Follow-up compliance in patients undergoing abdominal aortic aneurysm repair at Veterans Affairs hospitals.

OBJECTIVE: The Society for Vascular Surgery guidelines recommend annual imaging surveillance following endovascular aneurysm repair (EVAR) and every 5 years following open surgical repairs (OSR) of abdominal aortic aneurysms (AAAs). Adherence to these guidelines is low outside of clinical trials, and compliance at Veterans Affairs (VA) hospitals is not yet well-established. We examined imaging follow-up compliance and mortality rates after AAA repair at VA hospitals. METHODS: We queried the VA Surgical Quality Improvement Program database for elective infrarenal AAA repairs, EVAR and OSR, then merged in follow-up imaging and mortality information. Mortality rate over time was derived using Kaplan-Meier estimation. Generalized estimating equation with a logit link and a sandwich standard error estimate was performed to compare the probability of having annual follow-up imaging over time between procedure types and to identify variables associated with follow-up imaging for EVAR patients. RESULTS: Our analysis included 11,668 patients who underwent EVAR and 4507 patients who underwent OSR at VA hospitals between the years 2000 and 2019. The 30-day mortality rate for EVAR and OSR was 0.37% and 0.82%, respectively. OSR was associated with lower long-term mortality after adjusting age, sex, American Society of Anesthesiologists classification and preoperative renal failure with an adjusted hazard ratio of 0.88 (95% confidence interval, 0.84-0.92; P < .01). Of surviving patients, the follow-up imaging rate was 69.1% by 1 year post-EVAR. The follow-up rate after 5 years was 45.6% post-EVAR compared with 63.6% post-OSR of surviving patients. A history of smoking or drinking, baseline hypertension, and known cardiac disease were independently associated with poor follow-up after EVAR. CONCLUSIONS: Patients undergoing elective open AAA repair in the VA hospital system had lower long-term mortality compared with patients who underwent endovascular repair. Compliance with post-EVAR imaging is low. Patient factors associated with poor post-EVAR imaging surveillance were smoking within the last year, excess alcohol consumption, and cardiac risk factors including hypertension, prior myocardial infarction, and congestive heart failure.

Splenic flexure volvulus: a rare case report.

Colonic volvulus, where the colon twists around its mesentery, commonly occurs in the sigmoid and cecum. However, colonic volvulus of the splenic flexure is quite rare. Reported cases are limited but suggest that prolonged constipation in patients with either congenital anomalies, history of prior abdominal surgery, and or psychiatric history are described as common risk factors for large bowel volvulus. Here, we discuss a case of a 56-year-old man with a history of chronic constipation and no previous abdominal surgeries who presented to the emergency department with abdominal pain and distention. Further workup including a computed tomography imaging and decompressive via limited colonoscopy confirmed diagnosis of colonic volvulus of the splenic flexure. Surgical management of colonic volvulus is patient specific but invariably involves partial colectomy, as was performed in this case.

Adult Hirschsprung's disease: A case report and literature review.

INTRODUCTION & IMPORTANCE: Adult Hirschsprung's disease (AHD) is a difficult diagnosis to make due to its rarity, frequently after emergency interventions have been conducted. We present a case of possible AHD and sketch a classic presentation of Adult Hirschsprung's Disease. This would help recognize and include AHD in the differential diagnoses of chronic constipation where appropriate. CASE PRESENTATION: The case involved a 41-year-old male with a history of multiple abdominal surgeries for volvuli and a ventral hernia repair complicated by post-operative SBO. Presenting symptoms were chronic constipation, abdominal colic, and dilation. SBO secondary to volvulus was discovered, decompressed, and emptied of 3000cc fecal material in the OR. His case was again complicated twice by SBO which led to the suspicion of AHD and instigated this systematic review. Papers were extracted from the EBSCO and PubMed databases. Papers were excluded if patients were younger than 10 years old. CLINICAL DISCUSSION: The classic patient will be a male over the age of 10 years old with an average age of 30 years old and a long history of chronic constipation, often complicated by an acute symptomatic obstruction. Patients may have had a history of multiple surgical or non-surgical interventions to relieve their constipation. CONCLUSION: AHD is being seen more frequently with the increasing availability of healthcare in underserved areas of the world. Duhamel's procedure is the most effective procedure after diagnosis has been made. Barium enema and a biopsy show hypo- or a-ganglionic segments that are to be resected for curative purposes.

Diffuse Cutaneous Manifestations after Drug-Coated Balloon Angioplasty.

We present here a case of an uncommon cutaneous manifestation after paclitaxel-coated balloon angioplasty. In this case, the patient underwent drug-coated balloon angioplasty for stenosis of a prior vein bypass graft. The patient subsequently developed extensive cutaneous lesions not confined to a single arterial distribution. This case represents a rare complication related to paclitaxel-eluting balloons and provides a cautionary tale as well as clinical acumen for providers in using such devices in their practice.

Stent graft repair of anastomotic pseudoaneurysm of femoral-popliteal bypass graft following patch angioplasty.

Pseudoaneurysm (PA) following vascular reconstruction is a complication of bypass surgery. Historically, the mainstay of treatment was an open repair; the surgical management consisted of resection of the initial graft with reimplantation of a new bypass either into the original arteriotomy or to a more distal target. Placement of a stent graft to exclude the PA is a viable option. We present a case of an 85-year-old man with prior history of polytetrafluoroethylene femoral-popliteal bypass now with an 8 × 5.6 cm PA of the distal anastomosis site treated with endovascular placement of a Viabahn stent.

External pancreatic duct stent reduces pancreatic fistula: a meta-analysis and systematic review.

BACKGROUND: Postoperative pancreatic fistula formation (POPF) remains one of the most common and detrimental complications following pancreaticojejunostomy (PJ). The aim of this meta-analysis is to analyze the efficacy of external pancreatic duct stent placement in preventing POPF formation following PJ. METHODS: The primary end-point was the incidence of POPF formation following pancreaticoduodenectomy (PD) in the presence and absence of external stent placement. Secondary outcomes examined were the incidence of perioperative mortality, delayed gastric emptying, postoperative wound infection, operative time, blood loss, and length of hospital stay. RESULTS: Four trials were included comprising 416 patients. External pancreatic duct stenting was found to reduce the incidence of both any grade POPF formation (OR 0.37, 95% CI = 0.23 to 0.58, p = 0.0001) and clinically significant (grade B or C) POPF formation (OR 0.50, 95% CI = 0.30 to 0.84, p = 0.0009) following PD. The use of an external stent was also found to significantly lessen length of hospital stay (SMD -0.39, 95% CI = -0.63 to -0.15, p = 0.001). CONCLUSIONS: This analysis has shown that external pancreatic duct stenting is indeed efficacious in the incidence of both any grade as well as clinically significant POPF formation following PD. Length of hospital stay was also found to be significantly less by external duct stenting.

A rare presentation of triple-negative apocrine breast carcinoma with metastases.

Apocrine breast carcinoma is a rare subtype of the invasive ductal carcinoma and accounts for as little as 0.3-1% of all breast cancers. It is usually positive for human epidermal growth factor receptor 2 (HER-2) and negative for both estrogen receptor and progesterone receptor. Here we present an exceptionally rare case of apocrine breast carcinoma that is a triple receptor negative with metastases and to our knowledge this is the first published case. This is a significant finding because it implies that the tumor would not respond to the typical hormonal agents. This case highlights the need for studies to elucidate better treatment strategies for these types of patients.

Is surgical intervention avoidable in cases of emphysematous gastritis? A case presentation and literature review.

INTRODUCTION: Gas located within the gastric wall is a rare finding that is associated with a mortality rate of 50%. It confers two main diagnoses: gastric emphysema and emphysematous gastritis. Due to its high mortality rate, emphysematous gastritis must be differentiated from gastric emphysema early to avoid adverse outcomes and plan the management of these patients. PRESENTATION OF CASE: We introduce a 55 year-old male who presents with diffuse abdominal pain associated with fever, nausea, vomiting, and diarrhea. Patient has positive peritoneal signs with fever and leukocytosis. Air in the gastric wall and portal venous system was visualized on Computed Tomography (CT). The patient underwent emergent laparotomy which showed normal bowel with few adhesions. DISCUSSION: Various etiologies can cause gas within the gastric wall but concomitant air in the hepatic venous system is highly suspicious for emphysematous gastritis. CT imaging is the most sensitive and specific way to differentiate emphysematous gastritis versus gastric emphysema. Although rare, there are many cases of emphysematous gastritis that undergo prompt surgical exploration. Recently, however, medical treatment has become more common and surgical management reserved for complications. CONCLUSION: We conclude by stating that this case of emphysematous gastritis, due to gastric ulcers, would have no difference in outcome if treated medically instead of surgically. Historically, patients with emphysematous gastritis warranted surgical intervention. More recently, case reports of emphysematous gastritis are favoring conservative management. The consensus still remains that there is no standard approach for these patients and most patients in extremis are undergoing surgical intervention.

Advanced age is a risk factor for post-operative complications and mortality after a pancreaticoduodenectomy: a meta-analysis and systematic review.

BACKGROUND: The aim of this meta-analysis was to analyse the outcomes of major pancreatic surgery among the elderly (≥75 and ≥80 years of age). METHODS: A systematic literature search was conducted using Embase, MEDLINE, Cochrane and PubMed databases on all studies published between January 1990 and April 2012 reporting peri-operative outcomes after a pancreaticoduodenectomy (PD) among the elderly. Primary end-points measured were peri-operative mortality and the incidence of post-operative complications. Secondary outcomes considered included the incidence of post-operative pancreatic fistula formation (POPF), delayed gastric emptying (DGE), wound infection, pneumonia, post-operative bleeding and length of hospital stay. RESULTS: Eleven trials were included comprising 5186 patients; 7 studies comparing endpoints in patients aged ≥75 years vs. younger populations and 4 studies comparing endpoints in patients aged ≥80 years vs. younger populations. In both groups, there was a statistically significant increase in the incidence of mortality and post-operative pneumonia in the elderly population. The incidence of post-operative complications was also found to be statistically significant among patients ≥80 years of age vs. their younger cohorts. CONCLUSIONS: There is an increased incidence of post-operative mortality and pneumonia after a PD among all elderly patients ≥75 years of age, as well as an increased incidence of post-operative complications among patients ≥80 years of age. Additional randomized control trials studying post-PD operative outcomes in elderly vs. younger patients with standardization of comorbidities is therefore necessary to confirm the conclusions presented here.