No abstract available.
Creativity ; Education, Medical

Purpose: With the increasing incidence of recompression fractures after vertebroplasty or kyphoplasty, this study analyzed the risk factors that affect the occurrence of recompression vertebral fractures, such as cement distribution, existence of avascular necrosis (Kummell’s disease), type of procedures, bone mineral density, sex, and age. Materials and Methods: Two hundred and thirty-eight patients who underwent vertebroplasty or kyphoplasty at the author’s clinic from 2005 to 2015 were enrolled in this study. The patients were divided into four groups according to the distribution of injected cement. The patients were classified as type 1 and type 2 when injected cement was contacted only to the upper or lower endplate of the body respectively. They were classified as type 3 when both the upper and lower endplates were contacted by injected cement. When neither the upper nor the lower endplate was contacted, the patients were called type 4. This study statistically evaluated the effects of the risk factors, including the cement distribution on the incidence of recompression vertebral fracture after vertebroplasty or kyphoplasty. Results: There were 59 cases (24.8%) of recompression fracture after vertebroplasty or kyphoplasty, among the 238 cases. According to the analysis, the recompression of the vertebral body after vertebroplasty or kyphoplasty occurred more often when the compression fracture was accompanied by osteonecrosis at the body (p<0.05). The patients who had injected cement distributed at both upper and lower plate simultaneously (type 3) had a lower incidence of recompression fracture of the vertebral body after vertebroplasty or kyphoplasty (p=0.008). In addition, the kyphoplasty group had a lower incidence of recompression after the procedure than vertebroplasty group (p=0.02). Conclusion Careful attention should be given to these patients with osteonecrosis at the compression fracture level through a preoperative evaluation. In addition, if the injected cement does not contact both the upper and lower endplates, careful observation is required during the follow-up period based on the high incidence of vertebral recompression fractures proven through this study. Further technical and biomechanical research and efforts will be needed to make the cement contact both endplates.

Medical schools have been working to produce competent doctors and improve the quality of care by introducing and implementing new curricula and innovative teaching and learning methods. Despite these efforts, health disparities within and between countries still exist. To close these gaps, medical schools must identify the priorities of the community, region, and/or nation and conduct education, research, and service that reflect them-the core foundation of the social accountability of medical schools. Many medical schools and networks around the world have tried to achieve social accountability, but this needs more attention in Korea. This study will review the literature in aims to improve understanding and promote the implementation of the social accountability of medical schools. Most medical schools that practice the principles of social accountability focus primarily on the medically underserved in their communities or those who have limited access to health services, and have built collaborative partnerships with stakeholders to meet the needs of society. In addition, in order to implement social accountability effectively and efficiently, medical schools have developed strategies and various evaluation frameworks appropriate to the context of each school. To have more socially accountable medical schools, it is necessary to clarify the concept of social accountability and to establish a system that can evaluate the impacts. Medical schools exist to alleviate suffering and promote health, and this can be accomplished through social accountability.

PURPOSE: The aim of this study was to evaluate the effectiveness and indication of radiofrequency ablation(RFA) using renal VX2 tumors by implantation of VX2 tumor cells under the renal capsule in rabbits. MATERIALS AND METHODS: Ten rabbits were injected with 30-40microliter VX2 tumor cells(1.2x10(7) viable cells/ml) under the renal capsule of the right kidney by right subcostal incision. On the 14th day after the tumor cells were implanted, we checked for the development of renal tumors, and the sizes and shapes(exophytic or central) of the tumors by the use of computed tomography. We performed RFA in the renal VX2 tumors with a 17G StarBurst electrode through kidney exposure. After the first and third day following RFA, renal function was checked. On the third day, we performed CT and harvested the kidneys for gross and microscopic evaluation. RESULTS: We confirmed the development of renal VX2 tumors in nine cases. Tumor shapes were exophytic in seven cases and central in two cases; the mean size of the tumors was 2.1 cm(range, 1.1-3.8cm). In all tumors, RFA was performed. From the use of enhanced CT after RFA on the third day, all of the lesions treated with RFA showed no enhancement. From the pathological findings, coagulative necroses were seen on all of the lesions treated with RFA. The necrotized tumor size after RFA was not different statistically as measured by CT and a pathological examination (p=0.833) CONCLUSIONS:: In centrally located renal tumors, we experienced thermal injury in pelvocalyceal systems. RFA is an effective method for nephron sparing surgery as the tumor cells completely disappear and there is preserved renal function and the procedure is easy to apply. We suggest that the RFA method for exophytic renal tumors is more effective than other procedures.
Rabbits ; Animals

Allergen-specific immunotherapy (AIT) can alter the natural course of an allergic disease. It is widely held that the efficacy of a given therapeutic modality should be proven by well-designed double-blind placebo-controlled randomized clinical trials and meta-analyses. In this article, the therapeutic efficacy of AIT for allergic respiratory diseases, such as allergic rhinitis and asthma, is reviewed. In addition, potential clinical and experimental predictors of the treatment response are reviewed for AITs requiring long-term treatment, and for some allergic rhinitis and asthma patients who show no response to AIT.

Allergen-specific immunotherapy (AIT) can alter the natural course of an allergic disease. It is widely held that the efficacy of a given therapeutic modality should be proven by well-designed double-blind placebo-controlled randomized clinical trials and meta-analyses. In this article, the therapeutic efficacy of AIT for allergic respiratory diseases, such as allergic rhinitis and asthma, is reviewed. In addition, potential clinical and experimental predictors of the treatment response are reviewed for AITs requiring long-term treatment, and for some allergic rhinitis and asthma patients who show no response to AIT.

Although allergen-specific immunotherapy (AIT) is a standard treatment for allergic diseases, only 5% or less of patients in whom AIT is indicated have been receiving immunotherapy because AIT needs a long-term therapeutic duration of up to 5 years. To overcome this limitation of conventional AIT, Kündig and his colleagues first introduced intralymphatic immunotherapy (ILIT) in patients with allergic rhinitis, publishing their results in 2008. Since then, 10 clinical trials that evaluated therapeutic efficacies and adverse effects of ILIT have been conducted. This article reviews the clinical trials of ILIT and suggests unmet needs in research fields of ILIT.

OBJECTIVES: Organizations have recently introduced Employee Assistance Programs (EAPs) to promote work performance by helping employees to solve their current problems and reduce stress levels. This cross-sectional, retrospective study was conducted to measure features of work performance among EAP users in Korea. METHODS: Measurements were taken by employee surveys and employee records. Lost productivity time, job/organizational involvement, and job satisfaction were measured among 332 EAP users in ten organizations in Korea, which had introduced EAPs as of 2009. EAP users responded to measurements after one to three months after enrollment in EAP counseling service. A convenience sample of 297 workers, who had not used an EAP counseling service during the study period, was used as a comparison group. RESULTS: Compared with non-users, the EAP users showed more presenteeism (53.22 vs. 47.63 hours per four weeks, p=0.025) and more total lost productivity time (p=0.020). Job satisfaction was correlated with presenteeism. CONCLUSION: EAP users showed decreased productivity. It would appear that EAP counseling is a useful program for those who are present at workplace but suffering from decreased performance due to personal stress. This study indicates the need for a prospective outcome study to assess the economic and clinical value of EAPs.
Absenteeism ; Counseling ; Efficiency ; Employment ; Humans ; Job Satisfaction ; Korea ; Outcome Assessment (Health Care) ; Retrospective Studies ; Stress, Psychological

No abstract available.
Female ; Luteal Phase*

PURPOSE: Surgical hemorrhoidectomy has a reputation for being a painful procedure. Many surgical methods have been devised for reducing posthemorrhoidectomy pain. Nevertheless, the result are unsatisfactory. Stapled hemorrhoidectomy is performed without leaving painful perianal wounds. The aim of this study was to assess any benefits, compared among three hemorrhoidectomy methods. METHODS: A total of 150 consecutive patients with 3rd and 4th degree of prolapsed hemorrhoids underwent hemorrhoidectomy with stapler group (n=50) or hemorrhoidectomy with ultrasonic dissector group (n=50) or Milligan's hemorrhoidectomy using by diathermy (n=50) (by same surgeon between January and September 2001). We evaluated the difference among three techniques in operative time, postoperative pain, and patient satisfaction (using visual analogue scale). RESULTS: Mean operative time for hemorrhoidectomy with ultrasonic dissector was 19 minute; for stapler group, it was 18 minute; for Milligan's group, it was 23.6 minute (P<0.05). There was significant difference in operative time between stapler and Milligan's group. There were significant difference in pain measurement reported on immediate (5.8 for stapler, 7.2 for ultrasonic dissector, and 9.2 for Milligan's group, P<0.01), day 1 (4.3, 5.5, and 6.8, P<0.01), day 2 (3.7, 4.7, and 6, P<0.01), day 3 (3.0, 3.6, and 4.6, P<0.01), day 4 (3.1, 3.5, and 4.6, P<0.01), day 5 (2.5, 3.4, and 4.6, P<0.01), day 6 (2.0, 3.2, and 4.3, P<0.01), day 7 (1.8, 3, and 4.2, P<0.01), and defecation (4.0, 7.0, and 8.9, P<0.01). The mean analgesic (piroxicam 20 mg) requirement was 0.3 times for stapler, 1.9 for Ultrasonic dissector, and 3.1 for Milligan's group (P<0.01). Mean hospital stay was 1.6 days for stapler, 1.7 for ultrasonic dissector, 2.8 for Milligan's group (P<0.01). Patient satisfaction on day 7 was 8.2 for stapler, 6.2 for ultrasonic dissector, and 5.2 for Milligan's group (P<0.01). There was no difference in catheterization for urinary retention. It is probably due to spinal anesthesia. CONCLUSION: The study demonstrates significantly reduced postoperative pain and shorter hospital day after stapled hemorrhoidectomy compared among three groups. This resulted in an earlier return to working activities for stapled technique.
Anesthesia, Spinal ; Catheterization ; Catheters ; Defecation ; Diathermy ; Hemorrhoidectomy* ; Hemorrhoids ; Humans ; Length of Stay ; Operative Time ; Pain Measurement ; Pain, Postoperative ; Patient Satisfaction ; Return to Work ; Ultrasonics* ; Urinary Retention ; Wounds and Injuries