Gastroenterology

Gastroenterology

Gastroenterology

This section provides CPD for gastroenterology specialists, gastroenterology specialist nurses, hospital doctors and nurses as well as physician’s associates, to update their knowledge in a range of topics, including but not limited to paediatric conditions like colic and reflux, IBS, fatty liver disease, Crohn’s disease, ulcerative colitis, gastrointestinal bleeding and coeliac disease. In addition to diseases, there are reflections on latest research and information about the impact of the microbiome.

Dr Juliette Loehry
Clinical adviser in gastroenterology

Bloating

Module description

1.5 CPD hours

In this module, Dr Mohsin Butt and Professor Qasim Aziz discuss the various differential diagnoses of bloating, its causes and how to manage this condition in clinical practice.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Know about the epidemiology of bloating
Discuss the differential diagnoses that should be considered when a patient experiences bloating
Become aware of the dietary factors that may contribute to this symptom
Review the considerations for the different diagnostic tests that can be used

Epidemiology

Bloating broadly refers to the feeling of fullness in the abdomen, which in some instances can result in visible abdominal distension. Patients may describe belching and/or flatus, which reflect the release of gas from the upper and lower gastrointestinal tracts, respectively, but neither of these complaints is necessarily related to bloating.

Epidemiological surveys reveal that approximately one in five people in the general population experiences bloating.1,2 This is more common in women compared to men.3 There are no robust data to suggest that bloating is associated with age.2,4

Bloating is thought to be multifactorial and may be related to food intolerances, infection, changes in the intestinal microbiota, disordered visceral perception or abnormal intestinal transit.5 The following pages discuss the common causes of bloating.

Epidemiological surveys suggest that one in five people in the general population experiences bloating

(Image credit: Vitapix/Getty Images)

References
1. Tuteja AK, Talley NJ, Joos SK et al. Abdominal bloating in employed adults: prevalence, risk factors, and association with other bowel disorders. Am J Gastroenterol 2008; 103(5):1241–8.
2. Jiang X, Locke GR, Choung RS et al. Prevalence and risk factors for abdominal bloating and visible distention: a population-based study. Gut 2008; 57(6): 756–63.
3. Sandler RS, Stewart WF, Liberman JN, Ricci JA, Zorich NL. Abdominal pain, bloating, and diarrhea in the United States: prevalence and impact. Dig Dis Sci. 2000;45(6):1166–71.
4. Drossman DA, Li Z, Andruzzi E, Temple RD et al. U.S. householder survey of functional gastrointestinal disorders. Prevalence, sociodemography, and health impact. Dig Dis Sci 1993; 38(9): 1569–80.
5. Lacy BE, Cangemi D, Vazquez-Roque M. Management of chronic abdominal distension and bloating. Clin Gastroenterol Hepatol. 2021; 19(2): 219–31.



Bloating

In this module, Dr Mohsin Butt and Professor Qasim Aziz discuss the various differential diagnoses of bloating, its causes and how to manage this condition in clinical practice.


Bloating

In this module, Dr Mohsin Butt and Professor Qasim Aziz discuss the various differential diagnoses of bloating, its causes and how to manage this condition in clinical practice.

Key considerations in acute upper gastrointestinal bleeding

Module description

1 CPD hour

In this module, consultant gastroenterologist Dr Juliette Loehry discusses in detail the causes and essential management of acute upper gastrointestinal bleeding (AUGIB). This is one of the most common gastroenterological emergencies encountered in accident and emergency or acute surgical/medical units and also occurs, less commonly, among patients already in hospital.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Appreciate the importance of stratifying patients according to their risk of developing AUGIB
Review the important considerations in the management of people with AUGIB
Understand the various applications of endoscopy for AUGIB
Ensure timely discharge and appropriate management/follow-up

Introduction

The information below, adapted from guidelines for non-variceal upper gastrointestinal haemorrhage, reports on underlying diagnoses in presentations of upper GI bleeding. An underlying cause is identified in about 80% of cases of upper gastrointestinal bleeding.3

Scroll within the image to learn more about the proportions of AUGIB cases attributable to different causes

Peptic ulcer

Percentage of patients
35–50%

Gastroduodenal erosions

Percentage of patients
8–15%

Oesophagitis

Percentage of patients
5–15%

Varices

Percentage of patients
5–10%

Mallory-Weiss tear

Percentage of patients
15%

Upper gastrointestinal malignancy

Percentage of patients
1%

Vascular malformations

Percentage of patients
5%

Rare

Percentage of patients
5%

Peptic ulcer

Percentage of patients
35–50%

Gastroduodenal erosions

Percentage of patients
8–15%

Oesophagitis

Percentage of patients
5–15%

Varices

Percentage of patients
5–10%

Mallory-Weiss tear

Percentage of patients
15%

Upper gastrointestinal malignancy

Percentage of patients
1%

Vascular malformations

Percentage of patients
5%

Rare

Percentage of patients
5%

References
8. Mishra SC, Chhatbar KC , Kashikar A, Mehndiratta A. Diabetic foot. BMJ 2017; 359: j5064.



Key considerations in acute upper gastrointestinal bleeding

Consultant gastroenterologist Dr Juliette Loehry discusses in detail the causes and essential management of acute upper gastrointestinal bleeding.


Key considerations in acute upper gastrointestinal bleeding

Consultant gastroenterologist Dr Juliette Loehry discusses in detail the causes and essential management of acute upper gastrointestinal bleeding.

Management of aggressive IBD

Module description

1 CPD hour

In this learning module, Dr Konstantina Rosiou discusses the more severe cases of IBD encountered in clinical practice. Key topics covered in this module include the predictors of aggressive disease, biological therapy and surgical management, and horizons in the treatment of IBD.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Identify the factors that will predict a more aggressive disease course
Be aware of the factors to be considered before initiating advanced therapy
Appreciate the ongoing research in the area of newer therapeutic approaches for IBD
Know when to opt for surgical management of the condition

Introduction

Inflammatory bowel diseases (IBD), namely, ulcerative colitis (UC) and Crohn’s disease (CD), are chronic bowel conditions that follow a relapsing and remitting course.

Fortunately, over the past years, the armamentarium of therapeutic agents for the treatment of IBD has expanded, and newer agents are continuously emerging. This article will focus on the management options for severe IBD, including newer and emerging therapies.

Scroll within the image to learn more about the disease course and risk for hospitalisation and colectomy in patients with IBD.

Population-based cohort studies have demonstrated that the majority of patients with UC have mild to moderate disease; however, 15% of patients with UC will be faced with a more severe disease course.1

20% of patients with UC will require hospitalisation for severe disease at some stage of their illness.2

In patients with UC, there remains a 10–15% 10-year cumulative risk for colectomy.

20% of patients with CD might need hospitalisation each year with the risk of surgery reaching 47% by ten years from diagnosis.3

Hospitalised patients with acute severe UC (ASUC) have 25–30% short-term colectomy rates.2

Population-based cohort studies have demonstrated that the majority of patients with UC have mild to moderate disease; however, 15% of patients with UC will be faced with a more severe disease course.1

20% of patients with UC will require hospitalisation for severe disease at some stage of their illness.2

In patients with UC, there remains a 10–15% 10-year cumulative risk for colectomy.

20% of patients with CD might need hospitalisation each year with the risk of surgery reaching 47% by ten years from diagnosis.3

Hospitalised patients with acute severe UC (ASUC) have 25–30% short-term colectomy rates.2

References
1. Fumery M, Singh S, Dulai PS et al. Natural history of adult ulcerative colitis in population-based cohorts: a systematic review. Clin Gastroenterol Hepatol. 2018; 16(3): 343–356.e3.
2. Narula N, Marshall JK, Colombel JF et al. Systematic review and meta-analysis: infliximab or cyclosporine as rescue therapy in patients with severe ulcerative colitis refractory to steroids. Am J Gastroenterol. 2016; 111(4): 477–91.
3. Frolkis AD, Dykeman J, Negrón ME, et al. Risk of surgery for inflammatory bowel diseases has decreased over time: a systematic review and meta-analysis of population-based studies. Gastroenterology 2013; 145(5): 996–1006.

Predictors of severe disease

The Truelove Witts criteria or the Mayo Clinic score are used to stratify severe UC.

The Harvey-Bradshaw Index can be used to classify disease activity in CD, whereas the Crohn’s Disease Activity Index is used mainly in trials, with scores ranging from 220–450 demonstrating moderate to severe disease.4

Scroll within the image below to see the factors that serve as predictors of aggressive disease course for CD and UC.

Ulcerative colitis

Extensive disease
Young age at diagnosis (<40years)
Severe endoscopic activity (large and/or deep ulcers)
Extra-intestinal manifestations
Elevated inflammatory markers
Early need for corticosteroids5

Crohn’s disease

Large or deep mucosal lesions
Fistulating disease
Extensive disease (ileal involvement >40cm or pancolitis)
Prior intestinal resections (especially segments>40cm)
Presence of a stoma
Stricturing disease
Anaemia
Elevated C-reactive protein (CRP)
Low albumin

References
4. Feuerstein JD, Ho EY, Shmidt E et al. AGA clinical practice guidelines on the medical management of moderate to severe luminal and perianal fistulizing Crohn's disease. Gastroenterology 2021; 160(7): 2496–508.
5. Dassopoulos T, Cohen RD, Scherl EJ et al. Ulcerative colitis care pathway. Gastroenterology 2015; 149(1): 238–45.

Surgical approaches

Ulcerative colitis
It is an undeniable fact that medical management of IBD has made significant progress over the last several years. Nevertheless, surgery remains an important approach for the treatment of patients living with IBD.

In the emergency setting of ASUC, surgery is indicated when there is life-threatening haemorrhage, toxic megacolon, or perforation, and when the disease is medically resistant, or there are intolerable side effects of medication.10 The operation of choice is subtotal colectomy with end ileostomy and a rectal stump. Surgical resection of the colon and rectum should also be offered to UC patients who have chronic active symptoms despite optimal medical therapy, and consideration of surgery should be given in patients with dysplastic lesions that cannot be resected completely due to extent or multiplicity.

A recent study has demonstrated that the rate of surgery for UC has decreased from 7.7 to 7.5%.11 However, the mortality of UC patients has increased to 15%,12 highlighting the need for improvement in surgical and perioperative management.

Crohn's disease
For patients with localised ileocaecal CD, laparoscopic resection can be considered for those failing or relapsing after initial medical therapy, or in those patients preferring surgery to continuation of drug therapy.10 Surgery is often considered in patients with stricturing or penetrating CD.

A recent study has demonstrated that the rate of surgery for CD has decreased from 10 to 8.8%.11 With the increasing use of biologics, the mortality rate of CD patients after non-selective surgery has declined.

Surgery remains an important treatment approach for patients with IBD

(Image credit: Lorenzo Capunata/Moment/Getty Images)

References
10. Kennedy NA, Jones GR, Lamb CA et al. British Society of Gastroenterology guidance for management of inflammatory bowel disease during the COVID-19 pandemic. Gut 2020; 69(6): 984–90.
11. Lowe SC, Sauk JS, Limketkai BN, Kwaan MR. Declining rates of surgery for inflammatory bowel disease in the era of biologic therapy. J Gastrointest Surg 2021; 25(1): 211–9.
12. Justiniano CF, Aquina CT, Becerra AZ et al. Postoperative mortality after nonelective surgery for inflammatory bowel disease patients in the era of biologics. Ann Surg 2019; 269(4) :686–91.



Management of aggressive IBD

In this learning module, Dr Konstantina Rosiou discusses the more severe cases of IBD encountered in clinical practice. Key topics covered in this module include the predictors of aggressive disease, biological therapy and surgical management, and horizons in the treatment of IBD.


Management of aggressive IBD

In this learning module, Dr Konstantina Rosiou discusses the more severe cases of IBD encountered in clinical practice. Key topics covered in this module include the predictors of aggressive disease, biological therapy and surgical management, and horizons in the treatment of IBD.

Guideline update: global guidelines for Helicobacter pylori

0.5 CPD hours

This learning module, intended for GPs, advanced nurse practitioners (ANPs) and gastroenterologists, presents recommendations for practice from the World Gastroenterology Organisation’s guidelines for Helicobacter pylori.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Identify the patient population that will benefit from H. pylori testing
Understand when H. pylori eradication can be considered as a treatment option
Translate these treatment principles into therapeutic choices/risks and benefits

Gastroenterology research briefing: COVID-19 and the gut

0.5 CPD hours

In the last research briefing of 2022, consultant gastroenterologist Dr Juliette Loehry revisits important COVID-19 studies with a new perspective on their long-term consequences on health and clinical practice.

Topics covered in this research briefing

Did COVID change the way healthcare services work?
What were the effects of COVID on patients with IBD?
Did COVID bring any positive changes for people with coeliac disease?
Does the microbiome play a role in COVID outcomes?

Mild to moderate IBD

1 CPD hour

In this learning module, Dr Konstantina Rosiou discusses the clinical presentation of mild to moderate inflammatory bowel disease (IBD), and diagnosis and management of the disease at the initial stage.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Understand the symptoms of mild to moderate IBD
Review the initial presentations of Crohn’s disease (CD) and ulcerative colitis (UC)
Read about the current diagnostic tests for UC and CD
Learn how to identify UC and CD based on their histopathological features
Prescribe appropriately for the management of these conditions

Extra-intestinal manifestations in IBD

1 CPD hour

This report from the European Crohn’s and Colitis Organization’s 2023 symposium (ECCO’23) covers a talk by Dr Hannah Gordon and Professor Torsten Kucharzik on the extra-intestinal manifestations of inflammatory bowel disease (IBD).

Educational objectives
After taking this activity healthcare professionals should be better able to:

Learn about the range of EIMs of IBD
Review in-depth information about manifestations in the joints, liver, skin and other, broader manifestations
Diagnose and prescribe effectively for EIMs
Review latest research on the subject of NSAIDs and their association with disease flares in Crohn’s disease and ulcerative colitis

Guideline update: global guidelines for Helicobacter pylori

0.5 CPD hours

This learning module, intended for GPs, advanced nurse practitioners (ANPs) and gastroenterologists, presents recommendations for practice from the World Gastroenterology Organisation’s guidelines for Helicobacter pylori.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Identify the patient population that will benefit from H. pylori testing
Understand when H. pylori eradication can be considered as a treatment option
Translate these treatment principles into therapeutic choices/risks and benefits

Gastroenterology research briefing: COVID-19 and the gut

0.5 CPD hours

In the last research briefing of 2022, consultant gastroenterologist Dr Juliette Loehry revisits important COVID-19 studies with a new perspective on their long-term consequences on health and clinical practice.

Topics covered in this research briefing

Did COVID change the way healthcare services work?
What were the effects of COVID on patients with IBD?
Did COVID bring any positive changes for people with coeliac disease?
Does the microbiome play a role in COVID outcomes?

Mild to moderate IBD

1 CPD hour

In this learning module, Dr Konstantina Rosiou discusses the clinical presentation of mild to moderate inflammatory bowel disease (IBD), and diagnosis and management of the disease at the initial stage.

Educational objectives
After taking this activity healthcare professionals should be better able to:

Understand the symptoms of mild to moderate IBD
Review the initial presentations of Crohn’s disease (CD) and ulcerative colitis (UC)
Read about the current diagnostic tests for UC and CD
Learn how to identify UC and CD based on their histopathological features
Prescribe appropriately for the management of these conditions

Extra-intestinal manifestations in IBD

1 CPD hour

This report from the European Crohn’s and Colitis Organization’s 2023 symposium (ECCO’23) covers a talk by Dr Hannah Gordon and Professor Torsten Kucharzik on the extra-intestinal manifestations of inflammatory bowel disease (IBD).

Educational objectives
After taking this activity healthcare professionals should be better able to:

Learn about the range of EIMs of IBD
Review in-depth information about manifestations in the joints, liver, skin and other, broader manifestations
Diagnose and prescribe effectively for EIMs
Review latest research on the subject of NSAIDs and their association with disease flares in Crohn’s disease and ulcerative colitis