• 제목/요약/키워드: Ventricles

검색결과 136건 처리시간 0.028초

Surgical Treatment of Post-Infarction Left Ventricular Free Wall Rupture: Three Cases Review

  • Lee, Hee Moon;Lee, Young Tak;Kim, Wook Sung;Jeong, Dong Seop;Park, Pyo Won;Sung, Kiick
    • Journal of Chest Surgery
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    • 제46권5호
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    • pp.357-361
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    • 2013
  • Left ventricular free wall rupture (LFWR) is rare, but is one of the most serious complications of myocardial infarction and is associated with high mortality. Several operative techniques have been attempted, but early diagnosis and prompt surgical management are crucial for a positive patient outcome. We report three cases of LFWR successfully treated with surgical methods.

비화농성 뇌염을 동반한 개 수두증 1례 (A Case of Canine Hydrocephalus with Nonsuppurative Encephalitis)

  • 한정희;서강문
    • 한국임상수의학회지
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    • 제17권2호
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    • pp.470-474
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    • 2000
  • A Shih Tzu Puppy had clinical onset of anotexia crying and progression of neurological sings when enlargement of the cranial vault at 1 month old and died after showing clinical signs during 2 months period. Radiological and pathological examinations were performed. Radiological findings were homogeneous appearance of the calvaria with cortical thinning, loss of the normal convolutional skull markings and persistent fontanelles. Grossly enlargement of the cranial vault thinning of the bone and defective closure of the fontanelles were also observed. The entire subcortical area of the cerebral hemispheres with severe, dilatation of ventricles and cerebrospinal fluid(CSF) wits absent. There was parenchyma atrophy affecting chiefly in the white mater and the cerebral cortices, axon degeneration and necrosis and gitter cell infiltration in the whiter matter and the subependymal area. Mononuclear perivacular cuffing in the cerebrum and the pons was shown. Based on the radiological, gross and histopathological findings, this case was believed to have congenital hydrocephalus with nonsuppurative encephahitis. Possible etiology on the case is also discussed.

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$\alpha_1$-Adrenergic Effects on Intracellular $Ca^{2+}$, Contraction and L-type $Ca^{2+}$ Current in Guinea Pig Ventricular Myocytes: Role of Protein Kinase C

  • Woo, Sun-Hee;Lee, Chin-Ok
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1997년도 학술발표회
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    • pp.27-27
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    • 1997
  • The effects of $a_1$-adrenoceptor stimulation on intracellular $Ca^{2+}$ ([C $a^{2+}$]$_{i}$ ) transient, contraction, and L-type $Ca^{2+}$ current ( $I_{Ca,L}$) were studied in single cells isolated from ventricles of guinea pig hearts. Phenylephrine, $\alpha$$_1$-adrenergic agonist, (5$\times$10$^{-5}$ ~10$^{-4}$ M) produced a biphasic pattern of inotropism: transient negative response (decrease in contraction by 23.9$\pm$2.5% of control) followed by a sustained positive response (increase in contraction by 60.0$\pm$3.4%, mean $\pm$ SD, n=12).(omitted)ted)

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Staged Repair after Hybrid Palliation for Interrupted Aortic Arch with Systemic Outflow Tract Obstruction

  • Lee, June;Kim, Yong Han;Lee, Cheul
    • Journal of Chest Surgery
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    • 제52권1호
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    • pp.32-35
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    • 2019
  • Surgical management of interrupted aortic arch (IAA) with systemic outflow tract obstruction is clearly a challenge. If both ventricles are adequate, the Yasui operation is a useful option. Otherwise, a staged approach through initial hybrid palliation and delayed biventricular repair, tailored to the degree of obstructed outflow, serves to avoid a high-risk neonatal procedure. Herein, we present a patient with IAA and severe systemic outflow tract obstruction whose treatment involved hybrid palliation, followed by a Yasui operation.

Double Outlet Right Ventricle: In-Depth Anatomic Review Using Three-Dimensional Cardiac CT Data

  • Hyun Woo Goo
    • Korean Journal of Radiology
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    • 제22권11호
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    • pp.1894-1908
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    • 2021
  • Double outlet right ventricle (DORV) is a relatively common congenital heart disease in which both great arteries are connected completely or predominantly to the morphologic RV. Unlike other congenital heart diseases, DORV demonstrates various anatomic and hemodynamic subtypes, mimicking ventricular septal defect, tetralogy of Fallot, transposition of the great arteries, and functional single ventricle. Because different surgical strategies are applied to different subtypes of DORV with ventricular septal defects, a detailed assessment of intracardiac anatomy should be performed preoperatively. Due to high spatial and contrast resolutions, cardiac CT can provide an accurate characterization of various intracardiac morphologic features of DORV. In this pictorial essay, major anatomic factors affecting surgical decision-making in DORV with ventricular septal defects were comprehensively reviewed using three-dimensional cardiac CT data. In addition, the surgical procedures available for these patients and major postoperative complications are described.

심실내 전도장애 환자에서의 $^{99m}Tc$-RBC Gated Blood-Pool Scintigraphy을 통한 Phase Image Analysis (Phase Image Analysis in Conduction Disturbance Patients)

  • 곽병수;최시완;강승식;박기남;이강욱;전은석;박종훈
    • 대한핵의학회지
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    • 제28권1호
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    • pp.44-51
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    • 1994
  • 연구배경 : 정상적인 자극전도계를 통한 좌심실과 우심실의 전기적 활성은 거의 동시에 일어나지만 심실내에 자극전도 장애가 있는 경우 비정상적인 수축이 있게 된다. 이러한 변화는 자극전달의 속도가 빠르고 복잡하여 정량화 할 수 없었다. 이에 심실내 전도장애가 있는 환자를 대상으로 방사성동위원소 심장풀스캔(radionuclide gated blood pool scan, GBPS)을 이용한 위상분석(phase image analysis)을 통하여 비정상적인 수축정도를 정량화하고자 하였다. 방법 : 심실내 전도장애 환자 및 조기수축증후군환자에서 방사능동위원소 심장풀스캔을 이용하여 심전도상 전도장애를 보인 환자를 대상으로 좌심실 구혈률, 위상각, 위상각의 표준편차, 전체반값폭, 위상각의 범위를 측정하였으며 비정상적으로 수축하는 과정을 위상영상분석을 통하여 심실의 비정상적으로 수축하는 과정을 비교 분석하였다. 결과 : 좌각블록환자에서는 위상각의 포준편차, 전체 반값폭, 위상각의 범위는 정상대조군에 비하여 유의한 차이를 보였으나 우각블록환자에서는 대조군과 차이가 없었다. WPW 증후군환자에서는 위상각의 표준편차와 위상각의 범위는 유의하게 증가하였고 전체반값폭은 정상대조군에 비하여 차이가 없었다. 정상심전도를 보인 환자에서는 위상각의 지연없이 좌심실과 우심실을 거의 동시에 심장수축을 유발하는 것을 관찰한 반면 좌각블록을 가진 환자에서는 RV에 비하여 늦은 LV의 phase을 보였고, 우각블록을 가진 환자에서는 LV에 비하여 늦은 RV phase을 보였다. 또한 WPW 증후군환자의 77%에서 Kent bundle의 위치를 영상분석으로 추정할 수 있었다. 결론 : 이상의 결과로 GBPS의 위상영상분석은 심전도장애 및 조기수축증후군 환자에서 위상영상을 통하여 심장의 활성화 과정을 알아볼 수 있었으며 위상영상히스토그램을 통하여 이를 정량화하여 심실내 전기적 활성의 비동시성 여부를 추적관찰 할 수 있는 비관혈적검사임을 확인하였다.

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심근경색 후 발생한 심실중격결손의 수술 (Repair of Postinfarction Ventricular Septal Defect)

  • 최종범;차병기;이삼윤;최순호
    • Journal of Chest Surgery
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    • 제39권12호
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    • pp.906-912
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    • 2006
  • 배경: 급성 심근경색 후 발생하는 심실중격결손은 드문 치명적인 합병증이다. 수술만이 유일한 치료법이나, 그 수술사망률은 아직도 높다. 저자들은 수술 환자들의 수술 결과와 조기사망의 원인을 알아보았다. 대상 및 방법: 1993년 8월부터 2006년 2월까지 급성 심근경색 후 발생한 심실중격결손 환자 8예(남 2예, 여 6예)를 수술하였다. 그중 7예가 좌전하행지의 단혈관질환을 가지고 있었고, 6예는 전중격뿐만이 아니라 후중격까지 넓은 경색을 가지고 있었다. 1예에서 경색과 무관한 관상동맥우회술을 시행하였으며 2예에서 삼첨판 성형술을, 1예에서 승모판 성형술을 같이 시행하였다. 결과: 수술 사망은 3예(37.5%)였다. 사망 환자들은 모두 경색의 범위가 심실의 전중격뿐만이 아니라 후중격까지 넓게 퍼져 있었고 초음파 M-mode 검사에서 좌심실 기저부의 박출률이 생존자들보다 상대적으로 낮았다($34.9{\pm}4.2\;vs.\;54.8{\pm}12.3$; p=0.036). 결론: 심근경색증에 의한 급성 심실중격결손은 대부분 단혈관질환에서 발생하였다. 심장초음파 검사상 좌심실 기저부의 박출률이 낮고 심실중격의 경색 범위가 넓어 후중격까지 진행된 환자에서 조기 사망률이 높았다.

개심술 전후 방사성 동위원소를 이용한 심기능 평가에 관한 연구 -수술전 shunt 의 진단 및 교정수술후의 성적평가에 대하여- (Evaluation of Cardiac Function Using Radioisotope before and after Open Heart Surgery -Detection of Preoperative Cardiac Shunt and Postoperative Remnant Shunt by Nuclear Angiocardiography-)

  • 서경필
    • Journal of Chest Surgery
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    • 제15권2호
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    • pp.194-203
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    • 1982
  • In this investigation we undertook to evaluate the utility of radionuclide cardiac angiography in the detection of cardiac shunts before and after surgical correction. Time-activity curves of ventricles and lungs were evaluated after bolus intravenous injection of 99mTc-human serum albumin in 512 preoperative patients and 551 post-operative patients. Omitting 31 cases of technical failure due to poor bolus, we detected shunts in 459 cases of 481 preoperative evaluations, so the detectability was 95.4%. The cases which couldn`t be detected by this method had small amount of shunt. Also the degree of shunt detected by radioisotope methods were well correlated with oxymetry method. [r=0.89, p<0.01 ] In postoperative evaluations, 18 out of 411 patients with left to right shunt and 10 out of 140 right to left shunt were found to have remnant shunts with radionuclide cardiac angiography. Of the 28 cases with failed operation, 2 were confirmed in reoperation, 2 by cardiac catheterization, 2 by two -dimensional echocardiography. All except one .f these patients had membranous ventricular septal defects and those with left to right shunts had moderate to severe pulmonary hypertension and shunt amount. Also those had larger septal defects than control group. We consider that radionuclide cardiac angiography is a simple and noninvasive method which can show the preoperative diagnosis and postoperative follow up of cardiac shunts.

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좌측 상공정맥을 동반한 삼심방증 1례 보고 (Cor triatriatum with left superior vena cava[Report of a case])

  • 박병순
    • Journal of Chest Surgery
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    • 제18권2호
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    • pp.293-298
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    • 1985
  • Cor triatriatum is a rare congenital malformation of the heart in which a septum stretches in a transverse plane through the left atrium, thus creates two left atrial subchambers. The upper one connects with the pulmonary veins, and the lower connects with the left ventricles. Due to the rarity of, and difficulty in diagnosing car triatriatum, data on the surgery of the disease are of necessity and very limited. A case of cor triatriatum combined with atrial septal defect and persistent left superior vena cava was experienced in November, 1984 in Chonnam University Medical School. There was a transverse septum in the left atrium below atrial septal defect, all pulmonary veins were drained into the upper chamber of the left atrium which connected with the right atrium via atrial septal defect and the lower chamber via an oval opening[8mm] in the abnormal septum and the lower chamber was connected with the left atrial appendage, and the left ventricle via mitral valve. There was persistent left superior vena cava drained to left atrium and coronary sinus. The abnormal transverse septum within the left atrium was completely excised and the atrial septal defect was repaired with Woven Dacron patch. The post-operative course was not eventful and the patient was discharged to home with good result on the 15th postoperative day, and has been in good condition upto now.

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좌심실 비대와 고혈압성 심혈관 합병증: 소아 심장 의사의 관점 (Left Ventricular Hypertrophy and Prelude to Hypertensive Cardiovascular Diseases: from the Pediatric Cardiologist's Point of View)

  • 조민정
    • Childhood Kidney Diseases
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    • 제15권1호
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    • pp.14-21
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    • 2011
  • 좌심실 비대는 심부전, 허혈성 심질환, 부정맥과 같은 심혈관계 질환의 이환율 및 사망률을 높이는 강력한 위험 인자이며 고혈압으로 초래되는 가장 초기 단계의 심장 변화 이기도 하다. 소아청소년 고혈압 환자들은 분명한 심혈관계 합병증 보다는 무증상의 좌심실 비대만 볼 수 있는 경우가 대부분이나 치료하지 않는 경우 성인에서의 심혈관 합병증으로 이행될 위험이 크다. 표적장기 손상의 가장 대표적인 증거이기도 한 좌심실 비대는 소아청소년에서 고혈압 전 단계 상태에서도 나타나므로 고혈압의 진단 당시와 추후의 추적 진료 중 정기적으로 심초음파를 통한 좌심실 질량의 측정이 이루어 져야 한다. 좌심실 비대가 보인다면 적극적인 약물 치료가 또한 이루어져야 한다.