Gastric Sleeve Questions, Answered

The full name is vertical sleeve gastrectomy. Dr. El Djouzi removes roughly 80 to 85 percent of your stomach and closes what remains into a narrow tube about the shape and size of a banana.

Nothing gets rerouted. Your food travels the same path it always did, through the same valve at the bottom of the stomach and into the same intestine. That is the main difference between the sleeve and a bypass.

Two things drive the weight loss. The tube holds far less, so you feel satisfied on a small amount of food. And the part of the stomach that produces ghrelin, the hormone that makes you hungry, is the part that gets removed. Most patients notice their appetite is quieter within days.

The removed stomach is gone permanently. A sleeve can be converted to another operation later, but it cannot be undone.

The thresholds are lower than most people assume:

• A BMI of 40 or above on its own.
• A BMI of 35 to 39.9 with an obesity-related condition such as type 2 diabetes, heart disease, high blood pressure, or sleep apnea.
• A BMI of 30 to 34 in some cases, most often when type 2 diabetes is not responding to medication.

Beyond the numbers, we look for two things: that you have made real attempts at losing weight through diet and exercise without lasting success, and that you are prepared to change how you eat for good. The sleeve is a tool, not a cure.

Everyone goes through a medical workup, a nutrition assessment, and a psychological evaluation before we schedule anything. If the sleeve is the wrong operation for you, we will say so and tell you what fits better.

Weight loss is the visible part. The clinically interesting part is what happens to the conditions the weight was driving.

• Type 2 diabetes improves in most patients, and many reach remission.
• High blood pressure and abnormal cholesterol commonly improve enough to reduce or stop medications.
• Sleep apnea improves or resolves in the large majority of patients.
• Joint pain in the knees and hips eases as the load comes off.
• Urinary incontinence often resolves.

Patients also report more energy, better mobility, and better mood. Long-term studies of bariatric surgery show a measurable extension of life expectancy for people with severe obesity.

Every operation has them. Here is the honest list.

Short-term: bleeding, infection, blood clots, reactions to anesthesia, lung problems, and leaks along the staple line. Leaks are the one surgeons watch hardest for, and they are uncommon.

Longer-term: bowel obstruction or hernia from scar tissue, ulcers, gallstones from rapid weight loss, and nutritional deficiencies if you stop taking your vitamins. The sleeve can also worsen or trigger acid reflux, which is the single most common reason a sleeve gets converted to a bypass later.

The overall risk of a severe complication or death is under 1 percent. That puts it in the same range as gallbladder removal. Dr. El Djouzi is dual board-certified and fellowship-trained, with more than 2,400 procedures behind him, and operates at an accredited center with a full bariatric team.

Against the gastric bypass: the sleeve is a simpler operation with a shorter operating time, no intestinal rerouting, a lower risk of internal hernia and bowel complications, and a lower risk of vitamin deficiency. Dumping syndrome is far less common. The trade-off is that the bypass usually produces more weight loss and is the stronger choice for reflux and for diabetes.

Against the adjustable Lap-Band: the sleeve leaves no device in your body, so there is nothing to slip, erode, or need adjusting. Weight loss is typically greater.

The sleeve sits in the middle, and for most patients that middle is the right place to be. Which one is right for you depends on your reflux history, your diabetes, your BMI, and what you want your life to look like afterward.

• A full physical exam and blood work.
• A cardiac evaluation, usually an EKG, sometimes a stress test.
• Pulmonary function testing where indicated.
• A sleep study if we suspect sleep apnea.
• An upper endoscopy, which Dr. El Djouzi performs himself, to look at your stomach before he operates on it.
• A nutrition evaluation with a registered dietitian.
• A psychological evaluation.

Some of this is medically necessary and some of it your insurer requires. We manage both tracks so you are not chasing paperwork.

Stop smoking. At least six to eight weeks before your date, and stay stopped. Nicotine impairs healing and raises the risk of staple line problems. We will not operate on an active smoker.

Adjust your medications as directed, particularly blood thinners, diabetes medications, and NSAIDs.

Follow the pre-op diet. Details below.

Start moving. Whatever you can tolerate. Patients who arrive more active recover faster.

Practice eating slowly. Small bites, chewed thoroughly. Building the habit before surgery makes the first month far easier.

Set up at home. Stock protein shakes and broths, get your vitamins in the cupboard, and arrange help for the first few days. Plan on two to four weeks away from work depending on what you do.

For two to four weeks before your date you go on a very low-calorie diet, often around 800 to 1,000 calories a day. Protein shakes, lean protein, non-starchy vegetables, and very few carbohydrates. No sugar, no fried food, no carbonated drinks, no alcohol.

The point is your liver. It sits directly over the stomach, and in patients carrying excess weight it is enlarged and fatty. Two weeks of this shrinks it enough for Dr. El Djouzi to work safely around it.

The last day or two is clear liquids only, and you take nothing by mouth for about 12 hours before surgery.

It is the hardest part of the process for most people. It is also non-negotiable, and it starts your weight loss before you ever reach the operating room.

Usually, when the medical criteria are documented. Most plans want to see:

• BMI of 40, or 35 with obesity-related conditions.
• A history of documented weight-loss attempts.
• A medically supervised weight-loss program, commonly three to six months.
• Psychological clearance and nutrition counseling.
• Medical clearance confirming the surgery is necessary and safe for you.

Approval can take weeks to a few months. Some policies exclude weight-loss surgery outright, and Medicare and many Medicaid plans do cover it when criteria are met.

We verify your benefits before your first visit, at no cost. Call 773-365-1300 or text a photo of your insurance card and we will tell you exactly where you stand.

Our self-pay package for the gastric sleeve is $14,000. That covers the surgeon, the hospital, anesthesia, and your first six months of follow-up care. No surprise bills afterward.

For comparison, the gastric balloon package is $8,000 and gastric bypass is $23,000.

Third-party financing through MDsave and similar lenders lets you spread the cost. Many patients find the surgery pays for itself within a few years once the spending on diabetes medication, blood pressure medication, CPAP supplies, and weight-loss programs stops.

Laparoscopically, with robotic assistance. Dr. El Djouzi makes two to five small incisions in the abdomen and works through them with a camera and instruments.

He divides the stomach vertically along its length and removes roughly 80 to 85 percent of the greater curvature, then closes the remaining edge with rows of surgical staples to form the sleeve.

Nothing else is removed or rerouted. The pylorus, the valve at the bottom of the stomach, and the connection to the esophagus at the top are both left intact, which is why digestion afterward feels normal.

Before he closes, he tests the staple line for leaks.

One to two hours, and in most cases closer to 60 to 90 minutes. Add time on either side for anesthesia and positioning.

Anatomy varies. A patient with prior abdominal surgery and scar tissue takes longer than one without. Dr. El Djouzi would rather take the extra twenty minutes than rush a staple line.

One to two nights for most patients.

While you are there the team manages your pain, watches for early complications, and starts you on clear liquids to see how the new sleeve handles fluid. You will be walking the same day you have surgery, which is the single best thing you can do to prevent blood clots.

You go home when you can keep fluids down, control your pain with pills rather than an IV, and move around safely.

Faster than most people expect. You are walking the day of surgery, short distances at first, building up over the following week.

Pain is usually mild and managed with oral medication. Most patients are off prescription pain medicine within a few days of getting home.

The first one to two weeks are liquids, frequent rest, and a lot of small sips of water. Desk work and light activity usually resume in one to two weeks. Hold off on heavy lifting and hard exercise for four to six weeks.

Expect your energy to swing during the rapid weight-loss phase, and expect some emotional ups and downs. Both are normal and both settle.

Four phases, and you do not skip ahead.

• Weeks 1 to 2, liquids. Clear liquids first, then full liquids: water, broth, sugar-free gelatin, protein shakes, thin smoothies.
• Weeks 3 to 4, pureed. Smooth, applesauce consistency. Blended lean protein, yogurt, pureed vegetables.
• Weeks 5 to 6, soft foods. Anything you can mash with a fork: ground meat, flaked fish, soft-cooked vegetables, soft fruit.
• Week 7 onward, regular food. Protein first, then vegetables, then a small amount of complex carbohydrate if you still have room. You usually will not.

Portions stay at half a cup to one cup per meal. Eat slowly, chew thoroughly, and do not drink with your meals, stopping 30 minutes before and waiting 30 minutes after. Carbonation, alcohol, sugary foods, and fried foods stay off the list.

For life. This is the part patients underestimate and it is the part that causes preventable problems years later.

• Bariatric multivitamin, usually twice daily.
• Calcium citrate, 1,200 to 1,500 mg daily in divided doses. Citrate, not carbonate, which is poorly absorbed after surgery.
• Vitamin D3, 3,000 to 5,000 IU daily.
• Vitamin B12, 500 to 1,000 mcg daily under the tongue, or a monthly injection.
• Iron, often included in the multivitamin. Menstruating women frequently need more, taken separately from calcium.

In the early weeks use chewable or liquid forms. Spread them through the day rather than taking everything at once. Your exact doses come from your lab work, which we check every three to six months at first and annually after that.

In the first year, visits at roughly one week, one month, three months, six months, nine months, and twelve months. We use a mix of virtual and in-person appointments so you are not driving in for everything.

Each visit covers weight, labs, diet, and how you are actually doing, which matters as much as the numbers.

After the first year, annual or twice-yearly visits, with blood work each time. Patients who keep their follow-up appointments lose more weight and keep more of it off. That relationship shows up in every long-term study, and it is the reason our self-pay package includes six months of follow-up rather than ending at the operating room door.

The average is 50 to 60 percent of your excess weight, reached over 12 to 18 months. Individual results range from about 30 to 80 percent.

In plain numbers: if you are 100 pounds above your ideal weight, expect to lose somewhere around 50 to 60 of those pounds.

What moves you toward the top of that range is not luck. It is protein intake, activity, and keeping your follow-up appointments.

• Month 1: roughly 10 to 20 pounds, some of it fluid and the tail end of the pre-op diet.
• Months 2 to 6: the steepest stretch, typically 2 to 4 pounds a week. This is when other people start noticing.
• Months 7 to 12: slows to 1 to 2 pounds a week as your body adapts.
• 12 to 18 months: levels off at your new baseline.

Stalls where the scale does not move for two or three weeks are normal and happen to almost everyone. They are not a sign the surgery failed. Keep your protein up, keep moving, and it breaks.

To a degree, yes. Stomach tissue is elastic and the sleeve keeps that property.

Right after surgery the sleeve holds about 2 to 3 ounces. Over time it commonly expands to 6 to 8 ounces. For context, your original stomach held about 1,400 ml, roughly a quart and a half. So even a stretched sleeve is a fraction of what you started with.

Some expansion is normal and expected. What causes excessive stretching is consistently eating past fullness, grazing all day, drinking with meals, and carbonated beverages.

If a sleeve dilates enough to cause significant regain, it can be tightened endoscopically or converted to another procedure. We would rather prevent that with follow-up.

Your body tells you immediately, and it is not subtle. Pressure or pain high in the abdomen, nausea, and often vomiting as your stomach clears what it cannot hold. Food may come back up into your throat, especially lying down.

Eating something high in sugar or fat can trigger dumping syndrome, less common after a sleeve than a bypass but still possible: racing heart, sweating, dizziness, diarrhea.

Do it repeatedly and you stretch the sleeve, increase your reflux risk, and lose the restriction you paid for.

Most patients learn the fullness signal within a few weeks and stop at it. Small utensils help. So does putting the fork down between bites.

Probably some. How much depends on how much weight you lose, your age, your genetics, how fast you lose it, and where you carried the weight. Younger skin retracts better, but anyone losing 100 pounds or more should expect some.

The usual areas are the abdomen, upper arms, thighs, breasts, and neck.

Exercise builds the muscle underneath and improves how you look in clothes, but it does not remove excess skin, and creams do not either. Compression garments help you manage it day to day.

If you want it removed, body contouring is considered once your weight has been stable for 12 to 18 months. Options include abdominoplasty, arm lift, thigh lift, and breast lift. Insurance sometimes covers removal when the skin causes rashes or recurrent infections, which requires documentation.

Permanently, and more than you expect.

• Portions: half a cup to one cup of food per meal.
• Technique: small bites, chewed 20 to 30 times, fork down between bites.
• Timing: a meal takes 20 to 30 minutes even though there is very little on the plate.
• Order: protein first, then vegetables, then carbohydrates if there is room.
• Fluids: nothing to drink for 30 minutes before a meal, during it, or for 30 minutes after.
• Frequency: three small meals with one or two protein snacks.

Many patients develop new intolerances, commonly to red meat, dairy, bread, rice, and pasta. Tastes shift too. Things you loved may stop appealing to you. The adjustment is real, and by a few months in it is simply how you eat.

Not for the first 6 to 12 months, and carefully after that.

Alcohol hits harder and faster after a sleeve. Your liver is busy processing protein and your stomach no longer slows absorption the way it did. One drink can feel like several, and it can happen quickly enough to surprise you.

There is also the calorie problem, alcohol is empty calories that stall weight loss, and the irritation problem, alcohol is hard on a healing staple line.

The one to take seriously is transfer addiction. Food is a coping mechanism for many people, and when it is no longer available some patients substitute alcohol. If you have any history of alcohol use disorder, we will likely advise permanent abstinence.

If you do drink later: never on an empty stomach, never more than a small amount, and never drive afterward, even on one.

Yes, and for many women pregnancy becomes safer after weight loss than it would have been before.

Wait 12 to 18 months. During the rapid loss phase your body is running a calorie deficit that cannot support a pregnancy well, and deficiencies in folate or B12 raise the risk of birth defects.

Fertility often improves quickly after surgery. Women who had irregular cycles or trouble conceiving may start ovulating regularly within months, which means reliable contraception matters from the day of surgery. Unplanned pregnancies in the first year are common enough that we raise it with every patient of childbearing age.

Once you are pregnant, you need an obstetrician who has managed post-bariatric patients, more frequent lab monitoring, adjusted supplementation, and modified weight-gain targets. Managed properly, pregnancy after bariatric surgery carries lower rates of gestational diabetes, hypertension, and oversized babies than pregnancy with obesity.

• Weeks 1 to 2: walking, 5 to 10 minutes several times a day.
• Weeks 2 to 4: walking 15 to 20 minutes, two or three times daily. Light stretching.
• Months 1 to 3: 30 minutes of walking daily. Add resistance bands or light weights once cleared. Water exercise and stationary cycling work well here.
• Month 3 onward: 150 to 300 minutes of moderate aerobic activity per week, plus strength training two or three times weekly covering all the major muscle groups.

Strength training matters more than most patients realize. During rapid weight loss you lose muscle alongside fat, and resistance work is what protects it. Protecting muscle protects your metabolism.

Pick something you actually enjoy. Consistency beats intensity every time.

Most patients report better self-esteem, less depression and anxiety, more confidence socially, and more independence as mobility improves.

The harder parts are real too. Food is a coping mechanism, and losing it without replacing it leaves a gap. Rapid changes in appearance can be disorienting. Relationships shift as people react to the new you, sometimes in ways you did not expect. Plateaus and regain can hit hard emotionally. Excess skin can complicate body image even after a successful outcome.

There is also the transfer addiction risk mentioned above, where alcohol, shopping, or gambling takes food's place.

The psychological adjustment runs long after the physical recovery is finished. Support groups specifically for bariatric patients help more than general ones. Individual therapy is worth it if emotional eating was part of what brought you here.

Some regain is normal. Most patients bottom out around 12 to 18 months and drift up 5 to 10 percent of total body weight afterward as the body finds equilibrium.

Significant regain, meaning more than 25 percent of what you lost, affects roughly 20 to 30 percent of patients within five years.

The causes are usually a combination: the sleeve dilating, hormonal and metabolic adaptation, and behavior drifting back, particularly grazing, liquid calories, and activity dropping off. Unresolved emotional eating is often underneath it.

What works is catching it early. Patients who keep coming to follow-up appointments catch a 10-pound regain when it is 10 pounds. Patients who disappear for three years come back having regained 60.

It cannot be reversed. The removed stomach is gone.

It can be revised, and Dr. El Djouzi does a large volume of exactly this work:

• Sleeve to gastric bypass. The standard answer for severe reflux that medication is not controlling, and a strong option for regain.
• Sleeve to SADI-S. Adds a malabsorptive component for patients who need substantially more weight loss.
• Re-sleeve. Tightening a dilated sleeve.
• Endoscopic revision. Tightening from the inside, no external incisions.

Revisions carry more risk than a first operation because scar tissue makes the anatomy less predictable. Before we recommend one you will have an endoscopy, imaging, a nutrition assessment, and a review of your original operative report. If a revision is the wrong answer, we will tell you that.

At the five-year mark, patients typically maintain 60 to 70 percent of their excess weight loss.

The conditions hold up too:

• Type 2 diabetes: about 60 to 80 percent still significantly improved or in remission.
• High blood pressure: roughly 70 percent improved.
• Sleep apnea: around 80 percent improved.
• Abnormal cholesterol: about 65 percent improved.

Quality of life, mobility, and psychological wellbeing stay improved at five years and beyond for most patients.

The variables that separate the good five-year outcomes from the poor ones are consistent: follow-up attendance, physical activity, sticking to the nutrition plan, and dealing with the psychological side rather than ignoring it.