Surgical Management of ventral hernias Jerry G Gaston DO FACOS April 2014 Ventral hernias • Epigastric • Umbilical • Spigelian • Lumbar • Littre’s • Richter’s • Amyand’s epigastric • Hernia of the linea albea between the xiphoid and umbilicus • Neurovascular bundles penetrate the linea albea • Weakness of the linea albea • 20% multiple and 80% off the midline • 1.6% to 3.6% of all abdominal wall hernias • 3 times more common in men • Third to fifth decade of life epigastric • Epigastric pain from the compression of the neurovascular bundle by the incarcerated fat • Easily confused with lipomas • Diagnosed with physical exam or in obese patients obtain CT or Ultrasound • High risk of incarceration and pain • Fascia around the defect often thin and weak therefore primary repair not advised unless defect 3 mm in size • Open vs laparoscopic repair Spigelian • Between the lateral edge of the rectus abdominis muscle medially and the semilunar line laterally. • The hernia contents penetrate the transversus abdominis and the internal oblique muscles but remain behind the external oblique aponeurosis • Almost always develop at the arcuate line or below it • Mainly acquired hernias– increased intrabdominal pressure spigelian • .12% - 2.4% of all abdominal wall hernias • Higher incidence in women • Small defect therefore high incidence of incarceration • Difficult to palpate thus CT is often needed for diagnosis • Open vs laparoscopic repair Lumbar • Bounderies of the 12 th rib superiorly, the iliac crest inferiorly, the erector spinae muscles posteriorly, and the posterior border of the external oblique anteriorly • Congenital or acquired • Inferior lumbar triangle Petit’s triangle • Superior lumbar triangle Grynfeltt-Lesshaft triangle • Superior found in 93% cadavers lumbar • Bulge that increases with pressure • 9% present with incarceration • CT for high suspcious • Repair open or laparoscopic in a lateral decubitus position • Large sheet of synthetic mesh as underlay, avoid plugs • Rare so not many studies Ideal “Mesh” • Noncarcinogenic • Chemically inert • Resistant to mechanical strains • Capable of being sterilized • Inert to body and tissue fluids • Capable of limiting foreign body reaction • Amenable to fabrication in necessary form • Unlikely to produce allergy or hypersensitivity reaction • Minimize adhesions • Resistant to infection Shankaran V, et al. A review of available prosthetics for ventral • Respond in vivo like autologous tissue hernia repair Ann Surg, 2011 Permanent and Absorbable Products Permanent Barrier • Dualmesh®, DULEX™ (Gore and BARD) • • 100% ePTFE products COMPOSIX™ LP and VENTRIO™ Products (BARD) • ePTFE barrier Absorbable Barrier • Proceed™ (Ethicon) • • Physiomesh™ (Ethicon) • • • Porcine Collagen / Polyethylene Glycol (PEG) / Glycerol C-Qur™ (Atrium) • • Monocryl™ Parietex™ Composite (Covidien) • • Oxidized Regenerated Cellulose Omega-3 Fatty Acid cross-linked gel SEPRAMESH™ IP Composite (BARD) • Hyaluronic Acid / Carboxymethylcellulose / PEG VENTRALIGHT™ ST Mesh (BARD) • Hyaluronic Acid / Carboxymethylcellulose / PEG Mesh biologic • Human acellular dermis • Alloderm, Allomax, FlexHD Porcine acellular dermis CollaMend*, Permacol*, Strattice, XenMatrix, XCM Porcine intestinal submucosa FortaGen*, Surgisis Mesh biologic Bovine acellular dermis (fetal) SurgiMend, Bovine Pericardium • Peri-Guard, Tutopatch, Veritas How I DO IT 1. Open primary repair 2. Open repair with mesh 3. Laparoscopic repair with mesh How I DO It • Open with primary repair • • • • Thin young woman Reoccurrence No mesh Smaller than a finger tip How I do It • Open with mesh • • • • • • Small defect Larger than fingertip Mesh Wound infection a bit higher Less pain Close defect? HOW I DO IT • Laparoscopic repair with mesh • Close defect? • Primary or incisional • Previous infection • Larger piece of mesh • More pain • Ileus • Longer hospital stay Component separation? Component vs bridge defect Synthetic vs biologic Fixation Device Design: Posterior Side Low profile, thermoplastic polyurethane (TPU) coated nylon balloon Center of proximal ends represent the midline of the mesh Tabs clearly identify the connector locations Logo identifies long axis Removal points marked by arrows 31 Center of proximal ends represent the midline of the mesh conclusion • Mesh decreases reoccurrence • Know previous hernia repair history ie op notes, infection history • Open mind….how to repair …..mesh selection