Amanda Horn - Academia.edu (original) (raw)
Papers by Amanda Horn
Emergency Medicine Clinics of North America, May 1, 2011
Overview and Epidemiology Appendicitis is the most common cause of abdominal pain requiring surgi... more Overview and Epidemiology Appendicitis is the most common cause of abdominal pain requiring surgical intervention. The lifetime risk of appendicitis is approximately 7%, with a current incidence of 86 per 100,000 patients per year. 1 Rates of appendicitis are highest in the second decade of life, with a slightly higher incidence of appendicitis occurring in males (ratio 1.4:1). 2 Appendiceal perforation rates also vary; patients at extremes of age are more likely to have perforated at their time of diagnosis. 1 Early diagnosis of appendicitis is paramount, because patient morbidity is increased once appendicitis becomes complicated by abscess and perforation. Pathophysiology The appendix is located on the posteromedial surface of the cecum, approximately 3 cm from the ileocecal valve. Its length varies from 8 to 13 cm, and its anatomic location within the abdomen is variable. 3 Although the appendix has no known function, recent studies propose that it acts as a reservoir for commensal bacteria in the colon. 4 Appendicitis occurs when the appendiceal lumen becomes obstructed by fecaliths, adhesions, enlarged lymph nodes, foreign bodies, parasites, or, less commonly, tumors. 5,6 Once obstruction occurs, the intraluminal pressure within the appendix begins to increase as mucosal secretions accumulate, leading to appendiceal distension. This distension in turn stimulates visceral afferent nerves that enter the spinal cord at the T8 to T10 level, causing dull epigastric or periumbilical pain. As obstruction continues, pressures within the appendix impede venous and lymphatic drainage, allowing bacteria and neutrophils to invade the walls of the appendix. More localized
The Journal of emergency medicine, Aug 1, 2016
Cambridge University Press eBooks, Apr 23, 2013
The Journal of emergency medicine, Mar 1, 2014
Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, o... more Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. Objective: To review multiple techniques for managing a shoulder dystocia in the ED. Discussion: We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Conclusions: Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.
Arlene Frank is now at Health Enhancement Services, Inc.,
The Journal of Emergency Medicine, 2014
Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, o... more Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. Objective: To review multiple techniques for managing a shoulder dystocia in the ED. Discussion: We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Conclusions: Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.
The Journal of Emergency Medicine, 2016
The Journal of emergency medicine, 2011
Emergency medicine clinics of North America, 2011
Appendicitis, diverticulitis, and colitis are common gastrointestinal conditions presenting to th... more Appendicitis, diverticulitis, and colitis are common gastrointestinal conditions presenting to the emergency department (ED). Although it is a common condition, the diagnosis of appendicitis remains challenging, and the approach to this disease continues to evolve. The diagnostic approach to diverticulitis is more straightforward, and treatment and the decision whether to hospitalize varies with disease severity. Colitis may be caused by inflammatory bowel disease, ischemia, or infection. This article details an ED-based approach to each of these disease entities.
Behavioral Emergencies for the Emergency Physician, 2013
Behavioral Emergencies for the Emergency Physician, 2013
Psychotherapy: Theory, Research, Practice, Training, 2004
and Clinic: Michael Thase, MD (principal investigator), Dennis Daley, MSW (coprincipal investigat... more and Clinic: Michael Thase, MD (principal investigator), Dennis Daley, MSW (coprincipal investigator), Ishan M. Salloum, MD (co-principal investigator), and Judy Lis, MSN (project director). The training unit heads of the Cognitive Therapy Training Unit were
The Journal of Emergency Medicine, 2011
American Journal on Addictions, 1999
This paper attempts to examine and compare prevalence rates and symptom patterns of DSM substance... more This paper attempts to examine and compare prevalence rates and symptom patterns of DSM substance-induced and other mood disorders. 243 cocaine-dependent outpatients with cocaine-induced mood disorder (CIMD), other mood disorders, or no mood disorder were compared on measures of psychiatric symptoms. The prevalence rate for CIMD was 12% at baseline. Introduction of the DSM-IV diagnosis of CIMD did not substantially affect rates of the other depressive disorders. Patients with CIMD had symptom severity levels between those of patients with and without a mood disorder. These findings suggest some validity for the new DSM-IV diagnosis of CIMD, but also suggest that it requires further specification and replication.
The Journal of Emergency Medicine, 2016
Maternal resuscitation in the emergency department requires planning and special consideration of... more Maternal resuscitation in the emergency department requires planning and special consideration of the physiologic changes of pregnancy. Perimortem cesarean delivery (PMCD) is a rare but potentially life-saving procedure for both mother and fetus. Emergency physicians should be aware of the procedure's indications and steps because it needs to be performed rapidly for the best possible outcomes. We sought to review the approach to the critically ill pregnant patient in light of new expert guidelines, including indications for PMCD and procedural techniques. The prevalence of maternal cardiac arrest and survival outcomes of PMCD in the emergency department setting are difficult to estimate. Advanced cardiovascular life support protocols should be followed in maternal arrest with special considerations made based on the physiologic changes of pregnancy. The latest recommendations for maternal resuscitation are reviewed, including advance planning, rapid determination of gestational...
The Journal of emergency medicine, 2014
Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the ... more Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. To review multiple techniques for managing a shoulder dystocia in the ED. We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.
Emergency Medicine Clinics of North America, May 1, 2011
Overview and Epidemiology Appendicitis is the most common cause of abdominal pain requiring surgi... more Overview and Epidemiology Appendicitis is the most common cause of abdominal pain requiring surgical intervention. The lifetime risk of appendicitis is approximately 7%, with a current incidence of 86 per 100,000 patients per year. 1 Rates of appendicitis are highest in the second decade of life, with a slightly higher incidence of appendicitis occurring in males (ratio 1.4:1). 2 Appendiceal perforation rates also vary; patients at extremes of age are more likely to have perforated at their time of diagnosis. 1 Early diagnosis of appendicitis is paramount, because patient morbidity is increased once appendicitis becomes complicated by abscess and perforation. Pathophysiology The appendix is located on the posteromedial surface of the cecum, approximately 3 cm from the ileocecal valve. Its length varies from 8 to 13 cm, and its anatomic location within the abdomen is variable. 3 Although the appendix has no known function, recent studies propose that it acts as a reservoir for commensal bacteria in the colon. 4 Appendicitis occurs when the appendiceal lumen becomes obstructed by fecaliths, adhesions, enlarged lymph nodes, foreign bodies, parasites, or, less commonly, tumors. 5,6 Once obstruction occurs, the intraluminal pressure within the appendix begins to increase as mucosal secretions accumulate, leading to appendiceal distension. This distension in turn stimulates visceral afferent nerves that enter the spinal cord at the T8 to T10 level, causing dull epigastric or periumbilical pain. As obstruction continues, pressures within the appendix impede venous and lymphatic drainage, allowing bacteria and neutrophils to invade the walls of the appendix. More localized
The Journal of emergency medicine, Aug 1, 2016
Cambridge University Press eBooks, Apr 23, 2013
The Journal of emergency medicine, Mar 1, 2014
Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, o... more Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. Objective: To review multiple techniques for managing a shoulder dystocia in the ED. Discussion: We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Conclusions: Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.
Arlene Frank is now at Health Enhancement Services, Inc.,
The Journal of Emergency Medicine, 2014
Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, o... more Background: Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. Objective: To review multiple techniques for managing a shoulder dystocia in the ED. Discussion: We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Conclusions: Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.
The Journal of Emergency Medicine, 2016
The Journal of emergency medicine, 2011
Emergency medicine clinics of North America, 2011
Appendicitis, diverticulitis, and colitis are common gastrointestinal conditions presenting to th... more Appendicitis, diverticulitis, and colitis are common gastrointestinal conditions presenting to the emergency department (ED). Although it is a common condition, the diagnosis of appendicitis remains challenging, and the approach to this disease continues to evolve. The diagnostic approach to diverticulitis is more straightforward, and treatment and the decision whether to hospitalize varies with disease severity. Colitis may be caused by inflammatory bowel disease, ischemia, or infection. This article details an ED-based approach to each of these disease entities.
Behavioral Emergencies for the Emergency Physician, 2013
Behavioral Emergencies for the Emergency Physician, 2013
Psychotherapy: Theory, Research, Practice, Training, 2004
and Clinic: Michael Thase, MD (principal investigator), Dennis Daley, MSW (coprincipal investigat... more and Clinic: Michael Thase, MD (principal investigator), Dennis Daley, MSW (coprincipal investigator), Ishan M. Salloum, MD (co-principal investigator), and Judy Lis, MSN (project director). The training unit heads of the Cognitive Therapy Training Unit were
The Journal of Emergency Medicine, 2011
American Journal on Addictions, 1999
This paper attempts to examine and compare prevalence rates and symptom patterns of DSM substance... more This paper attempts to examine and compare prevalence rates and symptom patterns of DSM substance-induced and other mood disorders. 243 cocaine-dependent outpatients with cocaine-induced mood disorder (CIMD), other mood disorders, or no mood disorder were compared on measures of psychiatric symptoms. The prevalence rate for CIMD was 12% at baseline. Introduction of the DSM-IV diagnosis of CIMD did not substantially affect rates of the other depressive disorders. Patients with CIMD had symptom severity levels between those of patients with and without a mood disorder. These findings suggest some validity for the new DSM-IV diagnosis of CIMD, but also suggest that it requires further specification and replication.
The Journal of Emergency Medicine, 2016
Maternal resuscitation in the emergency department requires planning and special consideration of... more Maternal resuscitation in the emergency department requires planning and special consideration of the physiologic changes of pregnancy. Perimortem cesarean delivery (PMCD) is a rare but potentially life-saving procedure for both mother and fetus. Emergency physicians should be aware of the procedure's indications and steps because it needs to be performed rapidly for the best possible outcomes. We sought to review the approach to the critically ill pregnant patient in light of new expert guidelines, including indications for PMCD and procedural techniques. The prevalence of maternal cardiac arrest and survival outcomes of PMCD in the emergency department setting are difficult to estimate. Advanced cardiovascular life support protocols should be followed in maternal arrest with special considerations made based on the physiologic changes of pregnancy. The latest recommendations for maternal resuscitation are reviewed, including advance planning, rapid determination of gestational...
The Journal of emergency medicine, 2014
Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the ... more Precipitous obstetric deliveries can occur outside of the labor and delivery suite, often in the emergency department (ED). Shoulder dystocia is an obstetric emergency with significant risk of adverse outcome. To review multiple techniques for managing a shoulder dystocia in the ED. We review various techniques and approaches for achieving delivery in the setting of shoulder dystocia. These include common maneuvers, controversial interventions, and interventions of last resort. Emergency physicians should be familiar with multiple techniques for managing a shoulder dystocia to reduce the chances of fetal and maternal morbidity and mortality.