Focused disciplines, one considered practice.
Each procedure below has its own page with a plain-language explanation of what it involves, when it's indicated, and how Dr Marais approaches it.
Laparoscopic Surgery
Minimally invasive keyhole surgery — smaller incisions, faster recovery.
View Laparoscopic Surgery details →Inguinal Hernia Repair
Groin hernia repair — laparoscopic (TEP/TAPP) and open techniques.
View Inguinal Hernia Repair details →Ventral & Incisional Hernia Repair
Repair of umbilical, epigastric and post-surgical hernias.
View Ventral & Incisional Hernia Repair details →Gallbladder Removal (Laparoscopic Cholecystectomy)
Laparoscopic cholecystectomy for gallstones and biliary disease.
View Gallbladder Removal (Laparoscopic Cholecystectomy) details →Thyroid Surgery (Thyroidectomy)
Hemi- and total thyroidectomy for nodules, goitre and cancer.
View Thyroid Surgery (Thyroidectomy) details →Parathyroid Surgery (Parathyroidectomy)
Focused parathyroidectomy for hyperparathyroidism.
View Parathyroid Surgery (Parathyroidectomy) details →Adrenal Surgery (Laparoscopic Adrenalectomy)
Laparoscopic adrenalectomy for functional and non-functional tumours.
View Adrenal Surgery (Laparoscopic Adrenalectomy) details →Bariatric Surgery (Sleeve Gastrectomy & Gastric Balloon)
Sleeve gastrectomy and gastric balloon for weight and metabolic disease.
View Bariatric Surgery (Sleeve Gastrectomy & Gastric Balloon) details →Dialysis Fistula & Vascular Access
Arteriovenous fistula creation and revision for haemodialysis.
View Dialysis Fistula & Vascular Access details →General Surgical Emergencies
Appendicitis, bowel obstruction, incarcerated hernia and acute abdomen.
View General Surgical Emergencies details →Anti-Reflux Surgery (Laparoscopic Nissen Fundoplication)
Laparoscopic Nissen fundoplication for severe reflux (GORD).
View Anti-Reflux Surgery (Laparoscopic Nissen Fundoplication) details →Hiatal Hernia Repair
Laparoscopic repair of sliding and paraoesophageal hiatal hernias.
View Hiatal Hernia Repair details →Gastroscopy & Colonoscopy
Diagnostic and therapeutic upper and lower GI endoscopy.
View Gastroscopy & Colonoscopy details →Robotic Surgery (da Vinci)
Certified da Vinci robotic surgeon — wristed instruments and 3D HD vision for the most precise minimally invasive surgery.
View Robotic Surgery (da Vinci) details →Colorectal Surgery (Colectomy, Hemicolectomy, Sigmoidectomy, Proctocolectomy)
Robotic and laparoscopic colon and rectal resection for diverticular disease, IBD and colorectal cancer.
View Colorectal Surgery (Colectomy, Hemicolectomy, Sigmoidectomy, Proctocolectomy) details →Rectopexy & Sacrocolpopexy (Pelvic Floor Repair)
Robotic and laparoscopic repair of rectal prolapse and vaginal vault prolapse.
View Rectopexy & Sacrocolpopexy (Pelvic Floor Repair) details →Haemorrhoids & Piles Treatment
Assessment and treatment of piles (haemorrhoids) — banding, injection and surgical options.
View Haemorrhoids & Piles Treatment details →In-rooms procedures under local anaesthesia
Selected minor procedures are done as same-day, walk-in walk-out treatments in Dr Marais's consulting rooms at Johannesburg Surgical Hospital — convenient for patients in Randburg, Weltevredenpark, Northcliff and the surrounding suburbs. These are performed under local anaesthesia (or light sedation for endoscopy), so you recover at home the same day and avoid full hospital admission, theatre and ward fees.
- Gastroscopy & colonoscopy
Diagnostic endoscopy under light sedation for straightforward cases.
- Minor soft-tissue excisions
Sebaceous cysts, lipomas, skin lesions and small lumps under local anaesthesia.
- Ingrown toenail surgery
Wedge resection or nail-bed ablation for recurrent ingrown toenails.
- Small biopsies
Punch or excisional biopsies where a tissue diagnosis is needed.
Suitability is decided at consultation based on your medical history and the complexity of the procedure. More complex or higher-risk cases are booked into the main theatre at Johannesburg Surgical Hospital instead.