Tuesday October 28, 2008
Auto-PEEP
Q; What level of extrinsic PEEP should be applied to counter act (intrinsic) auto-PEEP?
A; 75 - 85% of auto-PEEP.
Keeping extrinsic PEEP lower than auto-PEEP not only effectively counter acts auto-PEEP but also any ciruclatory depression or lung hyperinflation is unlikely to occur at extrinsic PEEP slightly lower than intrinsic PEEP value.
Read precise review on auto-peep: Auto-positive end-expiratory pressure: Mechanisms and treatment , M.M. MUGHAL, D.A. CULVER, O.A. MINAI, and A.C. ARROLIGA - CLEVELAND CLINIC JOURNAL OF MEDICINE VOLUME 72 • NUMBER 9 SEPTEMBER 2005
Tuesday, October 28, 2008
Monday, October 27, 2008
Saturday, October 25, 2008
Saturday October 25, 2008
Warning regarding scam “Certification Boards”
ABIM has received reports from several of our diplomates regarding letters and solicitations they have received from groups offering “certification” in Geriatric Medicine, Cardiology and Hospital Medicine, among other things. ABIM is concerned about the welfare of patients who may choose doctors representing themselves as “board certified” based on their possession of a certificate from unaccredited “boards” that award certificates but require no accredited training, testing or medical background review. Have you been contacted by any of the following groups? These phony “medical boards” have been reported to ABIM as fraudulent, and if you hear from them, or receive any certification information that seems suspicious, ABIM would like to know about it.
If you have been approached by an organization calling itself a board that is not a member of ABMS or the American Osteopathic Association or has not established its status by state licensure board recognition, please e-mail security@abim.org for information on these possible “scams” and what can be done to assure the professional integrity of medical specialty certification.
Warning regarding scam “Certification Boards”
ABIM has received reports from several of our diplomates regarding letters and solicitations they have received from groups offering “certification” in Geriatric Medicine, Cardiology and Hospital Medicine, among other things. ABIM is concerned about the welfare of patients who may choose doctors representing themselves as “board certified” based on their possession of a certificate from unaccredited “boards” that award certificates but require no accredited training, testing or medical background review. Have you been contacted by any of the following groups? These phony “medical boards” have been reported to ABIM as fraudulent, and if you hear from them, or receive any certification information that seems suspicious, ABIM would like to know about it.
If you have been approached by an organization calling itself a board that is not a member of ABMS or the American Osteopathic Association or has not established its status by state licensure board recognition, please e-mail security@abim.org for information on these possible “scams” and what can be done to assure the professional integrity of medical specialty certification.
Friday, October 24, 2008
Thursday, October 23, 2008
Thursday October 23, 2008
Answer: Right pulmonary vein aneurysm (PVA)
Congenital PVA may progressively increase in size over the years and may rupture. Pulmonary venous aneurysm may occur as a component of congenital pulmonary arteriovenous malformation (PAVMN) or traumatic pulmonary arteriovenous pseuodoaneurysm (PAP). symptoms iclude hypoxia, congestive heart failure, hemoptysis and cerebral abscess. Pulmonary venous aneurysm may also be acquired and is known to be associated with rheumatic mitral insufficiency.
All these lesions may present as a mediastinal mass. Computed tomography, echocardiography and angiography usually help to differentiate from other vascular lesions.
Q: What is your Diagnosis?
Answer: Right pulmonary vein aneurysm (PVA)
Congenital PVA may progressively increase in size over the years and may rupture. Pulmonary venous aneurysm may occur as a component of congenital pulmonary arteriovenous malformation (PAVMN) or traumatic pulmonary arteriovenous pseuodoaneurysm (PAP). symptoms iclude hypoxia, congestive heart failure, hemoptysis and cerebral abscess. Pulmonary venous aneurysm may also be acquired and is known to be associated with rheumatic mitral insufficiency.
All these lesions may present as a mediastinal mass. Computed tomography, echocardiography and angiography usually help to differentiate from other vascular lesions.
Wednesday, October 22, 2008
Wednesday October 22, 2008
Q: What is half life of Xigris - Recombinant Protein C (Activated) ?
A; Xigris has a short half-life, indicating rapid inactivation of Xigris after stopping infusion and more than 70% get eliminate within 30 minutes.
General recommendations are
Q: What is half life of Xigris - Recombinant Protein C (Activated) ?
A; Xigris has a short half-life, indicating rapid inactivation of Xigris after stopping infusion and more than 70% get eliminate within 30 minutes.
General recommendations are
- Discontinue Xigris 2 hours prior to performing an invasive procedure and may restart immediately after uncomplicated, less invasive procedures
- Initiation of Xigris can be considered 12 hours after major invasive procedures or surgery
- Prophylactic heparin/LMWH may be continued while patient is on xigris
Note:
- Xigris may variably prolong the APTT. Therefore, the APTT cannot be reliably used to assess the status of the coagulopathy during Xigris infusion.
- Xigris has minimal effect on the PT
Tuesday, October 21, 2008
Tuesday October 21, 2008
Q: What percentage of patients may develop complications secondary to brachial artery cannulation?
Answer: upto 42%
It was established almost 40 years ago by Mortensen 1 that brachial artery cannulation is not an ideal location. The lack of collateral circulation about the elbow may predispose to forearm and hand ischemic complications.
Case report & review: Compartment Syndrome of the Forearm and Hand After Brachial Artery Cannulation (pdf) - Anesth Analg 1995; 81: 1092-4
Reference:
1. Mortensen JD. Clinical sequelae from arterial needle puncture, cannulation, and incision. Circulation 1967;35:1118-23.
Q: What percentage of patients may develop complications secondary to brachial artery cannulation?
Answer: upto 42%
It was established almost 40 years ago by Mortensen 1 that brachial artery cannulation is not an ideal location. The lack of collateral circulation about the elbow may predispose to forearm and hand ischemic complications.
Case report & review: Compartment Syndrome of the Forearm and Hand After Brachial Artery Cannulation (pdf) - Anesth Analg 1995; 81: 1092-4
Reference:
1. Mortensen JD. Clinical sequelae from arterial needle puncture, cannulation, and incision. Circulation 1967;35:1118-23.
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