Dr. Gilbert Ayoub

   NMC Royal Hospital, Khalifa City , Abu Dhabi, United Arab Emirates

  18 Years of experience


Qualification and Experience

Dr Gilbert Ayoub is the chairman and HOD of the general surgery at the NMC Royal Hospital, Abu Dhabi, United Arab Emirates. He has over 20 years of experience in his field and even performs cancer surgeries. After obtaining his medical degree from Russia he went on to pursue his medical Education and Master Degree in General/Visceral Surgery at St. Marie Hospital in Siegen (academic teaching Hospital of the University of Marburg in Germany). He specialises in umbilical, ventral, inguinal and incisional hernia repair, appendectomy, Cholecystectomy and Colon Resections, as well as noncardiac thoracic VATS Surgeries (Thoracoscopy, partial Lunge Lobectomy and Resection).

Contribution to Medical Science

Dr Gilbert Ayoub is a part of many prestigious societies such as the Arab Medical Union in Europe, German Society of Surgery, German Society of Visceral Surgery. He is fluent in Arabic, German, English, French and Russian. He is also well versed in surgeries such as Laparoscopic Colon resection (Right and left Hemi-colectomy, Sigmoid, / and rectum resection),  Haemorrhoids and Anal Prolapse Surgeries ( Ultrasound guided Ligation and Repair), Reconstructive surgery for fistula and anal Fissure, Trans-anal Tumour excision, ultrasound-guided interventions, as in vascular Diseases and Operations such as Varicose Vein Surgery. He is a well-known endocrine and surgical oncologist and has performed over 600 thyroid surgeries every year.

Condition Treated by Dr. Gilbert Ayoub

The conditions that Dr. Gilbert Ayoub treats are listed below:

  • Colorectal or Colon Cancer
  • Inguinal Hernia (in Groin)
  • Prostate Cancer
  • Stomach Cancer
  • Meningiomas
  • Breast Cancer
  • Cervical Cancer
  • Chronic Pancreatitis
  • Mixed Gliomas
  • Ovarian Cancer
  • Pancreatic or Duodenal Trauma
  • Lung Cancer
  • Primitive Neuroectodermal Tumors
  • Ependymomas
  • Complicated Acute Appendicitis
  • Cholecystitis (Inflammation of the Gall Bladder)
  • Oligodendrogliomas
  • Brain Cancers- Astrocytoma
  • Gallstones that are Causing Pain and Infection
  • Pancreatic Cancer
  • Oral or Mouth Cancer
  • Pancreatic Head Cancer
  • Skin Cancer

The goal of breast cancer surgery is to excise the tumor and a portion of the surrounding tissues while conserving the breast. Breast cancer surgery methods may vary in the amount of breast tissue which is removed with the tumor. This depends on the overall tumor location, how far it has spread, as well as ones personal feelings. The surgeons also remove some lymph nodes under this arm so that these can be removed. This helps your doctor to plan your treatment.

Signs and Symptoms treated by Dr. Gilbert Ayoub

There are around 200 different types of cancer and all these can cause different symptoms. The symptoms are often linked to some cancer types. The signs could also be general, including weight loss, fatigue, and unexplained pain. Although there may be different symptoms in different types of cancer, some general symptoms of cancer include:

  • Bone pain
  • Headache
  • Hoarseness
  • A new cough that doesn't go away
  • Shortness of breath
  • Losing weight without trying
  • Coughing up blood, even a small amount
  • Chest pain

Operating hours of Dr. Gilbert Ayoub

Dr Gilbert Ayoub is available for consultation from 11 am to 6 pm (Monday to Saturday). The doctors clinic is closed on Sunday.

Procedures performed by Dr. Gilbert Ayoub

Dr Gilbert Ayoub performs a wide variety of procedures for cancer treatment. Some of these are

  • Lung Cancer Treatment
  • Colorectal Cancer ( Colon Cancer ) Treatment
  • Laparoscopic Gall Bladder Removal
  • Inguinal Hernia Repair
  • Appendectomy
  • Whipples Procedure

The doctor has rich experience in performing complex cases with accuracy. The surgeon has performed a large number of procedures with a high success rate and adheres to medical protocols to ensure patient safety and speedy recovery. The specialist is proficient in using the latest techniques to perform the procedures and ensures that the patient has a speedy recovery. A surgical oncologist performs cancer surgery in two ways: minimally invasive surgery and open surgery. Minimally invasive surgery uses techniques that focus on minimizing the trauma of traditional surgery. Some of the minimally invasive techniques are cryosurgery, robotic surgery, laparoscopy, cryosurgery, and laser surgery. In open surgery, surgeons make a single large cut to remove the tumor and some healthy tissues.

Past Experience

  • Consultant Surgeon/Deputy HOD General, Vascular and Thoracic Surgery Department - St. Marie Hospital Siegen/Germany


  • MBBS - Medical University in Russia (KGMU)
  • Master Degree in General/Visceral Surgery at St. Marie Hospital in Siegen (academic teaching Hospital of the University of Marburg in Germany).
  • Member of the Arab Medical Union in Europe
  • German Society of Surgery
  • German Society of Visceral Surgery

Appendectomy is a surgical procedure in which the inflamed appendix causing abdominal pain is removed. An appendix is a pouch-like structure attached to the large intestine and is located on the lower right side of the abdomen.

An appendectomy can be done laparoscopically as well as an open procedure. Complications may arise if an appendix has burst due to inflammation, which may increase the recovery time as a drain is put in the incision for a few days after the surgery.

Colorectal Cancer ( Colon Cancer ) Treatment
  • Overconsumption of animal protein, saturated fats, and calories
  • Low dietary fibre intake
  • Overconsumption of alcohol
  • Excessive smoking
  • Family history of colorectal cancer
  • Obesity
  • Physical inactivity

Colorectal cancer is the second most common cancer in the world. It can metastasize and spread to other body parts. Colorectal cancer is dangerous and can be life-threatening. But death rate from colorectal cancer has dropped in the recent years, thanks to advance screening techniques and better colorectal treatment options.

What is colon cancer?

Colorectal cancer is also known as bowel cancer, colon cancer, or rectal cancer. Colorectal cancer begins as an abnormal growth of cells in the inner lining of the colon or rectum. This abnormal growth is called a polyp.

Some types of polyps can change into cancer over the course of several years. But it does not mean that all polyps have the tendency to become cancerous. The chance of changing a polyp into colorectal cancer depends on the type of polyp that grows. 

Colorectal cancer can affect men and women equally. However, studies have proven that men might develop it at a younger age.

What causes colon cancer?

There is no definite cause of colorectal cancer, but old age and certain lifestyle factors can increase colorectal cancer risk. Some of these colorectal cancer risk factors include the following:

Types of Colorectal Cancer

A majority of colorectal cancers are adenocarcinoma. If you have been diagnosed with colorectal cancer, there are 95 percent chances that it is an adenocarcinoma. But there are some other types of colorectal cancer such as carcinoid, gastrointestinal stromal, lymphomas, and sarcomas.

Colorectal Cancer Symptoms

There are no early signs of colorectal cancer, but once it grows, the patients may experience the following colon cancer symptoms:

  • Fatigue, weakness, and shortness of breath
  • Change in bowel habits, including diarrhoea or constipation
  • Blood in stool
  • Abdominal discomforts such as cramps, bolting or pain
  • Dramatic weight loss
Inguinal Hernia Repair

Inguinal hernia is a condition that occurs when intestinal tissues or fatty tissues push through the weaker section of the abdominal wall, through the inguinal canals. The inguinal canals are situated both sides of the anterior abdominal wall, on either side of the midline. Located just above the inguinal ligaments, the inguinal canal is larger as well as more prominent among the men compared to women. It serves an important purpose, as it is associated in the conveyance of the spermatic chords in male as well as the uterine ligament (round) in the females. When a part of the abdominal wall gets weak, the tissues in the region protrude through the abdominal wall into the canal, causing extreme pain and discomfort. This can be felt as a lump in the lower abdominal area in most people, however, may also get unnoticed in candidates dealing with obesity. In such cases, inguinal hernia repair becomes the need of the hour, which can be achieved by surgical operations.

Inguinal hernia can be very painful and may interfere with daily activities to a great extent. Though medications like painkillers may help to cope up with the pain, the best treatment to cure hernia is through surgical procedures. Inguinal hernia repair can be done via surgical methods as the opening can not be sealed with medications and therapies, and needs to be thoroughly sealed. Thus, the candidate is suggested and requested to prepare for surgery. However, pre-surgery, through evaluation of the candidate is done in order to diagnose any kind of chronic or terminal disease which shall complicates the surgery further. Inguinal hernia repair is essential as if the protruding tissues are not retracted, it will keep forcing the opening in the abdominal and worsening the condition.

Laparoscopic Gall Bladder Removal

Laparoscopic gallbladder removal is a minimally invasive surgery in which small incisions and specialized tools are used to remove a diseased or inflamed gallbladder. The gallbladder is a small organ located in the right upper abdomen below the liver. It helps in the storage of bile which is used to breakdown food during digestion. Laparoscopic gallbladder removal is a minimally invasive surgery in which small incisions and specialized tools are used to remove a diseased or inflamed gallbladder. The main reason for having a gallbladder removed is the presence of gallstones and the complications it might cause. Other reason for the surgery might include biliary dyskinesia, cholecystitis, pancreatitis. It is called as laparoscopic cholecystectomy and it carries only a small risk of complications.

Laparoscopic Hernia Repair
Lung Cancer Treatment

Lung cancer is an uncontrolled growth of cells that start off in the lungs. Usually, lung cancer starts in the cells that line the air passages. Instead of developing into healthy lung tissue, the cells divide rapidly and form tumours.

Lung cancer can grow and spread beyond the lung to reach other parts of the body through metastasis. Lung cancers can begin in any part of the lung, but 90 percent of lung cancers begin in the epithelial cells, which are the cells lining the larger and smaller airways also known as bronchi and bronchioles.

This is the reason why lung cancers are sometimes called bronchogenic cancers or bronchogenic carcinomas. Lung cancer is the most common cancer in the world, among both men and women. It is the leading cause of cancer deaths worldwide.

Lung Cancer: Causes and Risk Factors

Long-term smoking is the main cause of lung cancer. After smoking, genetic factors and exposure to radon gas, asbestos, second-hand smoke or other forms of air pollution can also increase the risk of lung cancer.

Types of Lung Cancer

There are two major types of lung cancers, based on the appearance of lung cancer cells under the microscope:

  • Non-small cell lung cancer (NSCLC): It is an umbrella term for several types of lung cancers that behave in a similar way, such as squamous cell carcinoma, adenocarcinoma, and large cell carcinoma.
  • Small cell lung cancer (SCLC): This type of lung cancer occurs mostly in heavy smokers and it is less common than non-small cell lung cancer. 

Lung Cancer Stages

It is necessary to determine the stage of lung cancer by finding out how far cancer has spread, before initiating treatment of lung cancer.
The following are the four lung cancer stages of NSCLC:

  • Stage 1 lung cancer: Cancer is restricted to the lung
  • Stage 2 lung cancer: Cancer has spread to the nearby lymph nodes
  • Stage 3 lung cancer: (3a) Cancer is in the lung and the lymph nodes located on the same side  (3b) Cancer is in the lung and has spread to lymph nodes on the opposite side
  • Stage 4 lung cancer: Cancer has spread to both the lungs and other organs and surrounding tissues

The following are the two lung cancer stages of SCLC:

  • Limited stage: Cancer is present in just one lung and lymph nodes on the same side of cancer.
  • Extensive stage: Cancer has spread throughout the lung or both the lungs, to the lymph nodes on the opposite side, to the bone marrow, and to the distant organs.

After the determination of stage, treatment of lung cancer starts with choosing the best suitable option for the patient. However, there is usually no single treatment for lung cancer. So the patient often receives a combination of therapies and palliative care. 

Lung Cancer Symptoms

Lung cancer symptoms may vary, depending upon where and how widespread the tumour is. A person with lung cancer may have following lung cancer symptoms:

  • A persistent or chronic coughing
  • Pain in chest, shoulder or back
  • Difficulty in breathing and shortness of breath
  • Hoarseness or change of voice
  • Chronic bronchitis, pneumonia or respiratory infections
  • Blood in the sputum and cough

Stage 3 lung cancer symptoms include the following:

  • Wheezing
  • General pain in the chest or when breathing
  • Persistent cough with or without blood
  • Altered voice
  • Loss of appetite
  • Unplanned weight loss
  • Fever, headache, weakness, and bone pain
  • Difficulty swallowing
Whipple's Procedure

Among all the forms of common cancers, it has been found that pancreatic cancer has the poorest prognoses. This reason can be attributed to the cancer growing and spreading long before it starts showing any visible symptoms. A survey revealed that only 6 percent patients survive for more than five years after its diagnosis. For some patients, a very complicated surgery known as the Whipple's procedure will be able to extend life and can be counted as a potential cure. After undergoing Whipple's surgery the five-year rate of survival can be increased to 25 percent.

People who are suffering from pancreatic cancer are eligible for the Whipple’s operation. People who have tumors confined to the pancreatic head and the blood vessels, lungs, and livers or the abdominal cavities are still not affected and are recommended to undergo this procedure after intensive testing and evaluation.

People with benign tumors are also recommended to undergo the procedure. For patients who are suffering metastasis, this procedure is not recommended. Cancer in the ampulla, region where the pancreatic duct and bile duct enter, can also be treated.

Whipple's Operation

Whipple's operation is conducted in the head of the pancreas. During the surgery, a segment of the duodenum, bile duct, and the gallbladder is removed. In some cases, a portion of the stomach may also be removed. After these segments are removed, the remaining pancreas, bile duct, and even portion of the intestine will be sutured back to the main intestine to direct the secretion of the gastrointestinal segment into the gut. The Whipple& procedure for pancreatic cancer is long and has several complications associated with it.

A doctor may recommend you to undergo Whipple operation for the treatment of the following conditions:

  • Pancreatic cysts, tumors, and cancer
  • Ampullary cancer
  • Pancreatitis
  • Neuroendocrine tumors
  • Cancer of the bile duct
  • Small bowel cancer
  • Traumatic injury to the small intestine or the pancreas
  • Tumor of disorders of the bile ducts, pancreas, or duodenum

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Dr. Gilbert Ayoub

Frequently Asked Questions
How many years of experience does Dr Gilbert Ayoub have being a general laparoscopic surgeon in the United Arab Emirates?

Dr Gilbert Ayoub has over 18 years of experience in his field.

What are the primary treatments and surgeries does Dr Gilbert Ayoub as a laparoscopic surgeon?

He specialises in procedures such as umbilical, ventral, inguinal and incisional hernia repair, appendectomy, Cholecystectomy and Colon Resections, as well as noncardiac thoracic VATS Surgeries (Thoracoscopy, partial Lunge Lobectomy and Resection).

Does Dr Gilbert Ayoub provide Online Consultation?

Yes, Dr Ayoub provides online consultation through MediGence.

How much does it cost to consult online with Dr Gilbert Ayoub?

It costs 160 USD for online consultation with Dr Ayoub.

What associations is Dr Gilbert Ayoub part of?

Dr Gilbert Ayoub is a part of many prestigious societies such as the Arab Medical Union in Europe, German Society of Surgery, German Society of Visceral Surgery

When do you need to see a laparoscopic surgeon such as Dr Gilbert Ayoub?

Laparoscopic surgeons are trained professionals who perform various minimally invasive surgeries such as gall bladder removal etc. Dr Gilbert Ayoub performs many cancer surgeries as well.

How to connect with Dr Gilbert Ayoub for Online Consultation through MediGence?

He can be easily consulted by registering your profile with MediGence and writing down your enquiry. A meeting with the surgeon will be scheduled. Following which the consultation can be done.

What area of specialization does Dr. Gilbert Ayoub have?
Dr. Gilbert Ayoub is specialized in United Arab Emirates and of the most sought after doctors in Cancer Specialist.
Does Dr. Gilbert Ayoub offer Telemedicine Consultation through Medigence?
No, this doctor dose not offer telemedicine via MediGence
How many years of experience does Dr. Gilbert Ayoub have?
Dr. Gilbert Ayoub is one of the most sought after specialists in United Arab Emirates and has over 18 Years years of experience.
FAQ's Related to Surgical Oncologist
What does a surgical oncologist do?

The surgical oncologist is often the first among cancer specialists to see cancer patients. The primary doctor most commonly does a diagnosis, and in cases where this requires biopsy or surgery, the surgical oncologist is called. Surgical oncologists are doctors with experience in cancer surgery. Surgical oncologists choose to perform surgeries to find out the locations where cancer has spread. While treating cancer, a surgical oncologist might remove cancerous tumors and surrounding healthy tissues, and nearby lymph nodes. The surgical procedures used will vary depending on the aim of the surgery. Surgical oncologists might do minimally invasive procedures or open surgeries.

What are the tests required before and during consultation by a surgical oncologist?

Some of the most common test performed for the diagnosis of cancer are:

  • Physical Exam
  • Cancer Screening
  • Laboratory Tests
  • Biopsy
  • Imaging Tests

Most cancer patients undergo a biopsy to remove a sample of tissues from a body part for examination by a pathologist so that cancer can be diagnosed.

When should you go to see a surgical oncologist?

You may see a surgical oncologist in case you have abnormal growth or tumor. If your primary doctor suspects cancer, they will refer you to a surgical oncologist for diagnosis. If you have been diagnosed with cancer, a doctor will refer you to surgical oncologists for your cancer treatment. An individual needs to consult a surgical oncologist in case of below situations:

  1. Unusual cancer like head or neck cancer.
  2. Complex cancer can spread to multiple body parts.
  3. Cancer recurrence
  4. Cancer that is difficult to treat
  5. For in-depth evaluation and treatment plan
  6. You want a second opinion about cancer diagnosis
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