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409 attempt to make democracy work in a society which is yearly becoming more complex. B INFECTIONS WITH NON-SPORING ANAEROBES THE frequency of gas gangrene and tetanus in the wounded of the 1914-18 war led to much useful research on the spore-bearing anaerobes, resulting in new methods for their cultivation and identification. The present war has given a further stimulus to the study of these anaerobic bacteria, but so far little attention has been paid to the non-sporing anaerobes. MacLennan has described a gangrenous myositis, to be distinguished from clostridial gas gangrene, due apparently to a symbiotic action between the anaerobic streptococcus and one or other of the aerobic pyogenic cocci, while on another page Forbes and Goligher report a case of genera- lised infection with a pleomorphic anaerobic gram- negative bacillus, Bacterium necrophorum. In peace- time these two organisms, the anaerobic streptococcus and the necrophorus bacillus, are not infrequently associated with severe and characteristic-though, to the uninitiated puzzlin-infections, and they are likely to be responsible for similar infections in war casualties. In civilian practice generalised infection with these non-sporing anaerobes is seen most often after difficult labour or septic abortion where there are retained products acting as a culture medium. Pelvic peritonitis, or more typically, septic thrombophlebitis, follows, and from the thrombophlebitis emboli are thrown off into the circulation to be riddled out in the lungs particularly. Empyema is a common sequel to these multiple lung abscesses. Clinically this type of infection is charac- terised by a remittent temperature to 103°-105° F. asso- ciated with daily rigors, signs of lung involvement, an increasing anaemia and a downhill course. Spontaneous recovery sometimes occurs for no obvious reason ; the infection resists sulphonamide therapy. Anaerobic blood- culture reveals a non-haemolytic streptococcus or a fine gram-negative bacillus, alone or associated with each other or with other bacteria such as diphtheroids, enterococci, or coliform bacilli. An essentially similar syndrome has been described by French writers 2 as a sequel to periton- sillar abscess ; the anaerobic gram-negative bacillus in these infections is called Bacillus funduliformis but is probably identical with Bact. necrophorum. These organisms, incidentally, are poorly pathogenic for laboratory animals, and in this respect differ from the Bact. necrohoum of calf diphtheria, foot-rot in sheep, and labial necrosis of rabbits. Harris and Brown who recovered the organism from infected caesarean ’ wounds, therefore suggested the name " pseudo-necro- phorus " for the human variant. Both the necrophorus bacillus and the anaerobic streptococcus, of which there are also several variants,4 are to be found in the healthy body cavities (mouth, intestine and female genital canal) *and infection with one or other of them usually follows some necrosis or devitalisation of local tissue. The range of these infections had lately been reviewed by Meleney and his co-workers.5 Wounds elsewhere in the body, especially if there is necrotic tissue, may also act as a primary focus, and this is a possible explanation of Forbes and Goligher’s case where the infection began at the site of a compound fracture of the thigh. Routine anaerobic culture needs to be practised more in bacteriological laboratories so that infections of this type shall not be missed. Useful advice is given in the second edition of the Medical Research Council’s memo- randum no. 2 on gas gangrene. , 1. MacLennan, J. D. Lancet, 1943, i, 584. 2. Lemierre, A. Ibid, 1936, i, 701. 3. Harris, J. W. and Brown, J. D. Bull. Johns Hopk. Hosp. 1927, 40, 203. 4. Prévot, A. R. Manuel de Classification et de Détermination des Bactéries Anaérobies, Paris, 1940, p. 27. 5. Sandusky, W. R., Pulaski, E. J., Johnson, B. A., Meleney, F. L. Surg. Gynec. Obstet. 1942, 75, 145. TOO MUCH SUN Air Commodore Morton told the Royal Society of Tropical Medicine and Hygiene on March 16 something of his experiences in the prevention and treatment of heat effects during five hot seasons in Iraq. Superstitions about sunstroke have been .discarded with spinal pads, but the topee is still useful in really hot parts of the tropics. Ill effects from the sun are due simply to over- heating of the tissues and body fluids ; they are essenti- ally similar to those seen in furnace workers in temperate climates. The least serious result is fainting, caused by temporary cardiovascular disturbance but without derangement of the chloride balance. More serious. exposure leads to heat exhaustion. Collapse, profuse perspiration, fall in blood-pressure, nausea, vomiting and severe muscular cramps are associated with a fall in blood and urinary chlorides. Mouth temperature may be normal but rectal temperature is often raised to 100° or 101° F. The victims are usually of the lean, anxious and spare type ; many are affected soon after their first arrival in hot climates. Treatment is best carried out in a temperature of about 75° F. Abundant fluid, with glucose and sodium chloride, should be given by mouth. If necessary, 0.9% sodium chloride must be given intra- venously, but it is important to keep careful watch on the balance between input and output of fluids ; other- wise there is a serious risk of pulmonary oedema. Diuresis and a rise in urinary chlorides are reliable signs of recovery. Attempts to correct acidosis or alkalosis should not be made in the absence of strict biochemical control. The most serious condition is that of heat hyperpyrexia. Thick-necked chronic alcoholics with high blood-pressure are most often affected, usually after they have been several years in the tropics. Besides a fall in urinary chlorides there is a failure of heat regulation. The flushed face, dry burning skin, delirium or coma are associated with rectal temperatures up to 108°-112° F. If life is to be saved the temperature must be brought down quickly to 102-103° F. by whatever means ’ are at hand. In active service conditions, an iced enema is indicated, but this interferes with the recording of rectal temperatures. In hospitals, sponging with cold or iced water and the use of fans should be continued until the temperature falls. A useful wind-tunnel was improvised with a shock cradle covered by d blanket. Ice-bags were hung from the roof, and fans blew a stream of cold air over the body. Air-conditioning of wards is a great help to nu-rsing ; 60° F. is the temperature recom- mended for the initial stages, but as soon as the danger from hyperpyrexia is past the patient should be nursed at 75° F. Fluid with salt and glucose should be given by mouth ; intravenous salines are seldom needed unless vomiting is persistent-they may do harm by overload- ing a failing circulation. It is important to be sure that symptoms are not due to malignant tertian malaria, and intravenous quinine should be given if any doubt arises. Much can be done to prevent casualties from heat effects by ensuring that newcomers are introduced gradually to the sun, and by arrangement of working hours so- as to allow as many as possible to spend some of their off-duty time in air-conditioned rooms. Men should be encouraged to " drink more water " and " eat more salt." When the thermometer is really high, extra salt should be put in the food. To ensure that this is done the medical officer may have to take his courage in one hand and a bag of salt in. the other and have it out with the cook. Brigadier F. A. E. CREW, FRs, has been appointed to the Bruce and John Usher chair of public health in the University of Edinburgh in succession to Prof. P. S. Lelean who has retired. Dr. Crew has held the Buchanan chair of animal genetics in the university since 1928, but for nearly two years has been working in the medical department at the War Office, where he is director of biological research.

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409

attempt to make democracy work in a society which isyearly becoming more complex. ’ B

INFECTIONS WITH NON-SPORING ANAEROBESTHE frequency of gas gangrene and tetanus in the

wounded of the 1914-18 war led to much useful researchon the spore-bearing anaerobes, resulting in new methodsfor their cultivation and identification. The presentwar has given a further stimulus to the study of theseanaerobic bacteria, but so far little attention has beenpaid to the non-sporing anaerobes. MacLennan hasdescribed a gangrenous myositis, to be distinguishedfrom clostridial gas gangrene, due apparently to a

symbiotic action between the anaerobic streptococcus andone or other of the aerobic pyogenic cocci, while onanother page Forbes and Goligher report a case of genera-lised infection with a pleomorphic anaerobic gram-negative bacillus, Bacterium necrophorum. In peace-time these two organisms, the anaerobic streptococcusand the necrophorus bacillus, are not infrequentlyassociated with severe and characteristic-though, tothe uninitiated puzzlin-infections, and they are likelyto be responsible for similar infections in war casualties.

In civilian practice generalised infection with thesenon-sporing anaerobes is seen most often after difficultlabour or septic abortion where there are retainedproducts acting as a culture medium. Pelvic peritonitis,or more typically, septic thrombophlebitis, follows, andfrom the thrombophlebitis emboli are thrown off intothe circulation to be riddled out in the lungs particularly.Empyema is a common sequel to these multiple lungabscesses. Clinically this type of infection is charac-

terised by a remittent temperature to 103°-105° F. asso-ciated with daily rigors, signs of lung involvement, anincreasing anaemia and a downhill course. Spontaneousrecovery sometimes occurs for no obvious reason ; theinfection resists sulphonamide therapy. Anaerobic blood-culture reveals a non-haemolytic streptococcus or a finegram-negative bacillus, alone or associated with each otheror with other bacteria such as diphtheroids, enterococci,or coliform bacilli. An essentially similar syndrome hasbeen described by French writers 2 as a sequel to periton-sillar abscess ; the anaerobic gram-negative bacillus inthese infections is called Bacillus funduliformis but is

probably identical with Bact. necrophorum. Theseorganisms, incidentally, are poorly pathogenic for

laboratory animals, and in this respect differ from theBact. necrohoum of calf diphtheria, foot-rot in sheep,and labial necrosis of rabbits. Harris and Brownwho recovered the organism from infected caesarean ’

wounds, therefore suggested the name " pseudo-necro-phorus " for the human variant. Both the necrophorusbacillus and the anaerobic streptococcus, of which thereare also several variants,4 are to be found in the healthybody cavities (mouth, intestine and female genital canal)*and infection with one or other of them usually followssome necrosis or devitalisation of local tissue. The

range of these infections had lately been reviewed byMeleney and his co-workers.5 Wounds elsewhere in the

body, especially if there is necrotic tissue, may also actas a primary focus, and this is a possible explanation ofForbes and Goligher’s case where the infection began atthe site of a compound fracture of the thigh.

Routine anaerobic culture needs to be practised morein bacteriological laboratories so that infections of thistype shall not be missed. Useful advice is given in thesecond edition of the Medical Research Council’s memo-randum no. 2 on gas gangrene. ,

1. MacLennan, J. D. Lancet, 1943, i, 584.2. Lemierre, A. Ibid, 1936, i, 701.3. Harris, J. W. and Brown, J. D. Bull. Johns Hopk. Hosp. 1927,

40, 203.4. Prévot, A. R. Manuel de Classification et de Détermination des

Bactéries Anaérobies, Paris, 1940, p. 27.5. Sandusky, W. R., Pulaski, E. J., Johnson, B. A., Meleney, F. L.

Surg. Gynec. Obstet. 1942, 75, 145.

TOO MUCH SUNAir Commodore Morton told the Royal Society of

Tropical Medicine and Hygiene on March 16 something ofhis experiences in the prevention and treatment of heateffects during five hot seasons in Iraq. Superstitionsabout sunstroke have been .discarded with spinal pads,but the topee is still useful in really hot parts of thetropics. Ill effects from the sun are due simply to over-heating of the tissues and body fluids ; they are essenti-ally similar to those seen in furnace workers in temperateclimates. The least serious result is fainting, caused bytemporary cardiovascular disturbance but without

derangement of the chloride balance. More serious.exposure leads to heat exhaustion. Collapse, profuseperspiration, fall in blood-pressure, nausea, vomiting andsevere muscular cramps are associated with a fall in bloodand urinary chlorides. Mouth temperature may benormal but rectal temperature is often raised to 100° or101° F. The victims are usually of the lean, anxious andspare type ; many are affected soon after their firstarrival in hot climates. Treatment is best carried out ina temperature of about 75° F. Abundant fluid, withglucose and sodium chloride, should be given by mouth.If necessary, 0.9% sodium chloride must be given intra-venously, but it is important to keep careful watch onthe balance between input and output of fluids ; other-wise there is a serious risk of pulmonary oedema. Diuresisand a rise in urinary chlorides are reliable signs of

recovery. Attempts to correct acidosis or alkalosis shouldnot be made in the absence of strict biochemical control.The most serious condition is that of heat hyperpyrexia.

Thick-necked chronic alcoholics with high blood-pressureare most often affected, usually after they have beenseveral years in the tropics. Besides a fall in urinarychlorides there is a failure of heat regulation. Theflushed face, dry burning skin, delirium or coma areassociated with rectal temperatures up to 108°-112° F.If life is to be saved the temperature must be broughtdown quickly to 102-103° F. by whatever means ’ areat hand. In active service conditions, an iced enemais indicated, but this interferes with the recording ofrectal temperatures. In hospitals, sponging with coldor iced water and the use of fans should be continueduntil the temperature falls. A useful wind-tunnel wasimprovised with a shock cradle covered by d blanket.Ice-bags were hung from the roof, and fans blew a streamof cold air over the body. Air-conditioning of wards isa great help to nu-rsing ; 60° F. is the temperature recom-mended for the initial stages, but as soon as the dangerfrom hyperpyrexia is past the patient should be nursedat 75° F. Fluid with salt and glucose should be givenby mouth ; intravenous salines are seldom needed unlessvomiting is persistent-they may do harm by overload-ing a failing circulation. It is important to be sure thatsymptoms are not due to malignant tertian malaria, andintravenous quinine should be given if any doubt arises.Much can be done to prevent casualties from heat effects

by ensuring that newcomers are introduced graduallyto the sun, and by arrangement of working hours so- asto allow as many as possible to spend some of theiroff-duty time in air-conditioned rooms. Men should be

encouraged to " drink more water " and " eat more salt."

When the thermometer is really high, extra salt shouldbe put in the food. To ensure that this is done the medicalofficer may have to take his courage in one hand and a

bag of salt in. the other and have it out with the cook.

Brigadier F. A. E. CREW, FRs, has been appointed tothe Bruce and John Usher chair of public health in theUniversity of Edinburgh in succession to Prof. P. S.Lelean who has retired. Dr. Crew has held the Buchananchair of animal genetics in the university since 1928,but for nearly two years has been working in the medicaldepartment at the War Office, where he is director ofbiological research.