Safety Of Laparoscopic Surgery Research Articles

Laparoscopic-Assisted Fertility-Sparing Surgery for Growing Teratoma Syndrome of the Ovary: Experience From a Tertiary Center

Study ObjectiveThe main objective is to evaluate the feasibility of laparoscopic fertility-sparing surgery in women with growing teratoma syndrome. DesignRetrospective cohort study. SettingChinese tertiary university hospital. PatientsPatients with growing teratoma syndrome who underwent fertility-sparing surgery between January 2015 and August 2023. InterventionsBaseline characteristics and surgical outcomes were evaluated, including clinical information, surgical procedures, operative time, intraoperative blood loss, complications, length of hospital stay, and follow-up information. Measurement and Main ResultsTwenty-six patients with ovarian growing teratoma syndrome underwent fertility-sparing surgery: 12 had laparoscopic surgery and 14 underwent laparotomic surgery. In the laparoscopic group, the median age of the patients during initial management of immature teratoma or mixed malignant ovarian germ cell tumor was 14.0 years (interquartile range: 13.0-24.5 years). Eleven patients were nulliparous. The primary ovarian tumor was pure immature teratoma in 10 patients and mixed ovarian germ cell tumor in 2 patients. Complete laparoscopic tumor resection was achieved in 11 patients. Patients in laparoscopic group had shorter median operative time (76.5 vs 180.0 minutes, p = 0.001), lower estimated blood loss (20.0 vs 400.0 ml, p < 0.001), decreased postoperative hospital stay (2.0 vs 7.0 days, p < 0.001), compared with laparotomic surgery. There was no conversion to laparotomy and no perioperative complications. Histological examination confirmed mature teratoma in all cases. During a median follow-up of 21.9 months (interquartile range: 7.6-44.9 months), 11 patients were alive without disease and 1 was alive with disease. One pregnancy was achieved postoperatively. ConclusionLaparoscopic fertility-sparing surgery may represent a feasible option in well-selected patients with ovarian growing teratoma syndrome. Surgery should be performed in gynecologic oncology centers by experienced staff trained in endoscopic procedures. More research and long-time follow-up are needed to determine the oncological outcomes and safety of laparoscopic surgery in this population.

Laparoscopic versus open surgery in treating patients with gallbladder cancer: a systematic review and meta-analysis.

Concerns over the security of laparoscopic radical operation for gallbladder cancer (GBC) persist. This systematic review and meta-analysis attempted to compare the safety and efficacy of laparoscopic surgery (LS) versus open surgery (OS) in the treatment of GBC. The PubMed, EMBASE, and Web of Science were searched from inception to July 18, 2022. Literature search, quality assessment, and data extraction were completed independently and in duplicate. Effect-size estimates expressed as weighted mean difference (WMD) or odds ratio (OR) with 95% confidence interval (CI) were derived under the random-effects model. A total of 27 independent studies including 2,868 participants were meta-analyzed. Significance was noted for intraoperative blood loss (WMD: -117.194, 95% CI: -170.188 to 64.201, P<0.001), harvested lymph nodes (WMD: -1.023, 95% CI: -1.776 to -0.269, P=0.008), postoperative hospital stay (WMD: -3.555, 95% CI: -4.509 to -2.601, P<0.001), postoperative morbidity (OR: 0.596, 95% CI: 0.407 to 0.871, P=0.008), overall survival rate at 2-year (OR: 1.524, 95% CI: 1.143 to 2.031, P=0.004), T2 survival at 1-year (OR: 1.799, 95% CI: 1.777 to 2.749, P<0.01) and 2-year (OR: 2.026, 95% CI: 1.392 to 2.949, P<0.001), as well as T3 survival at 1-year (OR: 2.669, 95% CI: 1.564 to 4.555, P<0.001) and 2-year (OR: 2.300, 95% CI: 1.308 to 4.046, P=0.004). Subgroup analyses revealed that ethnicity, incidental GBC, sample size, and follow-up period were possible sources of heterogeneity. There was a low probability of publication bias for all outcomes except postoperative morbidity. Our findings indicated that LS statistically had better 2-year survival rates, less intraoperative bleeding, shorter hospitalization times, and lower rates of complications than OS. However, the superiority and even the safety of LS still remain an open question due to the impact of incidental GBC, unaccounted heterogeneity, publication bias, lymph node dissection, and port-site metastasis.

Efficacy and safety of laparoscopic surgery vs open surgery in gastrointestinal tumor resection: a systematic review

Gastrointestinal stromal tumors (GISTs) arise from mesenchymal tissues of gastrointestinal GI tract. This tumor comes in the category of rare tumor as it makes up only 1 to 3% of tumors in the gastrointestinal (GI) tract. It is important to note that it is most prevalent type of tumor originating from mesenchymal cells, accounting for 80% of cases within this category. Despite other treatments, surgical resection is cornerstone of treatment for non-metastatic GISTs. In recent decades, surgical procedures to remove GISTs has witnessed a paradigm shift towards minimally invasive techniques, e.g. laparoscopic surgery (LAP). Open surgery is also being frequently used but it is generally recommended based on other factors such as tumor location in GI tract or whether it is localized or has spread in other organs or tissues. LAP is more advanced form of surgery and it is recommended because of reduced postoperative pain, shorter hospital stays, lower rate of hospitalization and post-operative complications compared to open surgery. In this paper, we aim to discuss surgical interventions for GISTs, with clear aim to compare LAP with Open Surgery OS.

Analysis of the Therapeutic Efficacy of Laparoscopic Treatment for Fibroepithelial Polyps of the Ureter in Children.

Objective: The aim of this study is to assess the efficacy and safety of laparoscopic surgery in the treatment of pediatric ureteral fibroepithelial polyp (FEP) patients. Our hypothesis is that laparoscopic surgery can effectively treat FEPs while minimizing patient discomfort and complications. Our research aims to evaluate the clinical outcomes of the surgery, including postoperative symptom relief, improvement in kidney function, and risk of postoperative complications. Methods: The clinical records of 34 patients who underwent ureteral polyp surgery at the Department of Urology at Anhui Provincial Children's Hospital between May 2014 and February 2023 were retrospectively analyzed. All patients underwent laparoscopic surgery. Among the 34 pediatric patients, there were 31 males and 3 females, with 2 on the right side and 32 on the left side. Of these cases, 24 polyps were located at the ureteropelvic junction, while seven were found in the upper segment of the ureter and three in its middle segment. Patients' ages ranged from 4 years and 3 months to 15 years, with a median age of 8 years and 6 months. All children presented with varying degrees of hydronephrosis, and preoperative clinical symptoms included ipsilateral flank or abdominal pain, hematuria, and other discomfort. Preoperative examinations mainly comprised ultrasound, intravenous pyelography, CT, or magnetic resonance urography imaging studies, as well as diuretic renography. All pediatric patients underwent laparoscopic excision of the polyp segment of the ureter, followed by renal pelvis ureteroplasty or ureter-to-ureter anastomosis. Results: All patients underwent surgery without conversion to open surgery. The surgical duration ranged from 72 to 313 minutes, with an average of 179.5 minutes. The average intraoperative blood loss was 14 mL. Postoperatively, one patient experienced leakage at the anastomotic site; however, no other significant complications occurred during or after the procedure. Postoperative histopathology confirmed the presence of FEPs in the ureter for all cases. All patients experienced a favorable postoperative recovery, with hospitalization periods ranging from 3 to 16 days and an average stay of 8.6 days. A Double-J stent was inserted in all patients for a duration of 1 to 2 months after surgery, and upon removal, follow-up color Doppler ultrasound revealed reduced hydronephrosis within 1 to 3 months. Follow-up examinations were conducted at intervals ranging from 3 to 108 months postsurgery, with an average follow-up time of 42.2 months, during which no recurrence of ureteral polyps or symptoms such as pain and hematuria was observed. Conclusions: The findings of this study demonstrate that laparoscopic excision of the polyp segment of the ureter, renal pelvis ureteroplasty, and ureter-to-ureter anastomosis represent safe and effective treatment modalities for pediatric FEPs in the ureters. This technique offers several advantages, including minimal invasiveness, rapid recovery, and definitive therapeutic efficacy, which effectively alleviate clinical symptoms and improve hydronephrosis.

Safety of Laparoscopic Surgery in Gynecologic Emergencies: Comparative Analysis with and without Previous Abdominopelvic Surgery

Safety of Laparoscopic Surgery in Gynecologic Emergencies: Comparative Analysis with and without Previous Abdominopelvic Surgery

Safety of laparoscopic surgery in the management of endometrioid endometrial cancer.

Laparoscopic surgery has increasingly been preferred in recent years. However, data regarding the safety of laparoscopy in endometrial cancer are not sufficient. The aim of this study was to compare perioperative and oncologic outcomes of laparoscopic and laparotomic staging surgery in patients with endometrioid endometrial cancer and to evaluate the safety and efficacy of laparoscopic surgery in this population. Data of 278 patients, who underwent surgical staging for endometrioid endometrial cancer at the gynecologic oncology department of a university hospital between 2012 and 2019, were analyzed retrospectively. Demographic, histopathologic, perioperative, and oncologic characteristics were compared between laparoscopy and laparotomy groups. A subgroup of patients with a body mass index (BMI) >30 was further evaluated. Demographic and histopathologic characteristics were similar between the two groups, while laparoscopic surgery was seen to be significantly superior in terms of perioperative outcomes. The number of removed and metastatic lymph nodes was significantly higher in the laparotomy group; however, this difference did not affect the oncologic outcomes, including recurrence and survival rates, and the two groups had similar results in this aspect. The outcomes of the subgroup with BMI >30 were also in accordance with the whole population. Intraoperative complications in laparoscopy were managed successfully. Laparoscopic surgery appears to be advantageous over laparotomy, and depending on the surgical experience, it may be performed safely for surgical staging of endometrioid endometrial cancer.

Safety of laparoscopic surgery during pregnancy: a Korean nationwide population-based study.

The optimal surgical approach to perform during pregnancy is still controversial. This study evaluated pregnancy and operative outcomes in women undergoing an appendectomy or cholecystectomy during pregnancy, and compared them between the laparoscopic and open approach using nationwide population-based data. Between 2009 and 2019, a total of 2941 pregnant women with procedure codes for an appendectomy or cholecystectomy were extracted from the Korean National Health Insurance claims data (laparoscopy: 1504; open: 1437). Surgical outcomes [length of stay (LOS), anesthesia time, 30-day readmission rates, transfusion rates, second laparotomy, and 30-day mortality rates] and pregnancy outcomes (live birth rate, overall and spontaneous abortion rates, threatened abortion rate, type of delivery, preterm labor, stillbirth, fetal screening abnormalities, and intrauterine growth retardation) were compared between the open and laparoscopic groups. The laparoscopic group had a significantly shorter LOS than the open group, and transfusions were less frequent in the laparoscopic group. Mortality, 30-day readmission rates, and second laparotomy were not statistically significant between the two groups. There were no significant differences in fetal loss and live birth rates between the two groups in all gestational ages. Preterm labor within 30days of surgery was more frequent in the laparoscopy group than in the open surgery group, especially for those in their first and third trimesters. Open procedures were associated with an increased rate of cesarean sections. Laparoscopic surgery was found to be feasible and safe without adverse postoperative outcomes. Careful observation of postoperative preterm labor is necessary, especially for women who undergo laparoscopic surgery in their first and third trimesters.

EP.WE.238Implications of COVID-19 on Laparoscopic General Surgery: a single site experience

Introduction and AimsThe COVID-19 pandemic has had an unprecedented impact on service provision in Emergency General Surgery. Due to the unknown risk of COVID-19 transmission, the use of laparoscopic surgery was cautioned against in favour of open surgery or conservative management. This study looks at the impact of service reconfiguration on rates of laparoscopic surgery.MethodsThe management and outcomes were audited of all patients admitted to our unit during the UK COVID-19 lockdown period and compared against the same period last year.ResultsIn total, 645 patients (223 COVID-19 period, 422 non-COVID) were included. Less surgery was performed during the pandemic (32.3% vs 39.3%), with only 2 cases of laparoscopic surgery (0.9% vs 16.1%). Despite a change to conservative management, we report no differences in complication rates or length of stay and 30-day mortality (excluding deaths from COVID-19 pneumonitis). Re-admission rates were higher following conservative management (10.6% vs 4.7%).ConclusionThere is a significant reduction in surgery (particularly laparoscopic surgery) during the COVID-19 pandemic. There are no differences in outcomes, but we show higher re-admission rates for patients treated conservatively. Together with emerging evidence on the safety of laparoscopic surgery, these findings help inform service re-configuration for future pandemic responses.

Laparoscopic Surgeries in Urology: Initial Burgeoning Experience at National Transplant Centre, Nepal

Background This study focuses on experience of laparoscopic surgery at Shahid Dharma Bhakta National Transplant Centre (SDNTC), Nepal; which could enable us to gain knowledge regarding its benefits over conventional surgery. The present study revealed the frequency of various forms of laparoscopic surgeries done at our centre. Moreover, this study accomplishes laparoscopic donor nephrectomy “a historical milestone achieved in Nepal for kidney transplantation on 18th November 2018” which was the first Laparoscopic donor nephrectomy done in Nepal by Nepalese team. Objective The present study assesses the feasibility and safety of laparoscopic surgery at government hospital of Nepal. Method This hospital based cross-sectional study included all patients of age group 10 to 60 years, coming to outpatient department of SDNTC and those having indications for nephrectomy. We excluded patient having previous history of open surgeries of kidney, bleeding disorders, uncontrolled Diabetes Mellitus and uncontrolled Hypertension. The study duration was 15 months from November 2017 to January 2019. The total number of patients enrolled in the study was fifty where transperitoneal laparoscopic surgery was performed in all 50 patients. The demographic data, indications for surgery, duration of surgery, complications of surgery and perioperative outcomes were analyzed. Result Out of 50 cases, 34 (68%) underwent simple lap nephrectomy, 6 (12%) were lap pyeloplasty, 6 (12%) lap nephrectomy along with ureterectomy of long segment of diseased ureter, 1 (2%) lap radical nephrectomy, 1 (2%) lap donor nephrectomy for kidney transplantation, 1 (2%) lap heminephrectomy and 1 (2%) lap nephrectomy for hydronephrotic non functioning left crossed ectopia. Amongst all nephrectomies, 27 (54%) patients were operated on right side while 23 (46%) patients on left. The median age of the patient was 38.56 years. Out of total cases 32 (64%) were male and 18 (36%) female. The median operative time and hospital stay was 122.3 minutes and 5 days respectively. The median estimated blood loss was 74.1 cc. Only one patient required blood transfusion intra-operatively. 2 (4%) patients were converted to open surgery. Conclusion Laparoscopic surgery is feasible and safe procedure in government setup hospital with less cumbersome procedure and minimum complications associated with it.

Safety of Laparoscopy in Patients with Ventriculoperitoneal Shunts

The relationship between the intra-abdominal pressure (IAP) and intracranial pressure (ICP) has been suspected for more than 100 years and was subsequently confirmed by numerous studies in both animals and humans which demonstrate the link and the positive correlation between IAP and ICP. There are mounting concerns that the pneumoperitoneum created during laparoscopic surgery to create space for instrument placement and to allow safe tissue dissection may result in an increase in the ICP secondary to the increase in the IAP which may result in serious consequences in patients with Ventriculoperitoneal (VP) shunts. There is uncertainty about the safety of laparoscopic surgery in VP shunt patients. The aim of this article is to review the literature to answer the question [Is laparoscopic surgery safe in VP shunt patients with and without intraoperative monitoring of ICP]?

Laparoscopic surgery during the COVID-19 pandemic: detection of SARS-COV-2 in abdominal tissues, fluids, and surgical smoke.

BackgroundThere are still concerns over the safety of laparoscopic surgery in coronavirus disease 2019 (COVID-19) patients due to the potential risk of viral transmission through surgical smoke/laparoscopic pneumoperitoneum.MethodsWe performed a systematic review of currently available literature to determine the presence of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) in abdominal tissues or fluids and in surgical smoke.ResultsA total of 19 studies (15 case reports and 4 case series) comprising 29 COVID-19 patients were included. The viral RNA was positively identified in 11 patients (37.9%). The samples that tested positive include the peritoneal fluid, bile, ascitic fluid, peritoneal dialysate, duodenal wall, and appendix. Similar samples, together with the omentum and abdominal subcutaneous fat, tested negative in the other patients. Only one study investigated SARS-COV-2 RNA in surgical smoke generated during laparoscopy, reporting negative findings.ConclusionsThere are conflicting results regarding the presence of SARS-COV-2 in abdominal tissues and fluids. No currently available evidence supports the hypothesis that SARS-COV-2 can be aerosolized and transmitted through surgical smoke. Larger studies are urgently needed to corroborate these findings.Supplementary InformationThe online version contains supplementary material available at 10.1007/s00423-021-02142-8.

Laparoscopic Repair of Near Complete Traumatic Duodenal Transaction in an Eight Years Old Child: A Case Report

Background: Traumatic duodenal perforation is a serious injury and is a result of major trauma and insult to the body. The management is difficult due to associated injuries and these children often need major resuscitation. The standard surgical treatment of traumatic duodenal perforation is laparotomy and repair of duodenal perforation. In children, laparoscopic repair of duodenal perforation is reported in only a few cases. Case: A repair of a near-complete duodenal transaction is not reported in the pediatric population. Herein, we report a case of an eight years old child who had a road traffic accident, and sustained multiple injuries and duodenal perforation, as confirmed by radiological evaluation including CT abdomen. The child was resuscitated, and later laparoscopy was performed, which showed gross bruising of the abdominal wall and a nearcomplete transaction at the level of 3rd part of the duodenum. Conclusion: Laparoscopic repair of the duodenum was performed using interrupted polyglycolic sutures. The child had a smooth post-op recovery and was discharged home in stable condition. At one-year follow-up, the child remained well and symptom-free. This case highlights the role of the safety of laparoscopic surgery in abdominal trauma and duodenal perforations.

Feasibility and safety in difficult laparoscopic cholecystectomies; a single surgeon experience.

Background: laparoscopic cholecystectomy is commonly used for the treatment of gallstones. Objective: To determine the feasibility and safety of difficult laparoscopic cholecystectomies. Methodology: This cross sectional study was based on retrospective collection of data from patient records, including 323 patients with difficult laparoscopic cholecystectomies was conducted in Department of Surgery, Sharif Medical City Hospital, and Rasheed Hospital, Lahore from June 2010 to December 2019. Difficult cholecystectomy was defined on intraoperative findings based on Nassar intraoperative scoring system. Feasibility was defined as successful accomplishment of procedure without complication and safety was defined as having no intraoperative or postoperative complications. Results: There were 75 (23.21%) male and mean age was 48±8 years. Class I difficulty was observed in 185 (57.3%) patients, class II difficulty in 83 (25.7%) patients, class III difficulty in 44 (13.6%) patients and class IV difficulty in 11 (3.4%) patients. Mean duration of surgery and mean hospital stay were 98.87±11.76 minutes and 1.91±1 days, respectively. Conversion to open cholecystectomy was done in 10 (3.1%). The procedure was feasible in 313 (96.9%) patients. Overall complications were seen in 19 (5.9%) patients. The complications included Common Bile Duct injury in 1 (0.31%) patient, intraoperative bleeding in 1 (0.3%) patients, bile leakage in 2 (0.62%) patients, postoperative jaundice in 3 (0.93%) patients, superficial infections in 10 (3.1%) patients and deep infections in 2 (0.62%) patients. Safety of laparoscopic surgery was seen in 304 (94.1%) patients. Conclusion: Laparoscopic cholecystectomy in difficult situations was found to be feasible and safe in majority of patients. However, it was associated with a longer operative time.

Omnidirectional camera and head-mount display contribute to the safety of laparoscopic surgery

Background We focused on the availability of an omnidirectional camera and head-mount display (HMD). If the laparoscope is an omnidirectional camera, captured images are sent to the HMD worn by the operator in real time. The operator can thus view the image as they like without moving the camera and obtain a 360° view intuitively. However, the surgical system that can be used for actual laparoscopic operations has not yet been developed. In this study, we aimed to show that an omnidirectional camera and HMD would be useful in laparoscopic surgery. Material and methods Eleven medical students and twelve surgical residents (Surgeons group) participated in this study. We created an experimental box with five marks randomly attached inside the box, and the inside cannot be seen from the outside. We measured the time it took to identify all marks between conventional laparoscope and substitute system in each group. Results In the substitute system, the time required for the task was significantly shorter than with conventional laparoscopy in each group. Conclusion An omnidirectional camera and HMD may be a useful new device for laparoscopic surgery. This system may help improve the safety of laparoscopic surgery.

Laparoscopic surgery for endometriosis.

Background Endometriosis is the presence in inappropriate sites of tissue that normally lines the uterus. It can cause pain and subfertility. Different treatments for endometriosis are available, one of which is laparoscopic ('key hole') surgery, performed to remove visible areas of endometriosis. Cochrane review authors assessed the evidence on the use of laparoscopic surgery to treat pain and fertility problems in women with endometriosis. Laparoscopic surgical techniques include ablation, which means destruction of a lesion (for example by burning), and excision, which means cutting a lesion out. Study characteristics We included 10 randomised controlled trials (involving 973 participants). They were conducted in Australia, Canada, Egypt, Iran and the United Kingdom. Most compared laparoscopic ablation or excision versus diagnostic laparoscopy only. Four of the 10 studies reported their source of funding. The evidence was current to July 2013. Key results We found that laparoscopic surgery may be of benefit in treating overall pain and subfertility associated with mild to moderate endometriosis. Laparoscopic excision and ablation were similarly effective in relieving pain, although this result came from a single study. There was insufficient evidence on adverse events to allow any conclusions to be drawn regarding safety

Laparoscopic procedure is associated with lower morbidity for simultaneous resection of colorectal cancer and liver metastases: an updated meta-analysis

BackgroundIt has been demonstrated that simultaneous resection of both primary colorectal lesion and metastatic hepatic lesion is a safe approach with low mortality and postoperative complication rates. However, there are some controversies over which kind of surgical approach is better. The aim of study was to compare the efficacy and safety of laparoscopic surgeries and open surgeries for simultaneous resection of colorectal cancer (CRC) and synchronous colorectal liver metastasis (SCRLM).MethodsA systemic search of online database including PubMed, Web of Science, Cochrane Library, and Embase was performed until June 5, 2019. Intraoperative complications, postoperative complications, and long-term outcomes were synthesized by using STATA, version 15.0. Cumulative and single-arm meta-analyses were also conducted.ResultsIt contained twelve studies with 616 patients (273 vs 343, laparoscopic surgery group and open surgery group, respectively) and manifested latest surgical results for the treatment of CRC and SCRLM. Among patients who underwent laparoscopic surgeries, they had lower rates of postoperative complications (OR = 0.66, 95% CI: 0.46 to 0.96, P = 0.028), less intraoperative blood loss (weight mean difference (WMD) = − 113.31, 95% CI: − 189.03 to − 37.59, P = 0.003), less time in the hospital and recovering after surgeries (WMD = − 2.70, 95% CI: − 3.99 to − 1.40, P = 0.000; WMD = − 3.20, 95% CI: − 5.06 to − 1.34, P = 0.001), but more operating time (WMD = 36.57, 95% CI: 7.80 to 65.35, P = 0.013). Additionally, there were no statistical significance between two kinds of surgical approaches in disease-free survival and overall survival. Moreover, cumulative meta-analysis indicated statistical difference in favor of laparoscopic surgery in terms of morbidity was firstly detected in the 12th study in 2018 (OR = 0.66, 95% CI: 0.46 to 0.96, P = 0.028) as the 95% CI narrowed.ConclusionCompared with open surgeries, laparoscopic surgeries are safer (postoperative complications and intraoperative blood loss) and more effective (length of hospital stay and postoperative stay), and it can be considered as the first option for management of SCRLM in high-volume laparoscopic centers.Trial registrationCRD42020151176

Indications for laparoscopic surgery for older rectal cancer patients with comorbidities.

Given the lack of safety studies concerning laparoscopic surgery for rectal cancer in patients ≥ 80years old with comorbidities, we sought to investigate this in the current study. Between 2012 and 2019, 24 patients ≥ 80years old underwent laparoscopic surgery for rectal cancer without preoperative treatment. These patients were divided into those with [comorbidity(+) group, n = 13] and without [comorbidity(-) group, n = 11] comorbidities. The preoperative nutritional status and ASA classification, postoperative complications, time to oral diet, and length of hospital stay were evaluated in each group. In the comorbidity(+)/comorbidity(-) groups, the average age was 85.9/84.1years old, respectively. The major comorbidities were heart disease including atrial fibrillation and valvular disorder. The average PNI and CONUT scores in the comorbidity(+)/comorbidity(-) groups were 44.7/44.2 an 3.1/2.2, respectively. Planned surgical procedures were completed in all patients. Postoperative complications occurred in 2/3 cases in the comorbidity(+)/comorbidity(-) groups, respectively, and the average time to oral diet was 3.8/3.7days, while the average length of hospitalization after surgery was 15.2/16.5days, respectively. In the comorbidity(+) group, there was no exacerbation of comorbidities in any cases. The safety of laparoscopic surgery is acceptable among older rectal cancer patients with comorbidities.

The evaluation of synthetic datasets on training AlexNet for surgical tool detection

Abstract Surgical tool recognition is a key task to analyze surgical workflow, in order to improve the efficiency and safety of laparoscopic surgeries. The laparoscopic videos are important sources to conduct this task, However, there are some challenges to analyze these videos. Focus on the imbalanced dataset problem, data augmentation method based on generate different synthetic datasets and evaluate their performance training on a convolutional neural network model are investigated in this research. The results show the effect on the model with different background patterns. A better performance was achieved when the model was trained by a structure background dataset. Further research will be needed to understand why the original background patterns support the correct classification. It is assumed that this is an overlearning effect, that will not hold if other procedures were included into the test set.

Minimal Access Gardening: Laparoscopic Techniques during Coronavirus Disease Lockdown

ObjectiveTo demonstrate techniques of laparoscopic surgery while all elective procedures are suspended.DesignStepwise demonstration of key skills required when gardening with minimal access techniques.SettingGynecologist residence in self-isolation, Manchester, United Kingdom.InterventionsOwing to the coronavirus disease pandemic, elective operations are currently suspended in the United Kingdom. In addition, there have been concerns regarding the safety of laparoscopic surgery and risk of transmission of the coronavirus disease [1,2]. As a result, laparoscopic surgeons are at risk of skill deterioration, and it is uncertain whether this may have an impact on patient safety when lockdown measures are de-escalated.Combining gardening, one of the major pastimes during the lockdown period, and minimal access surgical skills, this video demonstrates the different ways minimal access surgery may be applied to horticulture.In the first described technique, what the author believes to be hedge bindweed (Calystegia sepium) was excised using a grasper and a tripolar cutting device (Fig. 1). For obvious reasons diathermy is not available within the home environment, but the retractable cutting blade was used to efficiently slice through the stems required for weed removal. The disadvantage of this technique is clearly that the unwanted species is likely to regrow in 12 months.In the second described technique, dandelions (genus Taraxacum) (Fig. 2), which are native to Eurasia and North America, were excised at the flowering stage, thereby effectively preventing asexual reproduction by apomixis. The technique similarly uses the retractable blade of the tripolar cutting device.The third technique demonstrates harvesting of an unknown species using a soil dissection technique. To facilitate complete removal of the plant and to reduce the risk of recurrence, the roots are carefully dissected out using blunt dissection. As with many techniques, patience is of paramount importance.Last, ensuring hydration of plants is crucial to their early stage of development. Laparoscopic watering techniques are usually simplified when an irrigation and suction device is employed. However, within a low-resource setting a slow process of “cup feeding” is required and requires meticulous dexterity (Fig. 3). Unfortunately, during this demonstration a common complication of a loss of instrument occurred, but the subject was luckily successfully hydrated.ConclusionWhile a lockdown remains in place, many gynecologists are not able to maintain their laparoscopic surgical skills. It is important to combine activities of daily living with minimal access training to maintain our physical and mental well-being. More research is clearly needed in the area of minimal access horticulture to expand this new and exciting subspecialty.

Laparoscopy in Colonic Cancer

This is the era of minimally invasive surgery which has been extended to cancer surgeries as well because laparoscopic surgery better preserves the oncologic and immunologic functions. Laparoscopic surgery for colonic cancer dates back to 1990, yet its widespread use is not uniform or universal possibly because of the concerns on oncological clearance, long learning curve, long operative times, more complications in the form of bleeding and bowel injury, extremes of positions needed for colonic resections with laparoscopy and high conversion rates due to tumour fixity. The feasibility and safety of laparoscopic surgery for colon cancer with comparable short- and long-term outcomes have been demonstrated in the various randomized controlled trials like COST (Clinical Outcomes of Surgical Therapies) and COLOR (Colon Cancer Laparoscopic or Open Resection). Proper case selection and appropriate preparation and use of different laparoscopic techniques can make the use of laparoscopy in colonic cancer more widespread. For case selection, though studies have shown laparoscopic resection of T4a lesions, these tumors have been classified as high-risk cases and considered as contraindication for laparoscopic surgery according to National Comprehensive Cancer Network (NCCN); hence, early cancers are better dealt with laparoscopy. For preoperative preparation, proper tumour localization and bowel preparation followed by use of surgical techniques like complete laparoscopic resection, laparoscopic-assisted and laparoscopic-facilitated resections should be used depending on case and expertise. Standardization of procedures and formalized training of surgeons would be useful in extending its widespread use across institutions.