Delayed emptying is not one diagnosis
A slow gastric emptying study proves your stomach empties slowly. It does not prove that slow emptying is what is causing your symptoms.
That distinction explains most of the disappointment patients experience with gastroparesis treatment. The National Institute of Diabetes and Digestive and Kidney Diseases points out that a gastroparesis diagnosis requires both delayed emptying and symptoms, and that in some studies up to half of people with diabetes have delayed gastric emptying while most of them have no digestive symptoms or only mild ones. Slow numbers and severe symptoms are two separate findings. They have to be connected before a procedure makes sense.
Several conditions produce nausea, bloating, early fullness and vomiting that look identical to gastroparesis from the outside:
- Medication effect. Opioid pain relievers, some antidepressants, and certain blood pressure and allergy drugs slow the stomach and can worsen gastroparesis in people who already have it.
- Achalasia and other esophageal motility disorders. These need manometry to identify and a different operation entirely.
- A large hiatal hernia. Dr. Grandhige repairs hiatal hernias larger than 3 centimeters, partly because the larger the hernia, the more likely an atonic stomach develops. An atonic stomach may or may not improve once the hernia is repaired, and patients are told that before surgery, not after.
- Severe reflux. Gastroparesis frequently drives it, and which one you treat first changes the plan.
- Functional conditions such as rumination and esophageal hypersensitivity, which no procedure aimed at the pylorus will correct.
- Post-surgical gastroparesis following a previous foregut or bariatric operation.
Dr. Grandhige puts it to patients this way: “The operation is the last step. The decision-making is the surgery.”

The testing that comes before any procedure
Objective testing comes before any recommendation, and each test answers a different question.
The four-hour gastric emptying study is the primary test. You eat a light meal containing a small amount of radioactive tracer, commonly eggs and toast or oatmeal, and a scanner over your abdomen tracks how much leaves the stomach across four hours.
Upper endoscopy evaluates anatomy and complications. It is not ordered to diagnose gastroparesis. It becomes suggestive when food is still sitting in the stomach after an overnight fast, which should not happen.
Esophageal manometry measures the strength and coordination of the esophagus and the function of the lower esophageal sphincter. This is how achalasia, spasm and ineffective motility get separated from gastroparesis. Those disorders can present with nausea, regurgitation and chest discomfort, and they are not treated the same way.
A barium swallow or functional esophagram shows what happens during an actual swallow rather than at rest. One finding from Dr. Grandhige’s practice is worth knowing before your appointment: where a patient feels food getting stuck matches where the delay is actually occurring only about 60 percent of the time. Patients who point to their throat are often shown, on imaging, a delay in the lower esophagus.
pH impedance testing gets added when reflux symptoms coexist, which they often do.
Dr. Grandhige personally reviews all outside records before you arrive, and the practice works with a small number of testing sites so studies can be scheduled quickly and interpreted consistently.
Endoscopic pyloromyotomy, and the patients who are turned down
Endoscopic pyloromyotomy, also called G-POEM or POP, is performed through the mouth with a flexible endoscope. A small tunnel is created under the pyloric muscle, then the muscle is divided with an endoscopic knife to reduce resistance at the stomach outlet. There are no abdominal incisions. Dr. Grandhige is one of only a handful of physicians performing this procedure in Tampa Bay.
It is not the only option, and that matters. A robotic or laparoscopic pyloroplasty divides the pyloric sphincter through small abdominal incisions and reshapes the valve for longer-term effect. The honest trade-off: permanently opening the pylorus can let small intestine contents reflux back into the stomach, or cause diarrhea with certain meals. For patients who arrive with severe weight loss and malnutrition, venting and feeding procedures come first so nutrition is safe enough to consider anything definitive. Subtotal gastrectomy is reserved for rare cases with severe disease unresponsive to everything else. A surgeon who performs only one of these has one answer for every patient.
About Dr. Gopal Grandhige, MD

Gopal Grandhige, MD is a board-certified general surgeon and the founder and medical director of Tampa Bay Reflux Institute. He founded Tampa Bay Reflux Center in 2009 and has practiced foregut surgery in Tampa Bay ever since.
He earned a Bachelor of Science in Biology at Johns Hopkins University and his medical degree at the University of Michigan, Ann Arbor. He completed his general surgery residency at Yale-New Haven Hospital, followed by fellowships there in burn and critical care and in foregut and minimally invasive surgery.
He is a Fellow of the American College of Surgeons, a member of the Society of American Gastrointestinal and Endoscopic Surgeons, and a founding member of the American Foregut Society. Across his foregut practice he has performed over 600 fundoplications, over 600 LINX procedures and over 200 TIF procedures. Those are anti-reflux operations rather than gastroparesis procedures, and they are listed here because pyloric work sits inside the same specialty and the same operating room team. His full background and how the practice is structured are on the about page.
Patients are encouraged to check this independently. Active licensure and any disciplinary history can be confirmed through the Florida Department of Health license verification portal, and board certification through the American Board of Surgery physician lookup.
Getting to the office from Wesley Chapel
Tampa Bay Reflux Institute 1315 South Howard Ave., Suite 101 Tampa, FL 33606 Phone: 813.922.2920 Fax: 813.742.0711 Hours: 9 a.m. to 6 p.m., Monday through Friday
The drive is I-75 south to I-275, then east toward the Howard Avenue and Hyde Park area, roughly 30 to 40 minutes depending on traffic. The office is in a yellow brick building next to Sally O’Neill’s Pizza. Parking is behind the restaurant, not on Howard Avenue.
Patients also come from South Tampa, Hyde Park, Palma Ceia, Bayshore, Westchase, Carrollwood, Brandon, Riverview, Clearwater and St. Petersburg, and travel in from Orlando, Sarasota, Naples, Fort Myers, Miami, Jacksonville and the Panhandle.
Frequently asked questions
Bring your records, get a straight answer about whether a procedure will help, and leave understanding what is actually causing your symptoms. That is the goal of the visit, whether or not surgery ends up on the table.
An endoscopy cannot tell you if you have reflux. It can only tell you if you have complications of GERD.
If you are unhappy with your reflux symptoms, come in and we can discuss testing and treatments that can accurately diagnose your problem.
#reflux #gerd #hiatalhernia #gastroparesis #linx
CALL US AT 813-922-2920
www.tampareflux.com
If you have a hiatal hernia and fit one of these categories, you should know your options.
Dr. Grandhige is an expert in his field and performs 200 of these surgeries a year. He is the only surgeon in the Tampa Bay Area who offers all surgical options - LINX, Fundoplications, TIF and will be one of 20 surgeons in America introducing the latest procedure RefluxStop in 2026.
We accept most insurances but will verify yours before you come in. These procedures are considered medically necessary and covered by your insurance. You can expect to pay your in-network deductibles and nothing else.
#hiatalhernia #reflux #GERD #LINX #refluxstop
What causes reflux ?
1. Weak lower esophageal sphincter
2. Hiatal hernia
3. Flattening of the Angle of His
4. Poor esophageal motility
5. Gastroparesis (slow stomach)
NOT increased acid production
Don’t let GERD get in the way of living your life. Request your appointment with us today on the link below.
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https://tampareflux.com/contact-us/
Anyone can be victim to GERD and though weight loss can help reduce GERD symptoms. Many athletes with high impact workouts may continue to have these symptoms. This may be a symptom of a hiatal hernia or other issue. We are more then happy to assist you in finding your solution, just click the link below.
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https://tampareflux.com/contact-us/
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#nonsurgicalweightloss #ESG #gastricballoon #weightlossjourney #vsg #vsgjourney #spatz3 #orbera #orberaballoon #grandhige #DrG
#tampabayrefluxinstitute #guthealth #roboticsurgery
Heartburn may seem like an annoyance. But if you find yourself having symptoms on a daily basis, it may be time to to talk to Dr. Grandhige as it could be a symptom of something worse.
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#chronicheartburn #gerdsymptoms #heartburnrelief #reflux #PPIs #heartburn #LINX #fundoplication #TIF #GERD#tampaheartburn #linx #TIF #fundoplication #tampabayreflux #GERD #acidreflux #acidrefluxsurgery #stopreflux
#nonsurgicalweightloss #ESG #gastricballoon #weightlossjourney #vsg #vsgjourney #spatz3 #orbera #orberaballoon #grandhige #DrG
#tampabayrefluxinstitute #guthealth #roboticsurgery
If you are tired of avoiding your favorite foods or taking daily medications, we can help.
We are the Tampa experts in reflux ! With years of experience and thousands of patients treated successfully, we offer all FDA approved anti-reflux procedures.
Call 813-922-2920 to schedule your appointment
All major insurances accepted.
Not all patients need surgical intervention. Many patients are living a heartburn free life with their PPIs. However 40% of patients taking PPIs are not getting the relief they need. If you are one of those, you have options! Come in and find out more.
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#nonsurgicalweightloss #ESG #gastricballoon #weightlossjourney #vsg #vsgjourney #spatz3 #orbera #orberaballoon #grandhige #DrG
#tampabayrefluxinstitute #guthealth #roboticsurgery
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