Microfracture-coagulation for the real robotic liver parenchymal transection.

The use of the robotic approach in liver surgery is exponentially increasing. Although technically the robot introduces several innovative features, the instruments linked with the traditional laparoscopic approach for the liver parenchymal transection are not available, which may result in multiple technical variants that may bias the comparative analysis between the different series worldwide. A real robotic approach, minimally efficient for the liver parenchymal transection, with no requirement of external tool, available for the already existing platforms, and applicable to any type of liver resection, counting on the selective use of the plugged bipolar forceps and the monopolar scissors, or "microfracture-coagulation" (MFC) transection method, is described in detail. The relevant aspects of the technique, its indications and methodological basis are discussed.

Usefulness of intraoperative bile culture in patients with acute calculous cholecystitis with previous biliary events: does the postoperative management change?

PURPOSE: The aim of our study was to determine the usefulness of intraoperative gallbladder cultures in the postoperative course in surgically treated patients with acute calculous cholecystitis and previous biliary events (ACC-PBE). METHODS: Retrospective unicenter study on surgically treated ACC-patients between January 2014 and December 2018. Clinical benefit was defined as a > 20% change in postoperative antibiotic treatment. Secondary endpoints: postoperative morbidity and length-of-stay (LOS) in ACC-PBE patients with positive intraoperative biliary culture (IBC). Statistical significance was defined as p < 0.05. RESULTS: Out of the initial 711 patients, 203 met the study's inclusion criteria, with 139 of them having IBC results (72 positive, 67 negative). Our analysis revealed no significant difference in the incidence of positive-IBC between patients with ACC-PBE. Among this group, only 6% changed postoperative antibiotic treatment based on IBC results. There were no statistically significant differences in postoperative complications (p: 0.21) or LOS (p: 0.23) in the ACC-PBE group. In multivariate analysis, age > 70 years old (p: 0.00; HR 3.1, 95% IC [1.6-6.4]), prior ERCP (p: 0.02; HR 5.9, 95% IC [1.25-27.5]) and prior antibiotic treatment (p: 0.01; HR 3.6, 95% IC [1.32-9.86]) were identified as independent factors that influenced PBC. CONCLUSIONS: IBC in operated ACC-PBE do not alter postoperative management. While positive-IBC was associated with age, prior ERCP, and prior antibiotic treatment, these findings did not have a significant impact on postoperative morbidity or LOS.

Cirugía robótica hepática: una nueva realidad. Análisis descriptivo de 220 casos de cirugía hepática mínimamente invasiva en 182 pacientes / Robotic liver surgery: A new reality. Descriptive analysis of 220 cases of minimally invasive liver surgery in 182 patients

Introducción El nivel de recomendación del abordaje robótico en la cirugía hepática es controvertido. Se realiza un análisis descriptivo, retrospectivo yunicéntrico de los resultados a corto plazo de la cirugía hepática robótica y laparoscópica en un mismo periodo.MétodosAnálisis descriptivo del abordaje robótico y laparoscópico sobre 220 resecciones en 182 pacientes sometidos a cirugía hepática mínimamente invasiva.ResultadosEntre abril de 2018 y junio de 2022 se realizaron 92 resecciones hepáticas robóticas (RHR) en 83 pacientes y 128 laparoscópicas (RHL) en 99 pacientes. Se observaron más resecciones mayores (p<0,001) y más resecciones múltiples (p=0,002) en el grupo CHL. El porcentaje de resecciones anatómicas fue similar (RHR: 64,1 vs. RHL: 56,3%). En el grupo CHL el tiempo medio operatorio fue de 212min (DE: 52,1), las pérdidas hemáticas de 276,5ml (100-1.000) y la tasa de conversión del 12,1%. La estancia media hospitalaria fue de 5,7 días (DE: 4,9), la morbilidad fue del 27,3%, con un 2% de mortalidad. En el grupo CHR el tiempo medio operatorio fue de 217min (DE: 53,6), las pérdidas hemáticas fueron de 169,5ml (100-900) y la tasa de conversión del 2,5%. La estancia media hospitalaria fue de 4,1 días (DE: 2,1) y la morbilidad fue del 15%, con mortalidad nula.ConclusiónLa cirugía mínimamente invasiva hepática es una técnica segura y reproducible. La CHR permite realizar resecciones hepáticas con seguridad y parece ser una técnica no inferior a la CHL, pero para determinar el abordaje mínimamente invasivo de elección en cirugía hepática se requieren estudios aleatorizados. (AU)

Introduction The level of recommendation of the robotic approach in liver surgery is controversial. The objective of the study is to carry out a single-center retrospective descriptive analysis of the short-term results of the robotic and laparoscopic approach in liver surgery during the same period.MethodsDescriptive analysis of the short-term results of the robotic and laparoscopic approach on 220 resections in 182 patients undergoing minimally invasive liver surgery.ResultsBetween April 2018 and June 2022, a total of 92 robotic liver resections (RLR) were performed in 83 patients and 128 laparoscopic (LLR) in 99 patients. The LLR group showed a higher proportion of major surgery (P<.001) and multiple resections (P=.002). The two groups were similar in anatomical resections (RLR 64.1% vs. LLR 56.3%). In the LLS group, the average operating time was 212min (SD 52.1). Blood loss was 276.5ml (100-1000) and conversion 12.1%. Mean hospital stay was 5.7 (SD 4.9) days. Morbidity was 27.3% and 2% mortality. In the RLS group, the mean operative time was 217min (SD 53.6), blood loss 169.5ml (100.900), and conversion 2.5%. Mean hospital stay was 4.1 (SD 2.1) days. Morbidity was 15%, with no mortality.ConclusionMinimally invasive liver surgery is a safe technique, and in particular, RLS allows liver resections to be performed safely and reproducibly; it appears to be a non-inferior technique to LLS, but randomized studies are needed to determine the minimally invasive approach of choice in liver surgery. (AU)

Pancreatectomía corporocaudal laparoscópica y robótica, de elección y de futuro / Laparoscopic and robotic distal pancreatectomy: The choice and the future

Introducción La pancreatectomía distal (PD) mínimamente invasiva (MIS) está actualmente bien establecida, ya sea mediante técnica laparoscópica (PDL) o robótica (PDR).MétodosDe 83 PD realizadas entre enero del 2018 y marzo del 2022, se realizaron 57 casos (68,7%) mediante MIS, 35 PDL y 22 PDR (da Vinci Xi). Se evalúa la experiencia de ambos procedimientos y el valor del abordaje robótico. Se analizan en detalle los casos de conversión.ResultadosEl tiempo quirúrgico medio en las PDL y PDR fue de 201,2 (DE 47,8) y 247,54 (DE 35,8) min, (p=0,486). No se observaron diferencias en estancia hospitalaria ni en tasa de conversión, 6 (5-34) vs. 5,6 (5-22) días y 4 (11,4%) vs. 3 (13,6%) casos, respectivamente, (p=0.126). La tasa de reingresos fue de 3/35 (11,4%) y 6/22 (27,3%) casos, PDL vs. PDR respectivamente, (p=0.126).No existieron diferencias en morbilidad (Dindo-Clavien ≥ III) entre ambos grupos. La mortalidad fue de un caso en el grupo robótico (un paciente con conversión precoz por afectación vascular). La tasa de resecciones R0 fue mayor en el grupo robótico (77,1% vs. 90,9%) alcanzando la significación estadística, p=0,04.ConclusionesLa PDMIS es un procedimiento seguro y factible en pacientes seleccionados. Una planificación quirúrgica y la implementación escalonada basada en la experiencia previa ayudan a afrontar procedimientos técnicamente exigentes. Se sugiere que la PDR podría ser el abordaje de elección en la pancreatectomía corporocaudal, no siendo inferior a la PDL. (AU)

Introduction Distal pancreatectomy (DP) is currently well established as a minimally invasive surgery (MIS) procedure, using either a laparoscopic (LDP) or robotic (RDP) approach.MethodsOut of 83 DP performed between January 2018 and March 2022, 57 cases (68.7%) were performed using MIS: 35 LDP and 22 RDP (da Vinci Xi). We have assessed the experience with the 2techniques and analyzed the value of the robotic approach. Cases of conversion have been examined in detail.ResultsThe mean operative times for LDP and RDP were 201.2 (SD 47.8) and 247.54 (SD 35.8)min, respectively (p=0,486). No differences were observed in length of hospital stay or conversion rate: 6 (5–34) vs. 5.6 (5–22) days, and 4 (11.4%) vs. 3 (13.6%) cases, respectively (p=0.126). The readmission rate was 3/35 patients (11.4%) treated with LDP and 6/22 (27.3%) cases of RDP (p=0.126).There were no differences in morbidity (Dindo-Clavien≥III) between the 2groups. Mortality was one case in the robotic group (a patient with early conversion due to vascular involvement). The rate of R0 resection was greater and statistically significant in the RDP group (77.1% vs. 90.9%) (P=,04).ConclusionsMinimally invasive distal pancreatectomy (MIDP) is a safe and feasible procedure in selected patients. Surgical planning and stepwise implementation based on prior experience help surgeons successfully perform technically demanding procedures. RDP could be the approach of choice in distal pancreatectomy, and it is not inferior to LDP. (AU)

Evaluation of the validated intraoperative bleeding scale in liver surgery: study protocol for a multicenter prospective study.

Background: Surgical hemostasis has become one of the key principles in the advancement of surgery. Hemostatic agents are commonly administered in many surgical specialties, although the lack of consensus on the definition of intraoperative bleeding or of a standardized system for its classification means that often the most suitable agent is not selected. The recommendations of international organizations highlight the need for a bleeding severity scale, validated in clinical studies, that would allow the selection of the best hemostatic agent in each case. The primary objective of this study is to evaluate the VIBe scale (Validated Intraoperative Bleeding Scale) in humans. Secondary objectives are to evaluate the scale's usefulness in liver surgery; to determine the relationship between the extent of bleeding and the hemostatic agent used; and to assess the relationship between the grade of bleeding and postoperative complications. Methods: Prospective multicenter observational study including 259 liver resections that meet the inclusion criteria: patients scheduled for liver surgery at one of 10 medium-high volume Spanish HPB centers using an open or minimally invasive approach (robotic/laparoscopic/hybrid), regardless of diagnosis, ASA score <4, age ≥18, and who provide signed informed consent during the study period (September 2023 until the required sample size has been recruited). The participating researchers will be responsible for collecting the data and for reporting them to the study coordinators. Discussion: This study will allow us to evaluate the VIBe scale for intraoperative bleeding in humans, with a view to its subsequent incorporation in daily clinical practice. Clinical Trial Registration: https://clinicaltrials.gov/ct2/show/NCT05369988?term = serradilla&draw = 2&rank = 3, [NCT0536998].

Morbidity and mortality of elderly patients with pancreaticobiliary disease according to age and comprehensive geriatric assessment: A prospective observational study.

BACKGROUND: This study was designed to analyze the influence of age and comprehensive geriatric evaluation on clinical results of pancreaticobiliary disease management in elderly patients. METHODS: A prospective observational study has been undertaken, including 140 elderly patients (over 75 years) with benign pancreaticobiliary disease. Patients were divided according to age in the following groups: group 1: 75-79 years old; group 2: 80-84 years old; group 3: 85 years and older. They underwent a comprehensive geriatric assessment with different scales: Barthel Index, Pfeiffer Index, Charlson Index, and Fragility scale, at admission and had been follow-up 90 days after hospital discharge to analyze its influence on morbidity and mortality. RESULTS: Overall, 140 patients have been included (group 1=51; group 2=43 and group 3=46). Most of them, 52 cases (37.8%), had acute cholecystitis, followed by 29 cases of acute cholangitis (20.2%) and acute pancreatitis with 25 cases (17.9%). Significant differences has been observed on complications in different age groups (p=0.033). Especially in patients with a Barthel Index result ≤60, which suggests that these less functional patients had more severe complications after their treatment (p=0.037). The mortality rate was 7.1% (10 patients). CONCLUSIONS: No significant differences were found between age, morbidity and mortality in elderly patients with pancreaticobiliary disease. Comprehensive geriatric scales showed some utility in their association with specific complications.

Realidad aumentada en cirugía hepato-bilio-pancreática. Una tecnología al alcance de la mano / Augmented reality in hepatobiliary-pancreatic surgery: A technology at your fingertips

La realidad aumentada es una tecnología que abre nuevas posibilidades en cirugía. Se presenta su implementación en una unidad de cirugía hepato-bilio-pancreática en relación con la planificación preoperatoria, el soporte intraoperatorio y la docencia. Para la planificación quirúrgica se han utilizado reconstrucciones 3D de la TC y de la RMN para hacer una evaluación de casos complejos, siendo la interpretación de la anatomía más precisa, y la planificación de la técnica más simple. A nivel intraoperatorio ha permitido la conexión remota holográfica entre especialistas, la substitución de elementos físicos por elementos virtuales, y el uso de modelos virtuales de consulta y guía quirúrgica. En docencia se han impartido clases que incluyen la retransmisión de una cirugía con el soporte de elementos virtuales para una mejor comprensión por parte de los estudiantes. Siendo la experiencia satisfactoria, la realidad aumentada podría aplicarse en el futuro de la cirugía hepato-bilio-pancreática para mejorar sus resultados. (AU)

Augmented reality is a technology that opens new possibilities in surgery. Its implementation in a hepatobiliary-pancreatic surgery unit is presented in relation to preoperative planning, intraoperative support and teaching. For surgical planning, 3D CT and MRI reconstructions have been used to evaluate complex cases, making the interpretation of the anatomy more precise and the planning of the technique simpler. At an intraoperative level, it has allowed remote holographic connection between specialists, the substitution of physical elements for virtual elements, and the use of virtual consultation models and surgical guides. In teaching, new lessons include the retransmission of a surgery with the support of virtual elements for a better understanding by the students. Being the experience satisfactory, augmented reality could be applied in the future of hepatobiliary-pancreatic surgery to improve its results. (AU)

Análisis retrospectivo de los resultados a largo plazo de la estrategia inversa en pacientes con cáncer colorrectal y enfermedad hepática metastásica sincrónica avanzada / Long-term results of liver-first approach strategy in patients with advanced synchronous liver metastases from colorectal cancer

Introducción: La estrategia inversa (EI) es un esquema indicado en pacientes con cáncer colorrectal (CCR) y metástasis hepáticas sincrónicas (MHS) avanzadas. Incluye quimioterapia neoadyuvante, seguido de resección hepática y, por último, resección del CCR. Material: Estudio descriptivo retrospectivo sobre una base de datos prospectiva de hepatectomías por metástasis hepáticas de CCR en 2 centros entre 2007 y 2019. Se incluyeron 88 pacientes con CCR y MHS. La enfermedad hepática fue bilobar en un 65,9%, el número y el tamaño medio de las lesiones fue de 5,5 y 42,7mm, respectivamente. La respuesta radiológica al tratamiento se evaluó mediante criterios RECIST. La supervivencia libre de progresión (SLP) y la supervivencia global (SG) media se estimaron mediante el método de Kaplan-Meier y regresión de Cox.Resultados: De los 88 pacientes, 75 completaron la EI (85,2%). La respuesta radiológica fue parcial en el 75,7% y la estabilización en el 22,8%. La tasa de morbilidad (Clavien-Dindo ≥IIIA) tras la cirugía hepática y colorrectal fue del 29,4 y 9,3%, respectivamente. No hubo mortalidad a los 90 días. La tasa de recurrencia fue del 76%. Se diagnosticaron 106 recurrencias en 56 pacientes. De estos, se realizó tratamiento quirúrgico asociado a quimioterapia en 34 (32,1%). La SLP fue de 8,5 meses y la SG a 5 años fue del 53%. Conclusiones: En pacientes con CCR y MHS la EI permite el control inicial de la enfermedad metastásica, seleccionar pacientes respondedores a la neoadyuvancia y optimizar las posibilidades de resección completa, influyendo en la supervivencia a largo plazo. (AU)

Background: The “liver-first” approach (LFA) is a strategy indicated for advanced synchronous liver metastases (ASLM) from colorectal cancer (CRC). Includes neoadjuvant chemotherapy, resection of the ASLM followed by CRC resection.Methods: Retrospective descriptive analysis from a prospective database of hepatectomies from liver metastases (LM) from CRC in two centers. Between 2007-2019, 88 patients with CRC-ASLM were included in a LFA scheme. Bilobar (LM) was present in 65.9%, the mean number of lesions was 5.5 and mean size 42.7mm. Response to treatment was assessed by RECIST criteria. Progression-free survival (PFS) and overall survival (OS) were estimated using Kaplan-Meier survival curves. Results: Seventy-five of 88 patients (85.2%) completed the LFA. RECIST evaluation showed partial response in 75.7% and stable disease in 22.8%. Severe morbidity rate (Clavien–Dindo ≥ IIIA) after liver and colorectal surgery was present in 29.4% and 9.3%, respectively. There was no 90-day postoperative mortality in both liver and colorectal surgeries. Recurrence rate was 76%, being the liver the most frequent site, followed by the pulmonary. From the total number of recurrences (106) in 56 patients, surgical with chemotherapy rescue treatment was accomplished in 34 of them (32.1%). The mean PFS was 8.5 and 5-year OS was 53%. Conclusions: In patients with CRC-ASLM the LFA allows control of the liver disease beforehand and an assessment of the tumor response to neoadjuvant chemotherapy, optimising the chance of potentially curative liver resection, which influences long-term survival. (AU)

Robotic liver surgery: A new reality. Descriptive analysis of 220 cases of minimally invasive liver surgery in 182 patients.

INTRODUCTION: The level of recommendation of the robotic approach in liver surgery is controversial. The objective of the study is to carry out a single-center retrospective descriptive analysis of the short-term results of the robotic and laparoscopic approach in liver surgery during the same period. METHODS: Descriptive analysis of the short-term results of the robotic and laparoscopic approach on 220 resections in 182 patients undergoing minimally invasive liver surgery. RESULTS: Between April 2018 and June 2022, a total of 92 robotic liver resections (RLR) were performed in 83 patients and 128 laparoscopic (LLR) in 99 patients. The LLR group showed a higher proportion of major surgery (P < .001) and multiple resections (P = .002). The two groups were similar in anatomical resections (RLR 64.1% vs. LLR 56.3%). In the LLS group, the average operating time was 212 min (SD 52.1). Blood loss was 276.5 mL (100-1000) and conversion 12.1%. Mean hospital stay was 5.7 (SD 4.9) days. Morbidity was 27.3% and 2% mortality. In the RLS group, the mean operative time was 217 min (SD 53.6), blood loss 169.5 mL (100.900), and conversion 2.5%. Mean hospital stay was 4.1 (SD 2.1) days. Morbidity was 15%, with no mortality. CONCLUSION: Minimally invasive liver surgery is a safe technique, and in particular, RLS allows liver resections to be performed safely and reproducibly; it appears to be a non-inferior technique to LLS, but randomized studies are needed to determine the minimally invasive approach of choice in liver surgery.

Laparoscopic and robotic distal pancreatectomy: the choice and the future.

INTRODUCTION: Distal pancreatectomy (DP) is currently well established as a minimally invasive surgery (MIS) procedure, using either a laparoscopic (LDP) or robotic (RDP) approach. METHODS: Out of 83 DP performed between January 2018 and March 2022, 57 cases (68.7%) were performed using MIS: 35 LDP and 22 RDP (da Vinci Xi). We have assessed the experience with the two techniques and analyzed the value of the robotic approach. Cases of conversion have been examined in detail. RESULTS: The mean operative times for LDP and RDP were 201.2 (SD 47.8) and 247.54 (SD 35.8) minutes, respectively (P = NS). No differences were observed in length of hospital stay or conversion rate: 6 (5-34) vs. 5.6 (5-22) days, and 4 (11.4%) vs. 3 (13.6%) cases, respectively (P = NS). The readmission rate was 3/35 patients (11.4%) treated with LDP and 6/22 (27.3%) cases of RDP (P = NS). There were no differences in morbidity (Dindo-Clavien ≥ III) between the two groups. Mortality was one case in the robotic group (a patient with early conversion due to vascular involvement). The rate of R0 resection was greater and statistically significant in the RDP group (77.1% vs. 90.9%) (P = .04). CONCLUSION: Minimally invasive distal pancreatectomy (MIDP) is a safe and feasible procedure in selected patients. Surgical planning and stepwise implementation based on prior experience help surgeons successfully perform technically demanding procedures. RDP could be the approach of choice in distal pancreatectomy, and it is not inferior to LDP.