from this triple epidural mixture. Methods: A prospective, randomised, double-blind, cross-over study was carried out in 24 patients after major thoracic or abdominal surgery. Patients with only mild pain when coughing during a titrated thoracic epidural infusion of about 10 ml · h^?1 of bupivacaine 1 mg · ml^?1, fentanyl 2 μg · ml^?1, and adrenaline 2 μg · ml^?1 were included. On the 1^st and 2^nd postoperative days each patient was given a double-blind epidural infusion, at the same rate, with or without adrenaline. The effect was observed for 4 h or until pain when coughing became unacceptable in spite of a rescue analgesic procedure. Rescue analgesia consisted of up to two epidural bolus injections per hour and i.v. morphine if necessary. All patients received rectal paracetamol 1 g, every 8 h. Fentanyl serum concentrations were measured with a radioimmunoassay technique at the start and end of each study period. Main outcome measures were extent of sensory blockade and pain intensity at rest and when coughing, evaluated by a visual analogue scale, a verbal categorical rating scale, the Prince Henry Hospital pain score, and an overall quality of pain relief score. Results: The number of hypaesthetic dermatomal segments decreased (P <0.001) and pain intensity at rest and when coughing increased (P <0.001) when adrenaline was omitted from the triple epidural mixture. This change started within the first hour after removing adrenaline. After 3 h pain intensity when coughing had increased to unacceptable levels in spite of rescue analgesia (epidural bolus injections and i.v. morphine). Within 15–20 min after restarting the triple epidural mixture with adrenaline, pain intensity was again reduced to mild pain when coughing. Serum concentration of fentanyl doubled from 0.22 to 0.45 ng · ml^?1 (P <0.01), and there was more sedation during the period without adrenaline. Conclusions: Adrenaline increases sensory block and improves the pain-relieving effect of a mixture of bupivacaine and fentanyl infused epidurally at a thoracic level after major thoracic or abdominal surgery. Serum fentanyl concentrations doubled and sedation increased when adrenaline was removed from the epidural infusion, indicating more rapid vascular absorption and systemic effects of fentanyl.     

Utilisation des médicaments prokinétiques en réanimation : indications et limites ?

Enteral feeding is often limited by gastric and intestinal motility disturbances in critically ill patients, particularly in patients with shock. So, promotility agents are frequently used to improve tolerance to enteral nutrition. This review summaries the pathophysiology, presents the available pharmacological strategies, the clinical data, the counter-indications and the principal limits. The clinical data are poor. No study demonstrates a positive effect on clinical outcomes. Metoclopramide and erythromycin seems to be the more effective. Considering the risk of antibiotic resistance, the first line use of erythromycin should be avoided in favor of metoclopramide.     

Anesthésie générale chez l’enfant : quid des pratiques en 2010 ?

Introduction

The practice of pediatric anesthesia requires a regular update of scientific knowledge and technical skills. To provide the most adequate Continuing Medical Education programs, it is necessary to assess the practices of pediatric anesthesiologists. Thus, the objective of this survey was to draw a picture of the current clinical practices of general anesthesia in children, in France.

Material and methods

One thousand one hundred and fifty questionnaires were given to anesthesiologists involved in pediatric cases. These questionnaires collected information on various aspects of clinical practice relative to induction, maintenance, recovery from general anaesthesia and also classical debated points such as children with Upper Respiratory Infection (URI), emergence agitation, epileptoid signs or anaesthetic management of adenoidectomy. Differences in practices between CHG (general hospital), CHU (teaching hospital), LIBERAL (private) and PSPH (semi-private) hospitals were investigated.

Results

There were 1025 questionnaires completed. Fifty-five percent of responders worked in public hospitals (CHG and CHU); 77% had a practice that was 25% or less of pediatric cases. In children from 3 to 10 years: 72% of respondents used always premedication and two thirds performed inhalation induction in more than 50% of cases. For induction, 53% used sevoflurane (SEVO) at 7 or 8%. Respondents from LIBERAL used higher SEVO concentrations. Tracheal intubation was performed with SEVO alone (37%), SEVO and propofol (55%) and SEVO with myorelaxant (8%), 93% of respondents used a bolus of opioid. For maintenance, the majority of respondents used SEVO associated with sufentanil; desflurane and remifentanil were more frequently used in CHU. Two thirds of respondents used N₂O. Depth of anesthesia was commonly assessed by hemodynamic changes (52%), end tidal concentration of halogenated (38%) or automated devices based on EEG (7%). In children with URI, 98% of respondents used SEVO for anesthesia. To control the airway 42% used a tracheal tube, 30% a laryngeal mask and 20% a facial mask. Emergence agitation was an important concern for two thirds of respondents, while epileptoid signs were considered as important by only 20%. Eighty-nine percent of respondents practiced anesthesia for adenoidectomy. Anesthesia was induced by inhalation of SEVO 7–8% (41%), 6% (39%) or 4% (12%), 66% put an intravenous line (less frequently in LIBERAL). 67% of the responders managed adenoidectomy without any device to control the airway (more frequently in LIBERAL), 32% administrated a bolus of opioid (less frequently in LIBERAL).

Discussion

This survey demonstrated that the practices regarding general anesthesia in children are relatively homogenous. Most of the differences appeared between LIBERAL and the others structures; the anaesthetic management for adenoidectomy illustrates these findings.     

Intérêt d’une rééducation précoce pour les patients neurologiques

Rehabilitation improves the functional prognosis of patients after a neurologic lesion, and tendency is to begin rehabilitation as soon as possible. This review focuses on the interest and the feasibility of very early rehabilitation, initiated from critical care units. It is necessary to precisely assess patients’ impairments and disabilities in order to define rehabilitation objectives. Valid and simple tools must support this evaluation. Rehabilitation will be directed to preventing decubitus complications and active rehabilitation. The sooner rehabilitation is started; the better functional prognosis seems to be.     

Risiko Schlaganfall — Öffentlichkeitsarbeit und Aufklärung dringend erforderlich

Zusammenfassung Das wesentliche — und zugleich noch wenig ausgeschöpfte — Potenzial der Schlaganfallmedizin liegt in der langfristigen Prophylaxe. Durch Beeinflussung von Lifestylefaktoren wie Ernährungsgewohnheiten, Zigarettenkonsum und körperlichem Training durch entsprechende Aufklärung ließe sich ein erheblicher Teil an zerebralen Ereignissen vermeiden. Ein weiterer in Deutschland noch zu wenig beachteter Faktor ist die konsequente Blutdruckeinstellung. Breitgestreute Aufklärung könnte außerdem potenziellen Patienten helfen, bereits auftretende Warnsymptome wie die transiente ischämische Attacke richtig einzuschätzen, um eine rechtzeitige Behandlung zu ermöglichen.