• The Journal of the Korean dental association
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• v.50 no.1
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• pp.31-37
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• 2012

Objective : This research compared stabilities between two types of dental implant ($SLA^{TM}$, Institut Straumann AG, Waldenburg, Switzerland and $SSII^{TM}$, Osstem co, Busan, Korea) using Osstell Mentor (Integration Diagnostics AB, Goteborg, Sweden) considering surgery methods, surgery area, diameter of implant, systemic disease, and smoking for obtaining prognosis information when installing fixture of dental implant. Materials & Methods : 206 implants of 131 patients taken by resonance frequency analysis (RFA) were determined as a final sample. Dental implants were installed as protocol of supplier by a excellent dentist who had 10 years experience about dental implants. Before connecting abutments (3 months after installation of fixture), RFA were measured twice for buccal and lingual direction to obtain average value. Results : Dental implants at mandible showed significantly higher stabilities significantly than at maxilla (p<0.001). Diameter 4.8 implants had also higher stabilities than diameter 4.1 in case of $SLA^{TM}$ implants (p<0.001). $SLA^{TM}$ implants showed more excellent stabilities than $SSII^{TM}$ implants, especially at posterior area of mandible (p=0.045) and premolar area of maxilla (p=0.032). Conclusions : This research revealed higher stabilities of $SLA^{TM}$ implants than $SSII^{TM}$ implant, especially at posterior area of mandible (p=0.045) and premolar area of maxilla (p=0.032).

• Journal of Chest Surgery
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• v.19 no.2
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• pp.259-264
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• 1986

Broncholithiasis is defined as a cor9ition in which a concretion is present within a bronchus or a cavity in the lung communicating with a bronchus. The usual causes of broncholithiasis are known as tuberculosis, histoplasmosis, silicosis, aspirated calculi, and a few fungal infections. It is generally accepted that the constant motion created by respiration and beating of the heart may cause the peribronchial calcified lymph node to erode into the tracheobronchial tree and to form broncholith. After the analysis of our 6 cases of broncholithiasis which were treated surgically in the Department of Thoracic Surgery, Seoul National University Hospital from 1960 to December, 1985, we could suggest that intrinsic formation of calculi should be regarded as the pathogenesis of broncholithiasis in addition to the extrinsic formation of calculi.

• Journal of Chest Surgery
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• v.18 no.2
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• pp.320-326
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• 1985

Pulmonary sequestration occurs when some disturbance produces a cystic mass of nonfunctioning lung tissue which lacks normal communication with the tracheobronchial tree. Between 1971 and 1985, pulmonary sequestration was diagnosed in 11 patients, ranging age from 3 to 29 years. All sequestration were intralobar type. Definitive diagnosis can only be obtained by aortography and/or surgical exploration in 10 cases. The other one was confirmed by pathologic examination postoperatively. The presenting complaints were mostly recurrent local pulmonary infection, but in 2 cases mediastinal mass with respiratory symptoms was presented, and cardiac murmur was only finding in one case. Preoperative diagnostic procedure revealed 3 associated anomalies which were funnel chest, right aortic arch, and pulmonic stenosis with vascular ring. Operative treatment for sequestration was lobectomy in 10 cases, and a segmentectomy in one. There was no operative mortality, but 3 complications [empyema, B-P fistula, post-op bleeding] which were controlled by subsequent operations or conservative measure. Aortography is strongly advocated not only for its diagnostic value, but for its preoperative localization of the aberrant vessels that are the major concern to the surgeon.

• Journal of Chest Surgery
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• v.15 no.1
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• pp.27-34
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• 1982

Pulmonary sequestration Is an unusual congenital malformation characterized by the presence of nonfunctioning lung tissue which usually has no communication with the normal bronchial tree and which receives its blood supply from an anomalous systemic artery instead of a pulmonary arterial branch. Two forms of pulmonary sequestration occur: Intralobar sequestration, in which the abnormal pulmonary tissue is incorporated within the normal lung and shares a common covering of visceral pleura, and extralobar sequestration, in which the abnormal pulmonary tissue is separated from the normal lung and has its own pleural investment. Since 1970, five cases of pulmonary sequestration were operated at the Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University. 1. Among five cues, one was male and the others were female. 2. All were intralobar type and involved left lower lobe. 3. There was no operative mortality following left lower lobectomy and ligation of the aberrant artery.

• Journal of Chest Surgery
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• v.29 no.10
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• pp.1166-1169
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• 1996

Neurllemomas of the tracheobroncheal tree are extremely rare. Most are located in the lower trachea, and cause chronic cough and wheezing. They usually have a very long natural history, causing symptoms only after they have attained a considerable size. Current treatment of primary intratracheal tumor is sugical removal. Recently, we experienced a case of primary intratracheal neurilemoma which was successfully treated by tracheal resection and anastomosis. We report this case with a brief review of literature.

• Archives of Reconstructive Microsurgery
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• v.23 no.1
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• pp.21-24
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• 2014

Bronchopleural fistula is an unnatural communication between the bronchial tree and pleural space. Closure of the bronchial stump using various muscular flaps has been previously reported. There have been few reports on treatment of large defects with bronchopleural fistula accompanied by surrounding muscle injury. We report on our experience with two patients suffering from large defect with bronchopleural fistula, who were treated with free flaps. No recurrence of bronchopleural fistula was observed during follow-up.

• Journal of Chest Surgery
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• v.14 no.4
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• pp.331-338
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• 1981

The inhalation of a foreign body into the tracheobronchial tree is a child is a life-threatening accident. Forgotten foreign bodies In the airways cause chronic pulmonary infections, allergic asthma, bronchiectatic changes, and lung abscess Foreign bodies that cannot be grasped by bronchoscopic forceps should be removed by thoracotomy and bronchotomy. This report describes our experience In 16 patients who were treated to remove inhaled foreign bodies from the airways after repeated bronchoscopies had been unsuccessful from 1963 to 1981 at the department thoracic surgery of Seoul National University Hospital. The surgical procedures are as follows: 12 patients bronchotomy, 2 patient pneumonectomy, 2 patients lobectomy. In these cases, the foreign bodies are 8 metallic material, 3 plastic material, 1 bean, 1 black snail, and 3 cases of no records. Bronchotomy must be performed as soon as possible in order to avoid more advanced pathologic changes In the Involved lung, such as bronchiectasis, fibrosis or abscess.

• Journal of Chest Surgery
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• v.23 no.3
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• pp.600-604
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• 1990

A fistulous communication between an esophageal traction diverticulum and the tracheobronchial tree appears to be of rare occurrence. This report reviews the feature of benign esophagobronchial fistula due to esophageal traction diverticulum. This 36-year-old female patient suffered from substernal pain, interscapular pain and severe paroxysmal coughing after ingestion of fluids. This patient was taken a diverticulectomy and partial resection of superior segment of right lower lobe. After the operation, there was no subjective symptoms, esophagobronchial fistula, leakage, stricture and diverticulum. The postoperative result was excellent.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.31 no.2
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• pp.87-91
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• 2020

The tracheostomy directs external air into the airway tract. This process causes mucosal dryness, irritation and inflammation in the tracheo-bronchial tree. In order to prevent such problems, several methods are applied; ointment application, humidification and careful suction etc. The heat-moisture exchanger (HME) is commercially sold device that assists heating and humidification of the inhaled air. The authors experienced successful treatment outcome of intractable tracheitis caused by repetitive and vigorous intra-tracheal suction by applying HME in a total laryngectomized patient. We report an interesting and didactic case with a brief literature review.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.33 no.1
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• pp.37-41
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• 2022

Airway foreign body aspiration in children can lead to accidental death, due to the foreign body itself or the removal procedure. Depending on its location, removal of the foreign body can be challenging. Here, we present a case of successful removal of a foreign body from the left upper lobar bronchus via ventilating bronchoscopy with a rigid bronchoscope and Fogarty arterial embolectomy catheter. Tracheobronchial foreign bodies in locations that are difficult to reach with forceps, due to an acute angle or the small diameter of the pediatric bronchial tree, can be effectively removed with a Fogarty arterial embolectomy catheter.