Meta-analysis of the clinical efficacy of laparoscopic appendectomy in the treatment of acute appendicitis

Effect of rapid rehabilitation surgical nursing on patients' gastrointestinal function recovery and sleep quality after laparoscopic appendectomy

BACKGROUND

Appendicitis is a common acute abdominal pain disorder. Laparoscopic appendectomy, a commonly used modality, is associated with less trauma and faster recovery than traditional open appendectomy. However, postoperative recovery remains an important issue that affects rehabilitation quality and surgical results.

AIM

To explore the effects of rapid rehabilitation and surgical nursing care on gastrointestinal function recovery and sleep quality among patients undergoing laparoscopic appendectomy.

METHODS

A total of 120 patients who underwent laparoscopic appendectomy at our hospital between January 2019 and March 2024 and for whom complete clinical data were available were selected. Patients were randomly assigned to two groups (n = 60 each) using the random number table method. The control group received routine nursing care, while the experimental group received rapid rehabilitation surgical nursing care; all patients continued to receive nursing care until discharge. The recovery of gastrointestinal function, length of hospital stay, complications, Pittsburgh sleep quality index, and nursing satisfaction were compared between groups.

RESULTS

Following the implementation of effective nursing measures, the times to bowel sound recovery, first exhaust, first defecation, and first feeding were notably shorter in the study vs control group (P < 0.05). Additionally, the duration of the first postoperative activity and the length of hospital stay were significantly shorter in the study vs control group (P < 0.05). Furthermore, the study group exhibited better sleep quality than the control group (P < 0.05). The postoperative complication rate was significantly lower and the nursing satisfaction rate significantly higher in the study vs control group (P < 0.05).

CONCLUSION

Rapid rehabilitation surgical nursing interventions provided to patients after laparoscopic appendectomy can accelerate their postoperative recovery, reduce the occurrence of complications, and improve their sleep quality and nursing satisfaction.

Laparoscopic appendectomy improves outcomes and reduces costs in rural Kenya

BACKGROUND

Acute appendicitis is a common emergency in rural Kenya. While open appendectomy is widely used, minimally invasive approaches may improve postoperative recovery and superficial surgical site infection rates. However, adoption in resource-limited settings is hindered by cost and availability, with fewer than 1% of operations involving laparoscopy. This study evaluates the effectiveness and costs of laparoscopic versus open appendectomy to inform practices in similar settings.

METHODS

A retrospective study at Tenwek Hospital, Kenya (2015-2019), compared laparoscopic and open appendectomy using a bottom-up micro-costing method for true healthcare costs, adjusted for inflation and expressed in international dollars using purchasing power parity (I$PPP). Outcomes, including operating room turnaround time, hospital length of stay, superficial surgical site infections, and financial impact, were analyzed with Pearson's chi-squared, Wilcoxon rank-sum tests, and a multilevel generalized linear model to adjust for patient comorbidities and severity.

RESULTS

Among 168 patients, median age was 34 years (IQR: 26-44), with 71% men, and perforation in 45%. Laparoscopic surgery was performed on 31 patients, with one conversion, versus open surgery in 137. The laparoscopic group had longer operating room turnaround times (115 vs. 75 min, p < 0.001) but shorter hospital stays (2 vs. 4 days, p = 0.002). Total costs were lower for laparoscopy cases (1527 vs. 1816 I$PPP, p = 0.049), with surgical site infections (3.2% vs. 16.7%, p = 0.026).

CONCLUSIONS

Despite longer surgery times, laparoscopic appendectomy significantly reduces hospital stays, total costs, and surgical site infections compared to open surgery in rural Kenya.

Mesoappendix position variations in laparoscopic appendicectomy; a new anatomical classification to guide surgical strategy

Dissection of the mesoappendix from the appendix is a crucial step in laparoscopic appendicectomies. Variation in the position of the mesoappendix during this common operation has not been previously described. We propose a classification system for the mesoappendix position seen laparoscopically and evaluate the impact each position has on operative difficulty and surgical approach. The mesoappendix positions in laparoscopic appendicectomies between January 2023 and January 2024 were classified into four categories from M1 to M4. Patients were grouped according to their mesoappendix positions. Outcomes evaluated included operative time, need for additional ports, use of energy devices, deviations from standard operative approach. Various mesoappendix positions were correlated with the intra-operative appendix position and histopathological findings. 104 laparoscopic appendicectomy cases were reviewed. 30 were classified as M1, 31 as M2, 27 as M3, and 16 as M4. Mean operative time was significantly longer for cases where the mesoappendix was in the M3 position (p > 0.001). This position was also more likely to require an additional port and deviate from the standard operative approach including need for retrograde dissection and staple cecectomy. We introduce a potentially surgical important classification system of the mesoappendix in laparoscopic appendicectomies. In this study, we attempt to validate the differences each position has on operative approaches and outcomes. We found that the M3 position is of greater difficulty to approach when dissecting the mesoappendix. This classification may serve as a valuable tool in guiding intra-operative surgical decision-making.

[Laparoscopic interventions in urgent surgery (literature review)]

Laparoscopy is increasingly used in emergency surgery, demonstrating several advantages over open interventions.

MATERIAL AND METHODS

A systematic literature review for 2018-2023 was performed, searching PubMed, MEDLINE, RSCI, CyberLeninka databases. 33 studies on the use of laparoscopy in acute surgical abdominal diseases were selected.

RESULTS

The most convincing data have been obtained regarding laparoscopic treatment of acute appendicitis, cholecystitis, and gynecological pathology. There is a growing number of studies confirming the effectiveness of laparoscopy in intestinal obstruction, perforated ulcers, and abdominal trauma. Numerous publications indicate a reduction in the complication rate, decreased pain, shortened treatment and rehabilitation time after laparoscopic surgeries compared to open ones. At the same time, insufficient integration of the method into practice, lack of clear patient selection criteria, and the need for further standardization are noted.

CONCLUSION

Laparoscopy should be considered as the method of choice in many urgent surgical conditions; however, further study and development of uniform protocols are required for wider implementation into the routine practice of emergency surgery.

Outcome of Laparoscopic Appendectomy: A Retrospective Study From a Local Secondary Referral Hospital

Introduction Laparoscopic appendectomy is currently considered the operation of choice for patients with suspected acute appendicitis. This study aimed to assess the safety and feasibility of laparoscopic appendectomy in the setting of a secondary referral hospital. Methods A retrospective cohort study was conducted from January 2021 to December 2023. Records of patients older than 14 years of age who underwent appendectomy were retrieved. Patients were divided according to the type of technique used into two groups: group I (G1) consisted of patients who underwent laparoscopic appendectomy and group II (G2) included those with an open appendectomy. Patients who underwent interval appendectomy or incidental to other procedures were excluded. The two groups were compared in terms of patient demographics, pathological findings, operative time, postoperative course, and outcome. Results Laparoscopic appendectomy was performed in 101 patients while open appendectomy was done in 121 patients. There were no statistical differences between both groups regarding operative time, blood loss, time for oral intake resumption, hospital stay, or postoperative complications. Despite being not statistically significant, surgical site infection was lower in G1 as compared to G2 (3% versus 8.3%, p=0.09). Narcotic use was significantly less following laparoscopic appendectomy. In the late settings cases of G1, there was a relatively improved mean operative time (32.7 ±18.3) when compared to early settings appendectomy (62.4±26.3), which was statistically significant (P=0.001). Conclusion Laparoscopic appendectomy is safe, feasible, and adoptable even by junior staff. Therefore, it could be applicable in settings of secondary referral hospitals as an initial line of management when performed by an expert surgeon or trainee under the supervision of seniors.

No genetic causality between appendectomy and gastrointestinal cancers: a Mendelian randomization study and meta-analysis in European population

The impact of appendectomy on the risk of gastrointestinal cancers remains unknown. We aimed to systematically estimate the causal relationship between appendectomy and gastrointestinal cancers in the European population using two-sample Mendelian randomization (TSMR) study methods and meta-analysis. As part of the discovery cohort analysis, we identified independent genetic variants strongly associated with appendectomy from the UK Biobank (50,105 cases) to serve as instrumental variables (IVs). Summary-level data for gastrointestinal cancers were obtained from the FinnGen study. As the replication cohort, IVs associated with appendectomy were extracted in the FinnGen study (28,601 cases). The data for gastrointestinal cancers were obtained from the UK Biobank. Finally, meta-analyses were conducted to evaluate the combined causal effects of the MR results. We found no causal relationship between appendectomy and gastrointestinal cancers in both the discovery and replication cohorts. Finally, the meta-analysis revealed no causal association between appendectomy and gastrointestinal cancers. Our findings suggest no causal relationship exists between appendectomy and gastrointestinal cancers in the European population. This genetic evidence supports the conclusion from other observational studies that appendectomy does not affect the risk of gastrointestinal cancers in the European population.

Daytime versus nighttime appendectomy in term of complications and clinical outcomes: a meta-analysis

BACKGROUND

Appendicitis is one of the most common acute surgical conditions globally. However, the association between nighttime appendectomy and patients' morbidity and mortality is unclear. This study aims to compare outcomes following nighttime versus daytime appendectomy.

METHODS

The PubMed, Embase, Cochrane Library, and Web of Science databases up to March 26, 2024 (updated on July 1, 2024) were searched. The primary outcomes were postoperative complications and mortality. Secondary outcomes included intraoperative complications, reoperation, readmission, conversion to laparotomy, hospital stay and operation time. Mean difference (MD) or odds ratios (OR) and 95% confidence intervals were calculated.

RESULTS

Fifteen studies totaling 33,596 patients were included. There were no differences between nighttime and daytime appendectomy for rates of overall postoperative complications (OR 0.93, 95% CI 0.87, 1.00, 14 studies), mortality (OR 1.70, 95% CI 0.37, 7.88, 7 studies), intraoperative complications (OR 0.88, 95% CI 0.08, 9.86; 2 studies), reoperation (OR 0.39, 95% CI 0.06, 2.55; 3 studies) and readmission (OR 0.86, 95% CI 0.65, 1.13; I2 = 0%, 5 studies). However, the conversion to laparotomy risks (OR 1.92, 95% CI 1.12, 3.29; 6 studies) among patients who underwent appendectomy during nighttime was significantly elevated compared to daytime.

CONCLUSIONS

There was no increased risk or difference in postoperative mortality and complication rates associated with nighttime compared with daytime appendectomy. However, future studies should assess the reasons for higher conversion rates during the night.

Exploring the causality of appendectomy and ischaemic heart disease: a Mendelian randomization study and meta-analysis

Background

The risk of ischaemic heart disease (IHD) is increased in appendectomy patients, but it is not clear whether there is a causal relationship. We aimed to systematically estimate the causal relationship between appendectomy and IHD and its subtypes, acute myocardial infarction (AMI) and angina pectoris (AP), using Mendelian randomization (MR) study methods and meta-analysis.

Methods

As the discovery cohort analysis, we extracted independent genetic variants strongly associated with appendectomy from the FinnGen study (28,601 cases) as instrumental variables (IVs). Genome-wide association study (GWAS) from UK Biobank were selected for outcome data. A first two-sample MR analysis was then conducted. As the replication cohort, IVs associated with appendectomy were extracted in the UK Biobank (50,105 cases). GWAS from the FinnGen study were selected for outcome data. A second MR analysis was then performed. Finally, meta-analyses were applied to assess the combined causal effects of the MR results.

Results

In the discovery cohort, there was a significant positive causal relationship between appendectomy and IHD and its subtypes AMI and AP. The replication cohort only found a positive causal relationship between appendectomy and AMI. Meta-analysis showed a positive causal relationship between appendectomy and IHD (OR: 1.128, 95% CI: 1.067-1.193, P = 2.459e-05), AMI (OR: 1.195, 95% CI: 1.095-1.305, P = 6.898e-05), and AP (OR: 1.087, 95% CI: 1.016-1.164, P = 1.598e-02).

Conclusions

This comprehensive MR analysis suggests that genetically predicted appendectomy may be a risk factor for the development of IHD and its subtypes AMI and AP. We need to continue to pay attention to these links.

The diagnostic value of serum hepcidin in acute appendicitis

BACKGROUND

Acute appendicitis (AA) is the primary cause of acute abdomen in patients presenting to the emergency department with abdominal pain. Limited studies have explored the relationship between serum hepcidin levels and AA. This study aimed to measure serum hepcidin levels in patients undergoing surgery with a preliminary diagnosis of AA and to assess whether these levels can serve as a biochemical marker for diagnosing AA.

METHODS

This study included patients aged 18 or older who presented to the emergency department between April 2018 and May 2019 and underwent surgery with a diagnosis of AA. The cohort comprised 94 patients with surgical pathology results compatible with AA (Group A), 16 patients with results not compatible with AA (Group B), and 42 healthy controls. Serum hepcidin levels were measured from venous blood samples.

RESULTS

Mean hepcidin levels were 1750±285 pg/mL in Group A, 1349±381 pg/mL in Group B, and 1066±225 pg/mL in the control group. Statistically significant differences in serum hepcidin levels were observed between Group A and the control group (p<0.05).

CONCLUSION

Hepcidin levels were significantly higher in patients with AA compared to both the control group and patients with surgically confirmed non-AA pathology. Therefore, hepcidin may serve as a useful adjunct in diagnosing acute appendicitis.

Evaluating the surgical trainee ergonomic experience during minimally invasive abdominal surgery (ESTEEMA study)

Minimally invasive abdominal surgery (MAS) can exert a physical cost. Surgical trainees spend years assisting minimally-invasive surgeries, increasing the risk of workplace injury. This prospective questionnaire-based cohort study was conducted amongst general surgery residents in Singapore. Residents assisting major MAS surgery were invited to complete anonymous online survey forms after surgery. The Phase 1 survey assessed physical discomfort scores and risk factors. Intraoperative measures to improve ergonomics were administered and evaluated in Phase 2. During Phase 1 (October 2021 to April 2022), physical discomfort was reported in at least one body part in 82.6% (n = 38) of respondents. Over a third of respondents reported severe discomfort in at least one body part (n = 17, 37.0%). Extremes of height, training seniority, longer surgical duration and operative complexity were significant risk factors for greater physical discomfort. In Phase 2 (October 2022 to February 2023), the overall rate of physical symptoms and severe discomfort improved to 81.3% (n = 52) and 34.4% (n = 22) respectively. The ergonomic measure most found useful was having separate television monitors for the primary surgeon and assistants, followed by intraoperative feedback on television monitor angle or position. Close to 20% of survey respondents felt that surgeon education was likely to improve physical discomfort.

The Impact of Laparoscopic Appendectomy and Open Appendectomy on B7-H3-Mediated Intrinsic Immune Response in Children with Acute Suppurative Appendicitis

Purpose

Surgery impairs immune function and increases postoperative complications. B7H3, a co-stimulatory molecule, plays a crucial role in immune regulation. The present study examined the impact of B7H3 on the postoperative immune response in children with acute suppurative appendicitis (ASA) by comparing preoperative and postoperative B7H3 levels in laparoscopic surgery (LA) and open appendectomy (OA).

Patients and Methods

198 pediatric ASA patients were enrolled. The researcher group performed LA, while the control group performed OA. Perioperative time, recovery time of gastrointestinal function, time to pass gas, length of incision, and length of hospitalization were compared in the perioperative period. Additionally, an ELISA assay was conducted to examine the levels of inflammatory factors and B7H3 and CD28. Short-term postoperative complications were also evaluated.

Results

Compared with the control group, the research group had a short operative time, gastrointestinal function recovery time, gas time, and hospitalization time. The short-term complication rate was significantly lower in the research group. More importantly, B7H3 and CD28 were insignificantly different preoperatively, but they were all reduced postoperatively. Moreover, the reduction was more pronounced in the research group. The same results were noted in inflammatory factors and immune markers, which were non-significant different preoperatively and were typically reduced postoperatively, particularly in the research group. Finally, postoperative B7H3 was positively correlated with both inflammatory factors and immune cell levels.

Conclusion

B7H3 was reduced in both postoperative periods, and the reduction was more pronounced in the LA group. B7H3 may be involved in postoperative recovery by modulating postoperative inflammation and immune responses.

Cesena guidelines: WSES consensus statement on laparoscopic-first approach to general surgery emergencies and abdominal trauma

BACKGROUND

Laparoscopy is widely adopted across nearly all surgical subspecialties in the elective setting. Initially finding indication in minor abdominal emergencies, it has gradually become the standard approach in the majority of elective general surgery procedures. Despite many technological advances and increasing acceptance, the laparoscopic approach remains underutilized in emergency general surgery and in abdominal trauma. Emergency laparotomy continues to carry a high morbidity and mortality. In recent years, there has been a growing interest from emergency and trauma surgeons in adopting minimally invasive surgery approaches in the acute surgical setting. The present position paper, supported by the World Society of Emergency Surgery (WSES), aims to provide a review of the literature to reach a consensus on the indications and benefits of a laparoscopic-first approach in patients requiring emergency abdominal surgery for general surgery emergencies or abdominal trauma.

METHODS

This position paper was developed according to the WSES methodology. A steering committee performed the literature review and drafted the position paper. An international panel of 54 experts then critically revised the manuscript and discussed it in detail, to develop a consensus on a position statement.

RESULTS

A total of 323 studies (systematic review and meta-analysis, randomized clinical trial, retrospective comparative cohort studies, case series) have been selected from an initial pool of 7409 studies. Evidence demonstrates several benefits of the laparoscopic approach in stable patients undergoing emergency abdominal surgery for general surgical emergencies or abdominal trauma. The selection of a stable patient seems to be of paramount importance for a safe adoption of a laparoscopic approach. In hemodynamically stable patients, the laparoscopic approach was found to be safe, feasible and effective as a therapeutic tool or helpful to identify further management steps and needs, resulting in improved outcomes, regardless of conversion. Appropriate patient selection, surgeon experience and rigorous minimally invasive surgical training, remain crucial factors to increase the adoption of laparoscopy in emergency general surgery and abdominal trauma.

CONCLUSIONS

The WSES expert panel suggests laparoscopy as the first approach for stable patients undergoing emergency abdominal surgery for general surgery emergencies and abdominal trauma.

Training curriculum in minimally invasive emergency digestive surgery: 2022 WSES position paper

BACKGROUND

Minimally invasive surgery (MIS), including laparoscopic and robotic approaches, is widely adopted in elective digestive surgery, but selectively used for surgical emergencies. The present position paper summarizes the available evidence concerning the learning curve to achieve proficiency in emergency MIS and provides five expert opinion statements, which may form the basis for developing standardized curricula and training programs in emergency MIS.

METHODS

This position paper was conducted according to the World Society of Emergency Surgery methodology. A steering committee and an international expert panel were involved in the critical appraisal of the literature and the development of the consensus statements.

RESULTS

Thirteen studies regarding the learning curve in emergency MIS were selected. All but one study considered laparoscopic appendectomy. Only one study reported on emergency robotic surgery. In most of the studies, proficiency was achieved after an average of 30 procedures (range: 20-107) depending on the initial surgeon's experience. High heterogeneity was noted in the way the learning curve was assessed. The experts claim that further studies investigating learning curve processes in emergency MIS are needed. The emergency surgeon curriculum should include a progressive and adequate training based on simulation, supervised clinical practice (proctoring), and surgical fellowships. The results should be evaluated by adopting a credentialing system to ensure quality standards. Surgical proficiency should be maintained with a minimum caseload and constantly evaluated. Moreover, the training process should involve the entire surgical team to facilitate the surgeon's proficiency.

CONCLUSIONS

Limited evidence exists concerning the learning process in laparoscopic and robotic emergency surgery. The proposed statements should be seen as a preliminary guide for the surgical community while stressing the need for further research.

SAFETY OF SIMULTANEOUS LAPAROSCOPIC APPENDECTOMY IN COMBINATION WITH LAPAROSCOPIC HERNIA REPAIR (TAPP). A SERIES OF CLINICAL CASES

Aim: To evaluate the technical feasibility and safety of a simultaneous surgery: laparoscopic appendectomy in combination with transabdominal preperitoneal hernia repair.

Methods: The study was a retrospective analytical one. The medical histories were studied and postoperative monitoring of eleven patients hospitalized with acute appendicitis who underwent simultaneous surgery: laparoscopic appendectomy with simultaneous laparoscopic plastic surgery of clinically significant inguinal hernia was carried out. During the statistical analysis, the following parameters were evaluated: the timing of postoperative recovery, the frequency of early postoperative complications and the frequency of recurrence of inguinal hernia a year after surgery.

Results: The surgery was successfully performed in all 11 patients. There were no cases of infectious complications of the surgical intervention area. Acute urinary retention was registered in one patient in the early postoperative period. In one case, an early adhesive intestinal obstruction was diagnosed, which was resolved with conservative treatment. There were no cases of recurrent inguinal hernia during the year.

Conclusion: laparoscopic appendectomy in combination with transabdominal preperitoneal hernia repair can be used in the treatment of acute appendicitis in combination with inguinal hernia in the absence of signs of gangrenous appendicitis with purulent peritonitis. The low statistical power of the study does not allow us to draw conclusions about the safety of this approach for patients of the older age group with a high comorbidity index.