Abdominal wound dehiscence and incisional hernia prevention in midline laparotomy: a systematic review and network meta-analysis.

BACKGROUND: Incisional hernia (IH) is the main complication after laparotomy. In an attempt to reduce this complication, mesh techniques and studies in which the closure technique is modified have been proposed. Both types are characterized by comparison with the closure described as standard or conventional: 1 × 1, mass, and continuous closure. For this study, modified closure techniques (MCTs) were considered as those techniques in which an extra suture is placed (reinforced tension line (RTL), retention), the closure point is modified in distance (small bites) or shape (CLDC, Smead Jones, interrupted, Cardiff point) and which aim to reduce these complications. The objective of this network meta-analysis (NMA) was to evaluate the effectiveness of MCTs for reducing the incidence of IH and abdominal wound dehiscence (AWD) to provide objective support for their recommendation. METHODS: An NMA was performed according to the PRISMA-NMA guidelines. The primary objective was to determine the incidence of IH and AWD, and the secondary objective was to determine the incidence of postoperative complications. Only published clinical trials were included. The risk of bias was analyzed, and the random-effects model was used to determine statistical significance. RESULTS: Twelve studies comparing 3540 patients were included. The incidence of HI was lower in RTL, retention suture, and small bites, these techniques showed statistical differences with pooled ORs (95% CI) of 0.28 (0.09-0.83), 0.28 (0.13-0.62), and 0.44 (0.31-0.62), respectively. Associated complications, including hematoma, seroma, and postoperative pain, could not be analyzed; however, MCTs did not increase the risk of surgical site infection. CONCLUSION: Small bites, RTL, and retention sutures decreased the prevalence of IH. RTL and retention suture decreased the prevalence of AWD. RTL was the best technique as it reduced both complications (IH and AWD) and had the best SUCRA and P-scores, and the number needed to treat (NNT) for net effect was 3. REGISTRATION: This study was prospectively registered in the PROSPERO database under registration number CRD42021231107.

Isolated Limb Perfusion on Nonmelanoma Skin Cancer for Limb Salvage: A Series of Four Cases.

Nonmelanoma skin cancer (NMSC) is more prevalent than all the other cancers combined together. The most common regions affected by skin cancer are the head and neck, but there is a large proportion of the cases located on the limbs. They could be bulky, very extensive and/or located in specialized regions like the hands or near to a joint. Most of those cases should be amputated, with several compromises of the function and a negative impact on the patients' quality of life. Isolated limb perfusion is a proven alternative to limb salvage on soft tissue sarcomas, but there are just a few reports about its application on non-melanoma skin cancer. The aim of the article is to describe the outcomes and prove the benefits and effectiveness to avoid limb amputation when using isolated limb perfusion on locally advanced non-melanoma skin cancer. We present clinical, retrospective study as a case series report. The study includes four patients with locally advanced non-melanoma skin cancer in the limb - three cases with squamous cell carcinoma (SCC), and one patient with Merkel cell carcinoma (MCC) who underwent to tumor necrosis factor-alpha (TNFα) and melphalan based isolated perfusion of the limb (TM-ILP). Toxicity, clinical response, and limb salvage were described. Patients were treated in the oncological surgical department in a referral hospital in Mexico. The limb salvage rate was achieved in 75%. All patients had a favorable response to TM-ILP. Complete response of the tumor was noted on two (50%) of the patients (one with histopathological confirmation), the other 50% had a partial response to the TM-ILP. No serious toxicity related to TM-ILP was observed. One patient (25%) developed regional lymph involvement six months after perfusion. Lymphadenectomy was performed, and the patient subsequently has a six-year disease-free survival. In conclusion, TM-ILP could be an effective, reliable, and safe therapy on limb salvage in selected patients with non-melanoma skin cancer who are not adequate surgical candidates.

Intestinal Chloroma.

Chloromas are an atypical cellular infiltrate of immature granulocytic cells that can occur specially in patients with acute myelogenous leukemia (AML), but can be present in nonleukemic patients. Its clinical course will be dependent on its size and location, from asymptomatic to simulating a malignant gastrointestinal neoplasia. Definitive diagnosis is made upon an immunoprofile that is similar to that present in the blasts and precursor cells of acute myeloid leukemia. Endoscopic and CT images are variable being only part of the protocol panel. Treatment is the same as to AML, but surgery and radiation must be used in order to maintain low relapse and better overall survival.

Superior Vena Cava Syndrome Due to Thymic Carcinoma.

The superior vena cava syndrome (SVCS) is caused by a mechanical obstruction; 90% are of neoplasic etiology (lung cancer (LC) and non-Hodgkin lymphoma (NHL) mostly), epithelial neoplasms of the thymus (NET) is a rare cause, thymic carcinoma (TC) causing less than 1% of cases. A 56-year-old male presented with a four-month history of dyspnea, dysphonia, facial and cervical edema and bilateral cervical lymphadenopathy. The tomography showed bilateral, mediastinal, retroperitoneal lymphadenopathies, and obstruction of the internal jugular vein, right apical pulmonary nodules. A superficial adenopathy biopsy was taken, which is not conclusive, so it was decided to take an image-guided biopsy. During its evolution, it presents asymptomatic cardiovascular changes; in extension studies, systemic disease is evidenced. The definitive histopathological study reported thymic carcinoma. Systemic treatment with chemotherapy and radiation therapy was planned.