Consult Doctors. FREE.
Real Doctors, Expert Answers
Connect with Facebook Connect with Google For Doctors
By creating an account, you are indicating that you have read and accepted the DoctorxDentist Terms of Use.
Consult Doctors. FREE.
Real Doctors, Expert Answers
By creating an account, you are indicating that you have read and accepted the DoctorxDentist Terms of Use.
Registration Progress
Step 1: Indicate Topics of Interests
Step 2: Follow Relevant Doctors
Complete!
What are your interests?
Please select at least 3 interests.
NEXT
NEXT
Registration Progress
Step 1: Indicate Topics of doctors
Step 2: Follow Relevant Doctors
Complete!
Follow your favourite doctors
We found some doctors you may like. Click continue to follow them.
CONTINUE
CONTINUE
Consult Doctors. FREE.
Real Doctors, Expert Answers
Continue with Facebook Continue with Google

or

OOPS!

SOMETHING WENT WRONG.

PLEASE TRY AGAIN.

OOPS! SOMETHING

WENT WRONG.

PLEASE TRY AGAIN.

Disclaimer: Any answers provided are for general informational purposes only and is not a substitute for professional medical advice. If you think you may have a medical emergency, call your doctor immediately. Always seek the advice of your doctor before starting or changing treatment.

Continue with Facebook Continue with Google

Disclaimer: Any answers provided are for general informational purposes only and is not a substitute for professional medical advice. If you think you may have a medical emergency, call your doctor immediately. Always seek the advice of your doctor before starting or changing treatment.

YOUR QUESTION HAS BEEN

SUCCESSFULLY SUBMITTED.

YOUR QUESTION

HAS BEEN

SUCCESSFULLY

SUBMITTED.

YOUR ANSWER HAS BEEN

SUCCESSFULLY SUBMITTED.

YOUR ANSWER

HAS BEEN

SUCCESSFULLY

SUBMITTED.

YOUR QUOTE REQUEST HAS BEEN

SUCCESSFULLY SUBMITTED.

OUR DOCTORS WILL GET BACK TO YOU SHORTLY!

YOUR QUOTE REQUEST

HAS BEEN

SUCCESSFULLY

SUBMITTED.

OUR DOCTORS WILL GET

BACK TO YOU SHORTLY!

YOUR THREAD HAS BEEN

SUCCESSFULLY CREATED.

HEAD OVER TO FORUM PAGE NOW

TO JOIN THE DISCUSSION

YOUR THREAD

HAS BEEN

SUCCESSFULLY

CREATED.

HEAD OVER TO THE FORUM PAGE NOW

TO JOIN THE DISCUSSION!

YOUR REVIEW HAS BEEN

SUCCESSFULLY SUBMITTED.

THANK YOU.

YOUR REVIEW

HAS BEEN

SUCCESSFULLY

SUBMITTED.

THANK YOU.

OOPS!

THERE IS SOMETHING

WRONG WITH YOUR EMAIL.

PLEASE TRY AGAIN.

OOPS! THERE IS

SOMETHING WRONG

WITH YOUR EMAIL.

PLEASE TRY AGAIN.

YOUR EMAIL HAS BEEN

SUCCESSFULLY SUBSCRIBED.

THANK YOU.

YOUR EMAIL

HAS BEEN

SUCCESSFULLY

SUBSCRIBED.

THANK YOU.

YOUR CONSULTATION HAS BEEN

SUCCESSFULLY SUBMITTED.

OUR DOCTORS WILL

GET BACK TO YOU SHORTLY.

YOUR CONSULTATION

HAS BEEN

SUCCESSFULLY

SUBMITTED.

OUR DOCTORS

WILL GET

TO YOU

SHORTLY.

MESSAGES TO
Gastroscopy

Gastroscopy

A DxD Session with Dr Jarrod Lee


Ended on Thu Nov 15 2018
Ended

Top Answers


Hi Yang Meng, 

gastroscopy singapore

Thanks for the D2D. During the actual procedure, I always start by spraying a local anaesthetic to numb the back of the throat. The patient then lies on the left side, and I give medication through an intravenous line to put the patient to sleep.

Once the patient is adequately sleepy, I'll pass the gastroscope through the mouth into the oesophagus, stomach, and duodenum (it's the first and shortest segment of the small intestine).

The gastroscope is a long thin flexible tube with a camera and light source at the end. The tube is about the same diameter as my little finger, and can pass through the different areas with ease.

I'll examine the various parts of the upper digestive tract and document pictures of the various landmarks according to the accepted international standard. If necessary, I will obtain tissue biopsies or performed endoscopic treatment through the gastroscope.

Most of my standard diagnostic gastroscopy is completed within 15 minutes. Throughout the procedure, I add doses of sedating or ‘sleeping’ medication as necessary to ensure that the patient is just sufficiently asleep and comfortable.

This avoids giving too much sedating medication, which in turn minimizes the side effects and complications. Over 95% of my patients will wake up within the hour after gastroscopy, and can resume normal activity.

Obviously, complex and advanced endoscopy cases take more time and are done differently. Prior to such cases, I will counsel the patient on the differences from standard gastroscopy so that they will know exactly what to expect. Hope this helps!

16 Oct 2018

Thanks for the D2D. Unlike colonoscopy, ‘routine’ gastroscopy for general screening is not proven. I typically advise 2 groups of people to go for ‘screening’ gastroscopy.

1. Patients with symptoms that may be due to disorders of the upper digestive tract, as the gastroscopy may be able to diagnose a problem to allow treatment and prevent it from getting worse.

I use gastroscopy to examine the internal lining of the oesophagus, stomach, and duodenum (it's the first and shortest segment of the small intestine), and may obtain tissue biopsies to allow further examination of cellular structures under a microscope by a pathologist.

This allows me to make an accurate diagnosis and recommend the appropriate treatment.

The top 10 symptoms that I perform gastroscopy for include: upper abdominal discomfort or pain, ‘gastric symptoms’, ‘reflux symptoms’, heartburn, chest pain, bloating, belching, nausea, and ‘indigestion’.

2. Patients with increased risk of oesophageal and gastric cancer. This includes patients with certain chronic symptoms or digestive disorders, and patients with family history.

Most general practitioners will be able to advise if a person is at increased risk. In these patients, I use gastroscopy to identify precancerous and cancerous changes. I will incorporate image enhanced endoscopy as the early changes may be difficult to see with routine gastroscopy.

Accurate detection of precancerous changes allows me to determine the patient’s cancer risk in the future, and to plan monitoring of these areas so that they may be removed before developing into cancer.

Precancerous areas and even early cancers can be removed endoscopically with good results and safety, avoiding the need for surgery.

16 Oct 2018

gastroscopy preparation singapore

Thanks for the D2D. Preparation for gastroscopy is surprisingly simple. My patients are allowed to take a light meal 6 hours or more before the procedure.

gastroscopy preparation singapore

Clear liquids such as water, fruit juice without pulp and carbonated beverages may still be taken until up to 2 hours before the gastroscopy. In certain cases, I may recommend a longer fasting period, for example, after heavy meals or in patient with slow stomach emptying.

Although the fasting preparation is very simple, it is crucial to allow clear visualization of the stomach to enable accurate diagnosis and treatment.

Patients should inform their doctor about all the medication they are taking so that they can be properly advised. I will discuss whether my patients should continue or stop their existing medication.

For example, I may recommend that certain blood thinning medication be stopped before the procedure. This will allow me to take biopsies and perform endoscopic interventions without an increased risk of bleeding.

16 Oct 2018

Thanks for the D2D. When I find an abnormality, I will do the following:

  • Make an endoscopic diagnosis. In many conditions, a good endoscopic diagnosis and picture documentation is sufficient to proceed to management.
  • Try to find an underlying cause of the condition. For example, if there is a stomach ulcer, I will look for an underlying infection which may have caused the ulcer.
  • Assess the severity of the condition and look for associated complications.
  • Determine whether tissue biopsy is needed, and obtain the appropriate samples if so. 

Even if no abnormality is found, I may still obtain tissue biopsies to look for abnormalities at the microscopic level. Some disorders have a normal endoscopic appearance, and can only be diagnosed through a biopsy.

I will assess the possibility of such conditions based on the patient’s symptoms and risk factors, and will plan the biopsies accordingly. 

If I detect something that can be treated endoscopically, I may proceed to treatment immediately. This includes abnormalities which are bleeding or have high risk of bleeding, and growths that are simple to remove.

If the endoscopic treatment is more complex, I will usually defer it to another day. This will allow me to discuss the findings with the patient, to explain endoscopic treatment and the alternatives, and to advise on the increased risk and cost of the treatment.

16 Oct 2018

Thanks for the D2D. Gastroscopy is usually performed under moderate or ‘conscious’ sedation. This is a state where patient is ‘put to sleep’ or sedated, but can be respond purposefully when called or touched. The medication is given through an intravenous line, and I adjust the dose accordingly to achieve the desired state of sedation.

This way, I ensure that just enough sedation is given, and I avoid the side effects and complications of the medication. Most of my gastroscopy procedures are completed within 15 minutes, so the total dose of medication I give is low. Hence, the sedation is safe and wears off quickly, allowing patients to return to normal activities quickly. 

With effective sedation, gastroscopy is a painless procedure. Patients are comfortable throughout the procedure, and the gag reflux is usually not elicited.

After the gastroscopy, 20-40% of patients may complain of minor symptoms such as abdominal discomfort, bloating, nausea, headache and sore throat. These usually resolve the next day.

Less than 10% of patients complain of such symptoms, and mostly after complex or advanced procedures. Over 95% of my patients are fully awake and back to normal activities within the hour.

16 Oct 2018

Gastroscopy is used to examine the organs of the upper digestive tract: the oesophagus, stomach and duodenum (it's the first and shortest segment of the small intestine).

gastroscopy singapore

I perform gastroscopy for 3 groups of patients: 

  1. Patients with symptoms that may be due to disorders of the upper digestive tract.

I use gastroscopy to examine the internal lining of the oesophagus, stomach and duodenum for disorders. I may also obtain tissue biopsies to allow further examination of cellular structures under a microscope by a pathologist. This allows me to make an accurate diagnosis and recommend the appropriate treatment.

The top 10 symptoms that I perform gastroscopy for include: upper abdominal discomfort or pain, ‘gastric symptoms’, ‘reflux symptoms’, heartburn, chest pain, bloating, belching, nausea and ‘indigestion’

  1. Patients with increased risk of oesophageal and gastric cancer.

In these patients, I use gastroscopy to identify precancerous and cancerous changes. I will incorporate image enhanced endoscopy in the gastroscopy as the early changes may be difficult to see with routine gastroscopy.

Accurate detection of precancerous changes allows me to determine the patient’s cancer risk in the future, and to plan monitoring of these areas so that they may be removed before developing into cancer. Precancerous areas and even early cancers can be removed endoscopically with good results and safety, avoiding the need for surgery.

  1. Patients who need endoscopic treatments, in order to avoid surgery.

Emergencies such as internal bleeding and swallowed foreign body can be effectively treated through gastroscopy, and this can be life-saving.

Other examples of treatment I have performed through gastroscopy include: removal of precancerous areas and early cancers, bypassing or opening up of blocked passages, and insertion of feeding tubes for nutrition.

These procedures are usually performed by advanced endoscopists, and doctors like me undergo years of additional focused and sub-specialized training in endoscopy after we have become specialists.

16 Oct 2018

Hi Yun Ling,

Thanks for the D2D. Based on the MOH website on October 2018, the median cost of a standard diagnostic gastroscopy performed as day surgery ranges from $300 to $910 for subsidized patients, depending on the hospital.

Medisave can be used to cover the cost of gastroscopy. For standard diagnostic gastroscopy performed as day surgery, up to $650 may be used. In most cases, this is sufficient to cover the entire cost if performed as a subsidized case in a public hospital.

However, the cost of gastroscopy is highly variable, depending on who and where it's performed. Here's a breakdown of the cost estimates: 

WhoWhereCost estimate
Subsidised patientsPublic hospitals$300 - $910
Private patientsPublic hospitals$700 - $1080
Private patientsPrivate hospitals $1500 - $2080


The cost is significantly higher if gastroscopy is done as an inpatient with an overnight stay.

The cost also increases if endoscopic treatments are performed. In such cases, the cost is even more variable due to the multitude of techniques and equipment that may be used. Proper financial counselling is usually possible only after discussion with the doctor.

My patients are fully counselled on the cost and whether their insurance will cover before they commit to any procedure, which is usually done at a later date to allow the patient time to think and clarify the information.

Some patients even get the financial counselling done before they even see me, so that they may see another doctor instead if the cost is more suitable for them.

16 Oct 2018

Top Questions


I'm a 19 year old female, and I almost constantly have feelings of nausea and even vomiting in the morning. I also realised it intensifies if I feel stressed or nervous. However, a few hours into the day or after having lunch, the feeling subsides. 

Hello, 21 y/o female here. I have been suffering from gastroenteritis for the past week and would like to know more about fully recovering. I still have loose yellow diarrhea, stomach churning and abdominal discomfort. How to know if you are completely "cured" from viral gastroenteritis, and how long does it typically take to recover? I am unsure if I need to seek further help and treatment. Thank you.

What kind of diet should I be having to speed up recovery after viral gastroenteritis?