Dr Jon Morrow manages a number of general surgical conditions. Operations can be performed either by a minimally invasive approach (keyhole surgery) or as an open procedure. The best method will be tailored to you.

Successful weight loss requires a combination of both lifestyle changes (including diet and exercise) and surgery. A range of different weight loss surgical procedures (band, sleeve, bypass) are available. Any and all options can be discussed.

Gallstones are very common and can cause a variety of conditions ranging from minor to severe. Surgical removal of the gallbladder via keyhole surgery is the recommended treatment.

Hernias come in all shapes and sizes and should, if possible, be fixed. They can be repaired via a traditional open approach or by using minimally invasive (keyhole) surgery.

Dr Jon Morrow

General & Bariatric Surgeon

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Contact Details

Consulting Rooms:

Ascot Central

Level 1, 7 Ellerslie

Racecourse Drive

Remuera, Auckland

Phone: 09 522 4103

Fax:     09 522 5136


Also Consulting at:

Ormiston Hospital

125 Ormiston Road

Botany Junction

Operating Theatre:

Mercy Ascot Hospitals

Ormiston Hospital

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Laparoscopic Gastric Bypass


BMI>40kg/m2 BMI>35kg/m2 with co-morbidities Specialist recommendation Description Laparoscopic (keyhole) gastric bypass is performed under general anaesthesia. An incision is made below the lower margin of the left rib cage, a port is placed through this incision, and CO2 introduced to inflate the abdomen and create a working space. A camera (laparoscope) is then introduced and under direct vision, a further 4 incisions are made. The left lobe of the liver is lifted to adequately expose the stomach. A small pouch of approximately 30-50ml is created at the top of the stomach using staplers. The small bowel is then divided and brought up to this pouch and joined together (anastomosed). Another join is created between 2 pieces of small bowel further down in the abdomen. A tube is placed via the nose into your new smaller stomach at the end of the procedure (The tube will be removed 2 to 3 days later on the ward).The skin is closed with an absorbable suture. Follow-up: You will be seen 1 week after surgery then 3 to 6 monthly for the first year then annually. The dietician will see you within 4 weeks of surgery. Expected Weight Loss Approximately 60-70% of excess weight. Advantages Proven track record Small and varied meals No foreign body Less intensive follow-up – 3 to 6 monthly Disadvantages Nutritional deficiencies Dumping syndrome Internal hernia Complications Death (1/500) Leak Bleeding – from spleen, liver, omentum (an apron of fat attached to the stomach), skin incisions Conversion to open procedure Prolonged hospitalisation Further surgery/procedures Hernia – internal or external Infection – wound, chest, urine, drip site, intra-abdominal Deep venous thrombosis (blood clots in legs) Pulmonary embolus (blood clots in lungs) Myocardial infarction (heart attack) Cerebrovascular accident (stroke) Anaphylaxis (allergic reaction) Stomal stenosis (narrowing of anastomosis) Stomal dilatation (widening of anastomosis) Ulceration Nutritional deficiencies – vitamins, minerals Frequently Asked Questions How long will the surgery take?  90 to 120 minutes. Will it be painful after surgery?  People usually experience some abdominal pain. You will have a range of pain killers charted to relieve the pain. How long will I be in hospital?  Most people spend 3-5 nights in hospital. How long will it take to recover from the surgery?  Usually within 1-2 weeks, but this may vary according to individuals. When can I return to work?  Usually within 1-2 weeks after surgery, depending on your occupation. How soon after surgery can I drive?  When you feel comfortable getting into and out of a car, you should be ok to drive, but check with your insurance company first. What will my diet be like after surgery?  Initially, you will be on a liquid/pureed diet, and then over the ensuing 5-6 weeks, you will progress to a soft diet, lite diet then full diet. Details will be provided to you by the dietician.