首页 | 官方网站   微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
PURPOSE: To compare the incidence of incomplete analgesia when epidural local anesthetic is administered with the parturient supine in a 30 degree leftward tilt or in the left lateral decubitus position. METHODS: After placement of a multiorifice catheter 5 cm into the epidural space, 293 women in active labour were randomly positioned either to the left lateral decubitus position (lateral group) or supine with a 30 degree leftward tilt (tilt group) and then received 13 mL bupivacaine 0.25%. The success of the epidural block was determined by asking the patient if she required additional medication 15 min later. The incidence of complications (fetal heart rate decelerations, hypotension, and ephedrine usage) was noted. RESULTS: In the lateral group, 38% required additional medication compared with 24% in the tilt group (P = 0.006). There were no differences between groups in the incidence of maternal hypotension or fetal heart rate decelerations, but more women (10%) received ephedrine in the lateral than in the tilt group (4%), P = 0.035. CONCLUSIONS: Placing the parturient supine with a 30 degree leftward tilt is associated with a greater success rate of labour epidural analgesia without an increase in complications than in women in the left lateral decubitus position. This advantage should be considered when positioning the parturient after epidural catheter placement.  相似文献   

2.
Chinn S  Rona RJ 《Thorax》2001,56(11):845-850
BACKGROUND: The reported association between asthma and obesity and the documented rise in each over time have led to suggestions that rising obesity might explain the increase in the prevalence of asthma. Trends in both in British children participating in the National Study of Health and Growth were marked from 1982 to 1994. METHODS: Odd ratios for trends in asthma and symptoms in 8 and 9 year old children were calculated with and without adjustment for body mass index (BMI). RESULTS: In a representative sample of white children the odds ratio per year for asthma was 1.09 (95% CI 1.07 to 1.11) before and after adjustment for BMI for boys and 1.09 (95% CI 1.07 to 1.12) and 1.09 (95% CI 1.05 to 1.12), respectively, for girls. Unadjusted and adjusted odds ratios were also virtually identical for wheeze and "asthma or bronchitis". The lack of effect of adjustment was due to a change in the association between BMI and symptoms with time. CONCLUSIONS: Trends in overweight and obesity do not explain the increase in asthma. The evidence points towards the association between asthma and obesity being of recent origin. This may be explained by obesity being a marker of recent lifestyle differences now associated with both asthma and overweight.  相似文献   

3.
MRI has been established as an essential tool for accurate diagnosis in patients with musculoskeletal trauma. Its major advantages include excellent soft tissue contrast, high spatial resolution and lack of ionizing radiation. Although plain radiographs remain the basic tool for diagnosis and treatment planning in bone fractures assisted by CT in pelvic, spine and large joints injuries, there are specific circumstances that require MRI. For instance, tendinous, ligamentous, intraarticular structures such as the cartilage and menisci, and intramedullary injury are seen mostly with MRI. Volumetric 3D techniques are now commercially available and provide higher spatial resolution which improves anatomic detail, allows multiplanar reformations and reduces the acquisition time. Newer applications on quantitative rather than morphologic imaging, such as relaxometry and diffusion tensor imaging, may be of paramount importance in treatment planning in the near future. Software improvements reduce metal induced artefacts, allowing thus imaging of the postoperative patient with metallic implants. A tendency towards a structured reporting pattern and standardised medical communication needs to be further explored for the benefit of orthopaedic surgeons, radiologists and patients.  相似文献   

4.
5.
As an emergency, a foreign body in the heart should generally be removed as early as possible by surgical or non-surgical procedures in order to avoid any complications. Early treatment typically results in a better prognosis.CASE REPORTA38-year old woman…  相似文献   

6.
The health scenario of western Nepal is bleak and especially the Neurosurgical facilities are poor. We started the Department of Neurosurgery in April 2008 and has been improvising to do various cases with good success rate. Although not very well equipped, we have tried to do our best and the results have been encouraging.  相似文献   

7.

OBJECTIVE

To determine whether the survival benefit achieved with radical cystectomy (RC, the reference standard for treating muscle‐invasive bladder cancer) in younger patients justifies its use in octogenarians.

PATIENTS AND METHODS

We used the Surveillance Epidemiology and End Results data of the National Cancer Institute and identified 10 807 patients from 1992–2004 who were diagnosed with muscle‐invasive bladder cancer, and were treated with either RC or radiotherapy. The data were analysed for age, gender, race, extent of lymphadenectomy and cause of death. We stratified the patients by age groups (<60, 60–69, 70–79 and >79 years), and used Kaplan‐Meier survival analysis to compare treatment strategies by age group.

RESULTS

In all, 8034 patients had RC and 2773 radiotherapy; RC was the primary method of treatment in all age groups except for octogenarians. Those who had RC had a sizeable overall survival advantage in all age groups, except for the octogenarians (18 vs 15 months). This small survival advantage improved only slightly (23 vs 15 months) when excluding patients having nodal or distant metastasis. The octogenarians who have RC with a limited pelvic lymph node dissection or RC alone receive little (16 vs 15 months) or no survival benefit. However, cancer‐specific survival was significantly higher in those who had RC, including octogenarians.

CONCLUSIONS

Octogenarians have some benefit to cancer‐specific survival from RC if it includes a standard lymphadenectomy. The issue is how to better select the patients, as the overall survival advantage in these patients over radiotherapy is negligible.  相似文献   

8.
9.

Purpose

The purpose of this study was to evaluate the biomechanical results from the in vitro reconstruction of medial patellofemoral ligament (MPFL) using a navigation-assisted technique on a cadaveric model and its effects on patellar stability and kinematics. The authors investigated the hypothesis that patellar kinematics after reconstruction with a tubular graft are not optimal when compared with the original fan-shaped MPFL.

Methods

In six fresh-frozen cadaveric knees, lateral loads (25 N) were applied on the patella at 0°, 30°, 60° and 90° of knee flexion in three different MPFL states: intact, cut and reconstructed. The arrangement allowed positional measurements of patellar motion to be tracked in six degrees of freedom. Medial to lateral patellar translation and patellar tilt were recorded. The kinematics after a technique of MPFL reconstruction, performed with a gracilis tendon in a blind femoral tunnel guided by navigation, were compared against kinematics recorded in the MPFL intact state. A temporary fixation of adequate tension to engage the lateral patellar facet in extension was applied to the MPFL and, after graft cycling, the final fixation was done at 70° knee flexion with an interference screw.

Results

There was a comparable medial to lateral patellar translation and tilting of the patella in the MPFL-intact and the MPFL-reconstructed state. Static patellar translation in the MPFL-reconstructed state, with and without the application of load, was comparable to patellar translation in the MPFL-intact state. The dynamic patellofemoral shift kinematics recorded an under-constraint in early flexion and over-constraint in late flexion, while an opposite effect was recorded in patellar tilt. However, these differences were not statistically significant.

Conclusion

The study confirmed the major role of the MPFL in case of medial loading between 0° and 60°, by focusing on the importance of kinematically identifying the proper femoral point for fixation. While the study demonstrates the importance of kinematic determination of the proper femoral point of fixation, as the anatomical insertion remains difficult to identify. Even in dissected cadavers, the authors recorded a slightly anterior placement than native MPFL. After reconstruction, patellar stability in terms of lateral translation and tilt was similar to the intact MPFL, but patellar kinematics were not optimal with the use of a smaller and tubular graft than the native wider and fan-shaped MPFL.  相似文献   

10.
11.
Fanning GL 《Anesthesiology》2004,101(4):1045; author reply 1045-1045; author reply 1046
  相似文献   

12.
13.
14.
Plagiarism is a common form of academic misconduct that extensively jeopardises the quality of scientific publication. The purpose of this study is to determine the extent of plagiarism in the most influential andrology articles. A total of 77 highly cited andrology articles were analysed for their similarity index using iThenticate and Turnitin. The articles were categorised based on the year (before and on/after 2000) and type of publication (review and research articles), and the similarity indices were compared. Furthermore, the analysed articles were categorised based on the level of similarity using an arbitrary similarity index range (low: ≤10, moderate: 11–20, high: 21–50 and very high: >50) and average incidence rate (%) was determined. Our analysis revealed a higher percentage of the similarity indices for reviews than research articles. We noticed a higher similarity index for articles published on/after 2000 than those published before. The majority of the influential articles in the field of andrology showed a low similarity index, while some articles exhibited moderate to high levels of similarity. These findings support the need for the development of similarity index guidelines as a major pre‐requisite for establishing a more transparent and efficient system to address plagiarism in scientific publications.  相似文献   

15.
Vertebral fractures, particularly if they are nonsymptomatic, are old, and have not produced kyphotic deformity, should be treated with conservative care, including appropriate medical management. Those fractures that are symptomatic, produce pain that persists over several weeks (4 out of 10 on the visual analog score), and have resulted in some kyphotic deformity should be treated with a vertebroplasty or kyphoplasty. Patients with kyphotic deformity of less than 20% can obtain pain relief from vertebroplasty that is comparable to pain relief from kyphoplasty. For patients with a greater degree of kyphosis, only kyphoplasty can offer the predictable restoration of height and realignment of the spine. Currently we treat all Colles' fractures, all hip fractures, and all tibia plateau fractures. The time has come to treat all symptomatic vertebral fractures.  相似文献   

16.

Objectives

The goal of the article is to present the changes in morbidity and costs of systemic lupus erythematosus (SLE) in Poland in the 2008–2012 period, depending on the province of residence of the patients based on data reported to the public payer – the National Health Fund.

Material and methods

Based on the ICD-10 code and the patient''s personal identity number, the number of patients and medical costs (cost of hospitalization, pharmaceutical, medical procedures, dialysis and specialist consultations) were calculated by province (voivodeship) and urban or rural residence.

Results

Annually on average in the assessed period in Poland approximately 20 000 patients were diagnosed with SLE. The studied group was dominated by women (they were 5.2 times more numerous). The morbidity rate was 52.183 patients per 100 thousand inhabitants. Most patients were in the age range of 48–56 years. Average annual expenses for this group of patients over the examined period were USD 16,327 million. Two times more was expended on patients inhabiting cities, approximately 4 times more on women. Calculated per patient, the average cost of therapy was USD 810.63.

Conclusions

The population of SLE patients in Poland is highly stable. The results of analysis indicate 1.64 times more frequent occurrence in urban areas, which may be connected with availability of doctors. The SLE treatment costs in Poland are much lower than in other countries, which is related mainly to the fact that therapy with biological drugs is not financed.  相似文献   

17.
Stern R 《Injury》2007,38(Z3):S77-S87
While the rate of failure following hip fracture surgery for extracapsular hip fractures in the elderly is low, an incidence of implant cutout from the femoral head remains regardless of whether fixation is by sliding hip screw or intramedullary nail. In general, a well-executed osteosynthesis is the best assurance of a good outcome with few complications, and typically a less than ideal placement of the implant in the femoral head is the reason for cut-out and failure of the operation. It is clear that there is no difference in the incidence of complications or functional outcome between a sliding hip screw and an intramedullary nail for pertrochanteric fractures (AO/OTA 31-A1 and A2), while the implant of choice in the elderly for the true intertrochanteric fracture (AO/OTA 31-A3; reverse intertrochanteric) is a nail. However, what is less clear is whether there are newer ideas and/or implant designs that represent true advances in the treatment of extracapsular fractures in the elderly. The following review focuses on just this issue.  相似文献   

18.
Four factors influence the outcome of rectal surgery: tumour biology, stage of lesion, type of surgery performed and the performing surgeon himself. Tumour biology and tumour stage depend on each other and are not influenced on by the surgeon, while he seems to have a great influence on the latter two factors. This influence mainly consists of the following: training, volume, individual skill and experience.  相似文献   

19.
20.
目的 探讨内外源性β-葡萄糖醛酸酶在两类原发性胆总管结石(胆固醇结石与胆色素结石)形成中的作用.方法 应用Fishman法检测实验组、对照组胆总管胆汁中内、外源性β-G活性.结果 胆红素结石组(PS)、胆固醇结石组(CHS)与对照组(CG)比较,内、外源性β-G活性及总活性均有显著性差异;胆红素结石组与胆固醇结石组之间比较(手术当天)外源性β-G活性差异有显著性,内源性β-G活性差异无显著性.(2)实验组手术当天胆汁中内源性β-G活性与术后第七日的比较差异无显著性;而外源性β-G活性手术前、后比较差异有显著性.结论 内、外源性β-G可能是这两类原发性胆总管结石形成与再发的基本原因之一.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号