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  1. Article ; Online: Reduced gastrointestinal-related hospitalisation costs following rescheduling of over-the-counter codeine-containing compound analgesics in Australia: results of a single hospital audit in South Australia.

    Mathias, Ryan / Howes, Bejamin / Cock, Victoria / Cock, Charles

    Internal medicine journal

    2023  Volume 53, Issue 12, Page(s) 2240–2246

    Abstract: Background: Codeine-containing compound analgesics (CCCAs) are associated with dependence and, when taken in excess, significant risks of harm. A previous audit showed significant costs related to admissions for gastrointestinal (GI) complications of ... ...

    Abstract Background: Codeine-containing compound analgesics (CCCAs) are associated with dependence and, when taken in excess, significant risks of harm. A previous audit showed significant costs related to admissions for gastrointestinal (GI) complications of CCCA. Based on this and other evidence of harm, the Australian Therapeutic Goods Administration changed CCCAs to prescription only in 2018.
    Aims: We aimed to identify the costs associated with codeine-related GI complications and whether the schedule change in 2018 led to a reduced clinical and financial strain on the health care system.
    Methods: We conducted an audit of GI admissions and associated costs of CCCAs at a tertiary teaching hospital in Adelaide between 2016 and 2020. Patients were grouped by 2-year time periods before (group 1) and following (group 2) schedule change. Costs for the index presentation were multiplied for subsequent presentations. Costs and outcomes were compared for groups (standard statistics; P value < 0.05 significant.) RESULTS: Three hundred forty patients (group 1, n = 164; group 2, n = 119) were identified, with the majority of these admitted due to nonsteroidal anti-inflammatory drugs (NSAIDs) only. For CCCAs (NSAID-containing), the same patients were admitted repeatedly with a reduction from 31 to eight admissions (P = 0.005), following rescheduling. The total cost of CCCA admissions was reduced from AU$ 561 691 for group 1 to AU$ 261 764 for group 2 (P < 0.001).
    Conclusions: Australian rescheduling of CCCAs in 2018 resulted in a reduction in hospital admissions and costs related to GI complications. The cost savings, even in a single hospital department, were substantial.
    MeSH term(s) Humans ; Codeine/adverse effects ; Australia/epidemiology ; Analgesics, Opioid/adverse effects ; South Australia/epidemiology ; Analgesics ; Nonprescription Drugs/adverse effects ; Hospitalization ; Gastrointestinal Diseases ; Hospitals
    Chemical Substances Codeine (UX6OWY2V7J) ; Analgesics, Opioid ; Analgesics ; Nonprescription Drugs
    Language English
    Publishing date 2023-04-24
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2045436-3
    ISSN 1445-5994 ; 1444-0903
    ISSN (online) 1445-5994
    ISSN 1444-0903
    DOI 10.1111/imj.16080
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Rapid reversal of hyponatraemia in a patient with non-cirrhotic portal hypertension treated with terlipressin.

    Barnes, Alex / Cock, Charles

    Internal medicine journal

    2020  Volume 50, Issue 2, Page(s) 254–255

    MeSH term(s) Adult ; Anti-Infective Agents, Urinary ; Humans ; Hypertension, Portal/drug therapy ; Hypertension, Portal/etiology ; Hyponatremia/blood ; Hyponatremia/chemically induced ; Male ; Sodium/blood ; Terlipressin/adverse effects ; Thrombosis/complications ; Vasoconstrictor Agents/adverse effects
    Chemical Substances Anti-Infective Agents, Urinary ; Vasoconstrictor Agents ; Terlipressin (7Z5X49W53P) ; Sodium (9NEZ333N27)
    Language English
    Publishing date 2020-04-13
    Publishing country Australia
    Document type Case Reports ; Letter
    ZDB-ID 2045436-3
    ISSN 1445-5994 ; 1444-0903
    ISSN (online) 1445-5994
    ISSN 1444-0903
    DOI 10.1111/imj.14734
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Distension contraction plots of pharyngeal/esophageal peristalsis: next frontier in the assessment of esophageal motor function.

    Omari, Taher I / Zifan, Ali / Cock, Charles / Mittal, Ravinder K

    American journal of physiology. Gastrointestinal and liver physiology

    2022  Volume 323, Issue 3, Page(s) G145–G156

    Abstract: Esophageal peristalsis consists of initial inhibition (relaxation) followed by excitation (contraction), both of which move sequentially in the aboral direction. Initial inhibition results in receptive relaxation and bolus-induced luminal distension, ... ...

    Abstract Esophageal peristalsis consists of initial inhibition (relaxation) followed by excitation (contraction), both of which move sequentially in the aboral direction. Initial inhibition results in receptive relaxation and bolus-induced luminal distension, which allows propulsion by the contraction with minimal resistance to flow. Similar to the contraction wave, luminal distension has unique waveform characteristics in normal subjects; both are modulated by bolus volume, bolus viscosity, and posture, suggesting a possible cause-and-effect relationship between the two. Distension contraction plots in patients with dysphagia with normal bolus clearance [high-amplitude esophageal contractions (HAECs), esophagogastric junction outflow obstruction (EGJOO), and functional dysphagia (FD)] reveal two major findings:
    MeSH term(s) Deglutition Disorders ; Esophageal Motility Disorders/diagnosis ; Humans ; Manometry/methods ; Peristalsis/physiology ; Urinary Bladder Diseases
    Language English
    Publishing date 2022-07-05
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, N.I.H., Extramural
    ZDB-ID 603840-2
    ISSN 1522-1547 ; 0193-1857
    ISSN (online) 1522-1547
    ISSN 0193-1857
    DOI 10.1152/ajpgi.00124.2022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Surveillance colonoscopy findings in asymptomatic participants over 75 years of age.

    Agaciak, Madelyn / Wassie, Molla M / Simpson, Kalindra / Cock, Charles / Bampton, Peter / Fraser, Robert / Symonds, Erin L

    JGH open : an open access journal of gastroenterology and hepatology

    2024  Volume 8, Issue 5, Page(s) e13071

    Abstract: Background and aim: Surveillance colonoscopy for colorectal cancer (CRC) is generally not recommended beyond 75 years of age. The study determined incidence and predictors of advanced adenoma and CRC in older individuals undergoing surveillance ... ...

    Abstract Background and aim: Surveillance colonoscopy for colorectal cancer (CRC) is generally not recommended beyond 75 years of age. The study determined incidence and predictors of advanced adenoma and CRC in older individuals undergoing surveillance colonoscopy.
    Methods: This was a retrospective cohort study of asymptomatic older participants (≥75 years), enrolled in a South Australian CRC surveillance program who underwent colonoscopy (2015-2020). Clinical records were extracted for demographics, personal or family history of CRC, comorbidities, polypharmacy, and colonoscopy findings. The associations between clinical variables and advanced adenoma or CRC at surveillance were assessed with multivariable Poisson regression analysis.
    Results: Totally 698 surveillance colonoscopies were analyzed from 574 participants aged 75-91 years (55.6% male). The incidence of CRC was 1.6% (11/698), while 37.9% (260/698) of procedures had advanced adenoma detected. Previous CRC (incidence rate ratio [IRR] 5.9, 95% CI 1.5-22.5), age ≥85 years (IRR 5.8, 95% CI 1.6-20.1) and active smoking (IRR 4.9, 95% CI 1.0-24.4) were independently associated with CRC diagnosis, while advanced adenoma at immediately preceding colonoscopy (IRR 1.6, 95% CI 1.3-2.0) and polypharmacy (IRR 1.2, 95% CI 1.0-1.5) were associated with advanced adenoma at surveillance colonoscopy in asymptomatic older participants (≥75 years).
    Conclusion: Advanced neoplasia was found in more than one third of the surveillance procedures completed in this cohort. Continuation of surveillance beyond age 75 yeasrs may be considered in participants who have previous CRC or are active smokers (provided they are fit to undergo colonoscopy). In other cases, such as past advanced adenoma only, the need for ongoing surveillance should be considered alongside participant preference and health status.
    Language English
    Publishing date 2024-05-01
    Publishing country Australia
    Document type Journal Article
    ISSN 2397-9070
    ISSN (online) 2397-9070
    DOI 10.1002/jgh3.13071
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Gastric inlet patches: symptomatic or silent?

    Cock, Charles / Hamarneh, Zaki

    Current opinion in otolaryngology & head and neck surgery

    2019  Volume 27, Issue 6, Page(s) 453–462

    Abstract: Purpose of review: The purpose of this review is to assess recent literature on the clinical relevance of the gastric inlet patch with particular focus on endoscopic diagnosis and treatment, the relationship of the inlet patch to laryngopharyngeal ... ...

    Abstract Purpose of review: The purpose of this review is to assess recent literature on the clinical relevance of the gastric inlet patch with particular focus on endoscopic diagnosis and treatment, the relationship of the inlet patch to laryngopharyngeal reflux disease and the association of proximal esophageal adenocarcinoma with inlet patch.
    Recent findings: Recent studies suggest endoscopic diagnosis of inlet patch increases with endoscopist awareness (up to 10-fold) and when using enhanced imaging techniques such as narrow band imaging (up to three-fold). The literature remains mixed on the association of inlet patch with laryngopharyngeal symptoms or globus sensation. Studies of endoscopic ablation, using argon plasma coagulation or radiofrequency ablation have shown improved laryngopharyngeal reflux symptom scores posttreatment. Proximal esophageal adenocarcinomas are rare but often associated with inlet patch when they occur. Case studies have described endoscopic resection of malignant lesions related to inlet patch, using endoscopic mucosal resection or submucosal dissection.
    Summary: Prospective, multicenter studies of symptom association with inlet patch using validated symptom questionnaires and blinded sham-controlled treatments are needed to further clarify the role of such treatments, which to date are limited to a small numbers of centers with a special interest.
    MeSH term(s) Adenocarcinoma/etiology ; Esophageal Neoplasms/etiology ; Gastric Mucosa/pathology ; Gastroesophageal Reflux/etiology ; Humans
    Language English
    Publishing date 2019-09-30
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1232518-1
    ISSN 1531-6998 ; 1068-9508
    ISSN (online) 1531-6998
    ISSN 1068-9508
    DOI 10.1097/MOO.0000000000000581
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Development and validation of an electronic version of Sydney Swallow Questionnaire.

    Huang, Dazhong / Schar, Mistyka / Wu, Peter I / Maclean, Julia / Pandey, Dheeraj / Cock, Charles / Omari, Taher / Szczesniak, Michal M

    Neurogastroenterology and motility

    2024  Volume 36, Issue 5, Page(s) e14766

    Abstract: Background and aims: Accurate assessment of patient-reported oropharyngeal dysphagia (OPD) is essential to guide appropriate management and evaluate response. The Sydney Swallow Questionnaire (SSQ) is a paper-based 17-item inventory developed and ... ...

    Abstract Background and aims: Accurate assessment of patient-reported oropharyngeal dysphagia (OPD) is essential to guide appropriate management and evaluate response. The Sydney Swallow Questionnaire (SSQ) is a paper-based 17-item inventory developed and validated to objectively detect risk of OPD. An easy-to-use electronic version with digital output has significant potential in streamlining patient assessment. This study aims to develop and validate an electronic version of the SSQ (eSSQ) against the original paper version.
    Method: The English-based paper SSQ was adapted on the online REDcap (Research Electronic Data Capture) platform to be accessible on computer and mobile devices. Patients with OPD and asymptomatic controls completed both electronic and paper versions in randomized order. Patients with stable symptoms then repeated the eSSQ after ≥14 days for test-retest reliability. Paper-based and eSSQs were also collected from an independent cohort for external validation. Agreement of total scores between both versions and eSSQ test-retest reliability were calculated using two-way mixed-effects intra-class correlation coefficient (ICC).
    Results: 47 dysphagic patients, 32 controls, and 31 patients from an external validation cohort were recruited. The most common underlying etiology was head and neck cancer. Mean eSSQ total score was 789 in dysphagic patients, and 68 in controls. eSSQ had excellent agreement with paper SSQ in total scores among all participants, with ICC 0.97 (95% CI [0.93, 0.98]) in controls, 0.97 (95% CI [0.94, 0.98]) in dysphagic patients and 0.96 (95% CI [0.92, 0.98]) in validation cohort. Test-retest reliability was also excellent (ICC 0.96, 95% CI [0.90, 0.98]).
    Conclusion: The newly developed eSSQ shows excellent agreement with the paper version and test-retest reliability. Future applications of its use may allow for more efficient and accessible patient assessment.
    MeSH term(s) Humans ; Deglutition Disorders/diagnosis ; Female ; Male ; Middle Aged ; Surveys and Questionnaires/standards ; Aged ; Reproducibility of Results ; Adult ; Deglutition/physiology
    Language English
    Publishing date 2024-02-23
    Publishing country England
    Document type Journal Article ; Validation Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 1186328-6
    ISSN 1365-2982 ; 1350-1925
    ISSN (online) 1365-2982
    ISSN 1350-1925
    DOI 10.1111/nmo.14766
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The herbal preparation, STW5-II, reduces proximal gastric tone and stimulates antral pressures in healthy humans.

    Fitzgerald, Penelope C E / Bitarafan, Vida / Omari, Taher / Cock, Charles / Jones, Karen L / Horowitz, Michael / Feinle-Bisset, Christine

    Neurogastroenterology and motility

    2024  , Page(s) e14755

    Abstract: Background: The herbal preparation, STW5-II, improves upper gastrointestinal symptoms, including abdominal fullness, early satiation, and epigastric pain, in patients with functional dyspepsia, and in preclinical models decreases fundic tone and ... ...

    Abstract Background: The herbal preparation, STW5-II, improves upper gastrointestinal symptoms, including abdominal fullness, early satiation, and epigastric pain, in patients with functional dyspepsia, and in preclinical models decreases fundic tone and increases antral contractility. The effects of STW5-II on esophago-gastric junction pressure, proximal gastric tone and antropyloroduodenal pressures, disturbances of which may contribute to symptoms associated with disorders of gut-brain interaction, including functional dyspepsia, in humans, have, hitherto, not been evaluated.
    Methods: STW5-II or placebo (matched for color, aroma, and alcohol content) were each administered orally, at the recommended dose (20 drops), to healthy male and female volunteers (age: 27 ± 1 years) in a double-blind, randomized fashion, on two separate occasions, separated by 3-7 days, to evaluate effects on (i) esophago-gastric junction pressures following a standardized meal using solid-state high-resolution manometry (part 1, n = 16), (ii) proximal gastric volume using a barostat (part 2, n = 16), and (iii) antropyloroduodenal pressures assessed by high-resolution manometry (part 3, n = 18), for 120 min (part 1) or 180 min (parts 2, 3).
    Key results: STW5-II increased maximum intrabag volume (ml; STW5-II: 340 ± 38, placebo: 251 ± 30; p = 0.007) and intrabag volume between t = 120 and 180 min (p = 0.011), and the motility index of antral pressure waves between t = 60 and 120 min (p = 0.032), but had no effect on esophago-gastric junction, pyloric, or duodenal pressures.
    Conclusions & inferences: STW5-II has marked region-specific effects on gastric motility in humans, which may contribute to its therapeutic efficacy in functional dyspepsia.
    Language English
    Publishing date 2024-02-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1186328-6
    ISSN 1365-2982 ; 1350-1925
    ISSN (online) 1365-2982
    ISSN 1350-1925
    DOI 10.1111/nmo.14755
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  8. Article ; Online: Assessment of laparoscopic fundoplication with endoscopy: room for improvement.

    Fantasia, Joseph J / Cock, Charles / Watson, David I / Bright, Tim / Thompson, Sarah K

    Surgical endoscopy

    2023  Volume 38, Issue 2, Page(s) 713–719

    Abstract: Introduction: Gastroesophageal reflux disease affects a significant portion of the Australian and world population. Minimally invasive laparoscopic fundoplication is a highly effective treatment in appropriately selected patients, with a 90% ... ...

    Abstract Introduction: Gastroesophageal reflux disease affects a significant portion of the Australian and world population. Minimally invasive laparoscopic fundoplication is a highly effective treatment in appropriately selected patients, with a 90% satisfaction rate. However, up to 5% will undergo revisional surgery. Endoscopy is an important investigation in the evaluation of persistent or new symptoms after fundoplication. Our study sought to evaluate the inter-rater reliability and variability in assessing fundoplication with endoscopy.
    Methods: Upper gastrointestinal (UGI) surgeons and gastroenterologists were invited to join the cohort study through their professional membership with two societies based in Australia. Participants completed a two part 25-item multiple choice questionnaire, involving the analysis of ten static endoscopic images post-fundoplication.
    Results: A total of 101 participants were included in the study (64 UGI surgeons and 37 gastroenterologists). Over 95% of participants were consultant level, working in non-rural tertiary hospitals. Total accuracy for all 10 cases combined was 76% for UGI surgeons and 69.9% for gastroenterologists. In three of the 10 cases, UGI surgeons performed significantly better than gastroenterologists (p < 0.05). When assessing performance across each of the 4 questions for each case, UGI surgeons were more accurate than gastroenterologists in describing the integrity of the wrap (p = 0.014). Inter-rater reliability was low across both groups for most domains (kappa < 1).
    Conclusion: Our study confirms low inter-rater reliability between endoscopists and large variations in reporting. UGI surgeons performed better than gastroenterologists in certain cases, usually when describing the integrity of the fundoplication. Our study provides further support for the use of a standardized reporting system in post-fundoplication patients.
    MeSH term(s) Humans ; Fundoplication/methods ; Cohort Studies ; Reproducibility of Results ; Laparoscopy/methods ; Australia ; Treatment Outcome
    Language English
    Publishing date 2023-11-30
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 639039-0
    ISSN 1432-2218 ; 0930-2794
    ISSN (online) 1432-2218
    ISSN 0930-2794
    DOI 10.1007/s00464-023-10570-4
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  9. Article ; Online: The Diagnostic Performance of Fecal Immunochemical Tests for Detecting Advanced Neoplasia at Surveillance Colonoscopy.

    Berwald, Grace / Young, Graeme P / Cock, Charles / Bampton, Peter / Fraser, Robert / Symonds, Erin L

    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

    2023  Volume 22, Issue 4, Page(s) 878–885.e2

    Abstract: Background & aims: An increasing burden on health care resources has resulted in a backlog of individuals requiring colonoscopy, with delays in surveillance possibly detrimental for individuals at increased risk of colorectal cancer (CRC). This study ... ...

    Abstract Background & aims: An increasing burden on health care resources has resulted in a backlog of individuals requiring colonoscopy, with delays in surveillance possibly detrimental for individuals at increased risk of colorectal cancer (CRC). This study investigated the use of a 2-sample fecal immunochemical test (FIT) to establish those most likely to have advanced neoplasia (AN) and in need of prioritized surveillance colonoscopy.
    Methods: This was a prospective study conducted in the tertiary care setting. Participants completed a 2-sample FIT (OC-Sensor, Eiken Chemical Company) within 90 days of surveillance colonoscopy. The sensitivity of FIT for detection of AN (CRC or advanced adenoma) in moderate- and high-risk individuals was determined at fecal hemoglobin thresholds between 2 and 80 μg/g feces.
    Results: A total of 766 patients were included (median age, 66.1 years [interquartile range, 58.1-72.9]; 49.9% male), with AN detected in 8.6% (66/766, including 5 CRC). For moderate-risk individuals (with prior history of adenoma or a significant family history of CRC), sensitivity of FIT for AN ranged from 73.5% at 2 μg/g feces, to 10.2% at 80 μg/g feces. For high-risk conditions (confirmed/suspected genetic syndromes or prior CRC), sensitivity of FIT was similar, ranging from 70.6% at the lowest positivity threshold of 2 μg/g feces, to 11.8% at 80 μg/g feces. Independent variables in the whole cohort for association with detection of AN at surveillance colonoscopy were age (odds ratio, 1.03; 95% confidence interval, 1.00-1.06) and FIT hemoglobin result ≥10 μg/g feces (odds ratio, 1.81; 95% confidence interval, 1.04-3.16).
    Conclusions: The use of FIT before surveillance colonoscopy provides clinicians with insights into the risk of AN. This raises the possibility of a method to triage individuals, facilitating the more efficient management of endoscopic resources.
    MeSH term(s) Humans ; Male ; Aged ; Female ; Prospective Studies ; Colorectal Neoplasms/diagnosis ; Early Detection of Cancer/methods ; Colonoscopy ; Occult Blood ; Feces/chemistry ; Hemoglobins/analysis ; Adenoma/diagnosis
    Chemical Substances Hemoglobins
    Language English
    Publishing date 2023-09-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2119789-1
    ISSN 1542-7714 ; 1542-3565
    ISSN (online) 1542-7714
    ISSN 1542-3565
    DOI 10.1016/j.cgh.2023.09.016
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  10. Article ; Online: Reply.

    Wassie, Molla M / Young, Graeme P / Winter, Jean M / Cock, Charles / Symonds, Erin L

    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

    2023  Volume 22, Issue 5, Page(s) 1147–1148

    Language English
    Publishing date 2023-11-17
    Publishing country United States
    Document type Letter
    ZDB-ID 2119789-1
    ISSN 1542-7714 ; 1542-3565
    ISSN (online) 1542-7714
    ISSN 1542-3565
    DOI 10.1016/j.cgh.2023.11.007
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