Outcome of Laparoscopic Assisted Percutaneous Microwave Ablation for Exophytic Versus Non-exophytic Hepatocellular Carcinoma.

BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common malignancies and is the third cause of cancer-related death worldwide. Surgery is the optimal treatment for early HCC; however, the majority of cases are not suitable for curative resection at the time of diagnosis. Surgical resection difficulties may be related to size, site, number of tumors, extrahepatic involvement, and patient general condition. Exophytic tumors were considered as relative contraindication for thermal ablation because of the risk of incomplete ablation or major complications as hemorrhage and seeding. AIM OF THIS STUDY: to evaluate the safety and efficacy of microwave ablation (MWA) of exophytic HCC in comparison with non-exophytic HCC. METHODS: Prospective comparative study carried on 30 patients having 30 exophytic (six of those patients had another non-exophytic lesion) and 32 patients having 44 non-exophytic HCC lesions (22 had single lesion, 8 patients had 2 lesions, and 2 patients had 3 lesions) within Milan criteria. All patients were child A or B, they were subjected to full clinical assessment, laboratory investigations, and radiological investigations. Laparoscopic assisted percutaneous MWA was the procedure of choice in our study for all patients either having exophytic or non-exophytic lesions using no-touch wedge technique for exophytic lesions and direct puncture for non-exophytic lesions. RESULTS: Technical success was 100% in both groups, all lesions were completely ablated as confirmed by LIOUS. There were no major complications or perioperative mortality and low incidence of local tumor progression in both exophytic and non-exophytic groups. CONCLUSION: Laparoscopic assisted MWA of exophytic HCC is safe and effective with comparable results to non-exophytic HCC. Exophytic HCC is not contraindication for MWA with proper technique selection.

EVALUATION OF PACKING THE RESIDUAL CAVITY AFTER TOTAL OR PARTIAL CYST RESECTION IN MANAGEMENT OF HEPATIC HYDATID CYSTIC DISEASE.

Hydatid disease is a worldwide zoonosis caused by the larval stage of the echinococcus tapeworm, that is endemic in many parts 6f the world (in Europe, Middle East, Mediterranean, South American and African countries). Hydatid disease is a relevant health problem in underdeveloped areas where veterinary control does not exist. The most frequent location of hydatid cystic lesions is the liver (up to 80% of cases), followed by the lung (about 20% of cases), and with a lower reported incidence in any other organ or tissue in the body. Currently, surgical operation remains the treatment of choice in hydatidosis. Many surgical options can be done for management of the cyst, ranging from unroofing of the cyst, pericystectomy, up to liver resection for the affected liver parenchyma site. The cyst cavity can be managed by different techniques, capitonnage, external drainage, introflexion or omentoplasty. The Omentoplasty (OP) filling technique was the method of choice for filling of the Residual -Cavity (RC). The omentoplasty filling was, done by two procedures Pedicle Omental Pack (POP), and Isolated Omental Pack (IOP); both techniques were applied for the filling of the residual cavity compared to non-filling of the re-sidual cavity after surgery, in our retrospective ,comparative multicenter study. Seventy six patients operated for hydatid cyst between January 2010 and February 2014 were analysed retrospectively. Either with or without filling of the cavity, and either the filling was with pedicle or isolated omentoplasty were used to treat the re-sidual cyst cavity. Patients were categorised into three groups to evaluate complications: without filling of the RC (GA), ouientoplasty filling with Pedicle Omental Pack (GB), and omentoplasty filling with Isolated Omental Pack (GC). The overall mortality rates were 0%. Overall morbidity rates were 57.1% for GA, and 10.3% for GB, and 7.7% for GC respectively. Mean hospital stay was 11.8 days for GA, and 8.1 days for GB, and 8.7 days for GC. The isolated omentoplasty filling technique is a safe management in the filling of the residual cavity after surgery with less operative time and same result as pedicle omentoplasty technique. Because of omentum has a high absorptive capacity and capable to fill the residual cavity, and omentoplasty was recommended (whether with pedicle or isolated omental flap) to manage patients with hydatid cyst of the liver.