Laparoscopic Surgery for Intestinal Obstruction Caused by an Internal Paracecal Hernia.

Paracecal hernia is rarely associated with ischemia and has seldom been reported in the few published studies in the review literature. We present a case of incarcerated paracecal hernia with intestinal obstruction that was effectively treated with laparoscopic intervention. A 64-year-old woman who had not previously undergone any intestinal surgery arrived complaining of abdominal pain and vomiting at our hospital. Abdominal computed tomography suggested intestinal obstruction. A laparoscopic emergency procedure demonstrated an incarcerated small bowel loop in the paracecal region. The confined small bowel was removed from the paracecal area. On the fourth postoperative day, the patient was discharged. This case is unusual because the patient presented with small bowel strangulation, leading to intestinal obstruction. Laparoscopic surgery is beneficial for diagnosing internal hernias and curing small-bowel obstructions caused by paracecal hernias.

Laparoscopic Appendectomy Using the Surgical-Glove Port Through an Umbilical Incision: A Single-Center Retrospective Study.

Background Single-incision laparoscopic appendectomy (SILA) has recently emerged as a promising alternative for the management of acute appendicitis. This study aimed to compare the surgical outcomes of the SILA with those of three laparoscopic appendectomies (TLA) procedures using the existing equipment, the 10-mm laparoscope, and the surgical-glove port method. Methodology Between February 2021 and February 2022, this single-center retrospective study examined 68 patients who underwent laparoscopic appendectomy by a single surgeon. The study excluded patients with severe appendicitis, grade IV-V, following the American Association for the Surgery of Trauma classification. Clinical outcomes were analyzed, including operation time, hospital stay, postoperative pain, and postoperative morbidity. Results There were no statistically significant differences between SILA and TLA patients, respectively, in operation time (37.5 minutes vs. 35 minutes, p = 0.261) and the median duration of hospitalization (three days vs. three days, p = 0.929). There was no difference in the mean visual analog scale score between the two groups on the first day (p = 0.852), second day (p = 0.540), and the day of discharge from the hospital (p = 0.686), as well as return to diet (two days vs. two days, p = 0.053). Two (10%) cases of short-term complications in the SILA group and one (2.1%) case in the TLA group were noted. Conclusions SILA performed through a handmade surgical-glove port is a safe and viable therapy option for mild-to-moderate appendicitis. When the hospital lacks a specialized laparoscopic single-incision surgical system, this technique should be used on patients.

Laparotomy management of diaphragmatic and hollow viscera rupture combined with thoracic endovascular aortic repair after a traffic accident: A case report.

INTRODUCTION: Road traffic incidents are the most common cause of multiple organ trauma in low- and middle-income countries. Multiple blunt intra-abdominal organs that rupture in conjunction with a ruptured aorta are terrible and rare. CASE PRESENTATION: A 65-year-old man sustained critical injuries during a traffic collision between a motorcycle and truck. The Injury Severity Score was 42 points,. After open abdominal exploration, we repaired the left diaphragmatic rupture with a 13-cm-long tear of IV grade (American Association for the Surgery of Trauma), resected partial small bowel, simple suture of the transverse colon, and Hartmann procedure in the descending colon. Thoracic endovascular aortic repair (TEVAR) was performed 22 h after laparotomy. Reconstruction of the head depicting a cheekbone fracture and inferior to the left orbital bone was performed on the 14th day. The patients survived and were discharged from the hospital, at 22 days without morbidity or mortality. DISCUSSION: Diaphragmatic rupture provides a signal to relate head, thoracic, and abdominal blunt trauma. If the patient sustains more serious life-threatening injuries that require emergency laparotomy or craniotomy, and aortic repair may be delayed. Laparotomy is the best initial surgical method in this case. TEVAR is a feasible and gold standard procedure for the treatment of patients with the necessary indications. CONCLUSION: It is essential to evaluate the level of organ damage to properly coordinate the specialists. The timing of the operation and therapeutic alternatives should be decided for each patient.

Laparoscopic Surgery for Diagnosis and Treatment of Acute Right Upper-Quadrant Abdominal Pain Due to Omental Infarction: A Report of a Rare Case in a Single Vietnamese Hospital.

BACKGROUND Omental infarction (OI) is an infrequent cause of acute abdominal pain, and there is no consensus on whether conservative or surgical treatment should be performed. The clinical manifestations are nonspecific, so many patients are referred for surgery because of acute abdominal signs that may indicate other diseases such as cholecystitis, appendicitis, or peptic ulcer perforation. In most cases, infarction of the greater omentum is diagnosed only during emergency surgery for other diseases of the abdomen. Currently, multisequence computed tomography is performed for acute abdomen, and this disease is increasingly diagnosed preoperatively. CASE REPORT We report on 2 patients who were referred to our Emergency Department for acute abdominal pain. Both were female and middle-aged. The first patient presented with vomiting and right upper-quadrant pain with thickened and right subcostal omental infiltration on computed tomography (CT). The second patient presented with right subcostal pain and fever. CT showed signs of infiltration, thickening of the omentum, and a right upper subcostal mass measuring 22×60 mm. We performed emergency laparoscopic surgery to explore the abdominal cavity. Both patients were discharged after 3 days. CONCLUSIONS Omentum infarction is a rare disease that causes a diagnostic dilemma, as there is a wide spectrum of causes of acute abdomen. Many patients are diagnosed only during surgery. Laparoscopic surgery should be performed as soon as possible.

N-doped reduced graphene oxide-PEDOT nanocomposites for implementation of a flexible wideband antenna for wearable wireless communication applications.

We report a flexible and highly efficient wideband slot antenna based on a highly conductive composite of poly(3,4-ethylenedioxythiophene) (PEDOT) and N-doped reduced graphene oxide (N-doped rGO) for wearable applications. The high conductivity of this hybrid material with low sheet resistance of 0.56 Ω/square, substantial thickness of 55µm, and excellent mechanical resilience (<5.5% resistance change after 1000 bending cycles) confirmed this composite to be a suitable antenna conductor. The antenna achieved an estimated conduction efficiency close to 80% over a bandwidth from 3 to 8 GHz. Moreover, the successful operation of a realized antenna prototype has been demonstrated in free space and as part of a wearable camera system. The read range of the system was measured to be 271.2 m, which is 23 m longer than that of the original monopole antennas provided by the supplier. The synergistic effects between the dual conjugated structures of N-doped rGO and PEDOT in a single composite with fine distribution and interfacial interactions are critical to the demonstrated material performance. The N-doped rGO sheet reinforces the mechanical stability whereas the PEDOT functions as additive and/or binder, leading to an improved electrical and mechanical performance compared to that of the graphene and PEDOT alone. This high-performing nanocomposite material meets requirements for antenna design and opens the door for diverse future non-metallic flexible electronic device developments.

Activation of few layer graphene by µW-assisted oxidation in water via formation of nanoballs - Support for platinum nanoparticles.

The functionalization of carbon nanomaterials in controlled and selective manner and in order to stabilize small metal nanoparticles is of high interest particularly in the catalysis field. We present the µ-waves assisted few layer graphene (FLG) oxidation in water, which results in a partial sheets exfoliation and formation of oxygen functionalized carbon nanoballs, supported on highly graphitized graphene sheets. This double morphology material allows homogenous anchoring of Pt nanoparticles, while the advantages of planar and highly crystallized FLG are preserved. For comparison, acid treated FLG (conventional heating) exhibits highly hydrophobic and inert surface with carboxylic groups as anchoring sides localized at the FLG edges. Despite similar oxygen content, the performed physicochemical analyses depict different nature and localization of the oxygen/defects functionalities introduced in water (in µ-waves) and acid treated FLGs. Finally, the addition of FLG during the preparation of Pt particles-carried out by µ-wave assisted polyol method yields small nanoparticles with average size of 1nm.