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Gulinac M, Kiprin G, Tsranchev I, Graklanov V, Chervenkov L, Velikova T. Clinical issues and challenges in imaging of gastrointestinal diseases: A minireview and our experience. World J Clin Cases 2024; 12:3304-3313. [PMID: 38983422 PMCID: PMC11229912 DOI: 10.12998/wjcc.v12.i18.3304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/25/2024] [Accepted: 05/06/2024] [Indexed: 06/13/2024] Open
Abstract
Imaging techniques play a crucial role in the modern era of medicine, particularly in gastroenterology. Nowadays, various non-invasive and invasive imaging modalities are being routinely employed to evaluate different gastrointestinal (GI) diseases. However, many instrumental as well as clinical issues are arising in the area of modern GI imaging. This minireview article aims to briefly overview the clinical issues and challenges encountered in imaging GI diseases while highlighting our experience in the field. We also summarize the advances in clinically available diagnostic methods for evaluating different diseases of the GI tract and demonstrate our experience in the area. In conclusion, almost all imaging techniques used in imaging GI diseases can also raise many challenges that necessitate careful consideration and profound expertise in this field.
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Affiliation(s)
- Milena Gulinac
- Department of General and Clinical Pathology, Medical University of Plovdiv, Plovdiv 4002, Bulgaria
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Georgi Kiprin
- Department of Gastroenterology, MHAT Eurohospital, Plovdiv 4000, Bulgaria
| | - Ivan Tsranchev
- Department of Forensic Medicine and Deontology, Medical University of Plovdiv, Plovdiv 4000, Bulgaria
| | - Vasko Graklanov
- First Department of Internal Diseases, Medical University of Plovdiv, Plovdiv 4000, Bulgaria
| | - Lyubomir Chervenkov
- Department of Diagnostic Imaging, Medical University Plovdiv, Plovdiv 4000, Bulgaria
| | - Tsvetelina Velikova
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
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Di Capua F, Cesana GC, Uccelli M, De Carli SM, Giorgi R, Ferrari D, Olmi S. Sleeve Gastrectomy with Rossetti Fundoplication Increases Lower Esophageal Sphincter Tone Preventing Gastroesophageal Reflux Disease: High-Resolution Manometry Assessment. J Laparoendosc Adv Surg Tech A 2023; 33:44-51. [PMID: 35675688 DOI: 10.1089/lap.2022.0123] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background: Laparoscopic sleeve gastrectomy (LSG) is associated with the long-term development of gastroesophageal reflux disease (GERD). Recent studies on LSG with fundoplication showed a lower rate of postoperative GERD than LSG alone; however, there is a lack of objective instrumental data in the literature. This study aimed to evaluate whether and how fundoplication associated with Sleeve Gastrectomy affects the esophagogastric physiology. Materials and Methods: This prospective observational study included 20 patients with morbid obesity, GERD, and lower esophageal sphincter (LES) hypotonia. All the patients underwent LSG with Rossetti fundoplication. High-resolution manometry was performed pre- and postoperatively. All the patients completed the 6 months follow-up. Results: The fundoplication increased LES tone in all patients. The increase in the LES tone was statistically significant (330% increase). The integrated relaxation pressure and the distal contractile integral both increased accordingly, indicating an increased esophageal effort to pass through the modified esophagogastric junction. Conclusion: Rossetti fundoplication associated with LSG increased LES tone and decreased the chance of developing long-term GERD after LSG.
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Affiliation(s)
- Francesco Di Capua
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
| | - Giovanni Carlo Cesana
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
| | - Matteo Uccelli
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
| | - Stefano Maria De Carli
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
| | - Riccardo Giorgi
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
| | - Davide Ferrari
- General Surgery Residency Program, University of Milan, Milan, Italy
| | - Stefano Olmi
- General and Oncologic Surgery Department, Centre of Advanced Laparoscopic Surgery, Centre of Bariatric Surgery, San Marco Hospital GSD, Osio Sotto, Italy
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Abdul-Razakq H, Emmanuel A, Brugaletta C, Sweis R, Perring S. An investigation into the effect of nasogastric intubation on markers of autonomic nervous function. Neurogastroenterol Motil 2022; 34:e14214. [PMID: 34337828 DOI: 10.1111/nmo.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/23/2021] [Accepted: 06/07/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Nasogastric (NG) intubation for esophageal manometry can be traumatic and may be associated with a temporary reduction/absence in esophageal peristalsis. This study explored the prevalence and effect on esophageal motor function. We also hypothesized that baseline anxiety as well as markers of autonomic nerve function were correlated to attenuated esophageal peristalsis. METHODS Twenty-seven patients with esophageal symptoms referred for esophageal manometry investigation (mean age 56.8 ± 16.7 years, range 23-85 years) reported baseline anxiety score (Likert scale) preintubation. Patients had continuous heart rate and blood pressure measured prior to intubation and until 10 min after catheter withdrawal. Quality of motility was assessed for each 5 ml water swallow using standard Chicago Classification metrics. KEY RESULTS Nasogastric-intubation elicited a significant increase in heart rate (p < 0.001), systolic (p < 0.001) and diastolic (p < 0.001) blood pressure, which was in part anticipatory. The median time taken for patients' first hypotensive peristalsis (Distal Contractile Integral; DCI ≥100 mmHg s cm) was 130 s (Interquartile range; 47-242 s) and for their first normal peristalsis (DCI ≥450 mm Hg s cm) was 150 s (IQR 61-320 s), with improvement and consistent stabilization in DCI there onward. This corresponded closely to the time for initial recovery of heart rate and systolic and diastolic blood pressure postintubation. CONCLUSIONS AND INFERENCES Nasogastric intubation resulted in heightened sympathetic responses and/or dampened parasympathetic responses, and an associated temporary reduction or absence in esophageal peristalsis.
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Affiliation(s)
- Humayra Abdul-Razakq
- GI Physiology Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Anton Emmanuel
- GI Physiology Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Concetta Brugaletta
- GI Physiology Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Rami Sweis
- GI Physiology Unit, University College London Hospitals NHS Foundation Trust, London, UK
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Kwak S, Choo YJ, Choi KT, Chang MC. Safety and Efficacy of Specially Designed Texture-Modified Foods for Patients with Dysphagia Due to Brain Disorders: A Prospective Study. Healthcare (Basel) 2021; 9:healthcare9060728. [PMID: 34199175 PMCID: PMC8231767 DOI: 10.3390/healthcare9060728] [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] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 11/16/2022] Open
Abstract
Providing texture-modified food for patients with dysphagia is a cornerstone of dysphagia treatment. This study aimed to evaluate the safety and efficacy of a specially designed texture-modified food that can be easily swallowed while maintaining the unique taste by adjusting hardness and adhesiveness in patients with brain disorders using a videofluoroscopic swallowing study. We included 101 patients with oropharyngeal dysphagia due to brain disorders who were referred to the rehabilitation department. To evaluate the safety and efficacy of a specially designed texture-modified food, rice gruel was compared with a regular instant rice porridge, and bulgogi mousse was compared with ground bulgogi, which normally serves as a texture-modified diet for patients with dysphagia in our hospital during the videofluoroscopic swallowing study. The Penetration–Aspiration Scale score, oropharyngeal transit time, number of swallows required to maximally eliminate food materials from the oropharyngeal space, and vallecular and pyriform sinus residue after swallowing scale score were compared. Rice gruel required a shorter oropharyngeal transit time and fewer number of swallowing per the given amount of food than regular instant rice porridge; however, no statistical difference was found in the vallecular and pyriform sinus residue after swallowing scale scores and the Penetration–Aspiration Scale scores. Bulgogi mousse required more swallowing and had lower Penetration–Aspiration Scale scores than ground bulgogi; however, no significant difference was found in the oropharyngeal transit time and the vallecular and pyriform sinus residue after swallowing scale scores. The study foods were safe and efficacious compared to control foods usually provided for patients with dysphagia from various brain disorders.
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Arcos-Machancoses JV, García Tirado D, Vila Miravet V, Pujol Muncunill G, Pinillos Pisón S, Martín de Carpi J. What is the best method for calculating the optimal position of an esophageal pH probe in children? Dis Esophagus 2019; 32:5393324. [PMID: 30888408 DOI: 10.1093/dote/doz014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In assessment of distal esophageal pH, the sensor of the probe should be placed above the upper border of the lower esophageal sphincter. There are several methods to estimate the distance from the nose where the probe should be fixed according to the patient's height. We studied the accuracy of these methods. Data of patients who underwent esophageal monitoring were collected prospectively. The esophageal pH electrode was set with the aid of fluoroscopy in all cases, considering the location recommended by the current guideline. Esophageal probe position and anthropometric data of each patient were recorded. We compared the actual esophageal pH electrode distance from the nose with that estimated by Nowak's, Strobel's, Staiano-Clouse's, and Moreau's formulae and the Great Ormond Street Hospital (GOSH) table. A total of 98 patients were included, with ages ranging from 2 months to 19 years old. The highest success rate (67%) for all age groups was achieved by Nowak's formula (3.2 + 0.2 × height in cm). Considering only children under 3 years old, the GOSH table reached the highest-yet probably overestimated-fraction of adequate predictions. A corrected Staiano and Clouse's formula (4.28 + 0.191 × height in cm) had a slightly lower success rate than Nowak's due to a poorer performance in younger children. In conclusion, Nowak's formula is the most accurate regardless of age. It can help reduce radiation due to systematic fluoroscopy, as well as the subsequent manipulation of the esophageal probe. However, it still leads to pH sensor misplacements in more than one-third of children. In consequence, a confirmatory X-ray is advisable even after using the formula.
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Affiliation(s)
- J V Arcos-Machancoses
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
| | - D García Tirado
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
| | - V Vila Miravet
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
| | - G Pujol Muncunill
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
| | - S Pinillos Pisón
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
| | - J Martín de Carpi
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Catalonia, Spain
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Van Den Abeele J, Rubbens J, Brouwers J, Augustijns P. The dynamic gastric environment and its impact on drug and formulation behaviour. Eur J Pharm Sci 2017; 96:207-231. [DOI: 10.1016/j.ejps.2016.08.060] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 08/30/2016] [Accepted: 08/30/2016] [Indexed: 02/08/2023]
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la Fuente EBD, Turcanu M, Ekberg O, Gallegos C. Rheological Aspects of Swallowing and Dysphagia: Shear and Elongational Flows. Dysphagia 2017. [DOI: 10.1007/174_2017_119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Liu R, Chu H, Xu F, Chen S. Esophageal cancer diagnosed by high-resolution manometry of the esophagus: A case report. Oncol Lett 2016; 11:3131-3134. [PMID: 27123076 DOI: 10.3892/ol.2016.4332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/24/2016] [Indexed: 01/13/2023] Open
Abstract
A 48-year-old female who presented with a history of dysphagia for 5 months and regurgitation for 1 week was referred to the Sir Run Run Shaw Hospital (Hangzhou, China) for further evaluation, since the gastroscopy and endoscopic ultrasound performed in local hospitals did not reveal the presence of cancer. High-resolution manometry (HRM) of the esophagus was performed to determine the patient's condition, and revealed an abnormal high-pressure zone that was located 33 cm from the incisor and did not relax upon swallowing. Synchronous waves were observed, and the pressure of the esophageal lumen was found to increase with secondary synchronous peristaltic waves. The lower esophageal sphincter was 39 cm from the incisor and relaxed upon swallowing. The abnormal high-pressure zone could have been caused by an obstruction, and therefore an upper gastrointestinal series (barium swallow) test and gastroscopy were recommended to further pinpoint the cause. Following the two examinations, mid-esophageal cancer was considered as a possible diagnosis. A biopsy was performed and the final diagnosis was that of basaloid squamous cell carcinoma. The findings of the present study suggest that, for patients with evident symptoms of esophageal motor dysfunction without significant gastroscopy findings, HRM is recommended.
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Affiliation(s)
- Rongbei Liu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China; Institute of Gastroenterology, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Hua Chu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Fei Xu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Shujie Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China; Institute of Gastroenterology, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
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Mutalib M, Sintusek P, Punpanich D, Thapar N, Lindley K. A new method to estimate catheter length for esophageal multichannel intraluminal impedance monitoring in children. Neurogastroenterol Motil 2015; 27:728-33. [PMID: 25824711 DOI: 10.1111/nmo.12547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 02/18/2015] [Indexed: 01/02/2023]
Abstract
BACKGROUND Multichannel intraluminal impedance combined with pH (MII-pH) is the gold standard test for diagnosing gastro-esophageal reflux disease (GERD). It provides an opportunity to study acid and non-acid GOR and temporal association between symptoms and reflux. Accurate catheter placement is essential to prevent erroneous recording of reflux events. The aims of our study were to assess the accuracy of our devised method in predicting the catheter length for MII-pH in children (Great Ormond Street Hospital (GOSH) Table) and to compare the results with Strobel and Monreau methods. METHODS Retrospective review of all records of infants and children who underwent MII-pH studies between January to October 2014. Desired catheter position was calculated using Strobel, Monreau and GOSH formulas and compared to X ray position. KEY RESULTS One hundred and forty-four children were included; mean age was 5.1 (±4.5) years, 73 males and 71 females. In the whole group, the correlation between desired catheter position and GOSH Table was 0.95, for Strobel was 0.84, and Monreau was 0.85. In the first group (age <3 years), the correlation was: GOSH Table 0.91, Strobel 0.56, and Monreau 0.6; in the second group (3-10 years): GOSH Table 0.78, Strobel 0.82, and Monreau 0.82; the third group (>10 years): GOSH 0.81, Strobel 0.43, and Monreau 0.43. CONCLUSIONS & INFERENCES GOSH Table is an accurate method to estimate the insertion length of MII-pH catheters from nares to a point of approximately two vertebral bodies above the diaphragm in children. Although radiography is required to confirm final catheter position, using GOSH Table will reduce the need for repeated catheter manipulation after initial insertion and will reduce the use of a mathematically complicated formulae.
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Affiliation(s)
- M Mutalib
- Department of Paediatric Gastroenterology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
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Witteman BPL, Conchillo JM, Rinsma NF, Betzel B, Peeters A, Koek GH, Stassen LPS, Bouvy ND. Randomized controlled trial of transoral incisionless fundoplication vs. proton pump inhibitors for treatment of gastroesophageal reflux disease. Am J Gastroenterol 2015; 110:531-42. [PMID: 25823768 DOI: 10.1038/ajg.2015.28] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 12/02/2014] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Transoral incisionless fundoplication (TIF) was developed in an attempt to create a minimally invasive endoscopic procedure that mimics antireflux surgery. The objective of this trial was to evaluate effectiveness of TIF compared with proton pump inhibition in a population consisting of gastroesophageal reflux disease (GERD) patients controlled with proton pump inhibitors (PPIs) who opted for an endoscopic intervention over lifelong drug dependence. METHODS Patients with chronic GERD were randomized (2:1) for TIF or continuation of PPI therapy. American Society of Anesthesiologists >2, body mass index >35 kg/m(2), hiatal hernia >2 cm, and esophageal motility disorders were exclusion criteria. Primary outcome measure was GERD-related quality of life. Secondary outcome measures were esophageal acid exposure, number of reflux episodes, PPI usage, appearance of the gastroesophageal valve, and healing of reflux esophagitis. Crossover for the PPI group was allowed after 6 months. RESULTS A total of 60 patients (TIF n=40, PPI n=20, mean body mass index 26 kg/m(2), 37 male) were included. At 6 months, GERD symptoms were more improved in the TIF group compared with the PPI group (P<0.001), with a similar improvement of distal esophageal acid exposure (P=0.228) compared with baseline. The pH normalization for TIF group and PPI group was 50% and 63%, respectively. All patients allocated for PPI treatment opted for crossover. At 12 months, quality of life remained improved after TIF compared with baseline (P<0.05), but no improvement in esophageal acid exposure compared with baseline was found (P=0.171) and normalization of pH was accomplished in only 29% in conjunction with deteriorated valve appearances at endoscopy and resumption of PPIs in 61%. CONCLUSION Although TIF resulted in an improved GERD-related quality of life and produced a short-term improvement of the antireflux barrier in a selected group of GERD patients, no long-term objective reflux control was achieved.
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Affiliation(s)
- Bart P L Witteman
- 1] Department of Surgery, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands [2] Department of Surgery, Rijnstate Hospital, Arnhem, The Netherlands
| | - Jose M Conchillo
- Department of Gastroenterology and Hepatology, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Nicolaas F Rinsma
- Department of Gastroenterology and Hepatology, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Bark Betzel
- Department of Surgery, Rijnstate Hospital, Arnhem, The Netherlands
| | - Andrea Peeters
- Department of Clinical Epidemiolgy and Medical Technology Assessment, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Ger H Koek
- Department of Gastroenterology and Hepatology, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Laurents P S Stassen
- Department of Surgery, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Nicole D Bouvy
- Department of Surgery, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
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Park JW, Kwon BS, Chang JH, Sim KB. Nasal backflow and the difficulty of relaxation in the upper esophageal sphincter. Laryngoscope 2012; 123:966-8. [PMID: 23169569 DOI: 10.1002/lary.23706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2012] [Indexed: 11/06/2022]
Abstract
OBJECTIVES/HYPOTHESIS Nasal backflow is the regurgitation of material into nasopharynx during swallowing and it can be easily observed by videofluoroscopy. We aimed to evaluate the association between nasal backflow and the prevalence of aspiration, as well as the relationship between nasal backflow and the opening of the upper esophageal sphincter. STUDY DESIGN Retrospective case-control study. METHODS There were 182 cases of videofluoroscopic swallowing studies that were retrospectively reviewed. The presence of nasal backflow and laryngeal aspirations were checked, and the anteroposterior maximum width of the upper esophageal sphincter opening was measured on lateral images of videofluoroscopic swallowing studies. The difference in maximum upper esophageal sphincter width between the group with nasal backflow and the group without nasal backflow was statistically verified. RESULTS Twenty patients showed nasal backflow, which was closely related to laryngeal aspiration (odds ratio = 10.97; 95% CI = 2.46-48.85; P < 0.05). Their maximal upper esophageal sphincter width (mean ± standard deviation) was 6.82 ± 1.96 mm and significantly different from the group without nasal backflow (9.35 ± 1.56 mm) (P < 0.05). CONCLUSION Nasal backflow was closely associated with the presence of aspiration; the opening of upper esophageal sphincters significantly decreased in the cases of nasal backflow.
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Affiliation(s)
- Jin-Woo Park
- Department of Physical Medicine and Rehabilitation, Dongguk University Ilsan Hospital, Gyeonggi-do, Republic of Korea.
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Abstract
BACKGROUND High-resolution manometry (HRM) represents a valuable tool for the evaluation of peristalsis in the oesophagus. Due to the wide spacing of the pressure transducers, however, examination of the upper oesophageal sphincter's relaxation period has not proved satisfactory as yet. DESIGN A feasibility study was carried out to clarify whether evaluation of the upper oesophageal sphincter's behaviour during swallows is possible using a catheter with very closely spaced pressure transducers. SETTING University hospital. PROCEDURE Healthy subjects were analysed using a specially developed catheter as well as a modified software to evaluate whether swallow-associated behaviour could be verified. RESULTS Interpreting pressure profiles in terms of resting pressure, residual pressure, relaxation time and maximum peristaltic pressure proved to be feasible. The present analysis supports the existence of distinct dynamic swallow-associated phases, which conform to the phases that had previously been postulated. An additional initial phase, however, should be added. CONCLUSION This newly created catheter design in combination with the modified software enable a very detailed evaluation of the sphincter's swallow-associated behaviour and represent a valuable, minimally invasive tool with no exposure to radiation for dysphagia diagnosis as well as treatment planning.
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Affiliation(s)
- S Meyer
- Klinik und Poliklinik für Phoniatrie und Pädaudiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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Kessing BF, Conchillo JM, Bredenoord AJ, Smout AJPM, Masclee AAM. Review article: the clinical relevance of transient lower oesophageal sphincter relaxations in gastro-oesophageal reflux disease. Aliment Pharmacol Ther 2011; 33:650-61. [PMID: 21219371 DOI: 10.1111/j.1365-2036.2010.04565.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Transient lower oesophageal sphincter relaxations (TLOSR) are considered the physiological mechanism that enables venting of gas from the stomach and appear as sphincter relaxations that are not induced by swallowing. It has become increasingly clear that most reflux episodes occur during TLOSRs and therefore play a key role in gastro-oesophageal reflux disease (GERD). AIM To describe the current knowledge about TLOSRs and its clinical implications. METHODS Search of the literature published in English using the PubMed database and relevant abstracts presented at international conventions. RESULTS Several factors influence the rate of TLOSRs including anti-reflux surgery, meal, body position, nutrition, lifestyle and a wide array of neurotransmitters. Ongoing insights in the neurotransmitters responsible for the modulation of TLOSRs, as well as the neural pathways involved in TLOSR induction, have lead to novel therapeutic targets. These therapeutic targets can serve as an add-on therapy in patients with an unsatisfactory response to proton pump inhibitor by inhibiting TLOSRs and its associated reflux events. However, the TLOSR-inhibiting drugs that are currently available still have significant side effects. CONCLUSION It is likely that in the future, selected GERD patients may benefit from transient lower oesophageal sphincter relaxation inhibition when compounds are found without significant side effects.
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Affiliation(s)
- B F Kessing
- Department of Gastroenterology and Hepatology, Academic Medical Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
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Pratap N, Kalapala R, Darisetty S, Joshi N, Ramchandani M, Banerjee R, Lakhtakia S, Gupta R, Tandan M, Rao GV, Reddy DN. Achalasia cardia subtyping by high-resolution manometry predicts the therapeutic outcome of pneumatic balloon dilatation. J Neurogastroenterol Motil 2011; 17:48-53. [PMID: 21369491 PMCID: PMC3042218 DOI: 10.5056/jnm.2011.17.1.48] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND/AIMS High-resolution manometry (HRM) with pressure topography is used to subtype achalasia cardia, which has therapeutic implications. The aim of this study was to compare the clinical characteristics, manometric variables and treatment outcomes among the achalasia subtypes based on the HRM findings. METHODS The patients who underwent HRM at the Asian Institute of Gastroenterology, Hyderabad between January 2008 and January 2009 were enrolled. The patients with achalasia were categorized into 3 subtypes: type I - achalasia with minimum esophageal pressurization, type II - achalasia with esophageal compression and type III - achalasia with spasm. The clinical and manometric variables and treatment outcomes were compared. RESULTS Eighty-nine out of the 900 patients who underwent HRM were diagnosed as achalasia cardia. Fifty-one patients with a minimum follow-up period of 6 months were included. Types I and II achalasia were diagnosed in 24 patients each and 3 patients were diagnosed as type III achalasia. Dysphagia and regurgitation were the main presenting symptoms in patients with types I and II achalasia. Patients with type III achalasia had high basal lower esophageal sphincter pressure and maximal esophageal pressurization when compared to types I and II. Most patients underwent pneumatic dilatation (type I, 22/24; type II, 20/24; type III, 3/3). Patients with type II had the best response to pneumatic dilatation (18/20, 90.0%) compared to types I (14/22, 63.3%) and III (1/3, 33.3%). CONCLUSIONS The type II achalasia cardia showed the best response to pneumatic dilatation.
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Affiliation(s)
- Nitesh Pratap
- Asian Institute of Gastroenterology, Hyderabad, India
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Abstract
Imaging of the gastrointestinal tract is very useful for research and clinical studies of patients with symptoms arising from the gastrointestinal tract and in visualising anatomy and pathology. Traditional radiological techniques played a leading role in such studies for a long time. However, advances in non-invasive modalities including ultrasound (US), computed tomography (CT), positron emission tomography (PET), magnetic resonance imaging (MRI), etc, have in the last decades revolutionised the way in which the gastrointestinal tract is studied. The resolution of imaging data is constantly being improved and 3D acquisition, tools for filtering, enhancement, segmentation and tissue classification are continually being developed. Additional co-registration techniques allow multimodal data acquisition with improved classification of tissue pathology. Furthermore, new functional imaging techniques have become available. Altogether, the future of gastrointestinal imaging looks very promising which will be of great benefit in clinical and research studies of gastrointestinal diseases. The purpose of this review is to highlight the capabilities of the newest techniques to explore the detailed morphology, biomechanical properties, function and pathology of the gastrointestinal tract.
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