PubMed Health⌕ Search

Biomedical subjects

F González Miranda

Publications and source records attributed to F González Miranda.

At least 19 recordsLinked to original sources
PubMed2001

[General anesthesia with remifentanil in two cases of emergency cesarean section].

Remifentanil is a synthetic opiate with evident advantages for various anesthetic techniques, enhancing quality of anesthesia. Indications are increasingly well-defined. Remifentanil may be used in obstetric analgesia-anesthesia thanks to advantages demonstrated in patients with heart disease (cardiac and non-cardiac anesthesia) and in those requiring neuroanesthesia. Remifentanil is known to cross the placenta rapidly and to be rapidly metabolized and redistributed to both mother and fetus. Based on this, and on pharmacokinetic and pharmacodynamic studies in children, we judged remifentanil to be indicated for use in two patients undergoing emergency cesarean section, for whom hemodynamic stability and immediate postoperative assessment were basic requirements. The first case involved a woman 40 weeks pregnant with a history of mitral valve prolapse and an episode of acute pulmonary edema in the 28th week, who presented with ruptured membrane and the fetus in sacroposterior breech presentation without subsequent progression of labor. The second involved a woman 40-weeks pregnant with a diagnosis of Hunt-Hess grade II subarachnoid hemorrhage who had gone into labor. Outcome was satisfactory in both cases, with no complications potentially affecting the status of either mother or child. No infant respiratory insufficiency occurred and Apgar scores were favorable. We consider remifentanil to be safe and effective for general anesthesia for emergency cesarean delivery in patients with cardiac and/or neurological risk factors.

Adult↗
PubMed1999

[Ketamine].

Ketamine is an intravenous drug with special properties that make it the only agent that presently serves as anesthetic, sedative, amnesiac and analgesic. Although it is sometimes forgotten, ketamine is still considered a viable drug. Water soluble, stable and non-irritant when administered intravenously, ketamine has rapid onset after intravenous injection and provides acceptable anesthesia when administered in continuous infusion. There properties make ketamine useful for total intravenous anesthesia. Both propofol and midazolam are effective in reducing ketamine's adverse side effects. Administered in children by oral, nasal, rectal and intramuscular routes, ketamine allows for gentle anesthetic induction. It can also serve as an adjuvant in regional anesthesia to supplement analgesia. In adults ketamine is most often used for major surgery, particularly in the elderly or in high risk patients who are in shock, severely dehydrated or hemodynamically unstable, or in obstetric patients with hypovolemia or hemorrhage. It is probably the anesthetic of choice for patients with hyperreactive airways. Ketamine's strong analgesic effect at subanesthetic doses allows it to be used as an analgesic during postoperative intensive care or as an analgesic-plus-sedative for patients receiving mechanical ventilation. Interest in using ketamine at low doses for cancer and non-cancer patients with chronic pain has grown recently.

Adolescent↗
PubMed1995

[Patient with tricuspid atresia undergoing orthopedic surgery: anesthetic considerations].

We describe a 52-year-old patient with rheumatoid arthritis, interventricular communication and pulmonary stenosis. After an accidental fall she was scheduled for total hip replacement. The main objective of anesthetic management was to preserve pulmonary blood circulation at arterial pressures that would assure adequate tissue perfusion. Other objectives were to maintain hydration to prevent decreases in hematocrit levels, avoid systemic embolization and allow for antibiotic prophylaxis.

Accidental Falls↗
PubMedDate not supplied

[Preoperative testing routines for healthy, asymptomatic patients in the Canary Islands (Spain)].

OBJECTIVES: To analyze patterns of routine testing before elective/scheduled surgery in healthy/asymptomatic patients classified as ASA I or II according to the American Society of Anesthesiologists. MATERIAL AND METHOD: A questionnaire on the organization of preoperative testing was completed by anesthesiologists at five public hospitals in the Canary Islands. The questionnaire emphasized the most commonly ordered screening procedures, such as chest X-rays, electrocardiograms, laboratory tests and spirometry. RESULTS: Red cell counts were most frequently requested (for 86% of the patients), followed by platelet counts (80%) and blood chemistry (75%) and coagulation studies (72%). Least requested were urine tests and spirometry. The frequencies of electrocardiogram and chest X-ray requests fell between the two extremes, with patient age and the presence of certain indications seeming to affect whether those tests would be ordered or not. The need for such screening was perceived to increase for patients over 40 years of age. The ordering of preoperative tests varied from hospital to hospital and among anesthesiologists at a single site in spite of established protocols. CONCLUSIONS: Hospitals and individual anesthesiologists differ considerably in how they request preoperative tests. The variations can not be explained solely by differing patient needs given that respondents were contemplating only healthy/asymptomatic individuals undergoing relatively simple procedures.

Anesthesiology↗
PubMedDate not supplied

Submammary median sternotomy.

A vertical skin incision is used as routine approach for sternotomy. The resulting scar is often disappointing and the top is visible and unpleasant, especially for young women. In 35 women ranging from 10 to 48 years (mean 29.2 years), median sternotomy was performed via a submammary skin incision. In all cases an open heart surgical procedure was performed. Adequate exposure of the heart was achieved in every case and there were no technical problems related to this approach, no hospital mortality or major complications. The cosmetic result is excellent and this approach is certainly justified in open heart surgery for young women.

Adult↗