Massive splenomegaly is associated with significant morbidity after laparoscopic splenectomy

Risk factors of portal vein system thrombosis after splenectomy: a meta-analysis

BACKGROUND

The primary aim of the present study was to explore risk factors for portal vein system thrombosis following splenectomy.

METHODS

A systematic search of PubMed, Embase and Cochrane libraries was conducted to identify original studies that fulfilled the inclusion criteria. Raw data on potential risk factors for portal vein system thrombosis after splenectomy were extracted for meta-analysis. Subsequently, a sensitivity analysis was conducted to verify the stability of the results.

RESULTS

Eighteen studies with 626 thrombosis events from 1807 splenectomy met the inclusion criteria. Larger spleen volume (SMD 0.44, P = 0.000), broader splenic vein diameter (WMD 2.30, P = 0.000), broader portal vein diameter (WMD 2.08, P = 0.000), a lower velocity of portal blood flow (WMD -0.91, P = 0.001), decreased platelet count (WMD -5.14, P = 0.007), decreased white blood cell (WMD -0.40, P = 0.027), decreased haemoglobin (WMD -9.14, P = 0.002), ascites (OR 1.81, P = 0.003) and bleeding history before surgery (OR 1.88, P = 0.002) were identified to be factors that exacerbated the risk of portal vein system thrombosis after splenectomy. Sex, age, preoperative prothrombin time, postoperative platelet count, postoperative D-dimer, operation time and intraoperative blood loss, did not increase the risk of thrombosis.

CONCLUSION

Larger spleen volume, broader splenic vein diameter, broader portal vein diameter, a lower velocity of portal blood flow, ascites, bleeding history before surgery, decreased platelet count, white blood cell and haemoglobin may increase the risk of portal vein system thrombosis.

Selection of surgical modality for massive splenomegaly in children

BACKGROUND

Laparoscopic splenectomy (LS), a treatment for both benign and malignant splenic diseases, can prove technically challenging in patients with massive splenomegaly. In particular, the optimal surgical modality for treating massive splenomegaly in children remains controversial.

METHODS

The clinicopathologic data of 289 pediatric patients undergoing splenectomy for massive splenomegaly were studied in a retrospective analysis. Accordingly, the patients were classified into the LS surgery group and open splenectomy (OS) surgery group. In the laparoscopy cohort, they were separated into two subgroups according to the method of surgery: the multi-incision laparoscopic splenectomy (MILS) and the single-incision laparoscopic splenectomy (SILS) surgery groups, respectively. Patient demographics, clinical data, surgery, complications, and postoperative recovery underwent analysis. Concurrently, we compared the risk of adverse laparoscopic splenectomy outcomes utilizing univariable and multivariable logistic regression.

RESULTS

The total operation time proved remarkably shorter in the OS group in contrast to the LS group (149.87 ± 61.44 versus 188.20 ± 52.51 min, P < 0.001). Relative to the OS group, the LS group exhibited lowered postoperative pain scores, bowel recovery time, and postoperative hospitalization time (P < 0.001). No remarkable difference existed in post-operation complications or mortality (P > 0.05). Nevertheless, the operation duration was remarkably longer in the SILS surgery group than in the MILS surgery group (200 ± 46.11 versus 171.39 ± 40.30 min, P = 0.02). Meanwhile, the operative duration of MILS and SILS displayed a remarkable positive association with splenic length. Moreover, the operative duration of SILS displayed a remarkable positive association with the age, weight, and height of the sick children. Splenic length proved an independent risk factor of adverse outcomes (P < 0.001, OR 1.378).

CONCLUSIONS

For pediatric patients with massive splenomegaly who can tolerate prolonged anesthesia and operative procedures, LS surgery proves the optimal treatment regimen. SILS remains a novel surgery therapy which may be deemed a substitutional surgery approach for treating massive splenomegaly.

Robotic surgery: extending the minimally invasive approach in patients with splenomegaly. A case report

Splenomegaly represents a challenge during splenectomy. Despite the laparoscopic approach becoming the gold standard for spleen removal, it remains controversial in this condition since the limited working space and increased risk of bleeding portray the leading causes of conversion, preventing patients from experiencing the benefits of minimally invasive surgery. The robotic platform was used to perform a splenectomy on a 55-year-old female with severe thrombocytopenia due to a relapsed large B cell lymphoma with splenomegaly. The advantages of this approach, favoring less blood loss and precise movements in a small surgical field, may allow MIS to become the first choice in this unfavorable setting, even in hematologic malignancies, which are associated with higher complication rates.

A Simple Technique of Tunnel Constructing for Occluding Splenic Vessels During Laparoscopic Splenectomy in Patients with Cirrhosis

Purpose: Dissecting and ligating the splenic artery is crucial for bleeding control during laparoscopic splenectomy (LS). However, for patients with portal hypertension from liver cirrhosis, it is difficult for identification and ligation because the splenic vessel is circuitous and dilated. The aim of this study was to describe a simple technique of constructing a tunnel behind the tail of the pancreas for occluding the splenic vessels during LS in patients with portal hypertension. Materials and Methods: The clinical data of 61 patients who underwent LS from April 2016 to January 2017 were retrospectively analyzed. In 27 patients, the tunnel construction (TC) behind the tail of the pancreas approach was performed owning to difficulty in dissecting and ligating the splenic artery (TC group), including 17 patients who received the TC method directly and 10 patients who received the TC method after trying to dissect the splenic artery. The remaining 34 patients underwent traditional ligating of the splenic artery (LA group). The peri- and postoperative outcomes of operative time, blood loss, conversion rate, postoperative oral diet intake, postoperative hospital stay, and postoperative complication rate of the two groups were analyzed. All the operations were completed by the same group of surgeons. Results: All 61 operations were successfully completed. Compared with patients in the LA group, patients in the TC group had less blood loss (120.37 ± 40.74 mL versus 162.65 ± 87.47 mL; t = -2.317, P = .024). There was no statistical difference of operative time, conversion rate, complication rate, postoperative hospital stays, and follow-up between the two groups. Conclusions: The technique of constructing a tunnel behind the tail of the pancreas for occluding the splenic vessels was effective and safe in those patients whose splenic artery was difficult to dissect and ligate.

Laparoscopic splenectomy for massive splenomegaly: the "splenic no-touch" technique for hilar control by anterior lienorenal approach

PURPOSE

Laparoscopic splenectomy is challenging in patients with massive splenomegaly. The paper describes a technique that overcomes the difficulties one faces while dealing with a massive spleen laparoscopically.

METHODS

We describe our splenic no-touch technique through the anterior lienorenal approach in patients undergoing laparoscopic splenectomy for massive splenomegaly during a 10-year period from January 2010 to January 2020.

RESULTS

During the study period, 14 patients underwent laparoscopic splenectomy for massive splenomegaly. Of these, 13 patients had successful laparoscopic completion of the procedure. One patient required conversion for bleed. There were no pancreatic tail injuries during splenic hilar stapling in any patient. The median operative time was 170 minutes (140-225). The median blood loss was 50 mL (20-600). Two patients required blood transfusions. There was no other morbidity or mortality. The median postoperative stay was 2 days.

CONCLUSION

The splenic no-touch technique using the anterior lienorenal approach for laparoscopic splenectomy is safe and feasible in patients with massive splenomegaly. Preoperative imaging enables optimal port placement and procedure ergonomics.

Splenomegaly in patients with primary or secondary myelofibrosis who are candidates for allogeneic hematopoietic cell transplantation: a Position Paper on behalf of the Chronic Malignancies Working Party of the EBMT

Splenomegaly is a hallmark of myelofibrosis, a debilitating haematological malignancy for which the only curative option is allogeneic haematopoietic cell transplantation (HCT). Considerable splenic enlargement might be associated with a higher risk of delayed engraftment and graft failure, increased non-relapse mortality, and worse overall survival after HCT as compared with patients without significantly enlarged splenomegaly. Currently, there are no standardised guidelines to assist transplantation physicians in deciding optimal management of splenomegaly before HCT. Therefore, the aim of this Position Paper is to offer a shared position statement on this issue. An international group of haematologists, transplantation physicians, gastroenterologists, surgeons, radiotherapists, and radiologists with experience in the treatment of myelofibrosis contributed to this Position Paper. The key issues addressed by this group included the assessment, prevalence, and clinical significance of splenomegaly, and the need for a therapeutic intervention before HCT for the control of splenomegaly. Specific scenarios, including splanchnic vein thrombosis and COVID-19, are also discussed. All patients with myelofibrosis must have their spleen size assessed before allogeneic HCT. Myelofibrosis patients with splenomegaly measuring 5 cm and larger, particularly when exceeding 15 cm below the left costal margin, or with splenomegaly-related symptoms, could benefit from treatment with the aim of reducing the spleen size before HCT. In the absence of, or loss of, response, patients with increasing spleen size should be evaluated for second-line options, depending on availability, patient fitness, and centre experience. Splanchnic vein thrombosis is not an absolute contraindication for HCT, but a multidisciplinary approach is warranted. Finally, prevention and treatment of COVID-19 should adhere to standard recommendations for immunocompromised patients.

Preoperative Splenic Artery Embolization for Massive Splenomegaly in Children: A Single Center Experience

Introduction: Massive splenomegaly in children can complicate minimally invasive splenectomy. Splenic artery embolization (SAE) before splenectomy has been shown to decrease splenic volume, reduce intraoperative blood loss, and decrease conversion rates in laparoscopic surgery. Our objective was to review our recent experience with immediate preoperative SAE in massive splenomegaly for pediatric patients using both laparoscopic and robotic techniques. Materials and Methods: We retrospectively reviewed preoperative SAE outcomes in pediatric patients with massive splenomegaly undergoing minimally invasive splenectomy between January 2018 and July 2021. Results: Four patients, 3 female, ages 5-18 years, had SAE immediately before minimally invasive splenectomy. Two cases were completed robotically, one laparoscopically, and one laparoscopic case required conversion to open. SAE time ranged from 69 to 92 minutes. Time between embolization and surgical start ranged from 26 to 56 minutes, with operative times from 153 to 317 minutes. Estimated blood loss ranged from <10 to 150 mL. Mean length of stay was 3.5 days (range 2-6). Postoperative complications included one patient with ileus and another with concurrent gastritis and urinary tract infection. Splenic size comparisons were difficult to perform due to morselization of the spleen; however, excised spleen weights, measurements, and surgeon's impression suggested decreased size of the spleen after SAE. There were no transfusions, postembolization complications, or deaths. Conclusion: SAE subjectively appears to decrease splenic distension, which should allow for easier manipulation and possibly better visualization of splenic hilar vessels during minimally invasive surgery. Immediate preoperative SAE is safe and feasible and should be considered in pediatric patients with massive splenomegaly.

Ultrasonography in the diagnosis of complications in patients with portal hypertension

This review focuses on ultrasonography (US) to diagnose patients with complications in portal hypertension. Clinicians first use US to evaluate patients with suspected portal hypertension, because US is quick, simple, and radiation free. US is necessary for grading and performing paracentesis for ascites. Doppler US-based detection of reverse splanchnic vein flow or the presence of a spontaneous portosystemic shunt is highly specific in patients with cirrhosis. Since it is important to estimate spleen size in patients with portal hypertension, spleen size is usually measured by US. Spleen volume can be more accurately measured with 3D-US. Estimation of viable residual splenic volume after partial splenic embolization should be limited to cases with total splenic volume less than 1000 ml. Portal vein thrombosis is often detected during the US examination performed when symptoms first appear or during the follow-up. Two-dimensional transthoracic echocardiography is an excellent noninvasive screening test in patients with pulmonary portal hypertension who can undergo it. By measuring the maximum and minimum diastolic blood flow velocities in the renal arteries using renal color Doppler US, the pulsatility index (PI) and resistive index (RI) can be calculated. The PI and RI in cirrhotic patients were significantly higher than those in healthy subjects and patients with chronic hepatitis, and showed a significant positive correlation with the Child-Pugh Score. In conclusion, US is an essential tool for the diagnosis and treatment of patients with portal hypertension.

Splenic volume and splenic vein diameter are independent pre-operative risk factors of portal vein thrombosis after splenectomy: a retrospective cohort study

BACKGROUND

Portal vein thrombosis (PVT) is a common complication following splenectomy. It affects between 5 and 55% of patients undergoing surgery with no clearly defined pre-operative risk factors. The aim of this study was to determine the pre-operative risk factors of PVT.

PATIENTS AND METHOD

Single centre, retrospective study of data compiled for every consecutive patient who underwent splenectomy at Toulouse University Hospital between January 2009 and January 2019. Patients with pre- and post-surgical CT scans have been included.

RESULTS

149 out of 261 patients were enrolled in the study (59% were males, mean age 52 years). The indications for splenectomy were splenic trauma (30.9%), malignant haemopathy (26.8%) and immune thrombocytopenia (8.0%). Twenty-nine cases of PVT (19.5%) were diagnosed based on a post-operative CT scan performed on post-operative day (POD) 5. Univariate analysis identifies three main risk factors associated with post-operative PVT: estimated splenic weight exceeding 500 g with an OR of 8.72 95% CI (3.3-22.9), splenic vein diameter over 10 mm with an OR of 4.92 95% CI (2.1-11.8) and lymphoma with an OR of 7.39 (2.7-20.1). The role of splenic vein diameter with an OR of 3.03 95% CI (1.1-8.6), and splenic weight with an OR of 5.22 (1.8-15.2), as independent risk factors is confirmed by multivariate analysis. A screening test based on a POD 5 CT scan with one or two of these items present could indicate sensitivity of 86.2% and specificity of 86.7%.

CONCLUSION

This study suggests that pre-operative CT scan findings could predict post-operative PVT. A CT scan should be performed on POD 5 if a risk factor has been identified prior to surgery.

Portal vein thrombosis following elective laparoscopic splenectomy: incidence and analysis of risk factors

BACKGROUND

Minimally invasive splenectomy is now well established for a wide range of pathologies. Portal vein thrombosis (PVT) is increasingly being recognised as a complication of splenectomy. The aim was to determine the incidence and risk factors for PVT after laparoscopic splenectomy.

METHODS

All cases of elective laparoscopic splenectomy performed from 1993 to 2020 were reviewed. Parameters recorded included demographics, diagnostic criterion and post-operative outcomes. Data were analysed using Minitab V18 with a p < 0.05 considered significant.

RESULTS

210 patients (103 female, 107 male) underwent laparoscopic splenectomy (14 to 85 years). A major proportion of cases were performed for ITP (n = 77, p = 0.012) followed by lymphoma (n = 28), indeterminate lesions (n = 21) and myelofibrosis (n = 19). Ten patients developed symptomatic portal vein thrombosis (4.8%). Patients presented most commonly with pain and fever and diagnosis was confirmed by computed tomography (CT) or ultrasonography (USS). There were 10 conversions (4.8%) to open and two postoperative deaths, one from PVT and one from pneumonia. The remaining nine patients were successfully treated with anticoagulation. Of 19 patients with myelofibrosis, six patients developed PVT (p = 0.0002). Patients who developed PVT had significantly greater specimen weights (1773 g vs 348 g, p < 0.001). Forty-three patients had a specimen weight of 1 kg or greater, and of these 9 developed portal vein thrombosis (21%), versus one with PVT of 155 with a specimen weight of less than 1 kg (p < 0.0001). Myelofibrosis (p = 0.0039), specimen weight (p < 0.001) and mean platelet count (p = 0.0049) were predictive of PVT.

CONCLUSION

A high index of suspicion for this complication should be maintained and prompt treatment with anticoagulation. High-risk patients should be considered for prophylactic anticoagulation and routine imaging of the portal vein.

Short- and long-term outcomes of 486 consecutive laparoscopic splenectomy in a single institution

Since its introduction in 1991, laparoscopic splenectomy (LS) has become the gold standard in elective spleen surgery in many centres. However, there still lack the report of long-term outcomes of LS with the large-scale cases. The aim of the present study was to analyze the short- and long-term outcomes of LS in a single institution over 16 years, and to compare the perioperative outcomes of totally laparoscopic splenectomy (TLS) and hand-assisted laparoscopic splenectomy (HALS) for splenomegaly.Between November 2002 and December 2018, 486 consecutive patients undergoing elective LS were enrolled in this study, including 222 TLS and 264 HALS. The intraoperative, postoperative, and follow-up data were retrospectively analyzed.The 5 most common indications were hypersplenism (71.0%), immune thrombocytopenia (14.8%), splenic benign tumor (4.5%), splenic cyst (2.9%), and splenic malignant tumor (2.9%). The mean operative time, intraoperative blood loss, and length of stay were 149.4 ± 63.3 minutes, 230.1 ± 225.1 mL, and 6.7 ± 3.2 days, respectively. The morbidity, mortality, reoperation, and conversion rate were 23.0%, 0, 0.4%, and 1.9%, respectively. Portal vein system thrombosis (PVST) was the most frequent complication with an incidence of 19.8%. The incidence of PVST in HALS was higher than that in TLS (23.9% vs 14.9%, P = .013). Compared with TLS, HALS had a shorter operative time (P = .000), lower intraoperative blood loss (P = .000), comparable conversion rate (P = .271), and morbidity (P = .922) for splenomegaly > 17.0 cm. During the follow-up period, the overall respond rate for immune thrombocytopenia was 77.8%, and the esophagogastric variceal bleeding rate was 6.9% in 320 patients with hypersplenism secondary to hepatic cirrhosis.LS is a safe, feasible, and effective procedure with satisfactory short- and long-term outcomes. HALS is a reasonable technique in patients with massive spleens.

Application of Real-Time Augmented Reality Laparoscopic Navigation in Splenectomy for Massive Splenomegaly

OBJECTIVES

To evaluate the clinical impact and technical feasibility of augmented reality laparoscopic navigation (ARLN) system in laparoscopic splenectomy for massive splenomegaly.

METHODS

The clinical data of 17 consecutive patients who underwent laparoscopic splenectomy using ARLN (ARLN group) and 26 patients without ARLN guidance (Non-ARLN group) between January 2018 and April 2020 were enrolled. Propensity score matching (PSM) analysis was performed between the patients with and without ARLN guidance at a ratio of 1:1.

RESULTS

Mean intraoperative blood loss was significantly lower in the ARLN-group than in the Non-ARLN group (306.6 ml vs. 462.6 ml, p = 0.047). All the patients in the ARLN-group achieved successful splenic artery dissection, while surgical success was achieved in 12 patients in the Non-ARLN group (p = 0.044). Postoperative hospital stay was significantly longer in the Non-ARLN group (3.8 days vs. 4.5 days, p = 0.040).

CONCLUSIONS

ARLN can provide feasible and accurate intraoperative image guidance, and it could be helpful in the performance of laparoscopic splenectomy for massive splenomegaly.

The usefulness of modified splenic hilum hanging maneuver in laparoscopic splenectomy, especially for patients with huge spleen: a case-control study with propensity score matching

BACKGROUND

Although Laparoscopic splenectomy (LS) have been proven to the standard operation for removal of spleen, the rate of conversion to open surgery is still higher than those of other laparoscopic surgeries, especially for huge spleen. In order to reduce the rate of conversion to open surgery, we had developed LS using modified splenic hilum hanging (MSHH) maneuver: the splenic pedicle was transected en bloc using a surgical stapler after hanging splenic hilum with an atraumatic penrose drain tube.

METHODS

Between January 2005 and December 2019, we retrospectively assessed 94 patients who underwent LS. MSHH maneuver was performed in 37 patients (39.4%). We compared the intra- and postoperative outcomes between patients with or without MSHH maneuver. To adjust for differences in preoperative characteristics and blood examination, propensity score matching was used at a 1:1 ratio, resulting in a comparison of 29 patients per group. Predictive factors of conversion from LS to open surgery were elucidated using the uni- and multi-variate analyses.

RESULTS

After the propensity score matching, blood loss (268 ml vs. 50 ml), the rate of conversion to open surgery (27.6% vs. 0%), and postoperative hospital stays (15 days vs. 10 days) were significantly decreased in patients with MSHH maneuver, respectively. Among 94 patients, 19 patients (20.2%) underwent conversion to open surgery. In multivariate analysis, spleen volume (SV) and LS without MSHH maneuver were independent predictive factors of conversion to open surgery, respectively. Additionally, cut-off value of SV for conversion to open surgery was 802 ml (sensitivity: 0.684, specificity: 0.827, p < 0.001).

CONCLUSIONS

LS using MSHH maneuver seems to be useful surgical technique to improve intraoperative outcomes and reduce the rate of conversion from LS to open surgery resulting in shorten postoperative hospital stay.

Outcomes of Laparoscopic Splenectomy for Treatment of Splenomegaly: A Systematic Review and Meta-analysis

OBJECTIVES

To review the evidence regarding the outcomes of laparoscopic techniques in cases of splenomegaly.

BACKGROUND

Endoscopic approaches such as laparoscopic, hand-assisted laparoscopic, and robotic surgery are commonly used for splenectomy, but the advantages in cases of splenomegaly are controversial.

REVIEW METHODS

We conducted a systematic review using PRISMA guidelines. PubMed/MEDLINE, ScienceDirect, Scopus, Cochrane Library, and Web of Science were searched up to February 2020.

RESULTS

Nineteen studies were included for meta-analysis. In relation to laparoscopic splenectomy (LS) versus open splenectomy (OS), 12 studies revealed a significant reduction in length of hospital stay (LOS) of 3.3 days (p = <0.01) in the LS subgroup. Operative time was higher by 44.4 min (p < 0.01) in the LS group. Blood loss was higher in OS 146.2 cc (p = <0.01). No differences were found regarding morbimortality. The global conversion rate was 19.56%. Five studies compared LS and hand-assisted laparosocpic splenectomy (HALS), but no differences were observed in LOS, blood loss, or complications. HALS had a significantly reduced conversion rate (p < 0.01). In two studies that compared HALS and OS (n = 66), HALS showed a decrease in LOS of 4.5 days (p < 0.01) and increase of 44 min in operative time (p < 0.01), while OS had a significantly higher blood loss of 448 cc (p = 0.01). No differences were found in the complication rate.

CONCLUSION

LS is a safe approach for splenomegaly, with clear clinical benefits. HALS has a lower conversion rate. Higher-quality confirmatory trials with standardized splenomegaly grading are needed before definitive recommendations can be provided. Prospero registration number: CRD42019125251.

Are there any limits for laparoscopy in splenomegaly? Our experience

Laparoscopic splenectomy in the case of massive or supermassive splenomegaly has been associated with higher conversion rates and morbidity. The purpose of our study is to evaluate the feasibility and safety of laparoscopic splenectomy for massive spleens and to identify if there are limits beyond which the laparoscopic approach is not recommended in massive and supermassive spleens. This is a retrospective study of 93 consecutive laparoscopic splenectomies in adult patients performed by a single surgeon, from January 2008 to December 2017. The data collected included the patient's age, sex, ASA, spleen weight, volume and dimension, type of disease, hospital stay, surgical technique, operative time. Median splenic weight was 400 g (range 65-3800 g) and median volume was 1365 cc (range 600-3800). Median operative time was 120 min and the overall conversion rate was 5.4%. Globally, 52 patients (55.9%) had a normal-weight spleen, 25 (26.9%) had massive and 16 (17.2%) had supermassive splenomegaly. In splenomegaly group (n = 41), patient's age, percentage of malignant diagnosis, spleen weight, anteroposterior (AP), medio-lateral (ML) and craniocaudal (CC) diameter, surgical time and conversion rate were significantly higher compared to normal-weight spleen patients. None of the normal-weight spleen patients underwent open conversion, while 5 patients among 41 splenomegalic cases underwent laparotomic conversion (12.2%). Comparing massive and super-massive patients, the latter showed longer operative time and hospital length of stay, and higher conversion rate. We identified as significant cut-off limits for higher conversion risk a spleen weight ≥ 1300 g and a spleen CC diameter ≥ 22 cm. In our experience laparoscopy was the gold standard in the case of spleen weight and diameter equal to or less than 1300 g and 22 cm, but it was safe and feasible also in the case of larger spleens, taking into account the greater risk of conversion.

Visceral adiposity is an independent risk factor for high intra-operative blood loss during living-donor liver transplantation; could preoperative rehabilitation and nutritional therapy mitigate that risk?

BACKGROUND & AIMS

Blood loss during liver transplantation (LT) is one of the major concerns of the transplant team, given the potential negative post-transplant outcomes related to it. Blood loss was reported to be higher in certain body compositions, such as obese patients, undergoing LT. Therefore, we aimed to study the risk factors for high blood loss (HBL) during adult living donor liver transplant (ALDLT) including the body composition markers; visceral-to-subcutaneous adipose tissue area ratio (VSR), skeletal muscle index and intramuscular adipose tissue content. In June 2015, an aggressive perioperative rehabilitation and nutritional therapy (APRNT) program was prescribed in our institute for the patients with abnormal body composition.

METHODS

We retrospectively analyzed 394 patients who had undergone their first ALDLT between 2006 and 2019. Risk factors for HBL were analyzed in the total cohort. Differences in blood loss and risk factors were analyzed in relation to the APRNT.

RESULTS

Multivariate risk factor analysis in the total cohort showed that a high VSR (odds ratio (OR): 1.98, 95% confidence interval (CI): 1.19-3.29, P = 0.009), was an independent risk factor for HBL during ALDLT, as well as a history of upper abdominal surgery, simultaneous splenectomy and the presence of a large amount of ascites. After the introduction of the APRNT, a significantly lower blood loss was observed during the ALDLT recipient operation (P = 0.003). Moreover, the significant difference in blood loss observed between normal and high VSR groups before the application of the APRNT (P < 0.001), was not observed with the APRNT (P = 0.85). Likewise, before the APRNT, only high VSR was a risk factor for HBL by multivariate analysis (OR: 2.34, CI: 1.33-4.09, P = 0.003). Whereas with the APRNT, high VSR was no longer a significant risk factor for HBL even by univariate analysis (OR: 0.89, CI: 0.26-3.12, P = 0.86).

CONCLUSION

Increased visceral adiposity was an independent risk factor for high intraoperative blood loss during ALDLT recipient operation. With APRNT, high VSR was not associated with high blood loss. Therefore, APRNT might have mitigated the risk of high blood loss related to high visceral adiposity.

Evaluation of the usefulness of laparoscopy in the diagnosis and treatment of adnexal pathologies in the pediatric population

INTRODUCTION

The current trend in adnexal surgery in children is to minimize the invasiveness of diagnostic and therapeutic procedures, reduce the number of complications and reduce the risk of infertility.

AIM

Evaluation of the usefulness and effectiveness of laparoscopy in diagnostics and treatment of pathological lesions of adnexa in the pediatric population and evaluation of the correlation of imaging with the intraoperative diagnosis during laparoscopy.

MATERIAL AND METHODS

The study included 89 patients aged 0-18 years (mean: 12.62) who underwent an emergency or elective laparoscopic procedure due to the suspicion of adnexa pathology in the imaging tests or in which intraoperative pathology of the adnexa was found without previous suspicion of these changes in the imaging tests. Patients were divided into 2 groups according to the procedure (emergency or elective) and into 4 age groups.

RESULTS

The most frequent postoperative diagnosis was an adnexal cyst and ovarian tumor. The ratio of malignant to benign lesions was 0.087. In 32.58% of patients appendix pathology was found. Coexistence of adnexa and appendix pathology was statistically significantly more frequent in patients undergoing emergency surgery (p = 0.013). There was no correlation between the size of the tumor or ovarian cyst and the occurrence of adnexal torsion, and no correlation between the size of the tumor and the degree of torsion of the adnexa. Three conversions were performed. The average operation time was 63.7 min.

CONCLUSIONS

Laparoscopic diagnosis and treatment of adnexal pathology seems to be safe due to the low percentage of perioperative complications. It shows high sensitivity in recognizing adnexal pathologies and other defects.

Intraoperative hemorrhage and increased spleen volume are risk factors for conversion to open surgery in patients undergoing elective robotic and laparoscopic splenectomy

Objectives

Minimal invasive surgery is one of the most popular treatment approaches which is safe and effective in experienced hands in different clinical practices. In the present study, we aimed to evaluate the risks factors for conversion to open splenectomy and the performance of indirect hilum dissection technique.

Material and Methods

A total of 56 patients who underwent laparoscopic or robotic splenectomy for isolated spleen diseases were included into the study. Patients were divided into two groups as robotic or laparoscopic splenectomy (Group 1; n= 48) and conversion to open surgery (Group 2; n= 8). Patients were retrospectively evaluated according to clinical, biochemical, hematological and microbiological parameters and morbidity.

Results

No statistically significant difference was found between the groups in terms of age, gender, body mass index (BMI), ASA score, co-morbid disease, operation time, hospital stay, follow-up period, accessory spleen, diagnosis, international normalized ratio (INR), red cell distribution width (RDW), platelet distribution width (PDW), platelet to lymphocyte ratio (PLR), neutrophil to lymphocyte ratio (NLR), reapplication, splenosis, surgical site infection, vascular thrombus and incisional hernia (p> 0.05). On the other hand, intraoperative splenic hilum hemorrhage and increased spleen size (p <0.05) were higher in the conversion to open surgery group. In logistic regression analysis, intraoperative splenic hilum hemorrhage (B= 4.127) (OR= 61.974) (95% CI= 3.913-981.454) (p= 0.003) and increased spleen volume (B= 3.114) (OR= 22.509) (95% CI= 1.818-278.714) (p= 0.015) were found as risk factors for conversion to open surgery.

Conclusion

Intraoperative hemorrhage from the splenic hilum and increased spleen volume (> 400 cm3) are risk factors for conversion to open splenectomy in patients undergoing elective robotic or laparoscopic splenectomy. Indirect splenic hilum dissection can decrease intraoperative hemorrhage and conversion to open surgery.

Laparoscopic Splenectomy Versus Open Splenectomy In Massive and Giant Spleens: Should we Update the 2008 EAES Guidelines?

The objective of this study was to derive some useful parameters to define the feasibility of laparoscopic splenectomy (LS) in massive [spleen longitudinal diameter (SLD)>20 cm] and giant spleens (SLD>25 cm). Between December 1996 and May 2017, 175 patients underwent an elective splenectomy. A laparoscopic approach was used in 133 (76%) patients. Massive spleens were treated in 65 (37.1%) patients, of which 24 were treated laparoscopically. In this subset of massive spleens, the results of laparoscopic splenectomy in massive spleens (LSM) and open splenectomy in massive spleens (OSM) were compared. The clinical outcome of a subgroup of patients with giant spleens was also analyzed. The LSM group resulted in significant longer operative times (143±31 vs. 112±40 min; P=0.001), less blood loss (278±302 vs. 575±583 mL; P=0.007), and shorter hospital stay (6±3 vs. 9±4 d; P=0.004). No conversions were experienced in the LSM group, and the morbidity rate was similar in both the LSM and OSM groups (16.6% vs. 20%; P=0.75). When considering the subset of 9 LSM patients and 26 OSM patients with giant spleens, the same favorable tendency of the laparoscopic group as regards surgical conversion, blood loss, and hospital stay was maintained. The laparoscopic approach can be successfully proposed in the presence of massive splenomegaly also after a careful preoperative evaluation of the expected abdominal "working space." In experienced hands, LS is safe, feasible, and associated with better outcomes than open splenectomy for the treatment of massive and giant spleen, with a maximum SLD limit of 31 cm.

Is ITP really a desirable indication for teaching laparoscopic splenectomy? Cohort study

Background: We aimed to evaluate the outcomes of laparoscopic splenectomy (LS) in patients with immune thrombocytopenic purpura (ITP) compared with operated for other indications. Methods: Retrospective cohort study of patients who underwent LS in 1998-2017. Group 1 consisted of 256 patients operated for ITP, and Group 2 of 231 operated for other indications. Primary outcome was procedure difficulty. Secondary was perioperative course (30 days of surgery). Results: Patients in Group 1 were younger (p < .001) with lower ASA (p < .001). The spleen was larger in Group 2 (p < .001). Operative time was longer in Group 2 [110 (80-150) vs. 90 (65-115) min; p < .001)]. Intraoperative blood loss was greater in Group 2 (p < .001). Conversions were higher in Group 2 (4.76 vs. 6.93%, p = .037), as were intraoperative complications (7.79 vs. 3.91%, p = .048). Morbidity, reoperations and mortality did not differ between groups (respectively, p = .899, .697, and .999). Median length of stay was similar (p = .211). Among the first 10 LSs performed by trainees, 63.66% were done for ITP. Later (after 11+ procedures) this dropped to 48.12% (p = .002). Conclusions: ITP may be a preferred indication for surgeons training for LS. Patients' characteristics and intraoperative factors allow an expectation for a relatively easy and hassle-free operation in those patients.

Fast-track care with intraoperative blood salvage in laparoscopic splenectomy

Fast-track surgery is claimed to reduce medical morbidity, eliminate the hospitalization needs, and shorten the convalescence period. Intraoperative bleeding as the main complication is also the primary cause of conversion from laparoscopic to open splenectomy. Intraoperative blood salvage can reduce transfusion requirements, decrease the conversion rate to open, and promote fast-tracking in laparoscopic splenectomy (LS). From November 2007 through December 2016 we collected medical data of 115 LS patients. There were three groups: 54 patients receiving routine care (we marks them as Group RT), 33 patients with fast-track care (Group FT), and 28 receiving fast-track care receiving intraoperative splenic blood salvage and autotransfusion (Group FT + ISBS). These medical data are comprised of included three phases (pre-, intra-, and postoperative). There were significant differences (P < 0.05) between RT, FT, and FT + ISBS groups. The hemoglobin level in Group FT + ISBS was significantly higher than in Group RT and Group FT. Comparing the duration of hospital stay of 3 groups, Group RT stayed for a significantly longer time than Group FT and Group FT + ISBS, Group FT + ISBSmuch shorter than Group FT. Comparing the hospitalization expense, GroupFT + ISBS significantly expended less than Group RT and Group FT. Our study shows that laparoscopic splenectomy with fast-track care is feasible, effective, and safe for patients who require splenectomy. Fast-tracking with intraoperative blood salvage improved the fast-track laparoscopic splenectomy procedure.

Prediction of Technical Difficulties in Laparoscopic Splenectomy and Analysis of Risk Factors for Postoperative Complications in 468 Cases

Prediction of intraoperative difficulties may be helpful in planning surgery; however, few studies explored this issue in laparoscopic splenectomy (LS). We performed retrospective analysis of consecutive 468 patients undergoing LS from 1998 to 2017 (295 women; median age 47 years). The patients were divided into difficult LS and control groups. The inclusion criteria for difficult LS were operative time ≥mean + 2SD; intraoperative blood loss ≥500 mL, intraoperative adverse events (IAE), conversion. Primary outcomes were risk factors for difficult splenectomy and secondary outcomes for perioperative morbidity. Fifty-six patients were included in the difficult LS group (12%). Spleens ≥19 cm and higher participation of younger surgeons in consecutive years were predictive for difficult splenectomy. Age ≥53 years and diagnosis other than idiopathic thrombocytopenic purpura (ITP) were independent risk factors of spleen ≥19 cm. The perioperative morbidity was 8.33%; its OR was increased only by blood loss and IAEs. Only blood loss significantly increased serious morbidity. Male sex, spleens ≥19 cm, and IAEs were independent risk factors for intraoperative hemorrhage. Spleen length ≥19 cm was a risk factor for difficult LS and intraoperative hemorrhage. Diagnoses other than ITP in patients aged ≥53 years with ≥19 cm spleens are predictive for intraoperative difficulties and perioperative complications.

Relationship between response to lusutrombopag and splenic volume

AIM

To assess the correlation between the efficacy of lusutrombopag and clinical characteristics in patients with chronic liver disease.

METHODS

In this retrospective, multicenter study, which conducted at four locations in Japan, 50 thrombocytopenic patients with chronic liver disease were enrolled. All patients received oral lusutrombopag (3.0 mg/d for 7 d) for chronic liver disease. We assessed the increase in platelet count after the trial drug administration. A treatment response was defined as a platelet count ≥ 5 × 104/μL and an increased platelet count ≥ 2 × 104/μL from baseline after drug administration. We evaluated the response to lusutrombopag compared to baseline clinical characteristics in patients with chronic liver disease.

RESULTS

The numbers of responders and non-responders were 40 (80.0%) and 10 (20.0%), respectively. The patients were divided into a responder and non-responder group, and we added factors that may correspond to successful treatment with lusutrombopag. Splenic volume and body weight were lower in the responder group than in the non-responder group. White blood cell count and hemoglobin level were higher in responders compared with non-responders. Using a logistic regression model to assess the relationship between response to lusutrombopag and clinical characteristics, multivariate analysis confirmed that splenic volume was an independent factor that predicted the response of platelet counts (P = 0.025; odds ratio = 11.2; 95% confidence interval: 1.354-103.0). Splenic volume negatively correlated to changes in platelet count (r = -0.524, P = 0.001).

CONCLUSION

Splenic volume influences the change in platelet counts after administration of lusutrombopag in patients with chronic liver disease.

Efficacy and safety of laparoscopic splenectomy and esophagogastric devascularization for portal hypertension: A single-center experience

Many patients in China have portal hypertension secondary to liver cirrhosis. Splenectomy and devascularization have become an efficacious surgical procedure for portal hypertension, and has been recommended in China as the first choice for the treatment of portal hypertension for a long time. As a result of advances in laparoscopic equipment and techniques, splenectomy and esophagogastric devascularization have been carried out with laparoscope.From January 2012 to December 2017, 453 patients who were diagnosed with portal hypertension and serious gastroesophageal varices received surgical management in our institution. 250 patients chose laparoscopic splenectomy and esophagogastric devascularization and 203 underwent open splenectomy and esophagogastric devascularization.We retrospectively analyzed the perioperative data and follow-up data of these patients. The operation time of laparoscopic group was longer than open group (P ≤ .001). Intraoperative blood loss was less (P ≤ .001), the passing of flatus was earlier (P = .042), and postoperative hospital stay was shorter (P = .001) in the laparoscopic group. During postoperative follow-up of 4 to 75 months, the incidence of esophagogastric variceal rebleeding, encephalopathy, and secondary liver cancer showed no significant differences.Laparoscopic splenectomy and esophagogastric devascularization were safe and more effective than open surgery for portal hypertension and gastroesophageal varices.

Splenectomy in Gaucher Disease: A Call for Minimally Invasive Surgery

OBJECTIVE

The objective of this article was to demonstrate that Gaucher disease (GD) patients with refractory hypersplenism and massive splenomegaly may successfully undergo hand-assisted laparoscopic splenectomy (HALS).

METHODS

This was a retrospective audit conducted at the Gaucher clinic at a national referral center over a 10-year period.

PATIENT POPULATION

This study included 8 GD patients who underwent hand-assisted or conventional laparoscopic splenectomy for massive or complicated splenomegaly between the years 2007 and 2017.

RESULTS

Seven patients underwent an elective HALS procedure because of refractory hypersplenism, whereas 1 patient underwent an urgent conventional laparoscopic splenectomy because of torsion of a wandering spleen. Only 1 patient required conversion to open surgery because of multiple adhesions from a previous partial splenectomy. The mean weight of the removed spleens was 2373 g (range, 480 to 4900 g), mean craniocaudal length of the removed spleens was 25 cm (range, 20 to 33.5 cm), and mean operating time was 150 minutes (range, 96 to 280 min). Postoperative complications were limited to 2 patients and included thrombosis of the splenic vein stump in 1 patient, and propagation of a preoperative splenic vein thrombus to the portal system, as well as an accumulation of an intra-abdominal hematoma in another patient. There was no mortality. Mean length of hospital stay was 5 days (range, 2 to 11 d).

CONCLUSION

HALS for GD patients with refractory hypersplenism and massive splenomegaly is safe and feasible in experienced hands.

Challenges and Results of Laparoscopic Splenectomy for Hematological Diseases in a Developing Country

Introduction

Though, in developed countries, laparoscopy is now a gold standard for splenectomy, we are lacking in this aspect in the eastern world. Splenectomy has mostly been performed by open surgery in our region. This is our effort to introduce laparoscopic splenectomy in our country.

Methods

This is a retrospective cohort study done in patients presenting to hematology and surgery department of our hospital who underwent laparoscopic splenectomy for hematological diseases from January 2013 to December 2016.

Results

There were 50 patients (38 females, 12 males). The diagnoses were idiopathic thrombocytopenic purpura in 31, (steroid/azathioprine-resistant, steroid dependent), hereditary spherocytosis in 9, alpha-thalassemia in 3, beta-thalassemia in 2, autoimmune hemolytic anemia in 4, and isolated splenic tuberculosis in 1. Average platelet counts preoperatively were 62000 ± 11000/mm3 (range 52000-325000/mm3). The mean operative time was 130 ± 49 minutes (range 108-224 min). The mean postoperative stay was 4 ± 2.11 days (range 3-9 days). Laparoscopic splenectomy could be completed in 45 (90%) patients.

Conclusion

Laparoscopic splenectomy could be successfully contemplated in patients with hematological diseases, especially if spleen is normal or only mildly enlarged, and is an advantageous alternative to open splenectomy. Absence of ideal resources has not limited our progress in minimal access approach.

Laparoscopic versus open splenectomy for splenomegaly: the verdict is unclear

BACKGROUND

The benefits of laparoscopic splenectomy (LS) over open splenectomy (OS) for normal-sized spleens have been well documented. However, the role of laparoscopy for moderate and massive splenomegaly is debated.

METHODS

A retrospective review of patients undergoing elective splenectomy at one institution from 1997 to 2017 was conducted. Moderate and massive splenomegaly was defined as splenic weight of 500-1000 g and greater than 1000 g, respectively. We performed a 1:2 matching of laparoscopic to open splenectomy to control for differences in splenic weight. Differences in perioperative morbidity (infection, thromboembolism, reoperation, readmission), intraoperative factors (blood loss, operative time), length of stay, and mortality were examined.

RESULTS

A total of 491 elective splenectomies were identified. 268 cases were for splenic weights greater than 500 g. After a 1:2 matching of LS:OS, we identified 22 LS and 44 matched OS for moderate splenomegaly. The LS group had longer mean operative times (178 vs. 107 min, p < 0.01), with similar length of stay and blood loss. For massive splenomegaly, 26 LS were identified and matched to 52 OS. LS had longer mean operative times (171 vs. 112 min, p < 0.01) and higher readmission rates (27% vs. 6%, p < 0.05). Other factors and outcomes did not differ between LS and OS for moderate or massive splenomegaly. The conversion rate for LS was higher for massive versus moderate splenomegaly, but was not statistically significant (35% vs. 14%, p = 0.09).

CONCLUSIONS

LS for moderate and massive splenomegaly is associated with longer operative times. Other perioperative outcomes were comparable to OS, with no demonstrated benefits for LS. Although LS may be a feasible approach to moderate and massive splenomegaly, its benefits require further clarification in this patient population.

Predictors of portal and splenic vein thrombosis after laparoscopic splenectomy: a retrospective analysis of a single-center experience

PURPOSE

Laparoscopic splenectomy (LS) has become the standard operative approach for splenectomy. Portal or splenic vein thrombosis (PSVT) is a serious and common complication after LS, and lethal complications of PSVT can occur when the portal vein is completely occluded by portal vein thrombosis (PVT). We aimed to clarify the predictors of PSVT after LS and to determine which of them were also predictors of PVT.

METHODS

A total of 56 consecutive patients who underwent elective LS were enrolled in this study. The patients were divided into two groups based on the presence or absence of PSVT after LS. In addition, patients with PSVT were divided into two groups: a PVT group and a non-PVT group. The preoperative and intraoperative clinical data were compared among the groups.

RESULTS

Thirty (53.6%) patients developed PSVT. The splenic vein diameter was the most useful predictor for the development of PSVT, and 10 mm was an accurate splenic vein diameter cut-off value for use as a predictive factor for PSVT. In addition, the splenic vein diameter was the most useful predictor of the development of PVT from splenic vein thrombosis (SVT), and 14 mm was found to be an accurate cut-off value.

CONCLUSION

PSVT is a common postoperative complication that is identified on enhanced computed tomography. The splenic vein diameter is not only a predictor of PSVT but also of the development of PVT from SVT.

The Best Single Measurement for Assessing Splenomegaly in Patients with Cirrhotic Liver Morphology

RATIONALE AND OBJECTIVES

There is little agreement within the radiology literature as to the best single measurement for assessing splenomegaly. In this study, we evaluate the correlation of multiple unidirectional measurements of the spleen with splenic volume in patients with cirrhotic liver morphology on computed tomography (CT).

MATERIALS AND METHODS

Splenic volume was retrospectively calculated from CT examinations of 179 adult patients, 47 of whom were approved as renal donors, and 132 of whom were referred for various other indications, and were found to have cirrhotic liver morphology on CT. Seven unidimensional measurements (long-axis, cranial-caudal, width, and four measures of thickness) of each spleen were evaluated to identify which most closely correlated with the calculated volume.

RESULTS

The splenic width had the best correlation with splenic volume for mild-to-moderate splenomegaly, and the splenic cranial-caudal measurement had the best correlation with splenic volume for massive splenomegaly. Receiver operating characteristic analysis demonstrates that a splenic width measurement of approximately 10.5 cm has a sensitivity of 89% and a specificity of 78% for mild-to-moderate splenomegaly, and a cranial-caudal measurement of 14.6 cm has a sensitivity of 92% and a specificity of 91% for massive splenomegaly.

CONCLUSIONS

A splenic width threshold of 10.5 cm is the most sensitive (89%) and specific (78%) single measurement for mild-to-moderate splenomegaly in patients with cirrhotic liver morphology, whereas a cranial-caudal height threshold of 14.6 cm is the most sensitive (92%) and specific (91%) single measurement for massive splenomegaly.

Hand-assisted laparoscopic Hassab's procedure for esophagogastric varices with portal hypertension

Background

Laparoscopic surgery for patients with portal hypertension is considered to be contraindicated because of the high risk of massive intraoperative hemorrhaging. However, recent reports have shown hand-assisted laparoscopic surgery for devascularization and splenectomy to be a safe and effective method of treating esophagogastric varices with portal hypertension. The aim of this study is to evaluate the efficacy of hand-assisted laparoscopic devascularization and splenectomy (HALS Hassab’s procedure) for the treatment of esophagogastric varices with portal hypertension.

Case presentation

From 2009 to 2016, seven patients with esophagogastric varices with portal hypertension were treated with hand-assisted laparoscopic devascularization and splenectomy in our institute. Four men and three women with a median age of 61 years (range 35–71) were enrolled in this series. We retrospectively reviewed the medical records for the perioperative variables, postoperative mortality and morbidity, and postoperative outcomes of esophagogastric varices. The median operative time was 455 (range 310–671) min. The median intraoperative blood loss was 695 (range 15–2395) ml. The median weight of removed spleen was 507 (range 242–1835) g. The conversion rate to open surgery was 0%. The median postoperative hospital stay was 21 (range 13–81) days. During a median 21 (range 3–43) months of follow-up, the mortality rate was 0%. Four postoperative complications (massive ascites, enteritis, intra-abdominal abscess, and intestinal ulcer) were observed in two patients. Those complications were treated successfully without re-operation. Esophagogastric varices in all patients disappeared or improved. Bleeding from esophagogastric varices was not observed during the follow-up period.

Conclusion

Although our data are preliminary, hand-assisted laparoscopic devascularization and splenectomy proved an effective procedure for treating esophagogastric varices in patients with portal hypertension.

Laparoscopic Splenectomy for Massive Splenomegaly: Does Size Matter?

BACKGROUND

Laparoscopic splenectomy (LS) has become the most common approach for elective splenectomy, but use of LS for patients with massive splenomegaly (MS) remains controversial. By the 2008 European guidelines, LS for MS (spleen size >20 cm) is generally not recommended.

METHODS

We performed a retrospective analysis of 229 consecutive patients undergoing LS, hand-assist (HALS), and open splenectomy (OS) at our institution from January 1, 1995 to December 2016. Eighty-six (38%) had MS. Patient demographics, comorbidities, operative details, and outcomes were analyzed.

RESULTS

Of 86 patients with MS, 27 (31%) underwent LS, 12 (14%) HALS, and 47 (55%) OS. No significant difference was revealed in patient demographics, comorbidities, American Society of Anesthesiologists class, and spleen size (24.2 cm vs. 23.7 cm vs. 26.6 cm, P = .06). Benign spleen diseases (23), malignancy (57%), and miscellaneous (20%) were indications for surgery. The mean operative time and estimated blood loss in LS, HALS, and OS were 153, 168, and 131 minutes (P = .17) and 100, 162, and 278 mL (P = .24), respectively. Three patients (11.1%) with LS and 1 (8.3%) with HALS required conversion to OS for different reasons (spleen size, technical difficulties, bleeding). Morbidity was similar in all three groups (P = .99). One mortality (1.1%) was noted after OS. Six (7%) patients in the LS group and three (3.5%) in the OS group developed postsplenectomy thrombosis of splenic, mesenteric, and portal veins. Length of stay was shorter in patients with LS and almost reached clinical significance (3.2 vs. 4.9 vs. 5.2 days; P = .06).

CONCLUSION

LS is safe, feasible, and associated with shorter hospital stay than HALS and OS for MS.

The THUNDERBEAT system for tissue dissection and vascular control in laparoscopic splenectomy

The advent of new energy sources for hemostasis has greatly facilitated advanced laparoscopic procedures. We describe a straightforward technique of laparoscopic splenectomy (LS) accomplished using the THUNDERBEAT™ system (TS) (Olympus Medical Systems Corp., Tokyo, Japan) as the sole means of tissue dissection and hemostasis in two patients aged 19 and 6 years, respectively. The specimens were removed intact via a Pfannenstiel incision. Total operative time was 165 and 150 min, and length of hospital stay was three and 4 d, respectively. The TS is an appealing and reliable alternative to currently available energy devices, allowing fast dissection and secure hemostasis during laparoscopic splenectomy.

Surgery for massive splenomegaly

BACKGROUND

Splenectomy for massive splenomegaly (spleen weight more than 1·5 kg) is commonly believed to be hazardous and to provide poor palliation. The aim of this cohort study was to investigate these issues and examine the many definitions of massive splenomegaly to see whether a better tool might be proposed for preoperative evaluation of these patients.

METHODS

Morbidity and long-term outcomes were assessed in consecutive patients. Relief of pressure-volume-related symptoms and sustainable independence from transfusion in patients were used to ascertain the impact of splenectomy.

RESULTS

Splenectomy was performed in 56 patients, mainly for non-Hodgkin's lymphoma and myeloproliferative diseases. Median spleen weight was 2·3 (range 1·5-6·0) kg. Mortality at 180 days was zero, and the postoperative complication rate was 25 per cent (17 complications in 14 patients). At 2 years, relief of pain was maintained in 33 of 34 patients, with sustained independence from transfusion in 15 of 19 patients with anaemia and nine of 11 with thrombocytopenia. Spleen weight correlated negatively with BMI (P = 0·036).

CONCLUSION

Splenectomy for massive splenomegaly is safe and provides effective palliation. Provisional cut-off points relating to spleen size and BMI help to identify patients benefiting from a splenectomy, even those in a critical state.

Laparoscopic versus open splenectomy and devascularization for massive splenomegaly due to portal hypertension

Although the clinical benefit of laparoscopic splenectomy and devascularization (LSD) has been elaborated in many studies, its application in massive splenomegaly remains controversial. We conducted a retrospective research to assess the curative efficacy of LSD for massive splenomegaly due to portal hypertension. Forty-seven patients with massive splenomegaly due to portal hypertension were enrolled in this study, and divided into two groups. Twenty-one patients underwent open splenectomy and devascularization (OSD) from June 2010 to October 2012 (OSD group). From March 2013 to February 2015, LSD was performed on 26 patients (LSD group). Perioperative variables were analyzed. Compared to OSD, LSD was associated with less blood loss (241.9±110.0 mL vs. 319.0±139.5 mL, P<0.05), more rapid resumption of oral diet (2.46±0.95 days vs. 3.76±1.09 days, P<0.05), and shorter postoperative hospital stay (5.35±1.65 days vs. 7.24±1.55 days, P<0.05). It was concluded that for patients with massive splenomegaly due to portal hypertension, LSD is feasible and as safe as OSD.

Can We Predict Immediate Outcome After Laparoscopic Splenectomy for Splenomegaly? Multivariate Analysis of Clinical, Anatomic, and Pathologic Features After 3D Reconstruction of the Spleen

The laparoscopic approach is the treatment of choice for splenectomy, but its definitive role in splenomegaly is controversial. Factors that influence immediate outcome are clinical, anatomic, and pathological. The aim of this study was to evaluate the predictive factors on outcome after laparoscopic splenectomy in splenomegaly. We reviewed patients submitted to laparoscopic splenectomy with a final spleen weight superior to 700 g. Three-dimensional reconstruction of the spleen was performed, and spleen volume and diameters were measured. Multivariate analysis showed that factors that predicted for conversion were mediolateral diameter ( P = .039, RR: 1.43) and platelet count ( P < .05, RR: 1). For intraoperative bleeding, the predictive factor was spleen volume ( P < .03, RR: 1.003). Anteroposterior spleen diameter was related to operative time ( P = .011), and the factor related to postoperative morbidity was age ( P = .049, RR: 0.941). Local anatomy and clinical factors affect surgical outcome in laparoscopic splenectomy for splenomegaly. These factors should be taken into account when planning this kind of procedure.

Massive splenomegaly in children: laparoscopic versus open splenectomy

Background and Objectives:

Laparoscopic splenectomy for massive splenomegaly is still a controversial procedure as compared with open splenectomy. We aimed to compare the feasibility of laparoscopic splenectomy versus open splenectomy for massive splenomegaly from different surgical aspects in children.

Methods:

The data of children aged <12 years with massive splenomegaly who underwent splenectomy for hematologic disorders were retrospectively reviewed in 2 pediatric surgery centers from June 2004 until July 2012.

Results:

The study included 32 patients, 12 who underwent laparoscopic splenectomy versus 20 who underwent open splenectomy. The mean ages were 8.5 years and 8 years in the laparoscopic splenectomy group and open splenectomy group, respectively. The mean operative time was 180 minutes for laparoscopic splenectomy and 120 minutes for open splenectomy. The conversion rate was 8%. The mean amount of intraoperative blood loss was 60 mL in the laparoscopic splenectomy group versus 110 mL in the open splenectomy group. Postoperative atelectasis developed in 2 cases in the open splenectomy group (10%) and 1 case in the laparoscopic splenectomy group (8%). Oral feeding postoperatively resumed at a mean of 7.5 hours in the laparoscopic splenectomy group versus 30 hours in the open splenectomy group. The mean hospital stay was 36 hours in the laparoscopic splenectomy group versus 96 hours in the open splenectomy group. Postoperative pain was less in the laparoscopic splenectomy group.

Conclusion:

Laparoscopic splenectomy for massive splenomegaly in children is safe and feasible. Although the operative time was significantly greater in the laparoscopic splenectomy group, laparoscopic splenectomy was associated with statistically significantly less pain, less blood loss, better recovery, and shorter hospital stay. Laparoscopic splenectomy for pediatric hematologic disorders should be the gold-standard approach regardless of the size of the spleen.

Postoperative outcomes after open splenectomy versus laparoscopic splenectomy in cirrhotic patients: a meta-analysis

BACKGROUND

Laparoscopic splenectomy is considered the gold standard for resecting normal-to-moderately bigger spleens in benign conditions, and in addition could be tried for patients with malignant splenic disorders. However, the safety of laparoscopic splenectomy in patients with hypersplenism is not well-known. This study aimed to investigate the efficacy and safety of laparoscopic splenectomy for patients with hypersplenism secondary to liver cirrhosis by comparing with the open splenectomy.

DATA SOURCES

Several databases were searched to identify comparative studies fulfilling the predefined selection criteria from January 2000 to June 2015. The subsequent key words were utilized for browsing "laparoscopy" or "laparoscopic", "open", "splenectomy", and "liver cirrhosis". Studies evaluating laparoscopic and open splenectomy for patients with liver cirrhosis were incorporated. Two evaluators personally strained the title and abstract of each publication. Citations with contemplated compliance within our eligibility criteria underwent compressed review. Meta-analysis was carried out according to the recommendations of the Cochrane Collaboration software (review manager 5.1).

RESULTS

Seven studies containing 509 patients were included. Compared with the open splenectomy group, patients in the laparoscopic splenectomy group had significantly less intraoperative blood loss (MD=210.30; 95% CI: 11.28-409.32; P=0.04), longer operative time (MD=-31.58; 95% CI: -53.34--9.82; P=0.004), shorter duration of postoperative hospital stay (MD=3.41; 95% CI: 2.39-4.43; P<0.01), lower incidence of postoperative complications (RR=1.34; 95% CI: 0.88-2.01; P=0.17), and decreased liver damage [ALT (MD=8.52; 95% CI: 0.19-16.85; P=0.05) and total bilirubin (MD=5.12; 95% CI: 0.37-9.87; P=0.03)].

CONCLUSION

Hypersplenism secondary to cirrhosis and portal hypertension should not be a contraindication for laparoscopic splenectomy.

REDUCE PORT LAPAROSCOPIC SPLENECTOMY FOR GIANT EPITELIAL CYST

BACKGROUND

Delaitre and Maignien performed the first successful laparoscopic splenectomy in 1991. After that, laparoscopic splenectomy has become one of the most frequently performed laparoscopic solid organ procedures.

AIM

To demonstrate the surgical techique of laparoscopic splenetomy with reduced portals.

METHODS

A reduce port laparoscopic splenectomy was performed by using a 10 mm and two 5 mm trocars. To entered the abdomen a trans-umbilical open technique was done and a 10 mm trocar was placed. A subcostal 5 mm trocar was placed under direct vision at the level of the anterior axillary line and another 5 mm port was inserted at the mid-epigastric region. Once it was completely dissected and freed from all of its attachments the hilum, splenic artery and vein, was clipped with hem-o-lock and divided with scissors. Then an endobag was used to retrieve the spleen after being morcellated trough the umbilical incision.

RESULTS

This technique was used in a 15 years old female with epigastric and left upper quadrant pain. An abdominal ultrasound demonstrated a giant cyst located in the spleen. Laboratory tests findings were normal. The CT scan was also done, and showed a giant cyst, which squeeze the stomach. The patient tolerated well the procedure, with an unremarkable postoperative. She was discharge home 72 h after the surgery.

CONCLUSION

The use of reduce port minimizes abdominal trauma and has the hypothetical advantages of shorter postoperative stay, greater pain control, and better cosmesis. Laparoscopic splenectomy for giant cysts by using reduce port trocars is safe and feasible and less invasive.

Efficacy and surgical procedures of preoperative splenic artery embolization for laparoscopic splenectomy of a massive splenomegaly: A case report

•

The combination of embolization of the splenic artery and continuous epinephrine infusion to reduce the spleen volume was highly effective.

•

New technique of laparosopic splenolectomy for massive splenomegaly.

•

Spleen volume started to decrease immediately after the onset of intravenous infusion of low-dose epinephrine.

Here, we describe the case of a 58-year-old woman diagnosed with massive splenomegaly with a malignant lymphoma that had a maximum diameter of 24 cm. Splenectomy was indicated because of thrombocytopenia and abdominal distention. Therefore, a balloon catheter was inserted preoperatively through the splenic artery for embolization and continuous infusion to reduce the spleen volume. It enabled easy handling of the spleen and minimized bleeding. The volume of the spleen was estimated at 1896 g through the skin incision, as measured by volumetric computed tomography; thus, laparoscopy seemed difficult. However, the surgery was successfully performed only with laparoscopic surgery, and the volume of the resected spleen was 1020 g. This preoperative preparation is an effective alternative to laparoscopic removal of a huge splenomegaly.

Laparoscopic Splenectomy with Technical Standardization and Selection Criteria for Standard or Hand-Assisted Approach in 390 Patients with Liver Cirrhosis and Portal Hypertension

BACKGROUND

Laparoscopic splenectomy (LS) is still challenging in patients with liver cirrhosis and portal hypertension. This study was designed to establish safe and less invasive LS in patients with liver cirrhosis and portal hypertension.

STUDY DESIGN

We analyzed 390 patients with liver cirrhosis and portal hypertension, who underwent LS between 1993 and 2013. Patients were divided into 3 time periods; early (1993 to 2004, n = 106); middle (2005 to 2008, n = 159); and late (2008 to 2013, n = 125). During the middle time period, standardized technique for LS and selection criteria for hand-assisted LS were adopted. Patients with spleen volume ≥ 1,000 mL by CT volumetry, large perisplenic collateral vessels, and/or Child-Pugh score ≥ 9, underwent hand-assisted LS. During the late time period, the selection criteria were refined and patients with spleen volume ≥ 600 mL underwent hand-assisted LS.

RESULTS

Conversion to open splenectomy decreased (10.4% in the early time period, 1.9% in the middle time period, and 3.2% in the late time period, p = 0.004), median blood loss decreased (300g, 87g, and 98g, respectively, p < 0.001), and the success rate of pure LS tended to improve (87.2%, 89.5%, and 98.0%, respectively, p = 0.110). Mortality was 0% in each time period, Clavien-Dindo grade IIIb or more complications tended to decrease (5.7%, 2.5%, and 0.8%, respectively, p = 0.081), and technique-related complications decreased significantly (10.4%, 3.8%, and 2.4%, respectively, p = 0.014).

CONCLUSIONS

Laparoscopic splenectomy is now a safe and less invasive approach, even in patients with liver cirrhosis and portal hypertension, because of its technical standardization with the refined selection criteria for pure or hand-assisted LS.

Outcomes of Open Splenectomy for Hematologic Malignancy with Splenomegaly: A Contemporary Perspective

Splenectomy for hematologic malignancy (HM) is considered a high-risk procedure, especially in cases of splenomegaly. We analyzed the postoperative course of 82 patients undergoing open splenectomy for HM-related splenomegaly (splenic craniocaudal length 15 cm or greater) in a high-volume center. Primary outcome measures were: perioperative clinical course, rate and severity of postoperative complications (Clavien-Dindo classification), and length of hospital stay. Risk factors analyzed for morbidity and mortality by logistic regression analysis were: gender, age, American Society of Anesthesiologists (ASA)grade, body mass index (BMI), steroidal treatment, preoperative white blood cell count, spleen size, spleen weight, and operative time. The postoperative mortality rate was 1.2 per cent. Only 15.9 per cent of patients required surgical, endoscopic, or radiological intervention after splenectomy (Grade 3 or greater complication). Overall postoperative morbidity rate (as Grade 2 or greater complication) was 52.4 per cent. Surgical complications, mainly bleeding, occurred in 40.2 per cent of patients and 32.9 per cent of patients required blood transfusion. Medical complication rate was 24.4 per cent. Pulmonary disorders were prevalent among medical complications. At multivariate analysis, only ASA score was an independent risk factor for postoperative complications. Open splenectomy can be performed in high-volume centers with low mortality and acceptable morbidity in patients with HM-related splenomegaly, provided that patients at highest risk of postoperative complication (ASA greater than 3) are carefully evaluated.

Management of thrombocytopenia in advanced liver disease

Thrombocytopenia (defined as a platelet count <150×10(9)) is a well-known complication in patients with liver cirrhosis and has been observed in 76% to 85% of patients. Significant thrombocytopenia (platelet count <50×10(9) to 75×10(9)) occurs in approximately 13% of patients with cirrhosis. Thrombocytopenia can negatively impact the care of patients with severe liver disease by potentially interfering with diagnostic and therapeutic procedures. Multiple factors can contribute to the development of thrombocytopenia including splenic platelet sequestration, immunological processes, bone marrow suppression by chronic viral infection, and reduced levels or activity of the hematopoietic growth factor thrombopoietin. The present review focuses on the etiologies and management options for severe thrombocytopenia in the setting of advanced liver disease.

Hand-assisted versus conventional laparoscopic splenectomy: a systematic review and meta-analysis

BACKGROUND

Hand-assisted laparoscopic splenectomy (HALS) has been widely applied for the resection of larger spleens. We conducted a systematic review and meta-analysis to evaluate the safety and feasibility of HALS compared with conventional laparoscopic splenectomy (CLS).

METHODS

A comprehensive literature search in MEDLINE, EMBASE and Cochrane Library databases was performed to compare clinical outcomes of CLS and HALS. Data were extracted by two independent reviewers. Pooled odds ratios and weighted mean differences with 95% confidence intervals were calculated by meta-analytic software.

RESULTS

Nine non-randomized controlled studies for a total of 463 patients were selected to satisfy the inclusion criteria (HALS versus CLS: 170 versus 293, respectively). The groups were similar in operative time, estimated operative blood loss, length of hospital stay, mortality and intraoperative and post-operative complications. There was a significantly reduced conversion rate in the HALS versus CLS group (odds ratio: 2.98; 95% confidence interval 1.28 to 6.93; P = 0.01). Splenic weights in the HALS group were higher than in the CLS group (weighted mean differences: -0.93; 95% confidence interval -1.74 to -0.11; P = 0.03).

CONCLUSION

HALS may be preferable to CLS for the treatment of patients with enlarged spleens. The result needs to be certified by further random controlled trials.

Laparoscopy in elective and emergency management of ovarian pathology in children and adolescents

INTRODUCTION

Ovaries are one of the most common locations of tumor masses in children. Some of them require surgery due to the risk of malignancy or necrosis. This organ seems to be ideal for the laparoscopic approach.

AIM

To evaluate the usefulness of laparoscopy in surgery of lesions located in the ovaries in patients under 18 years of age and assess the risk of changes in the ovaries in girls with acute abdominal symptoms.

MATERIAL AND METHODS

Retrospective evaluation of hospital records of the period 1996-2012 from a single hospital was performed. 105 laparoscopic procedures of ovarian pathology in patients aged 0-18 (mean: 13.5) years were reviewed. The overall sample was divided into groups depending on the indication and mode of surgery. Group I: elective or emergency surgery, imaging findings of ovarian cysts bigger than 5 cm or causing pain. Group II: elective surgery, the ovarian tumor visible in imaging (solid mass or mixed). Group III: treatment for acute abdomen, without visible ovarian pathology in the preoperative imaging studies. Group IV: elective treatment of other indications, incidental finding.

RESULTS

There were no deaths or major complications. There were no conversions. Average length of hospital stay after surgery was 2.5 days. The risk of appendicitis in patients referred for surgery due to ovarian cysts visualized in ultrasound, in the factual absence of ovarian pathology (false positive ultrasound), in the presented material was 5.2%. The risk of lesions in the ovaries in patients operated on due to acute abdominal pain, with no findings in the pre-operative ultrasound (false negative ultrasound), in the presented material was 7.4%. The risk of coexistence of changes in the ovaries with appendicitis found during the procedure due to acute abdominal pain in the study group was 6%.

CONCLUSIONS

The laparoscopic treatment for ovarian masses is safe and efficient. The risk of wrong preoperative diagnosis (ovary mass vs. appendicitis) is in any direction between 5 and 8%, which is a number large enough to be taken into consideration when surgical training and legislation is concerned.