• Title/Summary/Keyword: Infundibulum

Search Result 31, Processing Time 0.024 seconds

POLYCHAETOUS ANNELIDS GROWING IN OYSTER FARMS (굴 양식장 수하연에 부착하는 다모환충류의 분류학적 연구)

  • PARK Eui-In
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.13 no.1
    • /
    • pp.33-44
    • /
    • 1980
  • 부착 생물에 관한 연구는 선박, 해수 이용시설, 수산 양식업 둥의 방제대책과 관련하여 부착 생물의 종류, 부착 량, 성장도 및 계절적 변화 둥의 연구가 중요한 문제하고 생각한다. 특히 양식시설이 밀집한 진해만 해역의 굴 양식 시설에 부착하는 대부분의 생물들이 Ascidicea, Crustacea, Cirripedia, Bivalvia, Bryozoa, Polychaeta, marine algae 등이며, 이들 가운데 피해가 심한 다모환충류에 관하여 분류학적인 연구를 시도하였던 바 수하연의 양식 굴 사이에서 많은 양의 갯지렁이류를 얻었기에 보고 한다. 수하연에 서식하는 갯지렁이류는 제2부착성(Kazihara, 1964)의 갯지렁이류로서 왕관 모양의 큰 아가미 혹은 몸앞 부분에 실모양의 감각 촉수를 가지고 굴에 피해를 입히는 짧은수술갯지렁이 Loimia medusa, 미끈꽃갯지렁이 Myxicola infundibulum와 제1부착성으로서 굴 패각, 양식 시설 등에 석회질의 집을 형성시켜 피해를 입히는 우산관덮개꽃갯지렁이 Hydroides ezoensis, 둥근구멍환덮개꽃갯지렁이 Dexiospira alveolatus 등의 7과 12속 13종을 보고한다. 이 가운데 새날개갯지렁이 Chaetopterus variopedatus와 둥근구멍관덮개꽃갯지렁이 Dexiospira alveolatus는 한국 미기록종이다.

  • PDF

Two chambered right ventricle with anomalous trabecular hypertrophy (이강 우심실 1례 보고)

  • Gwak, Mun-Seop;Lee, Hong-Gyun
    • Journal of Chest Surgery
    • /
    • v.16 no.1
    • /
    • pp.34-39
    • /
    • 1983
  • The syndrome of anomalous muscle bundle dividing the right ventricle into two pressure chambers has been described by many authors. The malformation should not be confused with tetralogy of Fallot itself because the obstructive hypertrophic bands are usually proximal to the right ventricular infundibulum. One case [11 years old male] of double chambered right ventricle due to aberrant muscle bundle with intact ventricular septum is presented. The pressure gradient was 68 mmHg between inflow and outflow tracts of right ventricle on cardiac catheterization. On opening the right ventricle, there noted stenosis of outflow tract by infundibular membrane, hypertrophied anomalous muscle bundle, thickened moderator band & hypertrophied anterior papillary muscle. Open heart surgery was carried out with the aid of extracorporeal support, Anomalous muscle bundle [1.0 cm x 4.0 cm] and infundibular membrane were resected safely. The hypertrophied moderator band was cut at mid-portion and anterior papillary muscle was split vertically. The postoperative course was uneventful and discharged in good condition 2 weeks later.

  • PDF

An Aneurysm Developing on the Infundibulum of Posterior Communicating Artery : Case Report and Literature Review

  • Jang, Woo-Youl;Joo, Sung-Pil;Kim, Tae-Sun;Kim, Jae-Hyoo
    • Journal of Korean Neurosurgical Society
    • /
    • v.40 no.4
    • /
    • pp.293-295
    • /
    • 2006
  • Infundibular dilatation is funnel-shaped symmetrical enlargement that occurs at the origin of cerebral arteries and which is apparent on 7 to 25% of normal angiograms. Infundibular dilatation is frequently considered a normal anatomic variation of no pathologic significance. The authors report a case in which an aneurysm developed on an infundibular dilatation of the posterior communicating artery [PComA]. A 72-year-old woman presented with severe headache, nausea, and vomiting. Digital subtraction angiography showed a saccular aneurysm arising from the origin of the left PComA. Operative findings revealed the aneurysm and infundibular widening of the right PComA. The aneurysm was successfully obliterated. Whether infundibular dilatation is a pre-aneurysmal state or a benign dilatation is controversial. However, we believe infundibular dilatation of the PComA in this case may have served as a pre-aneurysmal lesion.

Transposition of the Great Arteries (TGA) -Report of An Autopsy Case- (대혈관전위증 부검 1례 보고)

  • 김학제
    • Journal of Chest Surgery
    • /
    • v.10 no.1
    • /
    • pp.106-112
    • /
    • 1977
  • Transposition of the great arteries is one of the commonest forms of severe congenital heart disease and produces severe cyanosis threatening survival from the day of birth. Anatomical anomalies which the aorta arises from the infundibulum of the right ventricle and the pulmonary artery arises from the outflow tract of the left ventricle make the deranged circulation. Survival is possible only if additional anomalies are present which allow mixing of the pulmonary and systemic circulations. Preoperative diagnosis as TGA was taken on the 15 day old female via the preoperative examination and the right cordioangiography. As palliative treatment for cyanosis, Blalock-Hanlon operation was performed in this patient. The results were good as 54 mmHg changed from 27 mmHg of $PO_2$ in aorta, but sudden cardiac arrest was developed in postoperative 12 hours. In order to confirm the cause of death and the cardiac anomalies, autopsy was performed on the date of death. The diagnosis of the autopsy showed; [1] Transposition of the Great Arteries. [2] Patent Ductus Arteriosus. [3] Patent Foramen Ovale. [4] Ventricular Septal Defect, 2 Muscular Type. [5] Double Ureter, Right. [6] Artificial Atrial Septal Defect. [7] Total Collapse of the left lung and Intraparenchymal hemorrhage of right lung.

  • PDF

Double-chambered right ventricle -One case report- (이강우심실 -1예 보고-)

  • Jo, In-Taek;Kim, Sang-Hyeong;Lee, Dong-Jun
    • Journal of Chest Surgery
    • /
    • v.19 no.3
    • /
    • pp.515-521
    • /
    • 1986
  • Double-chambered right ventricle [DCRV] is a rare congenital heart disease caused by anomalous muscle bundle traversing the sinus portion of the right ventricle well beneath the infundibulum. Recently we have experienced a case of DCRV with ventricular septal defect in 7-year old male patient. Preoperative cardiac catheterization and cineangiography revealed 80 mmHg pressure gradient between the proximal and distal chamber of the right ventricle and diagonal shape filling defect by the anomalous muscle bundle in the sinus portion of the right ventricle. Resection of the anomalous muscle bundle and patch closure of the ventricular septal defect was performed with cardiopulmonary bypass. The postoperative course was uneventful and excellent.

  • PDF

Results of Two-stage Surgical Treatment of Tetralogy of Fallot (고식적 단락술후 활로 4 징증의 완전교정수술)

  • Lee, Jae-Dong;Han, Seung-Se;Kim, Gyu-Tae
    • Journal of Chest Surgery
    • /
    • v.21 no.1
    • /
    • pp.101-108
    • /
    • 1988
  • Between July, 19S4. and July, 1987, 9 two-stage repair of symptomatic tetralogy of Fallot were carried out at the department of thoracic and cardiovascular surgery, Kyungpook national university hospital. Their age ranged from 5 years to 18 years [mean age 9.4 years] at the time of total correction, and there were improvement of systemic oxygen saturation values by 10% and decrease of hemoglobin by 1.6gm/dl after shunt procedures. The interval between the initial shunting procedure and total correction ranged for 7 to 101 months with a mean of 32.7 months. Four of these patients required patching of the infundibulum alone, three required patching of the right ventricular outflow tract across the pulmonary annulus, and valved conduit was used in one due to coronary artery anomaly. Aortic cross clamping time averaged 122.2minutes [range from 60minutes to 150minutes], and cardiopulmonary bypass time averaged 174.4 minutes [range from 80minutes to 300minutes]. The operative mortality rate was 22% [2/9].

  • PDF

Development of seven secondary neoplasms in a nevus sebaceous: a case report and literature review

  • Kuo, Yi-Wen;Lin, Jung-Chia;Tsai, Wei-Hsuan
    • Archives of Craniofacial Surgery
    • /
    • v.23 no.2
    • /
    • pp.83-88
    • /
    • 2022
  • Nevus sebaceous of Jadassohn is a congenital cutaneous hamartoma with epidermal, sebaceous, follicular, and apocrine structures that usually appears at birth or in early childhood. It has the potential to generate a variety of secondary neoplasms of different lineages, and the risk increases with patient age. Although multiple neoplasms may occasionally arise within the same lesion, the coexistence of more than five secondary tumors is extremely rare. Here we report a case of seven secondary tumors including syringocystadenoma papilliferum, desmoplastic trichilemmoma, sebaceoma, trichoblastoma, pigmented trichoblastoma, sebaceous adenoma, and tumor of follicular infundibulum arising within a nevus sebaceous. The complete diagnosis relies on the histopathological analysis of multipoint biopsies and delicate pathological sections.

Secretory and Sensory Receptor Cells in the Sucker of Korean Octopus minor II (한국산 낙지(Octopus minor) 흡반(Sucker)내 분비 및 감각수용세포 II)

  • Chang, Nam-Sub
    • Applied Microscopy
    • /
    • v.30 no.3
    • /
    • pp.295-301
    • /
    • 2000
  • Five kinds of sensory cells, called A1-, A2-, B-, C-, and D-type cell, respectively, are observed in the epithelial tissue of suker's infundibulum of Cephalopoda, Octopus minor. The A1-type cells lie side by with the B-type cell in the epithelium of sucker's infundibulum. In the A1-type, the nucleus shapes irregularly and the karyolymph appears dark due to its high electron density. The cytoplasm is filled with many vacuoles of various sizes ($0.04\sim0.4{\mu}m$ in diameter), which move to the apical portion of the cell to be secreted via glycocalyx. The A2-type cells are mainly found at the basal portion of the epithelium. The shape of its nucleus is similar to that in the A1-type cell, and the cytoplasm, filiform or in reticular form, shows high electron density. The B-type cell contains an ovoid nucleus and the cytoplasm where lots of vacuoles which resemble the endoplasmic reticulum and electron-dense round granules of various sizes $(0.25\sim0.6{\mu}m)$ are found. The vacuoles and granules are secreted into the free surface via glycocalyx. The C- and D-type cells in simple or stratified layer are observed at the folded portion of the sucker's epithelium. The C-type cell contains a low electron-dense elliptical nucleus, while the D-type cell has an irregular nucleus where beterochromatin is well developed.

  • PDF

Transatrial-Transpulmonary Repair of Tetralogy of Fallot (우심방 및 폐동맥 절개를 통한 활로 4증 교정술)

  • Baek, Wan-Gi;No, Jun-Ryang
    • Journal of Chest Surgery
    • /
    • v.24 no.2
    • /
    • pp.153-160
    • /
    • 1991
  • Tetralogy of Fallot was repaired by a transatrial-transpulmonary approach in 91 of 250 patients treated surgically [including redo operations] between April 1986 and December 1989. Their age ranged from 6 months to 14 years [mean 39.7 months]. Associated cardiovascular anomalies were right aortic arch [n=22], ASD [n=12], PDA [n=5], persistent left SVC [n=5], and others [n=6]. PA index was measured pre-operatively since 1987 to estimate pulmonary artery size and safe total correction[mean 289$\pm$110mm2/BSA]. Eight patients received previous shunt take down procedure concomitantly. Pulmonary arteriotomy was extended through small pulmonary annulus to a minimal distance upon the right ventricular infundibulum and transannular patch was applied in 38 patients [41.3%], in 31 of them monocuspid patch was utilized. pRV/LV was measured at operation room in 77 patients [mean 0.58$\pm$0.36]. Operative mortality was 6.6% [6/91]. The causes of death were low cardiac output [n=5], arrhythmia[n=1] and respiratory failure [n=1]. At follow-up between 12 months and 57 months [mean 30.8 months] most patients were in New York Heart Association class I without cardiac medication. There was no late death, but reoperations were required in 3 patients to relieve residual right ventricular outflow obstruction. Thus successful repair of tetralogy of Fallot can be accomplished in most patients including infants by transatrial-transpulmonary approach and the better result can be anticipated with respect to postoperative right ventricular function and arrhythmia than the conventional transventricular approach.

  • PDF

Factors influencing the prognosis after total correction of tetralogy of Fallot (Fallot 4징증의 근치수술후 예후에 영향을 미치는 요소)

  • Min, Yong-Il;O, Bong-Seok;Lee, Dong-Jun
    • Journal of Chest Surgery
    • /
    • v.20 no.1
    • /
    • pp.71-80
    • /
    • 1987
  • Twenty six patients were operated a total correction of tetralogy of Fallot between Jan., 1984 and July, 1985 at the Dept. of thoracic and cardiovascular surgery, Chonnam University Medical School, and a comparison between the survived group [n = 18] and the dead group [n = B was performed to detect factors influencing laboratory data, cineangiographic findings, operative findings and methods, and pump time. Following results were obtained, 1. There was no significant difference between two groups in the preoperative P.O2 and hematocrit level. 2. The size of the interventricular defect was not related to the operative mortality. 3. There was a significant difference in mortality rate between combined type of stenosis of pulmonary artery, valve and infundibulum and other types of right ventricular outflow tract stenosis. 4. There was a significant difference in mortality rate between the transannular patch reconstruction and other types of operative procedure. 5. There was no significant difference between two groups in total bypass time and aortic time. 6. There was no significant difference between two groups in left ventricular end diastolic volume and right ventricular end diastolic volume. 7. The operative mortality was related to the ratio of the diameter of the pulmonary valve annulus or each pulmonary artery to the ascending or descending aorta in cineangiographic findings, but there was no statistical significance of which probably is due to the lack of the total number of patients.

  • PDF