The fetoscopic approach to fetal intervention is a promising minimally invasive technique for correcting congenital anomalies in utero. However, expansion of the amniotic cavity with CO2 to visualize ...the fetus causes fetal hypercarbia and acidosis. We assessed whether maternal hyperventilation during intrauterine CO2 insufflation could attenuate the fetal hypercarbic acidosis. Seven fetal lambs of 105 +/- 2 days (mean +/- SEM) gestation (term = 145 days) were instrumented with a carotid arterial catheter in utero. After 7 +/- 1 days of recovery, fetoscopic exposure was obtained with intrauterine insufflation of CO2 at 10 mmHg of intraamniotic pressure. After 30 min, the ewe was hyperventilated at a mean respiratory rate of 23/min for 30 min under continuous insufflation. The uterus was then deflated and following 1 hr of stabilization, and the same protocol of CO2 pneumometrium was repeated. Fetal and maternal arterial blood was sampled at baseline and at 15 min intervals. Fetal PaCO2 increased during 30 min of CO2 insufflation (50.8 +/- 2.8 vs. 72.3 +/- 5.0 mmHg, P < 0.01); however, this change was reversed (to 51.5 +/- 3.0 mmHg, P < 0.01) by 30 min of maternal hyperventilation. The fetus developed acidosis after 30 min of CO2 pneumometrium (pH 7.350 +/- 0.012 vs. 7.236 +/- 0.026, P < 0.01); this was also reversed (to 7.366 +/- 0.019, P < 0.01) by maternal hyperventilation. These results were reproducible during the second CO2 insufflation challenge. Fetal hypercarbic acidosis during fetoscopy with CO2 insufflation is reduced by maternal hyperventilation.
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IJS, IMTLJ, KILJ, KISLJ, NUK, SBCE, SBJE, UL, UM, UPCLJ, UPUK
HYPOTHESIS Esophageal intubation with a bougie during laparoscopic Nissen fundoplication (LNF) is commonly used to prevent an excessively tight wrap. However, a bougie may cause intraoperative ...gastric and esophageal perforations. We hypothesized that LNF is safe and effective when performed without a bougie. DESIGN Retrospective review of 102 consecutive patients who underwent LNF without a bougie. SETTING Tertiary care university hospital. PATIENTS All patients presented with symptoms of reflux disease. Mean (± SD) percentage of time with pH of less than 4 was 12.6% ± 9.4%. Mean DeMeester score was 47.8. Mean (± SD) resting lower esophageal sphincter pressure was 15.0 ± 9.4 mm Hg. Mean (± SD) distal esophageal amplitude was 69.4 ± 39.2 mm Hg. INTERVENTION During LNF, we obtained 2 to 3 cm of intra-abdominal esophagus, divided all short gastric vessels, reapproximated the crura, and performed a loose 360° fundoplication without a bougie. MAIN OUTCOME MEASURES Postoperative rates of dysphagia, gas bloat, and recurrent reflux. RESULTS In the early postoperative period, 50 patients (49.0%) complained of mild, 11 (10.8%) of moderate, and 7 (6.9%) of severe dysphagia. Average (± SD) duration of early dysphagia was 4.6 ± 2.1 weeks. Dysphagia resolved in 61 (89.7%) of 68 patients within 6 weeks. Late resolution of dysphagia was noted in 4 (5.8%) patients. Three patients were successfully treated with esophageal dilatations. Persistent dysphagia was found in 1 patient. Thirty patients (29.4%) had transient gas bloat. Mild persistent reflux, requiring daily medication, was noted in 5 (4.9%) patients. CONCLUSIONS Performance of LNF without a bougie offers a safe and effective therapy for gastroesophageal reflux disease. While avoiding the potential risks for gastric and esophageal injury, it may provide low rates of long-term postoperative dysphagia and reflux recurrence.Arch Surg. 2002;137(4):402-406-->
Aortobifemoral bypass grafting is a durable operation for arterial reconstruction in patients with symptomatic aortoiliac occlusive disease. In several small laparoscopic series technically demanding ...aortic operations have been described that have not gained widespread acceptance or applicability. To simplify the laparoscopic approach to the aorta, we have developed a technique of aortobifemoral bypass grafting that uses hand-assisted laparoscopic surgery (HALS) to minimize the complexity of aortic dissection and reconstruction.
Five patients with symptomatic aortoiliac occlusive disease underwent successful HALS aortobifemoral bypass grafting. With the use of a specialized sleeve device (Hand-Port), an operative hand was introduced into the laparoscopic field while pneumoperitoneum was maintained. Laparoscopic dissection of the infrarenal aorta was then performed with retraction provided by the operative hand. Proximal aortic anastomosis was performed with an open technique through the same 7.5-cm Hand-Port incision, and femoral anastomoses were performed in the standard fashion.
Five hand-assisted laparoscopic aortobifemoral bypass grafts were performed (two end-to-end, three end-to-side proximal anastomoses). Mean operative time was 231 minutes. Mean blood loss was 440 mL. All patients underwent extubation immediately after surgery, were ambulatory on postoperative day (POD) 1, and were tolerating their diet by POD 3. The mean length of hospital stay was 3.8 days. One patient was discharged on POD 5 and started a clear liquid diet after a self-limiting postoperative ileus. All patients were asymptomatic and back to full activity/work by 14.6 days postoperatively, on average (range, 11-20 days).
The HALS offers the advantages of tactile feedback, flexible retraction, and the introduction of conventional surgical instruments, all of which extend laparoscopic surgery and its established benefits to a wide array of more complex surgical problems, including major vascular surgery. Ease of performance, shorter hospital stays, and faster recovery times all suggest that HALS may become a valuable adjunct to conventional aortobifemoral bypass grafting.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Cystic duct leak is a rare complication of laparoscopic surgery. To study the incidence, presentation, and management of cystic duct leak (CDL) after laparoscopic cholecystectomy (LC) a retrospective ...study of centers doing large numbers of LC was done.
Patient information was obtained by a questionnaire sent to experienced laparoscopic surgeons. This queried demographic information, course of the original operation, presentation, diagnostic studies, and management of CDL after LC.
Some 22, 165 LCs were performed by 24 surgeons; there were 58 cases of CDL (0. 26%); 21% of the surgeons reported no CDLs; 60% of CDLs occurred in the first 25% of each surgeon's experience, but CDLs continue to occur even in their most recent 10% of cases. Preoperative symptoms, prior surgery, and comorbid conditions did not predict CDL. Acute cholecystitis was present at initial surgery in 47%. Symptoms of CDL an average of 3.1 days post-LC were abdominal pain 78%, fever 26%, nausea 35%, vomiting 22%, abdominal distention 26%, and shoulder pain 12%. WBCs and LFTs were elevated in more than two-thirds of the cases. ERCP was most frequently used to diagnose CDL (53%) and was successful in 97%, although sonogram (40%) and HIDA scan (26%) and CT (26%) were also used. Management included ERCP and ductal decompression in 27 patients, percutaneous drainage in 13 patients, open laparotomy in 14, laparoscopy in three, and observation in two. Patients were discharged an average of 7.4 days post discovery of leak. Stents were removed an average of 30 days post ERCP. Ninety-four percent were complete cures. There was one post-treatment abscess. Two deaths due to multisystem failure unrelated to leak occurred.
Cystic duct leak is rare and fairly easily diagnosed. It occurs more frequently during the learning curve, but also after much experience. ERCP and ductal decompression play a large role in treatment, but almost all standard methods of treatment yield successful outcomes with low morbidity.
To describe the technique and results of laparoscopic transabdominal preperitoneal (TAPP) hernia repair. A case series, with a detailed description of the operative technique. A university affiliated ...hospital. A consecutive series of 554 patients (494 male, 60 female) who underwent laparoscopic hernia repair in a single institution. The mean follow-up was 14 months. Laparoscopic TAPP hernia repair was performed in almost all patients. Simple closure was performed in a patient with a strangulated hernia, and a mesh-based repair was used in a patient with bilateral obturator hernias. Complications and recurrence. The laparoscopic TAPP repair was successful in 550 of the 554 patients who underwent 632 hernia repairs. conversion was necessary in 4 patients. Complications were infrequent and there were no recurrences. Only 3.4% of patients were lost to follow-up. The most frequent complications were urinary retention (27) and hematoma and seroma (38) in the early postoperative period. Neuralgia (11) and hydrocele (10) also occurred. Mesh infection occurred in only 1 patient and port-site hernias in 3 patients. there was 1 death from an acute myocardial infarction. Laparoscopic TAPP hernia repair is associated with an exceedingly low recurrence rate and an acceptable complication rate.
Hand-assisted laparoscopic surgery Kaban, Gordie K; Czerniach, Donald R; Litwin, Demetrius E M
Surgical technology international,
2003, Volume:
11
Magazine Article
The introduction of hand-assisted laparoscopic surgery (HALS) has occurred in several surgical specialties. It allows the laparoscopic surgeon to insert a hand into the peritoneal cavity, through a ...small incision, while maintaining pneumoperitoneum. This technique has been made possible through the engineering of several unique devices. By returning the hand to the peritoneal cavity, the surgeon is allowed the return of tactile sensation, atraumatic retraction, blunt dissection, and digital vascular control. Proper device placement is mandatory. The principles include port-site triangulation, conversion to a convenient open incision if necessary, location away from bony prominences, and placement to minimize hand fatigue. Application and advantages of HALS can be shown in several procedures; specifically, laparoscopic splenectomy in cases of splenomegaly, laparoscopic live-donor nephrectomy, and laparoscopic sigmoid colectomy for diverticular disease. Its use in these procedures does not appear to be detrimental to the benefits associated with a completely laparoscopic technique, and may offer advantages. It may alter the learning curve regarding advanced laparoscopic procedures for the neophyte laparoscopic surgeon, and allow them to perform operations they otherwise would not attempt. For the experienced laparoscopic surgeon, it may allow them to complete operations laparoscopically they might otherwise have to convert. In time, HALS may have a larger role in many advanced surgical procedures.
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