The Experts below are selected from a list of 21915 Experts worldwide ranked by ideXlab platform
Fernando J Martinez - One of the best experts on this subject based on the ideXlab platform.
-
risk of Pneumothorax in ct guided transthoracic needle aspiration biopsy of the lung
Radiology, 1996Co-Authors: Ella A Kazerooni, Fred T Lim, Akmal Mikhail, Fernando J MartinezAbstract:PURPOSE: To determine risk factors for Pneumothorax and chest tube placement associated with computed tomography (CT)-guided transthoracic needle aspiration biopsy (TNAB) of the lung. METHODS: One hundred twenty-one consecutive CT-guided TNAB procedures were performed in 117 patients. Patient age, sex, number of needle passes and pleural planes traversed, lesion size, distance of lesion from the pleura, and results of pulmonary function tests were analyzed as single and multiple dependent variables for Pneumothorax and chest tube placement. RESULTS: Pneumothorax occurred in 54 of 121 procedures (44.6%); a chest tube was required in 18 cases (14.9%). Increased lesion depth was the most significant predictor of Pneumothorax (P = .002). Smaller lesion size also correlated with increased risk of Pneumothorax (P = .04). Among patients with Pneumothorax, a significantly higher frequency of chest tube placement was seen in those with severe obstructive lung disease, as measured by percentage of predicted FEV1 (f...
Choon Taek Lee - One of the best experts on this subject based on the ideXlab platform.
-
chest computed tomography ct immediately after ct guided transthoracic needle aspiration biopsy as a predictor of overt Pneumothorax
The Korean Journal of Internal Medicine, 2009Co-Authors: Tae June Noh, Changhoon Lee, Young Ae Kang, Sung Youn Kwon, Ho Il Yoon, Tae Jung Kim, Kyung Won Lee, Jaeho Lee, Choon Taek LeeAbstract:Background/Aims: This study examined the correlation between Pneumothorax detected by immediate posttransthoracic needle aspiration-biopsy (TTNB) chest computed tomography (CT) and overt Pneumothorax detected by chest PA, and investigated factors that might influence the correlation. Methods: Adult patients who had undergone CT-guided TTNB for lung lesions from May 2003 to June 2007 at Seoul National University Bundang Hospital were included. Immediate post-TTNB CT and chest PA follow-up at 4 and 16 hours after CT-guided TTNB were performed in 934 patients. Results: Pneumothorax detected by immediate chest CT (CT-Pneumothorax) was found in 237 (25%) and overt Pneumothorax was detected by chest PA follow-up in 92 (38.8%) of the 237 patients. However, overt Pneumothorax was found in 18 (2.6%) of the 697 patients without CT-Pneumothorax. The width and depth of CT-Pneumothorax were predictive risk factors for overt Pneumothorax. Conclusions: CT-Pneumothorax is very sensitive for predicting overt Pneumothorax, and the width and depth on CTPneumothorax are reliable risk factors for predicting overt Pneumothorax.
-
incidence and risk factors of delayed Pneumothorax after transthoracic needle biopsy of the lung
Chest, 2004Co-Authors: Chang Min Choi, Chul Gyu Yoo, Youngwhan Kim, Sungkoo Han, Young Soo Shim, Choon Taek LeeAbstract:Study objectives: To evaluate the incidence and clinical significance of delayed Pneumothorax, and to analyze the influence of multiple variables on the rate of delayed Pneumothorax associated with transthoracic needle biopsy (TTNB) of the lung. Study design: Prospective study. Setting: Tertiary care university hospital. Study subjects: Adult patients underwent TTNB from June 2001 to June 2002. Measurements and results: Among the 458 patients included in this study, 280 fluoroscopic-guided, 21 CT-guided, and 157 ultrasonography-guided lung biopsies were performed. A follow-up chest radiograph was obtained immediately, and 3 h, 8 h, and 24 h after the biopsy procedure. Pneumothorax that had not developed up to 3 h but developed later was defined as a delayed Pneumothorax. Patients with a symptomatic or enlarged Pneumothorax were treated using a pigtail catheter or chest tube. Variables such as age, gender, lesion size, location, presence of an emphysematous change, biopsy guidance methods, and biopsy devices were analyzed. Pneumothorax developed in 100 of the 458 patients (21.8%), and delayed Pneumothorax developed in 15 patients (3.3%). Seventeen patients, including 3 patients with delayed Pneumothorax, required a pigtail catheter or a chest tube insertion. The pigtail catheter or chest tube insertion rate in delayed Pneumothorax was 20% (3 of 15 patients). Female gender and the absence of an emphysematous change correlated with an increased rate of delayed Pneumothorax (p Conclusions: The incidence of delayed Pneumothorax was 3.3% of all TTNBs. Female gender and the absence of an emphysematous change were identified as risk factors for delayed Pneumothorax. Delayed Pneumothorax is clinically important because of its considerable incidence and the necessity for pigtail catheterization or chest tube insertion in these patients.
Harubumi Kato - One of the best experts on this subject based on the ideXlab platform.
-
the incidence and the risk of Pneumothorax and chest tube placement after percutaneous ct guided lung biopsy the angle of the needle trajectory is a novel predictor
Chest, 2002Co-Authors: Hisashi Saji, Haruhiko Nakamura, Takaaki Tsuchida, Masahiro Tsuboi, Norihiko Kawate, Chimori Konaka, Harubumi KatoAbstract:Study objective Pneumothorax remains the most common complication of percutaneous CT-guided lung biopsy, despite improved techniques. The rate of Pneumothorax reported in the literature ranges from 19 to 60%. The aims of this study were to estimate the risk of Pneumothorax in patients undergoing CT-guided lung biopsy, and to determine which factors affect its occurrence. Design Retrospective study. Patients and methods This study involved 289 consecutive patients who underwent biopsy in our hospital under consistent methods, using only one type of needle, the 19-gauge Tokyo Medical College (TMC) Needle (Takei; Tokyo, Japan), under CT guidance. Result Seventy-seven patients (26.6%) had Pneumothorax after percutaneous CT-guided lung biopsy. Forty-one of the 77 patients (53.2%) who had Pneumothorax (14.2% of the entire series) required placement of a chest tube. Our present study, using multivariate logistic regression analysis, confirmed that greater lesion depth, wider trajectory angle, and increasing FVC percent predicted are independent risk factors of Pneumothorax, and that two former factors are independent risk factors of chest tube placement following percutaneous CT-guided lung biopsy. Conclusions The angle of needle route is a novel predictor of this complication. Our findings suggest that low Pneumothorax rates are achieved by combining several techniques to reduce the risk of Pneumothorax.
Ella A Kazerooni - One of the best experts on this subject based on the ideXlab platform.
-
routine chest radiography for the evaluation of Pneumothorax following bronchoscopy
Academic Radiology, 2019Co-Authors: Christopher P Centonze, Matthew S Davenport, Eric S White, Ella A KazerooniAbstract:Rationale and objectives To determine the utility of routine postbronchoscopy chest radiography to detect Pneumothorax. Materials and Methods This retrospective quality improvement cohort study was approved by the Institutional Review Board. All outpatients (n = 1443) who underwent protocol-driven postbronchoscopy chest radiography in one health system from January 2010 to July 2017 were identified by electronic medical record query. The prevalence of Pneumothorax (with 95% confidence intervals [CI]) and clinical outcome were determined following coded review of chest radiography reports and review of the electronic medical record. The effect of smoking and lung disease on risk of Pneumothorax was determined with Chi Square tests. Results Of 1443 subjects undergoing interventional bronchoscopy, 6% (93/1443) were current smokers, 35% (505/1442) were former smokers, and 35% (540/1443) had known lung disease. Pneumothorax prevalence was 3.4% (49/1443; 95% CI: 2.6%–4.5%) following any intervention and 4.1% (42/1032; 95% CI: 3.9%–5.5%) following transbronchial intervention. In those without known pre-existing Pneumothorax or a confirmed false positive diagnosis, the real overall Pneumothorax rate was 2.9% (42/1443; 95% CI: 2.1%–3.9%). The risk of Pneumothorax did not differ based on smoking history (p = 0.99) or history of lung disease (p = 0.19). Of 49 subjects with Pneumothorax, 13 were symptomatic, and 10 had a change in management including chest tube placement (N = 2), inpatient admission (N = 3), and/or observation (N = 7). No Pneumothorax-related intervention was performed in asymptomatic patients. Conclusion Pneumothorax following interventional outpatient bronchoscopy is uncommon, usually asymptomatic, and often clinically insignificant. Asymptomatic postbronchoscopy patients are very low risk and may not need routine imaging.
-
risk of Pneumothorax in ct guided transthoracic needle aspiration biopsy of the lung
Radiology, 1996Co-Authors: Ella A Kazerooni, Fred T Lim, Akmal Mikhail, Fernando J MartinezAbstract:PURPOSE: To determine risk factors for Pneumothorax and chest tube placement associated with computed tomography (CT)-guided transthoracic needle aspiration biopsy (TNAB) of the lung. METHODS: One hundred twenty-one consecutive CT-guided TNAB procedures were performed in 117 patients. Patient age, sex, number of needle passes and pleural planes traversed, lesion size, distance of lesion from the pleura, and results of pulmonary function tests were analyzed as single and multiple dependent variables for Pneumothorax and chest tube placement. RESULTS: Pneumothorax occurred in 54 of 121 procedures (44.6%); a chest tube was required in 18 cases (14.9%). Increased lesion depth was the most significant predictor of Pneumothorax (P = .002). Smaller lesion size also correlated with increased risk of Pneumothorax (P = .04). Among patients with Pneumothorax, a significantly higher frequency of chest tube placement was seen in those with severe obstructive lung disease, as measured by percentage of predicted FEV1 (f...
Takao Hiraki - One of the best experts on this subject based on the ideXlab platform.
-
incidence of and risk factors for Pneumothorax and chest tube placement after ct fluoroscopy guided percutaneous lung biopsy retrospective analysis of the procedures conducted over a 9 year period
American Journal of Roentgenology, 2010Co-Authors: Takao Hiraki, Hidefumi Mimura, Hideo Gobara, Kentaro Shibamoto, Daisaku Inoue, Yusuke Matsui, Susumu KanazawaAbstract:OBJECTIVE. The objective of our study was to retrospectively evaluate the incidence of and the risk factors for Pneumothorax and chest tube placement after CT fluoroscopy–guided lung biopsy.MATERIALS AND METHODS. We analyzed 1,098 CT fluoroscopy–guided lung biopsies conducted with 20-gauge coaxial cutting needles for 1,155 lesions in 1,033 patients. Apart from evaluating the incidence of Pneumothorax and chest tube placement, the independent risk factors for Pneumothorax and chest tube placement for Pneumothorax were determined using multivariate logistic regression analysis.RESULTS. The overall incidence of Pneumothorax was 42.3% (464/1,098). Chest tube placement was required for 11.9% (55/464) of pneumothoraces (5.0% [55/1,098] of the total number of procedures). The significant independent risk factors for Pneumothorax were no prior pulmonary surgery (p = 0.001), lesions in the lower lobe (p < 0.001), greater lesion depth (p < 0.001), and a needle trajectory angle of < 45° (p = 0.014); those for chest ...
-
Pneumothorax pleural effusion and chest tube placement after radiofrequency ablation of lung tumors incidence and risk factors
Radiology, 2006Co-Authors: Takao Hiraki, Nobuhisa Tajiri, Hidefumi Mimura, Kotaro Yasui, Hideo Gobara, Takashi Mukai, Soichiro Hase, Hiroyasu Fujiwara, Toshihiro Iguchi, Yoshifumi SanoAbstract:Purpose: To retrospectively evaluate the incidence of and risk factors for Pneumothorax, pleural effusion, and chest tube placement for Pneumothorax after radiofrequency (RF) ablation of lung tumors. Materials and Methods: Institutional review board approval was obtained, with waiver of informed consent. This retrospective study comprised 224 ablation sessions for 392 tumors in 142 patients (92 men, 50 women; mean age, 64.0 years). Multiple variables were analyzed by using the Student t test or the Mann-Whitney U test for numerical values and by using the χ2 test or the Fisher exact test for categorical values in order to assess risk factors for Pneumothorax, pleural effusion, and chest tube placement for Pneumothorax. Results: The incidence of Pneumothorax, pleural effusion, and chest tube placement for Pneumothorax was 52% (117 of 224 sessions), 19% (42 of 224 sessions), and 21% (24 of 117 sessions), respectively. For Pneumothorax, risk factors included male sex (P = .030), no history of pulmonary surge...
