Effects of capsaicin in temporomandibular joint arthritis in rats

Temporomandibular joint (TMJ) arthritis was induced in female Lewis rats by unilateral injection of a suspension of heat-killed Mycobacterium butyricum in paraffin oil into the TMJ. Control rats received paraffin oil by the same route. Arthritic and control rats were pretreated either with capsaicin or denervation of the mandibular branch of the trigeminal nerve. Tissues were collected for neuropeptide extraction and analysed by radioimmunoassay and reverse-phase high-performance liquid chromatography. In all groups, the levels of substance P- (SP), calcitonin gene-related peptide- (CGRP) and neuropeptide Y- (NPY) like immunoreactivity (LI) were higher in the trigeminal ganglia than in the TMJs. In control rats, capsaicin significantly lowered the levels of SP-LI in the trigeminal ganglia and TMJ, but not CGRP-LI and NPY-LI. In the arthritic rats, capsaicin pretreatment significantly lowered the SP-LI and CGRP-LI in the trigeminal ganglia and TMJ, but not the NPY-LI. In the trigeminal ganglia the unilateral denervation significantly lowered SP-LI in control rats, and in arthritic rats SP-LI and CGRP-LI. On the denervated side of the arthritic TMJ, NPY-LI, SP-LI and CGRP- LI were significantly lowered as compared to the arthritic control rats and to the contralateral side. In this rat model, pretreatment with capsaicin and surgical denervation decreased the neuropeptide content in the trigeminal ganglia and the TMJ. The results clearly demonstrate a close interaction between increased neuropeptide release from sensory and sympathetic neurones after induction of arthritis in the rat.     

儿童原发性腹膜后恶性肿瘤的诊断与治疗

分析原发性腹膜后恶性肿瘤１２例。８３％以腹块和腹痛为主要症状，体征中腹块占９１．５％，以恶性淋巴瘤居首位占６１％。全组完全切除率为５８％，行脏器联合切除占２５％。完全切除加放疗、化疗３年存活率为２８．５％，部分切除及活检未给其它治疗者５例预后差，均１年内死亡，差别显著。     

永存左上腔静脉在心脏直视手术中的处理

自1981年8月至1996年10月施行心脏直视手术1800例，发现永存左上腔静脉（PLSVC）11例，其中引入左心房1例。全部并发于其它心内畸形，且无特异体征。认为本中仔细探查是对PLSVC诊断的重要环节。本文对注意事项以及对不同类型的PLSVC引流入左房的外科处理方法进行了阐述。     

Comparison of local and general anesthesia in tension-free (Lichtenstein) hernioplasty: a prospective randomized trial

To compare pulmonary effects, postoperative pain and fatigue, morbidity, patient satisfaction, and cost of different anesthetic techniques for inguinal hernia repair, 50 patients were randomized to local and general anesthesia groups (LA and GA). All patients received the same premedications and the same postoperative analgesic regimen. The standardized postoperative analgesic, intramuscular pyroxicam 20 mg, was given to all patients in the recovery room and an additional 20 mg on the same day was given as requested by each patient. Pulmonary function studies and arterial blood gas analysis were performed 1 h prior to the operation and at the postoperative 8th and 24th hours. All patients underwent Lichtenstein's tension-free hernioplasty. Postoperative pain and fatigue were registered 8 h and 24 h after the operation. A questionnaire was filled out by the patients, and they were asked to give grades for the general comfort of the anesthesia and the surgical procedure (1=worst, 10=best). Postoperative pulmonary function tests were significantly poorer in the GA group both on 8th- and 24th-hour measurements (P<0.05). Patients who underwent LA had significantly lower PCO₂ and higher PO₂ at the postoperative 8th hour (P<0.05). Mean postoperative pain and fatigue scores revealed a significant difference in favor of local anesthesia at only the 8th hour (P<0.05). There were two complications, one in each group (a hematoma in LA and a urinary retention in GA). Patient satisfaction grades were not different in the two groups. We conclude that LA in inguinal hernia repair does not adversely affect pulmonary functions, patients feel less pain, and patient satisfaction is comparable to that with GA. Electronic Publication     

先天性胆总管囊肿23例的术式及疗效分析

目的：探讨先天性胆总管囊肿的术式及疗效。方法：回顾分析手术治疗先天性胆总管囊肿23例，其中Roux-Y囊肿-空肠吻合8例；囊肿切除，Roux-Y肝总管-空肠吻合15例。结果：20例获得随访，Roux-Y囊肿-空肠吻合随访6例，仅2例无症状，另4例反复发作腹痛，发热或黄疸，其中1例再手术，囊肿切除，Roux-Y肝总管-空肠吻合随访14例。仅1例有腹痛，余13例无症状，结论：Roux-Y肝总管-空肠吻合是治疗先天性胆总管囊肿的首选术式。     

原发性甲状腺功能亢进症合并甲状腺癌18例分析

目的：探讨原发性甲状腺功能亢进症（甲亢）合并甲状腺癌（甲癌）的诊断和治疗。方法：回顾分析1990年1月于2000年1月手术治疗18例甲亢合并甲癌患者的临床资料，结果：微小癌占83％（15／18）。术前彩超检查15例，14例发现可疑结节；13例行癌侧叶全切除和对侧叶次全切除术，5例行双侧叶次全切除术，其中3例同时行颈淋巴结清扫术，1例二次行颈淋巴结清扫术。随访16例，平均随访7年，1例死于癌肺转移，余者仍存活，结论：术前常规彩超检查发现可疑结节有助于术中冰冻切片病理检查，手术治疗应兼顾甲亢和甲癌。     

彩超对肾移植术后并发肝脏恶性肿瘤的监测

目的　探讨彩超在肾移植术后并发肝脏恶性肿瘤监测中的应用价值。　方法　应用 Acuson12 8XP彩色多普勒超声诊断仪 ,对在我院行异体肾移植手术的终末期尿毒症患者 12 0 0例进行规律随访。　结果　发现 17例恶性肿瘤 ,其中肝癌 7例 ,占 4 1.17%。 5例肿块单发 ,2例多发 ;肿块最大 10 cm× 10 cm,最小 2 .3cm× 2 .1cm。其中 6例手术病理证实 ,1例肝活检证实。　结论　对移植肾术后患者 ,首选彩超随访肝脏变化 ,能早期发现肿瘤 ,为临床选择治疗方案提供时机 ,并提高换肾后发生恶性肿瘤患者的存活率     

Postoperative convalescence after inguinal hernia surgery: Prospective randomized multicenter study of laparoscopic versus Shouldice inguinal hernia repair in 1042 patients

Interest in inguinal hernia surgery has increased significantly with the introduction of new operating techniques during the past decade. This multicenter study compared short-term results in patients treated by the laparoscopic transabdominal preperitoneal patch technique (TAPP; n=518) and the Shouldice technique (n=524). We evaluated demographics, operative data, complications, hospital stay, postoperative pain, use of analgesics, functional status, sick leave, and complaints up to 3 months postoperatively. The median operating time was shorter in the Shouldice group (55 vs. 65 min), but there were no significant differences in complication rates, and major complications were rare. The hospital stay was 1 day or less in over 98% of cases in both groups, but more operations were performed on outpatient basis in the Shouldice group. In the TAPP group postoperative pain and analgesic consumption were less, postoperative functional status was better, and sick leave was shorter (10 vs. 14 days). These results show that the two methods are equally safe and have few major complications. The TAPP operation is associated with less postoperative pain, better postoperative functional status, and shorter sick leave, but at the price of a longer operating time. Electronic Publication     

Facilitation of discrimination transfers under amphetamine: the relative control by S+ and S− and general transfer effects

Rats were trained in a Y-maze on a two-choice simultaneous black-white discrimination with either black or white as S⁺. Animals were then transferred to one of three discrimination tasks. In task 1 (New S^–), a new stimulus, either vertical or horizontal stripes, was substituted for the original S^–. In task 2 (New S⁺), a new stimulus, either vertical or horizontal stripes as in task 1, was substituted for the original S⁺. In task 3 (New S⁺/S^–) animals were trained on horizontal-vertical discrimination. The pre-trial administration of 1 mg/kg d-amphetamine facilitated the acquisition of the original black-white discrimination with both black as S⁺ and white as S⁺. Likewise, the drug improved performance in all three transfer conditions. However, the course of learning in the three transfer tasks was different in the placebo- and amphetamine-treated animals. Amphetamine-treated animals were disrupted more by a change in S⁺ than by a change in S^–, whereas the opposite pattern was evident in the placebo controls. When both discriminative stimuli were changed, placebo animals exhibited pronounced decrement in performance, whereas amphetamine animals exhibited excellent learning. The implications of these findings for the effects of amphetamine on discrimination learning are discussed.     

335例术后全身炎症反应综合征的临床分析

【目的】了解手术创伤对术后全身炎症反应综合征 (SIRS)的影响。【方法】搜集外科重症监护室 (SICU) 335例患者的术后资料 ,分析不同手术组SIRS发病率 ;手术时间、失血量与SIRS持续时间的关系 ;SIRS持续时间与术后并发症的关系。【结果】术后SIRS发病率为 75 8% ,大手术高达 92 4 % ;无并发症患者失血量与SIRS持续时间呈正相关 (r1=0 783,P<0 0 1) ,手术时间与SIRS持续时间呈正相关 (r2 =0 398,P <0 0 1) ;随着SIRS持续时间延长 ,并发症发病率显著增高 (P<0 0 5 )。【结论】术后SIRS发生、发展与手术创伤密切相关 ;监测SIRS进程有助于及早发现并发症