Treatment
without surgery
Dr. Ahmed Ouni and our team treat the bile ducts, pancreas, esophagus and stomach through the endoscope: no incisions, home the same day, and back to the meals and the people you love.
A different kind
of GI care
Mayo Clinic fellowship training and advanced endoscopy training at Baylor, close to home in Kingwood. A careful diagnosis, treatment without surgery whenever possible, and a plan built around you as a whole person.
ADVANCED ENDOSCOPY
Everything we do starts with careful general gastroenterology. Advanced endoscopy builds on that foundation, letting us treat through the endoscope many problems that once needed an operation, with no cuts on the skin and home the same day. The one exception is cTIF, where a surgeon repairs the hernia through small keyhole incisions.
ERCP combines endoscopy and X-ray to reach the bile and pancreatic ducts through the mouth, without surgery. Cholangioscopy
Cholangioscopy passes a very thin camera through the ERCP scope directly into the bile duct, so we can see the inside of the duct, break up large stones and take precise… Biliary stenting
A biliary stent is a small plastic or metal tube placed in the bile duct during ERCP to hold it open, so bile can drain and jaundice can clear. Pancreatic duct stenting & stones
Pancreatic duct stenting and stone removal is done during ERCP to open narrowings and clear stones from the pancreatic duct in chronic pancreatitis.
TIF rebuilds the valve between the esophagus and stomach through the mouth, with no incisions, and cTIF adds hernia repair by a surgeon in the same session. ARMA
Anti-reflux mucosal ablation (ARMA) is a newer endoscopic treatment for reflux that tightens the tissue just below the valve between the esophagus and stomach. Radiofrequency ablation (RFA)
Radiofrequency ablation treats Barrett's esophagus by removing the abnormal lining with controlled heat through an endoscope. Endoscopic mucosal resection (EMR)
Endoscopic mucosal resection (EMR) removes large flat polyps and early lesions from the lining of the colon, esophagus or stomach through an endoscope, without surgery.
Endoscopic sleeve gastroplasty (ESG) reduces the size of the stomach from the inside, using stitches placed through an endoscope, with no incisions. TORe (gastric bypass revision)
Transoral outlet reduction (TORe) is an endoscopic procedure for people who regain weight after Roux-en-Y gastric bypass. Endoscopic suturing & stenting
Endoscopic suturing and stenting let many problems that once needed surgery be treated through the endoscope. Enteral stenting
Enteral stenting places a self-expanding metal stent to open a blockage in the esophagus, stomach outlet, duodenum or colon, so a person can eat or pass stool again.
Endoscopic ultrasound (EUS) puts a tiny ultrasound probe on the tip of the endoscope. It lets us see through the wall of the stomach and intestine and guide a needle, drain or stent to the exact spot, without cuts on the skin.
Close-up imaging and a needle sample in one procedureEUS-guided liver biopsy
Liver samples from the inside, no needle through the skin
Pseudocysts and walled-off necrosis drained into the stomachGallbladder drainage
For gallbladder infection when surgery is not safeLiver abscess drainage
Infected fluid in the liver drained from the insideBiloma drainage
Bile leaks that collect after surgery or injuryPostoperative fluid collections
Collections after abdominal surgery, often without another operationPelvic abscess drainage
Deep pelvic infections reached through the rectum
Opens a blocked bile duct when ERCP cannot reach itEUS-guided pancreatic duct drainage
Relieves a blocked pancreatic duct when standard access failsEUS-guided gastroenterostomy
A new path from stomach to intestine around a blockage
Nerve injection to ease pancreatic cancer or pancreatitis painFine-needle tattooing
Marks a small tumor so the surgeon can find itEUS-guided Botox injection for achalasia
Relaxes a tight lower esophageal valve so food can passEUS-guided treatment of bleeding
Coils or glue placed precisely into bleeding gastric varices
BOOK ONLINE
Your first visit is a conversation. No procedure is scheduled until you understand the plan and feel comfortable with it.
LOCATIONS
Kingwood, TX 77339
Near HCA Houston Healthcare Kingwood
Clinic hours: Monday to Friday, 9 AM to 5 PM
(832) 707-5011
NEW YORK UNIVERSITY
UNIVERSITY OF FLORIDA
MAYO CLINIC
BAYLOR COLLEGE OF MEDICINEWHAT BRINGS YOU IN
Choose what you are dealing with to learn what it is, how it is found and how it can be treated.
Hover over an organ, then click to open its guide. Illustration adapted from Blausen Medical, CC BY 3.0.
UNDERSTAND YOUR CONDITION
Clear, plain-language guides: what you have, what it means and how it is treated. Choose a topic to start.
GENERAL GI
General gastroenterology is the heart of our practice. From screening to long-term care, every topic below has a full guide.
- Colon cancer screeningScreening looks for colon cancer, and the polyps that can turn into it, before you have any symptoms. Read the guide ›
- Colon polypsA colon polyp is a small growth on the lining of the colon or rectum. Read the guide ›
- HemorrhoidsHemorrhoids are swollen veins in the lower rectum and anus. Read the guide ›
- Anal fissureAn anal fissure is a small tear in the lining of the anus, usually from passing a hard or large stool. Read the guide ›
- Irritable bowel syndrome (IBS)IBS is a common condition in which the gut and brain do not communicate normally. Read the guide ›
- DiverticulitisDiverticula are small pouches in the colon wall, common after age 50. Read the guide ›
- Ulcerative colitisUlcerative colitis is an inflammatory bowel disease that causes inflammation and ulcers in the lining of the colon and rectum. Read the guide ›
- Crohn's diseaseCrohn's disease is a lifelong inflammatory bowel disease that can affect any part of the digestive tract. Read the guide ›
- Microscopic colitisMicroscopic colitis causes chronic watery diarrhea. Read the guide ›
- Celiac diseaseCeliac disease is an immune reaction to gluten, a protein in wheat, barley and rye. Read the guide ›
- SIBOSmall intestinal bacterial overgrowth (SIBO) happens when too many bacteria grow in the small intestine. Read the guide ›
- H. pyloriHelicobacter pylori is a common bacterium that infects the stomach lining. Read the guide ›
- Stomach ulcersA peptic ulcer is an open sore in the lining of the stomach or the first part of the small intestine. Read the guide ›
- GastroparesisGastroparesis means the stomach empties too slowly, without a blockage. Read the guide ›
- Dumping syndromeA condition in which food moves from the stomach into the small intestine too quickly. Read the guide ›
- Eosinophilic esophagitisEosinophilic esophagitis, or EoE, is an allergic inflammation of the esophagus. Read the guide ›
- GallstonesGallstones are hard deposits that form in the gallbladder. Read the guide ›
- Fatty liverFatty liver disease, now called MASLD, usually causes no symptoms and is often found on routine blood work or an ultrasound. Read the guide ›
- Hepatitis B & CHepatitis B and C are viral infections of the liver that can cause scarring over years, often with no symptoms. Read the guide ›
- CirrhosisCirrhosis is advanced scarring of the liver after years of injury. Read the guide ›
- ColonoscopyA colonoscopy examines the entire colon and rectum with a thin, flexible camera. Read the guide ›
- Upper endoscopy (EGD)An upper endoscopy, or EGD, uses a thin, flexible camera passed through the mouth to examine the esophagus, stomach and first… Read the guide ›
- Esophageal dilationEsophageal dilation gently stretches a narrowed area of the esophagus with a balloon or dilator during upper endoscopy, so food… Read the guide ›
- Variceal bandingVariceal banding places small rubber bands on enlarged veins (varices) in the esophagus caused by cirrhosis, to prevent or treat… Read the guide ›
- PEG tube placementPEG tube placement uses endoscopy to place a feeding tube through the abdominal wall into the stomach, for people who cannot eat… Read the guide ›
- Capsule endoscopyCapsule endoscopy uses a camera the size of a large vitamin that you swallow. Read the guide ›
- Hemorrhoid bandingRubber band ligation is a quick treatment for internal hemorrhoids that keep bleeding or bulging. Read the guide ›
- Anorectal manometryAnorectal manometry measures how well the muscles and nerves of the rectum and anus work together. Read the guide ›
- FibroScanFibroScan is a quick, painless scan done in the office that measures liver stiffness and fat. Read the guide ›
MEET DR. OUNI
Born in Tunis, on the Mediterranean, Dr. Ahmed Ouni is a board-certified Houston gastroenterologist, seeing patients in Kingwood, Texas, with Houston Regional Gastroenterology Institute. He specializes in advanced endoscopy, including ERCP, endoscopic ultrasound (EUS), TIF and the endoscopic sleeve, treating the bile ducts, pancreas, esophagus and stomach without surgical incisions.
He studied neuroscience at New York University, earned his medical degree and completed internal medicine residency at the University of Florida, trained in gastroenterology at Mayo Clinic and completed an advanced endoscopy fellowship at Baylor College of Medicine. He is board certified in internal medicine and gastroenterology and serves as core faculty for the University of Houston Kingwood gastroenterology fellowship, teaching the next generation of GI physicians. He sees patients in English, Arabic and French.
BOOK A VISIT WITH DR. OUNIRefer a patient
Primary care physicians, surgeons and oncologists across Houston, Kingwood, Humble, Atascocita and Northeast Houston refer patients for advanced endoscopy and complex GI care: ERCP for bile duct stones and strictures, EUS with FNA/FNB for pancreatic cysts and masses, staging and tissue diagnosis, endoscopic drainage of fluid collections, TIF for reflux and the endoscopic sleeve for weight loss. Routine colonoscopy, upper endoscopy and clinic consultations are welcome too.
We send a clear report back after every visit and procedure, so you stay part of your patient's care.