Related Experiment Video
Updated: Jul 11, 2026
05:19
Modeling Cataract Surgery in Mice
Published on: December 1, 2023
[Preoperative evaluation and cataract surgery].
Fernando Sabia Tallo1, Eduardo Sone Soriano, Lênio Souza Alvarenga
1Departamento de Oftalmologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil. talllo@ig.com.br
Arquivos Brasileiros De Oftalmologia
|October 2, 2007
Summary
Preoperative evaluations, including lab tests and imaging, do not predict adverse events in cataract surgery patients. Routine preoperative testing may not be necessary for preventing complications during this common ophthalmic procedure.
Area of Science:
- Ophthalmology
- Anesthesiology
- Medical Diagnostics
Context:
- Cataract surgery is a common procedure with a low rate of complications.
- Preoperative evaluations are standard practice to assess patient risk.
- The predictive value of routine preoperative tests for adverse events in cataract surgery is debated.
Purpose:
- To determine the relevance of preoperative evaluations in preventing adverse clinical events during cataract surgery.
- To analyze the correlation between preoperative test results and the occurrence of adverse events.
Summary:
- This retrospective study analyzed 1254 patients undergoing cataract surgery.
- Sixteen patients (1.2%) experienced adverse clinical events.
- Altered preoperative examinations (lab tests, ECG, chest X-ray) in 74.6% of patients did not correlate with adverse events (p=0.334).
Impact:
- Findings suggest that routine preoperative laboratory tests, electrocardiograms, and chest X-rays may not be effective in predicting or preventing adverse events in cataract surgery.
- This could lead to a re-evaluation of current preoperative assessment protocols for cataract surgery.
- Potential for cost savings and reduced patient burden by optimizing preoperative evaluations.
Related Concept Videos
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management
Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
01:28Cardiac Catheterization I: Pre-Procedure Overview
Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
01:26Kidney Transplant II: Surgical Procedure
Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...
01:28Urologic Endoscopic Procedure: Cystoscopic Examination
Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
01:26Cardiac Catheterization IV: Nursing Management
Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
01:23Peripheral Artery Disease V: Postoperative Nursing Management
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...