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目的:评估角膜基质环植入术治疗圆锥角膜的临床疗效。

方法:这一回顾性对照干预性研究对56例87眼圆锥角膜患者进行手术后随访。所有患者完善眼科检查,评估视力。15眼使用飞秒激光制备角膜隧道。72眼使用机械的方法制备角膜隧道。

结果:所有患者术前裸眼视力1.38±0.37。术后4mo裸眼视力达到0.58±0.32。术后16mo达到0.48±0.30。

结论:角膜基质环植入术是治疗圆锥角膜的有效方法。有效的干预与理想的术后视力相关。飞秒激光角膜隧道制备和机械方法一样安全。  相似文献   

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Background Head and neck cancer (HNC) is the ninth most common cancer worldwide, and has a poor 5-year survival rate averaging 50%, which has not changed for decades. A high prevalence of HNC has been reported in the southwestern region of Saudi Arabia, as compared to other areas of the country. However, data in regards to HNC are scattered and not well documented. Thus, the aim of this systematic review was to gather all available and updated important information regarding HNC in Saudi Arabia, and highlight the gaps of knowledge in our country with regard to this disease. In addition, suggestions of solutions to overcome the current status and improve our future standard of care to fight HNC are also highlighted. Materials and Methods The electronic databases PubMed and Google Scholar using English-language literature were used for this systematic review, using specific inclusion and exclusion criteria and keywords. The search was performed in April 2016 and updated in June 2016. Results Our search revealed twenty-one studies that fulfilled our inclusion and exclusion criteria and that were conducted in Saudi Arabia. These studies investigated different aspects of HNC, including prevalence, risk factors, biomarkers, and assessed knowledge and awareness of both public and practitioners with regard to HNC. Conclusions This review uncovered a big gap in our epidemiological data in cancer information in general, and head and neck cancer in particular. In addition, a lack of knowledge and awareness of both the public and health care practitioners hinders the early diagnosis of disease and negatively impact the prognosis, treatment and outcome. The Ministry of Health in Saudi Arabia should develop a more systematic way and adapt policies to gather cancer information in general, and head and neck cancer in particular, from all governmental and private sectors from all over the kingdom, and develop educational programs to raise the knowledge and awareness of HNC in the country.  相似文献   
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A 45-year-old man of Middle Eastern origin, morbid obese, with a body mass index of 39 had an intra-gastric balloon, filled with 500 mL of saline/methylene blue and intended as definite therapy, inserted some 8 wk previously. He was admitted to the emergency department with abdominal cramps. An ultrasound of the abdomen was performed in ER which confirmed the balloon to be in place without any abnormality. He was discharged home on symptomatic medication. Patient remains symptomatic therefore he reported back to ER 2 d later. Computed tomography scan was performed this time for further evaluation which revealed a metallic ring present in the small bowel while the intra-gastric balloon was in its proper position. There was no clinical or radiological sign of intestinal obstruction. Patient was hospitalized for observation and conservative management. The following night, patient experienced sudden and severe abdominal pain, therefore an X-ray of the abdomen in erect position was done, which showed free air under the right dome of diaphragm. Patient was transferred to O.R for emergency laparotomy. There were two small perforations identified at the site of the metallic ring entrapment. The ring was removed and the perforations were repaired. Due to increasing prevalence of obesity and advances in modalities for its management, physicians should be aware of treatment options, their benefits, complications and clinical presentation of the known complications. Physicians need to be updated to approach these complications within time, to avoid life-threatening situations caused by these appliances.  相似文献   
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BACKGROUND: Office-based surgery is commonly practiced in different specialties for a variety of procedures. During these procedures, the health care worker (HCW) is exposed to a large number of pathogens that can be bloodborne, including the hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV). These pathogens can be transmitted through needlesticks or sharp injuries to intact skin or by backsplash of contaminated body fluids onto mucous membranes or injured skin. OBJECTIVES AND CONCLUSIONS: This article reviews the published techniques designed to protect the HCW from such hazards. These techniques are classified into preoperative, intraoperative, and postoperative. Preoperative measures include general protective measures, organization of the surgical field, and consideration of alternative treatments in high-risk patients. Intraoperative techniques deal with safe handling and transferring of sharp instruments, working without using sharps, and protection from backspray injuries. Postoperative measures address proper disposal of used sharps.  相似文献   
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Objectives:To assess the knowledge and attitudes of physicians of different specialties, including psychiatrists, regarding forensic psychiatry to determine whether further modification or training is needed in the psychiatry residency program.Methods:This cross-sectional study was carried out using a 3-page, 3-section questionnaire containing 21 questions disseminated randomly online via Google forms using social media platforms. The 482 participants were residents, specialists, and consultants of various specialties. The study was conducted between September 2020 and August 2021 in various tertiary hospitals across Saudi Arabia.Results:A total of 482 physicians were recruited. The most common age group was 25-35 years, comprising mostly Saudis (62.4%). Based on the results, “poor” and “good” knowledge of forensic psychiatry was identified in 89% and 11% of the physicians, while “negative” and “positive” attitudes were identified in 16.4% and 83.6% of the physicians.Conclusion:Although the perspective of physicians regarding forensic psychiatry was found to be positive, their knowledge of the topic seems to be lacking.  相似文献   
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BackgroundEducation, a key strategy within antimicrobial stewardship programmes (ASPs), has been mainly directed towards healthcare professionals and prescribers more than hospitalised patients.AimTo examine patients’ knowledge and perceptions of antibiotic use and resistance, while evaluating the institutional role of patient education on antibiotic use in two Saudi Arabian hospitals, one with an implemented ASP and one without an ASP.MethodA cross-sectional self-administered survey was developed and piloted. A total of 400 surveys were distributed, 200 within the hospital with an ASP and another 200 within the hospital without an ASP. Data were coded and analysed. Ethical approval was obtained before the start of the study.Findings176 patients responded to the survey with 150 surveys completed and analysed. 78% of patients agreed that they should only take an antibiotic when prescribed by the doctor, however they still tended to keep left over antibiotics for future use. 84% of patients were unaware ‘antibiotic resistance’, with 48% believing that antibiotics help them get better quicker when they had a ‘cold’. Information on antibiotic use and resistance were provided to patients in the hospital with an ASP in contrast to the hospital without an ASP.ConclusionOverall there are poor perceptions regarding antibiotic use and resistance among hospital patients in Saudi Arabia. Patients in the hospital with ASP demonstrated greater knowledge during their hospitalisation. ASPs should not only focus on educating healthcare professionals but should involve the patients and seize the opportunity to educate them while hospitalised.  相似文献   
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ObjectiveThe purpose of this study was to assess the association between hip flexor length and pelvic tilt or lumbar lordosis by quantifying the effect of stretching on pelvic tilt and lumbar lordosis.MethodsWe quantified pelvic tilt and lumbar lordosis before and after a single session of passive hip flexor stretching in a sample of 23 male participants. Changes in hip flexor length were also characterized, using a Thomas test protocol to measure passive hip extension in supine lying. We investigated both the mean effect of the stretching protocol and potential correlations between changes in passive hip extension and changes in pelvic tilt or lumbar lordosis.ResultsFollowing the stretching protocol, there was a mean increase of 2.6° (P < .001) in passive hip extension and a corresponding mean reduction of 1.2° (P < .001) in anterior pelvic tilt. However, there was no change in lumbar lordosis, nor were there any meaningful correlations between change in passive hip extension and change in pelvic tilt or lumbar lordosis.ConclusionThe results suggest that hip muscle stretching may lead to immediate reductions in pelvic tilt during relaxed standing. Such stretching programs could play an important role in interventions designed to improve standing postural alignment.  相似文献   
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