Research Topics
| Michael J StamosSummaryAffiliation: University of California Country: USA Publications
| Collaborators
|
Detail Information
Publications
Stapled hemorrhoidectomyMichael J Stamos
Department of Surgery, Division of Colon and Rectal Surgery, University of California, Irvine School of Medicine, California 92868, USA
J Gastrointest Surg 10:627-8. 2006..Attention to the technical details of the operation will limit these deleterious outcomes, and allow stapled hemorrhoidectomy to maintain it's niche role in the treatment of symptomatic hemorrhoids...- Management of early rectal T1 and T2 cancersMichael J Stamos
Division of Colon and Rectal Surgery, Department of Surgery, University of California at Irvine, Orange, CA 92868, USA
Clin Cancer Res 13:6885s-9s. 2007.... 
Outcomes of laparoscopic colorectal surgery: data from the Nationwide Inpatient Sample 2009Celeste Y Kang
Department of Surgery, University of California, Irvine, School of Medicine, Irvine, CA, USA
Am J Surg 204:952-7. 2012..Specific International Classification of Diseases, Ninth Revision, codes for laparoscopic procedures introduced in 2008 allow a more accurate evaluation of laparoscopic colorectal surgery...- Predictive factors of in-hospital mortality in colon and rectal surgeryHossein Masoomi
Department of Surgery, University of California, Irvine School of Medicine, Orange, CA 92868, USA
J Am Coll Surg 215:255-61. 2012..This study endeavors to identify the risk factors for mortality that are associated with colon and rectal surgery... - Does laparoscopic appendectomy impart an advantage over open appendectomy in elderly patients?Hossein Masoomi
Department of Surgery, University of California, Irvine Medical Center, 333 City Blvd West Suite 700, Orange, CA 92868, USA
World J Surg 36:1534-9. 2012..The data comparing laparoscopic (LA) with open appendectomy (OA) in elderly patients are minimal. We evaluated outcomes of LA versus OA in perforated and nonperforated appendicitis in elderly patients (aged ≥ 65 years)... - Strategic laparoscopic surgery for improved cosmesis in general and bariatric surgery: analysis of initial 127 casesNinh T Nguyen
Department of Surgery, University of California Irvine Medical Center, Orange, California 92868, USA
J Laparoendosc Adv Surg Tech A 22:355-61. 2012..The aim of this study was to examine the feasibility and safety of SLIC for general and bariatric surgical operations. Additionally, we compared the outcomes of laparoscopic sleeve gastrectomy with those performed by the SLIC technique... - Laparoscopic colorectal surgery: a better look into the latest trendsCeleste Y Kang
Department of Surgery, University of California, Irvine School of Medicine, Irvine, CA, USA
Arch Surg 147:724-31. 2012..This study evaluates LCRS trends before and after the application of specific codes for LCRS... - Comparison of laparoscopic versus open appendectomy for acute nonperforated and perforated appendicitis in the obese populationHossein Masoomi
Department of Surgery, University of California, Irvine, Medical Center, Orange, CA 92868, USA
Am J Surg 202:733-8; discussion 738-9. 2011..Use of laparoscopic appendectomy (LA) has been increasing in obese patients. We evaluated the outcomes of LA compared with open appendectomy (OA) in obese patients... - Trends in diverticulitis management in the United States from 2002 to 2007Hossein Masoomi
University of California, Irvine, Department of Surgery and Division of Colon and Rectal Surgery, 333 City Blvd West, Ste 850, Orange, CA 92868, USA
Arch Surg 146:400-6. 2011..To demonstrate the recent trends of admission and surgical management for diverticulitis in the United States... - Outcomes of laparoscopic and open appendectomy for acute appendicitis in patients with acquired immunodeficiency syndromeHossein Masoomi
Department of Surgery, University of California, Irvine Medical Center, Orange, California 92868, USA
Am Surg 77:1372-6. 2011..In patients with AIDS, LA has a lower morbidity, lower mortality, and shorter LOS compared with OA. Laparoscopic appendectomy should be considered as a preferred operative option for acute appendicitis in patients with AIDS... - Outcomes of right vs. left colectomy for colon cancerHossein Masoomi
Department of Surgery, University of California, Irvine Medical Center, Orange, CA 92868, USA
J Gastrointest Surg 15:2023-8. 2011.... - Outcomes of right and left colectomy at academic centersMarcelo W Hinojosa
Department of Surgery, University of California Irvine School of Medicine, Irvine, California, USA
Am Surg 73:945-8. 2007..In this analysis of academic centers, RC was associated with a lower length of stay, lower morbidity, and lower cost when compared with LC for benign and malignant disease... - Comparison of outcomes of laparoscopic versus open appendectomy in adults: data from the Nationwide Inpatient Sample (NIS), 2006-2008Hossein Masoomi
Department of Surgery, University of California, Irvine, Medical Center, Orange, CA 92868, USA
J Gastrointest Surg 15:2226-31. 2011..Although laparoscopic appendectomy (LA) is being performed with increased frequency, the utilization of laparoscopy in the management of acute appendicitis remains controversial, and it continues to be used selectively... - Comparison of outcomes of laparoscopic versus open appendectomy in children: data from the Nationwide Inpatient Sample (NIS), 2006-2008Hossein Masoomi
Department of Surgery, University of California, Irvine, Medical Center, 333 City Blvd West, Suite 700, Orange, CA 92868, USA
World J Surg 36:573-8. 2012..The purpose of the present study was to evaluate the outcomes of LA versus OA in perforated and nonperforated appendicitis in children... - Predictive factors of early bowel obstruction in colon and rectal surgery: data from the Nationwide Inpatient Sample, 2006-2008Hossein Masoomi
Department of Surgery, University of California, Irvine School of Medicine, Irvine, CA, USA
J Am Coll Surg 214:831-7. 2012.... - Incidence and risk factors of venous thromboembolism in colorectal surgery: does laparoscopy impart an advantage?Brian Buchberg
University of California Irvine Medical Center, Orange, CA 92868, USA
Arch Surg 146:739-43. 2011..We aimed to compare the incidences and to highlight the risk factors of developing VTE after LC and OC surgery... - Minimally invasive esophagectomy with and without gastric ischemic conditioningNinh T Nguyen
Department of Surgery, University of California Irvine Medical Center, 333 City Bldg West, Suite 850, Orange, CA 92868, USA
Surg Endosc 26:1637-41. 2012..Preoperative gastric ischemic conditioning is a concept aimed at inducing an ischemic insult to the gastric fundus and cardia prior to esophagectomy, thus leading to improvement of gastric perfusion... - Outcomes of laparoscopic versus open colectomy in elective surgery for diverticulitisHossein Masoomi
Department of Surgery, University of California Irvine Medical Center, 333 City Boulevard West, Suite 850, Orange, CA 92868, USA
World J Surg 35:2143-8. 2011..This study was undertaken to evaluate the difference in overall outcomes between elective open and laparoscopic surgery with or without anastomosis for diverticulitis... - Utilization of laparoscopy in colorectal surgery for cancer at academic medical centers: does site of surgery affect rate of laparoscopy?Joseph C Carmichael
Department of Surgery, University of California, Irvine School of Medicine, Irvine, California 92868, USA
Am Surg 77:1300-4. 2011..Further studies are needed to determine the factors limiting the use of laparoscopy in colorectal surgery... - A nationwide analysis of laparoscopy in high-risk colorectal surgery patientsCeleste Y Kang
Department of Colorectal Surgery, University of California, Irvine School of Medicine, 333 City Blvd West Suite 850, Orange, CA 92868, USA
J Gastrointest Surg 17:382-91. 2013..Due to safety concerns, the use of laparoscopy in high-risk colorectal surgery patients has been limited. Small reports have demonstrated the benefit of laparoscopy in this population; however, large comparative studies are lacking... - Analysis of factors predictive of gastrointestinal tract leak in laparoscopic and open gastric bypassHossein Masoomi
Department of Surgery, University of California, Irvine Medical Center, Orange, CA 92868, USA
Arch Surg 146:1048-51. 2011..Patient characteristics and comorbidities, payer type, and operative technique (laparoscopic vs open) predict the risk of gastrointestinal (GI) tract leak in patients with morbid obesity undergoing gastric bypass... - Predictive factors of splenic injury in colorectal surgery: data from the Nationwide Inpatient Sample, 2006-2008Hossein Masoomi
Department of Surgery, University of California, Irvine Medical Center, 333 City Blvd W, Ste 700, Orange, CA 92868, USA
Arch Surg 147:324-9. 2012..To determine frequency of splenic injury and to evaluate predictive risk factors of splenic injury during colorectal surgery... - Robotic-assisted extralevator abdominoperineal resection in the lithotomy position: technique and early outcomesCeleste Y Kang
Department of Surgery, University of California, Irvine, School of Medicine, Irvine, California, USA
Am Surg 78:1033-7. 2012..Robotic-assisted E-APR performed in the lithotomy position is safe and feasible. Future studies are needed to define the benefits of this technique... - Factors affecting the successful management of intra-abdominal abscesses with antibiotics and the need for percutaneous drainageRavin R Kumar
Division of Colon and Rectal Surgery, Harbor UCLA Medical Center, Box 25, 1000 West Carson Street, Torrance, California 90509, USA
Dis Colon Rectum 49:183-9. 2006..This retrospective study evaluated the use of antibiotic therapy and percutaneous image-guided drainage in adult patients with intra-abdominal abscesses... - No visible scar (NVIS) colectomy: a new approach to minimal access surgery to the colonVicrumdeep S Tung
University of California Irvine Medical Center, Orange, CA, USA
Surg Innov 18:79-85. 2011..This study describes NVIS and its ability to provide operative capacity and outcomes similar to other minimal access techniques, but with improved cosmesis and possibly decreased associated complications... - Predictive factors of acute respiratory failure in esophagectomy for esophageal malignancyHossein Masoomi
Department of Surgery, University of California, Irvine, Medical Center, Orange, California 92868, USA
Am Surg 78:1024-8. 2012..Surgeons can use these factors to inform patients of potential risks and should consider these factors during surgical-decision making... - Management of gastrointestinal leaks after minimally invasive esophagectomy: conventional treatments vs. endoscopic stentingNinh T Nguyen
Department of Surgery, University of California Irvine Medical Center, Orange, CA 92868, USA
J Gastrointest Surg 15:1952-60. 2011..The aim of this study was to evaluate the impact of endoluminal stenting in the management of esophagogastric leak after esophagectomy... - Is laparoscopic colon surgery appropriate in patients who have had previous abdominal surgery?Andrew Barleben
Department of Surgery, University of California, Irvine, Orange, California 92868, USA
Am Surg 75:1015-9. 2009..Our experience shows that laparoscopic colorectal surgery in patients with prior intra-abdominal surgery can be completed with an acceptable conversion rate... - Predictive factors of acute renal failure in colon and rectal surgeryHossein Masoomi
Department of Surgery, University of California, Irvine, Medical Center, Orange, California 92868, USA
Am Surg 78:1019-23. 2012..Chronic renal failure, emergent operation, total colectomy and age 65 years or older are potent independent predictors of ARF. In high-risk circumstances, specific care should be taken to prevent renal insults... 
Population-based evaluation of adenosquamous carcinoma of the colon and rectumHossein Masoomi
Division of Colorectal Surgery, Department of Surgery, University of California Irvine, Medical Center, Orange, California, USA
Dis Colon Rectum 55:509-14. 2012..Information about adenosquamous carcinoma of the colon and rectum is scarce because of its extremely low incidence...- A single-port technique for laparoscopic extended stapled appendectomyNinh T Nguyen
Department of Surgery, University of California Irvine Medical Center, Orange, California 92868, USA
Surg Innov 16:78-81. 2009..Significant limitations to this surgical concept include lack of surgical expertise and appropriate flexible instrumentation. An alternative and competing technology to NOTES is single-incision laparoscopic surgery... - Predictive factors of mortality in bariatric surgery: data from the Nationwide Inpatient SampleNinh T Nguyen
Department of Surgery, University of California, Irvine Medical Center, Orange, CA, USA
Surgery 150:347-51. 2011..Understanding predictors of mortality in bariatric surgery enables surgeons to use these factors for analysis of risk-adjusted mortality and aids in the surgical decision making and informed consent process... - Risk factors for postoperative urinary tract infection and urinary retention in patients undergoing surgery for colorectal cancerCeleste Y Kang
Department of Surgery, University of California, Irvine School of Medicine, Irvine, California, USA
Am Surg 78:1100-4. 2012..Knowledge of these specific risk factors for UTI and UR is needed to counsel patients and prevent these complications in this high-risk population... - Does Primary Anastomosis with Diversion Have Any Advantages over Hartmann's Procedure in Acute Diverticulitis?Hossein Masoomi
Department of Surgery, Division of Colorectal Surgery, University of California, Irvine, Medical Center, Orange, Calif, USA
Dig Surg 29:315-20. 2012..Mortality was higher in the HP group (4.82 vs. 3.99%, p = 0.03). Conclusion: PAD has improved outcomes compared with HP, and should be considered in patients who are deemed candidates for two-stage operations for acute diverticulitis... - Evaluation of safety of increased time interval between chemoradiation and resection for rectal cancerCam-Ly Tran
Division of Colon and Rectal Surgery, University of California, Irvine, Medical Center, 101 The City Drive South, Building 55, Suite 110, Irvine, CA, USA
Am J Surg 192:873-7. 2006..CONCLUSIONS: Delaying surgery after neoadjuvant treatment appears safe, with morbidity and mortality similar to that seen with surgery performed less than 8 weeks after chemoradiation... - Laparoscopic surgery is associated with a lower incidence of venous thromboembolism compared with open surgeryNinh T Nguyen
Department of Surgery, University of California, Irvine Medical Center, 333 City Building West, Suite 850, Orange, CA 92868, USA
Ann Surg 246:1021-7. 2007..Although laparoscopy now plays a major role in most general surgical procedures, little is known about the relative risk of venous thromboembolism (VTE) after laparoscopic compared with open procedures... - Comparison of laparoscopic vs open sigmoid colectomy for benign and malignant disease at academic medical centersMarcelo W Hinojosa
Department of Surgery, University of California Irvine Medical Center, Orange, CA, USA
J Gastrointest Surg 11:1423-9; discussion 1429-30. 2007..The shorter length of stay and wound infection rate maintain significance when comparing laparoscopic vs open sigmoid resections for malignant and benign disease... - Selective treatment of rectal cancer with single-stage coloanal or ultralow colorectal anastomosis does not adversely affect morbidity and mortalityAllen P Kong
Division of Colon and Rectal Surgery, University of California, Irvine Medical Center, Irvine, CA, USA
Int J Colorectal Dis 22:897-901. 2007..Many surgeons opt to routinely create a diverting ostomy to reduce the extent of morbidity should an anastomotic leak occur. The intent of our study was to determine if our policy of selected diversion is safe... - The use of a compression device as an alternative to hand-sewn and stapled colorectal anastomoses: is three a crowd?Brian S Buchberg
Department of Surgery, University of California Irvine Medical Center, 333 City Blvd West, Suite 700, Orange, CA 92868, USA
J Gastrointest Surg 15:304-10. 2011..The NiTi CAR™ 27 is a newer device that uses compression to create an anastomosis. An analysis of this device in the creation of colorectal anastomoses in humans has yet to be reported in the USA... - Recent experience with abdominal perineal resection with vertical rectus abdominis myocutaneous flap reconstruction after preoperative pelvic radiationMarcelo W Hinojosa
Department of Surgery, University of California, Irvine Medical Center, Orange, California 92868, USA
Am Surg 75:995-9. 2009..All VRAM flaps remained viable through follow-up. APR with VRAM flap reconstruction after preoperative pelvic radiation can be performed safely with limited wound complications and no mortality... - Diverticulitis: truly minimally invasive managementLuis H Macias
Department of Surgery, Division of Colon and Rectal Surgery, Harbor-UCLA Medical Center, Torrance, California 90509, USA
Am Surg 70:932-5. 2004..Our conservative approach to percutaneous and surgical intervention resulted in relatively low percutaneous drainage, a low operative rate, and a reasonable length of hospitalization and recurrence rate... - Contemporary indications for and early outcomes of abdominoperineal resectionZuri A Murrell
Harbor-UCLA Medical Center, Division of Colon and Rectal Surgery, Torrance, California, USA
Am Surg 71:837-40. 2005..Despite the significant morbidity associated with this surgery, APR may provide beneficial treatment for select cases of low rectal cancer, end-stage inflammatory bowel disease, and anal malignancies... - Mortality risk after preoperative versus postoperative chemotherapy and radiotherapy in lymph node-positive rectal cancerTara E Seery
Chao Family Comprehensive Cancer Center, University of California, Irvine, CA, USA
J Gastrointest Surg 17:374-81. 2013..We quantified mortality risks of persistent pathologic lymph nodes in lymph node-positive rectal cancer patients treated with preoperative versus postoperative chemoradiation... - Outcomes of bariatric surgery performed at accredited vs nonaccredited centersNinh T Nguyen
Department of Surgery, University of California, Irvine Medical Center, Orange, CA 92868, USA
J Am Coll Surg 215:467-74. 2012..The aim of this study was to analyze the perioperative outcomes of bariatric surgery performed at accredited vs nonaccredited centers... - Laparoscopic enucleation or wedge resection of benign gastric pathology: analysis of 44 consecutive casesNinh T Nguyen
Department of Surgery, University of California, Irvine Medical Center, Orange, California 92868, USA
Am Surg 77:1390-4. 2011..3 years. The laparoscopic approaches to local resection of gastric tumors are safe and feasible. The type of minimally invasive surgical approaches should be tailored based on the location and size of the lesion... - Retrocecal appendix location and perforation at presentationGabriel Herscu
University of California Irvine Medical Center, Orange, USA
Am Surg 72:890-3. 2006..Appendix location was not. In this study, we found no significant association between retrocecal appendix anatomy and perforation at presentation... - An assessment of the severity of recurrent appendicitisMatthew R Dixon
Division of Colon and Rectal Surgery, Harbor-UCLA Medical Center, Torrance, CA, USA
Am J Surg 186:718-22; discussion 722. 2003..Elective interval appendectomy may be reserved until a recurrent episode... - Reconstruction of traumatic transposition of the penis and scrotum and associated complex open abdominoperineal pelvic deformity with free innervated tensor fascia latae osteomyocutaneous flapEleonore Zetrenne
Aesthetic and Plastic Surgery, Institute, University of California, Irvine, Orange 92868, USA
Ann Plast Surg 54:657-61. 2005.... - Laparoscopic-assisted colectomy: technique and discussionAllen P Kong
Division of Colon and Rectal Surgery, Department of Surgery, University of California, Irvine, Orange, CA, USA
Surg Technol Int 15:95-101. 2006..The authors contend that laparoscopic colectomy is a suitable, and perhaps preferable, alternative to open procedures for benign or malignant colon disease, with acceptable long-term results... - Postoperative ileus-related morbidity profile in patients treated with alvimopan after bowel resectionBruce G Wolff
Division of Colon and Rectal Surgery, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
J Am Coll Surg 204:609-16. 2007..The effect of alvimopan on POI-related morbidity for patients who underwent bowel resection was evaluated in a post-hoc analysis... - A tale of two (anal fistula) plugs: is there a difference in short-term outcomes?Brian Buchberg
University of California Irvine Medical Center, Orange, California, USA
Am Surg 76:1150-3. 2010..Patients should be cautioned regarding potentially high failure rates; however, longer follow-up and a larger patient population are needed to confirm significant differences in fistula plug efficacy... - Palliative care for colorectal cancerFarin Amersi
Department of Surgery, David Geffen-UCLA School of Medicine, 10833 Le Conte Avenue, 72-215 CHS, Los Angeles, CA 90095, USA
Surg Oncol Clin N Am 13:467-77. 2004..Although resection has been the mainstay of palliative care, an individualized multidisciplinary approach, which may involve both surgical and nonsurgical modalities, is probably the best current option... - Endorectal flap advancement repair is an effective treatment for selected patients with anorectal fistulasMatthew Dixon
Division of Colon and Rectal Surgery, Harbor-UCLA Medical Center, Torrance, California, USA
Am Surg 70:925-7. 2004..Anal advancement flaps demonstrate a reasonable success rate when utilized in this group of patients with challenging anorectal fistulas... - Colonic Crohn's diseaseSteven Mills
Division of Colon and Rectal Surgery, Department of Surgery, University of California, Irvine, Orange, California
Clin Colon Rectal Surg 20:309-13. 2007..The operative choice and conduct depends upon the clinical presentation and intraoperative findings. The extent of resection is controversial, but segmental resection is appropriate in selected cases... - Stapled hemorrhoidectomy: a review of our early experienceMatthew R Dixon
Department of Surgery, Division of Colorectal Surgery, Harbor-UCLA Medical Center, Torrance, California, USA
Am Surg 69:862-5. 2003..Our findings indicate an acceptable complication rate among a group of surgeons beginning to integrate this modality into clinical practice... - Carcinoembryonic antigen and albumin predict survival in patients with advanced colon and rectal cancerMatthew R Dixon
Division of Colon and Rectal Surgery, Harbor-University of California-Los Angeles, USA
Arch Surg 138:962-6. 2003..7 g/dL had a significantly shorter survival time. Conversely, patients with an ALB level greater than or equal to 2.7 g/dL and a CEA level less than 275 ng/mL had a longer survival time... - Strategies for palliative care in advanced colorectal cancerMatthew R Dixon
Department of General Surgery, Harbor-UCLA Medical Center, Torrance, CA, USA
Dig Surg 21:344-51. 2004.... - New approaches to assessing and treating early-stage colon and rectal cancer: summary statement from 2007 Santa Monica ConferenceLee S Rosen
Premiere Oncology, Santa Monica, CA 90404, USA
Clin Cancer Res 13:6853s-6s. 2007.... - Reduction in adhesive small-bowel obstruction by Seprafilm adhesion barrier after intestinal resectionVictor W Fazio
Cleveland Clinic, Cleveland, Ohio, USA
Dis Colon Rectum 49:1-11. 2006..CONCLUSIONS: The overall bowel obstruction rate was unchanged; however, adhesive small-bowel obstruction requiring reoperation was significantly reduced by the use of Seprafilm, which was the only factor that predicted this outcome... - The role of carcinoembryonic antigen as a predictor of the need for preoperative computed tomography in colon cancer patientsAlicia D Holt
Division of Colorectal Surgery, Harbor-UCLA Medical Center, Torrance, California 90509, USA
Am Surg 72:897-901. 2006..We recommend obtaining a preoperative CT scan on those patients with a CEA value twice that of normal or greater... - Focus Group on Laparoscopic Colectomy Education as endorsed by The American Society of Colon and Rectal Surgeons (ASCRS) and The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES)James Fleshman
Department of Colorectal Surgery, Washington University, St. Louis, Missouri, USA
Dis Colon Rectum 49:945-9. 2006 - Focus Group on Laparoscopic Colectomy Education as endorsed by the American Society of Colon and Rectal Surgeons (ASCRS) and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES): guidelines for laparoscopic colectomy courseJames Fleshman
Washington University, St. Louis, Missouri, USA
Surg Endosc 20:1162-7. 2006