María José Jiménez

Utilidad de la criobiopsia en el diagnóstico de la enfermedad pulmonar intersticial difusa : análisis de rentabilidad y coste

BACKGROUND Assessment of patients with suspected interstitial lung disease (ILD) includes surgical lung biopsy (SLB) when clinical and radiological data are inconclusive. However, cryobiopsy is acquiring an important role in the ILD diagnostic process. The objective of this study was to evaluate the diagnostic yield, safety and economic costs of the systematic use of cryobiopsy in the assessment of patients with suspected ILD. METHODS This was a retrospective observational study of patients who had undergone transbronchial cryobiopsy for evaluation of ILD from January 2011 to January 2014. The procedures were performed with a video bronchoscope using a cryoprobe for the collection of lung parenchyma specimens, which were analyzed by pathologists. Diagnostic yield, complications and economic costs of this technique were analyzed. RESULTS Criobiopsy specimens from a total of 33 patients were included. A specific diagnosis was obtained in 26, producing a diagnostic yield of 79%. In 5 patients, SLB was required for a histopathological confirmation of disease, but the procedure could not be performed in 4, due to severe comorbidities. The most frequent complications were pneumothorax (12%) and gradei (9%) or gradeii (21%) bleeding. There were no life-threatening complications. The systematic use of cryobiopsy saved up to €59,846. CONCLUSION Cryobiopsy is a safe and potentially useful technique in the diagnostic assessment of patients with ILD. Furthermore, the systematic use of cryobiopsy has an important economic impact.

Apnoeic oxygenation on one-lung ventilation in functionally impaired patients during sleeve lobectomy

We describe a useful salvage method for hypoxaemia during one-lung ventilation (OLV) in functionally impaired patients during a sleeve bronchial reconstruction. When dependent-lung OLV strategies for hypoxaemia fail during bronchial anastomosis (increasing the oxygen administration to fraction of inspired oxygen (FiO(2)) 1 and positive end-expiratory pressure (PEEP), recruitment strategy and perfusion modulation), a very simple and efficient method for oxygen administration to the non-dependent lung can be easily employed. Oxygen flow of 5-10 l min(-1) administered by a paediatric intra-field catheter placed in the distal bronchi during bronchial anastomosis of the spared lobe(s), following the principles of apnoeic (hyper)oxygenated ventilation, successfully improves oxygenation without significant impairment of the operation field.

Cirugía de preservación pulmonar mediante reconstrucciones broncoangioplásticas extendidas

OBJECTIVE To determine the morbidity, mortality and survival of sleeve lobectomy procedures compared to simple broncho-angioplasty procedures. PATIENTS AND METHODS A total of 535 patients diagnosed with bronchogenic cancer between September 2005 and May 2010 who fulfilled the criteria of clinical, oncological and functional operability were treated in our unit. Unresectable central tumours (n=95) using simple lobectomy were scheduled for broncho-angioplasty techniques and a pneumonectomy in those where this was impossible. RESULTS A total of 58 (11%) were performed, 46 simple broncho-angioplastic lobectomies (SBAL) and 12 extended broncho-angioplastic lobectomies (EBAL). In the SBAL group there were 32 bronchial (70%) and 7 (15%) bronchovascular reconstructions and only vascular (15%). In the EBAL group, 8 (66.7%) were bronchial and 4 (33.3%) were bronchovascular reconstructions. The most common type of resection was the right upper lobe (RUL)+segment 6 in five (41%) cases, followed by RUL+middle lobe. There were 2 (3%) deaths in the SBAL group. There was 34% morbidity in the SBAL and 33% in the EBAL group (P>0.05). Fifteen patients received neoadjuvant chemo-radiotherapy treatment, due to histologically confirmed cN2; however, the number of complications was not significantly higher. No risk factors were detected in any variable studied that would affect EBAL compared to the SBAL group (P>0.05). The patients in both groups with a higher morbidity were pN1, located in the left upper lobe and associated with vascular reconstruction (P<0.05). The overall survival at 5 years was 61.6%, SBAL (61%) and EBAL (68.9%) with no differences between groups (P>0.05). CONCLUSIONS EBALs are technically more demanding procedures, but do not increase morbidity or mortality compared to simple broncho-angioplasty techniques, and with a similar survival.

Nuestra experiencia en el tratamiento de las lesiones obstructivas de la vía aérea principal mediante fotorresección con láser Yag-Nd

We performed 164 laser resections with a neodymiumyttrium-aluminum-garnet (Nd-Yag) laser in 116 patients between January 1992 and December 1997. Seventy-eight patients had malignant neoplasms, 5 had neoplasms of intermediate malignancy and 33 had inflammatory tracheal lesions. Eighteen resections were emergency procedures. All resections were performed with the patient under general anesthesia and preferably breathing spontaneously. Immediate results varied according to the nature and location of the lesion. Treatment was palliative for tumors showing intraluminal proliferation, providing successful reopening of the airway as shown endoscopically in 70% of patients. Mean survival of the 44 patients with malignant lesions who could be followed was 29 weeks, with a median of 15.19 (range, 1-120). The tracheas of patients with inflammatory stenosis were reopened rapidly and emergency tracheostomy was avoided in all cases. One patient with malignant tracheal tumors died during the procedure due to asphyxia related to tracheal hemorrhage.