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Dive into the research topics where M Bernon is active.

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Featured researches published by M Bernon.


South African Journal of Surgery | 2013

Endoscopic management of bile leaks after laparoscopic cholecystectomy

G E Chinnery; Jake E. Krige; P. C. Bornman; M Bernon; Salem Al-Harethi; Stefan Hofmeyr; Mohamed Asif Banderker; S. Burmeister; Sandie R Thomson

BACKGROUND A bile leak is an infrequent but potentially serious complication after biliary tract surgery. Endoscopic intervention is widely accepted as the treatment of choice. This study assessed the effectiveness of endoscopic retrograde cholangiopancreatography (ERCP), sphincterotomy and biliary stenting in the management of postoperative bile leaks. METHODS An ERCP database in a tertiary referral centre was reviewed retrospectively to identify all patients with bile leaks after laparoscopic cholecystectomy. Patient records and endoscopy reports were reviewed. RESULTS One hundred and thirteen patients (92 women, 21 men; median age 47 years, range 22 - 82 years) with a bile leak were referred for initial endoscopic management at a median of 12 days (range 2 - 104 days) after surgery. Presenting features included intra-abdominal collections with pain in 58 cases (51.3%), abnormal liver function tests (LFTs) in 22 (19.5%), bile leak in 25 (22.1%), and sepsis in 8 (7.1%). Twenty-nine patients (25.7%) were found to have either major bile duct injuries without duct continuity, vascular injuries or other endoscopic findings requiring surgical or radiological intervention. Of 84 patients managed endoscopically, 44 had a cystic duct (CD) leak, 26 a CD leak and common bile duct (CBD) stones, and 14 a CBD injury amenable to endoscopic stenting. Of the 70 patients with CD leaks (group A), 24 underwent sphincterotomy only (including 8 stone extractions), 43 had a sphincterotomy with stent placement (including 18 stone extractions) and 1 had only a stent placed, while 2 patients with previous sphincterotomies required no further intervention. The average number of ERCPs in group A was 2.3 (range 1 - 7). Of the 14 patients with bile duct injuries treated endoscopically (group B), 7 had a class D, 5 an E5 and 2 a class B injury; 13 patients underwent sphincterotomy and stenting, and 1 had a sphincterotomy only. Group B required an average of 3.6 ERCPs (range 2 - 5). The 113 patients underwent a total of 269 ERCPs (mean 2.4, range 1 - 7). Seven patients had one or more complications related to the ERCP: 3 acute pancreatitis, 2 cholangitis, 2 sphincterotomy bleeds, 1 duodenal perforation and 1 impacted Dormia basket, the latter 2 requiring operative intervention. CONCLUSIONS Three-quarters of bile leaks after laparoscopic cholecystectomy were due to CD leaks (with or without retained stones) or lesser bile duct injuries and were amenable to definitive endoscopic therapy. Nineteen patients (16.8%) had major injuries that required operative intervention.


South African Journal of Surgery | 2014

Single-stage definitive surgical treatment for portal biliopathy

M Bernon; Mark W Sonderup; G E Chinnery; Philippus C. Bornman; Jake E. Krige

The term portal biliopathy (PB) is used to describe the biliary abnormalities associated with portal hypertension. Between 5% and 30% of patients with PB develop biliary obstruction. We report on a patient with extrahepatic biliary obstruction caused by PB that was successfully managed with an intrahepatic segment 3 bypass. The traditional surgical approach for a patient with extrahepatic biliary obstruction caused by PB would be a portosystemic shunt followed by a hepaticojejenostomy if the jaundice persited. An intrahepatic segment 3 bypass provides definitive treatment ensuring biliary decompression and stone removal in a single procedure in appropriately selected patients.


South African Journal of Surgery | 2013

The rise and fall of CA 19-9.

M Bernon; Sandie R Thomson; Eduard Jonas

Tumour markers abound in the field of gastroenterology. One of the most ubiquitous is carbohydrate antigen 19-9 (CA 19-9), which was first described by Koprowski et al. in 1979 as an abnormal glycoprotein, expressed on the surface of colorectal cell lines. Also referred to as sialyl Lewis-a CA 19-9, it is formed as a result of an aberrant pathway during production of its normal counterpart disialyl Lewis-a. The latter is a glycoprotein predominantly expressed in non-malignant epithelial cells. The abnormal form can be measured in serum by a specific monoclonal antibody. Ten per cent of the white population lack the Lewis blood group antigen and are unable to produce CA 19-9, even in the presence of malignant disease.


South African Medical Journal | 2012

Outcome in decompensated alcoholic cirrhotic patients with acute variceal bleeding

Jake E. Krige; U.K. Kotze; Rauf Sayed; S. Burmeister; M Bernon; G E Chinnery

BACKGROUND Variceal bleeding (VB) is the leading cause of death in cirrhotic patients with oesophageal varices. We evaluated the efficacy of emergency endoscopic intervention in controlling acute variceal bleeding and preventing rebleeding and death during the index hospital admission in a large cohort of consecutively treated alcoholic cirrhotic patients after a first variceal bleed. METHODS From January 1984 to August 2011, 448 alcoholic cirrhotic patients (349 men, 99 women; median age 50 years) with VB underwent endoscopic treatments (556 emergency, 249 elective) during the index hospital admission. Endoscopic control of initial bleeding, variceal rebleeding and survival after the first hospital admission were recorded. RESULTS Endoscopic intervention alone controlled VB in 394 patients (87.9%); 54 also required balloon tamponade. Within 24 hours 15 patients rebled; after 24 hours 61 (17%, n=76) rebled; and 93 (20.8%) died in hospital. No Child-Pugh (C-P) grade A patients died, while 16 grade B and 77 grade C patients died. Mortality increased exponentially as the C-P score increased, reaching 80% when the C-P score exceeded 13. CONCLUSION Despite initial control of variceal haemorrhage, 1 in 6 patients (17%) rebled during the first hospital admission. Survival (79.2%) was influenced by the severity of liver failure, with most deaths occurring in C-P grade C patients.


South African Journal of Surgery | 2018

Breast cancer and HIV

Jacobus Christo Kloppers; Jake E. Krige; M Bernon; S. Burmeister; Eduard Jonas; Sandie R Thomson; Philippus P Bornman

BACKGROUND Biliary mucinous cystic neoplasms (BMCNs) are uncommon neoplastic septated intrahepatic cysts which are often incorrectly diagnosed and have the potential for malignant transformation. OBJECTIVE To assess the outcome of surgical resection of BMCNs. METHOD A prospective liver surgery database was used to identify patients who underwent surgery at Groote Schuur Hospital Complex for BMCN from 1999 to 2015. Demographic variables including age and gender were documented as well as detailed preoperative imaging, location and size, operative treatment, extent of resection, histology, postoperative complications and outcome. RESULTS Thirteen female patients (median age 45 years) had surgery. Eleven were diagnosed by imaging for symptoms. Two were jaundiced. One cyst was found during an elective cholecystectomy. Five cysts were located centrally in the liver. Before referral three cysts were treated with percutaneous drainage and two were treated with operative deroofing. Six patients had anatomical liver resections and seven patients had non anatomical liver resections of which two needed ablation of residual cyst wall. One patient needed a biliary-enteric reconstruction to treat a fistula. Median operative time was 183 minutes (range: 130-375). No invasive carcinoma was found. There was no operative mortality. One surgical site infection and one intra-abdominal collection were treated. Two patients developed recurrent BMCN after 24 months. CONCLUSION BMCNs should be considered in middle aged women who have well encapsulated multilocular liver cysts. Treatment of large central BMCNs adjacent to vascular and biliary structures may require technically complex liver resections and are best managed in a specialised hepato-pancreatico-biliary unit.


South African Journal of Surgery | 2013

Gastric heterotopia causing jejunal ulceration and obstruction

G E Chinnery; M Bernon; M A Banderker; R Roberts; J. E. J. Krige

A young woman with persistent postprandial vomiting was found to have a high-grade proximal jejunal stricture. The stricture was surgically excised, and histopathological examination showed gastric heterotopia with localised ulceration and fibrosis. Symptomatic gastric heterotopia in the small bowel is rare, and to our knowledge this is the first report of jejunal gastric heterotopia resulting in ulceration with subsequent stricturing and obstruction.


South African Journal of Surgery | 2012

Beware the left-sided gallbladder

S. Alharthi; M Bernon; J. E. J. Krige


South African Journal of Surgery | 2011

Endoscopic stenting of a high-output traumatic duodenal fistula

G E Chinnery; M Bernon; A Grotte; J Ej Krige


South African Journal of Surgery | 2017

HEPATOBILIARY FACTORS INFLUENCING MORBIDITY RATES AFTER PANCREATIC STAB WOUNDS.

H L Bookholane; J. E. J. Krige; Eduard Jonas; U.K. Kotze; M Bernon; S. Burmeister; Pradeep H. Navsaria; A. Nicol


South African Journal of Surgery | 2018

Distal malignant biliary obstruction: a prospective randomised trial comparing plastic and uncovered self-expanding metal stents in the palliation of symptomatic jaundice

M Bernon; J Shaw; S. Burmeister; G E Chinnery; Stefan Hofmeyr; J.C. Kloppers; Eduard Jonas; J. E. J. Krige

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Eduard Jonas

University of Cape Town

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G E Chinnery

University of Cape Town

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U.K. Kotze

University of Cape Town

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