Gastroenterologie Guatemala | Dr. Alejandro Hernández Monroy


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In der Klinik

Verfahren und Behandlungen:

Barrett’s Esophagus
Ulcerative Colitis
Colon cancer detection
Irritable Bowel Syndrome
Digestive Tract Treatments
Digital Chromoendoscopy
Early Detection of Cancer
Esophageal Blockage
Gastric Ulcers
Gastrointestinal Hemorrhage
Helicobacter pylori
High-resolution Video Endoscopy
Liver - Hepatitis
Reflux Disease
Resection of Gastric Polyps
Sclerosis and Ligature of Esophageal Varices
Gastric Cancer


„We are dedicated to treating each patient with human warmth and prompt efficiency, providing a diagnosis that can make the difference between getting a fast treatment or an effective one“

Dr. Alejandro Hernández Monroy is a specialist in gastroenterology, having performed over 20,000 medical procedures during his career as a gastroenterologist, having a great track record since the mid-1980s. To obtain his specialty in gastroenterology and digestive endoscopy at Kobe University in Japan.

In the clinic, he regularly treats patients with gastritis, which is the inflammation of the stomach lining, and Helicobacter pylori, which is a type of bacteria that causes infections in the stomach and is one of the most common causes of peptic ulcers. These bacteria are very common in childhood and can be present in more than half of the world’s population, with most people being asymptomatic. It also treats gastric ulcers, pancreatitis, and gastroesophageal reflux.

Gastrointestinal endoscopy, which is commonly used in this specialty, is a diagnostic test that allows the doctor to view the inside of the upper digestive tract which includes the esophagus, stomach, and the first part of the small intestine. This is done using a tool called an endoscope or viewing tube. It has a very small camera attached to a long, thin tube. By inserting the endoscope through an opening or into the body’s tunnel cavities, the inside of the digestive organs can be seen and the diagnosis made with high accuracy.

It also performs colonoscopy, which allows direct observation of the inside of the large intestine, the colon, and the last portion of the small intestine. There are also occasions when it is used as a treatment, for example, for the removal of polyps in the colon.

Dr. Hernández Monroy is an expert in the early detection and treatment of cancers of the digestive system. The latter includes the pharynx (throat), mouth, stomach, esophagus, large intestine, small intestine, anus, and rectum. It also includes the liver, salivary glands, pancreas, and gallbladder, which make the enzymes and digestive juices used during digestion. Dr. Alejandro Hernández Monroy believes it is important to educate his patients, so they can learn to see the signs and symptoms of colon and rectal cancer early. This allows it to be detected early and allows patients to have more treatment options.

Dr. Hernández Monroy is the founder of GASTRO S.A., a group of six specialists, located on the eighth floor of the Multimedica Building in zone 15 of Guatemala City. They have several clinics, offices, and treatment centers with the latest endoscopic and laser technology, which allows them to treat patients with the highest worldwide standards available. Among them, they perform high resolution and magnification video endoscopy, which increases the quality of the image and at the same time allows for better characterization of the lesions. In addition, they have a pharmacy on-site, so they can ensure that patients receive the correct medications and dosage instructions.

„A doctor must be, as a person and as a physician, ethical, responsible, and experienced, so he can really help his patients.“


Kendal Regional Medical Center, Miami Florida, USA

International Exchange Award granted to “GASTRO S.A.” Guatemala City, 2005

Gastroenterologist Partner at Grupo Gastro S.A Multimedica

Head Gastroenterologist at San Juan de Dios Hospital, Hospital Roosvelt 1918 to 1993

Professor of Internal Medicine and Gastroenterology, University of San Carlos de Guatemala, 1982 to 1988

Internal Medicine and Gastroenterology Professor at San Carlos University from 1982 to 1988

Gastroenterologist at Bella Aurora Hospital and Nuestra Señora del Pilar Hospital

President and Founder of  Gastroenterology Private Institute “Gastro-Diagnóstico” 1992-2005

President and Founder of  “Endo Diagnosis” 1995-2005

President  of  Guatemalan Gastroenterology Association, from 1997 to 1998

President and Founder of “DIFISA” (Physiological Diagnosis Gastrointestinal) from 1999 to 2009

Founder Member of  “Grupo Gastro, S.A.” (Guatemala y Escuintla)

Member of the Latin American Council on Irritable Bowel Syndrome, 1993

Research Work, Phase II and Phase III.

At Multicenter, Randomized, Parallel-Group, Active-and Controlled

  • A double blind Study Conducted under In-House Blinding Conditions, to Determine The Incidence of Gastroduodenal Ulcers in patients with Rheumatoid Arthritis after 12 weeks of treatment with MK-0966, naproxen, or placebo: año 1999-2000 Secondary Investigator.
  • A clinical study investigating the characteristics of recurrence of symptoms after withdrawal of treatment, in comparison to continuation of treatment, in patients with constipation-predominant Irritable Bowel syndrome responding favorably to treatment with Tegaserod, a 5-HT4-Receptor partial agonist.  Phase III 2001-2002.  Primary Investigator.

College of doctors and surgeons: Active Collegiate 2093

Guatemalan Association of Gastroenterology, Hepatology and Digestive Endoscopy

Central American Association of Gastroenterology

Pan American Association of Gastroenterology and Digestive Endoscopy

American Gastroenterological Association (AGA) Certified Member Since July 01,1997 (No. 167930)

Asociación Puertorriqueña de Gastroenterología – APG

American Gastrointestinal Association – AGA

Gastroenterology European Congress, Madrid, España

Im akademischen Bereich

Medicine Faculty at San Carlos University from Guatemala,1968 to 1974

Physician and Surgeon degree obtained on April 8, 1975

Internal Medicine postgraduate degree at San Carlos University  and

San Juan de Dios General Hospital, Guatemala, from 1975 to 1978

Kobe University, Japan, Second Department of Internal Medicine,

Gastroenterology and Digestive Endoscopy from 1978 to 1980


Gastroenterologist and Internal Medicine | Dr. Alejandro Hernandez - Spanish
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Dr. Alejandro Hernandez, Gastroenterologist Guatemala | Gastro, S. A