Dr Pascal Gervaz

Chirurgien FMH, chirurgie interne & chirurgie viscérale



Dr Gervaz's Publications



Chapters in Text Books

Gunderson L, Haddock M, Gervaz P, Nelson H.
Rectal and anal cancers in conformal radiotherapy planning: selection and delineation of lymph node areas tumors (Chapter 10)
In: Clinical target volumes in conformal and intensity modulated radiation therapy;
Gregoire V, Scalliet P, Ang KK (Eds),
Springer-Verlag, Heidelberg (2004): pp. 187-204


Gervaz P.
Anal cancer.
In: Encyclopedia of Gastroenterology.
Carethers JM, Johnson LR (Eds.)
Academic Press, Harcourt Publishers, New York (2004): pp.76-8


Gervaz P, Wexner SD.
Complicated anorectal sepsis.
In: Holzheimer RG, Mannick JA (Eds).
Surgical treatment-Evidence-Based and Problem-Oriented.
W. Zuckschwerdt Verlag Munchen (2001):pp. 240-246


Full Papers (peer reviewed)



Gonzalez M, Poncet A, Combescure C, Robert J, Ris HB, Gervaz P.
Risk factors for survival after lung metastasectomy in colorectal cancer patients: a systematic review and meta-analysis.
Annals of Surgical Oncology 2012 (in press)

Ambrosetti P, Gervaz P, Fossung-Wieblishauser A.
Left-sided colonic acute diverticulitis: Many questions, few answers.
Colorectal Disease 2012 (in press)

Huttner B, Robicsek A, Gervaz P, Perencevich E, Schiffer E, Schrenzel J, Harbarth S.
Epidemiology of MRSA carriage and MRSA surgical site infections in patients undergoing colorectal surgery: a cohort study in two centers.
Surgical Infections 2012 (in press)

Gervaz P, Platon A, Widmer L, Ambrosetti P, Poletti PA.
A clinico-radiological comparison of sigmoid diverticulitis - Episodes I and II
Colorectal Disease 2012;14:463-8

Gervaz P, Bandiera-Clerc C, Buchs N, Eisenring MC, Troillet N, Perneger T, Harbarth S.
Score for predicting the risk of surgical site infection after colorectal resection.
British Journal of Surgery 2012;99:589-95

Gonzalez M, Ris HB, Krueger T, Gervaz P.
Colorectal cancer and thoracic surgeons: close encounters of the third kind.
Expert Review of Anticancer Therapy 2012;12:495-503

Gonzalez M, Robert JH, Halkic N, Mentha G, Perneger T, Ris HB, Gervaz P.
Survival after lung metastasectomy in colorectal cancer patients with previously resected liver metastases.
World Journal of Surgery 2012;36:386-91

Zilli T, Schick U, Ozsahin M, Gervaz P, Roth AD, Allal AS.
Node negative T1-2 anal cancer: radiotherapy alone or concomitant chemoradiotherapy?
Radiotherapy and Oncology 2012;102:62-7 107.

Back to top



Gervaz P, Calmy A, Durmishi Y, Allal A, Morel P.
Squamous cell carcinoma of the anus: an opportunistic cancer in HIV-positive male homosexuals.
World Journal of Gastroenterology 2011;17:2987-91

Gervaz Pascal, Ambrosetti Patrick.
Time for a (re)definition of (recurrent) sigmoid diverticulitis?
Annals of Surgery 2011;254:1076-7

Gervaz Pascal, Mugnier-Konrad Beatrice, Morel Philippe, Huber Olivier, Inan Ihsan.
Laparoscopic vs. open sigmoid resection for diverticulitis: long-term results of a prospective randomized trial.
Surgical Endoscopy 2011;25:3373-8

Kridel R, Cochet S, Roche B, Bressoud A, Gervaz P, Betz M, Roth AD.
Successful closure of anal cancer-related fistulas with upfront intra-arterial chemotherapy. A report of 8 cases.
Diseases of the Colon and Rectum 2011;54:566-9

Gervaz P.
Anastomotic leak, cystic stump leak and local tumor recurrence: "Unhappy triad" following single port access laparoscopic right colectomy for cancer.
Colorectal Disease 2011;13:1314

Poletti PA, Platon A, De Perrot T, Sarasin F, Andereggen E, Dupuis-Lozeron E, Perneger T, Gervaz P, Becker C.
Acute appendicitis: prospective evaluation of a diagnostic algorithm integrating sonography, low-dose CT and standard CT.
European Radiology 2011;21:2558-66

Back to top



Frossard JL, Gervaz P, Huber O.
Water-immersion sigmoidoscopy to treat acute GI bleeding in the perioperative period after surgical colorectal anastomosis.
Gastrointestinal Endoscopy 2010;71:167-170

Gervaz P, Rubbia-Brandt L, Andres A, Majno P, Roth A, Morel P, Mentha G.
Stage IV colorectal cancer treated with neoadjuvant chemotherapy: a comparison of histological response in liver metastases, primary tumors and regional lymph nodes.
Annals of Surgical Oncology 2010;17:2714-19

Volonte F, Gervaz P, Andereggen E, Poletti PA, Morel P.
Portal vein gas embolism following hydrogen peroxide enema.
Colorectal Disease 2010;12:e335-6

Gervaz P, Inan I, Schiffer E, Perneger T, Morel P.
A prospective randomised single-blind comparison of laparoscopic versus open sigmoid resection for diverticulitis.
Annals of Surgery 2010;252:3-8

Schwenter F, Poletti PA, Platon A, Perneger T, Morel P, Gervaz P.
A clinico-radiological score for predicting the risk of strangulated small bowel obstruction.
British Journal of Surgery 2010;97:1119-25

Schwenter F, Morel P, Gervaz P.
Management of obstructive or perforated colorectal cancer.
Expert Review of Anticancer Therapy 2010;10:1613-19

Platon A, Gervaz P, Becker CD, Morel P, Poletti PA.
Computed tomography of complicated Meckel’s diverticulum in adults: a pictorial review.
Insights into Imaging 2010;1:53-61

Landes U, Robert J, Perneger T, Ott V, Morel P, Mentha G, Gervaz P.
Predicting survival after pulmonary metastasectomy for colorectal cancer: previous liver metastases matter.
BMC Surgery 2010;10:17 98.

Buchs NC, Bucher P, Gervaz P, Ostermann S, Pugin F, Morel P.
Segmental duodenectomy for gastrointestinal stromal tumors of the duodenum.
World Journal of Gastroenterology 2010;16:2788-92

Varnat F, Siegl-Cachedenier I, Malerba M, Gervaz P, Ruiz y Altaba A.
Loss of WNT-TCF addiction and enhancement of HH-GLI signalling define the metastatic transition of human colon carcinomas.
EMBO Molecular Medicine 2010;2:440-57

Back to top



Schwenter F, Gervaz P, McKee T, de Saussure P, Morel P.
Perforated Meckel’s diverticulitis complicating active Crohn’s ileitis.
Journal of Medical Case Reports 2009;3:12

Platon A, Jlassi H, Rutschmann OT, Becker CD, Verdun FR, Gervaz P, Poletti PA.
Evaluation of a low-dose CT protocol with oral contrast for assessment of acute appendicitis.
European Radiology 2009;19:446-54

Skala K, Gervaz P, Buchs N, Inan I, Mugnier-Konrad B, Secic M, Morel P.
Risk factors for morbidity/mortality after emergency/urgent colorectal surgery.
International Journal of Colorectal Disease 2009;24:311-6

Gervaz P, Morel P, Vozenins-Brotons MC.
Molecular aspects of intestinal radiation-induced fibrosis.
Current Molecular Medicine 2009;9:273-80

Buchs NC, Allal AS, Morel P, Gervaz P.
Prevention, chemoradiation, and surgery for anal cancer.
Expert Review of Anticancer Therapy 2009;9:483-9

Gervaz P, Huber O, Morel P.
Surgical management of gastrointestinal stromal tumors.
British Journal of Surgery 2009;96:567-78

Wuthrich P, Gervaz P, Ambrosetti P, Soravia C, Morel P.
Quality of life and functional outcome following proctocolectomy and ileo-anal pouch anastomosis.
Swiss Medical Weekly 2009;139:193-7

Varnat F, Duquet A, Malerba M, Zbinden M, Mas C, Gervaz P, Ruiz y Altaba A.
Human colon cancer epithelial cells harbour active Gli-Hedgehog signalling that is essential for tumour growth, recurrence, metastasis and stem cell survival and expansion.
EMBO Molecular Medicine 2009;1:338-351

Holzer T, Gervaz P, McKee T, Bucher P, Morel P.
Phlegmonous colitis: another source of sepsis in cirrhotic patients?
BMC Gastroenterology 2009;9:94

Back to top



Gervaz P, Morel P.
T0N1 adenocarcinoma of the colon following neo-adjuvant oxaliplatin- based chemotherapy.
Journal of Surgical Oncology 2008;97:94-5

Gervaz P, Bucher P, Morel P, Konrad B, Lataillade L, Beyeler S, Allal AS.
A prospective longitudinal evaluation of quality of life after abdominoperineal resection.
Journal of Surgical Oncology 2008;97:14-9

Nguyen-Tang T, Huber O, Gervaz P, Dumonceau JM.
Long-term quality of life after endoscopic dilation of strictured colorectal or colocolonic anastomoses.
Surgical Endoscopy 2008,22:1660-6

Bucher P, Wuthrich P, Pugin F, Gonzalez M, Gervaz P, Morel P.
Totally intracorporeal laparoscopic colorectal anastomosis using circular stapler.
Surgical Oncology 2008;97:14-9

Andres A, Majno PE, Morel P, Rubbia-Brandt L, Giostra E, Gervaz P, Terraz S, Allal AS, Roth AD, Mentha G.
Improved long-term outcome of surgery for advanced colorectal liver metastases. Reasons and implications for management on the basis of a severity score.
Annals of Surgical Oncology 2008;15:134-43

Buchs N, Gervaz P, Secic M, Bucher P, Mugnier-Konrad B, Morel P.
Incidence, consequences and risk factors for anastomotic dehiscence after colorectal surgery: a prospective monocentric study.
International Journal of Colorectal Disease 2008;23:265-70

Gervaz P, Huber O, Bucher P, Morel P.
Trans-sacral (Kraske) approach for gastrointestinal stromal tumor of the lower rectum: old procedure for a new disease.
Colorectal Disease 2008;10:951-2

Harbarth S, Fankhauser C, Schrenzel J, Christenson J, Gervaz P, Bandiera C, Renzi G, Vernaz N, Sax H, Pittet D.
Universal Screening for Methicillin-Resistant Staphylococcus aureus at Hospital Admission and Nosocomial Infection in Surgical Patients.
JAMA 2008;299:1149-57

Harbarth S, Huttner B, Gervaz P, Fankhauser C, Chraiti MN, Schrenzel J, Licker M, Pittet D.
Risk factors for Methicillin-Resistant Staphylococcus Aureus Surgical Site Infection.
Infection Control and Hospital Epidemiology 2008;29:890-3

Gervaz P, Buchs NC, Morel P.
Diagnosis and management of anal cancer.
Current Gastroenterology Report 2008;10:502-6

Charbonnet P, Gervaz P, Andres A, Bucher P, Konrad B, Morel P.
Results of emergency Hartmann’s operation for perforated or obstructed left-sided colorectal cancer.
World Journal of Surgical Oncology 2008;6:90

Mentha G, Roth AD, Terraz S, Giostra E, Gervaz P, Andres A, Morel P, Rubbia-Brandt L, Majno PE.
"Liver first" approach in the treatment of colorectal cancer with synchronous liver metastases.
Digestive Surgery 2008;25:430-5

Back to top



Beaussier M, El’Ayoubi H, Schiffer E, Rollin M, Parc Y, Mazoit JX, Azizi L, Gervaz P, Rohr S, Biermann C, Lienhart A, Eledjam JJ.
Continuous preperitoneal infusion of ropivacaine provides effective analgesia and accelerates recovery after colorectal surgery. A prospective, randomized, double-blind study.
Anesthesiology 2007;107:461-8

Gonzalez M, Collaud P, Gervaz P, Morel P.
Congenital asplenia (Ivemark syndrome) revealed by mesenteric vein thrombosis in a 77-year-old patient.
Gastroentérologie Clinique et Biologique 2007;31:860-2

Inan I, Gervaz P, Hagen M, Morel P.
Laparoscopic mesh repair of parastomal hernia using a collagen dermal porcine (Permacol) implant.
Diseases of the Colon and Rectum 2007;50:1465 (Multimedia article)

Buchs N, Gervaz P, Bucher P, Konrad B, Morel P.
Lessons learned from one thousand consecutive colonic resections in a teaching hospital.
Swiss Medical Weekly 2007;137:259- 64

Durmishi Y, Gervaz P, Buhler L, Zufferey G, Al-Mazrouei A, Morel P.
Vacuum-assisted abdominal closure: its role in the treatment of complex abdominal and perineal wounds.
Experience in 48 patients. Journal de Chirurgie 2007;144:209-13

Mentha G, Majno P, Terraz S, Rubbia-Brandt L, Gervaz P, Andres A, Allal AS, Morel P, Roth AD.
Treatment strategies for the management of advanced colorectal liver metastases detected synchronously with the primary tumor.
European Journal of Surgical Oncology 2007;33(Suppl. 2):S76-83

Back to top



Bucher P, Gervaz P, Egger JF, Soravia C, Morel P.
Morphologic alterations associated with mechanical bowel preparation.
Diseases of the Colon & Rectum 2006;49:109-12

Jung B, Smith EJ, Doctolero RT, Gervaz P, Alonso JC, Miyai K, Keku T, Sandler RS, Carethers JM.
Influence of target gene mutations on survival, stage and histology in sporadic microsatellite unstable colon cancers.
International Journal of Cancer 2006;118:2509-13

Bucher P, Egger JF, Gervaz P, Ris F, Weintraub D, Villiger P, Buhler LH, Morel Ph.
An audit of surgical management of gastrointestinal stromal tumors (GIST).
European Journal of Surgical Oncology 2006;32:310-14

Gervaz P, Hirschel B, Morel P.
Molecular biology of squamous cell carcinoma of the anus.
British Journal of Surgery 2006;93:531-8

Andereggen E, Ris F, Gervaz P, Bucher P, Morel Ph.
Outcome of surgery for rectal cancer in octogenarians.
Swiss Medical Weekly 2006;136:185-8

Bucher P, Gervaz P, Ris F, Oulhaci W, Inan I, Morel P.
Laparoscopic versus open resection for appendix carcinoid.
Surgical Endoscopy 2006;20:967-70

Durmishi Y, Gervaz P, Brandt D, Bucher P, Platon A, Morel P, Poletti PA.
Results from percutaneous drainage of Hinchey stage II diverticulitis guided by computed tomography scan.
Surgical Endoscopy 2006;20:1129-33

Sermier A, Gervaz P, Allal AS, Roth A, Dao M, Morel Ph.
Lymph node retrieval in abdominoperineal surgical specimen is radiation time-dependent.
World Journal of Surgical Oncology 2006;4:29

Gervaz P, Bucher P, Konrad B, Morel P.
Duration of postoperative ileus after elective colectomy is correlated to surgical specialization.
International Journal of Colorectal Disease 2006;21:542-6

Gervaz P, Lavertu S, Kazemba B, Pemberton J, Haddock M, Gunderson L.
Sphincter-preserving radiation therapy for low rectal cancer; a simulation study using three- dimensional computerized technology.
Colorectal Disease 2006;8:570-4

Brandt D, Gervaz P, Durmishi Y, Platon A, Morel P, Poletti PA.
Percutaneous CT scan- guided drainage vs. antibiotherapy alone for Hinchey II diverticulitis; a case-control study.
Diseases of the Colon & Rectum 2006;49:1533-8

Gonzalez M, Collaud S, Gervaz P, Frossard JL, Morel P.
Surgical treatment of duodenal stenosis in Crohn’s disease.
Annales de Chirurgie 2006;131:636-8

Back to top



Allal AS, Brundler MA, Gervaz P.
Differential expression of anti-apoptotic protein bcl2 in keratinizing vs. non-keratinizing squamous cell carcinoma of the anus.
International Journal of Colorectal Disease 2005;20:161-4

Allal AS, Gervaz P, Gertsch P, Bernier J, Roth A, Morel P, Bieri S.
Assessment of quality of life in patients with rectal cancers treated by preoperative radiotherapy: a longitudinal prospective study.
International Journal of Radiation Oncology Biology and Physics 2005;61:1129-35

Bucher P, Gervaz P, Erné M, Schmid JF, Soravia C, Morel Ph.
Mechanical bowel preparation vs. no preparation for left-sided colorectal surgery: a prospective, randomized trial.
British Journal of Surgery 2005;92:409-14

Gervaz P, Bucher P, Neyroud-Caspar I, Soravia C, Morel Ph.
Proximal location of colorectal adenocarcinoma is a risk factor for metachronous colorectal cancer: a population-based study
Diseases of the Colon & Rectum 2005;48:227-32

Seium Y, Stupp R, Ruhstaller T, Gervaz P, Mentha G, Philippe M, Allal A, Trembleau C, Bauer J, Morant R, Roth AD.
Oxaliplatine combined with irinotecan and 5-fluorouracil/ leucovorin (OCFL) in metastatic colorectal cancer: a phase I-II study
Annals of Oncology 2005;16:762-6

Allal AS, Bieri S, Gervaz P, Soravia C, Gertsch P, Morel Ph, Roth AD.
Pre-operative concomitant hyper fractionated radiotherapy and gemcitabine for locally advanced rectal cancers: a phase I-II trial
Cancer Journal 2005;11:133-9

Bucher P, Gervaz P, Ris F, Oulhaci W, Egger JF, Morel Ph.
Surgical treatment of appendiceal adenocarcinoid (goblet cell carcinoid).
World Journal of Surgery 2005;29:1436-9

Bucher P, Gervaz P, Morel Ph.
Long-term results of radical resection for locally advanced duodenal adenocarcinoma.
Hepatogastroenterology 2005;52:1727-9

Back to top



Da Silva GM, Wexner SD, Gurland B, Gervaz P, Moon S, Efron J, Nogueras JJ, Weiss E, Vernava AM, Zmora O.
Is routine pouchogram prior to ileostomy closure in colonic J- pouch really necessary?
Colorectal Disease 2004;6:117-20

Chun SW, Pikarsky A, You SY, Gervaz P, Efron J, Weiss E, Nogueras J, Wexner SD.
Perineal rectosigmoidectomy for rectal prolapse: role of levatorplasty.
Techniques in Coloproctology 2004;8:3-9

Bucher P, Mathe Z, Bühler L, Chilcott M, Gervaz P, Egger JF, Morel Ph.
Paraganglioma of the ampulla of Vater: A potentially malignant neoplasm.
Scandinavian Journal of Gastroenterology 2004;39:291-5

Da Silva GM, Kaiser R, Borjesson L, Colqhoun P, Lobo F, Khandwala F, Thornton J, Efron J, Vernava AM, Weiss EG, Wexner SD, Gervaz P, Nogueras JJ.
The effect of diverticular disease on the colonic J pouch.
Colorectal Disease 2004;6:171-5

Allal AS, Gervaz P, Brundler MA.
Cyclin D1, Cyclin E, and p21 have no apparent prognostic value in anal carcinomas treated by radiotherapy with or without chemotherapy.
British Journal of Cancer 2004;91:1239-44

Gervaz P, Allal AS, Roth A, Morel P.
Chemotherapeutic options in the management of anal cancer.
Expert Opinion in Pharmacotherapy 2004;5:2479-84

Gervaz P, Bucher P, Morel Ph.
Two colons, two cancers: paradigm shift and clinical implications.
Journal of Surgical Oncology 2004;88:261-6

Gervaz P, Hahnloser D, Wolff B, Cunningham J, Beart R, Klipfel A, Burgart L and Thibodeau S.
Molecular biology of squamous cell carcinoma of the anus: a comparison of HIV positive and HIV negative patients.
Journal of Gastrointestinal Surgery 2004;8:1024-31

Bucher P, Mermillod B, Gervaz P, Morel P.
Mechanical bowel preparation for elective colorectal surgery: a meta-analysis.
Archives of Surgery 2004;139:1359-64

Lauro A, Hamel C, Cirocchi R, Alonso-Poza A, Gervaz P, Doria C, Gruttadauria S, Giustozzi G, Wexner SD.
Laparoscopic treatment for Crohn's disease.
Minerva Chirurgica 2004;59:537-45

Back to top



Saigusa N, Belin B, Choi HJ, Gervaz P, Efron J, Weiss E, Nogueras J, Wexner S.
Recovery of the rectoanal inhibitory reflex after restorative proctocolectomy: Does it correlate with nocturnal incontinence?
Diseases of the Colon & Rectum 2003;46:168-72 27.

Gervaz P, Buhler L, Morel Ph.
A tale of two colons and two cancers: distinct carcinogenesis and clinical outcome according to location proximal or distal to the splenic flexure.
Swiss Surgery 2003;9:3-7

Gervaz P, Pak-art R, Nivatvongs S, Wolff B, Larson D, Riegel S.
Colorectal adenocarcinoma in cirrhotic patients.
Journal of the American College of Surgeons 2003;196:874-9

Da Silva G, Berho M, Wexner SD, Efron J, Weiss EG, Nogueras JJ, Vernava AM, Connor JT, Gervaz P.
Histologic analysis of the irradiated anal sphincter.
Diseases of the Colon & Rectum 2003;46:1492-7

Danzer D, Gervaz P, Platon A, Poletti PA.
Preoperative diagnosis of bleeding Meckel’s diverticulum: a new indication for computed tomography?
Abdominal Imaging 2003;28:631- 3

Gervaz P, Hennig R, Buechler MW, Morel Ph, Bridgstock DR, Soravia C, Egger JF, Friess H.
Long-term expression of fibrogenic cytokines in radiation-induced damage to the internal anal sphincter.
Swiss Surgery 2003;9:193-7

Gervaz P, Allal A, Villiger P, Buhler L, and Morel Ph.
Squamous cell carcinoma of the anus: another sexually transmitted disease.
Swiss Medical Weekly 2003;133:353-9

Back to top



Gervaz P, Cerottini JP, Bouzourene H, Hahnloser D, Doan CL, Chaubert P, Benhattar J, Secic M, Gillet M, Carethers JM.
A comparison of chromosomal instability and microsatellite instability as predictors of survival in T3N0 colorectal cancer patients
Surgery 2002;131:190-7

Giordano P, Renzi A, Efron J, Gervaz P, Weiss EG, Nogueras J, Wexner S.
Does previous sphincter repair affect the outcome of repeat sphincter overlap?
Diseases of the Colon & Rectum 2002;45:635-40

Pikarsky AJ, Gervaz P, Wexner SD.
Perianal Crohn’s disease: a new scoring system to evaluate and predict outcome of surgical intervention.
Archives of Surgery 2002;137:774-7

Gervaz P, Wexner S, Pemberton J.
Pelvic irradiation and anorectal function: introducing the concept of sphincter-preserving radiation therapy.
Journal of the American College of Surgeons 2002;195:387-94

Oikonomakis J, Wexner SD, Gervaz P, You SY, Secic M, Giamundo P.
Seprafilm: A retrospective preliminary evaluation of the impact on short-term oncologic outcome in colorectal cancer.
Diseases of the Colon & Rectum 2002;45:1376-80

Back to top



Gervaz P, Bouzourene H, Cerottini JP, Chaubert P, Benhattar JP, Secic M, Wexner SD, Givel JC. Dukes B
Colorectal Cancer: Distinct Genetic Categories and Clinical Outcome Based on Proximal or Distal Tumor Location
Diseases of the Colon & Rectum 2001;44:364-73

Gervaz P, Rotholtz N, Pisano M, Kaplan E, Secic M, Coucke P, Pikarsky A, Efron J, Weiss E, Wexner S.
Quantitative short term study of anal sphincter function after chemoradiation for rectal cancer
Archives of Surgery 2001;136:192-96

Zmora O, Gervaz P, Wexner SD.
Trocar site recurrence in laparoscopic surgery for colorectal cancer: myth or real concern?
Surgical Endoscopy 2001;15:788-93

Gervaz P, Pikarsky A, Utech M, Secic M, Belin B, Jain A, Efron J, Wexner S.
Converted laparoscopic colectomy: a meta-analysis
Surgical Endoscopy 2001;15:827-32

Gervaz P, Coucke Ph, Gillet M.
Irradiation du petit bassin et fonction ano-rectale: plaidoyer pour une radiothérapie d'épargne sphinctérienne
(Pelvic irradiation and anorectal function: a plea for sphincter-preserving radiation therapy). Gastroentérologie Clinique et Biologique 2001;25:457-62

Gervaz P, Efron J, Poza AA, Chun SW, Pham TT, Woodhouse S, Wexner S, Carethers J.
Loss of heterozygosity and HIV infection in patients with anal squamous cell carcinoma
Diseases of the Colon & Rectum 2001;44:1053-8

Efron JE, Pikarsky A, Gervaz P, Locker G, Weiss EG, Wexner SD, Nogueras JJ.
The efficacy of chemoradiation therapy in HIV seropositive patients with squamous cell carcinoma of the anus
Colorectal Disease 2001;3:402-05

Gervaz P, Rotholtz N, Belin B, You SY, Saigusa N, Secic M, Weiss E, Nogueras J, Wexner S.
Colonic J-pouch function in rectal cancer patients; impact of adjuvant chemo-radiation therapy
Diseases of the Colon & Rectum 2001;44:1667-75

Scholl B, Gervaz P, Martinet O, Ksontini R, Gillet M.
Adenovirus-mediated gene transfer to selected liver segment using a vascular exclusion technique
European Surgical Research 2001;33:348-54

Back to top


2000 and earlier

Bouzourene H, Gervaz P, Cerottini JP, Benhattar JP, Chaubert P, Saraga E, Pampallona S, Bosman FT, Givel JC.
P53 and Ki-ras as prognostic parameters of Dukes’ stage B colorectal cancer
European Journal of Cancer 2000;36:1008-15

Gervaz P, Scholl B, Gillet M.
Permanent access to the portal vein in rats: an experimental model
European Surgical Research 2000;32:203-6

Gervaz P, Blanchard A, Pampallona S, Mach JP, Fontolliet C, Gillet M.
Prognostic values of postoperative carcinoembryonic antigen and extent of invasion of resection margins after hepatic resection for colorectal metastases
European Journal of Surgery 2000;166:557-61

Gervaz P, Scholl B, Mainguene C, Poitry S, Wexner SD, Gillet M.
Angiogenesis of liver metastases: role of sinusoidal endothelial cells
Diseases of the Colon & Rectum 2000;43:980-6

Beck DE, Ferguson MA, Opelka FG, Fleshman JW, Gervaz P, Wexner SD.
Effect of previous surgery on abdominal opening time
Diseases of the Colon & Rectum 2000;43:1749-53

Gervaz P, Scholl B, Padrun V, Gillet M.
Growth inhibition of liver metastases by the anti- angiogenic drug TNP-470
Liver 2000;20:108-13

Gervaz P, Naidu S, McCollum PT.
Splenorenal bypass as an emergency procedure
Vascular Surgery 1998;32:287-90

Gervaz P, Fontolliet C.
Therapeutic applications of the anti-angiogenic drug TNP-470
International Journal of Experimental Pathology 1998; 79:359-62

Holdsworth R, Naidu S, Gervaz P, McCollum PT.
Glutaraldehyde-tanned bovine carotid artery graft for infra-inguinal vascular reconstruction; 5-year follow-up
European Journal of Vascular and Endovascular Surgery 1997;14:208-11

Gervaz P, Naidu S, McCollum PT.
Rupture de l’artère rénale gauche après angioplastie endoluminale
Lyon Chirurgical 1997;23:227-8

Gervaz P, Gavelli A, Zachar D, Huguet C.
Métastase hépatique après exérèse d’un thymome invasif
Gastroentérologie Clinique et Biologique 1997;21:904-5

Back to top



Manuscripts (non-peer reviewed)

Schwenter F, Dominguez S, Meier R, Oulhaci-de Saussure W, Platon A, Gervaz P, Morel P.
Acute small bowel obstruction: Conservative or surgical treatment?
Revue Médicale Suisse 2011;7:1341-7

Gervaz P, Charbonnet P, Morel P.
Management of sigmoid diverticulitis
Revue Medicale Suisse 2009;5:1416-20

Ostermann S, Bucher P, Gervaz P, Morel P.
Really so far from fast-track colorectal surgery in senior patients?
Revue Medicale Suisse 2009;5:1676-9

Gervaz P, Morel P.
Colorectal surgery for the general practitioner.
Swiss Medical Forum 2009;9:372-6

Gervaz P, Wexner SD.
Colorectal cancer; beyond the frontiers.
Swiss Medical Weekly 2000;130:1754-9

Gervaz P, Givel JC.
Tumeurs métastatiques d’origine inconnue: qu’est-il justifié d’entreprendre?
Helvetica Chirurgicae Acta 1993; 60:43-46

Back to top



Manuscripts Submitted

Zilli T, Betz M, Roche B, Gervaz P, Roth AD, Allal AS.
Elective inguinal-node irradiation in early-stage T2N0 anal cancer: Prognostic impact on locoregional control.

Gervaz P, Wexner SD.
Converted laparoscopic colorectal surgery revisited.

Allal AS, Roth AD, Franzetti-Pellanda A, Bonet M, Gervaz P, Bieri S.
Phase I/II study of gefitinib and concomitant preoperative radiotherapy in patients with locally advanced rectal cancer.

Naiken SP, Toso C, Roth A, Rubbia-Brandt L, Mentha G, Morel P, Gervaz P.
Complete pathological response (ypT0N0M0) after preoperative chemotherapy alone for stage IV rectal cancer.

Gervaz P, Platon A, Perneger T, Rocher T, Buchs NC, Poletti PA.
CT scan-based modelization of anastomotic leak risk after colorectal surgery.

Buchs NC, Konrad B, Morel P, Perneger T, Gervaz P.
Natural history of sigmoid diverticulitis: 5-year results of the Geneva prospective monocentric cohort study.

Jung M, Volonte F, Buchs N, Ris F, Gayet MA, Gervaz P, Morel P.
Perirenal fat as a predictor of morbidity following elective colorectal surgery.

Gervaz P, Wolff B.
What we talk about when we talk about sigmoid diverticulitis.

Back to top


Letters to Editors

Gervaz P, Morel P.
Elective sigmoid colectomy for diverticulitis: to operate or not?
Annals of Surgery 2011;254:176-7

Gervaz P.
Author’s reply: Clinicoradiological score for predicting the risk of strangulated small bowel obstruction
British Journal of Surgery 2010;97:1891

Bucher P, Gervaz P, Morel P.
Editorial: Should preoperative mechanical bowel preparation be abandoned?
Annals of Surgery 2007;245:268

Giordano P, Renzi A, Gervaz P.
Prospective evaluation of omentoplasty in preventing leakage of colorectal anastomosis
Diseases of the Colon & Rectum 2001;44:145

Back to top


Press Articles

Gervaz P, Wexner SD.
Time for a (re) definition of (recurrent) sigmoid diverticulitis?
The Surgeons’ Lounge in General Surgery News, May 2012
Mac Mahon Publishing

Les HUG le font attendre 19 jours avec une tumeur
Tribune de Genève, 2/3/2009
Edipresse Publications SA

"Hedgehog pathway may hold key to anti-cancer therapy"
Wiley-Blackwell Press release, 8/27/2009

In patients with liver cirrhosis; New Staging Protocol Suggested for Colorectal Cancer
Gastroenterology & Endoscopy News, 13/12/2003,
McMahon Publishing Group.

Back to top