PubMed Health⌕ Search

Biomedical subjects

Manuel Fraile

Publications and source records attributed to Manuel Fraile.

5 recordsLinked to original sources

[Impact of the availability of an external nuclear medicine service in the application of sentinel lymph node biopsy in breast cancer surgery].

INTRODUCTION: To perform sentinel lymph node biopsy (SLNB), nuclear medicine services that have previously undergone a validation phase are required. The aim of the present study was to analyze the possibility of performing this technique with a previously validated, external nuclear medicine service and to study its impact on the indication for radical axillary lymphadenectomy (RAL) and on length of postoperative hospital stay. PATIENTS AND METHODS: We performed a prospective study in a cohort of patients with breast cancer starting from the introduction of SLNB in our center, which was made possible by collaboration with an external nuclear medicine service that performed lymphoscintigraphy and sentinel node detection. Intraoperative detection was performed through a portable probe. The feasibility of the project and its clinical impact were analyzed, taking a reduction in the number of lymphadenectomies and length of hospital stay as endpoints. RESULTS: A total of 196 patients with 201 breast carcinomas were treated. The most frequent interventions were tumorectomy (TC) with SLNB in 124 patients (62%), and TC with SLNB and RAL in 62 patients (31%). Sentinel node visualization on lymphoscintigraphy was achieved in 187/201 carcinomas (93.1%) and sentinel nodes were detected during the intervention in 182/187 carcinomas (97.4%). Sentinel node detection in the internal mammary chain was achieved in 23/201 carcinomas (11.4%). RAL was avoided in 131 of the 201 carcinomas (65%). Days of postoperative hospital stay with or without RAL showed a mean difference of 1.8 days (3.1 vs. 1.3; P < .001). CONCLUSION: SLNB is feasible with the collaboration of an external nuclear medicine service. This technique avoids 65% of RAL and reduces length of postoperative stay by 1.8 days.

Adult↗

[Radio-guided occult lesion localization combined with sentinel node biopsy in women with breast cancer].

INTRODUCTION: The practice of intratumoral radiocolloid injection for sentinel node biopsy (SNB) allows localization of nonpalpable breast tumors in the same surgical intervention, using the technique known as radio-guided occult lesion localization (ROLL). PATIENTS AND METHOD: We present our experience with the combined use of both techniques (SNB and ROLL). A total of 233 patients were retrospectively analyzed: 65 patients underwent ROLL and 168 patients underwent wire-guided localization (control group) as the excision modality. Both groups had comparable pathologic and radiologic features. RESULTS: Complete excision of the lesion was achieved at the first attempt in only 169 patients. There were no significant differences among groups in surgical margin status (margins were adequate in 80% of ROLL patients vs 69.9% of non-ROLL patients) or in maximum specimen diameter (6.85 cm vs 6.52 cm, respectively). CONCLUSION: We conclude that ROLL is an acceptable alternative to wire-guided localization in patients with nonpalpable breast tumors undergoing SNB, leading to easier lesion excision and greater patient comfort.

Breast Neoplasms↗

[Sentinel node biopsy in patients with oral cancer: a pilot study].

BACKGROUND AND OBJECTIVE: Sentinel node (SN) biopsy represents an alternative to full lymph node dissection in the surgical treatment of several malignant tumors. PATIENTS AND METHOD: Prospective study of 32 consecutive patients with clinically node-negative oral cancer comparing SN biopsy results with standard neck dissection. RESULTS: An effective SN localization was achieved in 31 patients (97%) and a complete agreement with neck dissection was observed: 16 were true negative and 15 were true positive. In 11 out of the 15 positive cases, the SN was the only node containing metastasis (73%). CONCLUSION: SN biopsy predicts the subclinical lymph node status in oral cancer patients.

Adult↗

Should patients with deep vein thrombosis alone be treated as those with concomitant asymptomatic pulmonary embolism? A prospective study.

BACKGROUND: The established initial treatment of patients with deep vein thrombosis (DVT) or pulmonary embolism (PE) consists of the administration of subcutaneous, weight adjusted, low-molecular weight heparin (LMWH). However, the use of the same LMWH dosages for patients with either DVT or PE is not supported by data from comparative studies. PATIENTS AND METHODS: 1,000 consecutive patients with acute, proximal DVT were prospectively evaluated. All patients underwent a ventilation-perfusion lung scan on admission, and remained in hospital for at least 7 days. Patients with silent PE received once daily 10,000 to 15,000 IU subcutaneous LMWH dalteparin according to body weight for 7 days, and then vitamin K antagonists. Patients with DVT alone received LMWH in a fixed dose of 10,000 IU once daily for at least 5 days, and then vitamin K antagonists. The rate of both, major bleeding and symptomatic PE episodes during the 7-day study period was evaluated. RESULTS: Thirteen patients (1.3%) developed recurrent PE (1 died) and 16 patients (1.6%) had major bleeding (7 died). Recurrent PE was significantly more common in patients with silent PE (9 of 258 patients, 3.5%) than in those with DVT alone (4 of 742 patients, 0.5%. Odds ratio: 6.5; p <0.001). There were no significant differences in bleeding rate between patients with silent PE and those with DVT alone. However, the use of a fixed 10,000 IU dose in patients with DVT alone led to a significantly lower bleeding rate in patients weighing over 70 kg: 1 of 349 patients (0.3%) as compared to 9 of 393 patients (2.3%) in those weighing less than 70 kg (odds ratio: 0.12; p = 0.018). CONCLUSIONS: Fixed-dose 10,000 IU of LMWH dalteparin once daily proved to be both effective and safe in patients with DVT alone. The observed recurrence rate of 0.5% in these patients compares favourably with the 3.5% rate in patients with silent PE. Furthermore, this fixed-dosage was also safe. Patients weighing over 70 kg had a significant decrease in the rate of major bleeding, and no compensatory increase in the rate of recurrent PE.

Anticoagulants↗