Angela Palmisano

Hepatectomy for Stage B and Stage C Hepatocellular Carcinoma in the Barcelona Clinic Liver Cancer Classification: Results of a Prospective Analysis

HYPOTHESIS Using an algorithm for selection of patients with hepatocellular carcinoma (HCC) for surgery, Barcelona Clinic Liver Cancer (BCLC) classification stage B and stage C disease is not a contraindication. DESIGN Prospective cohort study. SETTING University tertiary care hospital. PATIENTS Among 163 consecutive patients with HCC, 120 (73.6%) underwent surgery; 113 of 120 (94.2%) underwent resection. Of 113 patients, 61 (54.0%) had BCLC stage 0 or A disease, 24 (21.2%) had stage B disease, and 28 (24.8%) had stage C disease. INTERVENTIONS Surgical strategy was based on the relationship of the tumor to the intrahepatic vascular structures on intraoperative ultrasonography. MAIN OUTCOME MEASURES Mortality, morbidity, rate of cut edge local recurrences, and long-term outcome were evaluated. P < .05 was considered statistically significant. RESULTS Hospital mortality was 0.9%. The overall morbidity was 27.4%, and major morbidity was 3.5%. After a median follow-up of 24 months (range, 1-65 months), there was no cut edge recurrence. For patients with BCLC stages 0 or A, B, and C disease, the 3-year overall survival rates were 81%, 67%, and 74%, respectively (P =.24); the 3-year disease-free survival rates were 30%, 35%, and 15%, respectively (P =.85); and the 3-year hepatic disease-free survival rates were 39%, 44%, and 17%, respectively (P =.79). CONCLUSIONS Patients with BCLC stage B and stage C HCC can tolerate hepatic resection with low mortality, acceptable morbidity, and survival benefits if resection is performed under strict intraoperative ultrasonographic guidance. These results should prompt revision of the BCLC recommendations.

One-stage ultrasonographically guided hepatectomy for multiple bilobar colorectal metastases: A feasible and effective alternative to the 2-stage approach

BACKGROUND Two-stage hepatectomy with or without portal vein embolization allows treatment of multiple bilobar metastases, thereby expanding operative indications for these patients. Two operations are needed, however, and some patients are not able to complete the treatment strategy because of disease progression. Using experience gained from our policy of ultrasonographically guided resection, we explored the safety and effectiveness of 1-stage operative procedures in patients otherwise recommended for the 2-stage approach. METHODS A total of 29 patients with multiple (>or=4) bilobar colorectal liver metastases (CLM) were selected from 100 consecutive patients submitted to surgical resection. The total number of preoperative CLM was 163 (median, 5; range, 2-20). The operative strategy was based on tumor-vessel relationships at intraoperative ultrasonography (IOUS) and on findings at color Doppler IOUS. RESULTS There was no in-hospital mortality. Tumor removal was feasible with 1-stage operative procedures in all but 3 patients who underwent laparotomy. The overall morbidity rate was 23% (6/26); none of the patients required reoperation. Major morbidity occurred in 1 patient (4%). Blood transfusions were administered in 4 patients (15%). After a mean follow-up of 17 months (median, 14; range, 6-54), 3 patients had died from systemic recurrence, 12 patients were alive without disease, and 11 were alive with disease. No local recurrences were observed at the resection margin. CONCLUSION IOUS-guided resection based on strict criteria allows a 1-stage operative treatment in selected patients with multiple bilobar CLM. This strategy decreases the need for a two-stage hepatectomy, thereby avoiding the disadvantages of a 2-stage approach.

Contrast-enhanced intraoperative ultrasonography during hepatectomies for colorectal cancer liver metastases

Preliminary reports showed that contrast-enhanced intraoperative ultrasonography (CEIOUS) provides information on primary or metastatic tumors of the liver that is not obtainable with conventional intraoperative ultrasonography (IOUS). This study validates the impact of CEIOUS, focusing on resective surgery for colorectal cancer (CRC) liver metastases. Twenty-four consecutive patients underwent liver resection using IOUS and CEIOUS for CRC liver metastases. CEIOUS was accomplished with intravenous injection of 4.8 mL of sulphur-hexafluoride microbubbles. CEIOUS found lesions missed at preoperative imaging and at IOUS in four patients and confirmed all of the new findings of IOUS in four patients. In addition, CEIOUS helped to define the tumor margins of the main lesion in 29% of patients with CRC liver metastases. No adverse effects were observed in relation with CEIOUS. In conclusion, CEIOUS improves IOUS accuracy with a significant impact on surgical strategy and radicality in patients who undergo surgery for CRC liver metastases.

Ultrasonographically guided surgical approach to liver tumours involving the hepatic veins close to the caval confluence

Intraoperative ultrasonography (IOUS) may allow a more conservative procedure in patients with liver tumours involving a hepatic vein at the caval confluence. The aim of this study was to determine whether IOUS and colour Doppler IOUS might reduce the rate of major hepatectomy and vascular reconstruction in patients with such tumours.

Contrast-Enhanced Intraoperative Ultrasonography During Surgery for Hepatocellular Carcinoma in Liver Cirrhosis: Is It Useful or Useless? A Prospective Cohort Study of Our Experience

BackgroundPreliminary results showed that contrast-enhanced intraoperative ultrasonography (CEIOUS) could provide information not obtainable with conventional IOUS during surgery for hepatocellular carcinoma (HCC). The aim of the study was to prospectively validate the role of CEIOUS on the basis of a larger experience and to establish a new classification that takes into account its findings.MethodsEighty-seven consecutive patients underwent hepatecomies for HCC. Those patients with new lesions at IOUS underwent CEIOUS: for that patients received intravenously 4.8 mL sulphurhexafluoride microbubbles. Pattern of enhancement was classified in 4 categories: A1 (full enhancement in the arterial phase and wash-out in the delayed phases), A2 (intralesional signs of neovascularization during all phases), A3 (no nodular enhancement but detectability during the liver enhancement), and B (undetectability during the liver enhancement). Resection was recommended for A1-3 nodules and no treatment for B nodules.ResultsTwenty-nine patients (33%) had 59 new lesions at IOUS and underwent CEIOUS. Twenty-seven nodules showed a B pattern at CEIOUS and were not removed; 32 nodules were classified as A1 in 5 patients, A2 in 11 patients, and A3 in 16 patients. The nodules were removed, and by histology, five A1, nine A2, and six A3 nodules were confirmed to be HCC. CEIOUS modified the operative decision making in 79% of these patients.ConclusionsCEIOUS is useful during surgery for HCC; it complements the accuracy of IOUS and affects the radicalness of the surgical. Specificity of CEIOUS has to be further improved, although intrinsic drawbacks exist in the diagnostic criterion of tumor vascularity.

Anatomical segmental and subsegmental resection of the liver for hepatocellular carcinoma: a new approach by means of ultrasound-guided vessel compression.

Background:Anatomic resection is considered the gold standard approach for liver resection in patients with hepatocellular carcinoma. The use of intraoperative ultrasound (IOUS) as guidance is indispensable in this sense but methods available up to now were rather complex and for that reason of limited use. We herein describe a novel technique for the demarcation of the resection area by means of IOUS-guided finger compression to systematically accomplish anatomic segmental and subsegmental resections. Methods:Thirty-three patients met the eligibility criteria. This technique consisted in the demarcation of the resection area by IOUS-guided finger compression of the vascular pedicle feeding the tumor at the level closest to the tumor but oncologically suitable. Median age was 65 years (range, 36–81). There were 25 men and 8 women. Median tumor number was 1 (range, 1–2); median tumor size was 2 cm (range, 1–10). Twenty-five (76%) patients had cirrhosis or chronic hepatitis, and 8 (24%) had steatosis (ClinicalTrials.Gov ID: NCT00829335). Results:Procedure resulted feasible in all eligible patients, and demarcation area was obtained in all patients within 1 minute of bimanual IOUS-guided compression. There was no mortality or major morbidity: only 7 (21%) patients experienced minor morbidity. No blood transfusions were administered. Conclusions:Systematic segmentectomy and subsegmentectomy by IOUS-guided finger compression is a feasible, safe, and effective technique, which could be considered as a simpler alternative to those up to now proposed.

Systematic extended right posterior sectionectomy: a safe and effective alternative to right hepatectomy.

Background:A surgical approach based on ultrasound-guided hepatectomy might minimize the need for major resection, whose rates of morbidity and mortality are not negligible. Right hepatectomy (RH) is traditionally performed in cases of vascular invasion of the right hepatic vein with multiple tumors in the right posterior section, and/or of the right posterior portal branch (P6-7) with tumor in contact with right anterior portal branch (P5-8). We herein describe an alternative approach to RH consisting in ultrasound-guided systematic extended right posterior hepatic sectionectomy (SERPS). Methods:Among 207 consecutive patients who underwent hepatectomies, 21 (10%) underwent SERPS. Median age was 67 years (range, 48–79). There were 13 men and 8 women. Ten (48%) patients had hepatocellular carcinoma; 11 (52%) had colorectal liver metastases. Median tumor number was 2 (range, 1–15); median tumor size was 4.5 cm (range, 2.5–20). Ten (48%) patients had cirrhosis, 8 (38%) had steatosis, and 3 (16%) had normal liver. Surgical strategy was based on tumor-vessels relationship at intraoperative ultrasonography (IOUS) and on findings at color-Doppler IOUS. Results:In-hospital and 90-days mortality were nil. Major and minor morbidity occurred in 3 (14%) and 2 (9.5%) patients, respectively. No patients were reoperated because of complications. Blood transfusions were given to 2 (9.5%) patients. After a median follow-up of 21 months, no local recurrence was observed. Conclusions:IOUS-guided SERPS is feasible, safe, and effective. It should be applied whenever possible as alternative resection to RH to maximize liver parenchymal sparing.

A new systematic small for size resection for liver tumors invading the middle hepatic vein at its caval confluence: mini-mesohepatectomy.

Objective:We describe a new ultrasound guided conservative procedure for patients with liver tumors invading the middle hepatic vein (MHV) at its caval confluence. Summary Background Data:Morbidity and mortality for major hepatectomies are not negligible. However, when tumors invade the MHV at the caval confluence, major surgery is usually recommended. Methods:Patients included in this study were those with tumors invading the MHV at its hepato-caval confluence (within 4 cm). Minimum follow-up was established at 6-months from surgery. Among 284 consecutive hepatectomies, 17 (6%) met the inclusion criteria. Partial sparing of segments 4, 5, and 8 was established intraoperatively, based on color-Doppler IOUS findings (NCT00600522 on ClinicalTrials.gov). Results:In all the 17 patients at least one of the color-Doppler IOUS criteria was disclosed, and limited resections of just segments 4sup and 8 were always feasible. The MHV tract involved was always resected. Seven patients had single tumor removed and 10 multiple: total number of resected tumors was 58 (median: 2; range: 1–18). There were no postoperative mortality and major morbidity. Overall morbidity occurred in 3 (18%) patients. Median blood loss was 250 (range: 50–1000). One patient (6%) received blood transfusion. No local recurrences were observed (median follow-up: 26 months). Conclusions:IOUS assistance systematically allows conservative resection of liver tumor invading the MHV at caval confluence. This drastically limits the need for larger resections, and further broadens the role of IOUS in optimizing the surgical strategy.

Ultrasound-guided interventional procedures of the liver during laparoscopy: Technical considerations

Background: The increased application of laparoscopy to oncological cases has also expanded the applications of laparoscopic ultrasound (LUS). LUS-guided interventional procedures are often used for the staging of neoplastic disease. However, considerable expertise is required to perform the US-guided maneuvers. Methods: Based on our 7-year experience with laparoscopic ultrasound, we discuss a number of technical and practical aspects related to the performance of interventional procedures during LUS of the liver. Results: We performed 146 laparoscopic ultrasound exams in patients with neoplastic diseases. In all, 244 liver lesions were biopsied and 151 needle placements were made to perform radiofrequency ablation or ethanol injection. We discuss our choice of laparoscopic equipment and type of needle required (whether for biopsies or for interventional procedures). We also describe the technical characteristics of ultrasound probes and equipment, the correct approach to the patient, and the method that we employ to identify and then puncture the target lesion. Conclusion: The proper technique for interventional procedures during laparoscopic ultrasound can be mastered relatively quickly by a surgeon who is already familiar with traditional ultrasound techniques.

Indication and contraindication for hepatic resection for liver tumors without fine‐needle biopsy: Validation and extension of an Eastern approach in a Western community hospital

Fine‐needle biopsy (FNB) is associated with problems, such as tumor seeding, which are not negligible. The aim of this study was to validate prospectively the accuracy of our diagnostic work‐up without FNB, not just to address but also to rule out from a surgical program patients with focal liver lesions (FLLs). From September 2001 to July 2003, 89 patients were seen at an outpatient clinic for FLLs. Nine patients were excluded because of previous FNB and 18 were excluded because carrier of advanced disease. Sixty‐two patients with 101 FLLs were included. Preoperative diagnoses were established by means of clinical histories, serum tumor marker levels, ultrasonography (US), and spiral computed tomography (CT). Other imaging modalities were carried out when it was considered necessary. Forty‐eight patients underwent surgery, with histological confirmation of the preoperative diagnosis. The remaining 14 patients underwent a close follow‐up. The preoperative diagnoses of 47 of the 48 patients who underwent surgery were confirmed (97.9%). All of the 14 patients ruled out for surgical treatment did not show FLL progression at 6–24 months of follow‐up. Of the 9 patients who had FNB previously in other centers, 2 had a wrong histological diagnosis. In view of these results, a diagnostic work‐up without FNB seems adequate either to include or to exclude patients with potentially resectable FLL from the surgical program and once more highlight the fact that the use of FNB should be drastically limited. (Liver Transpl 2004;10:S30–S33.)