Biomedical subjects

Li-Ming Tseng

Publications and source records attributed to Li-Ming Tseng.

7 recordsLinked to original sources

PubMed2006

Impact of previous abdominal surgery on laparoscopic appendectomy for acute appendicitis.

BACKGROUND: Laparoscopic appendectomy is one of the most commonly performed laparoscopic procedures. Impact of previous abdominal surgery on laparoscopic appendectomy has not been previously reported. METHODS: From January 2001 to December 2005, 2029 patients with clinically suspected acute appendicitis underwent laparoscopic surgery in our hospital. Of these, 234 patients (11.5%) were found to have other pathology by intraoperative or histologic findings and were excluded from the study. The 1795 patients who underwent laparoscopic appendectomy for acute appendicitis were divided into three groups: group 1, patients without a history of previous abdominal surgery (n = 1652, 92%); group 2, patients with a history of upper abdominal surgery (n = 20, 1.1%); group 3, patients with a history of lower abdominal surgery (n = 123, 6.8%). Data were collected retrospectively by chart review and analyzed for conversion rate, operative time, intraoperative and postoperative complications, and hospital stay. RESULTS: Of the 1795 patients, 13 (0.7%) were converted to open appendectomy because of technical difficulty. Overall mean operative time was 57.2 (range, 20-225) min. There was no mortality or intraoperative complications. Overall postoperative complication rate was 10.7% (n = 193): rate of surgical wound infection was 8.2% (n = 147), surgical wound seroma 1.3% (n = 24), and intra-abdominal abscess 0.8% (n = 14). Overall postoperative hospital stay averaged 3.2 (range, 0-39) days. There were no significant differences between the three groups regarding the conversion rate (0.8% vs. 0% vs. 0%, p = 0.567), operative time (57.3 vs. 55.8 vs. 56.9 min, p = 0.962), postoperative complication rates (10.7 vs. 10 vs. 12.2%, p = 0.863), and hospital stay (3.2 vs. 3.6 vs. 3.1 days, p = 0.673). CONCLUSIONS: Previous abdominal surgery, whether upper or lower abdominal, has no significant impact on laparoscopic appendectomy for acute appendicitis.

Acute Disease↗

PubMed2006

Laparoscopic versus open appendectomy for perforated appendicitis.

The role of laparoscopic appendectomy (LA) for perforated appendicitis is under investigation. A retrospective study was conducted to compare the outcomes of laparoscopic versus open appendectomy (OA) for perforated appendicitis. From January 2001 through December 2003, 229 patients with perforated appendicitis were treated at Far-Eastern Memorial Hospital. LA was successfully completed in 91 of 99 patients. OA was performed in 130 patients. Operation time was longer in the LA group (mean +/- SD = 96.1 +/- 43.1 vs. 67.8 +/- 32.2 minutes, P < 0.01). Return of oral intake was faster in the LA group (3.2 +/- 2.4 vs. 5.0 +/- 7.0 days, P < 0.01). The intravenous antibiotic usage period was shorter in the LA group (4.4 +/- 2.8 vs. 6.3 +/- 7.1 days, P < 0.01). The postoperative wound infection rates were 15.2 % (LA group) and 30.7% (OA group). The overall infectious complication rates were 19% in the LA group and 37% in the OA group (P < 0.01). Hospital stay days were shorter for the LA group (6.3 +/- 2.9 vs. 9.3 +/- 8.6 days, P < 0.01). Our results indicated that laparoscopic appendectomy is a safe and effective procedure for treating patients with perforated appendicitis.

Adult↗

PubMed2006

Laparoscopic diagnosis and treatment of small bowel obstruction caused by postoperative intussusception.

Small bowel obstruction is a common problem, especially for patients who have had previous abdominal surgery possibly complicated by postoperative adhesions. In contrast to adhesions, postoperative intussusception is an unusual cause of small bowel obstruction. We report a case of small bowel obstruction that occurred one month after antrectomy for duodenal ulcer with massive bleeding. Laparoscopic surgery was attempted after conservative treatment failed. A segment of jejunojejunal intussusception about 50 cm below the ligament of Treitz was identified and laparoscopic reduction of the intussusception was performed. The patient had an uneventful postoperative course and remained asymptomatic at 10-month follow-up. Although not frequently encountered, postoperative intussusception should be considered a possible etiology in patients with postoperative small bowel obstruction. In experienced hands, the laparoscopic approach offers a feasible option for correct diagnosis and appropriate treatment in this situation.

Adult↗

PubMed2005

Bicycle-handlebar hernia: a rare traumatic abdominal wall hernia.

Handlebar hernia is a rare, traumatic, abdominal wall hernia caused by high-velocity direct trauma. It involves disruption of the abdominal wall muscles, with bowel loop herniated through the defect in the abdominal wall, and may have major or even lethal complications. We report a case of bicycle-handlebar hernia in a 9-year-old boy who had all layers of his abdominal wall disrupted by a fall when bicycling; however, his skin and intra-abdominal organs were completely intact. Computed tomography demonstrated subcutaneous intestinal loops protruding through the rent. Primary repair was performed, and his postoperative course was uneventful.

Abdominal Injuries↗

PubMed2005

Arterial misplacement of a femoral central venous catheter complicated with acute arterial occlusion.

Femoral vein catheterization is often carried out during resuscitation and in critical care units. It is usually achieved via a blind, external landmark-guided technique, through manual localization of the femoral artery. However, this approach can be challenging in patients with severe shock because of absence or ambiguity of the arterial pulse. We report a case of inadvertent cannulation, with a large-bore catheter, of the right femoral artery, which was mistaken as a venous route for medication and massive transfusion. The large cannula caused direct mechanical obstruction, while intra-arterial medications induced vascular injury and vasospasm. Both factors led to thrombosis and occlusion of the right external iliac artery, thus jeopardizing the distal blood supply, and ultimately resulting in muscle necrosis of the involved limb, and the need for thrombectomy and extensive fasciotomy to salvage the extremity. This case highlights that correct placement of a central venous catheter should be clearly ascertained before the catheter is used for medical treatment, especially when catheterization is performed in shock status.

Arterial Occlusive Diseases↗

PubMed2005

Laparoscopic appendectomy in pregnancy.

BACKGROUND: Laparoscopic appendectomy (LA) is a safe, effective, and beneficial procedure for the treatment of acute appendicitis. However, limited data are available regarding the safety and feasibility of LA during pregnancy. METHODS: Between January 2001 and August 2004, 1235 patients with clinically suspected appendicitis underwent laparoscopic surgery at our hospital. Eleven patients (0.9%) were pregnant women (mean age, 25 years; age range, 19-37 years; range of gestational age, 4-30 weeks). Clinical data collected retrospectively included demographic information; preoperative, procedural, and postoperative information; and outcome of the pregnancy. RESULTS: All 11 pregnant women underwent laparoscopic surgery without need of conversion. Ten patients underwent LA and were found to have acute appendicitis on histologic analysis. One patient had torsion of the right fallopian tube and a healthy-looking appendix; she underwent detorsion of the fallopian tube and incidental appendectomy. Mean operative time was 50.5 minutes (range, 20-135 minutes). Length of postoperative hospital stay averaged 4.2 days (range, 1-11 days). One patient had a surgical wound infection, which was managed conservatively. Mean follow-up period was 14 months (range, 2-46 months). Seven pregnant women delivered healthy term infants, 2 had planned abortions, and 1 experienced fetal loss due to uterine infection and premature contractions 1 month after LA. Another patient had normal results at prenatal examination. CONCLUSION: Our data support the accumulating evidence that LA is a safe and feasible procedure for the treatment of acute appendicitis in all trimesters of pregnancy. Close maternal and fetal monitoring is essential during and after the operation.

Adult↗

PubMed2005

Laparoscopic diagnosis and treatment of acute small bowel obstruction resulting from a congenital band.

Acute small bowel obstruction is a common problem, especially for those patients with previous abdominal surgery that can cause postoperative adhesions. Acute, non-postoperative small bowel obstruction is less common and has various etiologies. We report a case of acute small bowel obstruction without previous abdominal surgery. The patient underwent laparoscopic exploration, and a congenital band was found to cause direct compression of the ileum and entrapment of a segment of bowel loop. There was evidence of bowel strangulation. The color and peristalsis of the entrapped bowel loop recovered gradually after division of the band, and segmental bowel resection was avoided. He has remained asymptomatic since the procedure. We suggest early and aggressive surgical intervention for patients with acute, non-postoperative small bowel obstruction to avoid possible complications of bowel strangulation and gangrene. A laparoscopic approach may be a safe, feasible, and favorable option for correct diagnosis and appropriate treatment in this situation.

Acute Disease↗