Are Postoperative Intravenous Antibiotics Indicated After Laparoscopic Appendicectomy for Simple Appendicitis? A Prospective Double-blinded Randomized Controlled Trial.

BACKGROUND: There is limited evidence for the use of postoperative antibiotics for simple appendicitis (SA) in children. Our aim was to conduct a prospective double-blinded randomized controlled trial to investigate this after a laparoscopic appendicectomy. METHODS: Following ethical approval, children (≤16 years) undergoing appendicectomy were recruited at a single institution. Patients were randomized intraoperatively to receive either 2 postoperative intravenous doses of placebo or antibiotics (Abx). All patients received a dose of Abx at induction of anesthesia. Primary outcome was the incidence of postoperative wound infection (WI), and secondary outcome was the incidence of intra-abdominal abscess formation. Data are reported as number of cases (%), median (range), relative risk, and analyzed using Mann Whitney U test, Chi-square test, as appropriate, a P-value ≤0.05 was considered significant. RESULTS: A total of 304 patients were randomized. Sixty-one were subsequently excluded due to protocol violations or recruitment errors; therefore, 243 were included in the final analysis. One hundred twenty-two patients received placebo and 121 Intravenous Abx. There was no difference between the sex (50F/72 M vs 47F/74 M, P = 0.8), median age (12.4 vs 12.2 years, P = 0.5), and postoperative length of stay in a hospital (27.2 vs 25.6 hours, P = 0.7). There was also no difference in the preoperative blood results. A total of 9 WIs occurred: 8/122 (6.6%) placebo versus 1/121 (0.8%) Abx, P = 0.01 [relative risk for WI 7.9 (95% confidence interval: 1.0-62.4)]. There were no intra-abdominal abscess in either groups. CONCLUSIONS: This prospective randomized double blinded randomized controlled trial has revealed a significant decrease in WI rates by giving 2 postoperative intravenous doses of Abx, suggesting postoperative Abx are of benefit in SA.

Does peritoneal lavage influence the rate of complications following pediatric Laparoscopic Appendicectomy in Children with Complicated Appendicitis? A Prospective Randomized Clinical Trial.

BACKGROUND: There is ongoing debate concerning the use of peritoneal irrigation in the setting of complicated appendicitis (CA) in children. Our aim was to conduct a prospective randomized controlled trial for the treatment of CA during a laparoscopic appendicectomy in children. METHODS: Following ethical approval (REC10138B), pediatric patients (≤16 years old) were recruited from a single institution over a 3-year time period (2015-2018). Randomization occurred following intraoperative diagnosis of CA to either peritoneal lavage (PL) or suction only (SO). Primary outcome was the length of stay (LoS), and secondary outcomes were the presence of a postoperative intraabdominal abscess (IAA), wound infection (WI), or adhesive small bowel obstruction (ASBO). Data are reported as number of cases (%), median (range), odds ratio [OR] and analyzed using t-test and Fisher's exact test. A p-value ≤0.05 was considered significant. RESULTS: A total of 100 pediatric patients were recruited into the trial. Sixteen were excluded owing to either recruitment or protocol violations, and therefore a total of 86 underwent final analysis: 44 PL and 42 SO. There was no significant difference in the LoS: 5.7 (PL) vs 5.6 (SO) days, p = 0.75. Only 1 IAA occurred in the PL group: 1/44(2.3%) vs 0/42(0%), p = 1.0. There was 1 ASBOs in the PL group (2.3%, p = 1.0) and no WIs in either of the groups. CONCLUSION: This prospective randomized control trial has revealed equivalence in techniques for the treatment of complicated appendicitis. It has also revealed a low complication rate following pediatric LA with either PL or SO. TYPE OF STUDY: Randomized controlled trial. LEVEL OF EVIDENCE: Level I.

Four-Dimensional Computed Tomography: Clinical Impact for Patients with Primary Hyperparathyroidism.

BACKGROUND: In recent years, four-dimensional computed tomography (4DCT) has emerged as a new localization study for primary hyperparathyroidism (pHPT). OBJECTIVE: We aimed to assess the added value of 4DCT in our institution in the first 4 years of use. METHODS: A retrospective cohort study was conducted from February 2004 to June 2015. Since 2011, patients over 50 years of age without concordant sestamibi-SPECT (SeS) and ultrasound (US) findings underwent 4DCT. Imaging results, surgical findings, histopathology, and postoperative biochemistry were collected. RESULTS: A total of 536 parathyroid operations in 510 patients were performed during the study period. The overall cure rate was 99.2% after reoperation in some patients, and the overall sensitivity for SeS was 76.0%, and 74.8% for US. Since 2011, 100 patients without concordant SeS/US findings have undergone 4DCT, with a sensitivity of 72.9%. This is in comparison to the sensitivities for SeS (48.3%) and US (52.3%). 4DCT was more sensitive in patients with persistent/recurrent disease (60.0% compared with SeS 43.8% and US 36.4%) and patients with multigland disease (67.4% compared with SeS 40.9% and US 42.1%). Comparison between outcomes in the pre- versus post-CT era demonstrated no difference in the initial cure rate (95.4 vs. 95.9%, p = 0.85) or the rate of minimally invasive parathyroidectomies (74.5 vs. 79.9%, p = 0.22). CONCLUSION: Parathyroid 4DCT can aid surgical planning in cases without concordant SeS/US findings; however, the introduction of 4DCT as a second-line test did not change our overall cure rate or rate of minimally invasive parathyroidectomy. The role of 4DCT as the primary localization study for pHPT merits further investigation.

Is selective echocardiography in duodenal atresia the future standard of care?

BACKGROUND: Duodenal atresia (DA) is associated with cardiac defects that may have perioperative care implications. Standard preoperative care includes echocardiography to identify such cardiac defects, but this dogma has been challenged. We aimed to assess selective and selective strategies for preoperative echocardiography in DA patients. METHODS: Single-center retrospective review of neonates with DA over a 16-year period was performed. Data included preoperative cardiovascular and respiratory examination, chest x-ray, and echocardiography. We compared the current nonselective versus selective strategies, limiting preoperative echocardiogram to those in whom: (1) cardiac or respiratory or chest x-ray examination was abnormal, or (2) cardiac or respiratory examination was abnormal. Sensitivity, specificity, positive and negative predictive values were compared with chi-square tests. RESULTS: Seventy-one of 109 (65%) consecutive neonates with DA underwent preoperative echocardiography according to a nonselective, physician-determined strategy. Forty of 71 (56%) patients had cardiac defects, including 16/40 (27%) major defects. Sixteen additional postoperative echocardiograms revealed 2 missed major defects. In the same cohort, selective strategies would have performed 17-24% fewer echocardiograms without significant detriment in performance. CONCLUSIONS: All strategies considered missed some major cardiac defects. A selective strategy, determining DA patients not requiring preoperative echocardiogram, could reduce the number of echocardiograms performed without compromising patient safety. TYPE OF STUDY: Retrospective study. LEVEL OF EVIDENCE: Level II.

Incidental Finding of a Rare Urachal Pathology: Urachal Mucinous Cystic Tumour of Low Malignant Potential.

Urachal mucinous cystic tumours are rare pathological findings with only 23 previously reported cases in the literature. We present the case of a 54-year-old man with an incidentally found urachal mucinous cystic tumour laparoscopically excised. With its known potential to cause pseudomyxoma peritonei, complete surgical excision is important. Long-term cystoscopic and radiological surveillance is also required.