Publications by authors named "Tara M Pattilachan"

Robotic platforms are increasingly utilized in surgery, offering unique technical advantages, though there is a scarcity of difficulty scoring systems (DSS) for these procedures. DSS aids in understanding operative complexities and enhancing preoperative planning. With IRB approval, data were collected on 200 consecutive adult patients who underwent robotic pancreaticoduodenectomy at a high-volume institution from 2019 to 2022.

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This study sought to identify the primary reasons for hospital readmissions and examine patient outcomes and associated costs following readmission after robotic pancreaticoduodenectomy. We conducted a retrospective analysis of 435 patients who underwent robotic pancreaticoduodenectomy between 2012 and 2024. Readmitted patients within 30 days post-surgery were compared to non-readmitted patients using Student's t-test and Fisher's exact test.

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Article Synopsis
  • The study examined the outcomes of three types of challenging liver resections in a minimally invasive setting: isolated caudate resection (ICR), en-bloc caudate resection with hepatic lobectomy (ECR), and posterosuperior segment resection (PSR).
  • Out of 500 patients followed, ICR had the shortest operation time, lowest estimated blood loss (EBL), and shortest length of stay (LOS), while ECR had longer durations and complications compared to both ICR and PSR.
  • The findings indicate that robotic resection for difficult liver tumors is safe and effective, suggesting that minimally invasive techniques can be utilized successfully with the right level of expertise.
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Introduction: As the robotic approach in hepatectomy gains prominence, the need to establish a robotic-specific difficulty scoring system (DSS) is evident. The Tampa Difficulty Score was conceived to bridge this gap, offering a novel and dedicated robotic DSS aimed at improving preoperative surgical planning and predicting potential clinical challenges in robotic hepatectomies. In this study, we internally validated the recently published Tampa DSS by applying the scoring system to our most recent cohort of patients.

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Esophageal adenocarcinoma incidence is increasing in Western nations. There has been a shift toward minimally invasive approaches for transhiatal esophagectomy (THE). This study compares the outcomes of robotic THE for esophageal adenocarcinoma resection at our institution with the predicted metrics from the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP).

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Gastric cancer remains a formidable health challenge worldwide; early detection and effective surgical intervention are critical for improving patient outcomes. This comprehensive review explores the evolving landscape of gastric cancer management, emphasizing the significant contributions of artificial intelligence (AI) in revolutionizing both diagnostic and therapeutic approaches. Despite advancements in the medical field, the subtle nature of early gastric cancer symptoms often leads to late-stage diagnoses, where survival rates are notably decreased.

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Background: This research is the first study in the United States to document more than a decade of experience with 530 patients who underwent robotic hepatectomy at a single high-volume institution.

Methods: With institutional review board approval, a prospectively collected database of consecutive patients who underwent robotic hepatectomy from 2012 to January 2024 was reviewed. Data are presented as median (mean ± SD).

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Background: The IWATE criteria, a four-level classification system for laparoscopic hepatectomy, measures technical complexity but lacks studies on its impact on outcomes and costs, especially in robotic surgeries. This study evaluated the effects of technical complexity on perioperative outcomes and costs in robotic hepatectomy.

Methods: Since 2013, we prospectively followed 500 patients who underwent robotic hepatectomy.

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Background: Benign biliary disease (BBD) is a prevalent condition involving patients who require extrahepatic bile duct resections and reconstructions due to nonmalignant causes.

Methods: This study followed all patients who underwent biliary resections for BBD between 2015 and 2023. We excluded those with malignant conditions and patients who had an 'open' operation.

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Pancreatic adenocarcinoma, increasingly diagnosed in the United States, has a disheartening initial resection rate of 15%. Neoadjuvant therapy, particularly FOLFIRINOX and gemcitabine-based regimens, is gaining favor for its potential to improve resectability rates and achieving microscopically negative margins (R0) in borderline resectable cases, marked by intricate arterial or venous involvement. Despite surgery being the sole curative approach, actual benefit of neoadjuvant therapy remains debatable.

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Our study provides a comparative analysis of the Laparo-Endoscopic Single Site (LESS) and robotic surgical approaches for distal pancreatectomy and splenectomy, examining their cosmetic advantages, patient outcomes, and operative efficiencies through propensity score matching (PSM). We prospectively followed 174 patients undergoing either the LESS or robotic procedure, matched by cell type, tumor size, age, sex, and BMI from 2012 to 2023. Propensity score matching (PSM) was utilized for data adjustment, with results presented as median (mean ± SD).

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Introduction: Despite numerous benefits offered, robotic procedures take longer than "open" procedures. With the intent to reduce operative duration, we examined the degree each operative step contributes to operative duration in robotic pancreaticoduodenectomy.

Materials And Methods: With IRB approval, we prospectively followed 88 patients to determine the duration of robotic pancreaticoduodenectomy, and the duration of 12 key steps.

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Background: IWATE, Institut Mutualiste Montsouris (IMM), and Southampton are established difficulty scoring systems (DSS) for laparoscopic hepatectomy, yet none specifically address robotic hepatectomy. Our study evaluates these 3 DSS for predicting perioperative outcomes in robotic hepatectomy.

Methods: With IRB approval, we prospectively followed 359 consecutive patients undergoing robotic hepatectomies, assessing categorical metrics like conversions to open, intra/postoperative issues, Clavien-Dindo Score (≥III), 30 and 90-day mortality, and 30-day readmissions using Receiver Operating Characteristic (ROC) curves and Area Under the Curve (AUC) to determine efficacy in predicting their occurrence for each DSS.

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Background: As the first comprehensive investigation into hospital readmissions following robotic hepatectomy for neoplastic disease, this study aims to fill a critical knowledge gap by evaluating risk factors associated with readmission and their impact on survival and the financial burden.

Methods: The study analyzed a database of robotic hepatectomy patients, comparing readmitted and non-readmitted individuals post-operatively using 1:1 propensity score matching. Statistical methods included Chi-square, Mann-Whitney U, T-test, binomial logistic regression, and Kaplan-Meier analysis.

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Background: The increasing use of robotic systems for anti-reflux operations prompted this study to evaluate and compare the efficacy of robotic and Laparo-Endoscopic Single-Site (LESS) approaches.

Methods: From 2012, 228 robotic fundoplication and 518 LESS fundoplication patients were prospectively followed, analyzing perioperative metrics. Data are presented as median (mean ± SD); significance at p ≤ 0.

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Background: The correlation between body mass index (BMI) and surgical outcomes has emerged as a critical consideration in complex abdominal operations. While elevated BMI is often associated with increased perioperative risk, its specific effects on the outcomes of robotic surgeries remain inadequately explored. This study assesses the impact of BMI on perioperative variables of complex esophageal and hepatopancreaticobiliary (HPB) robotic operations.

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The influence of Medicaid or being uninsured is prevailingly thought to negatively impact a patient's socioeconomic and postoperative course, yet little has been published to support this claim specifically in reference to robotic pancreaticoduodenectomy. This study was undertaken to determine impact of health insurance type on perioperative outcomes in patients undergoing robotic pancreaticoduodenectomy. Following IRB approval, we prospectively followed 364 patients who underwent robotic pancreaticoduodenectomy.

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Esophageal cancer is a significant health concern, with the robotic platform being increasingly adopted for transhiatal esophagectomy (THE). While literature exists regarding the cost of robotic THE and its benefits, there is limited data analyzing cost and concurrent hospital reimbursement based on payor or provider. This study aimed to compare hospital reimbursement after robotic THE for patients with Medicare versus private insurance.

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Background: Robotic platform usage for distal pancreatectomy and splenectomy has grown exponentially in recent years. This study aims to identify the impact of readmission following robotic distal pancreatectomy and splenectomy and to analyze the financial implications of these readmissions.

Methods: We prospectively followed 137 patients after robotic distal pancreatectomy and splenectomy.

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