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Biomedical subjects

D Mazzon

Publications and source records attributed to D Mazzon.

At least 19 recordsLinked to original sources
PubMed2005

Conscious sedation during endoscopic retrograde colangiopancreatography: implementation of SIED-SIAARTI-ANOTE guidelines in Belluno Hospital.

AIM: In this study we describe the results of adoption of local guidelines for conscious sedation (CS) during endoscopic-retrograde-cholangiopancreatography (ERCP) in Belluno Hospital. Local guidelines were created referring to SIED-SIAARTI-ANOTE guidelines for CS in gastrointestinal endoscopy. METHODS: Between January 2002 and February 2004, 300 ERCPs to be performed under CS have been scheduled. According to local guidelines CS was performed by the gastroenterologist assisted by an anesthesia nurse. An anesthesiologist was always on call in the intensive care unit (ICU) for emergencies and could be on the site in less than 5 min. RESULTS: In 278 patients the procedure was performed safely and effectively by the gastroenterologist without any anesthesiological assistance. At follow-up controls patients had either positive or no recollection of the procedure. An anesthesiologist was called in 13 cases to perform deep sedation and in 9 cases to deal with undesired effects (arterial hypertension in 5 patients, 1 episode of bradycardia, 1 of ventricular tachycardia, 1 of atrial fibrillation and 1 of hypoxia). CONCLUSION: In our experience, CS during ERCP can be safely performed autonomously by a gastroenterologist in the majority of cases. Drug prescription protocol and the presence of an anesthesia nurse create ideal conditions for the operator, patient comfort and good results with a low incidence of undesired events and few calls for the anesthesiologist. To allow safe and effective performance of CS, the Department of Anesthesia should promote the in-service training and up dating of gastroenterologists and anesthesia nurses.

Aged↗
PubMed2005

Informed consent to proposed course of medical treatment: recent case law stances.

Developments in ethics, deontology and case law, along with the related increasing demand for patient autonomy in decision-making in health care, led the President of SIAARTI in 2000 to request the Bioethics Commission to revise the documentation on informed content the Study Group on Anesthesia Safety had issued. In response to the request, a multidisciplinary study group was called to examine the ethical, psychological, clinical, legal and medicolegal issues related to informed consent and to draw up a document that would provide for the implementation of the procedure for information and consent proposed in the model of disclosed information and consent for anesthesia approved by the SIAARTI Advisory Board. The model is to be viewed as evidence for an established anesthetist-patient relationship and as a useful record in case of legal or insurance liability litigation. In Italy, failure to obtain consent to medical treatment has assumed growing legal implications. Since 1992, the failure to obtain consent has become part of case law, an exemplary instance of which is the case of a surgeon that was closed in 2002 with the judgment of the Corte di Cassazione (Italian Supreme Court), section I, of 29/05/2002. The judgment found that, in the absence of express implementation of the Oviedo Convention, a physician is always legitimated to performed therapeutic treatment deemed necessary for preserving the life of a patient in his or her care, even in the absence of explicit consent, with the sole but significant exception of unequivocal refusal of treatment.

Anesthesia↗
PubMed2001

[Critical aspects of communication in intensive care].

The poor quality of interpersonal communication is the main reason for the dissatisfaction intensive care patients and their family members often experience. Yet interpersonal communication is considered an important means of conveying information, providing psychological support, and preventing conflicts which can arise when communication is ineffective and information is misunderstood. Good communication is, therefore, an essential part of therapy. This study examines the factors that can hinder communication between clinicians, patients and their family members and the strategies needed to overcome the obstacles to good communication. The results of the study showed that training in the development of relational skills and communicative competence within the intensive care setting should be directed towards the promotion of decision-making processes shared among medical personnel, patients and their family members. In this way, conflict can be reduced and the quality of medical care improved.

Communication↗
PubMed2000

[Guidelines in clinical practice. Bioethical considerations].

The adoption of guidelines in clinical practice raises questions that can be answered against a background in which professional conduct is compared with deontology, law, and the specific sociocultural context and health policies of institutions. In the scientific community, doubts are raised regarding the relationships between the general recommendations laid down in the Guidelines and the specific nature of every clinical condition; between the "duty of adhering" to Guidelines and the doctor's autonomy, as well as between the adoption, discrepancy and non-adoption of Guidelines and the juridical evaluation of medical liability. The information and individual consent of patients and citizens is of particular importance both with regard to clinical procedures and choices of allocation. In the light of these comments, the authors conclude that Guidelines should not be reduced to a form of automated procedure lacking any responsibility, but should represent a correct synthesis between the objective nature of scientific findings, the subjective condition of the patient and the doctor's autonomy. The application of correctly formulated Guidelines shared by the community means acting in such a way that the "right to health" and "freedom of treatment" can be exercised in respect of shared bioethical principles based on beneficence, autonomy and justice.

Bioethics↗
PubMed2000

[Bioethical interpretation of intensive care] .

The bioethical interpretation concerns both those receiving intensive care (IC) and the nature of the treatment itself. The principle of autonomy expressed in the doctor-patient relationship is achieved through the use of informed consent and may also be used in the unique context of patients in IC. Organ-function replacement treatment raises the ethical question of the definition and management of the limit to treatment. The appropriateness of IC can be defined by clinical and ethical criteria and aims to avoid inappropriately excessive treatment. In order to improve the decision-making process involving bioethical questions, the authors outline a number of working approaches: the use of informed consent even in IC, the possible role of Advanced Directives in IC, epidemiological studies, operator training.

Bioethics↗
PubMed1998

Upper airway obstruction by retropharyngeal hematoma after cervical spine trauma: report of a case treated with percutaneous dilational tracheostomy.

The authors report the case of a patient affected by a cervical spine trauma who developed upper airway obstruction as a result of a retropharyngeal hematoma. An endotracheal intubation with a small-diameter tube was performed, but ventilation and oxygenation were not adequate. An early Percutaneous Dilational Tracheostomy with the Ciaglia technique was then performed. The risk of upper airway obstruction by retropharyngeal hematoma after cervical spine trauma is discussed in this article, as are the feasibility and benefits of using Percutaneous Dilational Tracheostomy in emergency cases of upper airway obstruction.

Aged↗
PubMed1996

Percutaneous dilational tracheostomy after anterior cervical spine fixation.

After spinal cord injury, quadriplegic patients generally require tracheostomy for ventilatory support and airway clearance. Early tracheostomy has several advantages over translaryngeal intubation, but in patients who undergo anterior surgical fixation of the spine, it is often delayed until after recovery of the surgical wound. We report the case of a quadriplegic patient who underwent a successful percutaneous dilational tracheostomy with the Ciaglia technique after surgical fixation of the spine. The percutaneous dilational technique minimizes the injury to the adjacent structures of the neck and the risk of stomal infection. Therefore, it should be considered the technique of choice when an early tracheostomy is indicated for quadriplegic patients who have undergone anterior surgical fixation of the cervical spine.

Adult↗
PubMed1994

[Energy expenditure during a pregnancy complicated by post-traumatic coma: analysis of 2 clinical cases].

OBJECTIVE: To analyze the measured resting energy expenditure, the clinical evolution and the nutritional therapy of two pregnant women complicated by post-traumatic coma and sepsis. DESIGN: Clinical study. SETTING: The ICU of Neurosurgery in Regional Hospital in Italy. PATIENTS: Two subjects with head trauma due to a motor vehicle accident. METHOD: The resting energy expenditure was measured (M-REE) by indirect calorimetry by oxygen consumption (VO2) and carbon dioxide production (VCO2). Values were controlled in patients with a hemodynamic stability every 4 hours. Predicted REE (P-REE) was calculated according to the Harris-Benedict formula. A total parenteral nutrition (1.2-1.3 x M-REE) composed of dextrose (70-80% of total caloric amount) and fat (20-30%) was infused in both the subjects. As an average 12-15 g of nitrogen were infused daily. RESULTS: VO2 and VCO2 increased during the study (case 1: from 225 +/- 33 to 325 +/- 35 ml/min; p < 0.02; LR: p < 0.0001; VCO2: from 170 +/- 24 to 289 +/- 23 ml/min; p < 0.0001. Case 2: VO2: from 239 +/- 22 to 315 +/- 35 ml/min; p < 0.05; LR: p < 0.01. VCO2 from 177 +/- 31 to 247 +/- 22 ml/min; p < 0.05; LR: p < 0.001). M-REE/kg increased with statistical significance during the study (case 1: from 23.6 +/- 4.1 to 34.1 +/- 4.3, p < 0.05, LR: p < 0.005; case 2: from 23.7 +/- 5.8 to 33.4 +/- 7.7, p < 0.05, LR: p < 0.05). A physiological variation in oxidative capacity on nutritional substrates was reported throughout the study. CONCLUSION: Sepsis and miscarriages following trauma seem to be the cause in an increase of the energy expenditure rather than pregnancy itself. However our observations must be viewed with caution because they are based on a small number of patients.

Abortion, Spontaneous↗
PubMed1992

Case report acute respiratory failure after posterior cranial fossa surgery: report of two cases with unusual etiology.

Acute respiratory failure (ARF) occurred in two patients who had normal preoperative findings and intraoperative courses, early after posterior cranial fossa (PCF) surgery. In both instances, the postoperative pulmonary failure appeared to be due to an unknown pulmonary cancer, revealed by autopsy. The diagnosis of an asymptomatic pulmonary malignancy might be considered in the presence of ARF of unclear etiology in patients who undergo PCF surgery for removal of a brain tumor.

Journal Article↗
PubMed1992

[Treatment and outcome of prospective organ donors in neurosurgical intensive therapy. Analysis of a 3-year period].

Strict guidelines for selection, monitoring and treatment of Potential Organ Donors (POD) in Neurosurgical Intensive Care Units (ICUs) are mandatory since patients with Acute Brain Injuries (ABI) are more frequently admitted on these specialized ICUs. We report the guidelines accepted in the Neurosurgical ICU of Treviso City Hospital (TVH) and the results obtained in the last three years (1988-1990). All patients with unfavourable neurological outcome were considered POD if absolute or relative contraindications to organ procurement were absent. They were treated with a multisystemic approach, according to standard protocols, including: ECG monitoring, water and electrolyte balance restoration, pharmacological cardiocirculatory support, prophylaxis and treatment of infections, control of hormonal disturbances. Our data demonstrate an increase of POD from TVH due to the centralization of patients with ABI in the Neurosurgical ICU and show an increase of the rate of POD from Neurosurgical ICU vs General ICU of TVH. The increase of POD in the Neurosurgical ICUs involves medical, legal, organizing and psychological problems, related to this clinical condition. The attention to severe protocols, that must be periodically reviewed, makes more easy the management of POD and ameliorates the outcome of these patients.

Critical Care↗
PubMed1989

[Total parenteral nutrition in packages. Methods of application in a general surgery department].

In the period June 1987-March 1988, 80 patients classifiable according to ASPEN criteria were submitted to Total Parenteral Nutrition (TPN) using a single package nutrient mixing technique. The problems relating to the compatibility and stability of the solution are analysed and a protocol is proposed for the preparation of packages and the management of the central venous catheter compatible with the needs of a general surgery department. Personal experience has enabled us to observe the undoubted advantages of this technique: reduction of the time necessary for nursing the TPN patient, greater reliability in controlling speed of infusion and infectious complications, greater comfort for the patient.

Drug Packaging↗
PubMed1989

[Autotransfusion technic in surgery of craniostenoses in children].

The extensive blood loss during the surgical correction of craniosynostosis in infancy needs usually homologous transfusion. The Authors report a program of preoperative and intraoperative hemodilution and their experience in six infants, the very first in pediatric neurosurgery. Prevention of homologous blood transfusion achieved in 4 out 6 cases can be considered a success that could be further improved introducing minor changes in our protocol.

Blood Transfusion, Autologous↗