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Results for “laparoscopy”

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At least 379 records · Page 21Linked to original sources

PubMed2001

The routine use of diagnostic laparoscopy in the intensive care unit.

BACKGROUND: Delay in the diagnosis of intraabdominal pathology is a major contributor to the morbidity and mortality of intensive care unit (ICU) patients. Laparoscopy is a valuable diagnostic tool that can be used safely and efficiently in the evaluation of intraabdominal processes that may be difficult to diagnose with conventional methods. Our goal was to show that laparoscopy performed at the bedside in the ICU could be used as a routine diagnostic tool in the evaluation of critically ill patients, just as computed tomography (CT), ultrasonography (US), and radiography are. METHODS: We present 11 patients who underwent 12 bedside examinations in the ICU of a community teaching hospital. Several different surgeons with varying degrees of laparoscopic experience performed these procedures over a 1-year period. RESULTS: Four patients had previously undergone recent abdominal operations. Nontherapeutic laparotomy was avoided in six patients because of diagnostic laparoscopy. One patient also underwent a therapeutic maneuver at the time of diagnostic laparoscopy. None of the patients required general anesthesia, although local anesthetics and sedation with midazolam or propofol were used. One patient underwent the procedure without endotracheal intubation. There were no complications or mortalities directly related to the procedure. CONCLUSION: We conclude that bedside laparoscopy in the ICU under local anesthesia is a diagnostic and potentially therapeutic tool that can be used safely in the work-up of potential abdominal pathology in critically ill patients.

Abdomen↗

PubMed2000

The role of laparoscopy in preoperative staging of esophageal cancer.

BACKGROUND: Diagnostic laparoscopy has been used to determine resectability and to prevent unnecessary laparotomy in patients with advanced esophageal cancer. The objective of this prospective study was to evaluate the role of laparoscopy in conjunction with computed tomography (CT) scan in staging patients with esophageal cancer. METHODS: From March 1995 to October 1998, 59 patients with biopsy-proven esophageal cancer underwent diagnostic laparoscopy with concurrent vascular access device and feeding jejunostomy tube placement. RESULTS: Laparoscopy changed the treatment plan in 10 of 59 patients (17%). Of the patients with normal-appearing regional or celiac nodes, 78% were confirmed by biopsy to be tumor free, whereas 76% of patients with abnormal-appearing nodes were confirmed by biopsy to have node-positive disease. CONCLUSIONS: Diagnostic laparoscopy is useful for detecting and confirming nodal involvement and distant metastatic disease that potentially would alter treatment and prognosis in patients with esophageal cancer.

Adult↗

PubMed2000

The feasibility and accuracy of diagnostic laparoscopy in the septic ICU patient.

BACKGROUND: Systemic inflammatory response syndrome (SIRS) and sepsis of unknown origin are common complications of critically ill patients in the ICU. These patients frequently have unreliable clinical exams and are candidates for exploratory laparotomy. Although abdominal CT is commonly used because it is less invasive than laparotomy, it is often unreliable or unobtainable. Bedside laparoscopy is an alternative technique that may be more accurate than CT in selected patients and less invasive than laparotomy. METHODS: We performed diagnostic laparoscopy (DL) in a series of ICU patients with SIRS/septic state of unknown origin between May 1997 and June 1998. All patients were unstable and required significant respiratory and hemodynamic support. Laparoscopy was either performed in the ICU at the patient's bedside or in the operating room. CT scan of the abdomen had been performed on most of the patients who were stable enough to transport. Confirmation of diagnosis was obtained either by laparotomy, autopsy, or clinical recovery. RESULTS: Among the 17 eligible patients, 16 underwent successful DL. Insufflation was impossible in one patient because of high intraabdominal pressure. Bedside evaluations were performed in 14 of the 17 patients. There were no complications from the laparoscopy. Six patients were identified as positive (four intestinal ischemia, two cholecystitis); the other 10 had negative explorations. Follow-up on two patients with negative laparoscopy was incomplete due to denied postmortem. Laparoscopic diagnoses were confirmed in the remaining 14 patients by laparotomy (six cases), postmortem (three cases), or recovery (five cases), with an accuracy of 100%. The overall accuracy of abdominal CT obtained in nine of the 14 patients was 33%. CONCLUSIONS: DL in a select group of critical ICU patients is safe and accurate, whereas CT scan tends to be inaccurate and is often unobtainable due to patient instability. Performing the procedure at the bedside can expedite the diagnosis, eliminate the burden for transfer, and save on anesthesia and operating room charges.

Feasibility Studies↗

PubMed1998

Diagnostic laparoscopy in patients with an acute abdomen of uncertain etiology.

BACKGROUND: There are acute abdominal conditions in which it is difficult to establish an indicative diagnosis before laparotomy. A diagnosis is important in planning the right abdominal incision or to avoid an unnecessary laparotomy. Diagnostic noninvasive procedures such as X-ray studies do not always appear conclusive. Diagnostic laparoscopy is the only technique which can visualize the abdomen and, by establishing an adequate diagnosis, permits the surgeon to plan the right abdominal approach. METHODS: In a prospective study, 65 patients with a generalized acute abdomen (no intestinal obstruction or perforation) underwent a diagnostic laparoscopy under general anesthesia previous to the planned median laparotomy. RESULTS: In 46 patients (70%) diagnostic laparoscopy permitted the establishment of an adequate diagnosis, whereas in seven patients (10%) no cause for the acute abdomen could be found and an explorative laparotomy was avoided. In another 12 patients (20%) insufficient information was obtained during laparoscopy and an explorative laparotomy was performed. CONCLUSIONS: A conclusive diagnosis was established in 53 patients. This information led to a change in the surgical approach in 38 patients (e.g., limited, well-placed approach, laparoscopically, or avoidance of an unnecessary laparotomy). Diagnostic laparoscopy in this category of patients is a useful technique with important therapeutic consequences.

Abdomen, Acute↗

PubMed1999

The use of diagnostic laparoscopy supported by laparoscopic ultrasonography in the assessment of pancreatic cancer.

BACKGROUND: Pancreatic resection with curative intent is possible in a select minority of patients with carcinomas of the pancreatic head. Diagnostic laparoscopy supported by laparoscopic ultrasonography combines the proven benefits of staging laparoscopy with high-resolution intraoperative ultrasound, thus allowing the surgeon to perform a detailed assessment of the pancreatic cancer. METHODS: In a prospective study of 26 patients with obstructive jaundice from a carcinoma of the head of the pancreas, the curative resectability of tumors was assessed by ultrasound (26 cases), computerized tomography (26 cases), endoscopic ultrasound (16 cases), and a combination of diagnostic laparoscopy and laparoscopic ultrasound (26 cases). RESULTS: The findings of ultrasound and computerized tomography were comparable: 50% of patients were excluded from curative resection. Endoscopic ultrasound provided precise information on the primary tumors. The accuracy of the combined diagnostic laparoscopy and laparoscopic ultrasound, when compared with ultrasound, computerized tomography, and endoscopic ultrasound, was better with respect to minute peritoneal or hepatic metastasis: 80.7% (or a further 30.7%) of patients did not qualify for curative resection. CONCLUSIONS: Diagnostic laparoscopy supported by laparoscopic ultrasonography enables detection of previously unsuspected metastases; thus, needless laparotomy can be avoided. It should therefore be considered the first step in any potentially curative surgical procedure.

Endosonography↗

PubMed1999

Increased tumor growth and spread after laparoscopy vs laparotomy: influence of tumor manipulation in a rat model.

BACKGROUND: The use of laparoscopy for assessment and treatment of malignant tumors remains controversial. The aim of this study was to evaluate the impact of tumor manipulation during laparoscopy compared with that of conventional laparotomy on growth and spread of an intraperitoneal tumor in the rat in a randomized, controlled trial. METHODS: Thirty 2-month-old male Lewis rats received a single-site intrapancreatic inoculation of a ductal adenocarcinoma. Fourteen days after cancer implanting, two groups of six animals each underwent a laparotomy (30 min 6 mmHg CO2 pneumoperitoneum). The tumor was manipulated in the one group, and exclusively visualized in the other. In two other groups, a midline laparotomy with (n = 6) or without (n = 6) tumor manipulation was performed. Animals in the control group (n = 6) underwent no procedure. Tumor volume, tumor mass, local regional invasion incidence, lymph node involvement, and liver and lung metastases were evaluated on 28-day tumors. RESULTS: No difference in tumor growth and spread was observed between laparoscopy and laparotomy when tumor manipulation was not carried out. Tumor manipulation increased tumor growth significantly in the laparotomy group, but not in the laparoscopy one. Tumor metastases were correlated to tumor growth and increased significantly after manipulation in both groups. There was no port-site or conventional wound seeding in either the surgical procedure. CONCLUSIONS: This study showed that manipulation is the main factor acting on tumor dissemination in both laparoscopy and laparotomy. Laparoscopic surgery had a beneficial effect on local tumor growth compared with laparotomy in the case of tumor manipulation. This beneficial effect of laparoscopic surgery may be related to a better preservation of immune function in the early postoperative period.

Analysis of Variance↗

PubMed2000

Laparoscopy and peritoneal cytology in the staging of pancreatic cancer.

Staging laparoscopy in patients with pancreatic cancer allows identification of metastatic disease which is beyond the resolution of computed tomography. Laparoscopic ultrasound, dissection, and/or peritoneal cytology may be used to enhance the sensitivity of the staging procedure. Our experience at Massachusetts General Hospital with staging laparoscopy and peritoneal cytology over the past 8 years (N = 239) reveals that approximately 30% of patients without metastases by computed tomography harbor occult metastatic disease at laparoscopy. Additionally, published series demonstrate accurate determination of resectability in greater than 75% of patients after staging laparoscopy. Staging laparoscopy in patients with pancreatic cancer allows optimization of resources and avoidance of unnecessary surgery.

Adult↗

PubMed1994

Role of staging laparoscopy in the treatment of hepatic malignancy.

Despite current radiologic imaging capabilities, 40% to 70% of patients with primary or metastatic hepatic malignancies are found to have unresectable disease at the time of laparotomy. The present study evaluates the use of laparoscopy in the staging of hepatic malignancy. Twenty-nine patients underwent staging laparoscopy prior to a planned laparotomy for resection of a hepatic malignancy that was deemed resectable by computed axial tomographic scan and ultrasonography. Twelve patients had primary hepatic malignancies, and 17 had metastatic malignancies. Laparoscopy demonstrated evidence of unresectability in 48% (14 of 29) of patients studied. Four patients had unsuspected cirrhosis, and 10 had unresectable or extrahepatic metastatic disease. Patients who underwent laparoscopy alone had shorter mean hospital lengths of stay than historical controls who underwent laparotomy alone. We conclude that diagnostic laparoscopy should precede laparotomy for planned resection of hepatic malignancies.

Carcinoma, Hepatocellular↗

PubMed1996

The diagnostic value of laparoscopy in 2365 patients with acute and chronic pelvic pain.

OBJECTIVE: To discriminate the etiology in 2365 patients with acute and chronic pelvic pain (APP, CPP). METHODS: Diagnostic laparoscopy was carried out in 736 patients (31.1%) with APP and in 1629 (68.9%) with CPP. In 315 patients (13.3%) the diagnostic procedure was extended to operative laparoscopy. RESULTS: The most frequent laparoscopic findings in patients with APP were acute salpingitis and pelvic adhesions (22.8%) and ectopic pregnancy (19%), while in patients with CPP the most frequent findings were pelvic adhesions (35.4%) and endometriosis (24.6%). In 7.5% of patients with APP and 24% with CPP, laparoscopy did not reveal any pathological finding in the pelvis. Among the 315 patients in whom operative laparoscopy was carried out, 40% suffered from APP and 60% from CPP. In the 446 patients (18.9%) without laparoscopic findings no treatment was given, while of the remaining 905 patients 40% were subjected to laparotomy and 60% received conservative treatment. The total incidence of side effects reached 4.7% and serious side effects resulting from emergency laparotomy occurred in 0.15% of patients with pelvic pain. CONCLUSION: Our results in a large group of patients with pelvic pain show that there are discrepancies in the incidence of laparoscopic findings between patients with APP and CPP. Discrepancies between the two groups of patients were also found during operative laparoscopy, the treatment administered after laparoscopic diagnosis and the complications encountered.

Acute Disease↗

PubMed1982

Incidence of pathological factors not revealed by hysterosalpingography but disclosed by laparoscopy in 500 infertile women.

Hysterosalpingography and laparoscopy were performed in 500 infertile women. Results obtained by both techniques were compared. Taking into consideration only the tubal patency, the present study shows an agreement in 90% of cases. In total of 980 fallopian tubes examined, fimbrial conglutination was suspected in 79 tubes (8%) and diagnosed by laparoscopy in 154 tubes (15.7%). Peritubal adhesions with tubal patency are a frequent pathology (23.8%) and hysterosalpingography alone permits the diagnosis in only 68.8% of the cases confirmed by laparoscopy. Other additional findings by laparoscopy are frequent: endometriosis was found in 124 women. Isolated periovarian adhesions were disclosed in 48 women. The high incidence of unsuspected pathology is an additional support in favor of laparoscopy in each case of infertility.

Adult↗

PubMed1995

Treatment of nonendometriotic benign adnexal cysts: a randomized comparison of laparoscopy and laparotomy.

OBJECTIVE: To compare laparoscopy and laparotomy in the management of benign adnexal cysts, with particular attention to postoperative convalescence. METHODS: Forty premenopausal, nonpregnant women, 18-40 years of age and without acute pelvic symptoms, were scheduled to undergo surgical management of anechoic, unilateral, unilocular, persistent adnexal cysts from January 1993 through June 1994 at the Department of Obstetrics and Gynecology of the University of Cagliari, Cagliari, Italy. After ultrasonographic examination, followed by the completion of 6 months' expectant management with repeat ultrasonographic evaluations, subjects were randomized to undergo operative laparoscopy (n = 20) or laparotomy (n = 20). The patients were reviewed postoperatively at the out-patient clinic at 15, 30, 90, and 180 days. The intensity of pain was assessed by completion of a visual analogue scale on the results of the two groups were compared. We also compared the proportions of patients who were analgesic-free on day 2, discharged from hospital within 3 days, and feeling fully recuperated on day 15. RESULTS: The intensity of postoperative pain was significantly lower (P < .05) in the operative laparoscopy group than in the laparotomy group. A significantly higher (P < .05) proportion of the laparoscopy patients was analgesic-free on day 2, discharged from the hospital within 3 days, and feeling fully recuperated on postoperative day 15. CONCLUSION: After careful patient evaluation, management of anechoic, unilocular adnexal cysts by operative laparoscopy significantly reduces both the intensity of postoperative pain and the length of convalescence compared with laparotomy.

Adolescent↗

PubMed2004

Obesity: physiologic changes and challenges during laparoscopy.

OBJECTIVE: The purpose of this report was to describe the evidence for the benefits of laparoscopic surgery in obese patients, to review the physiologic abnormalities that are associated with obesity, and to explore surgical techniques that will enable surgeons to perform laparoscopy successfully in obese patients. STUDY DESIGN: This article is a review of the available literature on obesity, the physiologic changes that occur in obese patients, and the impact of these changes on laparoscopy outcomes. RESULTS: Obesity is associated with sudden death and a wide range of morbid conditions such as hypertension, atherosclerosis, angina, chronic obstructive disease, and diabetes mellitus. Recent studies have demonstrated that obese patients who undergo laparoscopy have shorter hospital stays, less postoperative pain, and fewer wound infections when compared with obese patients who undergo laparotomy. Laparoscopy patients also have fewer postoperative ileus and fevers. CONCLUSION: With thorough preparation and careful preoperative evaluation, laparoscopy can be performed safely and is the preferred surgical method in obese patients.

Adipose Tissue↗

PubMed2006

Anesthesia for laparoscopy: a review.

Laparoscopy is the process of inspecting the abdominal cavity through an endoscope. Carbon dioxide is most universally used to insufflate the abdominal cavity to facilitate the view. However, several pathophysiological changes occur after carbon dioxide pneumoperitoneum and extremes of patient positioning. A thorough understanding of these pathophysiological changes is fundamental for optimal anesthetic care. Because expertise and equipment have improved, laparoscopy has become one of the most common surgical procedures performed on an outpatient basis and to sicker patients, rendering anesthesia for laparoscopy technically difficult and challenging. Careful choice of the anesthetic technique must be tailored to the type of surgery. General anesthesia using balanced anesthesia technique including several intravenous and inhalational agents with the use of muscle relaxants showed a rapid recovery and cardiovascular stability. Peripheral nerve blocks and neuraxial anesthesia were both considered as safe alternative to general anesthesia for outpatient pelvic laparoscopy without associated respiratory depression. Local anesthesia infiltration has shown to be effective and safe in microlaparoscopy for limited and precise gynecologic procedures. However, intravenous sedation is sometimes required. This article considers the pathophysiological changes during laparoscopy using carbon dioxide for intra-abdominal insufflation, outlines various anesthetic techniques of general and regional anesthesia, and discusses recovery and postoperative complications after laparoscopic abdominal surgery.

Anesthesia↗

PubMedDate not supplied

Laparoscopy in the evaluation of women with unexplained ascites: an invaluable diagnostic tool.

STUDY OBJECTIVE: To assess whether laparoscopy is a reliable technique for the investigation of women presenting with ascites and in whom the diagnosis remains obscure. DESIGN: Prospective nonrandomized clinical study (Canadian Task Force classification II-2). SETTING: University Departments of a tertiary referral center. PATIENTS: Women presenting in our institution with ascites in whom the diagnosis remained obscure after an extensive nonoperative diagnostic work-up. INTERVENTION: Undiagnosed cases were submitted to laparoscopy, and selective biopsy specimens were taken for histologic study. MEASUREMENTS AND MAIN RESULTS: Over a 3-year period, 73 patients were admitted to our institution with diffuse ascites. In 9 patients (12.3%), the diagnosis remained obscure, and these patients were further investigated with laparoscopy. Selective biopsy specimens obtained at laparoscopy clarified the specific cause of the ascites in all 9 patients. Peritoneal carcinomatosis was responsible in 5 patients (a metastatic gastrointestinal tumor in 1 patient, a malignant mesothelioma of the peritoneum in 1 patient, and a serous papillary carcinoma of the peritoneum and of the ovary in 2 and 1 patients, respectively). Three patients were found with miliary peritoneal tuberculosis, and the last patient had an unusual peritoneal reaction to methylene blue after laparoscopic adhesiolysis. CONCLUSION: Laparoscopy is a valuable means of assessing the peritoneal cavity in patients with unexplained ascites, where the primary cause remains unclear. The diagnosis can be accurately made with selective biopsy specimens, and appropriate treatment can be instituted without delay.

Adult↗

PubMed2005

The utility of hand-assisted laparoscopy in ovarian cancer.

INTRODUCTION: The traditional approach to patients with ovarian cancer is cytoreductive surgery and surgical staging through a vertical midline laparotomy. While laparoscopy has become an integral part of gynecologic surgery, debulking procedures have not been feasible to date with standard minimally invasive techniques. METHODS AND MATERIALS: Twenty-five patients with ovarian carcinoma underwent surgical staging and cytoreduction using hand-assisted laparoscopy. We review the surgical technique and clinical outcomes. RESULTS: Twenty-five patients were managed during this study time frame with hand-assisted laparoscopy. Six patients had apparent advanced stage ovarian cancer at the time of referral, and 17 patients had apparent early-stage ovarian cancer. Of the 19 patients with presumed early-stage disease, 5 patients were upstaged based on retroperitoneal lymph node involvement, 3 with disease to other pelvic structures, and 2 patients had microscopic disease in the omentum. Twenty-two patients had their surgeries completed via hand-assisted laparoscopy, and three cases required conversion to laparotomy for completion of debulking surgery. Complication rates were low with three complications requiring reoperation or hospitalization. The mean hospital stay was 1.8 days for the 22 patients who had a successful hand-assisted laparoscopic evaluation. Operating times were variable and ranged from 81 to 365 min. CONCLUSION: Hand-assisted laparoscopy may be employed in the initial management of early and advanced stage ovarian carcinoma. This approach allows for thorough evaluation of peritoneal and retroperitoneal structures and surgical cytoreduction while retaining the advantages of minimally invasive surgery.

Adult↗

PubMed2005

Analysis of morbidity in patients with endometrial cancer: is there a commitment to offer laparoscopy?

OBJECTIVE: Benefits of laparoscopy over laparotomy in patients with endometrial cancer (EC) are well known. As many patients with EC carry co-morbid conditions, surgery is exposing them to increased risk of complications. A review of the patients with EC recruited so far in a clinical trial comparing laparoscopy to laparotomy was performed. The goal was to identify patients carrying specific risk factors for complications, who would most benefit of laparoscopy and be the ideal candidates for this surgical approach. PATIENTS AND METHODS: Between July 1995 and December 2002, 122 patients with uterine cancer entered the study. Sixty-three patients were allocated to the laparoscopy (LPS) arm (group A), while 59 were allocated to the laparotomy (LPT) arm (group B). Rate and type of intra-, early and late post-operative complications were prospectively recorded. Risk factors for complications are analyzed to define a group of patients truly benefiting from laparoscopy. RESULTS: Overall, 12 patients out of 122 (9.8%) have experienced intra-operative, 43 patients out of 122 (35.2%) early post-operative and 25 patients out of 122 (20.4%) late post-operative complications. Rate of intra-operative complications was 4.7% in group A (3 patients out of 63) vs. 15.2% in group B (9 patients out of 59), P = 0.082. Early post-operative complications rate was 23.8% in group A (15 out of 63) and 47.4% in group B (28 out of 59), P = 0.011. Rate of late post-operative complications was 7.9% (5 out of 63) in group A vs. 35.5% (21 out of 59), P = 0.001. Univariate analysis shows co-morbid medical conditions, weight >80 kg, Quetelet index >30 and age >65 years to be predictive of complications and, in fact, a subgroup of patients presenting with these characteristics (n = 57, 30 in group A and 27 in group B) has been recognized to accumulate 60% of the overall complications. In these patients, multivariate analysis identifies the surgical technique (LPS vs. LPT) to be the only significant risk factor for complications. CONCLUSION: At least one third of the patients with EC carry serious co-morbidities with an increased surgical risk for complications. For this subgroup of patients, a laparoscopic-vaginal approach significantly reduces the rate of complications and should be the standard of surgical treatment.

Adult↗

PubMed1993

Role of laparoscopy in the evaluation of abdominal trauma.

This prospective study was designed to determine if laparoscopy is a safe and accurate method for abdominal evaluation in the trauma patient. Thirty-two patients who presented with blunt or penetrating trauma and who were scheduled for celiotomy based on clinical evaluation constituted the study group. The patients underwent diagnostic laparoscopy prior to exploratory celiotomy. One of 6 (16%) patients with blunt abdominal trauma and 5 of 26 (19%) patients with penetrating abdominal trauma had significant injuries that were found at the time of operation but not visualized during laparoscopy. The missed injuries involved the liver, pancreas, stomach, duodenum, small bowel, small bowel mesentery, ureter, and urinary bladder. The correlation between the laparoscopist and the trauma surgeon as to the need to perform a celiotomy was 97%. Complications occurred in 2 of 32 patients. Eleven patients with anterior abdominal penetrating injuries had no evidence of penetration of the abdominal cavity at laparoscopy, and had no evidence of injury at celiotomy. We concluded that (1) there are areas within the abdominal cavity that cannot be accurately visualized with laparoscopy; (2) the evaluation of penetration of the peritoneal cavity from anterior penetrating injury appears to be accurate; (3) a number of injuries were not identified; and (4) further investigation of this procedure for the evaluation of abdominal trauma is required to assess its safety and accuracy.

Abdominal Injuries↗

PubMed1986

Ultrasonically guided oocyte collection under local anesthesia: the first choice method for in vitro fertilization--a comparative study with laparoscopy.

Ultrasonically guided oocyte collection gradually replaces laparoscopy in many in vitro fertilization (IVF) centers. In the present study we compare the efficacy of both methods in our IVF program. One hundred twenty patients were prospectively randomized into two groups. Sixty women underwent oocyte collection during laparoscopy under general anesthesia, and 60 women under ultrasound guidance with local anesthesia. Superovulation was induced with human menopausal gonadotropin/human chorionic gonadotropin. For the oocyte collection a cannula with a trocar was used for single percutaneous puncture, through which both ovaries could be reached by the aspiration needle. The number of aspirated oocytes and transferred embryos was higher in the laparoscopy group as compared with the ultrasound group (5.3 versus 4.0 per woman and 3.0 versus 2.3 per woman, respectively); but the clinical pregnancy rate per cycle was similar in both groups (12.5% versus 14.5%). Ultrasound aspiration seems to be as effective as laparoscopy in terms of oocyte retrieval and conception rates. Because the procedure is simple and inexpensive, we believe that it may replace laparoscopy as a method for oocyte collection in most patients who undergo IVF.

Adult↗