Retroperitoneal Access Research Articles

Long-term results of endovascular versus open retroperitoneal repair associated with ERAS protocol for abdominal aortic aneurysms.

Although the endovascular management of infrarenal abdominal aortic aneurysms (AAAs) is widely performed, many studies have shown better long-term results with open graft repairing, mostly focusing on the classical open repair with midline access. This study aims to evaluate long-term results comparing EVAR (endovascular aneurysm repair) and surgical open repair with retroperitoneal access associated with ERAS (Enhanced Recovery After Surgery) protocol. A retrospective analysis of 156 patients treated for AAA between 2015 and 2018 was conducted. Clinical and demographic characteristics of the two groups were homogeneous except for age, which was significantly higher in patients belonging to the EVAR one, and for previous laparotomies. A total of 100 patients (58.7%) underwent open retroperitoneal repair (ORR group), and 56 (42.3%) underwent EVAR. A mean of 51 ± 28months of follow-up was conducted. This study aims to evaluate long-term survival by comparing EVAR (endovascular aneurysm repair) and surgical open repair with retroperitoneal access associated with ERAS (Enhanced Recovery After Surgery) protocol. Secondary aims evaluate differences between the two techniques regarding late complications, need for re-interventions, and perioperative results. Freedom from all-cause mortality, calculated with Kaplan-Meier survival curves equalizing the two population with a Covariate Propensity Score, showed significant better survival rates at 1, 3, and 5years in ORRs then in EVARs. Late complications (>30days) and need for late re-intervention rates were greater in the EVAR group (6 late re-interventions needed vs 0 in the ORR group).Perioperative results show longer mean length of hospital stay in patients belonging to the ORR group (5days vs 2) and significantly higher in-hospital-complication rate. The long-term comparison between EVAR and open retroperitoneal repair shows significantly better late outcomes in the ORR group. The perioperative course appears significantly better in EVARs but anyway good in ORRs when a perioperative protocol as ERAS is applied.In a selected population of young patients fit for surgery, the retroperitoneal surgical approach should be highly taken into account in the therapeutical choice.

Robotic Rectosigmoid Resection with Totally Intracorporeal Colorectal Anastomosis (TICA) for Recurrent Ovarian Cancer: A Case Series and Description of the Technique.

Most patients with ovarian cancer relapse within 2 years. Prospective randomized trials, such as DESKTOP III and SOC-I, have shown the role of secondary cytoreduction in improving oncological outcomes in selected patients, when complete tumor resection is achieved. Recent retrospective series suggest that minimally invasive surgery is a feasible option in oligometastatic recurrences, such as rectal ones. Five patients with an isolated rectal recurrence infiltrating the bowel wall underwent a robotic rectosigmoid resection with totally intracorporeal colorectal anastomosis. The procedure began with retroperitoneal access to manage the vascular structures, followed by visceral resection with a minimally invasive approach. The standard steps of an en-bloc pelvic resection, including intracorporeal end-to-end anastomosis, were performed. The treatment data were evaluated. The mean age of the patients was 54 years, and their mean body mass index was 30. All patients had at least one previous abdominal surgery and 60% had high-grade serous ovarian cancer at their initial diagnosis. Their mean platinum-free interval was 17.4 months. Complete secondary cytoreduction was achieved in all cases, with histopathology confirming bowel infiltration. The mean procedure duration was 294 min, with an estimated blood loss of 180 mL. No intraoperative complications occurred. The mean hospital stay was 8 days. One patient had a grade 2 postoperative complication. The mean follow-up period was 14 months, with only one patient experiencing a recurrence at the level of the abdominal wall. Robotic rectosigmoid resection is a viable option for complete cytoreduction in isolated recurrent ovarian cancer.

Variations of the extrapsoas course of the lumbar plexus with implications for the lateral transpsoas approach to the lumbar spine: a cadaveric study

BackgroundTogether with an increased interest in minimally invasive lateral transpsoas approach to the lumbar spine goes a demand for detailed anatomical descriptions of the lumbar plexus. Although definitions of safe zones and essential descriptions of topographical anatomy have been presented in several studies, the existing literature expects standard appearance of the neural structures. Therefore, the aim of this study was to investigate the variability of the extrapsoas portion of the lumbar plexus in regard to the lateral transpsoas approach.MethodsA total of 260 lumbar regions from embalmed cadavers were utilized in this study. The specimens were dissected as per protocol and all nerves from the lumbar plexus were morphologically evaluated.ResultsThe most common variation of the iliohypogastric and ilioinguinal nerves was fusion of these two nerves (9.6%). Nearly in the half of the cases (48.1%) the genitofemoral nerve left the psoas major muscle already divided into the femoral and genital branches. The lateral femoral cutaneous nerve was the least variable one as it resembled its normal morphology in 95.0% of cases. Regarding the variant origins of the femoral nerve, there was a low formation outside the psoas major muscle in 3.8% of cases. The obturator nerve was not variable at its emergence point but frequently branched (40.4%) before entering the obturator canal. In addition to the proper femoral and obturator nerves, accessory nerves were present in 12.3% and 9.2% of cases, respectively.ConclusionNerves of the lumbar plexus frequently show atypical anatomy outside the psoas major muscle. The presented study provides a compendious information source of the possibly encountered neural variations during retroperitoneal access to different segments of the lumbar spine.

Surgical outcomes of novel retroperitoneal low anterior vs posterior and transperitoneal access in single-port partial nephrectomy.

Single-Port Robot-Assisted Partial Nephrectomy (SP-RAPN) can be performed by transperitoneal and retroperitoneal approaches. However, there is a lack of surgical outcomes for novel Retroperitoneal Low Anterior Access (LAA) in SP-RAPN. The study compared outcomes of the standard approach (SA), considering transperitoneal (TP) and posterior retroperitoneal (RP) access vs LAA in SP-RAPN series. 102 consecutive patients underwent SP-RAPN between 2019 and 2023 at a tertiary referral robotic center were identified. Baseline characteristics, peri- and post-operative outcomes were collected. Patients were stratified according to surgical approach into standard (RP or TP) vs LAA and, subsequently, RP vs LAA. Multivariable logistic regression analysis was used to test the probability of the same-day discharge adjusting for comorbidity indexes. Overall, 102 consecutive patients were included in this study (68 SA - 26 TP and 42 posterior RP vs 34 LAA). Median age was 60 (IQR 51.5-66) years and median BMI was 31 (IQR 26.3-37.6). No baseline differences were observed. LAA exhibited significantly shorter length of stay (LOS) (median 10 [IQR 8-12] vs 24 [IQR 12-30.2.] hours, p < .0001), reduced post-operative pain (p < .0001) and decreased narcotic use on 0-1 PO Day (p < .001) compared to SA and RP only. Multivariate analysis, adjusting for comorbidities, identified LAA as a strong predictor for Same-Day Discharge. LAA is an effective approach as well as RP and TP, regardless of the renal mass location, whether it is anterior or posterior, upper/mid or lower pole, yielding favorable outcomes in LOS, post-operative pain and decreased narcotics use compared to SA in SP-RAPN.

ОЦЕНКА РЕЗУЛЬТАТОВ ПРИМЕНЕНИЯ АЛГОРИТМА ВЫБОРА ОПТИМАЛЬНОГО ХИРУРГИЧЕСКОГО ДОСТУПА К ЗАБРЮШИННОМУ ПРОСТРАНСТВУ У ПАЦИЕНТОВ С РАЗЛИЧНЫМИ ПАРАМЕТРАМИ КОНСТИТУЦИИ.

Relevance. Despite the rapid development and predominance of endovideosurgical techniques in the treatment of pathologies of organs and structures of the retroperitoneal space, the implementation of transperitoneal or retroperitoneal approaches for open surgical interventions remains a routine activity. Surgical treatment of various pathologies of retroperitoneal localization leads to the development of nonspecific life-threatening complications in 23.8% - 30% of clinical observations, and associated mortality - 7.2% - 11% of cases. Previously, our works presented the results of comparing the number of this type of complications when using laparotomy or retroperitoneal access, depending on the constitutional parameters of the patient. An assessment was made of the significance of the influence of constitutional parameters on the development of nonspecific life-threatening complications, on the basis of which an algorithm for choosing the optimal surgical access to the structures of the retroperitoneal space was developed [patent application No. 2024113445 dated May 17, 2024]. Purpose of the study. To evaluate the effectiveness of using an algorithm for selecting the optimal surgical approach in the surgical treatment of pathologies of organs and structures of retroperitoneal localization. Materials and methods. Comparative analysis of the results of surgical treatment of patients with various surgical pathologies of the retroperitoneal space. Group I (n = 167), where the choice of surgical approach was determined using the “optimal surgical approach selection algorithm.” Group II (n = 284), in which the choice of access to the structures of the retroperitoneal space was not unified and was chosen without taking into account the constitutional parameters of the patient. In the perioperative period, the duration of surgical intervention, the volume of intraoperative blood loss, the number of days of stay in the intensive care unit, the time of postoperative respiratory support, the duration of postoperative intestinal paresis and the number of postoperative bed days were assessed. Criteria assessed in the postoperative period: development of myocardial infarction, acute cardiovascular failure, ARDS with the development of respiratory failure, acute kidney injury; cases of development of ischemic colitis and small intestinal obstruction, requiring repeated interventions, as well as the phenomenon of multiple organ failure. Wound complications included failure of retroperitoneal and laparotomy wounds, including eventration. To calculate quantitative characteristics, the median (Me) and percentiles (Q0.25 - Q0.75) were determined. Calculation of statistical significance between groups was performed using the Mann-Whitney U test**, for comparison of qualitative indicators - the Chi-square test* in IBM SPSS Statistics 25 software. Results. In group I, compared with group II, there was a shorter surgical intervention time [140.8 vs 179.5] min, p = 0.031**, a smaller volume of intraoperative blood loss [280.4 vs 413.3] ml, p = 0.024* *; postoperative respiratory support [4.5 vs 8.5] hours, p = 0.041**; length of stay in the intensive care unit [1.8 vs 3.4] days, p = 0.021**; postoperative intestinal paresis [1.2 vs 4.8] days p = 0.024**; and duration of total postoperative hospital stay [9.1 vs 16.4] days p = 0.003**. The number of postoperative nonspecific life-threatening and wound complications in group I was 24 (14.4%), and in group II - 64 (22.5%) cases (p = 0.023*). The number of complications-related deaths in group I was 9 (5.4%); in group II - 32 (11.26%) cases (p = 0.037*). Conclusion. The use of an algorithm for selecting the optimal surgical approach for surgical treatment of pathologies of organs and structures of the retroperitoneal localization of the access leads to a reduction in the number of nonspecific life-threatening complications to 14.4%, and associated deaths to 5.4%.

Single Port Modified Partial Nephrectomy: Novel Simultaneous Access to Peritoneal and Retroperitoneal Partial Nephrectomy, Initial Clinical Experience.

Introduction and Objective: Since its Food and Drug Administration (FDA) approval in 2018, Intuitive Surgical DaVinci single port (SP) robotic platform has been an effectively used technology for multiple urologic procedures. The purpose of this study is to share our early intraoperative and perioperative outcomes and potential benefits for performing a lower anterior access (LAA) incision for SP robot-assisted partial nephrectomy (SP-RAPN). The LAA incision enables performing a trans- or retroperitoneal (RP) approach through the same incision and eases the transition to a RP approach. Methods: This study is a prospective review of 78 SP-RAPN cases between March 2021 and January 2023 by an experienced robotic surgeon. A single 2-3 cm oblique incision parallel to the external oblique muscle, one-third of the distance between the iliac crest and umbilicus, was used to insert the multichannel port to perform the RAPN. We extracted intra- and perioperative data of these patients to share the outcomes of this approach. Results: SP-RAPN was effectively completed in 78 patients (38 females and 40 males) without conversion to open or laparoscopic techniques. The mean age was 61.2 ± 12.1 years. The mean tumor size was 3.0 ± 1.2 cm, 43 were right-sided masses, and 35 were left sided. The R.E.N.A.L Nephrometry score ranged from (4-11) with an average of 7.0 ± 1.9. Average operating room time was 90.5 ± 24.6 minutes, estimated blood loss was 88.3 ± 134 mL, and length of stay of 1.07 ± 0.7 days. Of the 78 cases, 40 required clamping of the renal artery with average warm ischemia time of 19.4 ± 6.7 minutes in patients who underwent clamping. No complications in all of 78 patients. Conclusions: This study demonstrates the feasibility and reproducibility of SP-RAPN using a LAA incision. This incision provides a standardized approach for surgeons to transition to the RP approach using the SP platform.

Surgical Treatment of Abdominal Aortic Aneurysms. A Retrospective Study.

Introduction: Surgical treatment of abdominal aortic aneurysms poses a significant challenge in the field of vascular surgery, with numerous factors influencing operative technique and surgical outcome.&#x0D; This study aimed to assess the outcomes of open surgical treatment for patients with abdominal aortic aneurysms at the Vascular Surgery Service of University Hospital Centre “Mother Teresa” Tirana and provide recommendations for improving outcomes.&#x0D; Material and Methods: A single-center, non-randomized, retrospective study of the results of open surgical treatment of abdominal aortic aneurysms in 206 patients from January 2008 to December 2015 was performed at the Vascular Surgery Service of University Hospital Centre “Mother Teresa” Tirana. The study only included patients with a histologically confirmed diagnosis of abdominal aortic aneurysm, while patients with ruptured abdominal aortic aneurysm were excluded.&#x0D; The study evaluated the incidence of abdominal aortic aneurysms, clinical and imaging findings of the disease (ultrasound, tomographic, and arteriographic), frequency of involvement of the iliac artery in the pathological process, and postoperative complications. Transabdominal access was the most commonly utilized, while retroperitoneal access was deemed the safest. No significant differences in recurrence rates were noted between the two approaches.&#x0D; Results: During the study period, 206 patients underwent surgery for AAA and met the inclusion criteria. Of these, 188 (91.3%) were male and 18 (8.7%) were female. The mean age of the patients was 67.8±5.7 years, with 67.7±5.9 years for men and 69±3.1 years for women. There were no statistically significant differences in age between genders (p&gt;0.05).&#x0D; Conclusion: In all other cases of abdominal aortic aneurysms, surgical treatment should be strongly recommended. Finally, given the clinical benefits of using surgical treatment of asymptomatic aneurysms to reduce mortality, it is necessary to conduct an economic assessment of the feasibility of abdominal aortic aneurysms screening in the population over 55 of the age of both sexes.&#x0D;

Concomitant carotid-carotid-axillary bypass withzone0 branched endograft and transcatheter aortic valve-in-valve replacement via retroperitoneal access.

Concomitant carotid-carotid-axillary bypass withzone0 branched endograft and transcatheter aortic valve-in-valve replacement via retroperitoneal access.

Robotic Retroperitoneal Versus Transperitoneal Partial Nephrectomy: Outcomes and Learning Curve.

The robotic retroperitoneal approach for renal mass surgery was introduced in 2018 at the Department of Urology in the clinic of Leverkusen, Germany. Clinical criteria for the choice of the access site (trans- vs. retroperitoneal) are not clearly defined. The aim of this study was to explore the learning curve and the impact of the access site on clinical outcome, in order to elucidate which preoperative clinical criteria should be taken into account when choosing the renal approach site. This retrospective study included 107 patients who underwent robotic tumor surgery between June 2018 and March 2022 at the Department of Urology in the Clinic of Leverkusen, Germany. Data from 86 patients with transperitoneal robotic surgery of the kidney and 21 patients with retroperitoneal access were available for analysis. We evaluated the data of patients in a trans- and a retroperitoneal access group. The preoperative clinical data included anthropomorphic data, the Body Mass Index (BMI) as well as the Preoperative Aspects and Dimensions Used for Anatomical Classification of Renal Masses (PADUA) - score. Intraoperative and postoperative data such as blood loss, clamping time, renal function and the learning curve of the surgeons was used to evaluate the outcomes of the two groups. Operation time in the retroperitoneal group was significantly shorter (p=0.015). Operation-specific variables showed no significant difference between the two groups. PADUA score and hilar clamping time showed no difference (p=0.345 and p=0.130, respectively). The learning curve in the retroperitoneal access group unveiled a noticeable difference in the experience and mastery of the involved surgeons. Mastery of the retroperitoneal approach is readily possible for surgeons with previous experience in robotic renal surgery without compromising the operative morbidity. The PADUA-score seems most suitable as a preoperative clinical criterion for choosing the renal approach site.

Simplifying Retroperitoneal Robotic Single-port Surgery: Novel Supine Anterior Retroperitoneal Access

BackgroundMultiport robotic surgery in the retroperitoneum is limited by the bulky robotic frame and clashing of instruments. Moreover, patients are placed in the lateral decubitus position, which has been linked to complications. ObjectiveTo assess the feasibility and safety of a supine anterior retroperitoneal access (SARA) technique with the da Vinci Single-Port (SP) robotic platform. Design, setting, and participantsBetween October 2022 and January 2023, 18 patients underwent surgery using the SARA technique for renal cancer, urothelial cancer, or ureteral stenosis. Perioperative variables were prospectively collected and outcomes were assessed. Surgical procedureWith the patient in a supine position, a 3-cm incision is made at the McBurney point and the abdominal muscles are dissected. Finger dissection is used to develop the retroperitoneal space for the da Vinci SP access port. After docking, the first step is to dissect retroperitoneal tissue to reveal the psoas muscle. This allows identification of the ureter, the inferior renal pole, and the hilum. MeasurementsA descriptive statistical analysis was performed. Data collected included demographics, operative time, warm ischemia time (WIT), surgical margin status, complications, length of hospital stay, 30-d Clavien-Dindo complications, and postoperative narcotic use. Results and limitationsTwelve patients underwent partial nephrectomy (PN) and two each underwent pyeloplasty, radical nephroureterectomy, and radical nephrectomy. In the PN group, mean age was 57 yr (interquartile range [IQR] 30–73), median body mass index was 32 kg/m2 (IQR 17–58), and 25% had stage ≥3 chronic kidney disease. The median Charlson comorbidity index was 3 (IQR 0–7) and 75% of PN patients had an American Society of Anesthesiologists score ≥3. The median RENAL score was 5 (IQR 4–7). The median WIT was 25 min (IQR 16–48) and the median tumor size was 35 mm (IQR 16–50). The median estimated blood loss was 105 ml (IQR 20–400) and the median operative time was 160 min (IQR 110–200). Positive surgical margins were found in one patient. In the overall cohort, one patient was readmitted and managed conservatively; 83% of the PN group were discharged on the same day as their surgery, with the remainder discharged the next day. At 7 d after surgery, no patients reported narcotic use. ConclusionsThe SARA approach is feasible and safe. Larger studies are needed to confirm this approach as a one-step solution for upper urinary tract surgery. Patient summaryWe assessed initial outcomes of a novel approach for accessing the retroperitoneum (the space behind the abdominal cavity and in front of the back muscles and spine) during robot-assisted surgery in the upper urinary tract. The patient is placed on their back and surgery is performed with a single-port robot. Our results show that this approach was feasible and safe, with low complication rates, less postoperative pain, and earlier discharge. This is a promising start, but larger studies are needed to confirm our findings.

Retroperitoneoscopic access in organ-preserving treatment of renal cell carcinoma

Background. Renal cell carcinoma is one of the most common urologic cancers. Due to development of modern diagnostic methods, kidney tumors are often diagnosed at early stages (cT1a-T1b). The golden standard of treatment of localized renal cell carcinoma is tumor resection. In retroperitoneoscopic access, the time to artery access is decreased, the risk of intra- and postoperative complications is reduced. Retroperitoneal access is preferable for tumors located on the lateral or posterior kidney surface.Aim. To analyze the results of treatment of patients after retroperitoneoscopic kidney resection.Materials and methods. Between 2018 and 2021, at the A.F. Tsyb Medical Radiological Research Center - branch of the National Medical Research Radiological Center 47 retroperitoneoscopic kidney resections were performed (29 (61.7 %) in men, 18 (38.3 %) in women) due to stage cT1aN0M0 renal cell carcinoma. Retrospective analysis of demographic data, comorbid status, tumor characteristics, operative time, blood loss volume, frequency and severity of complications per the Clavien-Dindo classification was performed. Complexity of resection was evaluated using the R.E.N.A.L. scale.Results. Mean patient age was 63 (38-79) years, body mass index was 29.9 (22-39) kg/m2. Tumor of the left kidney was diagnosed in 24 (51.0 %) cases, of the right kidney - in 22 (46.8 %) cases, bilateral lesions - in 1 (2.2 %) case. Mean tumor size was 22.4 (11-39) mm. Resection had low complexity in 35 (74.5 %) cases, intermediate complexity in 12 (25.5 %) cases. Mean operative time was 156 (80-280) minutes, mean warm ischemia time was 19 (7-32) minutes, number of resections with zero ischemia was 15 (31.9 %), mean blood loss volume was 53 (10-300) mL, number of resections without renal parenchyma suturing was 10 (21.3 %). Mean hospitalization time after surgery was 5 days. Postoperative complications were observed in 4 (8.5 %) cases: bleeding (severity grade II per the Clavien-Dindo classification) in 1 (2.1 %) case, postoperative infectious complications (severity grade II) - in 2 (4.2 %) cases, subcutaneous hematoma (severity grade I) - in 1 (2.1 %) case.Conclusion. Retroperitoneoscopic access is effective and safe. This is confirmed by low frequency and severity of postoperative complications. This access allows to reduce hospitalization time and pain management medication which accelerates patient mobilization and recovery. Comparative analysis shows that retroperitoneoscopic kidney resection has the same effectiveness as laparoscopic resection.

V05-12 ANTERIOR RETROPERITONEAL APPROACH TO THE SINGLE PORT PARTIAL NEPHRECTOMY

You have accessJournal of UrologyCME1 Apr 2023V05-12 ANTERIOR RETROPERITONEAL APPROACH TO THE SINGLE PORT PARTIAL NEPHRECTOMY Grace Chen and Simone Crivellaro Grace ChenGrace Chen More articles by this author and Simone CrivellaroSimone Crivellaro More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003263.12AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Since the Food and Drug Administration’s (FDA) approval of the da Vinci Single-Port (SP) robotic platform in 2018, a wealth of new surgical techniques have been described that capitalize on the SP platform’s proficiency in small spaces. A rarely described technique even among robotic surgeons is the anterior retroperitoneal approach. To our knowledge, this is the first description of this approach utilizing the SP platform in the literature. Our objective is to describe the technique used at our institution for the anterior retroperitoneal single port partial nephrectomy. METHODS: This video abstract uses intraoperative recordings from one patient who underwent a SP partial nephrectomy at our institution. The clinical techniques are described in detail following detailed discussion with an experience robotic surgeon (SC). No pathologic or short-term outcomes were available. RESULTS: Retroperitoneal access was successfully obtained via an anterior incision for a 3.7 cm interpolar mass. The mass was successfully treated without need for conversion to multi-port or open approaches. Total operative time was 192 minutes. Total estimated blood loss (EBL) was 20 cc. The total hospital length of stay (LOS) was 8 hours. The patient was successfully discharged home with a non-narcotic pain control plan. CONCLUSIONS: The anterior retroperitoneal approach to SP robotic partial nephrectomy is safe and feasible. Theoretical advantages of this approach include increased efficiency and decreased positional injuries due to the ability to perform surgery in the supine position, less bowel manipulation, and potentially decreased opioid requirements. Further outcomes data is anticipated. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e428 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Grace Chen More articles by this author Simone Crivellaro More articles by this author Expand All Advertisement PDF downloadLoading ...

Retroperitoneal access for renal masses: Our series and feasibility in high volume renal tumors

Retroperitoneal access for renal masses: Our series and feasibility in high volume renal tumors

Современные подходы к хирургическому лечению деструктивного панкреатита

Pancreonecrosis is diagnosed in about 20% of patients with acute pancreatitis (AP), while 30 – 70% ofthem develop pancreonecrosis infection, which leads to an increase in the mortality rate to 20 – 30%. Minimally invasive methods of surgical treatment of destructive pancreatitis are becoming widespread, amongwhich retroperitoneal access to the pancreatic necrosis zone is of the greatest interest, which is currentlyconsidered as a new standard of treatment for AP. Methods of transmural and percutaneous endoscopicnecrectomy for pancreatic necrosis are being actively introduced.

Single-Position Anterior and Lateral Lumbar Fusion in the Supine Position: A Novel Technique for Multilevel Arthrodesis

Anterior lumbar interbody fusion (ALIF) and lateral lumbar interbody fusion are common techniques that typically require staged procedures when performed in combination. Interest is emerging in single-position surgery to increase operative efficiency. We report a novel surgical technique, supine extended reach lateral fusion, to perform ALIF and lateral lumbar interbody fusion with the patient in a single supine position. A man in his fifties presented with degenerative levoscoliosis, spondylolisthesis, sagittal plane deformity, and progressive low back pain. He was offered L3-S1 anterolateral fusion. With the patient supine, a left abdominal paramedian incision was performed to gain anterior retroperitoneal access, and standard L5-S1 and L4-5 ALIFs were performed. The anterior incision was used for direct visualization, retraction, and bimanual dissection. A left lateral incision was then made to perform an L3-4 lateral lumbar interbody fusion. He subsequently underwent a second-stage L3-S1 posterior percutaneous fixation. The patient tolerated the procedures well, without complications. His postoperative radiograph findings confirmed acceptable implant positioning. He was discharged home in stable condition and was doing well at follow-up. This case description is the first report of the supine extended reach technique, which allows incorporation of anterior and lateral fusion constructs at adjacent levels without changing patient positioning. Many surgeons believe the ALIF to be the most powerful technique for achieving lordosis, and this technique enables concomitant lateral access in a supine position. It can also be used as an alternative strategy when anterior access to the disc space is unobtainable. Further clinical investigation of this technique is warranted.

Minimally invasive techniques in adrenal gland surgery

Today, adrenalectomy can be performed by avariety of laparoscopic and retroperitoneoscopic approaches. Of particular importance are the lateral transperitoneal and the posterior retroperitoneoscopic access routes. Comparative studies of transperitoneal and retroperitoneal procedures still demonstrate heterogeneous results. Nevertheless, retroperitoneal access techniques seem to enable less postoperative pain and afaster recovery. Robotic procedures are gaining in popularity but the final importance cannot yet be determined. All minimally invasive techniques are considered to be so safe and reliable that open approaches are only justified in exceptional cases.

Наш опыт ретроперитонеоскопического иссечения простых кист почек: преимущества и недостатки

bstract Objective. Assess advantages and disadvantages of retroperitoneoscopic access for the resection of renal cysts in clinical practice. Material and methods. For the period from 01/09/2020 tо 30/11/2021, in our center we performed 25 retroperitoneal endoscopic resections of renal cysts. Access was made through Lesgaft-Grunfield triangle. All patients underwent standard clinical evaluation for renal cysts. Results. Retroperitoneal access was performed for all patients by standard technique. All surgeries were finished without conversion to open surgery. Mean duration of surgery was 25,45 ± 2,55 min. Mean intraoperative blood loss was 20,4 ± 0,6 ml. Intra – andpostoperativecomplications, that required extra interventions were not encountered. Meanhospital – instaywas 4,6 ± 0,4 days and patients soon after discharge returned to their daily activities. All patients were under follow-up to 12 months. Conclusion. Retroperitoneal endoscopic access is a good alternative for laparoscopic access for surgical treatment of renal cysts, with less trauma and with no invasion into peritoneal cavity. Timeofrecoveryisthesame aswithlaparoscopy. This technique is also carries good cosmetic effect. One of main advantages is that in this access it is possible to hold high CO2 pressure, that is particularly in patients with ischemic heart disease is undesirable to hold high intraabdominal pressure

Use of a novel Likert scale instrument to assess patient satisfaction following endovascular and surgical treatment of pelvic venous disorders

Objective The study was aimed at assessing satisfaction with endovascular and surgical treatment, using a novel Likert scale procedure satisfaction instrument, in patients with pelvic venous disorder (PeVD) caused by the gonadal vein reflux. Methods This prospective cohort study included 100 women with PeVD who underwent gonadal veins embolization with coils (GVE group, n = 71) or gonadal veins endoscopic resection (GVR group, n = 29) in 2012–2020. The GVE was performed under local anesthesia and sedation, and was left-sided in 61, right-sided in three, and bilateral in seven patients. The GVR was performed under general anesthesia through transperitoneal ( n = 19) or retroperitoneal ( n = 10) access with three access ports in both cases. The GVR was left-sided in 19, right-sided in one, and bilateral in nine patients. To assess satisfaction with GVE and GVR treatment of PeVD, patients were asked to evaluate statements related to their experience using a new Likert scale instrument. The responses for each item were compared between the groups at Day 7 (D7) and at Month 6 (M6) after the procedure, as was a summary score of all the responses at both time points. The summary score allowed categorization on a spectrum from “completely satisfied” to “completely dissatisfied.” Results The comparison between GVЕ and GVR groups at D7 showed that 80% and 100% of patients, accordingly, reported the overall summary satisfaction, 49% and 79% agreed with a complete pelvic pain relief by D7, 79% and 0% agreed with the absence of a significant discomfort during the first postoperative day, 71% and 100% reported no need for analgesics to relief pain in the assess area, 80% and 100% reported fast return to daily activity, and 19.7% and 100% still experienced pelvic pain at D7 (pain in the GVR group was more severe and required the use of analgesics) (all p &lt; .05). At the same time, 94% and 96% patients were satisfied with the aesthetic result of the procedure at D7 ( p = n.s.). The comparison between GVЕ and GVR groups at M6 showed that 100% of patients in both groups reported overall satisfaction with treatment ( p = n.s.), 96% and 100% confirmed a complete pelvic pain relief by M6, 79% and 65% agreed with the absence of a significant discomfort after the procedure, 79% and 65% reported no need for analgesics, 83% and 100% reported about the return to daily activity (all p &lt; .05), and 100% in both groups were satisfied with the aesthetic result of the procedure ( p = n.s.). Conclusions In patients with PeVD, both GVE and GVR are associated with a high, although not significantly different, overall treatment satisfaction in the long term and have advantages and disadvantages. GVE is associated with less severe post-procedural pain, while GVR provides faster relief of pelvic pain and a return to usual daily activity.

Common Hepatic Artery Approach in Difficult Laparoscopic Distal Splenopancreatectomy

Introduction: Laparoscopic distal pancreatectomy is the gold standard nowadays. The infiltration of splenic artery near to its origin as well as engagement of splenic vein near to its confluence with superior mesenteric vein could be a reason for technical difficulties. In such cases the most easily accessible major landmark is the common hepatic artery. Transection of the pancreatic neck and splenic vein is essential to reach the dorsal aspect of the splenic artery at the level of the celiac trunk. The aim of this study is to present our approach to retroperitoneal access of the splenic artery. Methods: We present two cases of laparoscopic distal splenopancreatectomy, one of them for cancer of the pancreatic body, and the other one with pseudocyst of the pancreatic body. Mean age of the two patients was 59.5. Results: Totally laparoscopic splenopancreatectomy with hepatoduodenal and celiac lymph node dissection was performed. Peripancreatic invasion near to the origin of the splenic artery was observed. Stepwise pancreatic transection at the neck, followed by transection of splenic vein were done in both cases. In the second one major venous bleeding occured and was managed by clipping and division of the splenic vein. The mean operative time was 240min with insignificant blood loss. The patients had uneventful hospital stay and were discharged on the 7.5th postoperative day. Conclusions: Laparoscopic distal pancreatectomy can be technically difficult and should be performed only by surgeons with sufficient experience in both open pancreatic surgery and advanced laparoscopic gastrointestinal surgery.

Cost-effectiveness analysis of infected necrotizing pancreatitis management in an academic setting

Background and aimsTraditional management for infected necrotizing pancreatitis (INP) often utilizes open necrosectomy, which carries high morbidity and complication rates. Thus, minimally invasive strategies have gained favor, specifically step-up approaches utilizing endoscopic or minimally-invasive surgery (MIS); however, the ideal management modality for INP has not been identified. MethodsA decision tree model was designed to analyze costs and survival associated with open necrosectomy, endoscopic step-up, and MIS step-up protocols for management of INP after 4 weeks of necrosis development with adequate retroperitoneal access. Costs were based on a third-party payer perspective using Medicare reimbursement rates. The model's effectiveness was represented by quality-adjusted life-years (QALYs). Sensitivity analyses were performed to validate results. ResultsEndoscopic step-up was the dominant economic strategy with 7.92 QALYs for $90,864.09. Surgical step-up resulted in a decrease of 0.09 QALYs and a cost increase of $10,067.89 while open necrosectomy resulted in a decrease of 0.4 QALYs and an increased cost of $18,407.52 over endoscopic step-up. In 100,000 random-sampling simulations, 65.5% of simulations favored endoscopic step-up. MIS step-up was favored when MIS acute mortality rates fell and when MIS drainage success rates rose. ConclusionsIn our simulated patients with INP, the most cost-effective management strategy is endoscopic step-up. Cost-effectiveness varies with changes in acute mortality and drainage success, which will depend on local expertise.