• Journal of Chest Surgery
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• 제51권1호
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• pp.15-21
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• 2018

Background: Prosthetic valve endocarditis (PVE) is a serious complication of cardiac valve replacement, and many patients with PVE require reoperation. The aim of this study was to review our institutional 20-year experience of surgical reoperative valve replacement in patients with PVE. Methods: A retrospective study was performed on 84 patients (mean age, $54.8{\pm}12.7years$; 51 males) who were diagnosed with PVE and underwent reoperative valve replacement from January 1995 to December 2016. Results: PVE was found in 1 valve in 61 cases (72.6%), and in 2 or more valves in 23 cases (27.4%). The median follow-up duration was 47.3 months (range, 0 to 250 months). Postoperative complications occurred in 39 patients (46.4%). Reinfection occurred in 6 cases, all within 1 year. The freedom from reinfection rate at 5 years was $91.0%{\pm}3.5%$. The overall survival rates at 5 and 10 years were $64.4%{\pm}5.8%$ and $54.3%{\pm}7.3%$, respectively. In stepwise multivariable Cox proportional hazard models, older age (hazard ratio [HR], 1.48; 95% confidence interval [CI], 1.05 to 2.10; p=0.027) and cardiopulmonary bypass (CPB) time (HR, 1.03; 95% CI, 1.00 to 1.01; p=0.033) emerged as independent risk factors for death. Conclusion: Older age and a longer CPB time were associated with an increased risk of overall mortality in PVE patients.

• 식물병연구
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• 제12권1호
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• pp.28-31
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• 2006

최근 감자 바이러스의 발생 양상은 과거에는 PLRV의 이병율이 높았으나 현재에는 PVY의 발생이 많아지고 있는 추세인데 이는 '대서'와 '추백' 같은 감수성 품종의 재배 면적의 증가와 바이러스 이병율이 높은 재배 환경에서의 채종 때문일 것이다. 특히 2기작 감자 포장에서의 당대 감염율을 보더라도 '대서'와 '추백'의 이병율이 높아 감수성 품종으로 '수미'와 '대지'는 이병율이 비교적 낮아 저항성으로 나타났다. 또한 2기작 감자 재배지대에서 PVY에 감수성인 '추백' 품종의 안전한 씨감자 생산을 위해서 주위에 일반감자 재배가 없는 격리가 양호한 환경에서의 채종과 그렇지 못한 환경에서의 채종을 비교하여 재감염 정도를 조사하였는데 조직 배양후 2세대 걸친 노지 재배에서 바이러스 이병율이 약 3배의 차이를 보여 씨감자 생산에서 채종 환경의 중요성을 입증한 결과로 판명되었다.

• 원예과학기술지
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• 제33권6호
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• pp.891-899
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• 2015

본 연구는 자생나리에 있어서 기내 인편삽의 계대배양이 lily symptomless virus(LSV) 제거에 미치는 영향과 구근 재배 조건이 LSV 재감염에 미치는 영향을 구명하여 LSV 무병주 대량 생산을 위한 기초자료를 제공하기 위하여 실시되었다. 식물재료로는 날개하늘나리(L. dauricum), 말나리(L. distichum), 참나리(L. lancifolium), 중나리(L. maximowitzii)등 자생나리 4종을 사용하였다. LSV에 감염된 식물체의 인편에서 소인경을 얻은 다음 이들 소인경을 5회 이상 계대배양을 했을 때 LSV가 완전히 제거되었다. 특히 날개하늘나리와 말나리에서는 1회 기내 인편삽으로도 LSV를 완전히 제거할 수 있었다. 그러나 기내배양을 통해 생산된 LSV 무병주라도 구근의 재배기간이 길수록, 봄 정식구보다 가을 정식구에서, 소식구보다 밀식구에서, 해안지역보다는 내륙 지역에서 재감염률이 높았다. 그리고 재감염률은 중나리가 날개하늘나리와 참나리보다 높았다. LSV 감염주는 무병주에 비해 엽록소 함량이 낮았다. 따라서 자생나리 구근의 수회 계대배양을 통해 LSV를 제거할 수 있으며, 구근 생산과정에서 낮은 재식밀도, 봄 정식, 해안지역 정식 등 재배적 방제를 통해 LSV 재감염을 억제할 수 있을 것이다.

• 대한한의진단학회지
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• 제19권3호
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• pp.185-193
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• 2015

Objectives The purpose of this report is to represent decubitus ulcer(pressure sore) improved by carbon arc and oriental medicine. Methods Patients with decubitus ulcer were treated with carbon arc, acupuncture, herbal medicine and simple dressing. Laser was irradiated at ulcer site once a day for 5 hour, using cored carbon number 3000,3002. Simple dressing with wound cleansing was performed to prevent reinfection. Herbal medicine and acupuncture treatment were applied to improve patients' general condition. Ulcer sizes and aspects were carefully checked by one week. Results Sizes of the decubitus ulcer decreased. Stage of ulcer was improved from stage 3 to stage 2. These results show that carbon arc may play a role in treating the decubitus ulcer with oriental medicine.

• 한국임상수의학회지
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• 제17권2호
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• pp.438-442
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• 2000

Stump pyometra is defined as a reinfection or inflammation of uterine remnant after ovariohysterectomy. We surveyed four bitches which were serviced in the veterinary medical teaching hospital of Seoul National University. In this Paper we studied the method for diagnosis of stump pyometra by symptoms, blood tests, and ultrasound films. To detect the stump pyometra is difficult because clinical signs are verb similar to the normal pyometra. Especially symptoms could noticed be noticed even by their owner until dogs have a vaginal discharge. Blood test also were in normal range in each item except in the elevation of the number of while blood cells. We conclude ultrasonic observation add experimental laparotomy has a significant meaning to diagnosis the stump pyometra.

• Journal of Chest Surgery
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• 제49권1호
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• pp.50-53
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• 2016

A 49-year-old female presented with severe dyspnea. She was diagnosed with cardiac tamponade combined with ascending aortic pseudoaneurysm and rupture, which was caused by Klebsiella pneumoniae infection. This extremely rare condition was managed by an emergency pericardiostomy and two separate aortic operations. Antibiotics active for the K. pneumoniae isolate were used throughout. The patient was well for nine months after discharge and continues to be followed up for signs of possible reinfection.

• Parasites, Hosts and Diseases
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• 제40권4호
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• pp.191-193
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• 2002

Oriental liver fluke (Clonorchis sinensis) infection was surveyed among residents of Hamyang-gun, Gyeongsangnam-do, Korea during the period of January 2001 to March 2002. Total 1,041 stool samples were collected from residents who visited Public Health Center and its branches in Hamyang-gun and examined using formalin-ether sedimentation method. The overall egg positive rate was 16%, male showing higher positive rate (21%) than female (10%). The age group of 30 to 50 years had the highest egg positive rate of C. sinensis from 20% to 22%. The positive examinees were treated with praziquantel and educated individually to prevent reinfection . Egg positive rate in this area was decreased when compared with results recorded in the past, however, still remained more than 10%. This study suggests that periodic examination, treatment as well as education of residents should be continued and systematized.

• Parasites, Hosts and Diseases
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• 제39권3호
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• pp.227-232
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• 2001

Eight dogs were experimentally infected with Sarcocystis by oral inoculation of cardiac muscle from naturally infected cattle. The infected dogs commenced discharging of sporocysts in the feces after 10 to 12 days of inoculation, and continued until 20 and 35 days after inoculation. Three dogs were reinfected with cardiac muscle from the naturally infected cattle. Sporocysts reappeared in the feces on 12 to 13 days after reinfection. Sarcosystis sporocysts collected from the experimentally infected dogs were fed to each of the two 30-day-old Korean native calves. The infected calves remained clinically normal, except for the high fever (${\geq}{\;} 40^{\circ}C$) and decreased hematocrit values on day 30 to 40 post inoculation. Muscular cysts of Sarcocystis were found from infected calves on day 40 post inoculation. Proliferative forms of Sarcocystis were also observed in the muscle of infected calves. These results suggest that the Sarcocystis cruzi found in Korean native cattle has a 2-host life cycle with dogs as the definitive host and Korean native calves as the intermediate host.

• 대한치과의사협회지
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• 제51권12호
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• pp.630-636
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• 2013

During the past decade, the use of osseointegrated implants as a foundation for prosthetic replacement of missing teeth has become highly predictable and successful. SPT(Supportive Periodontal Therapy) identified as regular visits to the therapist for periodontal control and maintenance in a well-organized scheme, the number of appointments per year following a pre-designed subject-tooth/implant-site risk assessment method. Peri-implant disease was a frequent finding in subjects having natural healthy dentition and in subjects without periodontitis. Supportive periodontal program were found to be strongly related to implant survival. This study demonstrates that regular maintenance reduces the risk for peri-implant inflammation significantly as compared with irregular maintenance. This underlines the value of the SPT in enhancing the long-term outcomes of implant therapy, particularly in subjects affected by periodontitis, in order to control reinfection and limit biological complications. It is highly recommended to maintain implant patients under a strict supportive periodontal treatment protocol that might contribute to implant survival, and regular maintenance reduces the risk for periimplant inflammation significantly as compared with irregular maintenance. Ideally, patients may be informed on the beneficial effect of a regular patient-related post-therapy care before implant insertion.

• Tuberculosis and Respiratory Diseases
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• 제77권4호
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• pp.172-177
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• 2014

Background: Pseudomonas aeruginosa infection is particularly associated with progressive and ultimately chronic recurrent respiratory infections in chronic obstructive pulmonary disease, bronchiectasis, chronic destroyed lung disease, and cystic fibrosis. Its treatment is also very complex because of drug resistance and recurrence. Methods: Forty eight cultures from 18 patients with recurrent P. aeruginosa pneumonia from 1998 to 2002 were included in this study. Two or more pairs of sputum cultures were performed during 2 or more different periods of recurrences. The comparison of strains was made according to the phenotypic patterns of antibiotic resistance and chromosomal fingerprinting by pulsed field gel electrophoresis (PFGE) using the genomic DNA of P. aeruginosa from the sputum culture. Results: Phenotypic patterns of antibiotic resistance of P. aeruginosa were not correlated with their prior antibiotic exposition. Fifteen of 18 patients (83.3%) had recurrent P. aeruginosa pneumonia caused by the strains with same PFGE pattern. Conclusion: These data suggest that the most of the recurrent P. aeruginosa infections in chronic lung disease occurred due to the relapse of prior infections. Further investigations should be performed for assessing the molecular mechanisms of the persistent colonization and for determining how to eradicate clonal persistence of P. aeruginosa.