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1.
Clin Ophthalmol ; 14: 2229-2236, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32982147

RESUMEN

PURPOSE: To evaluate real-world outcomes of astigmatism management with femtosecond laser arcuate incisions in patients with low corneal astigmatism (<1.0 D) using a novel formula for arcuate incision calculation compared to outcomes after conventional cataract surgery without surgical management of astigmatism. PATIENTS AND METHODS: The Wörtz-Gupta™ Formula (available at www.lricalc.com) was used to calculate femtosecond laser arcuate parameters for 224 patients with <1 D of corneal astigmatism who underwent cataract surgery; lens power was determined with the Barrett Universal II formula. Uncorrected distance visual acuity (UCDVA) and refractive astigmatism measurements were obtained, with an average follow-up of 4 weeks. RESULTS: The average preoperative cylinder was similar (0.61 D in the femtosecond group [n=124] and 0.57 D in the conventional group [n=100] (P>0.05)). More patients had ≤0.5 D of postoperative corneal astigmatism in the femtosecond group (n=110/124, 89%) than in the conventional group (n=71/100, 71%), respectively (P=0.001). The mean absolute postoperative refractive astigmatism was higher in the conventional surgery group than in the femtosecond group (0.43 ± 0.4 D vs 0.26 ± 0.28 D); these differences were statistically significant (P<0.001). The percentage of patients with UCDVA of 20/20 or better vision was higher in the femtosecond group (62%) than the conventional group (48%) (P=0.025). CONCLUSION: Using the femtosecond laser for arcuate incisions in combination with a novel nomogram can provide excellent anatomic and refractive outcomes in patients with lower levels of preoperative astigmatism at the time of cataract surgery.

3.
J Med Pract Manage ; 26(4): 203-8, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21506457

RESUMEN

A new report by the American Medical Association reveals why medical liability claims are so devastating and costly for America's doctors: just over 42% of all physicians and an astonishing 57% of physicians in surgical subspecialties have been sued. Nearly 61% of physicians aged 55 or older have faced the ordeal of a lawsuit. But what if the specter of litigation could be reduced through better, more documented patient communication? One Kentucky ophthalmologist believes patient frustration often is rooted in an expectation of clinical results that does not match actual outcomes. To alleviate the disparity, he uses a standardized informed consent process to ensure patients thoroughly understand the procedure and possible outcomes. This article will explain in detail his three-pronged approach, focused on procedure-specific counseling, education, and documentation.


Asunto(s)
Consentimiento Informado , Responsabilidad Legal , Mala Praxis/economía , American Medical Association , Comunicación , Documentación , Humanos , Oftalmología , Educación del Paciente como Asunto , Satisfacción del Paciente , Estados Unidos
4.
Am Surg ; 70(4): 333-41, 2004 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15098788

RESUMEN

During peritonitis, bacterial adherence is the initial step in a series of events that include mucosal infection, bacterial translocation, organ dysfunction, and death. Adherent Escherichia coli levels increase in response to stress. This study was designed to assess the adherence of E. coli to the cecal mucosa after cecal ligation and puncture (CLP) of increasing severity and to determine whether a relationship exists between adherence of bacteria and mortality. Sham surgery, sterile peritonitis (thioglycollate administration), lethal CLP (18-gauge double-puncture), and nonlethal CLP (23-gauge single-puncture) were performed on Swiss Webster mice and compared with normal mice or before CLP (time 0). Specimens of bowel tissue were harvested, and serial log dilutions of homogenized specimens or bowel contents were plated and cultured on media selective for determination of individual bacterial species. Low levels of E. coli and Proteus mirabilis adhered to the mucosa of unmanipulated controls; however, adherence of both species increased significantly by 18 hours after both lethal and nonlethal CLP. After 18 hours, adherent E. coli levels increased by greater than 5 x 10(6)-fold compared to unmanipulated controls, whereas P. mirabilis levels decreased. After nonlethal CLP, adherent P. mirabilis increased 3 x 10(6)-fold compared to unmanipulated animals, whereas E. coli levels did not increase after 24 hours. Sterile peritonitis had little effect on bacterial adherence. Higher levels of adherent E. coli in the cecum correlate with the increased mortality observed after lethal CLP. Higher levels of adherent P. mirabilis appear to prevent the overgrowth of adherent E. coli following nonlethal CLP. Our data indicate that E. coli plays a key role in mortality from polymicrobial peritonitis and that Proteus may be antagonistic to E. coli in murine peritonitis.


Asunto(s)
Adhesinas de Escherichia coli/análisis , Escherichia coli/patogenicidad , Mucosa Intestinal/microbiología , Peritonitis/mortalidad , Análisis de Varianza , Animales , Adhesión Bacteriana/fisiología , Modelos Animales de Enfermedad , Femenino , Masculino , Ratones , Peritonitis/fisiopatología , Probabilidad , Distribución Aleatoria , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad , Análisis de Supervivencia
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