ObjectiveTo investigate the domestic and abroad hypertension-related clinical trial registration and to analyze the registration of hypertension-related clinical researches in China.MethodsUsing hypertension as the keyword, we searched ClinicalTrials.gov and Chinese Clinical Trial Registry (ChiCTR) from January 2008 to December 2018. We analyzed the collected data on the distribution of registered clinical researches, annual trends, sample sizes, trial progress, research types, study designs, blind methods, clinical stages, the number of participating institutions, the leading institutions, etc.ResultsThe total number of registered hypertension-related clinical trails was 4 991 all over the world, and 551 items were conducted in China. Most of the sample sizes of Chinese hypertension-related clinical trials were 100 to 999. The main types of trials were interventional studies (393 items, 71.32%), followed by observational studies (126 items, 22.87%). Randomized parallel control studies (300 items, 76.34%) were the key component of interventional studies, while cohort studies (61 items, 48.41%) were the chief component of observational studies. The main stages of clinical trials were stage Ⅲ (80 items) and stage Ⅳ (122 items). There were 369 domestic single-center clinical trials (66.97%), 89 domestic multi-center clinical trials (16.15%), and 93 international multi-center clinical trials (16.88%). Among the 93 international multi-center trials of hypertension, only 25 were led by China.ConclusionsThe number of Chinese hypertension-related clinical trial registrations increased year by year and then decreased slightly, but the amount of registrations is limited. The quantity and scale of multicenter clinical studies were not as good as America. China should strengthen the awareness of clinical research registration, strengthen the publicity and supervision of the registration of clinical researches by the department of science and management, improve the number of clinical trial registrations, make Chinese clinical researches more transparent, and strive to lead more international multi-center clinical trials.
Objective To review progress of clinical application ofmorselized bone and to investigate relative exploration on it.Methods The recent articles on morselized bone in the field of clinicand experimental research were extensively reviewed, and relative examination of morselized bone referring to method and mechanism were investigated carefully.Results Morselized bone worked well clinically, especially inrevision ofartificial total hip joint, and it was proved effective with lots of advantages.Conclusion Morselized bone functions well clinically. Although its mechanism requires a further research, it still has a promising value in clinical application.
To investigate the relationship between clinicopathological features and lymph node metastasis in the primary gastric cancer and affer the basis for deciding appropriate extent of lymph node dissection, a total of 192 patients who underwent curative gastrectomy and lymph node dissection for gastric cancer were analyzed retrospectively. Result: The total rate of lymph node metastasis was 60.4%, with 28.9% of the resected lymph nodes involved. The lymph node metastasis of C, M, A region and the whole stomach were 64.6%, 57.7%, 59.1% and 90.9% respectively. The rates of the lymph node metastasis increased successively in carcinoma of early, middle and late stages (Ｐ＜0.05), the rate of the infiltrative tumor (Borr Ⅲ，Ⅳ) being 76.5% which was significantly higher than that of the circumscribed tumor (Borr Ⅰ，Ⅱ) (43.2%)。 Relating with the tumor size ＜4cm in diameter showed lesser rate, while 4-8 cm and ＞8cm in diameter showed increasingly higher metastaticrate (Ｐ＜0.01). As a result, we should decide the appropriate extent of lymph node dissection during the operation on the basis of clinicopathological stages, type of Borrmann’s, site and maximum diameter of gastric cancer along with the state of lymph node metastasis in carcinoma of different region of the stomach.
Medical ethics must be considered for protecting the fights and interests of patients in clinical trials. Now the fights of the subjects are more and more emphasised, but there are some problems. It is evidence-based medicine (EBM) and emphasis of evidence that need the high-quality clinical trials, yet it violates the principle of ethics in some degree. It will be helpful for the administrators to supervise the clinical trials on drugs well from the point of ethical views.
Objective
To explore the way of clinical pharmacists participating in formulating the chemotherapy regimen for cancer and pharmaceutical monitoring, through the practice of drug treatment in a patient with gestational trophoblastic neoplasia.
Methods
Clinical pharmacists participated in the treatment of one patient with low-risk gestational trophoblastic neoplasia in gynecological chemotherapy ward, from the first chemotherapy in January 2015 to the clinical cure. The countermeasures included designating chemotherapy regimen, monitoring clinical efficacy and adverse reactions, changing the chemotherapy regimen in time when the curative effect was poor, and coping with adverse reactions.
Results
Physicians adopted the suggestions from clinical pharmacists and the patient was clinically cured after standardized treatment.
Conclusion
Pharmaceutical care by clinical pharmacists can assist clinicians to ensure the safety and effectiveness of drug use.
ObjectiveTo observe the clinical and fundus imaging features of acute macular neuroretinopathy (AMN) associated with COVID-19. MethodsA retrospective case study. A total of 32 eyes of 18 patients diagnosed of AMN associated with COVID-19 at Chengdu Aidi Eye Hospital from December 2022 to February 2023 were included. All patients had a history of fever 1 to 5 days prior to ocular onset and tested positive for SARS CoV-2 antigen. All patients were examined by best-corrected visual acuity (BCVA), color fundus photography, scanning laser ophthalmoscope (SLO), infrared fundus photography (IR), and optical coherence tomography (OCT); OCT angiography, visual field and multifocal electroretinogram (mf-ERG) were performed in 6 patients (11 eyes), 3 patients (6 eyes) and 1 patient (2 eyes), respectively. Follow-up time was 8-10 weeks. The clinical and fundus imaging features were observed and analyzed.ResultsThere were 6 males (12 eyes) and 12 females (20 eyes), aged from 15 to 36 years, with the mean age of (28.00±5.86) years. Fourteen patients were bilateral and 4 patients were unilateral. The time from the onset of eye symptoms to seeing a doctor was ranged from 1 day to 8 weeks. Among them, 6 patients (10 eyes) visited the doctor within 3 days of onset, while 12 patients (22 eyes) visited the doctor after 3 days of onset. The BCVA was 0.80±0.29. Fundus color photography and SLO examination showed that only 2 patients (4 eyes) showed sheet or petal-like dark red lesions in the macular area, and no obvious abnormal changes were observed in other patients. No obvious abnormalities were found in AF examination of all patients. IR examination showed no significant abnormality in 6 cases which came to hospital within 3 days after the onset, but irregular hyporeflective dark shadow lesions in the macular region of patients with more than 3-day course of disease was observed. OCT examinations of all eyes showed hyperreflective band or patchy lesion on the outer plexiform layer (OPL) and outer nuclear layer (ONL) and affect the ellipsoid zone (EZ) and interdigitation zone (IZ). In 11 eyes of 6 patients undergoing OCTA examination, the blood flow density of the choroidal capillary layer in the focal area decreased. In 6 eyes of 3 patients who underwent visual field examination, the physiologic scotoma was slightly enlarged. One patient (2 eyes) receiving mf-ERG showed a concave reduction in macular center amplitude. The hyperreflective band lesion on OPL and ONL disappear rapidly within 2 weeks, while the continuity of EZ recovered slowly, and the disruption of IZ kept existing for more than 10 weeks. ConclusionsMost AMN associated with COVID-19 are young women; IR showed irregular weak reflex in the lesion area. OCT showed strong OPL and ONL reflection. OCTA was characterized by decreased blood flow density in the choroidal capillary layer of the focal area.
ObjectiveTo evaluate the quality of pancreatic cancer guidelines using evidence-based methods based on the global burden of pancreatic cancer, so as to explore its status, region distribution, characteristics of coverage themes, and difference of therapies recommended by the guidelines of various quality, and to provide references for clinical decisionmaking.
MethodsPubMed, The Cochrane Library (Issue 11, 2013), CBM, CNKI, and VIP, as well as the website of National Guidelines Clearinghouse (NGC), Guidelines International Network (GIN), and National Institute for Clinical Excellence (NICE) were systematically searched for pancreatic cancer treatment guidelines. The Appraisal of Guidelines for Research and Evaluation (AGREE Ⅲ) was applied to assess methodological quality of included guidelines.
ResultsA total of 14 relevant guidelines (including five evidence-based guidelines) were included involving seven countries of four continents (Asia, Europe, North America and Oceania) and four international academic organizations. There were only two domains, namely "scope and purpose" and "clarity of presentations" which got high average scores (more than 60%) among all 14 guidelines. The mean AGREE domain scores in guidelines varied with areas, and the quality of five evidence-based guidelines was superior to that established by consensus. According to the outcomes of AGREE Ⅲ, 11 guidelines were weakly recommended, while 3 were not recommended due to poor methodological quality. The subjects of 14 guidelines covered six treatment categories, including chemotherapy, surgery, radiotherapy, support therapy, radiotherapy, and interventional therapy.
ConclusionThe overall methodological quality of pancreatic cancer guidelines is not high among different countries or regions. The quality of evidence-based guidelines is superior to that established by consensus. Chemotherapy, surgery, radiotherapy and support therapy were reccommended as predominant choice by these guidelines.
Clinical practice is very important in clinical pharmacology education. However, there are some deficiencies in this field in China. Clinical trial institutions in China are medical institutions that are qualified to undertake drug clinical trials. There are hardware and software for clinical pharmacology practice, and high-quality teaching personnel with medical, teaching, and scientific research backgrounds in the clinical trial institutions, which can be used as clinical pharmacology teaching practice bases. Therefore, this article discusses the practice of clinical pharmacology teaching reform using clinical trial institutions as a practical platform, and aims to put forward teaching reform ideas that combining students’ clinical pharmacology research practice on the basis of theoretical teaching.
