Coagulation of Intrabronchial Tumors by Transbronchoscopic Microwave Electrodes
2
Citation
3
Reference
10
Related Paper
Abstract:
We performed transbronchoscopic microwave electrodes for two cases of respiratory tract tumors. One case had had a left complete atelectasis for bronchial tumor, after microwave electrodes had been carried out surgery. The otherhad had a right complete atelectasis for epidermoid carcinoma ; we performed transbronchial biopsy for diagnosis with using microwave electrodes for occasional bronchial bleeding.We experienced less bleeding and smoke, a larger area could be coagulated in single procedure than high power laser ablation therapy. This method was effective in treating airway obstruction, especially in patients for administrating oxygen for respiratory failure because of less its ignitable.Keywords:
Atelectasis
Objective:To analyze manifestation of lower lobe atelectasis due to pleural effusion on CT and study orientation of dislocated total or subtotal lobar atelectasis.Materials and Methods:Chest CT of 80 patients with pleural effusion were collected and the patients with a mediastinal mass or central bronchial lung cancer were excluded.Results:①5 patients of volume loss without focal atelectasis;②35 patients with segmental or subsegmental atelectasis;③12 patients with total or subtotal lobar atelectasis which tends to be retracted posteriorly and medially.④28 patients with total or subtotal lobar atelectasis which tends to be uplifted toward the hilus;Conclusion:Four patterns of passive lower lobe atelectasis were observed with the size of the pleural effusion.The lower lobar atelectasis tends to be retracted to the hilus mainly,rather than retracted posteriorly and medially.
Atelectasis
Cite
Citations (0)
Objectives The aim of this study was to compare the differences between the ablation region and hyperechoic zones in microwave and radio frequency ablation of different tissues. Methods Microwave and radio frequency ablation were performed on fresh porcine muscle and liver with different power levels for 90 seconds. These 2 ablation methods were then performed on rabbit liver in vivo using 20 W for 60 seconds. The volumes of the ablation and hyperechoic zones were compared following different ablation methods. Results The ablation zones were significantly greater than the hyperechoic zones ( P < .05) with the same power and duration when using 2 ablation methods. The differences of the ablation and hyperechoic zones between muscle and liver tissues were significantly different ( P < .05). The difference values of the ablation and hyperechoic zones were also significantly different ( P < .05) using 2 ablation methods. Conclusions The hyperechoic zone may have underestimated the extent of ablation using a specified ablation time. In the same tissue, the hyperechoic zone could more accurately estimate the ablation zones using microwave ablation.
Microwave ablation
Ablation zone
Cite
Citations (7)
Respiratory failure is a clinical entity that substantially increases the possibility of tracheal intubation, implementation of invasive mechanical ventilation and life threatening. There are different types of respiratory failure, including a particular category: post-surgical respiratory failure. This clinical picture is usually a consequence of atelectasis secondary to the surgical procedures, the position during surgery, surfactant deterioration, pre-existing pathologies or age, among other causes. Its appearance has been associated with post-surgical complications, mainly pulmonary.
Atelectasis
Acute respiratory failure
Cite
Citations (0)
【Objective】To investigate the causes of pulmonary atelectasis in adult. 【Methods】Retrospectiveanalysis had been used to study the causes and the location of atelectasis through the review of the 216 cases withatelectasis. 【Results】For 216cases with atelectasis, tumor (38.9%), tuberculosis (25.9%) and inflamtion (25%) wereits main causes. The atelectasis of median lobe mainly due to inflamtion. In the patients, age from 40 to 60, morethan half of the atelectasis were caused by lung cancer. 【Conclusions】Lung cancer, tuberculosis and inflamtionwere the main causes of atelectasis in adult patients; examination of bronchofibroscope plays an important role in theetiological diagnosis of pulmonary atelectasis
Atelectasis
Cite
Citations (0)
Atelectasis occurs in the dependent parts of the lungs of most patients who are anesthetized. Development of atelectasis is associated with decreased lung compliance, impairment of oxygenation, increased pulmonary vascular resistance, and development of lung injury. The adverse effects of atelectasis persist into the postoperative period and can impact patient recovery. This review article focuses on the causes, nature, and diagnosis of atelectasis. The authors discuss the effects and implications of atelectasis in the perioperative period and illustrate how preventive measures may impact outcome. In addition, they examine the impact of atelectasis and its prevention in acute lung injury.
Atelectasis
Cite
Citations (606)
Atelectasis was determined by auscultation in 151 patients after abdominal surgery. The roentgenographic findings correlated well with auscultatory evidence of atelectasis. A carefully taken respiratory history was as helpful as pulmonary function tests in predicting postoperative atelectasis. The incidence of atelectasis was related to duration of surgery but not to age or obesity. Temperature elevation on the first postoperative day was directly related to the degree of atelectasis, but the white blood cell count (WBC) elevation was inversely related. No correlation was found between the bacteriologic state of the lower respiratory tract at the time of surgery, determined by an endotracheal aspirate culture, and the incidence of postoperative atelectasis, temperature, or WBC elevation. On the basis of this study, atelectasis is shown not to be related to an infectious process.
Atelectasis
Auscultation
Respiratory tract
Cite
Citations (34)
Cardiovascular and respiratory system complications are the most common causes of early mortality after liver transplant. We evaluated the causes of respiratory failure as an early postoperative pulmonary complication in liver transplant recipients.Patients who underwent orthotropic liver transplant between 2001 and 2014 were retrospectively evaluated. Clinical and demographic variables and pulmonary complications at the first and second visit after transplant were noted. The first visit was within the first week and the second was between 1 and 4 weeks after transplant. An arterial oxygen saturation value below 90% in room air for at least 1 day was considered a medically significant respiratory failure.Our study included 204 (148 men and 56 women; mean age 43.0.4 ± 13.06 y) adult liver transplant recipients (46 from deceased and 158 from living donors). At the first visit after transplant, 161 patients (79%) had postoperative pulmonary complications, including pleural effusion accompanied by atelectasis (47.1%), only atelectasis (17.2%), and only pleural effusion (10.3%). At the second visit, complications included atelectasis associated with pleural effusion (12.3%) and pneumonia (12.3%). All patients had documented respiratory failure at the first visit, and 92 patients (45.1%) had respiratory failure at the second visit. Causes of respiratory failure at the first visit included atelectasis in 35 patients (17.2%) and atelectasis accompanied by pleural effusion in 96 patients (47.1%). At the second visit, 25 of 161 patients (25.3%) had respiratory failure due to pneumonia. Other causes included atelectasis accompanied by pleural effusion (24.2%) and pleural effusion (23.2%). Ninety-seven patients had no pulmonary complications. The mortality rate was 6.4% within the first visit and 8.7% within the second visit.Pneumonia, atelectasis, and pleural effusion can cause respiratory failure within the first month after liver transplant. Early pulmonary examination, diagnosis, and treatment can improve patient survival.
Atelectasis
Cite
Citations (4)
Atelectasis
Cite
Citations (29)
[Objective] To analysis the clinic characteristic of atelectasis. [Methods] 471 cases with atelectasis were collected from department of respiratory medicine in our hospital to analyse the location and causes of atelectasis. [Results] There were 141 cases of right-middle lobe atelectasis, including 114 cases of right-upper lobe atelectasis, 47 cases of right-lower lobe atelectasis, 70 cases of left-upper lobe atelectasis, 53 cases of left-lower lobe atelectasis, 42 cases of whole left lobe atelectasis and 4 cases of whole right lobe atelectasis, which were approximate 29.9%, 24.2%, 10%, 14.9%,11.3%, 8.9% and 0.9% respectively. There were 120 cases of inflammation, 98 cases of tuberculosis,145 cases of cancer, 45 cases of neoplasm, 28 cases of foreign body,28 cases of normal observation under branchofiberoscope and 5 cases of blood blot, which were 25.3%, 20.8%, 30.8%, 9.6%, 5.9%, 5.9% and 1.5% respectively. There were 63 cases of inflammation in right-middle lobe atelectasis (approximate 44.7%), 54 cases of cancer in right-upper lobe atelectasis (approximate 47.4%), 22 cases of cancer in right-lower lobe atelectasis (approximate 46.8%), 27 cases of cancer in left-upper lobe atelectasis (approximate 38.6%), 20 cases of inflammation in left-lower lobe atelectasis (approximate37.3%) and 14 case of neoplasm in whole left lobe atelectasis (approximate 33.3%). [Conclusions] The more common atelectasis is in right-middle lobe, then in right-upper lobe atelectasis, left-upper lobe atelectasis, left-lower lobe atelectasis, right-lower lobe atelectasis. The least common atelectasis is in whole left lobe. Cancer is the most common cause of atelectasis, then inflammation. Tuberculosis is still an important cause of atelectasis. Inflammation is the more common cause of right-middle lobe atelectasis and left-lower lobe atelectasis, while cancer is the more common cause of right-upper lobe atelectasis, left-upper lobe atelectasis and right-lower lobe atelectasis. Neoplasm is the principle cause of whole left lobe atelectasis.
Atelectasis
Lobe
Cite
Citations (0)