Effects of modified double balloon catheterization for prostatic fluid collection in dogs

엄기동,윤정희,Eom, Ki-dong,Yoon, Jung-hee The Korean Society of Veterinary Science 1998 大韓獸醫學會誌 Vol.38 No.4

개에서 전립선액의 채취를 위한 이중발룬카테터의 효과를 알아보고자 새로이 고안한 이중발룬카테터를 이용하여 추출한 전립선액의 오염여부를 검증하였다. 총21두의 개를 이용하여 전립선액 오염여부에 대한 검증으로서 전립선액, 생검조직 및 요도 관류액중의 요크레아틴 농도측정과 배양검사를 실시하였다. 요크레아틴 농도를 측정한 결과 전립선액(0.028mg/dl)과 조직내(0.66mg/dl)에서 세척관류액(18.71mg/dl) 보다 유의성 있게(p < 0.001) 낮은 농도를 보여 뇨성분의 혼입을 최소화할 수 있는 것으로 평가되었다. 요도부 시료의 배양검사에서 양성결과를 나타낸 12마리중, 이중발룬카테터를 이용하여 전립선액을 채취한 결과 방광으로부터의 오염을 보인 1마리를 제외하고 독립적인 배양결과를 얻을 수 있었으며, 방광 및 요도로부터의 오염방지 효과는 92%를 나타냈다. 이중발룬카테터는 전립선 요도부의 카테터 장착의 용이성 및 요도로부터 오염방지 효과를 갖고 있어 손쉽게 전립선액을 추출할 수 있는 유용한 방법이라고 사료된다.

개의 고관절 변성관절질환의 방사선학적 진단

엄기동,장동우,서민호,정주현,장진화,원성준,정우조,최호정,이기창 한국임상수의학회 2001 한국임상수의학회지 Vol.18 No.3

Radiographic findings of degenerative joint disease (DJD) in the coxofemoral joints were studied in 108 dogs referred to Veterinary Medical Teaching Hospital, College of Veterinary Medicine, Seoul National University. Radiographic findings were identified with a extended ventrodorsal projection. Clinical signs such as pain in the affected joint, exercise intolerance, lameness, crepitation on flexion and extension of the joint and decreased range of motion, were shown in 40% and radiographic changes of bilateral coxofemoral joints were identified in 69% of a group of dogs. There are no sex predilections. Thirty-seven dogs were diagnosed as canine hip dysplasia (CHD; 10 cases), avascular necrosis of the femoral head (Legg-Calves-Perthes disease [LCPD]; 12 cases), fracture of the acetabulum (1 case), luxation(10 cases) and subluxation (15 cases), however, luxation and subluxation were identified in 11 dogs affected with CHD and LCPD. Causes of DJD in others (71case) were not identified. Radio-graphic findings identified included osteophyte formation at the attachment of the joint capsule (70%), sclerosis of the subchondral bone of the cranial acetabular edge (47%), remodeling of the femoral head (34%), thickening of the femoral neck(31%), perichondral osteophyte formation (31%), joint laxity (30%) and so on. All of the dogs diagnosed as CHD were large breed such as Retriever, Germain Shepherd, and Weimaraner and their age was under 1 year. This condition occurred bilaterally in 70% of affected animals. Dogs diagnosed as LCPD were young (under 1 year), small breed dogs. The incidence of LCPD is greater in Yorkshire Terrier, Miniature Pinscher and Poodle. This condition occurred unilaterally in 67% of affected animals. Clinical signs of dogs with unknown cause were shown in 15% and this condition occurred bilaterally in 75% of affected animals. Radiographic findings varied with patient's age and breed, however, the most common finding was osteophyte formation at the attachment of the joint capsule.

추간판 질환 3례에서의 진단영상

엄기동,장동우,서민호,정주현,최호정,이기창,이희천,이영원,최민철 한국임상수의학회 2001 한국임상수의학회지 Vol.18 No.3

Three dogs referred to Veterinary Medical Teaching Hospital, Seoul National University were diagnosed as intervertebral disc disease. Physical examination, neurologic examination, survey radiograph, and myelography were performed in patients. Case 1 showed narrowing intervertebral space and calcified intervertebral disc material in survey radiograph. Case 2 showed increased opacity in the intervertebral opacity in survey radiograph. All of 3 cases showed extradural pattern during myelography. In survey radiography, radiographic signs consistent with intervertebral disc herniations include narrowing of the disc space and the dorsal intervertebral articular process joint space, small intervertebral foramen, increase opacity in the intervertebral foramen and extruded, mineralized disc material within the vertebral canal. Myelography is useful for evaluating the spinal cord and the cauda equina. Indication for myelography includes confirming a spinal lesion seen or suspected on survey radiograph, defining the extent of a survey lesion, finding a lesion not observed on survey radiograph, and distinguishing between surgical and nonsurgical lesion. In presentcases, two of three cases show radiographic signs of IVDD with survey radiograph and all of three case show extradural pattern during myelography. It is observed that intervertebral disc disease is one of the most important indication for radiographic examination and myelography of the vertebral column of small animals.

비타민 D$_3$와 인산칼슘의 토끼 대퇴골 골절치유 효과에 대한 골수강내 정맥 조영술

엄기동,성재기,Um Ki-Dong,Sung Jai-Ki 한국임상수의학회 1993 한국임상수의학회지 Vol.10 No.2

Intraosseous phlebography was performed to determine the healing effect of the dosing treated with vitamin-D$_3$ and/or calcium phosphate on the fractured bone in male rabbits. Femoral shafts of 16 adult male rabbits were fractured and these animals were divided into 3 treated groups and 1 control group l. The 1st treated group of rabbits was dosed with vitamin-D$_3$(VD), the 2nd treated group of rabbits was given calcium phosphate(CP), and the 3.d treated group of rabbits received vitamin-D$_3$ and calcium phosphate. The control group of rabbits was dosed with saline alone. Radiographs were taken weekly in each rabbit over 6 weeks period and the results obtained were as follows. 1. Sinusoidal vein was visualized at 3rd week in eve animal received CP and VC, at 5 week in animals received VD and in control animals. 2. Main nutrient vein was observed more clearly in treated groups than in control group of animals. 3. These results indicate that venous reconstruction of the fractured bone in groups of rabbits received CP and VC was earlier and more complete than those of other groups of rabbits. 4. Therefore, intraosseous phlebography is suitable for determination of the bone healing effect of vitamin-D$_3$ and/or calcium phosphate in femoral fractured rabbits.

흉요추 추간원반탈출증 권에서의 편측 추궁절제술

엄기동,윤정회 한국임상수의학회 1998 한국임상수의학회지 Vol.15 No.2

Lateral laminectomy was performed far spinal decompression in 7 thoracolumbar disc herniated dogs. These dogs showed upper motor neurologic signs including kyphosisi urinary dysfunction, and paraplegia or paralysis in hindlimbs. The lesions were evaluated with myelographic findings and predominated in $T_{12}-T_{13}, T_{13}-L_{1} and L_{1}-L_{2}$ discs. Five dogs which were operated within 48 hours after the onset of paraplegia were recovered from kyphosis and sustained the normal gait and walkings furthermore normal urination and defecation were presented within 3 days of postoperation. One dog was expired with steroid induced intestinal bleeding. The other dog operated on 96 hours after the onset of paraplegia was not recovered from neurologic deficits. Spinal decompression technique was considered to be useful method fur improving neurological problems resulted firom thoracolumbar disc herniation, if dogs are operated on early stage of the onset of paraplegia.

Imaging Diagnosis: Biphasic Synovial Sarcoma in a Dog

엄기동,성윤상,박종임,박희명,정순욱,김재훈 한국임상수의학회 2007 한국임상수의학회지 Vol.24 No.1

An 11-year-old castrated male, Shih-tzu dog was admitted for progressive weight-bearing lameness and mass on the right hindlimb. Radiography and ultrasonography revealed a large well-marginated multinodular mass with mixed echogenicity. On T1 and T2-weighted magnetic resonance imaging (MRI), the mass has a heterogenous signal intensity similar to or higher than muscle. The masses were extended to the pelvic cavity through obturator foramen and displaced the rectum dorsally. It was diagnosed as synovial sarcoma which was composed with mesenchymal and epithelial elements on histopathological findings of the multifocal biopsied specimen. MRI was helpful to determine the definitive margin for surgical resection of the mass. The mass was recurred at the 6th month after surgery. On the 10th month, the patient was euthanasized by owner’s request. 우측 후지가 점진적인 파행을 보이는 11년령의 수컷 시츄견이 내원하였다. 신체검사 결과 부정형의 종괴가촉진 되었다. 방사선 촬영에서는 균질한 연부 조직성 밀도를 보였으며, 초음파 검사에서는 혼합성 에코를 보이는 경계가 명료한 특징을 갖고 있었다. MRI 검사에서는 주변 근육과 비교한 결과 유사 또는 강한 비균질성 신호강도를 보였다. 종괴는 주로 대퇴부 주변에 형성되어 있었다. 일부는 골반뼈 폐쇄구멍을 통해 골반강내에서 직장의 변위를 일으키고 있음이 확인할수 있었다. 병리조직 검사 결과 중간엽 세포와 상피세포로 구성된 활막육종으로 진단되었다. 종괴는외과적으로 적출하였으나, 지속적인 근위축으로 있었으며 인해 파행은 개선되지 않았다. 적출 후 6개월에 종괴가 확인되었으며 점진적으로 그 크기 비대해져 10개월이 되는 시점에서 견주의 요청으로 안락사 하였다. MRI는 활막육종 형성됨이 확인되었으며이 대한특징적인 소견은 내포하고 있지 않지만 종괴의 수술적 적출과 종괴의 범위를 확인하는데있어 유용한 정보를 제공함을 알 수 있었다.

Radiographic and computed tomographic evaluation of experimentally induced lung aspiration sites in dogs

엄기동,Yunsang Seong,박희명,Nonghoon Choe,Jongim Park,Kwangho Jang 대한수의학회 2006 JOURNAL OF VETERINARY SCIENCE Vol.7 No.4

This study was performed to radiographically examine the prevalence of aspiration sites and to evaluate their atomical correlation with the bronchial pattens. Ten healthy beagle dogs were repeatedly radiographed, at weekly intervals, in the left and right lateral, ventrodorsal (VD) and dorsoventral (DV) positions. Three mililiters of iohexol distilled with same volume of saline was infused into the tracheal inlet. Which lung lobe was aspirated was decided upon by the presence of a significant alveolar pattern due to the contrast medium. Alveolar patterns were identified at the left (100%) and right cranial lung lobes (77%) with the dogs in dependant lateral recumbency, at the right caudal lung lobe (71%) with the dogs in VD recumbency and at the right middle lung lobe (59%) with the dogs in DV recumbency, respectively. The anatomical correlation was evaluated by performing computed tomography. The right principal bronchus (165.8 ± 1.6°) was more straightly bifurcated than was the left principal bronchus (142.7 ± 1.8°, p < 0.01). In VD position, the right side lung had a greater opertunity to become aspirated. The ventrally positioned right middle lobar bronchial origin was more easily to be aspirated the other laterally positioned ones. We think that these anatomical characteristics can be one of the causes for aspiration pneumonia to occur more frequently in the right side lung.

동맥관개존중을 보이는 개에서 개흥을 통한 동맥관 결찰술

엄기동,장광호,오태호,이영원,박수원,장동우,윤정희 한국임상수의학회 2002 한국임상수의학회지 Vol.19 No.1

A 6-month-old, intacted male dog was admitted to Seoul Animal Medical Center. The referring veterinarian suspected that the patient might have congenital cardiac problem. It was diagnosed with patent ductus arteriosus(PDA) based on the physical examination, auscultation, radiography, electrocardiography and ultrasonogrphy. After surgical ductus closure, there were improved clinical conditions through by alleviation of atrial fibrilation and left heart enlargement.

개에서 방광내 이행세포암종의 초음파학적 진단

엄기동,오태호,장광호,이영원,장동우,이기창,윤정희 한국임상수의학회 2002 한국임상수의학회지 Vol.19 No.2

Transitional cell carcinoma(TCC) was identified by cytological and ultrasonographic findings in an 11-year-old, intact female Yorkshire terrier with intermittent hematuria for three years. In color-doppler ultrasound images there was marked irregular wall thickness of the bladder surface and well-defined hyperechoic focal lesions within the mass. Active vascular response was observed in the surroundings of hyperechoic lesions.

Correlation of hypoechogenic lesions with lactic dehydrogenase isoenzymes, culture and cytological findings of prostatic fluid and bilpsied tissue in dogs

엄기동,윤정희,성재기,Eom, Ki-dong,Yoon, Jung-hee,Sung, Jai-ki The Korean Society of Veterinary Science 1998 大韓獸醫學會誌 Vol.38 No.3

초음파학적 검사에 따라 미만성 저에코 영역, 낭포, 다병소성 낭포 및 비후된 피막 등 비정상적 소견을 보이는 전립선에서 추출한 전립선액과 생검조직에서의 LDH 분획비(LDH I/V)의 평균치는 각각 $0.92{\pm}0.55$, $2.69{\pm}0.82$, 정상군(각각 $0.23{\pm}0.20$, $0.57{\pm}0.36$)에 비하여 유의성(p<0.01) 있게 높았다. 세포병리학적 검사에서 전립선 비대증 및 전립선염으로 나타난 비정상군($2.76{\pm}0.77$의 생검조직 LDH 평균분획비는 정상군($1.38{\pm}1.19$)에 비해 유의성 있게 높았으나 전립선액에서는 분획비의 유의차가 인정되지 않았다. 배양결과에 따른 전립선액 및 조직시료의 LDH 분획비는 정상군과 비정상군 사이에서의 유의성은 인정되지 않았다. 결론적으로 저에코 영역 및 낭포부위는 생검조직과 전립선액의 배양 및 세포병리학적 검사에 따른 비정상성 및 높은 LDH 분획비와 밀접한 연관성을 보였다. 특히 경직장 초음파상에 나타나는 미만성 저에코 영역은 전립선 비대증 및 만성 전립선염 등과 같은 병적 관련성을 내포하고 있는 것으로 사료된다.