Dr Delendra Wijayanayaka
Cairns Surgery
About
Cairns Surgery is a Cairns-based bariatric and general surgery clinic led by Dr Delendra Wijayanayaka, offering personalised weight loss surgery with long-term multidisciplinary support and transparent pricing.
Procedures Offered
Also offered
Hospital Affiliations
Cairns Private Hospital
Cairns, QLD - private
About Dr Delendra (Del) Wijayanayaka
Dr Wijayanayaka is a Bariatric and General Surgeon residing full time in Cairns.
- Personalised treatment plans tailored to patients' goals, priorities and health concerns, with lifelong bulk-billed support offered after all bariatric surgical procedures.
- Medical degree from the University of Auckland. RACS General Surgery training program across New Zealand hospitals. High-volume exclusive bariatric surgery fellowship under Dr George Hopkins at the Royal Brisbane and Women's Hospital (2022). Post-fellowship training in advanced upper GI endoscopic techniques at Fiona Stanley Hospital in Perth (2023).
- Fellow of the Royal Australasian College of Surgeons (FRACS)
- Member of the Australian & New Zealand Metabolic and Obesity Surgery Society (ANZMOSS)
- Member of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
- Completed one of Australia's only high-volume exclusive bariatric surgery fellowships
- 11 years in the New Zealand public health system and 2 years in Australian public hospitals before establishing Cairns Surgery in 2024
Procedure Information
Sleeve GastrectomyAround 30% of total body weight, or between 60-70% of excess body weight. Maximum weight loss usually achieved between 12-18 months.▼
Also known as Vertical Sleeve Gastrectomy or Gastric Sleeve, this is the most commonly performed bariatric surgery in Australia. Around 80% of the original stomach is removed, leaving a new smaller stomach with a volume of around 100mL. No surgery is performed on the intestine.
One Anastomosis Gastric BypassAround 35% of total body weight, or between 70-80% of excess body weight. Maximum weight loss usually achieved between 12-18 months.▼
Previously known as mini gastric bypass (MGB), omega loop gastric bypass, or single anastomosis gastric bypass. A small gastric pouch of approximately 60mL is formed using the upper right corner of the stomach, and a loop of small bowel is connected to it with a single anastomosis. The bypassed intestine length is usually between 150 and 200cm.
Roux-en-Y Gastric Bypass▼
A gastric bypass procedure listed as a surgical option, described as having more powerful metabolic effects and being a better option for diabetes and higher weights.
Gastric Band Removal▼
Removal of a previously placed gastric band.
Revisional Bariatric Surgery▼
Second and subsequent bariatric operations for patients who develop issues with their original bariatric procedure. Options include revision sleeve gastrectomy, revision one anastomosis gastric bypass or revision roux-en-y gastric bypass. Carries higher surgical risk compared to equivalent primary bariatric surgery due to scar tissue, altered tissue blood supply and decreased tissue integrity.
Patient Testimonials
“Excellent process from start to finish. No one looks forward to surgery. But it helps when you have a great Doctor and support team to put you at ease. Would highly recommend this practice.”
“I recently had Dr Del as my surgeon , he and his team were amazing. He provided me with all the information I needed to make an informed choice re my options. Dr Del was so approachable , friendly and really put me at ease. I highly recommend his services and thank him and his...”
“Experience has been great. All questions answered. Surgery went well and aftercare has been great.”
“Del is one of the best. Great surgeon who cares for his patients.”
“Dr Del is a fantastic surgeon and also a very friendly, approachable and decent person. He really went above and beyond to ensure my procedures were done to such an high standard and I can't thank him enough. His staff (Katherine) was also very professional and helpful,...”
+ 5 more testimonials on their website
Results
Sleeve gastrectomy: around 30% of total body weight or 60-70% excess body weight. One anastomosis gastric bypass: around 35% of total body weight or 70-80% excess body weight. Weight loss surgery typically results in 30-35% total body weight loss.
Weight Loss Medications help lose 10-15% of bodyweight, while Weight Loss Surgery typically results in 30-35% total body weight loss.
The majority of Weight Loss Surgery patients achieve sustained weight control for many decades.
For patients with insurance cover, bariatric surgery costs the same as 18 months of a popular injectable medication.
One anastomosis gastric bypass: more sustained weight loss compared to sleeve gastrectomy (30% v 25% total body weight loss at 7 years)
One anastomosis gastric bypass has identical weight loss to a Roux-en-Y gastric bypass
Pricing
All fees available on website and formal quotes before every procedure. The site includes a cost calculator for Sleeve Gastrectomy and Gastric Bypass based on insurance status.
Super early release info
Accepts uninsured patients
Support Team
Dietitian
Aftercare
lifetime follow-up (included in fee)
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