【Abstract】 Objective To investigate corresponding relation between structure change of the femoral head with“crescent sign” and stress exerted on the avascular necrosis of femoral head, to explore the mechanism of the “crescent sign” formation. Methods From March 1998 to April 2003, the femoral heads of 18 hips in 16 cases having osteonecrosis and “crescent sign” in X-ray film before total hi p arthroplasty, were collected. General and coronal section plane morphology of the femoral heads were observed. The princi ple of effective stress and stress concentration theory were used to explain the phenomena and structure changes in osteonecrosis of the femoral head. Results Cancellous bone existed as a threedimensional,interconnected network of trabeculae rods and plates, with 50%-90% of porosity and 20-30 mmHg bone marrow pressure. According to the definition of porous media, bones especially cancellous bone was a kind of sol id and l iquid two phases porous media. Cross-sectional structure changes in the junction between subchondral plate and cancellous were the place where stress concentrated. The principle of effective stress and stress concentration theory could explain the phenomena and their relationship that occurred in avascular necrosis of the femoral head. Conclusion The “crescent sign” starts in an area of very focal resorption in the subchondral plate laterally and peripherally. The focal resorption in the subchondral plate breaks the continuity of subchondral plate and causes stress concentration in the resorption region. The concentrated stress accumulates in the junction between subchondral plate and unrepaired necrotic cancellous bone brings on the fracture right below the subchondral plate. The focal resorption of the subchondral plate also provides a pathway for the pore water in the unrepaired necrotic bone skeleton to outflow, therefore cause effective stress increase and unrepaired necrotic bone skeleton be compacted by increased effective stress appl ied on unrepaired necrotic cancellous bone skeleton, and results in the volume decrease of unrepaired necrotic cancellous bone and the formation of cavum below the subchondral plate. The cavum shows “crescent sign” in the X-ray film.
Objective To explore the application of peer education in TB prevention at middle schools in Kai County of Chongqing and compare it with traditional education, and to provide theory support for further policy making. Methods Four complete middle schools were randomly selected as the control group, the peer education group, the traditional education group and the combined group of peer education and traditional education, respectively. Effect evaluation was performed one month later (instant evaluation) and six months later (long-term evaluation), respectively, after the intervention period. Results The instant and long-term evaluation showed that the knowledge, attitude and practice scores of the three intervention groups were higher than the scores before intervention or those of the control group (Plt;0.01). Besides, the behavior score of the peer education group had no significant difference between instant and longterm evaluation. All scores in the instant evaluation were higher than those of long-term evaluation both in the peer education group and the traditional education group (Plt;0.01). For the knowledge, attitude and practice scores, there was no significant difference between instant and long-term evaluation in the combined group of peer education and traditional education. Conclusion Compared with the peer education group and the traditional education group, the combined group achieves an enduring effect. There is obvious instant effect in the traditional education group, and peer education has a long-term influence on students’ behavior.
ObjectiveTo evaluate the effects and safety of statins in patients with acute respiratory distress syndrome (ARDS). MethodsLiteratures in English and Chinese concerning randomized controlled trials (RCTs) on statins in ARDS patients were retrieved by electronic and manual search. All related data were extracted. Meta-analysis was conducted using the statistical software RevMan 5.3 on the basis of strict quality evaluation. ResultsFive RCTs involving 1489 ARDS patients were included, with 709 patients in the statins group and 780 patients in the placebo control group. Compared with the control group, statins did not improve the survival of ARDS patients[risk ratio (RR) 1.01, 95% confidence interval (CI) 0.86 to 1.18, P=0.91), while the improvement of oxygenation[mean difference (MD) 3.92, 95%CI-14.10 to 21.94, P=0.67], ventilator-free days (MD 0.65, 95%CI-0.20 to 1.50, P=0.13) and non-pulmonary organ failure-free days (MD 1.20, 95%CI-1.46 to 3.87, P=0.38) exhibited no differences between the statins group and the control group. However statins were associated with significant elevation of creatine kinase (MD 6.92, 95%CI 5.77 to 8.07, P < 0.000 01). ConclusionThis study demonstrates that statins can not improve outcomes of ARDS patients, and the safety of statins still needs further evaluation.
Objective To explore the application effects of innovative health education on patients undergoing ambulatory laparoscopic cholecystectomy (LC). Methods A total of 139 patients undergoing ambulatory LC from November to December 2016 were selected as the control group, receiving the traditional health education; and other 141 patients undergoing ambulatory LC from February to March 2017 were selected as the observation group, receiving the innovative health education. The two groups were followed up and observed 1 day, 2, and 28 days after the discharge, and the incidence rates of adverse reactions such as postoperative pain, bleeding and incision infection were measured, and the disease knowledge mastery, self-care skills, medication compliance and satisfaction to nursing and hospital were evaluated. Results The total incidence rate of adverse reactions was 7.8% in the observation group and 25.2% in the control group (P<0.001). Medication compliance from high to low was 90, 46 and 5 cases in the observation group and 59, 64 and 16 cases in the control group (P<0.001). In the observation group, the scores of disease knowledge mastery, self-care cognition, nursing satisfaction and hospital satisfaction were 93.4±5.5, 91.4±4.5, 96.4±3.7 and 98.1±3.7, respectively, which were higher than those in the control group (83.8±8.7, 83.2±9.1, 91.5±9.2 and 94.8±7.3, respectively) with statistical significance (P<0.001). Conclusion Innovative health education has certain application effects on ambulatory LC, and it can significantly improve disease knowledge mastery and self-care cognition, and help to ensure the medical quality and safety during perioperative period, and improve the patients’ satisfaction.
ObjectiveTo observe the effect of health education on hand, foot and mouth disease knowledge of the parents and their psychological status, in order to provide a reference for regulating clinical intervention measures. MethodsBetween October 2011 and February 2013, self-made questionnaire was used to survey the parents of 286 children with hand, foot and mouth disease for their knowledge about the disease. We promoted health education including distributing pamphlets, holding lectures, and carrying out psychological counseling. Then, parents' knowledge and their psychological status were compared before and after the implementation of health education. ResultsAfter health education, parents' suspicion, anxiety, fear, indulgence in children and other negative psychological scores were significantly lower than those before intervention (P<0.05). Their knowledge on the disease was also significantly enhanced (P<0.05). Gender, age and educational background were the main influence factors for health education. ConclusionMulti-form comprehensive health education can enhance parents' knowledge on hand, foot and mouth disease effectively and alleviate various negative psychological situations, which assists them to participate in the treatment work actively, thus greatly promotes early rehabilitation of the child patients.
Objective To evaluate the effectiveness of terazosin, tamsulosin and finasteride for benign prostatic hyperplasia (BPH). Methods We searched the related original studies all over the world, and only included randomized controlled trials (RCT) and quasi-randomized controlled trials (CCT). MEDLINE (1966 to Dec. 2004), EMBASE (1984 to Dec. 2004), The Cochrane Library (Issue 4, 2004) and four Chinese databases were electronically searched and 10 related journals were handsearched. The studies included in the references of eligible studies were additionally searched. Two reviewers independently screened the studies for eligibility, evaluated the quality and extracted the data from the eligible studies, with confirmation by cross-checking. Divergences of opinion were consulted by a third party. Meta-analysis was performed by using RevMan 4.2 software. Results Twelve original studies involving 2 471 participants met inclusion criteria. Compared with terazosin, tamsulosin could improve international prostatic symptom score, with WMD 0.75, 95% confidence interval (CI) 0.03 to 1.46, P=0.04. There was no statistical difference between terazosin and tamsulosin in improving the average rate of urine flow (WMD 0.23, 95%CI -0.39 to 0.85, P=0.46), the residual urine volume (WMD 0.82, 95%CI -2.92 to 4.57, P=0.67) and in diminishing the volume of prostate (WMD 2.20, 95%CI -3.99 to 8.39, P=0.49). There was no statistical difference between finasteride and tamsulosin in improving the international prostatic symptom score (WMD 0.65, 95%CI -0.45 to 1.75, P=0.25) or the max rate of urine flow (WMD 0.39, 95%CI -0.72 to 1.51, P=0.49). Only two studies compared finasteride with terazosin and had different conclusions. Only one study compared finasteride or terazosin with a combination of these drugs suggested that the combination had higher effective power than finasteride alone but no difference with terazosin alone. Conclusions Although the effectiveness in some aspects is higher in the tamsulosin group, there is not enough evidence to show which one is the best among these three drugs. The combination of finasteride and terazosin does not show more effectiveness than terazosin alone. This review suggests that tamsulosin alone should be used for the treatment of BPH and the combination needs to be identified by better evidence. It is important to improve the quality of original studies.
Objectives To evaluate the effectiveness of different antidepressant drugs in addition to standard clinical care in the prevention of postnatal depression. To compare the effectiveness of different antidepressant drugs and with any other form of intervention for postnatal depression i.e. hormonal, psychological or social support. To assess any adverse effects of antidepressant drugs in either the mother or the foetus/infant.Methods The register of clinical trials maintained and updated by the Cochrane Depression, Anxiety and Neurosis Group and the Cochrane Pregnancy and Childbirth Group.Randomised studies of antidepressants alone or in combination with another treatment, compared with placebo or a psychosocial intervention in non-depressed pregnant women or women who had given birth in the previous six weeks (i.e. women at risk of postnatal depression). Data were extracted independently from the trial reports by the authors.Missing information was requested from investigators wherever possible. Data were sought to allow an intention to treat analysis.Results Two trials fullled the inclusion criteria for this review. Both looked at women with a past history of postpartum depression.Nortriptyline (n=26) did not show any benefit over placebo (n=25). Sertraline (n=14) reduced the recurrence of postnatal depression and the time to recurrence when compared with placebo (n=8). Intention to treat analyses were not carried out in either trial.Conclusions It is not possible to draw any clear conclusions about the effectiveness of antidepressants given immediately postpartum in preventing postnatal depression and, therefore, cannot be recommended for prophylaxis of postnatal depression, due to the lack of clear evidence. Larger trials are needed which also include comparisons of antidepressant drugs with other prophylactic treatments to reect clinical practice, and examine adverse effects for the foetus and infant, as well as assess womens’ attitudes to the use of antidepressants at this time.
ObjectiveTo investigate the operation and effect of pressure ulcers group (PUG) on the procedure of clinical management of pressure ulcers. MethodsThe in-hospital patients with high-risk pressure ulcers and patients with pressure ulcers from outside of the hospital (n=145) before the founding of PUG in 2011 were regarded as group A, and patients in this group were treated by traditional therapies. After PUG was founded in our hospital in January 2012, 192 patients with high-risk pressure ulcers and from outside of the hospital in 2012 were considered as group B. In addition, group C contained 380 patients treated in 2013. Group B and C were both treated by PUG that developed a management system of pressure ulcers and took active measures to control and prevent pressure ulcers. PUG trained 30 clinical nurse supervisors, who were recommended from relevant clinical departments. The incidence of inevitable pressure ulcer of hospitalized patients, the cure rate of patients with pressure ulcers from outside of the hospital, pressure ulcer knowledge level of clinical nurse supervisors were comparatively analyzed between group A and B, and between group A and C, respectively. ResultsAfter the establishment of PUG, the incidence of inevitable pressure ulcer of hospitalized patients in group A, B, and C was 76.20%, 17.02%, and 14.61%, respectively. The cure rate of patients from outside of the hospital was 54.84%, 86.84%, and 87.97%, respectively. Differences between group A and B, and between group A and C both were significant (P<0.01). The pressure ulcer knowledge level of all nurse supervisors improved significantly (P<0.001). ConclusionThe establishment of PUG makes the clinical pressure ulcer management more scientific and objective. Furthermore, it can effectively reduce the incidence of pressure ulcers, and also improve the quality of medical care and ensure the safety of patients.
Objective To evaluate the application effect of epilepsy prevention and management project in rural areas of Neijiang City. MethodsAccording to the requirements of the "Rural Epilepsy Prevention and Management Project Work Manual" (2021 edition) of the National Epilepsy Prevention and Management Project Office, the follow-up data of patients in rural areas of Neijiang City from the beginning of the epilepsy prevention and management project to December 2023 were collected, and the patient treatment effect of the project was evaluated. Results The total effective rate was more than 70% after 3 months of treatment, As the treatment time is extended, the total efficiency is upward. Adverse drug reactions occurred mainly in the first 3 months of treatment.The patients dropped out of the group because they did not achieve the expected effect, poor treatment compliance and could not tolerate serious adverse reactions. Conclusion The prevention and treatment of epilepsy in rural areas of our city has a good effect of promotion.The follow-up management of patients in the first 3 months of treatment should be strengthened to ensure the continuity and standardization of treatment.
ObjectiveTo assess effect of the self-made traditional Chinese medicine iontophoresis in treatment of acute lactation mastitis. MethodsTwo hundred cases of acute lactation mastitis who were treated in Langfang Maternal and Child Health-Care Hospital from Apr.to Nov.in 2012 were divided into traditional Chinese medicine group and control group by number of cases, each group enrolled 100 cases.The cases of traditional Chinese medicine group were treated with traditional Chinese medicine iontophoresis by using photoelectric ion therapeutic apparatus, and cases of control group were treated with 0.9% saline iontophoresis by using the same device.All of the 200 cases were treated with 1-3 courses (5 days per course), 2 times per day, and every time needed 30 minutes.At the same time, cases were educated the breast-feeding knowledge.Effect evaluation was performed after 1 course and 3 courses of treatment.The cases who were not cured after 3 courses needed to weaning, and needed to receive abscess incision drainage surgery.In 3 months after stopping therapy, telephone interview was performed to investigate the situation of recurrence. ResultsAfter 1 course of treatment, the effect was as follows:recovery in 89 cases, effective in 6 cases, invalid in 5 cases, and the total effective rate was 89%(89/100) in traditional Chinese medicine group; recovery in 71 cases, effective in 16 cases, invalid in 13 cases, and the total effective rate was 87%(87/100) in control group.After 3 courses of treatment, the effect was as follows:recovery in 97 cases, invalid in 3 cases, and the total effective rate was 97%(97/100) in traditional Chinese medicine group; recovery in 86 cases, invalid in 14 cases, and the total effective rate was 86%(86/100) in control group.There were 3 cases and 14 cases underwent abscess incision drainage surgery in Chinese medicine group and control group respectively.The clinical effect of Chinese medicine group were better than that of control group in 1 course (χ2=3.96, P < 0.05) and 3 courses (χ2=7.78, P < 0.01) of treatment.The recurrence rate of Chinese medicine group and control group were 5%(5/100) and 35%(35/100) respectively, and the rate of control group was higher (χ2=28.13, P < 0.01). ConclusionsCom-pared with 0.9% saline iontophoresis, the effect of traditional Chinese medicine iontophoresis in the treatment of acute lactation mastitis is better, which contribute to the breastfeeding.In addition, it is worth popularizing for that it can reduce the operation rate and recurrence rate effectively.