Diagnostic laparoscopy: indications and benefits

Rau, Beate

doi:10.1007/s00423-004-0483-x

Cited by 12 publications

(3 citation statements)

References 45 publications

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“…This offers improved accuracy in the detection of intraabdominal tumor spread than CT (Chang et al 2009). In general, staging laparoscopy is recommended in patients with locally advanced (uT3/4) AEG type II and III tumors where a neoadjuvant treatment is planned (Rau and Hunerbein 2005). Without preoperative chemotherapy, the laparoscopy can be performed in the setting of the planned primary resection.…”

Section: Staging Laparoscopy Excludes Peritoneal Diseasementioning

confidence: 99%

Clinical Staging of Adenocarcinoma of the Esophagogastric Junction

Cordin¹,

Lehmann²,

Schneider

2009

Adenocarcinoma of the Esophagogastric Junction

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Tumors of the esophagogastric junction are among the most frequent and cause lethal cancers. Patients often do not present until late in the disease when the tumor is sufficiently large to cause obstruction or invasion of the adjacent structures, and thus becomes symptomatic. Preoperative staging is critical to select those patients whose disease is still locally confined for curative surgery. Ideally, clinical staging should accurately predict tumor invasion, lymph node involvement, and distant metastases. Upper endoscopy establishes the tumor diagnosis by multiple biopsies and defines the tumor type (Siewert I-III), based on tumor localization in relation to the endoscopic cardia. Preoperative TNM staging has a strong impact on treatment strategy. Endoscopic Ultrasound (EUS) determines the T category, and to a lesser extent, the presence of lymph node metastases. Multislice Computed Tomography (CT) and 18Fluorode-ocx-glucose Positron Emission Computed Tomography (18FDG-PET-CT) provide further information, especially about systemic metastases. Diagnostic laparascopy is suggested in advanced (CT3/4) Siewert type II-III tumors to exclude peritoneal carcinomatosis. This chapter summarizes current staging modalities and their accuracy in clinical practice.

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Section: Staging Laparoscopy Excludes Peritoneal Diseasementioning

confidence: 99%

Clinical Staging of Adenocarcinoma of the Esophagogastric Junction

Cordin¹,

Lehmann²,

Schneider

2009

Adenocarcinoma of the Esophagogastric Junction

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show abstract

“…In human medicine, faster recovery, reduced hospital stay, and decreased pain scores have been attributed to endoscopic procedures. [5][6][7] The endoscopic approach is typically noninvasive to minimally invasive. Endoscopic evaluation of the gastrointestinal (via the mouth, anus, or cloaca) and…”

Section: The Endoscopic Solutionmentioning

confidence: 99%

Making the Difference in Exotic Animal Practice

Divers

2015

Veterinary Clinics of North America: Exotic Animal Practice

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“…Through these open orifices, laparoscopic forceps, needle holders, laparoscope, and any other surgical tools are introduced. This minimally invasive surgical technique is beneficial for both surgeons and patients, leading to a postoperative recovery with fewer complications ( Rau and Hünerbein, 2005 ).…”

Section: Introductionmentioning

confidence: 99%

Force-based control strategy for a collaborative robotic camera holder in laparoscopic surgery using pivoting motion

et al. 2023

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Introduction: Laparoscopic surgery often relies on a fixed Remote Center of Motion (RCM) for robot mobility control, which assumes that the patient’s abdominal walls are immobile. However, this assumption is inaccurate, especially in collaborative surgical environments. In this paper, we present a force-based strategy for the mobility of a robotic camera-holder system for laparoscopic surgery based on a pivoting motion. This strategy re-conceptualizes the conventional mobility control paradigm of surgical robotics.Methods: The proposed strategy involves direct control of the Tool Center Point’s (TCP) position and orientation without any constraints associated with the spatial position of the incision. It is based on pivoting motions to minimize contact forces between the abdominal walls and the laparoscope. The control directly relates the measured force and angular velocity of the laparoscope, resulting in the reallocation of the trocar, whose position becomes a consequence of the natural accommodation allowed by this pivoting.Results: The effectiveness and safety of the proposed control were evaluated through a series of experiments. The experiments showed that the control was able to minimize an external force of 9 N to ±0.2 N in 0.7 s and reduce it to 2 N in just 0.3 s. Furthermore, the camera was able to track a region of interest by displacing the TCP as desired, leveraging the strategy’s property that dynamically constrains its orientation.Discussion: The proposed control strategy has proven to be effective minimizing the risk caused by sudden high forces resulting from accidents and maintaining the field of view despite any movements in the surgical environment, such as physiological movements of the patient or undesired movements of other surgical instruments. This control strategy can be implemented for laparoscopic robots without mechanical RCMs, as well as commercial collaborative robots, thereby improving the safety of surgical interventions in collaborative environments.

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Diagnostic laparoscopy: indications and benefits

Abstract: The effects of surgical staging in gynaecological cancer must be kept in mind but cannot be transferred to gastrointestinal cancer in general. Further studies are required to answer those questions.

Cited by 12 publications

References 45 publications

Clinical Staging of Adenocarcinoma of the Esophagogastric Junction

Clinical Staging of Adenocarcinoma of the Esophagogastric Junction

Making the Difference in Exotic Animal Practice

Force-based control strategy for a collaborative robotic camera holder in laparoscopic surgery using pivoting motion

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