Veress Needle Research Articles

An open comparative randomized prospective study: Direct trocar insertion vs Veress needle technique in laparoscopic surgeries.

Laparoscopy is a minimally invasive technique utilized for both diagnostic and surgical approaches. Minimally invasive procedures compared to laparotomy offer the advantages of reduced hospital stay, lower morbidity, decreased pain, and faster recovery. Common methods for laparoscopic entry include Veress needle insertion (VNI), direct optical trocar entry, direct trocar insertion (DTI), and the Hasson technique. This study aims to compare the efficacy and safety of VNI and DTI in laparoscopic gynecological surgeries. An open comparative randomized prospective study was conducted involving 200 women aged 18 to 70 years, scheduled for laparoscopic surgery at 2 tertiary centers. Participants were randomized into 2 groups: 1 using VNI and other using DTI. The groups were homogeneous regarding age, parity, and body mass index. The mean age of the VNI group is 45.22 ± 11.65 and the DTI group is 44.89 ± 10.5 (P = .833). There were no statistical significance in terms of the presence of chronic diseases and history of previous abdominal surgery between the groups (P = .802 and P = .510, respectively). Entry time to the abdomen, the decrease in hemoglobin values, and hospitalization length were found to be statistically significant between the entry methods (P < .001, P = .002, and P < .001, respectively). Entry time, the decrease in hemoglobin value, and hospitalization length were higher in the VNI group. In conclusion, although there is no definitive consensus on the optimal laparoscopic entry technique, direct trocar entry is an effective alternative to the Veress needle insertion technique. Direct trocar entry is associated with shorter entry times, fewer perioperative complications, less reduction in hemoglobin levels, and shorter hospitalization duration compared to VNI.

805. BOCHDALEK HERNIA - CASE REPORT

Abstract Introduction Bochdalek hernia is a rare type of diaphragmatic hernia congenital and is quite uncommon in adulthood, representing only 0.17-6% of all diaphragmatic hernias. The objective of the present study is to report the technique surgery performed on a patient with a bochdalek hernia. Methods The information was obtained through medical record review, interview with the patient and literature review. Results/Discussion A 49-year-old female patient was admitted to a hospital in Natal (RN- Brazil) with vomiting for seven months, average of 3-4 vomits daily after meals, associated with dysphagia, epigastric pain and weight loss of 26 kg during this period. The physical examination, she was dehydrated, emaciated and with a flaccid abdomen and painless. Laboratory exams, she presented high levels of ureia and hypokalemia. CT scan of the chest and abdomen with contrast showed a hernia right posterolateral diaphragm with insinuation of the transverse colon and portion distal part of the stomach, in addition to significant gastric stasis, without signs of ischemia. Vigorous hydration was carried out and fasting was maintained, in addition, was inserted nasogastric tube and began parenteral nutrition. After ten days of parenteral nutrition and correction of hydro electrolyte disorders, there was an improvement in symptoms with laboratory normalization. So, she undergo a surgical intervention by videolaparoscopy. Surgical intervention took place with the pneumoperitoneum with Veress needle and trocars inserted (2 10-inch trocars). mm and 3 of 5 mm). Introduction of 30° optics. Cavity inventory identified massive right posterolateral diaphragmatic hernia, containing transverse colon and part of the stomach. Hepatic retractor was positioned to retracted the right hepatic lobe. Completely reduced the hernia through the Bochdalek foramen, after undoing content adhesions with the diaphragm. Afterwards, the closing of the defect with 2-0 Ethibond thread and a biocompatible mesh placed over the suture (Phasix) 10x10 cm and fixed with the same thread in separate stitches. Left drain blake type number 24 Fr, was left in the right hemithorax. The procedure was done uneventful. Conclusions Bochdalek hernia is a structural defect in the diaphragm, which can cause the passage of practically any intra-abdominal organ to the chest. Surgical repair of the defect is the only existing treatment option. In this case, we have a late presentation and in a complicated form. We opted for clinical stabilization of the patient, with nutrition and timely videolaparoscopy on the tenth day of hospitalization. The correction of hernia laparoscopically allows wide access to the workplace and with good mobility for dissection of the hernial sac, in addition to unquestionable acceleration of postoperative recovery and reduction of surgical trauma and size of the incisions. This way, we have a shorter hospitalization time with early return to the patient's daily activities.

615. ROBOTIC REDO LAPAROSCOPIC HELLER’S CARDIOMYOTOMY

Abstract Introduction Robotic Heller’s cardiomyotomy is the preferred treatment option for achalasia cardia. However, following Heller’s cardiomyotomy up to 20% of patients experience dysphagia and regurgitation in the long term. The ideal management option for such patients needs to be determined. Surgical Steps The procedure is carried out with patient in supine position, legs abducted with the knees in slightly flexed position in reverse Trendelenburg position of approximately 30°.The pneumoperitoneum is created by closed Veress needle technique. After Relasing Adhesions, the gastrohepatic ligament is divided and the right crus is identified and retrocardiac window is formed; proximal short gastric vessels are divided for posterior wrap. The esophagus is separated by blunt dissection from the crus, the peritoneum and phrenoesophageal membrane are divided and the left crus is identified. If an anterior partial fundoplication is planned as antireflux procedure, the mobilization is limited to the lateral and anterior aspects. The anterior vagus nerve is identified and should be dissected and lifted away from the distal esophagus and proximal stomach in order to facilitate transhiatal dissection, myotomy and also to prevent injury to the esophagus and vagal trunks. Dissection is continued cranially around the esophagus for a distance of about 2–3 cm onto the dilated segment of the esophagus in the posterior mediastinum. If posterior partial wrap (Toupet) is planned, esophagogastric dissection is performed posteriorly from both crura and median arcuate ligament to get tension free wrap. Fundus of the stomach is dissected off the diaphragm and if needed two or three short gastric vessels are divided. Posterior vagal trunk is dissected along with esophagus. Conclusion Redo Robotic Heller’s cardiomyotomy can safely be performed with good symptomatic relief for patients who present with recurrent symptoms following Heller’s cardiomyotomy. Long term follow-up with larger sample size is needed to confirm these findings. https://drive.google.com/file/d/1uFgx0Aal92o5FE-Ndp-tAsCg01NJ6Crm/view?usp=sharing

Enhancing Veress Needle Entry with Proximal Vibroacoustic Sensing for Automatic Identification of Peritoneum Puncture.

Laparoscopic access, a critical yet challenging step in surgical procedures, often leads to complications. Existing systems, such as improved Veress needles and optical trocars, offer limited safety benefits but come with elevated costs. In this study, a prototype of a novel technology for guiding needle interventions based on vibroacoustic signals is evaluated in porcine cadavers. The prototype consistently detected successful abdominal cavity entry in 100% of cases during 193 insertions across eight porcine cadavers. The high signal quality allowed for the precise identification of all Veress needle insertion phases, including peritoneum puncture. The findings suggest that this vibroacoustic-based guidance technology could enhance surgeons' situational awareness and provide valuable support during laparoscopic access. Unlike existing solutions, this technology does not require sensing elements in the instrument's tip and remains compatible with medical instruments from various manufacturers.

Systematic review on techniques for the creation of pneumoperitoneum in laparoscopic surgeries

Systematic review on techniques for the creation of pneumoperitoneum in laparoscopic surgeries

A New, Safe, and Effective Technique for Percutaneous Insertion of a Peritoneal Dialysis Catheter.

A properly functioning peritoneal catheter is an essential element of effective peritoneal dialysis (PD). Currently, there are three techniques available for PD catheter placement, which include open surgery, laparoscopic surgery, and percutaneous catheter placement (PCP). Currently, no particular catheter placement approach has been proven with certainty to provide superior outcomes. We present a new modified PCP method with the use of the Veress needle covered with an intravascular catheter (IC) and preliminary clinical results of PD catheter placements with this new technique. The endpoints used in the study were 1-year technical survival of the catheter, and the incidence of early (1 month) mechanical as well as infection complications. The catheter was implanted in 24 patients. The catheter survival rate was 100%; however, in two cases, the catheters were removed due to complications not associated with PD treatment. No early mechanical complications such as bleeding, hematoma, perforations, internal organ damage, exit site leaks, or hernia in the place of insertion were observed. Similarly, no early infectious complications were observed. During the 1-year follow-up, no catheter migration occurred. Our results showed that the new PCP technique is a safe and easy procedure that minimizes the occurrence of both mechanical and infectious complications and ensures good catheter survival.

Large Ovarian Cyst - Laparoscopic Entry: A Case Report

This report is aimed at introducing a simple technique to improve safety in drainage of large ovarian cyst managed with laparoscopic techniques. A 31-year-old, nulliparous woman, presented with a massive unilocular ovarian cyst measuring 22.48 cm in height, 18.92 cm in transverse axis, and 8.03 cm antero posteriorly. She had a normal CA125 level. Entry was done with the open technique (Hasson's) at the midpoint between umbilicus and the xiphisternum (Lee Huang). Through this opening the cyst wall was separated by blind dissection to avoid damage to cyst wall. Then the cyst contents were drained with a Veress needle. Troche was inserted through the same incision and pneumoperitoneum was created allowing a routine cystectomy. The critical step in managing large cysts is safe entry and inducing pneumoperitoneum. Using a simple technique, could improve safety resulting in successful a successful outcome of laparoscopic techniques for large ovarian cysts.

Evaluation of Open (Hasson's) and Closed (Veress) Technique of Intraperitoneal Access for Creation of Pneumoperitoneum in Laparoscopic Surgery.

Background The creation of pneumoperitoneum is the first step in any laparoscopic surgery. There are various methods of creating pneumoperitoneum which can be divided into open or closed methods. The closed method involves the blind insertion of the Veress needle into the peritoneal cavity. The open technique involves making an incision and then dissecting the fascia to the peritoneal cavity to introduce the cannula under direct vision. This study was conducted to evaluate the safety and efficacy of open (Hasson's) and closed (Veress) techniques of intraperitoneal access for the creation of pneumoperitoneum in laparoscopic surgery. Material and methods The study was conducted in the Department of General Surgery, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi. This was a prospective observational study and a total of 100 patients of laparoscopic surgeries fulfilling inclusion criteria were included in the study - 50 patients in group A undergoing the open method of creating pneumoperitoneum and 50 patients in group B undergoing the closed method of creating pneumoperitoneum were evaluated for the study period of 18 months from October 2020 through June 2022. Results The mean time to create pneumoperitoneum was 5.3 ± 1.41 minutes in the open method and 6.21 ± 1.36 minutes in the closed method. The mean time for umbilical port closure in our study was 7.33 ± 1.66 in the open group and 8.86 ± 2.19 in the closed group. In our study, there was no vascular or visceral injury noted in either of the methods used for the creation of pneumoperitoneum. Post-operative complications were almost equal in both the groups. Conclusions Both open and closed methods of intraperitoneal access are safe and effective for the creation of pneumoperitoneum during abdominal laparoscopy. The open method of creating pneumoperitoneum in laparoscopic surgery is a quicker method for the creation of pneumoperitoneum as compared to the closed method of intraperitoneal access.

Comparison of Optical Trocar Access Versus Veress Needle Insertion Technique for Peritoneal Entry in Laparoscopic Donor Nephrectomy

Nearly half of all complications in laparoscopic surgery occur at the intraperitoneal access. We compared direct optical entry (DOE) with Veress needle entry (VNE) in terms of abdominal entry time and entry-associated complications in patients who underwent laparoscopic donor nephrectomy (LDN). Between June 2010 and July 2023, data from 813 patients who underwent LDN were analyzed. Age, male-to-female ratio, American Society of Anesthesiologists (ASA) score, body mass index, operation side, previous abdominal surgery, abdominal entry technique, abdominal entry time, entry-associated complications, conversion to different abdominal entry techniques, and conversion to open surgery were evaluated. DOE and VNE were performed on 433 and 281 patients, respectively. Age (48.89 ± 12.11 vs 47.59 ± 11.34 years), male-to-female ratio (44.8% vs 40.9% males and 55.2% vs 59.1% females), ASA score (2 vs 2 median ASA score), body mass index (26.72 ± 6.11 vs 27.07 ± 5.83 kg/m2), and operation side (63.0% vs 61.3% left nephrectomy) were not statistically significant differences between the DOE and VNE groups (P > .05). However, abdominal entry time was significantly reduced in the DOE group compared with the VNE group (26.8 ± 20.8 vs 49.5 ± 34.1 seconds, P = .007, respectively). Entry-associated complications were observed in 8 (1.12%) patients. No major (grades 3-5) complications were observed. There were no statistically significant differences in overall (0.6% vs 1.7%, P = .291), grade 1, and grade 2 complication rates between the DOE and VNE groups (0.4% vs 1.4%, P = .366; 0.2% vs 0.3%, P = .714, respectively). DOE and VNE are not foolproof. DOE is a safe, feasible, and faster technique in patients who underwent LDN.

Retraction Note: A Modified Technique of Laparoscopic Closed-Entry by the Veress Needle: A Novel, Unique, Rapid, and Simple Procedure

The authors request the withdrawal of the technical research paper titled “A Modified Technique of Laparoscopic Closed-Entry by the Veress Needle: A Novel, Unique, Rapid, and Simple Procedure” which was published in the Eur J Ther [1]. This request is made on behalf of all authors involved. The authors regret that the reason for retraction was that a conflict of interest arose between them. Consequently, the conflict of interest made the manuscript unsuitable for publication in its current form. The authors apologize for any inconvenience this may cause.

Using Veress Needle for Laparoscopy in Females with Prior Cesarean Section: Considerations and Safety Implications

Using Veress Needle for Laparoscopy in Females with Prior Cesarean Section: Considerations and Safety Implications

OGBN P47 Isolated Pneumoperitoneum following ERCP

Abstract Background An 84-year-old man underwent a difficult ERCP following biliary leak after laparoscopic converted to open cholecystectomy for acute cholecystitis. Postoperative scan was suggestive of bile leak from Cystic Duct stump and an ERCP-stenting had been requested to treat the problem. He needed urgent decompression for extensive pneumoperitoneum causing acute ventilatory dysfunction during the procedure. Post procedure CT showed pneumoperitoneum and pneumobilia suggesting air leak through Cystic Duct Stump. Methods The patient had been admitted for acute cholecystitis and had undergone treatment as an inpatient. An urgent abdominal decompression with a Veress needle after completing the procedure had resolved the acute respiratory distress. He needed a short stay in the intensive care after the ERCP before being safely stepped down to the wards. Records of the rare event was collected retrospectively from the hospital electronic patient record system. Results The patient recovered after continued monitoring and support in the Intensive Care. He needed transient respiratory support and treatment for lung collapse. The CT scan ruled out any duodenal injury - the initial suspected reason for the acute deterioration. The presumed cause of the pneumoperitoneum was air leak from an open Cystic Duct stump following canulation of the common bile duct. Conclusions Pneumoperitoneum after ERCP is usually secondary to duodenal injury. Our patient had no evidence of Free pneumoperitoneum causing respiratory compromise at ERCP - this is extremely rare. The patient was monitored till discharge for any sign of hollow viscus re-perforation Pneumoperitoneum due to air leak from Cystic Duct stump has not been reported before.

Cardiovascular and Respiratory Effects of Increased Intra-Abdominal Pressure with and without Dexmedetomidine in Anesthetized Dogs.

Intra-abdominal pressure (IAP) elevation during capnoperitoneum can cause adverse cardiovascular and respiratory effects. This study aimed to determine if a sequentially increased IAP affects cardiovascular and respiratory variables in anesthetized dogs and evaluate the effects of the constant-rate infusion of dexmedetomidine (Dex) on cardiovascular and respiratory variables with increased IAP. Five dogs were anesthetized and instrumented, and a Veress needle was equipped to adjust the IAP using a carbon dioxide insufflator. Stabilization was conducted for 1 h, and physiological variables were measured at IAPs of 0, 5, 10, 15, and 20 mmHg and after desufflation. After the washout period, the dogs underwent similar procedures along with a constant-rate infusion of dexmedetomidine. The cardiovascular effects of increased IAP up to 20 mmHg were not significant in healthy beagle dogs and those administered with dexmedetomidine. When comparing the control and dexmedetomidine groups, the overall significant effects of dexmedetomidine were noted on heart rate, cardiac output, and systemic vascular resistance during the experiment. Respiratory effects were not observed during abdominal insufflation when compared between different IAPs and between the two groups. Overall, an increased IAP of up to 20 mmHg did not significantly affect cardiovascular and respiratory variables in both the control and dexmedetomidine groups. This study suggests that the administration of a dexmedetomidine infusion is applicable in laparoscopic procedures in healthy dogs.

Unreported rare but serious complication: Major vascular injuries during bariatric surgery.

The aim of this study was to investigate the incidence, risk factors, clinical presentation, and management of major vascular injuries during bariatric surgery, with a specific focus on the role of different access methods in abdominal cavity entry. A nationwide survey was conducted among bariatric surgeons to assess the prevalence of major vascular injuries. A questionnaire was distributed to 365 surgeons through WhatsApp groups of two national bariatric surgery societies, with 76 surgeons completing the survey. The study population included general surgeons practicing bariatric surgery, and the questionnaire consisted of 12 questions. Among the participants, 16.9% reported experiencing a major vascular injury during bariatric surgery. The majority of injuries (75%) occurred at the trocar entrance, with the remaining cases during the dissection phase. Notably, 66.7% of surgeons used optical trocars for access, while 27.8% employed the Veress needle technique. Early detection varied, with 45% identifying the injury immediately and 30% recognizing it within three minutes. Most injuries (52.4%) were repaired laparoscopically, and only three surgeons sought assistance from cardiovascular surgeons. Vascular injuries are infrequent but potentially serious complications in laparoscopic bariatric surgery. Understand-ing their incidence, timely recognition, and proper management are crucial to minimize adverse effects. The findings of this study shed light on the patterns of vascular injuries and the potential role of specific access methods, providing valuable insights for enhancing patient safety in bariatric surgery.

Marwah's Confluence Point, Evaluating Safety of Insertion of Veress Needle Just below the Rib Cage at the Confluence of the 8th to 10th Ribs

Marwah's Confluence Point, Evaluating Safety of Insertion of Veress Needle Just below the Rib Cage at the Confluence of the 8th to 10th Ribs

Patent umbilical artery in medial umbilical fold: Cadaveric study and clinical implications

Minimally invasive surgery has become one of the most accepted surgical options across the globe. In most laparoscopic surgeries, medial umbilical fold (MUF) containing the umbilical artery (UA) serves as an important landmark for creation of peritoneal flap. 50% of gynaecological laparoscopic injuries occur at the time of entry into the anterior abdominal wall, as it involves blind insertion of the trochar or veress needle in the peritoneal cavity. Any variation in the structures of the anterior abdominal wall may affect the placement location of the trocar, which is a crucial aspect to ease the surgeon’s ability to manoeuvre the abdominal cavity. The presence of cords and/or dense ligamentous structures in the anterior abdominal wall may complicate trocar insertion and restrict the probe movement during laparoscopic procedures. Hence, the aim of the present study was to classify and observe the variations in the MUF in the anterior abdominal wall.The cadavers in the study were formalin fixed through femoral artery perfusion method. Out of the 35 (23 males; 12 female) cadavers (70 MUF), studied, 34 cadavers (69 MUF) followed the pattern of the existing classification proposed by Tokar and Yucel, (2009). However, the right MUF of one male cadaver presented, patent umbilical artery (PUA) associated with a long mesentery. Based on safe presentations for laparoscopic exploration, MUF was given grades. Grades 0 and 1 were categorised as safe as compared to grade 2 and the novel variant observed, based on the morphology of MUF. No significant difference was noted in the occurrence of safe presentations of MUF amongst males and females.MUF with a patent vessel and a mesentery may cause technical difficulties to the surgeon by decreasing the laparoscopic port work space and obscuring the view of lateral pelvic wall during surgeries. Furthermore, persistent UA can compress the ureter and vas deferens resulting in myriad of symptoms ranging from unexplainable flank pain, hydronephrosis to male infertility. Awareness of such variants is of relevance to urologists in determining the cause of these unexplained symptoms and to surgeons in determining the site of safe trocar insertion. The findings also, highlight the fact that anterior abdominal wall anatomy is not mirror image on both the sides.

The relevance of reducing Veress needle overshooting

Safe insertion of the Veress needle during laparoscopy relies on the surgeons’ technical skills in order to stop needle insertion just in time to prevent overshooting in the underlying organs. To reduce this risk, a wide variety of Veress needle systems were developed with safety mechanisms that limit the insertion speed, insertion depth or decouple the driving force generated by the surgeon’s hand on the needle. The aim of this study is to evaluate current surgeons’ perceptions related to the use of Veress needles and to investigate the relevance of preventing overshooting of Veress needles among members of the European Association of Endoscopic Surgery (EAES). An online survey was distributed by the EAES Executive Office to all active members. The survey consisted of demographic data and 14 questions regarding the use of the Veress needle, the training conducted prior to usage, and the need for any improvement. A total of 365 members residing in 58 different countries responded the survey. Of the responding surgeons, 36% prefer the open method for patients with normal body mass index (BMI), and 22% for patients with high BMI. Of the surgeons using Veress needle, 68% indicated that the reduction of overshoot is beneficial in normal BMI patients, whereas 78% indicated that this is beneficial in high BMI patients. On average, the members using the Veress needle had used it for 1448 (SD 3031) times and felt comfortable on using it after 22,9 (SD 78,9) times. The average years of experience was 17,6 (SD 11,1) and the surgeons think that a maximum overshoot of 9.4 (SD 5.5) mm is acceptable before they can safely use the Veress needle. This survey indicates that despite the risks, Veress needles are still being used by the majority of the laparoscopic surgeons who responded. In addition, the surgeons responded that they were interested in using a Veress needle with an extra safety mechanism if it limits the risk of overshooting into the underlying structures.

Comparison of Abdominal Initial Entry Techniques in Gynecological Laparoscopy

Objective: The aim of this study is to assess the safety of laparoscopic entry techniques.&#x0D; Materials and Methods: Within the scope of the study, medical records of patients who underwent laparoscopy due to various gynecological indications at our clinic between January 1, 2011, and July 1, 2015, were examined. Evaluation was conducted using our hospital’s electronic database.&#x0D; Results: In the patient cohort, direct trocar placement was preferred in 91.8% (1025 patients), Veress needle placement was used in 7.4% (82 patients), and an open technique was used in 0.8% (9 patients). In terms of entry sites, umbilicus was the most commonly chosen option, being preferred in 97.2% (1085 patients) of cases. In 2.4% of patients (27 patients), the midline abdominal trocar was preferred as the initial trocar insertion site. Among these patients, suprapubic incision was preferred in 62% (17 patients), while Lee-Huang point was chosen as the entry site in 38% (10 patients).Looking at the history of previous surgeries, 18.5% (206 patients) had a history of prior abdominal surgery, and 3.5% (39 patients) had undergone two previous surgical procedures. Only 0.1% (1 patient) had undergone three or more abdominal surgeries.&#x0D; Discussion: In conclusion, no clear superiority of one initial entry technique over another has been proven. Despite the extensive literature on laparoscopic entry, debates regarding the most effective method to prevent significant complications continue.

A Modified Technique of Laparoscopic Closed-Entry by the Veress Needle: A Novel, Unique, Rapid, and Simple Procedure

Background: Gynecologists usually perform the laparoscopic closed-entry technique to access the intraperitoneal cavity, while general surgeons prefer the open-entry approach, which takes more time. This study aims to introduce and discuss the novel modified closed laparoscopic entry technique. This method involves cutting the fascia after the skin incision to allow only the Veress needle to enter, thus avoiding complications arising from the closed procedure. This approach may benefit safe and quick laparoscopic entry, especially for obese patients. Method of Technique: The current approach, which we call the modified closed Veress technique (MCVT), is a modification of the previously defined Veress needle entrance method. After the skin is cut, the subcutaneous fat tissue is released with the Mosquito clamp, the muscular fascia is held and hung with the Kocher clamp, and the incision is created large enough to insert the Veress needle. Then, the Veress needle is passed through the parietal peritoneum, the final step before reaching the intraperitoneal cavity. Results: In our Gynecology and Obstetrics clinic, the current technique for the first entrance to the intraperitoneal cavity was used in a total of 294 patients between the years 2019-2023. There were no intraoperative or postoperative complications associated with the current approach. Moreover, in 12 patients who failed with the standard closed technique, intraperitoneal gas charging was provided in the first trial with the MCVT. Conclusion: Because it is possibly as safe as the open technique and as quick as the standard closed technique, the MCVT may be one of the alternative techniques for the first laparoscopic entry into the peritoneal cavity to prevent complications and save time. Nevertheless, more thorough and patient-based prospective randomized research is required on this topic.

Towards AI-driven minimally invasive needle interventions

Abstract The overall complication rate during laparoscopic access is estimated to be as high as 14 %. Surgeons have to rely heavily on their experience and haptic perception while inserting the Veress needle or a trocar into the peritoneal cavity. Surgical Audio Guidance (SURAG) is a promising alternative to current techniques. It acquires instrument-born vibroacoustic (VA) waves to track the insertion of the instrument and provide real-time feedback to surgeons. This article presents an initial evaluation of the SURAG technology through two sets of experiments to classify Veress needle events using different AI-models. The results demonstrate the feasibility of using AI for classifying Veress needle events and the potential of the SURAG technology to support surgeons during laparoscopic access and minimally invasive needle interventions in general.