Background: In order to access the role of ballooning in patients with post‐tuberculosis bronchial stenosis (PTBS), medical records of patients who underwent the procedure were reviewed. Methods: Twenty‐nine PTBS patients underwent balloon dilatation between May 1999 and November 2000 at Samsung Medical Center. The median age was 28 (range 16∼62 year) and most patients were female (n=27, 93%). The mean number of ballooning procedures was 2.4 (range 1∼8) and the interval between ballooning procedures was 76.2±69.7 days. Results: In general, the FEV1 was improved after ballooning (from 66.2.±11.9% predicted to 73.5±13.0% predicted, p=0.0004). Among 29 patients who underwent ballooning, a clinically successful outcome was observed in 16 patients (55%). Comparison between the successful and unsuccessful groups showed that favorable factors for a successful outcome were a higher pre‐ballooning FEV1 (71.1±8.1 vs. 60.2±13.3% predicted), higher post‐ballooning FEV1 (89.2±7.8 vs. 63.4±9.2% predicted) and absence of left upper lobe collapse. The clinical outcome was unsuccessful in all eight patients with a pre‐ballooning FEV1 ≤57% of predicted or with complete left upper lobe collapse. Conclusion: In conclusion, ballooning appears to be helpful in patients with PTBS, especially when the preballooning FEV1 ＞57% of predicted and there is no complete left upper lobe lung collapse.
Background: The aim of this study was to consider the significance of pleural fluid adenosine deaminase (ADA) activity combined with lymphocyte/neutrophil (L/N) ratio in the diagnosis of tuberculous pleurisy (TBpl) in a region of intermediate prevalence of tuberculosis (TB). Methods: We collected data from 388 patients with exudative pleural effusions. The final diagnoses were compared to the results from our diagnostic method using pleural fluid ADA and L/N ratio. Results: 108 patients had a final diagnosis of TBpl; 102 cases had high levels of ADA (≥40 IU/L). When we considered ADA ≥40 IU/L as a diagnostic criterion, the sensitivity was 94.4%, specificity 87.5%, and posttest posttest probability 74.5%. However, when we considered ADA ≥40 IU/L combined with the L/N ratio ≥0.75 as a diagnostic criterion, the specificity and post-test probability were rose to 97.5% and 93%, respectively. The other causes of high ADA and L/N ratios were lymphoma and metastatic carcinoma, but mass-like lesions were found on the chest radiographs or CT scans. Conclusion: To evaluate the causes of exudative pleural effusions in a region of intermediate prevalence of tuberculosis, we recommend measuring the pleural fluid ADA and L/N ratio first. If the result is high and malignancies are not suspected, it may be diagnostic of TBpl.
Background: Biomarkers for cancer have several potential clinical uses, including the following: early cancer detection, monitoring for recurrence prognostication, and risk stratification. However, no biomarker has been shown to have adequate sensitivity and specificity. Many investigators have tried to validate biomarkers for the early detection and recurrence of lung cancer. To evaluate plasma G-CSF as such a biomarker, protein levels were measured and were found to correlate with the clinicopathological features of primary lung tumors. Methods: Between December 2006 and May 2008, 100 patients with histologically-validated primary lung cancer were enrolled into this study. To serve as controls, 127 healthy volunteers were enrolled into this study. Plasma G-CSF levels were measured in lung cancer patients using the sandwich ELISA system (R & D inc.) prior to treatment. Results: The mean plasma G-CSF levels were 12.2±0.3 pg/mL and 46.0±3.8 pg/mL (mean±SE) in the normal and in the cancer groups, respectively. In addition, plasma G-CSF levels were higher in patients with early lung cancer than in healthy volunteers (p＜.001). Plasma G-CSF levels were higher in patients who were under 65 years old or smokers. Within the cancer group, plasma G-CSF levels were higher in patients with non small cell lung cancer than in patients with small cell lung cancer (p＜.05). Overall, plasma G-CSF levels were shown to increase dependent upon the type of lung cancer diagnsosed. In the order from highest to lowest, the levels of plasma G-CSF tended to decrease in the following order: large cell carcinoma, squamous cell carcinoma, adenocarcinoma, and bronchioloalveolar carcinoma. Plasma G-CSF levels tended to be higher in patients with advanced TNM stage than in localized TNM stage (Ⅰ, Ⅱ＜Ⅲ, Ⅳ). Increased levels were also seen in patients with distant metastasis in the order of bone, adrenal gland involvement. Conclusion: Plasma G-CSF level were significantly increased in patients with lung cancer, and in especially advanced TNM stage. These results suggest that plasma G-CSF can be used to support the diagnostic process of lung cancer staging and as an indicator of metastasis.
폐흡충증은 예전에 비해서 발생 빈도가 감소 하였으나,현재도 산발적으로 발생하고 있다. 폐흡충증은 민물 게나민물 가재 등의 섭취력이 있고, 혈액검사상 호산구 증가증이 있는 경우 의심을 해보아야 한다. 객담이나 대변 검사상 충란을 발견할 경우 폐흡충증을 진단할 수 있으나 실제로 발견되는 경우는 40% 미만이므로 폐흡충증이 의심된다면 방사선학적 및 혈청학적 방법에 의해 폐흡충증을 확인하는 것이 필요하다. 치료로는 praziquantel 25 mg/kg씩 1일 3회, 이틀간 투여하는 1회 치료 과정으로 비교적좋은 예후를 보인다. 그러나 본 증례처럼 1회 치료로 불충분하여 재발하는 경우가 있으므로 치료 후에도 정기적인추적 관찰이 필요하겠다. 또한 재발 및 재치료율을 낮추기 위한 연구와 재발 환자의 치료 기간 정립이 필요할 것으로 생각된다. 저자들은 좌측 흉수를 주소로 내원하여폐흡충에 의한 흉수로 진단 받은 35세 환자에서 praziquantel25 mg/kg씩 1일 3회, 2일간 투여하여 호전 보였으나, 이후에 3차례나 재발하여 총 4차례 치료 과정을 반복하여 호전된 증례를 경험하였기에 문헌과 함께 보고하는 바이다.
Paragonimiasis is a parasitic infection that occurs following the ingestion of infectious Paragonimus metacercariae, which occurs as a result of eating raw or undercooked freshwater crabs or crayfish. Pulmonary paragonimiasisis the most common clinical manifestation of this infection. Human paragonimiasis occurs sporadically. We experienced a case of pulmonary paragonimiasis in a 35-year-old woman with left lower chest pain. The patienthad hypereosinophilia and a pleural effusion. The diagnosis was confirmed by positive ELISA (Enzyme-linked immunosorbent assay) that detected Paragonimiasis westermani antibody in the serum. We treated the patient withpraziquantel for two days at a daily dosage of 75 mg/kg. Left pleuritic pain and pleural effusion improved after treatment. However, similar symptoms and pleural effusion developed recurrently for the first 3 courses of treatmentwith praziquantel. Upon the fourth round of treatment, the patient made a full recovery.
While receiving appropriate treatment, patients with tuberculosis occasionally have unusual, paradoxical reactions, with transient worsening of lesions or the development of new lesions. This report is a case of tuberculosis brain abscess and tuberculosis peritonitis with intra-abdominal abscess that developed during appropriate anti-tuberculosis chemotherapy. A 45-year-old male patient had been diagnosed as with all-drug susceptible pulmonary tuberculosis with pleurisy. Subsequently, the patient underwent standard treatment with anti-tuberculosis therapy; the pulmonary lesions improved. Three months after initial treatment, the patient developed brain abscesses and peritonitis. With the addition of corticosteroid treatment, the patient’s neurologic symptoms were relieved. Exploratory laparotomy with surgical drainage was performed and a diagnosis of tuberculosis peritonitis was confirmed on biopsy. Anti-tuberculosis therapy was continued for 19 months, the patient improved eventually without further complications, although the therapeutic regimen had not been altered. In this case, the paradoxical response to treatment may have been involved in the pathogenesis of disease.
Streptococcus constellatus (S. constellatus) is a commensal microorganism belonging to the “Streptococcus milleri” group, but may cause infections in different locations in immunocompromised patients. The infection of S. constellatus has high mortality and morbidity due to its tendency to cause abscesses in infected patients, which require immediate surgical drainage for effective treatment. We report on a 72-year-old woman with end stage renal disease, who suffered from dyspnea and general weakness that had developed over 7 days. Chest CT showed loculated pleural effusion. S. constellatus was cultured from exudative pleural effusions and confirmed by an analysis of 16S rRNA sequence. The patient was treated with drainage of pleural effusion and piperacillin/tazobactam for 5 weeks.
Serum CA 125 is the most useful marker for monitoring patients with epithelial ovarian cancer. However, it can be elevated above normal level in a variety of conditions other than ovarian cancer such as endometriosis, pelvic inflammation disease, and other malignant or nonmalignant disorders, including pulmonary diseases. Recently, we experienced a case of bronchiectasis in which the serum CA 125 level was elevated, changing with the patient’s condition. There was no evidence of underlying malignant disease on positron emission tomography or on gynecologic examination, including transvaginal ultrasonography. During follow-up for 14 months, we could not find any clue of malignant disease that could have been the cause of the elevated levels of serum CA 125. Elevated serum CA 125 level should be interpreted carefully according to the patient’s clinical condition. In addition, our case suggests that CA 125 may be used as a surrogate marker for acute inflammatory status for chronic pulmonary diseases.
Human placenta contains various kinds of nutritional elements essential for embryonic development. Currently, human placenta extracts are widely overused in Korea to improve certain health conditions (postmenopausal syndrome, liver function, and cosmetic purposes) without scientific evidence that they actually work. The use of placenta extracts should be restricted, due to a lack of systematic research on the therapeutic effectiveness and adverse results from these treatments. While the common adverse effects that have been reported are fever, rash, itching, nausea, vomiting, breast pain, and rare cases of anaphylactic shock, there have been no reports of pulmonary complications such as hypersensitivity pneumonitis. Recently, we experienced a patient with hypersensitivity pneumonitis following a placenta extract injection. To our knowledge, this is the first case of hypersensitivity pneumonitis associated with placenta extract use.
Leflunomide, a disease-modifying antirheumatic drug (DMARD) for the treatment of rheumatoid arthritis has been available in Korea since 2003. Leflunomide-associated interstitial pneumonitis has been appearing recently. A 25-year-old woman with a 12-month history of seronegative rheumatoid arthritis (RA) presented with acute respiratory insufficiency. She developed fever, dyspnea, and non-productive cough. Her medication history included methotrexate (15 mg/week. commencing 1 year prior) and leflunomide (20 mg/day, no loading dose, commencing 4 months prior). She was diagnosed with leflunomide-associated interstitial pneumonitis based on history, physical examination, laboratory and radiologic findings. She recovered quickly after leflunomide was withdrawn and steroids and cholestyramine were initiated quickly. We report a case of leflunomide-associated interstitial pneumonitis treated successfully with intravenous high-dose steroid and cholestyramine.
The middle mediastinum contains several important organs and pluripotent cells. It is difficult to make a definitive diagnosis in patients with middle mediastinal tumors due to a wide range of diseases. The likelihood of malignancy is influenced primarily by the following factors: patient age, size, tumor location, and the presence or absence of symptoms. We describe a case of a middle mediastinal tumor, which was suspected on chest x-ray; chest computed tomography revealed the eccentric mass of distal esophagus. This case emphasizes the diagnostic importance of the chest x-ray to the physicians. The possible differential diagnoses are reviewed.