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Small bowel diverticula in elderly patients: a case report and review article

Abstract

Background

Small intestine diverticula are rare findings that were mostly reported in the elderly population as asymptomatic findings. However, they can also present with a wide range of symptoms (bloating, early satiety, chronic abdominal discomfort, and diarrhea/steatorrhea) or complications (gastrointestinal bleeding, small bowel obstruction, acute diverticulitis, or perforation) which in turn warrant medical treatment or urgent surgical intervention.

Case presentation

This is a case report of an 84-year-old female who presented with an acute surgical abdomen. An exploratory laparotomy revealed complicated small bowel diverticula with a jejunal diverticulum perforation, for which a diverticulectomy was performed.

Conclusions

Throughout this paper, we are aiming to outweigh the consideration of the possibility of complicated small bowel diverticula as a differential in the evaluation of any acute abdomen, especially in the elderly, which warrants emergency surgical management.

Peer Review reports

Background

Excluding Meckel’s diverticulum, small bowel diverticula are rare findings that have been reported anywhere in the small bowel, with the duodenum being the most common site. This latter is followed to a much lesser extent by the jejunum or ileum, and lastly with the three locations simultaneously combined [1]. Its prevalence rises with age, peaking in the 50–70s [2]. While diverticula can be classified as congenital or acquired, non-Meckel diverticula are mostly acquired pseudodiverticula, composed of mucosa, submucosa, and serosa only. Their exact etiology has not been definitively identified. However, intestinal dysmotility and the structural weakness of penetration areas of the vasa recta blood vessels and nerves have been thought to play a role [3]. Most small bowel diverticula patients are asymptomatic. Nevertheless, some may present with chronic symptoms such as bloating, early satiety, chronic abdominal discomfort, diarrhea/steatorrhea due to bacterial overgrowth, or with complications such as gastrointestinal bleeding, small bowel obstruction, obstructive jaundice/recurrent pancreatitis, acute diverticulitis, or perforation [3]. Small bowel diverticula can be visualized on contrast imaging of the gastrointestinal tract, Computed Tomography (CT) scans, and Magnetic Resonance Imaging (MRI), or intraoperatively. Asymptomatic patients do not need treatment. However, the management of symptomatic cases depends on the clinical presentation (e.g., antibiotic therapy in cases of diarrhea and malabsorption caused by bacterial overgrowth, Endoscopic Retrograde Cholangiopancreatography (ERCP) in choledocholithiasis, and surgery in the acute abdomen presentation) [3,4,5]. Throughout this paper, in the light of a literature review, we describe a case of an 84-year-old female with complicated small bowel diverticula.

Case presentation

An 84-year-old female was admitted to the Department of General Surgery complaining of severe, generalized abdominal pain with epigastric intensification. The pain started 24 h before admission and gradually increased. It was accompanied by nausea, but no reported vomiting. A medical history of epigastric pain that worsened one hour postprandial, which after investigations were attributed to gallstones, was observed. Thus, a cholecystectomy after which the pain was not completely relieved. Later on, the patient was diagnosed with a peptic ulcer and put on a proton pump inhibitor. However, the abdominal discomfort persisted. She was also previously diagnosed with atrial fibrillation, mitral valve regurgitation, constipation attributed to her old age, and external hemorrhoids treated conservatively. Medication history consisted of (Aspirin 100 mg, Omeprazole 30 mg, Digoxin 0.25 mg, and Lasix). On admission, the patient was alert with vital signs as follows: (Blood Pressure 120/80 mmHg, Temperature 38.5 °C, Respiratory Rate 20/min, and Heart Rate 98 beats/min). Physical examination revealed a hernia in the epigastric region, marked tenderness in the right hypochondriac area with abdominal guarding. An abdominal Ultrasound was performed reporting a resected gallbladder, a heterogeneous mass in the epigastric area, and a 7 mm epigastric midline hernia (i.e., linea alba hernia) that contained intestinal loops (Figs. 1, 2). A Chest X-ray showed free gas under the right diaphragm (Fig. 3). Laboratory test results showed high levels of red blood cells (7 million cells/mcL), white blood cells (15,800 mcL), C-reactive protein (CRP) (90.2 mg/dL), and low levels of hemoglobin (11.1 g/dL) and albumin (3.1 g/dL). Whereas Creatinine, Bilirubin, Amylase, and Lipase values were within the normal limits (Table 1). An echocardiogram (ECG) reported mitral leaflets vegetations, posterior leaflet prolapse with severe regurgitation, a pulmonary pressure of 65 mmHg, and calcification of the aortic valve. An exploratory laparotomy was performed, via a median incision. Afterward, a cloudy fibrinous exudate was noticed in the abdominal cavity. Exploration of the bowels revealed many small diverticula that spread over the entire small intestines (Fig. 4). One jejunal diverticulum (JD) was perforated (Fig. 5). The omentum was spotted gathered around the perforated JD in the epigastric area, which explained the heterogeneous mass marked on abdominal ultrasound. Diverticulectomy and suturing were applied to the perforated diverticulum. The other intestines’ investigation showed Meckel’s diverticulum 70 cm away from the ileocecal valve (Fig. 6). The large intestines were found spared of any diverticula. IV fluids, Ceftriaxone 1 g q12h, Gentamicin 80 mg q12h, Ranitidine 50 mg q12h, and Acetaminophen 500 mg were administered. Postoperative monitoring confirmed the stability of the patient’s vital signs and general condition improved, and consequently, the patient was discharged 5 days after surgery. The histopathological findings of the 2 × 1.5 × 0.5 cm resected perforated jejunal diverticulum revealed nonspecific acute inflammatory changes with acute inflammatory infiltrate in the surrounding fat tissue. Six days after surgery, a symptom of mild, non-productive cough was reported. On physical exam, chest auscultation findings demonstrated decreased breath sounds at the lung bases, with no rales or wheezing, whereas the vital signs were normal. Oxygen saturation was 96%. A Chest X-ray showed bilateral pleural effusion that was eventually considered a normal post-surgical reaction (Fig. 7).

Fig. 1
figure 1

Abdominal Ultrasound demonstrating a normal liver and a resected gallbladder

Fig. 2
figure 2

Abdominal Ultrasound showing an accumulation of intestinal loops in the epigastric area

Fig. 3
figure 3

Posterior-Anterior erect chest X-ray showing free gas under the right diaphragm

Table 1 Admission laboratory tests results
Fig. 4
figure 4

Gross representation of diverticula spreading over the entire small bowels

Fig. 5
figure 5

Gross view of the perforated jenjunal diverticulum

Fig. 6
figure 6

Gross image of Meckel’s diverticulum 70 cm away from the ileocecal valve

Fig. 7
figure 7

Posterior-Anterior erect chest x-ray showing a bilateral pleural effusion

Discussion and conclusion

JD is a disease of elderly people, and over 80% of affected individuals are in the 7th decade of life. The average age of presentation is 62 years, and its incidence is slightly more common in men. According to the literature containing 290 patients, the age of the patients ranged between 45 and 90 years old, with only one case in which the age of the patient was 36. The diverticula incidence in the colon simultaneously with the jejunoileal diverticulum is 20–70%, in the duodenum 10–40%, in the esophagus and stomach 2%. While some patients with complicated JD were asymptomatic [1, 3, 5,6,7,8,9,10,11,12], the rest presented with abdominal pain with features of bowel obstruction such as vomiting and constipation, or with perforation symptoms. With regard to its diagnosis, complicated JD can manifest as a bullion-like appearance on barium radiograph. Although enteroclysis and enterography are the best imaging modalities in the diagnosis of complicated JD, their use in emergency situations is limited. Therefore, radiographs and computed tomography imaging are mostly used. While radiographs can reveal features such as free air under the diaphragm or others [1, 8, 11, 13,14,15,16,17,18], many were unremarkable [5, 6, 9, 19,20,21,22,23]. However, CT imaging is a more reliable method of diagnosis and was able to show the features of this entity in all cases when it was obtained [1, 4, 7, 9, 10, 13, 15, 17, 22,23,24,25,26,27,28]. A diagnostic laparoscopy was also done in some cases [4,5,6, 8, 12, 14, 15, 19,20,21, 26, 29]. Rarely, other diagnostic tools such as Ultrasonography were performed [4, 6, 13, 14, 17]. To sum up, a CT scan seems to be the best imaging modality of choice, especially in emergency situations to ensure not to miss any complicated JD cases that can subsequently result in detrimental outcomes. In general, management is not indicated in asymptomatic small bowel diverticulosis. However, the treatment option in symptomatic cases is based on the clinical presentations (antibiotic therapy, restricted diet, and surgical management with open or laparoscopic-assisted resection). In light of our literature review, there were 23 patients who were treated conservatively and 267 patients underwent surgery. Jejunal resection, segmental resection of the jejunum or small bowel resection, with end-to-end or side by side anastomosis, was performed in the majority of cases [1,2,3, 6,7,8,9, 11, 12, 14, 19, 20, 23, 26, 29,30,31]. In the article by Spasojevic M et al., the authors report 3 groups; group 1 had a review of published cases after 1995 combined with their original data; group 2 had data from the Norwegian Patient Registry, and group 3 had cases reported in the literature before 1995 and were considered as controls. There were no significant differences in the outcomes of conservative or surgical management between the groups. However, there was a difference in the type of surgical procedure, in which surgical resection outcomes were better in group 1 compared to group 3. Whereas the surgical procedure most often performed in group I was small bowel resection (83, 90.1%), followed by suture closure (5, 5.5%), small bowel resection in group III was performed in 31 (67.4%) patients and suture closure in 15 (32.6%) [3]. Lempinen et al. performed jejunal resection with anastomosis in cases 1–6. In addition to appendectomy in case 2, whereas the patient in case 8 underwent excision of the fistula and end-to-end anastomosis. However, there was no resection in case 7, only adhesiolysis and decompression [4]. There were some cases where the resection was not required [16, 18], therefore, the surgical procedure included repairing the perforations. A laparotomy diverticulectomy for a perforated diverticulum with a single-layer duodenal closure was the treatment of choice in one case [10]. Additional large non-inflamed widely spaced diverticula were discovered in another case and were left not excised [7]. The conservative treatment may be recommended in cases with surgery contraindications [17, 22, 27] or as initial management of an acute attack of diverticulitis [6]. It was mainly based on intravenous/oral antibiotics and anti-inflammatory medications, including Prednisolone, Ciprofloxacin, Piperacillin-Tazobactam, Metronidazole, Trimethoprim, Sulfamethoxazole, and Levofloxacin. By follow-up, most cases were discharged alive 1-week post-operation. Mortality was significantly higher in Group III (23.4%) compared to Group I (5.7%) [3]. In addition, two patients died as reported in case 5 on 17 days post-operation [4], and in case 3 of an 85-year-old patient with esophagus adenocarcinoma, even though it was asymptomatic for 1-year post-operation before presenting with unrelated transient small intestine obstruction [27]. Long-term doxycycline was prescribed in case 2 [27]. Moreover, patients were discharged in 2–48 days of operation, the patient was discharged on day 48 in case 6 [4] while the hospitalization period was only 2 days in case 4 [27]. A few months of follow-up, CT revealed no extraperitoneal air or mesenteric infiltration [17]. Overall, no serious complications or recurrence was observed in the majority of cases except an episode of aspiration pneumonia [16], hospital-acquired pneumonia [11], swelling of the hand joints, polyarthralgia, fatigue 3 days post-operation [14], and wound infection at suture site [3, 8]. With that in mind, small bowel diverticula can have several complications such as bleeding, obstruction, and diverticulitis that can lead to perforation [32,33,34]. In the current paper, we provide a case of perforated jejunal diverticulitis. Perforation is one of the rarest complications (2.1–7% of diverticulitis cases), but carries a great risk with high mortality rates [32, 34]. The clinical presentation in the cases of perforation is mostly acute with symptoms and signs similar to peritonitis such as fever and severe abdominal tenderness. Complications of diverticula can be managed conservatively or surgically, mainly in cases of perforation [32,33,34]. The extent of resection can cause further consequences, especially in cases with extensive diseases involving large parts of the bowel. Therefore, clinical evaluation is required to avoid short bowel syndrome [25] (Table 2). Furthermore, the role of interventional radiology in the management of complicated small bowel diverticula has been growing, especially in managing cases of bleeding [35]. Therefore, we recommend consulting interventional radiology when encountering cases of complicated diverticula. In conclusion, resection of the small bowel diverticulum and repair of the perforations should be considered for the management of these cases, resulting in a high rate of survival and good outcomes. Antibiotics could be prescribed to avoid complications. The conservative treatment may be suggested for patients with surgery contraindications.

Table 2 .

Availability of data and materials

Not applicable. All data (of the patient) generated during this study are included in this published article and its additional information files.

Abbreviations

CT:

Computed tomography

MRI:

Magnetic resonance imaging

ERCP:

Endoscopic retrograde cholangiopancreatography

ECG:

Echocardiogram

JD:

Jejunal diverticulum

CRP:

C-reactive protein

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Acknowledgements

We are grateful to Dr. Mohammad Fael for his help in combining the data.

Guarantor

Fawaz K Mohamed is the guarantor of this work.

Funding

No funding was required.

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Authors and Affiliations

Authors

Contributions

MM: design of the study, data collection, data interpretation and analysis, drafting, tables design, critical revision, approval of the final manuscript. YA: data collection, data interpretation, and analysis, critical revision, drafting, approval of the final manuscript. RB: data interpretation and analysis, critical revision, drafting, approval of the final manuscript. NS: data interpretation and analysis, critical revision, table design, drafting, approval of the final manuscript. TA: drafting, critical revision, approval of the final manuscript. FM: The Supervisor, patient care, drafting, critical revision, approval of the final manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Marah Mansour.

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Mansour, M., Abboud, Y., Bilal, R. et al. Small bowel diverticula in elderly patients: a case report and review article. BMC Surg 22, 101 (2022). https://doi.org/10.1186/s12893-022-01541-y

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Keywords

  • Small bowel diverticula
  • Complicated small intestinal diverticulosis
  • Jejunal diverticulum perforation
  • Diverticulectomy
  • Case report
  • Review article