Characteristics of contralateral carcinomas in patients with differentiated thyroid cancer larger than 1 cm

Purpose: Traditionally, total thyroidectomy has been advocated for patients with tumors larger than 1 cm. However, according to the ATA and NCCN guidelines (2015, USA), patients with tumors up to 4 cm are now eligible for lobectomy. A rationale for adhering to total thyroidectomy might be the presence of contralateral carcinomas. The purpose of this study was to describe the characteristics of contralateral carcinomas in patients with differentiated thyroid cancer (DTC) larger than 1 cm. Methods: A retrospective study was performed including patients from 17 centers in 5 countries. Adults diagnosed with DTC stage T1b-T3 N0-1a M0 who all underwent a total thyroidectomy were included. The primary endpoint was the presence of a contralateral carcinoma. Results: A total of 1

Characteristics of contralateral carcinomas in patients with differentiated thyroid cancer larger than 1 cm

textabstractPurpose: Traditionally, total thyroidectomy has been advocated for patients with tumors larger than 1 cm. However, according to the ATA and NCCN guidelines (2015, USA), patients with tumors up to 4 cm are now eligible for lobectomy. A rationale for adhering to total thyroidectomy might be the presence of contralateral carcinomas. The purpose of this study was to describe the characteristics of contralateral carcinomas in patients with differentiated thyroid cancer (DTC) larger than 1 cm. Methods: A retrospective study was performed including patients from 17 centers in 5 countries. Adults diagnosed with DTC stage T1b-T3 N0-1a M0 who all underwent a total thyroidectomy were included. The primary endpoint was the presence of a contralateral carcinoma. Results: A total of 1313 patients were included, of whom 426 (32 %) had a contralateral carcinoma. The contralateral carcinomas consisted of 288 (67 %) papillary thyroid carcinomas (PTC), 124 (30 %) follicular variant of a papillary thyroid carcinoma (FvPTC), 5 (1 %) follicular thyroid carcinomas (FTC), and 3 (1 %) Hürthle cell carcinomas (HTC). Ipsilateral multifocality was strongly associated with the presence of contralateral carcinomas (OR 2.62). Of all contralateral carcinomas, 82 % were ≤10 mm and of those 99 % were PTC or FvPTC. Even if the primary tumor was a FTC or HTC, the contralateral carcinoma was (Fv)PTC in 92 % of cases. Conclusions: This international multicenter study performed on patients with DTC larger than 1 cm shows that contralateral carcinomas occur in one third of patients and, independently of primary tumor subtype, predominantly consist of microPTC

Multifactorial Analysis of the Learning Curve for Totally Robotic Roux-en-Y Gastric Bypass for Morbid Obesity

International audienceBackgroundLaparoscopic Roux-en-Y gastric bypass is one of the most commonly performed bariatric operation worldwide for the surgical management of obesity. Totally robotic Roux-en-Y gastric bypass (TR-RYGBP) has been considered to be a better approach by some groups especially early in a surgeon's experience. However, the learning curve associated with TR-RYGBP has been poorly evaluated yet. The aim of this study was to evaluate the learning curve of patients who underwent TR-RYGBP.MethodsThis is a prospective study of 154 first consecutive patients undergoing TR-RYGBP to analyze the influence of surgeon experience, bedside first assistant, and patient factors on operative time and postoperative complications. To give a comprehensive view of success related to the learning process, a single hybrid variable was generated. Multivariate analysis predicted the risk factors for complications and operative time. A risk-adjusted cumulative sum analysis estimated the learning curve.ResultsThe learning curve for TR-RYGBP was 84 cases. Case rank and first assistant level were independent predictors of total operative time. Overall 30-day postoperative morbidity rate was 33.1 % and decreased over time. Surgeon experience (OR 2.6; CI 95 [1.290 to 5.479]; p = 0.0081) and first assistant level (OR 2.42; CI 95 [1.197 to 4.895]; p = 0.0139) remained independent predictors of composite event (operative time and complications).ConclusionsThis study identifed criteria that should be assessed in future studies about TR-RYGBP. Both surgeon experience and bedside first assistant level affected operative duration, but surgeon experience was the most significant factor in reducing complication rates

Conversion During Laparoscopic Adrenalectomy for Pheochromocytoma : A Cohort Study in 244 Patients

BACKGROUND: Recent advances in anesthetic and laparoscopic surgical management have improved perioperative outcomes in patients with pheochromocytoma. However, patients converted to laparotomy during laparoscopic adrenalectomy for pheochromocytoma have never been evaluated specifically in terms of intraoperative hemodynamic instability and postoperative complications. METHODS: Retrospective analysis of prospectively maintained databases in five medical centers from 2002 to 2013. Inclusion criteria were consecutive patients who underwent laparoscopic unilateral total adrenalectomy for pheochromocytoma. RESULTS: Two hundred forty-four patients were included. Mean tumor size was 43.9 ± 20 mm with 92 patients (38%) having a tumor diameter > 50 mm. During adrenalectomy, 19 of 244 patients (7.7%) had to be converted to laparotomy. In multivariable analysis, the need for preoperative hospitalization (3.379, 1.209-9.445; P = 0.020), tumor size > 6 cm (2.97, 0.996-8.868; P = 0.050), and ratio of intraoperative systolic blood pressure >200 mmHg duration to anesthesia duration (1.060, 1.007-1.117; P = 0.027) remained significantly associated with conversion. Conversion was significantly associated with postoperative grade II-V Clavien morbidity rate (4.259, 1.471-12.326; P = 0.007) and duration of hospitalization (12.92, 2.90-58.82; P < 0.001). CONCLUSIONS: This study shows that preoperative hospitalization and larger tumor were more frequent in patients undergoing conversion to laparotomy during laparoscopic adrenalectomy for pheochromocytoma. Conversion is associated with increased intraoperative hypertensive episodes and postoperative complications rate. Clinicians should be cognizant of these risks and prepare patients appropriately for conversion when deemed necessary

Hook needle-guided excision of recurrent differentiated thyroid cancer in previously operated neck compartments: a safe technique for small, nonpalpable recurrent disease

As a result of more sensitive techniques to detect recurrent thyroid cancer, the number of patients presenting with small, nonpalpable recurrent thyroid cancer in cervical lymph nodes is increasing. Surgical excision of nonpalpable recurrent thyroid cancer can be difficult, particularly in a previously operated area