• Journal of Chest Surgery
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• 제24권11호
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• pp.1098-1106
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• 1991

Atelectasis may be defined as collapse of the lung due to absence of air within the alveoli. It may involve anatomic segments, lobes, or whole lungs but also may be a diffuse miliary process, as in the adult respiratory distress syndrome. The key to treatment are the anticipation and prevention of atelectasis in various clinical situations, the recognition and treatment of underlying disease, and the prompt initiation of vigorous treatment once atelectasis is found. Repeated assessment by physical examination is necessary to determine the presence of atelectasis and its response to treatment. During the period of January, 1981 to October, 1990, 100 patients with atelectasis were treated in the department of Thoracic and Cardiovascular Surgery, Pusan National University Hospital. There were 70 males and 30 females ranging from 3 days to 79 years of age. The occurrence ratio of right to left side was 2.1 : 1. The underlying pathologic lesions of atelectasis were pneumonia with effusion(28), lung ca.(24), pulmonary tuberculosis(24), and chronic empyema(9), The treatment procedure for atelectasis were closed thoracostomy in 26 cases, ressection in 21 cases, therapeutic bronchoscopy in 14 cases and etc.

• Asian Pacific Journal of Cancer Prevention
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• 제15권9호
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• pp.4085-4089
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• 2014

Background: Atelectasis is an important prognostic factor that can cause pleuritic chest pain, coughing or dyspnea, and even may be a cause of death. In this study, we aimed to investigate the potential impact of atelectasis and PET parameters on survival and the relation between atelectasis and PET parameters. Materials and Methods: The study consisted of patients with lung cancer with or without atelectasis who underwent $^{18}F$-FDG PET/CT examination before receiving any treatment. $^{18}F$-FDG PET/CT derived parameters including tumor size, SUVmax, SUVmean, MTV, total lesion glycosis (TLG), SUV mean of atelectasis area, atelectasis volume, and histological and TNM stage were considered as potential prognostic factors for overall survival. Results: Fifty consecutive lung cancer patients (22 patients with atelectasis and 28 patients without atelectasis, median age of 65 years) were evaluated in the present study. There was no relationship between tumor size and presence or absence of atelectasis, nor between presence/absence of atelectasis and TLG of primary tumors. The overall one-year survival rate was 83% and median survival was 20 months (n=22) in the presence of atelectasis; the overall one-year survival rate was 65.7% (n=28) and median survival was 16 months (p=0.138) in the absence of atelectasis. With respect to PFS; the one-year survival rate of AT+ patients was 81.8% and median survival was 19 months; the one-year survival rate of AT-patients was 64.3% and median survival was 16 months (p=0.159). According to univariate analysis, MTV, TLG and tumor size were significant risk factors for PFS and OS (p<0.05). However, SUVmax was not a significant factor for PFS and OS (p>0.05). Conclusions: The present study suggested that total lesion glycolysis and metabolic tumor volume were important predictors of survival in lung cancer patients, in contrast to SUVmax. In addition, having a segmental lung atelectasis seems not to be a significant factor on survival.

• Journal of Chest Surgery
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• 제22권5호
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• pp.857-861
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• 1989

Round atelectasis is an uncommon benign pulmonary condition not relevant to neoplastic or inflammatory lung disease, usually presenting as a peripheral parenchymal round mass density on a chest roentgenogram. Recently, authors experienced one patient with this disease entity associated with spontaneous pneumothorax who was treated surgically with a successful outcome. The case is thought to be the first documented report of round atelectasis in Korea.

• Journal of Chest Surgery
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• 제9권2호
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• pp.109-116
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• 1976

The effects of atelectasis on surface activity of lung extracts were examined in rabbits. Experimental atelectasis was produced in rabbits by artificial pneumothorax and surface tension properties were measured on saline extracts of lung 24 hrs, 48 hrs, one week and four weeks after the induction of pneumothorax. The results were as follows; 1) The minimum surface tension of excised lung extracts 24 hrs after pneumothorax was significantly increased to 28.3 0.41 dynes/cm, and the stability index was significantly decreased to 0.30 from normal value of 0. 87. 2) In the group which was re-expanded 24 hours, later from pneumothorax the surface activity was returned to almost normal range 24 hrs after reexpansion of collapsed lung, 3) When the atelectasis was continued by mechanical means, the extracts of atelectatic lung showed progressive decrease in surface activity, but it was found that surface activity returned to normal level after four weeks even the presence of atelectasis. 4) These observations suggest to us that atelectasis per se does not cause an increase in surface tension of lung extracts, and even in prolonged atelectasis the re-expansion of collapsed lung may be possible when the mechanical cause of atelectasis was excluded.

• Journal of Dental Anesthesia and Pain Medicine
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• 제18권4호
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• pp.271-275
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• 2018

The purpose of this study was to report and discuss the diagnosis and treatment of obstructive atelectasis secondary to pus obstruction in a patient who had developed a maxillofacial abscess, and to review the literature on similar cases. Persistently discharging pus within the oral cavity can act as an aspirate, and may lead to obstructive atelectasis. Additionally, maxillofacial surgery patients should be carefully assessed for the presence of risk factors of obstructive atelectasis, such as, epistaxis after nasotracheal intubation, oral bleeding, and mucus secretion. Furthermore, patients with these risk factors should be continuously followed up by monitoring $SPO_2$, breath sounds, and chest x-ray.

• Tuberculosis and Respiratory Diseases
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• 제42권3호
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• pp.413-418
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• 1995

저자들은 51세의 환자에서 우측 상엽과 하엽에 차례로 무기폐를 일으킨, 면역조직화학적으로 확진된 폐암 육종 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Korean Journal of Radiology
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• 제1권1호
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• pp.33-37
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• 2000

Objective: To describe the radiologic findings of migrating lobar atelectasis of the right lung. Materials and Methods: Chest radiographs (n = 6) and CT scans (n = 5) of six patients with migrating lobar atelectasis of the right lung were analyzed retrospectively. The underlying diseases associated with lobar atelectasis were bronchogenic carcinoma (n = 4), bronchial tuberculosis (n = 1), and tracheobronchial amyloidosis (n = 1). Results: Atelectasis involved the right upper lobe (RUL) (n = 3) and both the RUL and right middle lobe (RML) (n = 3). On supine anteroposterior radiographs (n = 5) and on an erect posteroanterior radiograph (n = 1), the atelectatic lobe(s) occupied the right upper lung zone, with a wedge shape abutting onto the right mediastinal border. On erect posteroanterior radiographs (n = 6), the heavy atelectatic lobe(s) migrated downward, forming a peri- or infrahilar area of increased opacity and obscuring the right cardiac margin. Erect lateral radiographs (n = 4) showed inferior shift of the anterosuperiorly located atelectatic lobe(s) to the anteroinferior portion of the hemithorax. Conclusion: Atelectatic lobe(s) can move within the hemithorax according to changes in a patient s position. This process involves the RUL or both the RUL and RML.

• Journal of Chest Surgery
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• 제37권10호
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• pp.884-887
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• 2004

폐 절제술 후 남아 있는 폐엽의 무기폐는 술 후 흔히 볼 수 있는 합병증이다. 이는 효율적인 객담 제거가 되지 않으면 재원일수의 연장 및 전신 상태가 좋지 않은 환자들에겐 치명적일 수도 있다. 따라서 저자들은 고식적인 방법으로 객담 배출이 원활히 되지 앓는 환자에게 선택적 기관지내 흡입도관 유치술을 시행하였다. 기관지 내시경하에 시행하였으며 4번째 기관지륜 상방에 국소 마취를 하여 중심 정맥 도관을 기관지 내로 삽입하였으며 무기폐가 생긴 엽에 도관 끝을 유치하여 반복적 강제 객담배출을 시행하였다. 아주 효과적인 결과를 경험하였기에 보고하는 바이다.

• 한국임상수의학회지
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• 제37권6호
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• pp.367-370
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• 2020

Four dogs were incidentally diagnosed as plate-like atelectasis (PLA) by thoracic radiographs. The dogs underwent thoracic computed tomography (CT) examination with various causes. On the lateral radiographs, PLA lesions were observed as a single linear or curvilinear radiopaque area in all four dogs. Although PLA lesions were observed linear structures on dorsal and sagittal reformatted CT images as in the radiographs, it appeared pulmonary opacification or band shape on transverse images. Therefore, care should be taken to differentiate PLA from other pulmonary diseases.

• Clinical and Experimental Pediatrics
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• 제45권9호
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• pp.1090-1096
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• 2002

목 적: 저자들은 무기폐로 굴곡성 기관지내시경을 시행받은 소아 환자들의 임상 양상, 기관지내시경 소견과 기관지내시경의 치료적 유용성을 알아보고자 하였다. 방 법 : 단순 흉부 방사선 촬영에서 한달 이상 지속된 만성 무기폐, 급성 광범위 무기폐, 또는 우연히 발견되어 지속기간을 알 수 없는 무기폐를 보여 진단 및 치료 목적으로 굴곡성 기관지내시경을 시행 받은 66명의 소아를 후향적으로 분석하였다. 결 과 : 무기폐가 발생한 기저 질환으로는 폐렴 후에 발생한 경우가 32례(60.4%)로 가장 많았고 그 외에 결핵, 만성폐질환, 수술, 천식, 교통사고와 연관되어 나타났다. 무기폐는 우중엽(24.6%)과 우상엽(24.6%)에 가장 많이 발생하였다. 기관지내시경 소견은 정상 기도를 보인 경우가 26례(39.4%)로 많았고, 염증성 기도 변화를 보인 경우가 29례(경도의 염증성 기관지 협착 15례, 기도 점막의 부종과 과다 분비물을 보인 경우가 14례, 작은 육아종 3례, 점액마개가 3례)로 이상 소견의 대부분을 차지하였으며 그 외 선천성 기도 기형, 기관지내결핵, 기관지의 외인성 압박과 혈전 등이 관찰되었다. 폐렴과 연관되어 발생한 무기폐의 기관지내시경 소견도 정상 기도를 보인 경우가 32례 중 14례(43.7%)였으며 기도 점막의 부종과 과다 분비물, 기관지 협착 등의 염증성 변화가 역시 이상 소견의 대부분을 차지하였다. 치료적 목적으로 분비물의 흡입, 기관지 세척 및 N-acetylcystein($Mucomyst^{(R)}$) 주입을 시행받은 39례 중 18례(46.1%)에서 무기폐가 부분적으로 혹은 완전히 호전되었고, 폐렴과 동반되어 나타난 무기폐의 경우에는 치료적 처치를 시행 받은 23명 중 13명(56.5%)에서 무기폐가 호전을 보였다. 결 론: 굴곡성 기관지내시경술을 시행받은 소아들에서 무기폐는 대부분 폐렴과 만성폐질환, 천식 등의 염증성 호흡기질환과 동반되어 발생하였다. 기관지내시경 소견상 이상 소견으로는 경도의 기관지 협착과 다량의 염증성 분비물 등의 염증성 기도 변화가 대부분이었으나 약 40%에서는 정상소견을 보였다. 굴곡성 기관지내시경은 소아에서도 무기폐의 진단에 유용하였고, 만성 무기폐나 급성 광범위 무기폐의 치료에도 효과적임을 알 수 있었으며 특히 폐렴 후 발생한 지속적 무기폐의 치료에 기관지내시경이 유용할 것으로 판단된다.