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Hobbie HA, Doherty JL, Smith BN, Maccarini P, Franklin AD. Conformal printed electronics on flexible substrates and inflatable catheters using lathe-based aerosol jet printing. NPJ FLEXIBLE ELECTRONICS 2024; 8:54. [PMID: 39220232 PMCID: PMC11364510 DOI: 10.1038/s41528-024-00340-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024]
Abstract
With the growth of additive manufacturing (AM), there has been increasing demand for fabricating conformal electronics that directly integrate with larger components to enable unique functionality. However, fabrication of conformal electronics is challenging because devices must merge with host substrates regardless of curvilinearity, topography, or substrate material. In this work, we employ aerosol jet (AJ) printing, an AM method for jet printing electronics using ink-based materials, and a custom-made lathe mechanism for mounting flexible substrates and 3D objects on a rotating axis. Using this method of lathe-based AJ printing, conformal electronics are printed around the circumference of rotational bodies with 3D curvilinear surfaces through cylindrical-coordinate motion. We characterize the diverse capabilities of lathe AJ (LAJ) printing and demonstrate flexible conformal electronics including multilayer carbon nanotube transistors. Lastly, a graphene sensor is conformally printed on an inflated catheter balloon for temperature and inflation monitoring, thus highlighting the versatilities of LAJ printing.
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Affiliation(s)
- Hansel Alex Hobbie
- Department of Electrical and Computer Engineering, Duke University, Durham, NC USA
| | - James L. Doherty
- Department of Electrical and Computer Engineering, Duke University, Durham, NC USA
| | - Brittany N. Smith
- Department of Electrical and Computer Engineering, Duke University, Durham, NC USA
| | - Paolo Maccarini
- Department of Electrical and Computer Engineering, Duke University, Durham, NC USA
- Department of Anesthesiology, Duke University, Durham, NC USA
| | - Aaron D. Franklin
- Department of Electrical and Computer Engineering, Duke University, Durham, NC USA
- Department of Chemistry, Duke University, Durham, NC USA
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Adverse events associated with EGD and EGD-related techniques. Gastrointest Endosc 2022; 96:389-401.e1. [PMID: 35843754 DOI: 10.1016/j.gie.2022.04.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 04/21/2022] [Indexed: 01/10/2023]
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Endoscopic Incision Therapy for Benign Pyloric Stricture. ACG Case Rep J 2022; 9:e00855. [PMID: 36061254 PMCID: PMC9433062 DOI: 10.14309/crj.0000000000000855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 07/01/2022] [Indexed: 11/17/2022] Open
Abstract
We report that an 82-year-old woman with benign pyloric stricture and fibrous scars around the pylorus was safely treated with endoscopic incisional therapy using an insulation-tipped knife. At the 1-year follow-up endoscopy, the pylorus was open.
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Doğan S, Çakar E, Gürbulak B, Çolak Ş, Bektaş H, Tatar C. Endoscopic Procedures for Upper Gastrointestinal Tract Lesions and a Brief Review of Literature. ISTANBUL MEDICAL JOURNAL 2022. [DOI: 10.4274/imj.galenos.2022.27003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Can computed tomography-antral wall thickness predict response to endoscopic balloon dilation in patients with caustic-induced gastric outlet obstruction? Indian J Gastroenterol 2022; 41:190-197. [PMID: 35190977 DOI: 10.1007/s12664-021-01208-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/03/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Caustic-induced gastric outlet obstruction (GOO) remains one of the important causes of long-term morbidity in patients with caustic ingestion. Though endoscopic balloon dilation is an effective modality, response to caustic GOO is poorer as compared to peptic stricture. Computed tomography (CT)-antral wall thickness (AWT) has not been previously explored to predict the procedural success in patients with caustic GOO. METHODS In a retrospective single-center study of prospectively maintained database, all patients with symptomatic caustic GOO who underwent CT scan prior to endoscopic balloon dilation were included. Gastric AWT was measured at the site of maximum visible thickness on CT scan. Details regarding caustic ingestion and endoscopic dilation were retrieved. Patients were divided into two groups, based on CT-AWT (< or ≥9 mm) and compared for outcome measures. RESULTS Mean age of included patients (n=35) was 33.51 ± 13.65 years and 22 were male. Procedural success was achieved in 29 (82.85%) patients. Number of mean dilation sessions required were 5.28 ± 2.96 for achieving procedural success. The mean CT-AWT was 10.73 ± 2.80 mm (range 4-18 mm). There was no significant association between the CT-AWT and the number of dilations and procedural success. On univariate analysis, size of the first balloon used was a predictor of refractory stricture (p=0.011). However, no other factors predicted either refractory stricture or procedural success. CONCLUSION There is no additional role of CT-AWT in predicting response to endoscopic balloon dilation or to predict refractory stricture in patients with caustic GOO.
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Tustumi F, Seguro FCBDC, Szachnowicz S, Bianchi ET, Morrell ALG, da Silva MO, Duarte AF, de Sousa JHB, Laureano GG, da Rocha JRM, Sallum RAA, Cecconello I. Surgical management of esophageal stenosis due to ingestion of corrosive substances. J Surg Res 2021; 264:249-259. [PMID: 33839340 DOI: 10.1016/j.jss.2021.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Corrosive ingestion is a significant challenge for healthcare systems. Limited data are available regarding the best treatments, and there remains a lack of consensus about the optimal surgical approach and its outcomes. This study aims to review the current literature and show a single institution's experience regarding the surgical treatment of esophageal stenosis due to corrosive substance ingestion. METHODS A retrospective review that accounted for demographics, psychiatric profiles, surgical procedures, and outcomes was performed. A systematic review of the literature was performed using PubMed. RESULTS In total, 27 surgical procedures for esophageal stenosis due to corrosive substance ingestion were performed from 2010 to 2019. Depression and drug abuse were diagnosed in 30% and 22% of the included patients, respectively. Esophagectomies and esophageal bypasses were performed in 13 and 14 patients, respectively. No 30-day mortality was recorded. CONCLUSION Surgical intervention either by esophagectomy or esophageal bypass results in durable relief from dysphagia. However, successful clinical outcomes depend on a high-quality multidisciplinary network of esophageal and thoracic surgeons, intensivists, psychologists, psychiatrists, and nutritional teams.
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Affiliation(s)
- Francisco Tustumi
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil.
| | | | - Sérgio Szachnowicz
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | - Edno Tales Bianchi
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | - Andre Luiz Gioia Morrell
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | - Matheus Oliveira da Silva
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | - André Fonseca Duarte
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | | | - Gabriela Gomes Laureano
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
| | | | | | - Ivan Cecconello
- Digestive Surgery Division, Department of Gastroenterology, Universidade de São Paulo, São Paulo, Brazil
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Anand N, Sharma A, Shah J, Kochhar R, Singh SM. Quality of life in patients of corrosive esophageal stricture treated with endoscopic dilatation. JGH OPEN 2021; 5:301-306. [PMID: 33553671 PMCID: PMC7857296 DOI: 10.1002/jgh3.12490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 01/04/2023]
Abstract
Background and Aim Caustic ingestion is associated with long-term sequelae in the form of esophageal and/or gastric cicatrization requiring endoscopic or surgical intervention. Quality of life (QoL) and disability in patients with caustic-induced sequelae is less explored. Methods In this prospective study, we included consecutive patients with symptomatic caustic-induced esophageal stricture undergoing endoscopic dilatation. QoL was measured using the World Health Organization Quality of Life questionnaire (WHOQoL-BREF). Disability was measured using the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). Subjective dysphagia score was calculated by Likert scale. Results A total of 42 patients were included in the study; 25 (59.5%) patients were male. Patients had poor WHOQoL-BREF and WHODAS scores compared to normality data in all domains of the scores among both the genders. A majority (66.7%) of patients had a current psychiatric diagnosis, with the most common being mood disorder (50%) followed by suicidality (45.2%). Males had a higher prevalence of a previous psychiatric diagnosis compared to females, while females had a higher prevalence of suicidality. Dysphagia score had strong correlation with the WHOQoL (r = -0.66; P < 0.01) and WHODAS (r = 0.71; P < 0.01). Conclusion Patients with esophageal stricture due to caustic ingestion on long-term endoscopic dilatation have poor QoL, high prevalence of psychological morbidity, and disability.
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Affiliation(s)
- Naveen Anand
- Department of Psychiatry Postgraduate Institute of Medical Education and Research Chandigarh India
| | - Akhilesh Sharma
- Department of Psychiatry Postgraduate Institute of Medical Education and Research Chandigarh India
| | - Jimil Shah
- Department of Gastroenterology Postgraduate Institute of Medical Education and Research Chandigarh India
| | - Rakesh Kochhar
- Department of Gastroenterology Postgraduate Institute of Medical Education and Research Chandigarh India
| | - Shubh Mohan Singh
- Department of Psychiatry Postgraduate Institute of Medical Education and Research Chandigarh India
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Jeong SJ, Lee J. Management of gastric outlet obstruction: Focusing on endoscopic approach. World J Gastrointest Pharmacol Ther 2020; 11:8-16. [PMID: 32550041 PMCID: PMC7288729 DOI: 10.4292/wjgpt.v11.i2.8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/14/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Gastric outlet obstruction (GOO) is a medical condition characterized by epigastric pain and postprandial vomiting due to mechanical obstruction. The obstructions typically involved in GOO can be benign or malignant. Peptic ulcer disease is the most common cause of benign GOO, and malignant causes include gastric cancer, lymphoma, and gastrointestinal stromal tumor. With the eradication of Helicobacter pylori (H. pylori) and the use of proton pump inhibitors, the predominant causes have changed from benign to malignant diseases. Treatment of GOO depends on the underlying cause: Proton pump inhibitors, H. pylori eradication, endoscopic treatments including balloon dilatation or the placement of self-expandable stents, or surgery.
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Affiliation(s)
- Su Jin Jeong
- Division of Gastroenterology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan 48108, South Korea
| | - Jin Lee
- Division of Gastroenterology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan 48108, South Korea
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Liang C, Tan Y, Lu J, Le M, Liu D. Endoscopic incision for treatment of benign gastrointestinal strictures. Expert Rev Gastroenterol Hepatol 2020; 14:445-452. [PMID: 32380885 DOI: 10.1080/17474124.2020.1766966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Benign gastrointestinal strictures are common, and can be congenital or acquired (anastomotic, corrosive, induced by Crohn's disease or endoscopic treatments, etc.). Patients usually present with stricture-related symptoms such as vomiting, dysphagia, dyschezia, abdominal pain, which impair their quality of life. Endoscopic balloon dilation (EBD) is the first-line treatment for most of the benign strictures; however, long-term efficacy is suboptimal, and the recurrence rate can be up to 38%. Endoscopic incision (EI) was firstly reported for treatment of congenital membranous stricture, and then applied to other benign gastrointestinal strictures. AREA COVERED In the present review, we provided a comprehensive review of EI for the treatment of benign gastrointestinal strictures, mainly focus on the technical details, indication, safety, and efficacy of EI. The present review is expected to provide tips for operators who are going to perform EI. EXPERT OPINION EI can serve as an alternative method for treatment of gastrointestinal strictures, the best indications are congenital membranous stricture and short-segmental (<1 cm) anastomotic strictures refractory to EBD. EI may also be attempted for strictures induced by other reasons. Combination with other endoscopic methods such as EBD, local steroid injection, stent placement, may improve the efficacy of EI.
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Affiliation(s)
- Chengbai Liang
- Department of Gastroenterology, The Second Xiangya Hospital , Changsha, Hunan, China.,Research Center of Digestive Disease, Central South University , Changsha, Hunan, China
| | - Yuyong Tan
- Department of Gastroenterology, The Second Xiangya Hospital , Changsha, Hunan, China.,Research Center of Digestive Disease, Central South University , Changsha, Hunan, China
| | - Jiaxi Lu
- Department of Gastroenterology, The Second Xiangya Hospital , Changsha, Hunan, China.,Research Center of Digestive Disease, Central South University , Changsha, Hunan, China
| | - Meixian Le
- Department of Gastroenterology, The Second Xiangya Hospital , Changsha, Hunan, China.,Research Center of Digestive Disease, Central South University , Changsha, Hunan, China
| | - Deliang Liu
- Department of Gastroenterology, The Second Xiangya Hospital , Changsha, Hunan, China.,Research Center of Digestive Disease, Central South University , Changsha, Hunan, China
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Tringali A, Giannetti A, Adler DG. Endoscopic management of gastric outlet obstruction disease. Ann Gastroenterol 2019. [PMID: 31263354 DOI: 10.20524/aog.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Gastric outlet obstruction (GOO) is a clinical syndrome characterized by a variety of symptoms. It may be caused by motor disorders and by benign or malignant mechanical disease. Endoscopic management of benign disease is mainly based on balloon dilation, augmented by the use of covered self-expanding metal stents (SEMS) in refractory disease. Endoscopic ultrasound-guided gastroenterostomy (EUS-GE) is increasingly used as an alternative method, although more studies with longer follow up are needed before it can be considered as a recommended therapy. Surgery remains the last resort. Endoscopic management of malignant GOO is based on SEMS placement as an alternative to palliative surgery, because it is a cost-effective method. The use of a covered or uncovered stent depends on patient-related variables, which include the stricture site, concomitant involvement of the bile duct, the patient's prognosis, probably the tumor type, and the use of chemotherapy. EUS-GE is a promising technique but needs more studies with longer follow up before any firm conclusions can be drawn.
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Affiliation(s)
- Alberto Tringali
- Endoscopy Unit Surgical Department, ASST GOM Niguarda, Milan, Italy (Alberto Tringali, Aurora Giannetti)
| | - Aurora Giannetti
- Endoscopy Unit Surgical Department, ASST GOM Niguarda, Milan, Italy (Alberto Tringali, Aurora Giannetti).,Section of Gastroenterology, Biomedical Department of Internal and Specialized Medicine (DI.BI.M.I.S.), University of Palermo, Palermo, Italy (Aurora Giannetti)
| | - Douglas G Adler
- Gastroenterology, and Hepatology Department, University of Utah School of Medicine, Salt Lake City, Utah USA (Douglas G. Adler)
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Tringali A, Giannetti A, Adler DG. Endoscopic management of gastric outlet obstruction disease. Ann Gastroenterol 2019; 32:330-337. [PMID: 31263354 PMCID: PMC6595925 DOI: 10.20524/aog.2019.0390] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/07/2019] [Indexed: 12/14/2022] Open
Abstract
Gastric outlet obstruction (GOO) is a clinical syndrome characterized by a variety of symptoms. It may be caused by motor disorders and by benign or malignant mechanical disease. Endoscopic management of benign disease is mainly based on balloon dilation, augmented by the use of covered self-expanding metal stents (SEMS) in refractory disease. Endoscopic ultrasound-guided gastroenterostomy (EUS-GE) is increasingly used as an alternative method, although more studies with longer follow up are needed before it can be considered as a recommended therapy. Surgery remains the last resort. Endoscopic management of malignant GOO is based on SEMS placement as an alternative to palliative surgery, because it is a cost-effective method. The use of a covered or uncovered stent depends on patient-related variables, which include the stricture site, concomitant involvement of the bile duct, the patient’s prognosis, probably the tumor type, and the use of chemotherapy. EUS-GE is a promising technique but needs more studies with longer follow up before any firm conclusions can be drawn.
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Affiliation(s)
- Alberto Tringali
- Endoscopy Unit Surgical Department, ASST GOM Niguarda, Milan, Italy (Alberto Tringali, Aurora Giannetti)
| | - Aurora Giannetti
- Endoscopy Unit Surgical Department, ASST GOM Niguarda, Milan, Italy (Alberto Tringali, Aurora Giannetti).,Section of Gastroenterology, Biomedical Department of Internal and Specialized Medicine (DI.BI.M.I.S.), University of Palermo, Palermo, Italy (Aurora Giannetti)
| | - Douglas G Adler
- Gastroenterology, and Hepatology Department, University of Utah School of Medicine, Salt Lake City, Utah USA (Douglas G. Adler)
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