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How CH, Chen PH, Chen YC, Lin YC, Chen KC, Chen JS, Young TH. Safety assessment of poly- ε-caprolactone in the treatment of primary spontaneous pneumothorax. Front Surg 2024; 11:1335144. [PMID: 38313410 PMCID: PMC10834695 DOI: 10.3389/fsurg.2024.1335144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Background/purpose Biomaterial-based implants are gaining traction as an option for pleurodesis treatment, yet the search for the best biomaterial or the most suitable shape to handle spontaneous pneumothorax continues. This forward-looking research assessed the use of a poly-ε-caprolactone membrane for its safety when applied as a sclerosant in pleurodesis procedures in human patients. Methods From July 2017 to February 2018, we conducted a Phase I trial in which 10 patients with primary spontaneous pneumothorax were treated using video-assisted thoracoscopic surgery with a poly-ε-caprolactone membrane. These procedures encompassed bleb resection and mechanical pleurodesis through parietal pleura scrubbing. After resection, a 150 × 150 mm poly-ε-caprolactone membrane was applied to the apex. The primary outcome measures were the adverse events and laboratory outcomes. Results After surgery, we observed no cardiopulmonary-related adverse events or indications of systemic inflammation. Furthermore, no episodes of hypothermia or hyperthermia occurred. Chest radiographs showed no evident pneumonitis or effusion associated with tissue reactions. The average follow-up duration was 31.7 ± 17.7 months, during which two patients exhibited recurrence. Conclusion This study is the first to show the biocompatibility of poly-ε-caprolactone in humans, suggesting its potential as a treatment option for patients with primary spontaneous pneumothorax. Despite the relatively small number of patients, we maintain confidence in the reliability and safety profile of the PCL membrane, bolstered by its previously established efficacy in applications involving other organs. Phase II and phase III clinical studies are needed to support these observations.
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Affiliation(s)
- Cheng-Hung How
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei City, Taiwan
- Department of Surgery, Division of Thoracic Surgery, Far Eastern Memorial Hospital, Taipei City, Taiwan
| | - Pei-Hsing Chen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei City, Taiwan
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Yu-Ching Chen
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Yong-Chong Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei City, Taiwan
| | - Ke-Cheng Chen
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Jin-Shing Chen
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Tai-Horng Young
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei City, Taiwan
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Speck KE, Kulaylat AN, Baerg JE, Acker SN, Baird R, Beres AL, Chang H, Derderian SC, Englum B, Gonzalez KW, Kawaguchi A, Kelley-Quon L, Levene TL, Rentea RM, Rialon KL, Ricca R, Somme S, Wakeman D, Yousef Y, St Peter SD, Lucas DJ. Evaluation and Management of Primary Spontaneous Pneumothorax in Adolescents and Young Adults: A Systematic Review From the APSA Outcomes & Evidence-Based Practice Committee. J Pediatr Surg 2023; 58:1873-1885. [PMID: 37130765 DOI: 10.1016/j.jpedsurg.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/15/2023] [Accepted: 03/31/2023] [Indexed: 05/04/2023]
Abstract
INTRODUCTION Controversy exists in the optimal management of adolescent and young adult primary spontaneous pneumothorax. The American Pediatric Surgical Association (APSA) Outcomes and Evidence-Based Practice Committee performed a systematic review of the literature to develop evidence-based recommendations. METHODS Ovid MEDLINE, Elsevier Embase, EBSCOhost CINAHL, Elsevier Scopus, and Wiley Cochrane Central Register of Controlled Trials databases were queried for literature related to spontaneous pneumothorax between January 1, 1990, and December 31, 2020, addressing (1) initial management, (2) advanced imaging, (3) timing of surgery, (4) operative technique, (5) management of contralateral side, and (6) management of recurrence. The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines were followed. RESULTS Seventy-nine manuscripts were included. Initial management of adolescent and young adult primary spontaneous pneumothorax should be guided by symptoms and can include observation, aspiration, or tube thoracostomy. There is no evidence of benefit for cross-sectional imaging. Patients with ongoing air leak may benefit from early operative intervention within 24-48 h. A video-assisted thoracoscopic surgery (VATS) approach with stapled blebectomy and pleural procedure should be considered. There is no evidence to support prophylactic management of the contralateral side. Recurrence after VATS can be treated with repeat VATS with intensification of pleural treatment. CONCLUSIONS The management of adolescent and young adult primary spontaneous pneumothorax is varied. Best practices exist to optimize some aspects of care. Further prospective studies are needed to better determine optimal timing of operative intervention, the most effective operation, and management of recurrence after observation, tube thoracostomy, or operative intervention. LEVEL OF EVIDENCE Level 4. TYPE OF STUDY Systematic Review of Level 1-4 studies.
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Affiliation(s)
- K Elizabeth Speck
- Mott Children's Hospital, University of Michigan, Division of Pediatric Surgery, Ann Arbor, MI, USA.
| | - Afif N Kulaylat
- Penn State Children's Hospital, Division of Pediatric Surgery, Hershey, PA, USA
| | - Joanne E Baerg
- Presbyterian Health Services, Division of Pediatric Surgery, Albuquerque, NM, USA
| | | | - Robert Baird
- British Columbia Children's Hospital, Vancouver, Canada
| | - Alana L Beres
- St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Henry Chang
- Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | | | - Brian Englum
- University of Maryland Children's Hospital, Baltimore, MD, USA
| | | | | | | | | | - Rebecca M Rentea
- Children's Mercy-Kansas City, Department of Surgery, Kansas City, MO, USA
| | | | - Robert Ricca
- University of South Carolina, Greenville, SC, USA
| | - Stig Somme
- Children's Hospital Colorado, Aurora, CO, USA
| | | | - Yasmine Yousef
- Montreal Children's Hospital, McGill University, Montreal, Canada
| | - Shawn D St Peter
- Children's Mercy-Kansas City, Department of Surgery, Kansas City, MO, USA
| | - Donald J Lucas
- Division of Pediatric Surgery, Naval Medical Center San Diego, CA, USA; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
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Louw EH, Shaw JA, Koegelenberg CFN. New insights into spontaneous pneumothorax: A review. Afr J Thorac Crit Care Med 2021; 27:10.7196/AJTCCM.2021.v27i1.054. [PMID: 34240041 PMCID: PMC8203058 DOI: 10.7196/ajtccm.2021.v27i1.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2020] [Indexed: 11/15/2022] Open
Abstract
A spontaneous pneumothorax is a pneumothorax that does not arise from trauma or an iatrogenic cause. Although the traditional classification of either primary or secondary spontaneous pneumothorax based on the absence or presence of overt underlying lung disease is still widely used, it is now well recognised that primary spontaneous pneumothorax is associated with underlying pleuropulmonary disease. Current evidence indicates that computed tomography screening for underlying disease should be considered in patients who present with spontaneous pneumothorax. Recent evidence suggests that conservative management has similar recurrence rates, less complications and shorter hospital stay compared with invasive interventions, even in large primary spontaneous pneumothoraces of >50%. A more conservative approach which is based on clinical assessment rather than pneumothorax size can thus be followed during the acute management in selected stable patients. The purpose of this review is to revisit the aetiology of spontaneous pneumothorax, identify which patients should be investigated for secondary causes and to give an overview of the management strategies at initial presentation as well as secondary prevention.
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Affiliation(s)
- E H Louw
- Division of Pulmonology, Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
| | - J A Shaw
- Division of Pulmonology, Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
| | - C F N Koegelenberg
- Division of Pulmonology, Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
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Brophy S, Brennan K, French D. Recurrence of primary spontaneous pneumothorax following bullectomy with pleurodesis or pleurectomy: A retrospective analysis. J Thorac Dis 2021; 13:1603-1611. [PMID: 33841952 PMCID: PMC8024846 DOI: 10.21037/jtd-20-3257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background Primary spontaneous pneumothorax is managed initially with observation and chest tube placement, followed by surgical intervention in select cases. With little currently published evidence, the role of surgical pleurodesis or pleurectomy to reduce primary spontaneous pneumothorax recurrence is unclear. This study compares the recurrence rates of primary spontaneous pneumothorax following bullectomy alone versus bullectomy with pleurodesis or pleurectomy. Methods A retrospective review was performed at a quaternary hospital for all patients undergoing surgery for primary spontaneous pneumothorax between June 2006 and December 2018. Patient demographics, disease severity, operative technique, and time between initial surgery and recurrence were recorded. Standard statistical techniques were used for univariable and multivariable analyses. Results Of 222 total included patients, 28 required a second surgery: 4 (1.8%) for prolonged air leak and 24 (10.8%) for recurrent pneumothorax. The median time from first to second surgery was 363 days and 35.7% of recurrences did not present until after two years. Age, sex, smoking, year of initial surgery, disease severity, and surgical technique did not significantly affect recurrence rate on univariable analysis. On multivariable analysis, the odds ratios of recurrence for bullectomy with mechanical pleurodesis or pleurectomy were respectively 0.82 and 0.15 (P=0.218), compared to bullectomy alone. Combined bullectomy, pleurectomy, and pleurodesis was most effective (0/18, 0%). Conclusions Bullectomy with pleurectomy and pleurodesis demonstrated a 0% recurrence rate for the treatment of primary spontaneous pneumothorax in this study. Statistical significance was not achieved in univariable or multivariable analyses comparing recurrence rates for the surgical approaches. A multi-center randomized controlled trial with longer follow-up than previously performed is needed to confirm these preliminary findings and optimize surgical management of primary spontaneous pneumothorax.
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Affiliation(s)
- Shawn Brophy
- Division of General Surgery, Department of Surgery, Dalhousie University, Queen Elizabeth II Hospital - Victoria Campus, Halifax, NS, Canada
| | - Kelly Brennan
- Dalhousie Medical School, Department of Surgery, Dalhousie University, Queen Elizabeth II Hospital - Victoria Campus, Halifax, NS, Canada
| | - Daniel French
- Division of Thoracic Surgery, Department of Surgery, Dalhousie University, Queen Elizabeth II Hospital - Victoria Campus, Halifax, NS, Canada
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Hung WT, Chen HM, Wu CH, Hsu WM, Lin JW, Chen JS. Recurrence rate and risk factors for recurrence after thoracoscopic surgery for primary spontaneous pneumothorax: A nationwide population-based study. J Formos Med Assoc 2020; 120:1890-1896. [PMID: 33384212 DOI: 10.1016/j.jfma.2020.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/18/2020] [Accepted: 12/08/2020] [Indexed: 11/28/2022] Open
Abstract
PURPOSE This large-scale nationwide population-based study aimed to determine the recurrence rate and risk factors for recurrence after video-assisted thoracoscopic surgery (VATS) for primary spontaneous pneumothorax (PSP). METHODS This retrospective study used data from the Taiwan National Health Insurance Database to identify individuals who underwent VATS for PSP from 2007 to 2014. All patients were followed up until December 31, 2017. Study variables included demographic characteristics, intensive care unit admission, lung resection status, use of non-steroidal anti-inflammatory drugs (NSAIDs), and hospital level. The primary outcome was 1-year recurrence, and the secondary outcomes were the 1-year rate of reintervention for recurrence and overall recurrence rate. RESULTS During the study period, 6654 patients underwent VATS for PSP (average age: 23.2 years, 89.1% male), including 910 patients (13.7%) who experienced recurrence within 1 year and 531 patients (8.0%) who required reintervention within 1 year. The overall recurrence rate was 24.8%, with an average follow-up time of 6.7 years. Age ≤18 years and the use of NSAIDs, especially ketorolac, were significant risk factors for 1-year recurrence and overall recurrence. Younger age was a risk factor for 1-year reintervention. In subgroup analysis, NSAID use was a significant risk factor for 1-year recurrence, 1-year reintervention, and overall recurrence in pediatric patients but not in adult patients. CONCLUSIONS In Taiwan, the 1-year recurrence rate was 13.7% after VATS for PSP. Younger age and the use of NSAIDs, especially ketorolac, were significant risk factors for short- and long-term recurrence after VATS for PSP.
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Affiliation(s)
- Wan-Ting Hung
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan; Division of Pediatric Surgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ho-Min Chen
- Health Data Research Center, National Taiwan University, Taipei, Taiwan
| | - Chien-Hui Wu
- Department of Traumatology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Ming Hsu
- Division of Pediatric Surgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan; Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jou-Wei Lin
- Cardiovascular Center, National Taiwan University Hospital Yunlin Branch, Douliu City, Yunlin County, Taiwan
| | - Jin-Shing Chen
- Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan; National Taiwan University Cancer Center, Taipei, Taiwan.
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The accuracy of computed tomography in detecting surgically resectable blebs or bullae in primary spontaneous pneumothorax. Radiol Med 2019; 124:833-837. [PMID: 31134432 DOI: 10.1007/s11547-019-01044-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 05/13/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Chest computed tomography is commonly used in patients with primary spontaneous pneumothorax to detect the presence of pulmonary blebs or bullae. The aim of this study is to calculate the accuracy of chest computed tomography to detect surgically resectable blebs or bullae in patients with primary spontaneous pneumothorax. METHODS This is a retrospective study includes all patients with primary spontaneous pneumothorax who underwent chest computed tomography evaluation for their disease over the period from January 2005 to December 2015. Patients who underwent surgical exploration were sub-grouped to calculate the sensitivity and the specificity of the chest computed tomography to detect surgically resectable pulmonary blebs or bullae. RESULTS A total of 143 patients were included in the study. Among them, 120 patients underwent surgical exploration with the finding of 95.7% sensitivity and 42.3% specificity for the chest computed tomography in detection of surgically resectable pulmonary blebs or bullae. CONCLUSION The sensitivity of the chest computed tomography scan is high in detecting surgically resectable pulmonary blebs or bullae. However, the specificity is low. This may lead to overdiagnosis of the patients to have pulmonary blebs and bullae. Therefore, the routine use of chest computed tomography scan before the surgical exploration in patients with primary spontaneous pneumothorax should depend on the clinical judgment.
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Schnell J, Koryllos A, Lopez-Pastorini A, Lefering R, Stoelben E. Spontaneous Pneumothorax. DEUTSCHES ARZTEBLATT INTERNATIONAL 2018; 114:739-744. [PMID: 29169430 DOI: 10.3238/arztebl.2017.0739] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 03/13/2017] [Accepted: 07/31/2017] [Indexed: 01/13/2023]
Abstract
BACKGROUND Few reliable data are available on the epidemiology and treatment of spontaneous pneumothorax. We studied the sex and age distribution, frequency of hospitalization, mortality, and conservative versus surgical care of this condition in Germany in order to draw well-founded conclusions about its in-hospital diagnosis and treatment. METHODS Data from all patients aged 10 or older who were hospitalized in the period 2011-2015 with a main discharge diagnosis of pneumothorax of neither traumatic nor iatrogenic origin were retrieved from the German Federal Statistical Office. Because of their source, all data were based on case numbers rather than patient numbers. RESULTS During the period of the study, there were 52 738 admissions with the main diagnosis of spontaneous pneumothorax, corresponding to an annual frequency of hospitalization of 14.3 per 100 000 persons per year (95% confidence interval, 14.0 to 14.5). Men were more frequently affected than women. The lethality and in-hospital mortality of this condition (≤ 0.08% and ≤ 0.3%, respectively) were low among persons aged 15 to 45, but markedly higher in persons over age 90 (9.4% and 15.9%, respectively). The frequency of accompanying pulmonary diagnoses also rose with age. Computerized tomography (CT) was performed in 38.9-54.6% of hospitalizations, depending on age. Monitoring on an intensive care unit was carried out in 36% of cases. More than one-quarter of cases involved surgical treatment. CONCLUSION The danger to life and the likelihood of an accompanying pulmonary diagnosis are both low up to age 45. Treatment on an intensive care unit and computerized tomography of the chest should be performed only for strict indications in patients under age 45. The pathophysiological basis of the differing patterns of illness depending on age and sex requires further investigation.
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Affiliation(s)
- Jost Schnell
- Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln, Cologne, Germany
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Hsu HH, Chen JS. The etiology and therapy of primary spontaneous pneumothoraces. Expert Rev Respir Med 2015; 9:655-65. [DOI: 10.1586/17476348.2015.1083427] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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