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Biomedical subjects

J J Pinot

Publications and source records attributed to J J Pinot.

34 records · Page 2Linked to original sources
PubMed1982

[Percutaneous renal angioplasty].

Renal angioplasty was performed in twenty hypertensive patients, and good immediate results were obtained in 18 cases. One unsuccessful result was due to insufficient dilatation of a stenosed renal artery, and another from an accident during dissection of the aortic wall in contact with the renal ostium. Repeated dilatation was necessary in two cases following recurrence of stenosis. A high percentage improvement in the hypertension was obtained: 12 cases recovered and there was marked improvement in 4 other patients, treatment being effective, therefore, in 16 of the 20 patients operated upon. The published literature is reviewed, and emphasis placed on the need for treatment by surgeons experienced in angiography examinations, in close collaboration with the medical and surgical team, the later being ready to intervene if the slightest complication of a surgical nature develops.

Angiography↗
PubMed1982

[Implantation of a pacemaker and superior vena cava anomalies: value of peroperative angiocardiography].

Rare abnormalities of systemic venous return may be encountered during the implantation of endocardiac pacemakers such as persistent left superior vena cava. Our patient, a 66 year old female, had, primary cardiomyopathy with sinus node dysfunction, left bundle branch block and a cardiothoracic ratio of 0,70. After left subclavian venous puncture the catheter seemed to advance down the left border of the cardiac shadow and a false route was suggested? Angiocardiography was performed immediately and showed a double superior caval system and allowed identification of the right ventricular apex. The electrode was positioned via a left SVC, coronary sinus, right atrium, right ventricle trajectory. Control angiocardiography was performed 1 year later and showed both the left SVC and coronary sinus to be still patent. The follow-up period is now 20 months. There have been 13 other reports of implantation using the left SVC; they include 4 short term failures, one late failure at 23 months, and one fatality after 2 months due to massive thrombosis of the coronary sinus. Seven good results were confirmed with follow-up of 3 to 16 months. The use of "tined" ventricular electrodes reduces the risk of secondary electrode displacement.

Aged↗
PubMed1982

Electrophysiological classification of normal and pathological sinus node function.

The sympathetic and parasympathetic neurological cardiac effects were blocked with atropine and propranolol. The intrinsic heart rate (IHR) was determined and rapid atrial pacing (RAP) was carried out before and after administration of the drugs. The primary and secondary postpacing parameters were examined in both circumstances. Normal (n = 31) and pathological (n = 20) cases were differentiated on the basis of the IHR. In the secondary phase (PPC 2-10) after autonomic blockade returned to the basic frequency was of exponential character in the great majority of normal IHR cases. Anomalies may appear in both the primary and secondary phases. They are of different types: one of them concerns the recovery time; another electrophysiological anomaly occurs when there is no return to the predrive normal cycle length after pharmacological neurotomy. In the secondary phase there may appear sinoauricular blocks. They may depend on or appear independently of the effect of the vegetative nervous system. The new test allows a physiopathological classification of normal and pathological sinus node function.

Adult↗
PubMed1980

[Contribution of computed tomography in the staging of abdominal malignant lymphomas (author's transl)].

The authors present their experience of Computed Tomography in the staging of abdominal sub-diaphragmatic extension in 144 cases of malignant lymphoma of the lymph nodes (76 cases of Hodgkin's disease and 68 non-Hodgkin lymphomas). The method provides accurate information on sub-mesocolic lymph node involvement, particularly when hypertrophy is pronounced. It may also be used to assess supra-mesocolic extension of the disease, which is inaccessible to lymphography, and to study the size and, mainly, the structure of the liver and spleen tissues. Easy to perform reliable and non-invasive, the scanner constitutes a new and important means of assessing the extension, course and response to treatment of malignant lymphomas.

Abdominal Neoplasms↗
PubMed1980

[Azygography in pre-operative investigation of cancer of the esophagus : a report on 24 cases (author's transl)].

The value of azygography for detecting extension of cancer of the middle third of the esophagus was assessed in 24 patients. The examination was conducted using the retrograde approach, and results were compared with those obtained by the esophagogram and on tracheobronchial fibroscopy. Compression of the azygos vein is a good indicator of the size of the tumor, which can also be evaluated from esophageal transit examinations. The vein can be invaded or even thrombosed due to severe regional spread but this does not mean that excision of the tumor is impossible. The results of azygography alone, therefore, are not a valid reason for contra-indicating esophagectomy. In case of doubt, tracheobronchial fibroscopy appears to be more suitable for deciding whether the tumor is operable, but azygography can assist in making this decision.

Azygos Vein↗
PubMedDate not supplied

Long-term peripheral stent evaluation using angioscopy.

To evaluate incorporation of peripheral artery stents into the arterial wall, we performed angioscopy on 13 patients fitted with Palmaz endoluminal stents. Of the 15 stents inspected, 5 were in the iliac artery, 9 in the femoral artery and 1 in the popliteal artery. The indications for placement were occlusion in 4 cases and high-grade stenosis in 11 cases including 3 restenosis after balloon dilatation and 1 restenosis after surgery. In 9 cases prosthesis insertion was preceded by laser treatment (Trimedyne Nd:YAG Cardiolase 4000). The decision to use a stent was based on radiologic findings in 3 cases (residual stenoses, dissections) and on angioscopic visualization in 7 cases (2 dissections, 5 flaps). In the remaining cases stent placement was performed electively. The only postoperative treatment was antiplatelet therapy (Ticlopidin). At the time of examination, the mean duration of placement was 6 months (extremes: 2 and 12 months). Inspection was made using Sopro-Meadox angioscope with a 0.75 mm probe mounted on an occlusive balloon for stents in the iliac artery and with a 2.2 mm probe with a working channel and sometimes a deflecting device for stents in the femoral or popliteal artery. Angioscopy was successful in all cases. Angiography was always performed at the same time as endoscopy. Endothelialization was observed in all cases. It appeared as a uniform and smooth whitish layer with a thickness proportional to the duration of placement. Endothelialization was most rapid in femoropopliteal arteries, total coverage being achieved within 4 months. Endothelialization took the longest on medial side of the iliac artery which may remain partially exposed after 12 months.(ABSTRACT TRUNCATED AT 250 WORDS)

Blood Vessel Prosthesis↗