A Novel 3D Reconstruction Sensor Using a Diving Lamp and a Camera for Underwater Cave Exploration.

Aquifer karstic structures, due to their complex nature, present significant challenges in accurately mapping their intricate features. Traditional methods often rely on invasive techniques or sophisticated equipment, limiting accessibility and feasibility. In this paper, a new approach is proposed for a non-invasive, low-cost 3D reconstruction using a camera that observes the light projection of a simple diving lamp.

Acute effects of graduated and progressive compression stockings on leg vein cross-sectional area and viscoelasticity in patients with chronic venous disease.

Objective: To determine the effects of graduated and progressive elastic compression stockings (ECS) on postural diameter changes and viscoelasticity of leg veins in healthy controls and in limbs with chronic venous disease (CVD).

Methods: In 57 patients whose legs presented with C, C, or C CEAP classes of chronic venous disease and were treated primarily with compression, and 54 healthy controls matched for age and body mass index, we recorded interface pressures (IFP) at 9 reference leg levels. Cross-sectional areas of the small saphenous vein (SSV) and a deep calf vein (DCV) were measured with B-mode ultrasound with patients supine and standing, recording the force (PF) applied on the ultrasound probe to collapse each vein with progressive ECS, and with and without graduated 15 to 20 mm Hg and 20 to 36 mm Hg elastic stockings.

Noninvasive measurement of venous wall deformation induced by changes in transmural pressure shows altered viscoelasticity in patients with chronic venous disease.

Objective: The noninvasive measurement of venous wall deformation induced by changes in transmural pressure could allow for the assessment of viscoelasticity and differentiating normal from diseased veins.

Methods: In 57 patients with limbs in the C1s (telangiectasia or reticular veins and symptoms), C3 (edema), or C5 (healed venous ulcer) CEAP (clinical, etiologic, anatomic, pathophysiologic) category of chronic venous disease and 54 matched healthy controls, we measured the changes in the cross-sectional area of the small saphenous vein and a deep calf vein in the supine and standing positions and under compression with an ultrasound probe using ultrasonography.

Results: The small saphenous vein, but not the deep calf vein, cross-sectional area was smaller in the limbs of the controls than in the limbs with C3 or C5 disease but was not different from that in C1s limbs.

A systematic review of surgical site infections following day surgery: a frequentist and a Bayesian meta-analysis of prevalence.

Background: Since 1990, several studies have focused on safety and patient satisfaction in connection with day surgery. However, to date, no meta-analysis has investigated the overall prevalence of surgical site infections (SSI).

Aim: To estimate the overall prevalence of SSI following day surgery, regardless of the type of surgery.

Same-day discharge in benign esophageal surgery: a prospective cohort study.

Day-case esophageal surgery has been demonstrated to be safe in small prospective cohorts and only for laparoscopic fundoplication. The aims of this study are to assess the feasibility and safety of a large series of esophageal day-case surgeries, including laparoscopic Nissen fundoplication (LNF), Zenker diverticulectomy (ZD), and laparoscopic Heller myotomy (LHM) and to compare the outcomes among three procedures.This was a prospective, observational study of selected patients who underwent day-case LNF, ZD, and LHM between 2003 and 2013.

An ultrasound look at Korotkoff sounds: the role of pulse wave velocity and flow turbulence.

Aims: The aim of this study was to analyze the temporal relationships between pressure, flow, and Korotkoff sounds, providing clues for their comprehensive interpretation.

Materials And Methods: When measuring blood pressure in a group of 23 volunteers, we used duplex Doppler ultrasonography to assess, under the arm-cuff, the brachial artery flow, diameter changes, and local pulse wave velocity (PWV), while recording Korotkoff sounds 10 cm downstream together with cuff pressure and ECG.

Results: The systolic (SBP) and diastolic (DBP) blood pressures were 118.

Patterns of recurrence in early-stage oesophageal cancer after chemoradiotherapy and surgery compared with surgery alone.

Background: Patterns of disease recurrence in patients with oesophageal cancer following treatment with neoadjuvant chemoradiotherapy and surgery (nCRTS) or surgery alone are poorly reported. An understanding of patterns of disease recurrence is important for subsequent treatment planning.

Methods: An analysis was undertaken of patterns of disease recurrence from a phase III multicentre randomized trial (FFCD9901) comparing nCRTS with surgery alone in patients with stage I and II oesophageal cancer.

Evaluation of lower limb vein biomechanical properties and the effects of compression stockings, with an instrumented ultrasound probe.

We present a new approach for the evaluation of the biomechanical properties of lower limb veins based on the simultaneous measurements of the vein cross-sectional area with B-mode ultrasound imaging and of the force exerted on the skin by the ultrasound probe. Ongoing clinical trials allowed us to identify a behavioral model of lower limb veins without and with compression stockings.

Impact of neoadjuvant chemoradiation on lymph node status in esophageal cancer: post hoc analysis of a randomized controlled trial.

Objective: The study objectives were to analyze the impact of the number of lymph nodes (LNs) reported as resected (NLNr) and the number of LNs invaded (NLNi) on the prognosis of esophageal cancer (EC) after neoadjuvant chemoradiotherapy.

Background: Pathological LN status is a major disease prognostic factor and marker of surgical quality. The impact of neoadjuvant chemoradiation (nCRT) on LN status remains poorly studied in EC.

Surgery alone versus chemoradiotherapy followed by surgery for stage I and II esophageal cancer: final analysis of randomized controlled phase III trial FFCD 9901.

Purpose: Although often investigated in locally advanced esophageal cancer (EC), the impact of neoadjuvant chemoradiotherapy (NCRT) in early stages is unknown. The aim of this multicenter randomized phase III trial was to assess whether NCRT improves outcomes for patients with stage I or II EC.

Methods: The primary end point was overall survival.

[Does early signet ring cell gastric carcinoma carry a worse prognosis?].

Introduction: The signet ring cell (SRC) histological subtype is a factor of poor prognosis in advanced gastric adenocarcinomas, but its prognostic value in early gastric cancer is unclear. The aim of this study was to evaluate the prognostic impact of SRC in superficial gastric adenocarcinomas, based on a comparison of patients with SRC and non SRC histologies.

Patients And Methods: From a large national cohort of 3,010 patients operated on for gastric adenocarcinoma between January 1997 and January 2010, we selected patients with pTis or pT1 tumors and compared those with SRC and non SRC histology on the basis of demographic, surgical and histologic factors and outcomes.

[Ambulatory emergency surgery].

Development of outpatient cases in emergency is still a controversy. Ambulatory surgery is possible in ambulatory surgical unit (ASU), or in emergency surgical units (ESU). Quality of care and safety need to be associated to patients' ambulatory management without impairment of ASU and ESU organization.

Day-case versus inpatient laparoscopic fundoplication: outcomes, quality of life and cost-analysis.

Background: Day-case laparoscopic Nissen-Rossetti fundoplication (LF) has been demonstrated to be safe in small, prospective cohorts. The purpose of the study was to compare postoperative course, functional results, quality of life, and healthcare costs in patients undergoing LF in a day-case surgical unit with same-day discharge and patients undergoing LF as an inpatient.

Methods: All consecutive patients in our department who underwent a primary LF for symptomatic uncomplicated gastroesophageal reflux disease from 2004 to 2011 were entered into a prospective database (n = 292).

Validation of lower limb segmental volumetry with hand-held, self-positioning three-dimensional laser scanner against water displacement.

Background: Measurement of limb volume is helpful for the evaluation and follow-up of edema, especially in patients with chronic venous insufficiency (CVI) or lymphedema. Water displacement (WD) is the reference method for limb volumetry but is not really suitable for clinical routine. Indirect volumetry based on circumference measurements as well as the more expansive but automatic optoelectronic techniques do not allow detailed measurement at the extremity of the limb.

Pancreatic metastases of renal clear cell carcinoma: a clinicopathological study of 11 cases with special emphasis on the usefulness of PAX2 and mesothelin for the distinction from primary ductal adenocarcinoma of the pancreas.

Objective: To determine whether PAX2 and mesothelin immunohistochemistry add additional diagnostic value in discriminating between pancreatic metastasis of renal clear cell carcinoma (PMRCC) and primary ductal adenocarcinoma of the pancreas (PDAC).

Study Design: We retrospectively collected tissue from PMRCC and PDAC. Eleven cases of PMRCC registered at Lille University Hospitals from 2001 to 2010 were included.

Effects of hybrid minimally invasive oesophagectomy on major postoperative pulmonary complications.

Background: Morbidity after oesophageal cancer surgery remains high, mainly due to major postoperative pulmonary complications (MPPCs). The aim of this study was to test the hypothesis that hybrid minimally invasive oesophagectomy (HMIO) decreases the 30-day MPPC rate without compromising oncological outcomes.

Methods: Consecutive patients undergoing curative oesophagectomy for cancer by laparoscopic gastric mobilization and open thoracotomy (HMIO) between January 2004 and December 2009 were matched to randomly selected patients undergoing a totally open approach during the same study interval.

FOLFIRI chemotherapy in patients with advanced non resectable esophageal or junctional adenocarcinoma: a pilot study.

In this prospective pilot study, we assessed the efficacy and safety of the FOLFIRI regimen (irinotecan 180 mg/m², leucovorin 200 mg/m² d1 followed by bolus 400 mg/m² 5-fluorouracil (5-FU) and by a 46-h 2400 mg/m² 5-FU infusion, every 2 weeks) in patients with advanced esophageal or junctional adenocarcinoma. Twenty-nine patients were included. A complete response was obtained in 2 patients, a partial response in 7 patients (objective response rate 31.

Is pretreatment endoscopic biopsy a good predictor of signet ring cell histology in gastric carcinoma?

Background: Signet ring cell (SRC) carcinoma is defined as an adenocarcinoma in which >50% of the total operative specimen consists of isolated or small groups of malignant cells containing intracytoplasmic mucins (hSRCs). We previously demonstrated that hSRCs are a predictor of poor prognosis with specific tumoral characteristics suggesting the need for a dedicated therapeutic strategy before surgery. However diagnostic accuracy and prognostic value of SRCs on pretreatment biopsies (bSRCs) is unknown.

[Cancer of the esophagus and gastroesophageal junction: evolution of surgical management].

Management of esophageal cancer has evolvedmarkedly in the last two decades. Advances in neoadjuvant treatment combined with refinements in surgical techniques and perioperative care have resulted in better postoperative outcomes and long-term survival. We investigated trends in the outcome of esophagectomy for esophageal cancer over the past 20 years at our high-volume institution.

Open versus laparoscopically-assisted oesophagectomy for cancer: a multicentre randomised controlled phase III trial - the MIRO trial.

Background: Open transthoracic oesophagectomy is the standard treatment for infracarinal resectable oesophageal carcinomas, although it is associated with high mortality and morbidity rates of 2 to 10% and 30 to 50%, respectively, for both the abdominal and thoracic approaches. The worldwide popularity of laparoscopic techniques is based on promising results, including lower postoperative morbidity rates, which are related to the reduced postoperative trauma. We hypothesise that the laparoscopic abdominal approach (laparoscopic gastric mobilisation) in oesophageal cancer surgery will decrease the major postoperative complication rate due to the reduced surgical trauma.

[Salvage surgery: cancer of the esophagus].

Neoadjuvant chemoradiotherapy is the gold standard of the treatment of advanced oesophageal cancer. The role of surgery after chemoradiotherapy is still debated. Feasibility of curative resection depends on dose of radiotherapy, morbimortality rates, and nutrition status at the end of the protocol especially for non-responders patients.

Outcome of day-case laparoscopic fundoplication for gastro-esophageal reflux disease.

Aim: To assess the acceptability, feasibility and results of day-case laparoscopic fundoplication for gastro-esophageal reflux disease (GERD) in an university tertiary care center.

Methods: Day-case surgery for GERD was proposed routinely to all patients with proven asymptomatic, uncomplicated GERD fulfilling predetermined inclusion criteria from September 2003 and January 2007. All patients underwent standard anesthetic, surgical, analgesic and antiemetic protocols.