Diagnosis and management of primary chylous ascites.

BACKGROUND: Chylous ascites is the accumulation of triglyceride-rich, free, milk-like peritoneal fluid caused by the presence of intestinal lymph in the abdominal cavity. Primary chylous ascites is uncommon. We present our experience in the diagnosis and treatment of this condition. METHODS: Twelve patients (7 adults, 5 children) affected by primary chylous ascites were studied. Diagnostic investigations included abdominal sonography scans, lymphoscintigraphy, and lymphography combined with computed tomography (CT) with intravenous and intralymphatic lipid-soluble contrast, and laparoscopy. Magnetic resonance imaging was used when lymphography and lymphatic CT were not able to define the dysplasia well, or in the presence of lymphatic dilatation. Surgical treatment included laparoscopy (12/12), drainage of ascites (12/12), the search for and treatment of abdominal and retroperitoneal chylous leaks (12/12), exeresis of lymphodysplastic tissues (12/12), ligation of incompetent lymph vessels (9/12), carbon dioxide laser treatment (cut and welding effects) of the dilated lymph vessels using an operating microscope for magnification (9/12), and chylovenous and lymphovenous microsurgical shunts (7/12). RESULTS: Eight patients did not have a relapse of the ascites, and three patients had a persistence of a small quantity of ascites with no protein imbalance. Postoperative lymphoscintigraphy in seven patients confirmed better lymph flow and less lymph reflux. Median follow-up was 5 years (range, 3 to 7 years). We observed early relapse of chylous ascites in only one case that required a peritoneal-jugular shunt and led to good outcome. CONCLUSION: Primary chylous ascites is closely correlated to lymphatic-lymphonodal dysplasia that does not involve a single visceral district alone. Medical preoperative treatment played an essential role in the global management of this complex pathology. We demonstrated that the use of laparoscopy is remarkably advantageous for confirming diagnosis, for draining the ascites, and for evaluating the extension of the dysplasia. Our diagnostic work-up provided us with an exact diagnostic assessment and allowed us to plan a precise surgical approach.

[Prevention of lymphoedema secondary to the treatment of breast cancer: a case report and proposal for a prevention protocol]. / La prevenzione del linfedema secondario al trattamento del tumore della mammella: dal caso clinico ad una proposta di protocollo di prevenzione.

Secondary lymphoedema of the upper limbs is a fairly frequent complication of breast cancer treatment. It is related to dissection of the axillary lymph nodes, and manifests itself in the form of clinically important lymphostasis, particularly when the dissection is combined with radiotherapy. Despite the fact that the surgical treatment of mammary cancer has become more conservative and, at the same time, radiotheraphy (when necessary) now proves less aggressive and more efficacious, secondary lymphoedema is still reported with incidence rates ranging from 5 to 25%, with an increase of up to 35% and more, when dissection of the axillary lymph nodes is followed by radiotherapy. The aim of this study was to highlight the essential importance of an early diagnosis of secondary lymphoedema, above all in relation to the prevention of this pathology. We report the case of a patient who, at the same time as the axillary lymphnode dissection, underwent a microsurgical operation consisting in the construction of lymphatic-venous shunts in the arm as a preventive measure, because lymphoscintigraphy of the upper limbs, carried out in advance, had revealed a predisposition to the development of lymphedema.

Peripheral lymphedema: new advances in microsurgical treatment and long-term outcome.

We report on the modern surgical management of peripheral lymphedema. An adequate diagnostic route is essential: it has to include patient history and clinical examination, an isotopic lymphography, an accurate study of the venous circulation, and in cases of angiodysplasia, an accurate study of the artery circulation. Based on over 25 years of clinical experience (more than 1,000 patients), the role of derivative and (in those cases where a venous disease is associated with lymphostatic pathology) reconstructive lymphatic microsurgery is particularly underlined, in comparison with conservative medico-physical treatment, to which it is complementary. "Debulking" surgery can be used just in properly selected patients for minor operations with only cosmethic-reductive purposes. With a follow-up even over 15 years after surgery, positive results from lymphatic microsurgery can be achieved in more than 80% of cases, especially in patients at precocious stages.