Perianal Mucinous Adenocarcinoma Found Incidentally From Perianal Mass.

Anal mucinous adenocarcinomas are very rare and usually arise from anal fistulas. We report a case of a 73-year-old man with a past medical history of hypertension admitted to our facility for evaluation of bleeding from a large, tender, left gluteal perianal mass. The patient reported the mass had been growing for over six years. On examination, an ulcerated, fungating large exophytic lesion was found extending from the anal verge laterally engulfing the left gluteus. The patient was anemic with low hemoglobin and hematocrit, as well as an elevated carcinoembryonic antigen level. A colonoscopy was performed during which an internal opening of a left-sided anal fistula was identified. The mass was biopsied and returned positive for a mucinous adenocarcinoma. Staging imaging including a computed tomography scan of the chest abdomen and pelvis did not show any metastatic disease. A magnetic resonance image of the pelvis revealed a locally invasive, heterogeneous tumor extending from the perianal soft tissue to the posterior wall of the anal canal and lower rectum. The patient was discussed at the interdisciplinary tumor board and completed five weeks of concurrent chemotherapy and radiation with 5-fluorouracil and a total of 28 fractions of radiation. He then underwent abdominoperineal resection with a vertical rectus abdominis myocutaneous flap. The patient was placed in the surgical intensive care unit and subsequently discharged in stable condition on postoperative day 14. This case highlights the presentation, diagnosis, and management of anal mucinous adenocarcinoma.

Incarcerated native orthotopic kidney through an inguinal hernia: a case report and literature review.

This is a case report of a 66-year-old male with an incarcerated inguinal hernia that contained native orthotopic kidney causing obstructive uropathy. The patient presented to the hospital due to intractable right groin pain, and CT imaging showed herniation of the right kidney in the right inguinal hernia with the upper pole squeezed in the inguinal canal. The patient underwent surgery to reduce the hernia contents and hernia repair with mesh. He was discharged on postoperative day 3 without complication. To the best of our knowledge, this is the first reported case of an incarcerated native orthotopic kidney without anatomic abnormality that had to undergo surgical intervention.

5-year follow-up at an accredited community bariatric practice: what is an acceptable follow-up rate?

BACKGROUND: Adequate long-term follow-up after metabolic and bariatric surgery (MBS) remains a challenge. OBJECTIVES: To evaluate if type of insurance correlated with differences in the 5-year follow-up and outcomes of a cohort of bariatric surgery patients in a community-based accredited center. SETTING: Accredited private practice bariatric center in the United States. METHODS: We studied bariatric surgery patients that underwent MBS in 2015 by a single surgeon in an accredited, community practice. Electronic medical records were utilized to evaluate 5-year follow-up and outcomes data. This included demographics, type of insurance, number of follow-up visits, height, weight, body mass index (BMI), postbariatric procedures, and postbariatric emergency department (ED) utilization. RESULTS: There were 89 patients. The follow-up rate decreased over time, with 1% of patients at 5 years. There was a slightly higher follow-up rate in patients with commercial versus public insurance. The average BMI of patients that followed up decreased by 13.6 kg/m2 over the first postoperative year. The average number of ED visits was 1.46 (standard deviation: 2.38) overall; however, of the 89 total patients, 35 patients (39.3%) had no documented ED visits, with the remaining 61 patients (63.5%) ranging from 1-15 visits (median = 1). CONCLUSION: Overall follow-up rates were low with 4-year follow-up being 14% and 5-year follow-up being <1%. Publicly insured patients had a higher rate of follow-up. Despite low follow-up rates with the actual bariatric surgery practice, 63.5% of patients had an ED visit during the follow-up period.

Trends in bariatric surgery in Texas: an analysis of a statewide administrative database 2013-2017.

BACKGROUND: The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) tracks 30-day outcomes of bariatric patients, but only at accredited centers. Presently, these cases are not broken down by state. Administrative databases can be used to answer some of the questions that are not asked by clinical databases and also to validate those databases. We proposed using the inpatient and outpatient administrative databases in Texas to examine both the numbers and trends of bariatric surgery in Texas over a 5-year period. METHODS: The Texas Inpatient Public Use Data File (IPUDF) and the Texas Outpatient Public Data File (OPUDF) were examined for the years 2013-2017. We searched for patients undergoing laparoscopic adjustable gastric banding (LAGB), sleeve gastrectomy (SG), laparoscopic Roux-en-Y gastric bypass (LRYGB) and duodenal switch. Robotic assisted cases were also examined. RESULTS: There were 105,199 bariatric cases performed in Texas from 2013 to 2017. There were 173 centers performing bariatric surgery. The most common operation performed was the sleeve gastrectomy at 73,663 case (70% of total). Gastric bypasses were second at 22,890 cases. During this time period, LAGB almost disappeared; dropping from 2090 cases in 2013 to 115 cases in 2017, with removal of 2097 LAGB in the study period in the OPUDF. During this time period, there was a lower growth rate of the number of SG in the IPUDF with a large increase in SG performed with outpatient status, while LRYGB remained relatively stable. CONCLUSION: Rates of bariatric surgery in Texas are increasing slowly. The dominant procedure is the SG with a trend towards being done under outpatient status. LAGB has been essentially phased out. There is an increase in SG being performed under 'outpatient' status.

Magnetic sphincter augmentation at the time of bariatric surgery: an analysis of the MBSAQIP.

BACKGROUND: Magnetic sphincter augmentation (MSA) has gained popularity as a treatment for gastroesophageal reflux disease (GERD). The role of MSA in treating GERD in metabolic and bariatric surgery (MBS) patients at the time of primary MBS is unknown. OBJECTIVE: To determine the short-term outcomes of MSA placed at the time of MBS. SETTING: National database, United States. METHODS: We queried the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database for MSA performed at time of the sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) for the years 2017-2018. A propensity adjusted analysis was performed to assess 30-day outcomes of patients who had MSA placed versus those who did not. RESULTS: There were 319,580 patients who underwent MBS in the study period. Twenty-four patients had MSA at time of surgery. These patients did not have a higher reported rate of preoperative GERD (P = .93). Six patients (25%) with MSA had a RYGB; the other 18 patients (75%) patients had SG (P < .001). Operative times were similar between the groups and there was no difference in length of stay. After propensity matched analysis (with 24 patients in each arm), patients who underwent an MSA had shorter discharge times (1.4 days [.8] versus 2.0 [.9], P = .012). CONCLUSION: MSA is safe in the short term in MBS. There is no difference in major morbidity or mortality and operative times are similar in MSA patients. The long-term efficacy of this practice is unknown.

The MBSAQIP is going viral! 194 hits and still going strong.

BACKGROUND: The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) first released its Participant Use Data File in 2015. Since then, surgeons have eagerly evaluated data now available on >750,000 patients, and a yearly increase in the number of publications using the Participant Use File was anticipated. OBJECTIVE: To evaluate the impact of the MBSAQIP in surgical literature. SETTING: University surgical department, United States. METHODS: A literature search was performed to identify articles published using the MBSAQIP database up to March 2019. PubMed, Clinical Key (both indexed for MEDLINE), and Cochrane databases were queried using the keywords "MBSAQIP" and "Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program." Abstracts presented at ObesityWeek, SAGES, and the Clinical Congress of the ACS in 2016 to 2019 were also examined. Duplicates, letters to the editor, commentaries, statements, and position pieces were excluded. Articles describing projects that used MBSAQIP data to study <5 accredited centers were also excluded. RESULTS: As of March 2019, there were 114 results in PubMed, 216 results in Clinical Key, and 0 in Cochrane using the search terms. Additionally, 184 abstracts were included from the journal supplements from ObesityWeek, SAGES, and the Clinical Congress of the ACS. After elimination of duplicates, there were 327 total results. After exclusions, 55 published manuscripts and 126 abstracts remained. CONCLUSION: The MBSAQIP is a resounding success. A substantial body of research has already been produced from it and is growing with time. Gaps in current knowledge are being targeted through analyses of this single, large-scale database. The MBSAQIP will remain a valuable leading resource in metabolic and bariatric surgery.

Disparities in Access to Bariatric Surgery in Texas 2013-2017.

BACKGROUND: Access to bariatric care varies across regions, ethnic, and racial groups. Some of these variations may be due to insurance status or socioeconomic status. There are also regional and state variations in access to metabolic and bariatric surgery (MBS). The Texas Inpatient Public Use Data File (IPUDF) and Texas Outpatient Public Use Data File is a state-mandated database that collects information on demographics, procedures, diagnoses, and cost on almost all admissions in Texas. We used them to examine racial disparities in MBS over a 5-y period. METHODS: The IPUDF and Texas Outpatient Public Use Data File were examined from the years 2013 through, 2017. We included all patients undergoing a laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy and examined the demographics of these patients. Race and ethnicity are reported separately. We used U.S. Census Bureau statistics and the Texas Department of State Health Services statistics to determine the crude (unadjusted) and adjusted procedure rates of patients undergoing MBS. RESULTS: In the IUPUDF, the crude unadjusted procedure rate for blacks undergoing MBS was 7.29 per 10,000 population followed by 6.85 per 10,000 for non-Hispanic whites. Hispanics had the lowest rate at 3.20 per 10,000. When adjusted for sex, obesity, age, and race, blacks still had a higher rate of access followed by whites and then Hispanics. CONCLUSIONS: There are disparities to access for bariatric surgery in Texas. Blacks have the greatest access followed by whites. Hispanics have the lowest procedure rate per population.

Trends in revisional bariatric surgery using the MBSAQIP database 2015-2017.

BACKGROUND: The third most common bariatric surgery is revisional bariatric surgery. The American College of Surgeons tracks outcomes using the Metabolic and Bariatric Surgery Accreditation Quality Initiative Program database. We used this database to examine trends in revisional bariatric surgery. OBJECTIVE: To evaluate how trends in bariatric revisional surgery have changed in recent years. SETTING: University Hospital, United States. METHODS: The Metabolic and Bariatric Surgery Accreditation Quality Initiative Program database for 2015 to 2017 was examined for revisions of bariatric surgery. Patients who underwent revisional bariatric surgery were identified by the primary Current Procedural Terminology code, the REVCONV and PREVIOUS_SURGERY field as well as secondary Current Procedural Terminology codes. There is no exact code for sleeve gastrectomy (SG) to laparoscopic Roux-en-Y gastric bypass (LRYGB), so we used 43644 (GB)+REVCONV+PREVIOUS_SURGERY for this. RESULTS: For the years 2015 to 2017 there were 57,683 revisions/conversions of 528,081 patients. The number of revisions increased over the study period by 5213 cases. The most common revision was laparoscopic adjustable gastric band (LAGB) to SG with 15,433 cases and the second was LAGB to LRYGB with 10,485 cases. There were 14,715 LAGB removals. It is more difficult to track SG to LRYGB but there were 8491 unlisted cases, which may have been sleeve to bypass. CONCLUSION: LAGBs are being taken out or converted, and this group makes up the largest portion of revisions and conversions. It is difficult to track SG to LRYGB, but the number of unlisted cases continues to climb. This will likely surpass LAGB conversions with time. The Metabolic and Bariatric Surgery Accreditation Quality Initiative Program should be modified to capture revisions/conversions of SG.

How many sleeve gastrectomies are done at nonaccredited centers in Texas?

BACKGROUND: The American College of Surgeons created the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) to improve the safety of surgery and track outcomes of patients undergoing metabolic and bariatric surgery. The MBSAQIP captures all surgical procedures performed at accredited centers (AC) but not all metabolic and bariatric surgery cases performed in the United States. Texas has a large statewide administrative database that tracks nearly all surgical procedures performed in the state and we proposed using this database to assess the number of sleeve gastrectomies (SG) and whether they were performed at an AC or not. OBJECTIVE: Our objective was to determine the percentage of SG that are performed in MBSAQIP ACs. SETTING: University surgical department, United States. METHODS: The Texas Inpatient and Outpatient Public Use Data Files (PUDF) for the year 2017 were examined. We used the Current Procedural Terminology and International Classification of Diseases version 10 codes for SG, 43775 and 0 DB64 Z3, respectively. We compared the PUDF facility list to a list of MBSAQIP ACs in Texas. RESULTS: There were 4549 SG performed in Texas in 2017 reported in the Outpatient PUDF. Of these, 80.8% of cases were performed at ACs. Of the 136 facilities in the outpatient PUDF performing SG, 58 were MBSAQIP accredited. In the Inpatient PUDF for 2017 there were 11,287 SG, of which 9829 (87%) were performed at ACs. Of 153 centers performing SG, 77 were MBSAQIP accredited. There was a higher percentage of adjustable band conversions to SG at non-ACs in the Outpatient PUDF than the Inpatient PUDF. CONCLUSION: The MBSAQIP database is missing almost 20% of outpatient SG performed in Texas and 13% of inpatient SG. Administrative databases can be used to externally validate the MBSAQIP.

Late-term hiatal hernia after gastric bypass: an emerging problem.

BACKGROUND: Gastric bypasses were the most common bariatric surgery for many years, and long-term complications after gastric bypass are known to be relatively common. Symptomatic hiatal hernia (HH) with pouch migration is a less-known complication. However, when these are symptomatic, they require surgical repair. OBJECTIVE: We present a case series of late-term HH after gastric bypass and discuss the common presentation and treatment. SETTING: University program in the United States. METHODS: A retrospective chart review was performed of patients presenting with late-term HH after gastric bypass performed by a single surgeon during 2002 through 2018. The review captured presentation and symptoms, age, body mass index, time from index surgery, radiologic studies, and the reoperative details. If available, the original operative note was reviewed along with any preoperative imaging studies. A review of the literature was also performed. RESULTS: Seven patients were included in the case series. The average time from the index surgery was 11.9 years (range 9-16) and the average age of the patient at time of presentation was 60.1. The average body mass index at the time of the HH repair was 34 kg/m2. The most common presenting symptom was gastroesophageal reflux. Both computed tomography and upper gastrointestinal series were used for diagnosis with a common finding of HH and pouch migration into the mediastinum. HH repair with bioabsorbable mesh was performed in all patients, with an average operative time of 105 minutes. CONCLUSION: HH can present late after gastric bypass become symptomatic. When symptomatic, it needs to be addressed surgically and can usually be done through a minimally invasive approach.

New Onset Cardiac Arrhythmias after Metabolic and Bariatric Surgery.

BACKGROUND: Metabolic and bariatric surgery (MBS) has been shown to improve medical problems; however, there are known arrhythmias that can occur after MBS (i.e., sick sinus syndrome [SSS] and sinus bradyarrhythmias). While the literature in this area contains case reports, there is a lack of published data on a state or national level. We used a large state administrative database to evaluate the occurrence of cardiac arrhythmias after MBS. METHODS: We studied the years 2016 to 2018 using the Texas Inpatient Public Use Data File. Inclusion criteria were patients who had a pacemaker installed and were ≥ 18 years. Quantitative variables were described using mean and standard deviation. Categorical variables were described using frequency and proportion. The student's t-test and chi-squared test were used to assess the differences across pacemaker installation. RESULTS: There were a total of 79,807 (10.2%) who had a history of MBS and 31,072 (4%) patients who underwent pacemaker insertion, respectively. After excluding all patients < 18 years, the prevalence of pacemakers installed in patients with prior bariatric surgery was 0.8% (n = 257/30,823) or about 8 in every 1000 patients. Of note, bariatric patients who had a pacemaker placed were younger than non-bariatric patients (P < 0.001). The most common reason for pacemaker placement was SSS (51.5%), followed by atrioventricular block (13.1%), and then bradycardia at 8.5%. The most common arrhythmia overall was bradycardia. CONCLUSIONS: Eight out of every 1000 patients with a pacemaker installed in the study period had a history of MBS. The most common arrhythmia was bradycardia and the most common reason for pacemaker placement was sick sinus syndrome. These results do not indicate causality but may demonstrate an association between MBS and arrhythmias. Bariatric patients undergo pacemaker placement at a younger age. The relationship between bariatric surgery and cardiac arrhythmias warrants further study.

Utilization of Laparoscopic Colon Surgery in the Texas Inpatient Public Use Data File (PUDF).

BACKGROUND: Laparoscopic surgery has become the standard of care for the most common surgical procedures performed. However, laparoscopic techniques have not reached this same penetrance in colorectal surgery. We wanted to determine the percentage of colon operations performed in Texas that were done via laparoscopic, robotic and open techniques. METHODS: The Texas Inpatient Public Use Data File (PUDF) was queried using ICD-9-CM diagnostic and procedure codes to determine overall utilization of laparoscopic colectomies (LC) in Texas between 2013-14 for reporting facilities. We specifically looked at cost and the length of stay for LC, open colectomy (OC) and robotic assisted colectomy (RAC). RESULTS: In the state of Texas between 2013-14 there were 20,454 colectomies performed. Of these 12,328 (60.3%) were OC, 7,536 (36.8%) were LC, and 590 (3.9%) were RAC. Average total cost was $117,113 for OC, $75,741.9 for LC, and $81,996.2 for RAC. Average length of stay for each technique was 10.6 days for OC, 6.1 days for LC, and 5.1 days for RAC. The risk of a postoperative complication occurring was higher in the open procedure than a laparoscopic procedure. CONCLUSIONS: LC accounted for only 36.8% of all colectomies performed in Texas between 2013-14. OC costs twice as much as LC and increased the length of stay by nearly 4 d. LC and RAC are both associated with significantly less cost and length of stay for patients undergoing surgery, while lowering perioperative complications. DISCLOSURES: None of the authors have any relevant disclosures.