Areas of Treatment:

• Colon and Rectal Surgery
• Colon Cancer
• Rectal Cancer
• Anal Cancer
• Primary, Recurrent Cancers, Palliative Setting
• Inflammatory Bowel Disease (Ulcerative Colitis, Crohn's Disease)
• Sphincter-Saving Surgery for Cancer or Inflammatory Bowel Disease
• Transanal Endoscopic Microsurgery for Rectal Polyps and Cancer (TEM)
• Continence Preservation
• Continent Ileostomy (Kock Pouch, T-Pouch)
• Acute Diverticulitis
• Functional Disorders of the Colon and Rectum (Prolapse, Constipation, Pelvic Floor Dysfunction)
• Benign Disorders of the Anus (Hemorrhoids, Anal Fissures, Anorectal Abscess, Colorectal Fistulas, Pilonidal Disease, Pruritus Ani, STDs)
• Laparoscopic surgery
• Transfusion-Free Surgery
• Fecal Incontinence, including Artificial Bowel Sphincter (ABS, Neosphincter)
• Stapled hemorrhoidectomy (PPH)
• Anophysiology Testing (Manometry, EMG, Endorectal Ultrasound, Pudendal Nerve Testing)
• Colonoscopy

Specialties:

• Colorectal Surgery

Title:

• Associate Professor of Clinical Surgery

Department:

• Department of Surgery

Locations:

• Keck Hospital of USC
• USC Norris Comprehensive Cancer Center and Hospital

Background:

Dr. Kaiser graduated from the University of Zurich in Switzerland. After an internship in Surgical Pathology, Dr. Kaiser trained in General Surgery at the University Hospital of Zurich (1990-1998), interrupted by a two year research fellowship at Harvard Medical School. He completed a fellowship in Visceral Surgery at the University Hospital in Zurich, and in Colorectal Surgery at the Keck School of Medicine at USC. In 2001, Dr. Kaiser joined the USC faculty and currently holds the position of associate professor. He is a Fellow of the American College of Surgeons and a member of several national and international professional associations and committees.

Dr. Kaiser has a special interest in colorectal diseases and provides a comprehensive and interdisciplinary treatment in the management of colorectal and anal cancer (primary, recurrent cancers, palliative setting), inflammatory bowel disease, acute diverticulitis, functional disorders of the colon and rectum, and benign disorders of the anus.  He is a national expert/preceptor for the stapled hemorrhoidectomy (PPH) and is responsible for the T-pouch (improved continent ileostomy). He is also one of few surgeons performing the Artificial Bowel Sphincter for fecal incontinence, and most recently added the transanal endoscopic microsurgery for rectal polyps and cancer (TEM) to the services offered at USC.

Dr. Kaiser’s major areas of research interest include Colorectal Cancer, Inflammatory Bowel Disease, Diverticulitis, and Fecal Incontinence.

Dr. Kaiser has written numerous articles, book chapters, including his own book “McGraw-Hill Manual of Colorectal Surgery”. He is associate editor of “Diseases of the Colon and Rectum”, the official journal of the American Society of Colon and Rectal Surgeons, and member of the editorial boards of “Clinical and Experimental Gastroenterology” and “The Open Surgical Oncology Journal."

Education:

• Swiss Federal Diploma as Physician, University of Zurich, 1988
• Doctor of Medicine, University of Zurich, 1989

Internships:

• City of Zurich Hospital Tremli, Pathology, 1989 - 1990

Residencies:

• University Hospital of Zurich, Surgery and Pediatric Surgery, 1990 - 1998

Fellowships:

• Harvard Medical School, Beth Israel Hospital, Surgical Research, 1993 - 1995
• University Hospital of Zurich, Visceral Surgery, 1998 - 2000
• USC Division of Colorectal Surgery Colon and Rectal Surgery, 2000 - 2001

Board Certification:

• EMH Swiss Board Certification in General Surgery
• EBSQ Board Certification in Coloproctology
• FMH Swiss Subspecialty Board Certification in Visceral Surgery

Professional Society Memberships:

• Swiss Medical Association (Foederatio Medicorum Helveticorum FMH)
• American Pancreatic Association
• Massachusetts Medical Society
• Swiss Society for Visceral Surgery
• New York Academy of Sciences
• Swiss Surgical Society
• Association of Invasive and Operative Physicians of Switzerland (Foederatio Medicorum Scrutantium, FMS)
• Society for Surgery of the Alimentary Tract
• American Society of Colon and Rectal Surgeons
• European Association of Coloproctology
• American College of Surgeons
• American Medical Association
• Southern California Society of Colon and Rectal Surgeons
• Society of Laparoendoscopic Surgeons

Languages:

• English
• French
• German
• Italian