Gastroenterology and Endoscopy
Gastroenterology is a branch of medicine that focuses on the examination, diagnosis, and treatment of diseases of the gastrointestinal tract.
Indications for a visit
Here are some common symptoms, which may require a consultation with a gastroenterologist physician.
- Pain or discomfort around the stomach. If you have frequent pain in the upper or lower abdomen, and if the pain is long-lasting, intense, or accompanied by other symptoms, it may indicate various gastrointestinal problems.
- Changes in appetite. Loss of appetite, or excessive hunger, and other changes in eating habits may be associated with gastrointestinal issues.
- Digestive disorders: Persistent digestive problems such as acid indigestion, constipation, or diarrhea.
- Unusual color, the presence of blood or undigested food particles, as well as the changes in texture of the stool, can be signs of dysfunction in the gastrointestinal tract.
- Sudden and unexplainable weight loss
- Non-specific symptoms, such as tiredness, fatigue, fever, and loss of energy.
When noticing similar symptoms, it is recommended to consult a gastroenterologist to get a professional evaluation, diagnosis, and, if necessary, treatment.
Gastroenterological service in Nairi MC
The service has set a goal to provide a comprehensive preventive examination of organ systems to detect diseases at early stages. Highly informative radiological methods are used: roentgenography, roentgenoscopy, computed tomography, and magnetic resonance imaging.
Nairi Medical Center provides outpatient and inpatient treatment as part of the gastroenterological service, meanwhile, there are also conditions for day-case treatment. The inpatient care process includes treatment with medications, nutritional therapy, and physiotherapy in accordance with the latest international standards. An individual scheme of treatment and nutrition is developed for each patient.

Surgery gastroenterology
Surgical treatment is carried out with the use of the most recent and minimally invasive methods, ensuring minimal damage to organs during surgery and, consequently, a rapid post-operative recovery. The service performs planned surgical interventions for patients with hernias on the anterior abdominal wall or esophageal hiatus, as well as operations on the stomach, liver, gall bladder, pancreas, liver, and rectum, and emergency surgical care is provided around the clock.

The highest levels of comfort are ensured in the post-operative wards. They are equipped with a centralized oxygen supply, monitoring systems of respiration, blood pressure, heart rate, and ECG, as well as a system for emergency nursing calls.
The specialists take trainings in prestigious clinics in Europe and America.
The service carries out open and laparoscopic-endoscopic surgeries:
- laparoscopic removal of the esophagus and its replacement with a gastric tube, in case of esophageal oncological lesions.
- during widespread tumor diseases, lymph dissection, atypical resections, and placement of gastrostomy - in order to maintain the patient's nutrition during various diseases,
- in cases of pancreatitis, pancreatic necrosis, cysts, and tumors of the head, body, and tail of the pancreas - distal and proximal resections (currently, only Prof. A. Adamyan performs this operation in Armenia),
- liver resections, removal of echinococcal cysts of any location,
- reconstructive surgeries of the bile ducts during choledocholithiasis, strictures, and tumor lesions,
- dissection of the small intestines with manual and instrumental anastomose placement, extraction, and closure of enterostomies,
- abdominal-perineal ectomy of the rectum, primary and inferior resection of the rectum, formation of anastomoses, and colostomy extraction and closure,
- operations on hernias, complicated by intestinal obstruction, and with prosthetic mesh,
- during complex combined surgical pathologies (laparoscopic nephrectomy, adrenalectomy, etc.), a multidisciplinary surgical team (gynecologists, oncogynecologists, urologists, etc.) performs operations simultaneously, or stage-by-stage,
- treatment of obesity laparoscopically (gastric banding, sleeve-gastrectomy, gastric bypass surgery, and BIB-intragastric balloon placement).
The service carries out colorectal surgery, performing diagnosis, conservative and surgical treatment of acute and chronic diseases of the rectum and colon, including treatment of patients suffering from severe conditions such as colon cancer, inflammatory or diverticular disease.
Exceptional surgical interventions are performed

- combined laparoscopic and transanal surgeries of rectal tumors,
- laparoscopic resection of the stomach in the case of ulcers and tumor pathologies,
- laparoscopic pancreaticoduodenal resection during oncological lesions of the pancreatic head, bile duct, and the papilla of Vater,
- bariatric interventions,
- Transoral diverticulectomy for Zenker's diverticulum.
Patients are diagnosed and treated with specialized devices and based on clinical, laboratory (general blood, biochemical, immunological, cytological), and instrumental examinations (ultrasound, endoscopic examinations, such as gastroscopy and colonoscopy, and highly informative radiological methods, such as roentgenography, roentgenoscopy, computed tomography, and magnetic resonance imaging).
You can register for a consultation with a gastroenterologist in Yerevan by calling 8900 or visiting Paronyan Street, 21 building.
List of diseases
Intestinal obstruction
Intestinal bleeding
Intestinal adhesions
Intestinal stenosis
Intestinal tumor
Foreign bodies and bezoars in the intestine
Inguinal hernia
Gastroesophageal reflux
Diverticulitis
Diverticulosis
Tumors of the head, body, and tail of the pancreas
Pancreatic cysts
Echinococcal cysts
Perforations
Gallbladder tumor
Gallbladder polyposis
Gallstone disease
Bile duct strictures
Neoplastic lesions of the bile ducts
Parasitic and non-parasitic cysts of the liver and spleen
Choledocholithiasis
Achalasia of the esophagus
Esophageal tumor
Obesity
Anterior abdominal wall hernia
Abdominal cysts
Abdominal tumors
Inflammatory fluid and abscesses in the abdominal cavity
Rectal tumor
Pancreatic necrosis
Peritonitis
Rectoperineal tumors
Rectoperineal cysts
Acute and chronic appendicitis
Gastric bleeding
Stomach tumor
Foreign body in the stomach
Hiatal hernia
Esophageal hiatal hernia
Zenker's diverticulum
Spleen pathology
Diaphragmatic hernia
Acute and chronic hemorrhoids
Rectal fissures
Anal fissures
Rectovaginal fistulas
Rectocele
Acute and chronic paraproctitis
Rectal fistulas
Epithelial coccygeal tracts
Transanal removal of rectal and anal tumors
Perianal condyloma acuminata
Rectovaginal fistulas
Epithelial coccygeal fistulas
Purulent inflammation of the skin of the anterior groin and sacrococcygeal region
Condyloma acuminata and papillomas
Tumors of the rectum and colon
Polyps of the rectum and colon
Rectal prolapse
Intestinal intussusception
Constipation (chronic)
Ulcerative colitis
Crohn's disease
Stomach and duodenal ulcer
Hepatitis of various origins
Liver cirrhosis
Acute and chronic pancreatitis
Helminthiases
Inflammation of the bile ducts
Anal sphincter insufficiency (fecal incontinence)
Doctors
News
Laparoscopic Surgery for Abdominal Hernias
A 40-year-old man weighing 160kg applied to undergo a stomach size-reducing operation for weight loss purposes
A 40-year-old man weighing 160kg applied to undergo a stomach size-reducing operation for weight loss purposes. According to him, he had tried various methods, which included keeping a special diet and exercising, but the lost weight was gained back again. The most he weighed was 168 kg.
The First Surgical Department of Nairi Medical Center Has Been Fully Renovated
“Nairi” Medical Center’s First Surgical Department Fully Renovated
Training Courses for Hernia Surgery
Head of the 1st surgical department of "Nairi" MC prof. Andranik Adamyan performed a course of laparoscopic hernia repair surgery, which was organized in cooperation with Medtronic․․․
Surgical treatment of tumors in less invasive laparoscopic method
Laparoscopic surgeries are more effective, because they provide clearer visibility. If we compare laparoscopic surgeries with the traditional open method...
For the First Time in Armenia: Transoral Surgery for Esophageal Diverticulum Performed at Nairi Medical Center
List of services
- ▸ Emergency Medical Aid
- ▸ Allergology
- ▸ Ophthalmology
- ▸ Anesthesia, Intensive Care, Resuscitation
- ▸ Gastroenterology and Endoscopy
- ▸ Gynecology and Women's Health
- ▸ Endocrinology
- ▸ Therapy
- ▸ Pulmonologist
- ▸ Pediatrics
- ▸ Dermatology
- ▸ Oncology and Chemotherapy
- ▸ Urology
- ▸ Rheumatology
- ▸ Dentistry
- ▸ Cardiology
- ▸ ENT and Audiology
- ▸ Rehabilitation medicine
- ▸ Proctology
- ▸ Pancreatitis Treatment
- ▸ Orthopedics Traumatology
