Grace E Kim, Mahnoor Khan, Sunil Amin, Amrita Sethi
{"title":"Gastric Per-Oral Endoscopy Myotomy (G-POEM): Tips, Tricks, and Pitfalls.","authors":"Grace E Kim, Mahnoor Khan, Sunil Amin, Amrita Sethi","doi":"10.1007/s11894-024-00952-6","DOIUrl":"10.1007/s11894-024-00952-6","url":null,"abstract":"<p><strong>Purpose of review: </strong>The number of hospitalizations for gastroparesis has risen over 300% in recent decades with increased physical, psychological, and healthcare burdens. Gastric per-oral endoscopic myotomy (G-POEM) is a promising therapy for patients with refractory gastroparesis. This article reviews important considerations for G-POEM.</p><p><strong>Recent findings: </strong>Predictive factors for clinical success after G-POEM include diabetic and idiopathic gastroparesis, shorter gastroparesis duration, symptoms predominant of nausea and emesis, and gastric emptying study showing gastric retention of > 20% at 4 h. Mucosal closure is a critical step for G-POEM; both sutures and clips have high success rates, with clips having a trend to lower success rates but with significantly shorter procedure time and cheaper cost. G-POEMs have an overall 61% pooled success rate at one year with a yearly 13% symptom recurrence rate. A careful patient selection can yield higher clinical success rates. Further studies are needed on variant G-POEM techniques for more durable outcomes.</p>","PeriodicalId":10776,"journal":{"name":"Current Gastroenterology Reports","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anahita Alipanahi, Jonathan Oliveira Luiz, John J Rosowski, Cosme Furlong, Jeffrey Tao Cheng
{"title":"High-Speed Three-Dimensional-Digital Image Correlation and Schlieren Imaging Integrated With Shock Tube Loading for Investigating Dynamic Response of Human Tympanic Membrane Exposed to Blasts.","authors":"Anahita Alipanahi, Jonathan Oliveira Luiz, John J Rosowski, Cosme Furlong, Jeffrey Tao Cheng","doi":"10.1115/1.4066622","DOIUrl":"https://doi.org/10.1115/1.4066622","url":null,"abstract":"<p><p>Investigating the dynamic response of human tympanic membranes (TMs) exposed to blasts requires full-field-of-view and three-dimensional (3D) methodologies. Our paper introduces a system that combines high-speed 3D digital image correlation (HS 3D-DIC) and Schlieren imaging (HS-SI) with a custom-designed shock tube for generating blast waves. This integrated system allows us to measure TM surface motions under intense transient loading, capturing full-field-of-view shape deformations exceeding 100 <i>μ</i>m with a temporal resolution of 10 <i>μ</i>s. System characterization encompasses (i) measuring the shock tube's output levels and repeatability, (ii) assessment of the spatial and temporal resolutions of the imaging techniques, and (iii) identification of overall system limitations. Optimizing these factors is crucial for improving the reliability of our system to ensure the accurate measurement of deformations. To assess our shock tube's reliability in generating repeated blast waves, we instrumented it with high-pressure (HP) and high-frequency (HF) pressure sensors along the blast wave pathway to record overpressure waveforms and compared them with Schlieren imaging visualized blast waves. We validate our HS 3D-DIC measured deformations by comparing them with deformations measured using single-point laser Doppler vibrometry (LDV), establishing a comprehensive assessment of the TM's dynamic response and potential fracture mechanics under blast. Finally, we test our approach with 3D-printed TM-like samples and a real cadaveric human TM. This methodology lays the groundwork for further investigations of blast-related auditory damage and the invention of more effective protective and medical solutions.</p>","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515862/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shabnam Rahimnezhad, Tanzil M Arefin, Xiaoxiao Bai, Thomas Neuberger, Daniel Cortes
{"title":"Quantifying the Fascicular Changes in Recovered Achilles Tendon Patients Using Diffusion Magnetic Resonance Imaging and Tractography.","authors":"Shabnam Rahimnezhad, Tanzil M Arefin, Xiaoxiao Bai, Thomas Neuberger, Daniel Cortes","doi":"10.1115/1.4066623","DOIUrl":"https://doi.org/10.1115/1.4066623","url":null,"abstract":"<p><p>Regardless of the way of treatment, persistent deficits in calf muscles in recovered patients from Achilles tendon rupture (ATR) exist long-term postinjury. Studies on calf muscle changes mostly highlight morphological changes in the calf muscles and Achilles tendon. However, limited attention has been given to fascicular changes. Diffusion tensor imaging (DTI) can provide a better understanding of the characteristics and properties of tissues with organized microstructure. In the current study, we used DTI-derived indices (mean diffusivity (MD), fractional anisotropy (FA), and eigenvalues-<i>λ</i> <sub>1</sub>, <i>λ</i> <sub>2</sub>, and <i>λ</i> <sub>3</sub>) and fiber tractography to better understand the soleus muscle after recovery from ATR by comparing the results of injured legs with healthy ones. Our findings suggest that the standard deviations of measured parameters (FA, MD, and eigenvalues) within the soleus muscle are better predictors of the changes associated with the ATR as compared to the control counterpart for the volumetric region of interest (ROI). Additionally, in four out of five participants, smaller tracts were observed in the injured leg compared to the healthy one, as evidenced by the fiber length distribution of the tracts. Altogether, this study demonstrates the feasibility of the DTI and fiber tractography approaches to quantify the fascicular changes in the individuals recovered from ATR.</p>","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515863/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-09-25DOI: 10.4103/mgr.MEDGASRES-D-24-00031
Vicki L Mahan
{"title":"Heme oxygenase/carbon monoxide system and development of the heart.","authors":"Vicki L Mahan","doi":"10.4103/mgr.MEDGASRES-D-24-00031","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00031","url":null,"abstract":"<p><p>Progressive differentiation controlled by intercellular signaling between pharyngeal mesoderm, foregut endoderm, and neural crest-derived mesenchyme is required for normal embryonic and fetal development. Gasotransmitters (criteria: 1) a small gas molecule; 2) freely permeable across membranes; 3) endogenously and enzymatically produced and its production regulated; 4) well-defined and specific functions at physiologically relevant concentrations; 5) functions can be mimicked by exogenously applied counterpart; and 6) cellular effects may or may not be second messenger-mediated, but should have specific cellular and molecular targets) are integral to gametogenesis and subsequent embryogenesis, fetal development, and normal heart maturation. Important for in utero development, the heme oxygenase/carbon monoxide system is expressed during gametogenesis, by the placenta, during embryonic development, and by the fetus. Complex sequences of biochemical pathways result in the progressive maturation of the human heart in utero . The resulting myocardial architecture, consisting of working myocardium, coronary arteries and veins, epicardium, valves and cardiac skeleton, endocardial lining, and cardiac conduction system, determines function. Oxygen metabolism in normal and maldeveloping hearts, which develop under reduced and fluctuating oxygen concentrations, is poorly understood. \"Normal\" hypoxia is critical for heart formation, but \"abnormal\" hypoxia in utero affects cardiogenesis. The heme oxygenase/carbon monoxide system is important for in utero cardiac development, and other factors also result in alterations of the heme oxygenase/carbon monoxide system during in utero cardiac development. This review will address the role of the heme oxygenase/carbon monoxide system during cardiac development in embryo and fetal development.</p>","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515065/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-08-31DOI: 10.4103/mgr.MEDGASRES-D-23-00013
Sergio Pandolfi, Salvatore Chirumbolo, Marianno Franzini, Umberto Tirelli, Luigi Valdenassi
{"title":"Oxygen-ozone therapy for myocardial ischemic stroke and cardiovascular disorders.","authors":"Sergio Pandolfi, Salvatore Chirumbolo, Marianno Franzini, Umberto Tirelli, Luigi Valdenassi","doi":"10.4103/mgr.MEDGASRES-D-23-00013","DOIUrl":"10.4103/mgr.MEDGASRES-D-23-00013","url":null,"abstract":"<p><p>Cardiovascular diseases (CVDs) represent a major concern for human health worldwide. Emergencies in this field include wide repertories of studies dealing primarily with CVD prevention. In addition to dietary habits and lifestyles, medical knowledge is fully needed to improve public educational programs toward cardiovascular risk factors and to enrich the endowment of pharmaceutical options and therapies to address CVDs, particularly for ischemic damage due to an impairment in the endothelial-myocardial relationship. Because ozone is a stimulator of the endothelial nitric oxide synthase/nitric oxide pathway, ozone therapy has been widely demonstrated to have the ability to counteract endothelial-cardiac disorders, providing a novel straightforward opportunity to reduce the impact of CVDs, including atrial fibrillation. In this review, we attempt to establish a state-of-the-art method for the use of ozone in CVD, suggesting that future remarks be addressed to provide fundamental insights into this issue. The purpose of this study was to highlight the role of ozone in the adjunctive medical treatment of cardiovascular pathologies such as acute myocardial infarction due to ischemic disorders.</p>","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142109352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-09-25DOI: 10.4103/mgr.MEDGASRES-D-24-00046
Nan Wang, Yichao Tao, Yang Yang, Yuqin Jin, Hui Zhang, Cheng Li, Huanlong Qin, Qian Chen
{"title":"Disrupting the activity of endogenous gas neurotransmitters: a therapeutic strategy using engineered metal-organic frameworks for cancer.","authors":"Nan Wang, Yichao Tao, Yang Yang, Yuqin Jin, Hui Zhang, Cheng Li, Huanlong Qin, Qian Chen","doi":"10.4103/mgr.MEDGASRES-D-24-00046","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00046","url":null,"abstract":"","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515053/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142469834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-08-31DOI: 10.4103/mgr.MEDGASRES-D-24-00034
Hongqiu Li, Meiling Xiao, Feng Yang, Zhonghai Zhao, A Liang
{"title":"Hyperbaric oxygen treatment promotes tendon-bone interface healing in a rabbit model of rotator cuff tears.","authors":"Hongqiu Li, Meiling Xiao, Feng Yang, Zhonghai Zhao, A Liang","doi":"10.4103/mgr.MEDGASRES-D-24-00034","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00034","url":null,"abstract":"<p><p>Due to the high-intensity pressure that the shoulder cuff endures, it is prone to traumas and tears. The main critical function of the shoulder cuff muscles is to effectively facilitate shoulder movement and securely maintain the humeral head in the precise center of the joint cavity to prevent superior migration during abduction processes. Shoulder cuff injuries typically involve the muscle-tendon-bone interface, but existing repair techniques do not always guarantee complete and secure healing, leading to retears. Hyperbaric oxygen therapy, as an auxiliary treatment, can significantly promote the muscle-tendon-bone healing process. To explore the impact of hyperbaric oxygen therapy on the bone-tendon interface healing process in a rabbit model specifically designed for shoulder cuff tears, an experiment was conducted on New Zealand white rabbits by performing a full-thickness tear of the supraspinatus tendon in the left shoulder, followed by 2 hours per day of 100% oxygen treatment at 2 absolute atmospheres for 5 days. The results indicate that hyperbaric oxygen therapy significantly enhances vascularization at the interface between the shoulder cuff and tendon-bone, promotes collagen fiber regeneration in the tendon, improves the tensile strength of the tendon-bone complex, and does not have a significant effect on biomechanical stability. This suggests that hyperbaric oxygen therapy has a significant positive impact on the histological and biomechanical healing of shoulder cuff tears in rabbits, expediting the healing process of the tendon-bone interface.</p>","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515062/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142109351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correlation of lung function with brachial artery function and cardiac function in divers after hyperbaric exposure.","authors":"Lijun Yin, Tingting Zhang, Yukun Wen, Xuhua Yu, Jiajun Xu, Shifeng Wang, Wenwu Liu","doi":"10.4103/mgr.MEDGASRES-D-24-00037","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00037","url":null,"abstract":"","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515055/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142469833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-06-26DOI: 10.4103/mgr.MEDGASRES-D-24-00004
Ayobami Adebayo, Eyitayo Adebayo
{"title":"Not a laughing matter: revisiting nitric oxide as a potential target for glaucoma therapy.","authors":"Ayobami Adebayo, Eyitayo Adebayo","doi":"10.4103/mgr.MEDGASRES-D-24-00004","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00004","url":null,"abstract":"","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515057/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142469844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medical Gas ResearchPub Date : 2025-03-01Epub Date: 2024-04-21DOI: 10.4103/mgr.MEDGASRES-D-24-00013
Alejandro Rubio-Zarapuz, Jose A Parraca, José Francisco Tornero-Aguilera, Vicente J Clemente-Suárez
{"title":"Unveiling the link: exploring muscle oxygen saturation in fibromyalgia and its implications for symptomatology and therapeutic strategies.","authors":"Alejandro Rubio-Zarapuz, Jose A Parraca, José Francisco Tornero-Aguilera, Vicente J Clemente-Suárez","doi":"10.4103/mgr.MEDGASRES-D-24-00013","DOIUrl":"10.4103/mgr.MEDGASRES-D-24-00013","url":null,"abstract":"<p><p>Fibromyalgia, characterized as a complex chronic pain syndrome, presents with symptoms of pervasive musculoskeletal pain, significant fatigue, and pronounced sensitivity at specific anatomical sites. Despite extensive research efforts, the origins of fibromyalgia remain enigmatic. This narrative review explores the intricate relationship between muscle oxygen saturation and fibromyalgia, positing that disruptions in the oxygenation processes within muscle tissues markedly influence the symptom profile of this disorder. Muscle oxygen saturation, crucial for muscle function, has been meticulously investigated in fibromyalgia patients through non-invasive techniques such as near-infrared spectroscopy and magnetic resonance imaging. The body of evidence consistently indicates substantial alterations in oxygen utilization within muscle fibers, manifesting as reduced efficiency in oxygen uptake during both rest and physical activity. These anomalies play a significant role in fibromyalgia's symptomatology, especially in terms of chronic pain and severe fatigue, potentially creating conditions that heighten pain sensitivity and accumulate metabolic byproducts. Hypothesized mechanisms for these findings encompass dysfunctions in microcirculation, mitochondrial irregularities, and autonomic nervous system disturbances, all meriting further research. Understanding the dynamics of muscle oxygen saturation in fibromyalgia is of paramount clinical importance, offering the potential for tailored therapeutic approaches to alleviate symptoms and improve the quality of life for sufferers. This investigation not only opens new avenues for innovative research but also fosters hope for more effective treatment strategies and improved outcomes for individuals with fibromyalgia.</p>","PeriodicalId":18559,"journal":{"name":"Medical Gas Research","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515064/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142469847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}