Endoscopic retrieval of migrated Foley catheter: A clinical case series.

Use of Foley catheter in patients with ileostomy, for the decompression of large bowel distal to stoma or for the administration of large bowel enema through colostomy, either to treat constipation or for bowel preparation prior to colonoscopy, is a common practice. Accidental migration of catheter during bowel irrigation through stoma can take place if it is not secured externally to the skin. We present 2 such cases with intra-colonic migration of Foley catheter that occurred during bowel irrigation and were retrieved endoscopically. To our knowledge, this is the first case report of endoscopic removal of Foley catheter that migrated internally through the stoma.

The effect of position change and abdominal massage on anxiety, pain and distension after colonoscopy: A randomized clinical trial.

CONTEXT: Pain, abdominal distention, and anxiety are major risk factors encountered after colonoscopy. Complementary and alternative treatments, such as abdominal massage and position change, are used to reduce the associated risk factors. OBJECTIVE: To determine the effect of position change and abdominal massage on anxiety, pain, and distension after colonoscopy. DESIGN: A randomized three-group experimental trial. SETTING AND PARTICIPANTS: This study was conducted with 123 patients who underwent colonoscopy at the endoscopy unit of a hospital located in western Turkey. METHODS: Three groups were formed: two interventional (abdominal massage and position change) and one control, each including 41 patients. Data were gathered using a personal information form, pre- and post-colonoscopy measurement form, the Visual Analog Scale (VAS), and the Spielberger State-Trait Anxiety Inventory. Pain and comfort levels, abdominal circumference values, and vital signs of the patients were measured at four evaluation times. RESULTS: In the abdominal massage group, the VAS pain scores and abdominal circumference measurements decreased the most and the VAS comfort scores increased the most 15 min after the patients were taken to the recovery room (p<0.05). Furthermore, bowel sounds were heard, and bloating was relieved in all patients in both intervention groups 15 min after they were taken to the recovery room. CONCLUSIONS: Abdominal massage and position change can be considered effective interventions for relieving bloating and facilitating flatulence after colonoscopy. Moreover, abdominal massage can be a powerful method for reducing pain and abdominal circumference and increasing patient comfort.

Effects of Hot Pack Therapy on Post-Colonoscopy Pain: A Prospective, Randomized, Controlled Study.

BACKGROUND: Post-colonoscopy pain (PCP) is a negative condition that causes physical and psychological distress to patients and may lead to noncompliance with treatment and follow-up. The most common hypothesis for the cause of PCP is the inflation of the lumen with air to examine the mucosa. There are no previous studies that have examined the effects of thermal therapy in patients with PCP. AIMS: In this study, we aimed to investigate the effects of the Hot Pack (HP) method in patients with PCP. DESIGN: Randomized, controlled, prospective study. METHODS: Patients were randomized 1:1 into 2 groups of HP and control. In the HP group, hot packs of 40-45°C, kept in a hydrocollator heating unit for 30-35 minutes and wrapped in towels, were applied to the umbilical and hypogastric region of patients in the supine position for 30 minutes. Visual analog scale (VAS) scores were used to measure the pain after colonoscopy. Visual analog scores at 1, 6, and 24 hours were recorded and compared in both groups. RESULTS: There was a significant difference in the presence and severity of pain between the two groups at 1 and 6 hours after colonoscopy (p < .001 and p = .004, respectively). There was no significant difference in pain scores at 24 hours between two groups. CONCLUSIONS: This study showed that the application of HP to patients after colonoscopy is effective in reducing pain in the early period.

Frequency of Use and Outcomes of Colonoscopy in Individuals Older Than 75 Years.

Importance: The benefits from colorectal cancer (CRC) screening may take 10 to 15 years to accrue. Therefore, screening is recommended for older adults who are in good health. Objective: To determine the number of screening colonoscopies done in patients older than 75 years with a life expectancy of fewer than 10 years, diagnostic yield, and associated adverse events within 10 days and 30 days of the procedure. Design: This cross-sectional study with a nested cohort between January 2009 and January 2022 in an integrated health system assessed asymptomatic patients older than 75 years who underwent screening colonoscopy in the outpatient setting. Reports with incomplete data, any indication other than screening, patients who had a colonoscopy within the previous 5 years, and patients with a personal history of inflammatory bowel disease or CRC were excluded. Exposures: Life expectancy based on a prediction model from previous literature. Main Outcomes and Measures: The primary outcome was the percentage of screened patients who had limited (<10 years) life expectancy. Other outcomes included colonoscopy findings and adverse events that developed within 10 days and 30 days of the procedure. Results: A total of 7067 patients older than 75 years were included. The median (IQR) age was 78 (77-79) years, 3967 (56%) were women, and 5431 (77%) were White with an average of 2 comorbidities (taken from a select group of comorbidities). The proportion of colonoscopies performed on patients with a life expectancy of fewer than 10 years aged 76 to 80 years was 30% in both sexes and increased with age-82% of men and 61% of women aged 81 to 85 years (71% total), and 100% of patients beyond the age of 85 years. Adverse events requiring hospitalizations were common at 10 days (13.58 per 1000) and increased with age, particularly among patients older than 85 years. The detection of advanced neoplasia varied from 5.4% among patients aged 76 to 80 years to 6.2% in those aged 81 to 85 years and 9.5% among patients older than 85 years (P = .02). Of the total population, 15 patients (0.2%) had invasive adenocarcinoma; among patients with a life expectancy of fewer than 10 years, 1 of 9 was treated, whereas 4 of 6 patients with a life expectancy of greater than or equal to 10 years were treated. Conclusions and Relevance: In this cross-sectional study with a nested cohort, most screening colonoscopies performed in patients older than 75 years were in patients with limited life expectancy and associated with increased risk of complications. Colorectal cancer was exceedingly rare.

Endoscopic fenestration combined with catheterization in the treatment of a giant colonic fecalith causing bowel obstruction: a case report.

Obstruction of the colon caused by a fecalith is not a rare condition, but endoscopic attempts at removal of the fecalith are often unsuccessful because of the size of the fecalith and its extremely hard stone-like consistency. We report a case of bowel obstruction of over two weeks' duration caused by a giant colonic fecalith. Conservative treatments including insertion of a gastric tube and enemas failed to resolve the obstruction. After an initial unsuccessful attempt at fecalith removal by colonoscopy using a snare, we successfully resolved the bowel obstruction over the course of subsequent colonoscopies with endoscopic fenestration of the fecalith and placement of a transrectal gastric tube for directed instillation of the enema fluid, and we were able to avoid surgical intervention in this case.

Creating a Safety Net Process to Improve Colon Cancer Diagnosis in Patients With Rectal Bleeding.

Background Failure to follow up on patients with rectal bleeding is common and may result in a delay in diagnosis of colorectal cancer or in missing high-risk adenomas. The authors' purpose was to create an electronic patient safety net for those diagnosed with rectal bleeding but who did not have colonoscopy to ensure proper detection of colonic abnormalities, including colon cancer. Methods In an integrated health delivery system serving < 4.6 million patients in Southern California, from 2014 to 2019, the authors electronically identified patients with rectal bleeding aged 45 to 80 years but with no recently documented colonoscopy. These cases were reviewed by a gastroenterologist to determine if colonoscopy was appropriate. The physician looked for known documentation as to the cause of rectal bleeding and verified no contraindications to the procedure; if indicated, testing was offered. Results Using the authors' safety net program, 1430 patients with rectal bleeding who needed and completed a colonoscopy were identified. Of those patients, 7.5% had an advanced adenoma or cancer, with a total of 20 cancers, and 34% had findings that warranted more frequent colonoscopy. Conclusions The authors designed a safety net system that was able to capture information on patients with rectal bleeding who had not had a colonoscopy and detected in 34% colonic pathology that would have otherwise gone undetected. The program did not require many resources to implement and had the ability to potentially prevent harm from reaching patients whose rectal bleeding did not get prompt workup. Other health systems and practices should consider implementing a similar system.

Association of Physician Adenoma Detection Rates With Postcolonoscopy Colorectal Cancer.

Importance: Although colonoscopy is frequently performed in the United States, there is limited evidence to support threshold values for physician adenoma detection rate as a quality metric. Objective: To evaluate the association between physician adenoma detection rate values and risks of postcolonoscopy colorectal cancer and related deaths. Design, Setting, and Participants: Retrospective cohort study in 3 large integrated health care systems (Kaiser Permanente Northern California, Kaiser Permanente Southern California, and Kaiser Permanente Washington) with 43 endoscopy centers, 383 eligible physicians, and 735 396 patients aged 50 to 75 years who received a colonoscopy that did not detect cancer (negative colonoscopy) between January 2011 and June 2017, with patient follow-up through December 2017. Exposures: The adenoma detection rate of each patient's physician based on screening examinations in the calendar year prior to the patient's negative colonoscopy. Adenoma detection rate was defined as a continuous variable in statistical analyses and was also dichotomized as at or above vs below the median for descriptive analyses. Main Outcomes and Measures: The primary outcome (postcolonoscopy colorectal cancer) was tumor registry-verified colorectal adenocarcinoma diagnosed at least 6 months after any negative colonoscopy (all indications). The secondary outcomes included death from postcolonoscopy colorectal cancer. Results: Among 735 396 patients who had 852 624 negative colonoscopies, 440 352 (51.6%) were performed on female patients, median patient age was 61.4 years (IQR, 55.5-67.2 years), median follow-up per patient was 3.25 years (IQR, 1.56-5.01 years), and there were 619 postcolonoscopy colorectal cancers and 36 related deaths during more than 2.4 million person-years of follow-up. The patients of physicians with higher adenoma detection rates had significantly lower risks for postcolonoscopy colorectal cancer (hazard ratio [HR], 0.97 per 1% absolute adenoma detection rate increase [95% CI, 0.96-0.98]) and death from postcolonoscopy colorectal cancer (HR, 0.95 per 1% absolute adenoma detection rate increase [95% CI, 0.92-0.99]) across a broad range of adenoma detection rate values, with no interaction by sex (P value for interaction = .18). Compared with adenoma detection rates below the median of 28.3%, detection rates at or above the median were significantly associated with a lower risk of postcolonoscopy colorectal cancer (1.79 vs 3.10 cases per 10 000 person-years; absolute difference in 7-year risk, -12.2 per 10 000 negative colonoscopies [95% CI, -10.3 to -13.4]; HR, 0.61 [95% CI, 0.52-0.73]) and related deaths (0.05 vs 0.22 cases per 10 000 person-years; absolute difference in 7-year risk, -1.2 per 10 000 negative colonoscopies [95%, CI, -0.80 to -1.69]; HR, 0.26 [95% CI, 0.11-0.65]). Conclusions and Relevance: Within 3 large community-based settings, colonoscopies by physicians with higher adenoma detection rates were significantly associated with lower risks of postcolonoscopy colorectal cancer across a broad range of adenoma detection rate values. These findings may help inform recommended targets for colonoscopy quality measures.

Oral IBGard™ Before Colonoscopy: A Single-Center Double-Blinded, Randomized, Placebo-Controlled Trial.

BACKGROUND: Peppermint oil is well known to inhibit smooth muscle contractions, and its topical administration during colonoscopy is reported to reduce colonic spasms. AIMS: We aimed to assess whether oral administration of IBGard™, a sustained-release peppermint oil formulation, before colonoscopy reduces spasms and improves adenoma detection rate (ADR).  METHODS: We performed a single-center randomized, double-blinded, placebo-controlled trial. Patients undergoing screening or surveillance colonoscopies were randomized to receive IBGard™ or placebo. The endoscopist graded spasms during insertion, inspection, and polypectomy. Bowel preparation, procedure time, and time of drug administration were documented. Statistical analysis was performed using the Student's t test and Wilcoxon rank-sum test. RESULTS: There was no significant difference in baseline characteristics or dose-timing distribution between IBGard™ and placebo groups. Similarly, there was no difference in ADR (IBGard™ = 47.8%, placebo = 43.1%, p = 0.51), intubation spasm score (1.23 vs 1.2, p = 0.9), withdrawal spasm score (1.3 vs 1.23, p = 0.72), or polypectomy spasm score (0.52 vs 0.46, p = 0.69). Limiting the analysis to patients who received the drug more than 60 min prior to the start of the procedure did not produce any significant differences in these endpoints. CONCLUSIONS: This randomized controlled trial failed to show benefit of orally administered IBGard™ prior to colonoscopy on the presence of colonic spasms or ADR. Because of its low barrier to widespread adoption, the use of appropriately formulated and timed oral peppermint oil warrants further study to determine its efficacy in reducing colonic spasms and improving colonoscopy quality.

Effects of transcutaneous electrical acupuncture point stimulation on peripheral capillary oxygen saturation in elderly patients undergoing colonoscopy with sedation: a prospective randomized controlled trial.

INTRODUCTION: This study investigated whether transcutaneous electrical acupuncture point stimulation (TEAS) at PC6 can reduce the proportion of elderly patients experiencing a drop of ⩾4% in peripheral capillary oxygen saturation (SpO2) while undergoing colonoscopy under sedation. METHODS: A total of 32 elderly patients (aged ⩾ 65 years) scheduled for colonoscopy were randomly assigned in a 1:1 ratio to receive either real or sham TEAS (treatment or control groups, respectively). Each patient received oxygen (2 L/min) delivered routinely via nasal cannula. The treatment group was given TEAS at PC6 for 20 min at 2 Hz frequency and 6 mA intensity; the control group underwent the same procedures but with zero frequency/intensity. SpO2 and other physiological parameters were measured prior to sedation and colonoscopy (baseline) and at seven other timepoints through departure from recovery. Depth of anesthesia was measured using a Narcotrend monitor. RESULTS: Significantly fewer patients in the treatment group experienced a ⩾4% decrease from baseline SpO2 (2/16) than patients in the control group (10/16; p = 0.004). The two groups were comparable with regard to respiratory rate, systolic and diastolic blood pressures, mean arterial pressure, and heart rate. CONCLUSION: TEAS applied at PC6 with 2 Hz frequency was feasible and may be helpful in reducing the rate of hypoxia in elderly patients during colonoscopy.Trial registration number: NCT03775122 (ClinicalTrials.gov).

Primary placement of a skin-level Cecostomy Tube for Antegrade Colonic Enema Administration Using a Modification of the Laparoscopic-Assisted Percutaneous Endoscopic Cecostomy (LAPEC).

PURPOSE: Children failing medical management for severe constipation and/or fecal incontinence may undergo surgical intervention for antegrade enema administration. We present a modification of the laparoscopic-assisted percutaneous endoscopic cecostomy (LAPEC) procedure that allows primary placement of a skin-level device. METHODS: A single-institution retrospective review was performed from 2009 to 2015. In the modified technique the colonoscope is advanced to the cecum, cecal suspension sutures are placed under laparoscopic visualization, and percutaneous needle puncture of the cecum is performed under direct laparoscopic and endoscopic visualization. A skin-level cecostomy tube is then placed over a guide wire. Patient characteristics and 30-day results were analyzed by Fisher's exact test. RESULTS: Fifty-two patients underwent attempted LAPEC. Successful LAPEC using both laparoscopic and endoscopic guidance was achieved in 46 (88.5%). A MIC-KEY device was placed in 38. Corflo PEG tube placement was necessary in 14 due to high BMI (mean 28.4). Colonoscopy failed to reach the cecum in 6 and laparoscopy alone was utilized to achieve successful tube placement. Cecostomy site infections occurred in 3 (5.8%), only in those undergoing PEG placement using a pull technique (p < 0.05). CONCLUSION: Primary placement of a skin-level device was successful in the majority of patients undergoing cecostomy tube placement for bowel management utilizing antegrade colonic enemas. This technique avoids a second anesthesia for tube conversion. Visualization via colonoscopy with the use of cecal suspension sutures is recommended. High BMI necessitates initial placement of a PEG tube and complications exclusively occurred in this group. TYPE OF STUDY: Clinical. LEVEL OF EVIDENCE: IV Case series study.

Evaluation of pain and patient satisfaction by music therapy in patients with endoscopy/colonoscopy.

BACKGROUND/AIMS: Endoscopy and colonoscopy are frequently performed procedures to evaluate the gastrointestinal system. These procedures are sometimes disturbing and painful for the patient. In gastrointestinal suits, endoscopy and colonoscopy may be performed on awake or sedated patients. Music therapy is a common and non-pharmacological treatment for various medical conditions, pain, and anxiety. The aim of the present study was to add music therapy to sedation administered during endoscopy and colonoscopy. The effect of music treatment on drug consumption, anxiety, and pain was investigated. MATERIALS AND METHODS: American Anesthesiologist Association I-III adult patients scheduled for endo/colonoscopy were randomized to music treatment and no music treatment groups. Patients with endoscopic ultrasound and endoscopic retrograde colangiopancreaticography were excluded from the study. Anxiety score and pain severity were evaluated before and after the procedure. Heart rate, mean arterial pressure, and oxygen saturation were recorded before, during, and after the procedure. Total drug consumption was recorded. Patient satisfaction and desire for the same protocol for recurrent procedures were investigated. RESULTS: Music therapy added to deep sedation administered by anesthesiologists provided decreased anxiety score and propofol consumption. Patient satisfaction was increased, and patients reported a desire for the same protocol for recurrent procedures. CONCLUSION: The present study may serve as the beginning of using music therapy for pain treatment in gastroenterology procedures in our hospital with/without sedation. Music and other non-pharmacological treatment methods must be remembered to increase patient comfort during enco/colonoscopies and other painful procedures.

Endoscopic management of Crohn's strictures.

Symptomatic intestinal strictures develop in more than one third of patients with Crohn's disease (CD) within 10 years of disease onset. Strictures can be inflammatory, fibrotic or mixed and result in a significant decline in quality of life, frequently requiring surgery for palliation of symptoms. Patients under the age of 40 with perianal disease are more likely to suffer from disabling ileocolonic disease thus may have a greater risk for fibrostenotic strictures. Treatment options for fibrostenotic strictures are limited to endoscopic and surgical therapy. Endoscopic balloon dilatation (EBD) appears to be a safe, less invasive and effective alternative modality to replace or defer surgery. Serious complications are rare and occur in less than 3% of procedures. For non-complex strictures without adjacent fistulizaation or perforation that are less than 5 cm in length, EBD should be considered as first-line therapy. The aim of this review is to present the current literature on the endoscopic management of small bowel and colonic strictures in CD, which includes balloon dilatation, adjuvant techniques of intralesional injection of steroids and anti-tumor necrosis factor, and metal stent insertion. Short and long-term outcomes, complications and safety of EBD will be discussed.

Occult Spigelian Hernia Presenting as Inability to Complete Colon Cancer Screening in a Patient with a History of Rectal Cancer.

BACKGROUND While it is well known that abdominal wall hernias can pose obstacles for colonoscopy, these may not be obvious in obese patients, particularly when the hernia is in an unusual place. CASE REPORT A 62-year-old man presented with inability to complete colon cancer screening by means of colonoscopy or barium enema. On exam, he was noted to have a Spigelian hernia present in his left lower quadrant abdominal wall. CT colonography identified incarcerated sigmoid colon within the hernia accounting for his inability to complete colonoscopy or barium enema. Repair of his Spigelian hernia was thus performed, allowing for ease of future colorectal cancer screening. CONCLUSIONS Colorectal cancer screening is an evidence-based benchmark for effective primary care, but is often ordered and interpreted like a blood test, without reference to the technical aspects of the procedure. Failure of colonoscopy requires examination of the patient and consideration of why the procedure failed. In particular, patients in whom colonoscopy fails must be carefully evaluated for occult partially obstructing hernias.

Aromatherapies using Osmanthus fragrans oil and grapefruit oil are effective complementary treatments for anxious patients undergoing colonoscopy: A randomized controlled study.

BACKGROUND AND AIMS: Colonoscopy can be painful and uncomfortable. Aromatherapy is often used for the relief of anxiety or discomfort. Recently, it has been reported that olfactory stimulation induces various physiological effects. We investigated the effects of aromatherapy on anxiety and abdominal discomfort during colonoscopy. METHODS: The investigation was carried out using a randomized controlled study. Aromatherapy was performed by vapor diffusion, and each patient was given one of the following treatments: no inhalation (control group), essential-oil-less vapor (vehicle group), lavender oil (lavender group), grapefruit oil (grapefruit group), or Osmanthus fragrans oil (Osmanthus fragrans group). Following total colonoscopy procedures, each patient estimated their anxiety and abdominal discomfort using the Numeric Rating Scale. RESULTS: Total colonoscopy was performed on 361 patients. No complications caused by colonoscopy or aromatherapy were experienced. In the Osmanthus fragrans group, anxiety was significantly attenuated. The abdominal discomfort of patients who reported strong anxiety during colonoscopy was significantly attenuated in the grapefruit group and the Osmanthus fragrans group. CONCLUSION: Aromatherapies using Osmanthus fragrans oil and grapefruit oil are effective complementary treatments for anxious patients undergoing colonoscopy.

[Analysis of reasons of "incomplete" colonoscopy].

UNLABELLED: The objective of this study was to determine the reasons for incomplete colonoscopy, as well as evaluation of results preparation of patients for colonoscopy in a variety of ways, informative colonoscopy depending on the quality of preparation of the colon for examination. MATERIAL AND METHODS: The material of this study was the results 104 of colonoscopies drawn from daily clinical practice. To prepare the colon for the study used the most available ways: 1) lavage solutions, 2) castor oil, 2 enemas in the morning and 2 in the evening, 3) enema, which the patients were chosen after consulting a doctor. To assess the preparedness of the colon to the study used a Boston-scale of assessment of quality of preparation of the colon for a colonoscopy". Preparation of the colon was improved by using a water jet pump of the company "Olympus" AFU100. Statistical analysis was performed using IBM SPSS Statistics 19.0. RESULTS: Analysis of clinical specimens showed that in 13 (12.5%) of the observations to intubate the colon was not possible. The main reason is the poor preparation of the colon to the study, which failed to improve even with the aid of a water jet pump.

Colonoscopy procedural skills and training for new beginners.

The incidence of colorectal cancer has been increasing in the developed world including South Korea and China. Colonoscopy allows for greater diagnostic specificity and sensitivity compared with other types of examinations, such as the stool occult blood test, barium enema, and computed tomography colonography. Therefore, in recent years, the demand for colonoscopies has grown rapidly. New beginners including primary care physicians may help meet the increasing demand by performing colonoscopies. However, it is a challenge to learn the procedure due to the long learning-curve and the high rate of complications, such as perforation and bleeding, as compared to gastroscopy. Thus, considerable training and experience are required for optimal performance of colonoscopies. In order to perform a complete colonoscopic examination, there were a few important things to learn and remember, such as the position of examinee (e.g., left and right decubitus, supine, and prone) and examiner (two-man method vs one-man standing method vs one-man sitting method), basic skills (e.g., tip deflection , push forward and pull back, torque, air suction and insufflation), advanced skills (e.g., jiggling and shaking, right and left turn shortening, hooking, and slide-by technique), assisting skills (e.g., position change of examinee, abdominal compression, breathing-holding, and liquid-infusion technique), and intubation techniques along the lower gastrointestinal tract. In this article, we attempt to describe the methods of insertion and advancement of the colonoscope to the new beginners including primary care physician. We believe that this article may be helpful to the new beginners who wish to learn the procedure.

The effects of a designer music intervention on patients' anxiety, pain, and experience of colonoscopy: a short report on a pilot study.

There is a controversy on whether listening to music before or during colonoscopy reduces anxiety and pain and improves satisfaction and compliance with the procedure. This study aimed to establish whether specifically designed music significantly affects anxiety, pain, and experience associated with colonoscopy. In this semirandomized controlled study, 34 patients undergoing a colonoscopy were provided with either muted headphones (n = 17) or headphones playing the investigator-selected music (n = 17) for 10 minutes before and during colonoscopy. Anxiety, pain, sedation dose, and overall experience were measured using quantitative measures and scales. Participants' state anxiety decreased over time (P < .001). However, music did not significantly reduce anxiety (P = .441), pain scores (P = .313), or midazolam (P = .327) or fentanyl doses (P = .295). Despite these findings, 100% of the music group indicated that they would want music if they were to repeat the procedure, as compared with only 50% of those in the nonmusic group wanting to wear muted headphones. Although no significant effects of music on pain, anxiety, and sedation were found, a clear preference for music was expressed, therefore warranting further research on this subject.

Surveillance colonoscopy in elderly patients: a retrospective cohort study.

IMPORTANCE: The risks and benefits of surveillance colonoscopy in elderly patients have not been well characterized. OBJECTIVE: To investigate the relative impact of surveillance colonoscopy in elderly patients compared with a reference cohort. DESIGN, SETTING, AND PARTICIPANTS: Retrospective cohort study from 2001 through 2010 of patients 50 years and older undergoing surveillance colonoscopy for a history of colorectal cancer (CRC) or adenomatous polyps at an integrated health care system in southern California. Patients were followed up from the surveillance examination until CRC diagnosis, death, disenrollment, IBD diagnosis, or study end date (December 31, 2010). MAIN OUTCOMES AND MEASURES: The primary outcome measure was incidence of CRC detected following surveillance colonoscopy. The secondary outcome was risk of procedure defined as postprocedure hospitalization within 30 days. Cox regression and multivariable logistic regression analyses were used to determine the impact of age on CRC incidence on surveillance examination as well as postprocedure hospitalization, respectively. RESULTS: The study cohort included 4834 elderly patients (age ≥75 years; 55.8% male) (median surveillance age, 79 years) and 22 929 individuals in the reference group (age 50-74 years; 57.7% male) (median surveillance age, 63 years). A total of 373 cancers were detected following surveillance colonoscopy (368 in the reference group and 5 among the elderly patients). There were a total of 711 postprocedure hospitalizations (184 in the reference group and 527 among the elderly patients). The CRC incidence among elderly patients undergoing surveillance was 0.24 per 1000 person-years vs 3.61 per 1000 person-years in the reference population (P < .001). In Cox regression analysis, the hazard ratio for CRC in the elderly patients compared with the reference group was 0.06 (95% CI, 0.02-0.13) (P < .001) after adjusting for comorbid illness, sex, and race/ethnicity. In logistic regression analysis, age 75 years and older was independently associated with increased risk of postprocedure hospitalization (adjusted odds ratio, 1.28 [95% CI, 1.07-1.53]; P = .006). Charlson score of 2 was also independently associated with increased risk of postprocedure hospitalization (adjusted odds ratio, 2.54 [95% CI, 2.06-3.14]; P < .001). CONCLUSIONS AND RELEVANCE: A low incidence of CRC and relatively high rate of postprocedure hospitalization were found among elderly patients undergoing surveillance colonoscopy. Recommendations for ongoing surveillance in the elderly population should take into consideration the impact of comorbid illness and increasing age on the anticipated risks and benefits of colonoscopy.