• Journal of Chest Surgery
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• 제26권4호
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• pp.320-324
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• 1993

Congenital cystic adenomatoid malformation [CCAM] of the lung is extremely rare. The patient was 10 year old female and had no specipic signs and symptoms except right lower chest pain for 5 days ago before admission.On simple chest X-ray and thoracic CT scan, about 9x8x8cm sized, heterogenous marginal enhanced multiseparated hypodence lesion with air fluid level and gas bubbles in posterior pleural space in right lower chest .The culture result of needle aspiration of cavity was apergillus flavus. Right lower lobectomy was carried out and the result of biopsy was congenital cystic adenomatoid malformation.

• Journal of Korean Neurosurgical Society
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• 제56권6호
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• pp.521-526
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• 2014

The authors report a case of symptomatic epidural gas accumulation 2 weeks after the multi-level lumbar surgery, causing postoperative recurrent radiculopathy. The accumulation of epidural gas compressing the dural sac and nerve root was demonstrated by CT and MRI at the distant two levels, L3-4 and L5-S1, where vacuum in disc space was observed preoperatively and both laminectomy and discectomy had been done. However, postoperative air was not identified at L4-5 level where only laminectomy had been done in same surgical field, which suggested the relationship between postoperative epidural gas and the manipulation of disc structure. Conservative treatment and needle aspiration was performed, but not effective to relieve patient's symptoms. The patient underwent revision surgery to remove the gaseous cyst. Her leg pain was improved after the second operation.

• 대한기관식도과학회지
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• 제4권2호
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• pp.240-243
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• 1998

Subcutaneous emphysema is an unusual and rarely reported complication of tonsillectomy. The more commen complications are hemorrhage, infection and following anesthesia, aspiration, cardiac arrhythmia, and laryngeal trauma can occur. Posttonsillectomy subcutaneous emphysema results directly from the introduction of air into the tonsillar bed either during the surgical procedure itself or in the postoperative period. This condition is generally benign and self limiting and usually requires treatment only for the primary respiratory disease. In this report, we describe a 40-year-old female patient in whom subcutaneous emphysema developed shortly after tonsillectomy. She was observed for 5 days, at which point subcutaneous emphysema was seen on the follow up soft tissue neck X-ray to disappeared.

• Journal of Chest Surgery
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• 제18권4호
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• pp.582-588
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• 1985

We have observed 165 cases of spontaneous pneumothorax from Aug. 1978 to May. 1985 at the department of Thoracic and Cardiovascular Surgery, School of Medicine, Keimyung University. The ratio of male to female cases were 8.2:1 in male predominance, and the incidence was highest in the adolescence between 21 to 30 year of age. There were 85 patients of primary spontaneous pneumothorax and 80 patients of secondary spontaneous pneumothorax. The etiologic factors of secondary spontaneous pneumothorax were tuberculous origin in 50 cases, chronic bronchitis with emphysematous bullae or blebs in 17 cases, asthma in 10 cases and lung cancer in 3 cases. Closed thoracotomy was performed for reexpansion of collapsed lung in 153 cases, bed rest in 3 cases, needle aspiration in 5 cases and open thoracotomy in 14 cases. Closed thoracotomy was the main therapeutic approach of choice in the great majority of spontaneous pneumothorax with recurrence rate of 21.6%. However, open thoracotomy was undertaken in patients with continuous air leakage, recurrent episodes, bilateral pneumothorax and large visible apical blebs or bullae.

• The Korean Journal of Pain
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• 제1권2호
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• pp.203-206
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• 1988

1) 통증치료 목적으로 실시한 308경막외 천자 중 원치 않는 경막천자를 일으킨 경우가 5회(1.6%)있었다. 2) 경막천자를 일으킨 5예 중 2예에서는 뇌척수액이 흡입되어 천자당시 알 수 있었으나 나머지 3예에서는 국소마취제 주사 후에 나타나는 척추마취 증상으로 경막천자를 추축할 수 있었다. 3) 뇌척수액이 흡입되지 않은 3예 중 1예에서는 추궁절제술 후 주위조직의 유착으로 인한 경막외강의 신축성 소실 또는 잠재공간의 감소를 일으켜 경막외 주사시의 압력에 의해 경막손상을 입었으리라는 추측이 가능하였고 1예에서는 조직편에 의한 주사침의 폐쇄로 실질적인 경막천자후 뇌척수액 흡입이 음성이었던 것으로 추출되었다. 나머지 1예에서는 경막천자를 의심할만한 이유가 없었으나 나타나는 증상에 의해 경막천자를 의심하였다. 이상의 결과로 보아 경막외 차단 중에는 숙련된 술자에 의해서도 원치않는 경막차단이 일어날 수 있고 특히 뇌척수액의 흡입이 음성인 경우에도 경막천자가 가능하므로 술자에게는 고위 및 전척추마취에 대한 충분한 예비지식 및 응급소생술을 포함한 대처방안이 미리 마련되어 있어야 하고 환자에게 시술전 그 가능성을 인지시켜야 하며 외래 환자의 경우 보호자와 동반 하지 않은 경우는 시술을 될 수록 피하는 것이 좋을 것으로 사료된다.

• Clinical and Experimental Pediatrics
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• 제50권4호
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• pp.323-327
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• 2007

Although most clinicians now agree that sinusitis can afflict children of all ages, appropriate diagnosis remain controversial. Sinusitis is one of the most challenging diagnoses for a clinician, because there is a lack of validated diagnostic criteria for acute rhinosinusitis. Symptoms generally include nasal congestion, purulent nasal discharge, and cough .The physical examination is often unsuccessful in confirming the diagnosis. If purulent discharge is seen oozing from the middle meatus, the diagnosis of acute rhinosinusitis is almost certain. Purulent drainage may also be seen in the posterior pharynx and accompanied by halitosis. Absence of light by transillumination may indicate acute rhinosinusitis. Imaging studies are not necessary to confirm the diagnosis of sinusitis in children younger than 6 years and should be used sparingly in children older than 6 years. Sinus radiographs still have several advantages over CT scanning including the relatively low cost and the ability to obtain films without the use of sedation in younger children. Positive findings of sinusitis on plain film include air-fluid levels, complete opacification, or mucosal thickening greater then 4 mm. The CT scan however, is significantly more sensitive then plain films in detecting these abnormalities. Although recovery of bacteria from a sinus aspiration is considered reference standard for diagnosis in pediatric rhinosinusitis, its routine used by pediatricians is not practical and therefore is not recommended.

• Korean Journal of Radiology
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• 제20권1호
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• pp.166-170
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• 2019

Objective: To establish a cost-effective and easily available phantom for training residents in ultrasound-guided fine needle thyroid nodule targeting punctures. Materials and Methods: Tofu, drinking straws filled with coupling gel, a urine tube, and 21-gauge needles were used to generate a phantom thyroid with nodules for training. Twelve radiology residents were involved in the study. The puncture success rates were recorded and compared before and after phantom training using the Wilcoxon signed-rank test. Results: On ultrasonography, tofu mimicked the texture of the thyroid. Drinking straws filled with coupling gel mimicked vessels. The urine tube filled with air mimicked the trachea, and 21-gauge needles mimicked small nodules in the transverse section. The entire phantom was similar to the structure of the thyroid and surrounding tissues. The puncture success rates of radiology residents were significantly increased from 34.4 ± 14.2% to 66.7 ± 19.5% after training (p = 0.003). The phantom was constructed in approximately 10 minutes and materials cost less than CNY 10 (approximately $ 1.5) at a local store. Conclusion: The tofu model was cost-effective, easily attainable, and effective for training residents in ultrasound-guided fine needle thyroid nodule targeting punctures in vitro.

• Journal of Chest Surgery
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• 제27권3호
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• pp.226-229
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• 1994

VATS is now used by many thoracic surgeons and in various anatomic locations such as lung parenchyme, pleura and mediastinum, etc. VATS of mediastinal masses has special characteristics compared to that of other diseases. Those are no positional changes of the mass during collapse of the lung and close proximity of the mass to major vascular structures, nerves and other vital organs. From 1992. July to 1993. August, 10 mediastinal masses were treated with video assisted thoracoscopy. There were five males and five females, ages ranged from 11 years to 65 years with average 37.7 17.7 years old. Of the 10 patients, 4 were bronchogenic cysts, 2 were teratoma, and the others were thymoma, neurilemmoma, pericardial cyst, and thymic cyst. Needle aspiration was done in large cysts and the working thoracotomy[or utility thoracotomy] was done in large solid masses for the purpose of easy dissection, easy handling and easy delivery of the mass. The average operation time were 155.6 6.8 minutes and the duration of air leakage were 1 2.2 days. The duration of the chest tube drainage were 3.3 2.6 days. The lengths of the postoperative hospitalization were 5.1 2.7 days which were shorter than those of 12 mediastinal masses treated with conventional thoracotomy during the same periods [p<0.05]. There was 1 patient converted to thoracotomy because of a bleeding at innominate vein. 3 postoperative complications were occured. Those were persistent air leakage for 7 days, diaphragmatic palsy and hoarseness which were recovered within 1 month. We conclude that mediastinal mass can be excised with video assisted thoracoscopy and the posthospitalization is reduced. But careful attention is required for avoiding injury to major vascular structures, nerves, and other vital organs.

• 말소리와 음성과학
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• 제14권3호
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• pp.11-25
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• 2022

From simultaneous recordings of the external photoglottography, intra-oral air pressure (P_io), airflow and acoustic data from four native Seoul Korean speakers (2 male and 2 female), we have found that the two fricatives are not significantly different in glottal opening peak and airflow peak height either word-initially or word-medially and that the duration of aspiration is significantly reduced in word-medial /s/, compared to those in word-initial /s/, not in /s'/. We have also found that the duration of a high P_io plateau is significantly longer in /s/ than in /s'/ both word-initially and word-medially and that airflow resistance (R=P_io/U) at the onset and offset of a P_io plateau and at the time of airflow peak height is significantly higher in /s'/ than in /s/ across the contexts. However, the differences in P_io peak and F0 are not significant. In addition, the transition time to reach airflow peak height from the offset of a P_io plateau is found to be significantly longer in /s/ than /s'/ in both word-initial and word-medial positions. No significant differences in glottal opening peak and airflow peak height confirm that /s/ is specified as [-spread glottis] like /s'/. As for the other significant differences, we propose that /s/ is [-tense], and /s'/ [+tense].

• 한국가축번식학회지
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• 제17권2호
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• pp.149-157
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• 1993

소 초기배의 체외생산을 위한 소 난포란 회수를 극대화할 수 있는 방법을 확립하기 위해 여러 가지 방법에 의해 채취된 난자의 발생능력을 검토하였다. 전통적인 흡입법(대조구), 개발된 회수법(slicing) 및 이들을 결합한 방법(결합법)을 비교하였다. 총 245개의 난소로부터 1,641개의 난포란을 실험에 이용하였다. 회수된 난자는 TCM199과 소 태아혈청을 기초로 한 배양액에서 24시간 체외성숙시켜 급속염색법에 의해 핵성숙을 판별하고, 7% 에탄올에 의해 활성화된 처녀발생란의 전핵형성 유무에 의해 세포질 성숙을 평가하였다. 회수된 평균 난자수는 난소당 흡입법, slicing 및 결합법이 각각 1.87, 11.05 및 7.88개를 얻어 새로 개발된 slicing에 의해 회수율을 5.9배 (11.05/1.87) 증가시킬 수 있었다. 핵 성숙은 흡입법 92.9%, slicing 79.1%와 결합법 71.7%였다. 비록 흡입법에 의해 회수된 난자의 핵 성숙율이 높았지만 난소당 얻을 수 있는 성숙 난자의 수는 slicing할 경우 5배까지 증가시킬 수 있었다. 세포질 성숙의 지표인 전핵의 형성율은 대조구 75%, slicing 67%, 그리고 결합법 62.5%였다. 이같은 결과는 개발된 slicing법에 의해 도살장 난소로부터 보다 많은 수의 난자의 회수가 가능하며 이들의 핵성숙 및 세포질 성숙도 정상적으로 일어나며 난소당 전핵 초기배 수를 증가시킬 수 있음을 보여준 것이다. 아울러 증가된 난자수로 인하여 초기배의 생화학적 분석 및 외래유전자의 미세주입을 위한 지속적으로 안정된 초기배의 공급체계가 확립되었다.